124 results about "Bone spicules" patented technology

A method of forming a bone composite, comprising: providing bone tissue; grinding said bone tissue to form ground tissue; molding the ground bone tissue into a bone composite; applying a binder to the bone composite; applying a vacuum to the mold, and optionally milling or refining the bone composite to the desired shape. Additionally, bone tissue composites made therefrom are included. The composites may be, for example, a bone pin, screw, or prosthesis.

The invention discloses a skin occlusion outer fixing bracket. The skin occlusion outer fixing bracket comprises a threaded flat rod, a pair of sliding side blocks, a pair of sheet nuts, a plurality of Z-shaped bone spicules and two springs, wherein the pair of sliding side blocks is arranged on both sides of the threaded flat rod in a sleeving way; the pair of sheet nuts is screwed at the two ends of the threaded flat rod and corresponds to the sliding side blocks one by one; the two springs are arranged on the threaded flat rod in a sleeving way and are connected with corresponding sliding side blocks and sheet nuts respectively; the heads of the two Z-shaped bone spicules are relatively fixed on opposite sides of the two sliding side blocks respectively. During use of the skin occlusion outer fixing bracket, skin or soft tissues are prevented from being cut, so that secondary harm is avoided.

The invention provides a medical self-drilling and self-tapping fixed bone needle, comprising an end drill edge part (1) with integrated structure, a middle cylinder part (2) and an interface part (3) at the tail end; the drill edge part (1) comprises a drill edge (11), a tapping edge (12) and a fixed thread (13); the tapping edge (12) is arranged between the drill edge (11) and the fixed thread (13); the shape of the tapping edge (12) is gradually transited from low and flat drill edge (11) to an edge identical to the fixed thread (13). The medical self-drilling and self-tapping fixed bone needle overcomes the shortages that the existing bone needle operation has complex process and inconvenient operation and the operation time and blood outgoing quantity of the patient are increased, etc. The medical self-drilling and self-tapping fixed bone needle can complete the operations of drilling, tapping and bone needle fixing.

The invention provides an external fixing device for the pelvis. The external fixing device comprises at least two closed ring assemblies, a plurality of connecting assemblies and a plurality of fixing assemblies. The closed ring assemblies are aligned and separated in the first direction perpendicular to the pelvis, each closed ring assembly comprises at least two rigid bent rod parts, the bent rod parts are movably connected to be closed to surround and extrude the pelvis, and the closed shape is constructed to expand and contract perpendicular to the first direction to adjust restraint on the pelvis; each connecting assembly is connected between two corresponding adjacent closed ring assemblies; the fixing assemblies are pivotally connected to at least one part of the connecting assemblies and abut against and are fixed to the body surface outside the pelvis or are screwed and fixed into the pelvis with an adjustable angle relative to the first direction. Thus, pressure applied to the pelvis can be adjusted at 360 degrees, the volume of the pelvis is constrained, and the negative suction effect is avoided. An ejector rod or a plant implanting needle is screwed into the bone surface, so that the pelvis is firmly fixed.

The invention relates to a method and a device of reactor culture sponge or the cell production biological siliceous material. The reactor applies natural seawater, micro algae culture sponge of the normal sponge bait, wherein the adhesion base of the growth face which forms 45-135 degree with the horizontal direction, the sponge or the cell can grow along the growth surface, the natural seawater has silane coupling agent, the bone spicule is acquired with the phenomenon that the original skeleton is abandoned in the growth and motion process of the sponge structure, or the biological siliceous material is acquired by producing bone spicule in the exsomatize sponge cell culture system. The production method introduces silane coupling agent by constructing the sponge culture reactor, which proceeds with the biological synthesis of the siliceous material with the chemical modification in order to make the sponge or the sponge cell into 'factory' of specific biological siliceous material, and provides the probability of the application for synthesizing the sponge siliceous bone spicule.

