54 results about "Olecranon" patented technology

A system for the internal fixation of a fractured bone of an elbow joint of a patient includes at least one bone plate, each bone plate having a plurality of holes and generally configured to fit an anatomical surface of the fractured bone. The at least one plate is adapted to be customized to the shape of a patient's bone. The system also includes a plurality of fasteners including at least one locking fastener for attaching the bone plate to the bone. At least one of the holes is a threaded hole. Guides for plate benders, drills, and / or K-wires can be pre-assembled to the threaded holes, and the locking fastener can lock into any of the threaded holes after the guides are removed.

A bone plating system comprising: a plate, where the plate is low-profile and capable of contouring to a bone; a variable number of screw holes, locking or non-locking; at least one channel or tunnel through the plate; and at least one flexible device passing through the channel or tunnel and passing through soft tissue attached to the bone. The low profile plate, in combination with the flexible device passing through the surrounding soft tissue, functions as a tension band and acts to neutralize the muscle forces tending to pull the bone apart at a fracture. The low profile tension band plating system is targeted for periarticular tensile fractures for repair of patella, olecranon, greater trochanter, greater tuberosity, radial styloid, lateral or medial malleoli, or lateral malleolus.

An osteosynthesis device is provided, which, while being a single device, is wide in a range of fixing positions or fixing methods that can be selected in a repositioning operation, enables firm fixation of an affected portion, and alleviates feeling of discomfort felt at the affected portion after the operation.An osteosynthesis device D1 is a device used, in case of fracture of an olecranon side of an ulna, to fix and reposition respective bone fragments and includes an intramedullary nail 1 inserted into the ulna 3, an end plate 2a mounted on an outer surface of the ulna at the olecranon 31 side, and a threaded screw N1 arranged to screw on the end plate to the intramedullary nail. Screws S are used in combination with the osteosynthesis device D1 to fix, etc., the inserted intramedullary nail 1 onto the ulna 3. The intramedullary nail 1, which is a round rod body having a tapering tip end portion and has a thickness enabling entry into the marrow of the ulna and a predetermined length, includes a threaded hole 111 formed in a base end surface 101, long holes 114 and 115 formed at a base end side with respect to a central portion of a circumferential surface 102, and circular holes 112, 113, 116, 117, and 118 formed at predetermined parts between a tip portion side and the base end side of the circumferential surface 102.

Belonging to agricultural machinery, the invention relates to a mixed higher-order deformed elliptical gear planetary pot seedling transplanter seedling separation mechanism, which mixes two pairs of deformed oval gear pairs and two pairs of deformed elliptical gear pairs to serve as a variable speed transmission mechanism. Specifically, a sun gear and two middle gears engaged with it are deformed oval gears, and the rest are all deformed elliptical gears, two parallel middle wheels are respectively positioned on middle wheel shafts, which are parallel with a central driving shaft and planet wheel shafts, but these shafts are not in one plane; planting arms are fixedly installed to the planet wheel shafts perpendicularly; a seedling separation housing is perpendicularly mounted at the outer ends of the planet wheel shafts, and the seedling separation housing is equipped with a seedling fetching rod, a seedling pushing rod, a shifting fork, a pressure spring, a cam and spring steel sheet seedling needles. The mechanism of the invention realizes a seedling fetch curvilinear motion of the needle point in a static track which is seal shaped and has an olecranon-like projection, and has the characteristics of simple and novel structure, small volume, light weight, small vibration, high work efficiency and good operation quality.

A bone plating system comprising: a plate, where the plate is low-profile and capable of contouring to a bone; a variable number of screw holes, locking or non-locking; at least one channel or tunnel through the plate; and at least one flexible device passing through the channel or tunnel and passing through soft tissue attached to the bone. The low profile plate, in combination with the flexible device passing through the surrounding soft tissue, functions as a tension band and acts to neutralize the muscle forces tending to pull the bone apart at a fracture. The low profile tension band plating system is targeted for periarticular tensile fractures for repair of patella, olecranon, greater trochanter, greater tuberosity, radial styloid, lateral or medial malleoli, or lateral malleolus.

The method and apparatus for external fixation of bone fractures provides for external fixation of bone fractures, especially fractures of the patella and the olecranon. An apparatus for external fixation of bone fractures comprises a support member, and a pair of tensioning assemblies disposed along the support member. A first tensioning assembly is connected to the first end of the support member, and a second tensioning assembly is slidably disposed along the support member. Filaments, attached to and extending between the first and second tensioning assemblies, may be tensioned by moving the second tensioning assembly along the support member away from the first tensioning assembly. Filaments, such as Kirschner wires, are inserted through bone fragments on opposite sides of a fracture. The filaments are tensioned by moving the tensioning assemblies apart. Tension applied to the filaments draws the filaments together, compressing the bone fragments together at the fracture.