The invention discloses an adjustable fixed brace, which comprises a skull fixation sleeve assembly (1), a pelvic bone fixation sleeve assembly (2) and a skull pelvis connecting rod assembly (3); wherein, the skull fixation sleeve assembly (1) It includes a skull fixation ring (11) and a skull bone pin (4) arranged on the skull fixation ring (11), and the pelvic fixation set (2) includes a pelvis fixation ring (21) and a skull pin (4) arranged on the The pelvic bone pin (5) on the pelvis fixing ring (21), the cranium pelvis connecting rod assembly (3) includes a cranium pelvis connecting rod, and the two ends of the cranium pelvis connecting rod are respectively connected with the skull pelvis fixing ring (11) is connected with the pelvic bone fixing ring (21); the characteristic is that: a length adjustment mechanism with a scale (6) is provided in the middle of the cranium-pelvis connecting rod. By adopting the adjustable fixing brace of the present invention, operation efficiency and operation effect can be improved.

The invention relates to the technical field of medical instruments, and provides to a single arm outer fixation frame. The single arm outer fixation frame comprises a sliding rod, sliding blocks andextending rods; fixing blocks are arranged at the two ends of the sliding rod respectively, and the sliding blocks are in slide connection with the sliding rod and located between the two fixing blocks; one extending rod is connected to each fixing block, one end of each extending rod is connected with the corresponding fixing block, and the other end of each extending rod is fixedly connected with one sliding block. Bone spicule holes are formed in the two sides of the sliding blocks and the two sides of the fixing blocks, the sliding blocks slide along the sliding rod, and the length of theextending rods can be adjusted to change the position of the bone spicule holes. According to the single arm outer fixation frame, the bone spicule position can be adjusted flexibly, and adjustment quantity is more accurate, which is beneficial for promoting bone growth and union in bone loss treatment.

The invention relates to a clamping mechanism for a robot-assisted lower limb fracture reduction operation. The clamping mechanism is composed of a fracture near-end fixing module, a fracture far-endclamping module and a reduction force testing module. The fracture near-end fixing module is installed on an operating bed. The fracture near-end fixing module is used for fixing a fracture near end through a bone needle; the fracture far-end clamping module is connected with a movable platform of a parallel reduction robot; the fracture far-end clamping module clamps the fracture far end throughthe bone needle, a far-end muscle bundle fixing plate of the reduction force testing module is installed on an arc support of the fracture far-end clamping module, and a force sensor installation baseof the reduction force testing module is fixed to a support of the fracture near-end fixing module. The clamping mechanism can achieve the fixing of the fracture near end of the lower limb of a patient, the clamping of the fracture far end and the precise reduction operation, can test the change rule between the reduction force and the driving force of a linear electric cylinder in the fracture reduction process, and can be used for the external force estimation and collision detection in the parallel reduction robot operation reduction process.

A registration system including a bone pin guide and a bone pin clamp. The bone pin guide may include a guide body, a first guide including a first guide through-hole having a first longitudinal axis, and a second guide including a second guide through-hole having a second longitudinal axis. The bone pin guide may guide first and second bone pins into a bone via the first and second guides. The bone pin clamp may include a clamp body, first, second, and third clamp through-holes extending through the clamp body, a plurality of registration indents defined on the clamp body, and a clamping mechanism including at least one adjustable fastener. The bone pin clamp may receive the first and second bone pins in the first and third clamp through-holes and guide a third bone pin into the bone via the second clamp through-hole.

The invention discloses a siliceous sponge bone spicule purifying method and a purifying system, and solves the problems in the prior art that the energy is consumed, the process is complicated and dangerous, the sponge bone spicule is not easy to purify by 100%, the negative charge is not eliminated, and the siliceous sponge bone spicule adsorbs the impurity easily. According to the purifying method, the purified siliceous sponge bone spicule is obtained by sequentially proportionally filtering, dispersively filtering, removing polarity, cleaning with distilled water the original siliceous sponge bone spicule. The purifying system comprises a proportional filtering device, a dispersive filtering device, a polarity removing device, a vibrating screen classifier, a cleaning device and a drying tank. The invention also provides the application of the siliceous sponge bone spicule prepared through the purifying method to a 3D printing material. The method is simple and convenient to operate, the siliceous sponge bone spicule purified through the method is high in purity, does not adsorb new impurities in the production, transportation and use process, and the safety is effectively improved.

The invention discloses a worm gear skull annular rod combined external fixing bracket which comprises a sliding block, wherein worm gear lateral plates are movably arranged at front and rear ends of the sliding block; worm gear teeth are arranged on the middle parts of the top ends of the worm gear lateral plates; arc-shaped sliding slots are formed in the middle parts of the worm gear lateral plates; scale marks are arranged on the upper sides of the front and rear side walls of the worm gear lateral plates; horizontal connecting rods are fixedly arranged at left and right ends of the worm gear lateral plates through connecting bolts; bone pinholes are formed in the front and rear sides of a jackscrew hole and an upper end face of the sliding block; a bone pin is in penetrated connection with the bone pinholes; a free skull bone block is driven by the bone pin fixed on free skull to move bone along a certain radian; worm support bases are fixedly arranged on front and rear sides of the top end of the sliding block; worm teeth are arranged on a side wall of the left end of a worm bolt; guiding blocks are arranged on the middle parts of the front and rear ends of the sliding block; the marking lines are arranged on the middle parts of the external ends of the guiding blocks; the marking lines are corresponding to the scale marks; the adjusting angle can be accurately controlled.

The invention discloses an arc-shaped external fixator for soft tissue traction. The arc-shaped external fixator for soft tissue traction is characterized by comprising a pair of arc-shaped guide rails, an arc-shaped rack, a sliding bar pin clip, a fixed bar pin clip, a worm, a clamp spring and multiple Z-shaped bone pins, wherein the sliding bar pin clip and the fixed bar pin clip are arranged on the two sides of the arc-shaped guide rails respectively in a sleeving mode, the worm is screwed to one end of the arc-shaped rack and the fixed bar pin clip, the clamp spring is arranged at the tail end of the worm in a sleeving mode, the Z-shaped bone pins are arranged on the sliding bar pin clip and the fixed bar pin clip, and the worm meshes with the arc-shaped rack through threads on the worm. In use, soft tissue can be pulled along an arc-shaped track, so that the arc-shaped external fixator for soft tissue traction is suitable for traction of soft tissue of cylindrical muscle or body, cutting of skin or soft tissue is avoided, and secondary injury is avoided.

The invention discloses refreshing acne-removal restoring cream and a making technology thereof. The refreshing acne-removal restoring cream is prepared from main materials including, by weight, 50-60parts of deionized water, 10-20 parts of aloe vera gel, 1-10 parts of propylene glycol, 1-7 parts of polydimethylsiloxane, 2-7 parts of cetostearyl alcohol, 1-6 parts of caprylic / capric triglyceride,0.5-6 parts of yeast ferment extracts, 1-5 parts of glycine betaine, 0.5-5 parts of chrysanthemum extracts and 1-4 parts of salicylate. In the formula of the raw materials, liquid microneedles are added, the main materials and auxiliary materials are stirred in sequence and mixed, so that the raw materials are evenly mixed, the emulsifying effect is improved, and the appearance quality is ensured. Bone spicules penetrate through the stratum corneum and reach the basal lamina to stimulate the basal lamina cells, the self-healing mechanism of the human body is started, metabolism of the cells is accelerated, old cells and dermotoxins naturally metabolize and fall off, epidermis recombination is achieved, micro pores are created for the skin so as to promote absorption, the nutrient absorption rate of the skin is greatly improved, and the effects of removing acne and restoring the skin are quickly achieved.

The invention relates to a series-parallel pelvic fracture reduction robot. The robot comprises a box body, a three-dimensional guide rail, a 3-RRR spherical parallel mechanism, a docking mechanism and an affected side pelvic clamping instrument. The three-dimensional guide rail is fixed on the box body, the 3-RRR spherical parallel mechanism is fixed on the three-dimensional guide rail, and the docking mechanism is fixed on a movable platform of the spherical parallel mechanism, so that a reduction robot system is quickly connected with the affected side pelvic clamping instrument, and preoperative disinfection is facilitated; and the docking mechanism is fixedly connected with the affected side pelvic clamping instrument, a bone needle holder is arranged on the pelvic clamping instrument and used for clamping bone needles, and a six-dimensional force sensor is arranged on the affected side pelvic clamping instrument and used for detecting the change condition of reduction force in the reduction process in real time, providing reduction force information for real-time monitoring in an operation and improving the safety of the reduction operation. The pelvic fracture reduction robot has the advantages of both a series configuration and a parallel configuration, and has the remarkable advantages of being large in working space, high in rigidity, large in bearing capacity, compact in structure, convenient to quickly connect and disinfect and the like.

The invention relates to the field of medical instruments. The invention discloses an electrically driven rotator cuff repair instrument. The device comprises a restorer main body, a sleeve and bone needles, the sleeve is arranged at the lower end of the restorer main body; the bone needle is arranged in the sleeve; a driving structure for driving the spicule to slide in the cavity of the sleeve is arranged on the restorer main body; the puncture part, protruding out of the sleeve, of the lower end of the spicule is in a preset bent shape; the tail end of the bone needle is provided with a tipend and a thread port for driving a suture; the driving structure comprises a motor and a transmission column body; the motor is fixed at the upper end of the restorer main body and connected with anexternal power supply, a cylindrical cavity is formed in the restorer main body, the transmission column body is located in the cylindrical cavity, the motor is connected with the upper end of the transmission column body and can drive the transmission column body to coaxially move in the cylindrical cavity, and the lower end of the transmission column body is connected with the upper end of thebone needle. The bone needle can be operated by a single person when used for puncturing and withdrawing, and is simple to operate and high in practicability.

The invention discloses a six-direction adjusting fracture reduction device, and relates to a fracture reduction device. The invention aims to solve the problems of inaccurate alignment, prolonged operation time, increased labor intensity of doctors, low alignment precision and difficult rehabilitation of patients due to poor flexibility of existing fracture reduction devices. A near-end fixing seat and a far-end fixing seat are connected through a sliding guide rail, and a sliding seat is slidably installed on the sliding guide rail between the near-end fixing seat and the far-end fixing seat; the near-end fixing seat and the far-end fixing seat are both installed at the end of a storage base; a near-end semi-ring assembly can ascend, descend and be rotationally installed on the near-endfixing seat, and the near-end semi-ring assembly can swing leftwards and rightwards; and a sliding seat semi-ring assembly can ascend, descend and be rotationally installed on the sliding seat, the sliding seat semi-ring assembly can swing leftwards and rightwards, and a bone needle adjusting assembly is mounted on the near-end semi-ring assembly and the sliding seat semi-ring assembly. The deviceis used for assisting an orthopedist in long bone fracture reduction.

The invention discloses a calcaneus orthopaedics ring bar combined external fixation support comprising an upper ring piece and a lower ring piece connected with the upper ring piece through a fixing member; two ends of the upper and lower ring pieces are respectively provided with a plurality of screw holes; the screw hole is provided with a needle clamp cover; the bottom of the needle clamp cover is provided with a plurality of needle slots; a bone spicule is arranged in each needle slot. The upper and lower ring pieces are interlaced so as to adapt to relative angle and position changes of fracture bone spicule fixation, thus positioning the calcaneus bone blocks in different directions, lengths and angles; the calcaneus orthopaedics ring bar combined external fixation support is simple in structure, and convenient in adjusting.

The invention relates to the technical field of medical instruments, and in particular relates to a thread spicule. The thread spicule comprises a fixing segment, a first support segment and a second support segment, wherein the fixing segment is connected with proximal bone cortex; and the first support segment and the second support segment are used for supporting offside bone cortex and are not equal in length. According to the scheme, the thread spicule comprises the first support segment and the second support segment which are different in length. In an actual operation, the first support segment or the second support segment with a proper length is selected to support the offside bone cortex according to the bone fracture position, so that the thread spicule can be applicable to support different bone fracture parts; the application range of the thread spicule is expanded; and the operation preparation work is simplified.

The invention relates to a connecting device. The connecting device comprises an array bracket, a reflective ball mounting bracket, a rotary handle, an array locking bolt and an array connecting rod, wherein the array bracket is used for installing a reflective ball array; the reflective ball mounting bracket is used for mounting a reflective ball; the rotary handle is used for locking and unlocking the connecting device; one end of the array locking bolt is connected to the rotary handle, and the other end of the array locking bolt is screwed into the bottom of the array bracket and is used for connecting the rotary handle and the array bracket. the array locking bolt is used for sealing a cover; and one end of the array connecting rod is a regular hexagon boss used for connecting an array bracket body, and the other end of the array connecting rod is provided with threads used for connecting a bone needle clamp. The array connecting rod adopts a polygonal boss design, and various angles can be selected when the array connecting rod is connected with the array bracket main body. In a joint operation, the position and the direction of a spicule nailed into a bone vary from person to person, the multi-angle connecting device is adopted to connect the bone needle clamp and a reflective ball bracket, so that a high-precision optical positioning instrument can identify the reflective ball on the array bracket at the best working angle, and more accurate parameters are provided for doctors to use a robot to navigate the orthopedic surgery.

The invention relates to a novel high-efficiency and easy-to-pull-out bone spicule, include a metal needle body, a levo-polylactic acid needle, an L-polylactic acid sheath and a metal needle handle. The metal needle body is provided with a positioning groove on that front end face and the rear end face, the positioning groove is coaxially distributed with the metal needle body. At least two connecting slots are uniformly arranged on that outer surface of the metal needle. the left-hand polylactic acid needle head comprises a connecting post and a cone head, the metal needle handle comprises aguide post and a tail shank, and the left-hand polylactic acid sheath is a hollow tubular structure coaxially distribute with the metal needle body, and is coated on the outer surface of the metal needle and interconnected with the outer surface of the metal needle through the connecting slot. On the one hand, the bone spicule has good structural strength, and can effectively promote the speed ofbone healing; on the other hand, the bone spicule can effectively improve the efficiency when the bone needle is pulled out from the bone; moreover, the wound area after pulling out is small, and thewound is convenient for rapid healing.

The invention discloses a universal phalanx and metacarpus annular external fixator. The fixator comprises two fixator bodies and a rotating assembly, each fixator body comprises an arc body, two boneneedles and a universal head, each two bone needles are movably connected to the two ends of the corresponding arc body, the universal heads are arranged in the middles of the arc bodies, the two fixator bodies are connected with the two ends of the rotating assembly through the universal heads, and the two fixator bodies can relatively rotate. When the universal phalanx and metacarpus annular external fixator is clinically arranged, the fixator can move in a multi-degree-of-freedom mode through adjustment of the universal heads according to the actual fracture conditions so that the fixatorcan be matched with the different fracture conditions more easily, and the clinical installation requirement is met; and during postoperative rehabilitation exercise, the two fixator bodies can relatively rotate through adjustment of the rotating assembly according to medical advices so that two phalanges of different sections can rotate and bend along with the fixator bodies, the purpose of postoperative early-stage functional exercise is achieved, and the postoperative joint movement function recovery is facilitated.

The invention discloses an external fixation device for the reconstruction of a femoral head. The external fixation device includes an internal sleeve, a screw rod is adjusted in a spiral and twist mode according to the distance between a broken bone of a patient and a hip joint, the matching position of the internal and external sleeves is adjusted, spicules are nailed into the broken bone, the spicules located outside the body are arranged into spicule installation holes, and positioning is achieved; the position of a turntable on the screw rod is adjusted according to the actual demand, and the top tight positioning of a positioning block is achieved after the adjustment is finished. The spicules are nailed into the hip joint, so that the spicules located outside the body are arranged into circular holes formed through the butt connection of two arc-shaped grooves, and the clamping of the spicules and positioning of the positioning block are achieved through locking nuts. The spicules are nailed into the lower part of the broken bone so that the spicules located outside the body are arranged into the circular holes formed through the butt connection of the two arc-shaped grooves, and the clamping of the spicules and the positioning of the positioning block are achieved through locking nuts. The spicule positioning of the structure allows gravity to be dispersed to the hip joint to facilitate a patient to move around.

The invention discloses a self-tapping bone needle. The needle comprises a needle body part and a needle tip part, the needle tip part is provided with a first needle tip section structure and a second needle tip section structure; the first needle tip section structure comprises a main cutting plane extending in an axis direction of the bone needle from the tip end of the needle tip part; the second needle tip section structure comprises an auxiliary cutting plane which extends from the tip end of the needle tip part and intersects with the main cutting plane to form an acute angle. The maincutting plane and the auxiliary cutting plane are intersected to form a cutting edge for cutting bones. The needle body part is provided with a needle body section, the needle body section extends from the tail end of the main cutting plane, and an included angle larger than 90 degrees is formed between the needle body section and the main cutting plane. According to the self-tapping bone needle,the technical problem that an existing bone needle is low in operation efficiency is solved, and the self-tapping bone needle capable of reducing operation steps is provided.

The invention discloses an external fixation support for bone lengthening, which mainly comprises semicircular connecting rods, bone needles, lengthener components and support rods, wherein the two semicircular connecting rods are shaped like an open pentagon and arranged up and down in parallel; the two support rods are equidistantly arranged in parallel at the ends of the central edges of the semicircular connecting rods in the axial direction; the ends of the support rods are in fastened connection with the semicircular connecting rods via rod-rod fastening clips respectively; the bone needles are simultaneously arranged at the ends and the central positions of the semicircular connecting rods respectively; the bone needles are in fastened connection with the semicircular connecting rods via needle-rod fastening clips respectively; and the lengthener components comprise the support rods, locking nuts, adjusting core rods and adjusting handles. The external fixation support has the advantages of simple structure, low manufacturing cost, small size, firmness and reliability in fixation and convenient and simple operational program, and is a multifunctional external fixation support that can fulfill fixation and pressurization and also can realize malformation correction or lengthening of bones.

The invention discloses an external fixator for pelvic fracture, which comprises: a screw; and two sleeves both slidably mounted on the screw in sleeving manner, wherein both ends of each sleeve are fixed through nuts matched with the screws, a first connecting rod is fixedly connected to the outer wall of one sleeve vertically, a first rotating part being arranged at the tail end of the first connecting rod, the first rotating part rotates and is fixed around a central axis parallel to the screw, a bone spicule is detachably and fixedly connected to the tail end of the first rotating part andis perpendicular to the screw, a second connecting rod is fixedly connected to the outer wall of the other sleeve vertically, a second rotating part is arranged at the tail end of the second connecting rod, the second rotating part rotates and is fixed around a central axis parallel to the screw, and a bone spicule is detachably and fixedly connected to the tail end of the second rotating part. The fixator with the same specification is widely applicable and convenient to operate.

The invention discloses a diabetic foot treatment device. The diabetic foot treatment device comprises at least two first elastic supports, at least one supporting rod and at least two magnetic control telescopic rods; at least two deformable frames are formed in the device, and the supporting rod has a supporting effect on the deformable frames; and according to the device, extension and contraction of the magnetic control telescopic rods are regulated by a magnetic field, and thus the deformable frames deform, so that periostea are stretched, and vascular repair is promoted. The device is simple in structure, is implanted into the human body as a whole during use, and is regulated from outside the body, infection can be effectively prevented, a precise adjustment function can be achievedat the same time, moreover, the device can be provided with bone needles, and thus participation of bone marrow in vascular repair and remodeling is further achieved, so that treatment and recovery of diabetic feet are facilitated.

The invention belongs to the field of medical auxiliary equipment, which applies a medical spicule, a gyroscope real-time monitoring sensor and main control equipment. The method comprises the following steps that: firstly, a gyroscope suspended by the bone needle of the standard reference surface monitors the sensor in real time to obtain the space standard plane (cross section) required for measurement; then a medical bone needle is respectively placed at the relatively constant positions of the near end and the far end of the fracture; the absolute angle of each medical bone needle to thatground in the standard plane is measured by the gyroscope real-time monitor sensor; and a spatial relative rotation angle between the near end and the far end of the bone is calculated. The measuringsystem is concise in equipment, is easily operated by a single person, is low in manufacturing cost, is suitable for a narrow site, acquires real-time accurate data wirelessly, monitors the rotating alignment condition of the bone setting operation in an assisted mode in real time, requires no large medical equipment or professional teams, greatly saves the medical cost, also requires no X-ray fluoroscopy or CT scanning before or during the operation, causes no extra body injuries, and facilitates medical units of all levels to carry out the technology.