Provided is a bone plate for the olecranon of the proximal ulna using a combination of screws and K wires. The plate is curved to fit the shape of the olecranon and is screwed in place. The plate has a locking section located in the curved section. A fastener is pushed over the ends of the K wires and locks in to the locking section of the plate. The fastener has a tapered wedge that secures the K wires allowing fixation to the plate and resists their withdrawal. A femoral stem cap is used during hip replacement surgery and protects the Morse taper of the femoral stem once the ball of the hip joint is removed. The femoral stem cap has an air vent to allow air to pass when being applied and removed.

The invention discloses a multifunctional thermocoagulation therapeutic instrument of gynecologic disease, which consists of physical generator 10 and metal guide bar 1, wherein the surface of metal guide bar 1 adsorbs the insulating layer 9 with the insulating crank 2 connecting the end of metal guide bar 1; the guide line 7 pierces the hollow insulating crank 2, whose one end connects the metal guide bar 1 and the other end connects the physical generator 10; the top of metal guide bar 1 connects the olecranon-shaped end 3; the insulating layer 8 is set on the connection part of end 3 and metal guide bar 1.

A bone fixation device includes a rod including a first portion extending from a proximal side of the rod, and a second portion extending from the first portion, wherein the rod is inserted into a medullary canal of an ulna bone, the first portion includes a plurality of longitudinally displaced screw holes, having axes whereby at least two screws inserted into the screw boles extend in discrete directions into a metaphyseal portion of the ulna. The bone fixation device also includes a curved extension portion extending from the proximal side of the rod to capture an olecranon of the ulna. The device provides the benefits of an intramedullary nail and proximal tension band type fixation in a single device. The fixation device permits a minimally invasive treatment of proximal ulna fractures that may otherwise be under treated.

The invention discloses an olecroanon locking proximal humerus plate, which is an integrated plate with a head part and a body part, wherein the head part comprises a face part and a vertex part, and the face part and the vertex part are bended into an angle of 104-115 degrees; the head part is provided with a group of locking holes; the body part is provided with a group of locking holes and pressurizing holes; an angle of inclination of the lower section and the upper section of the body part is 5-9 degrees; the vertex part of the head part is provided with a first locking hole and a second locking hole; a nape is arranged between the first locking hole and the second locking hole; the face part of the head part is provided with a group of thread locking holes and a group of small holes for temporary fixing; and the tail end of the body part is provided with 1-3 holes for temporary fixing. The locking plate can treat olecranal fracture and at the same time complicate fracture shaft ulna, has good olecroanon attach performance with human body, no need of shaping during clinical practice, is convenient for operation, has good stability, and can improve the treatment effect.

The invention relates to the technical field of famous high-quality tea picking, in particular to an olecranon type pneumatic picking mechanism for famous high-quality tea. The olecranon type pneumatic picking mechanism comprises a base, a clamping mechanism and a shearing mechanism. A base platform is fixedly connected with a fixed rotary shaft, a fixed clip and an auxiliary spring, the left sideof the base is movably connected with an air cylinder, and the air cylinder firstly pushes a movable rod and a movable clip around the fixed shaft to achieve the clamping, shearing and leaf-stalk separation motion of the picking mechanism. The clamping mechanism comprises the fixed clip and the movable clip, and the shearing mechanism comprises a left blade and a right blade. The right blade andthe left blade are oppositely arranged and movably connected, a torsional spring is arranged at the joint and abuts against the blade surface of the left blade and the blade surface of the right blade, glued rubber sheets are fixed to the movable clip and the fixed clip, and a tea outlet is formed in the base. According to the olecranon type pneumatic picking mechanism, the manual picking action and the mechanical picking action are combined, the scheme is reasonable and feasible, and the advantages of being simple in structure, precise in picking, high in work efficiency, low in cost and thelike are achieved.

Provided is a bone plate for the olecranon of the proximal ulna using a combination of screws and K wires. The plate is curved to fit the shape of the olecranon and is screwed in place. The plate has a locking section located in the curved section. A fastener is pushed over the ends of the K wires and locks in to the locking section of the plate. The fastener has a tapered wedge that secures the K wires and resists their withdrawal. A femoral stem cap is used during hip replacement surgery and protects the Morse taper of the femoral stein once the ball of the hip joint is removed. The femoral stem cap has an air vent to allow air to pass when being applied and removed.

A bone fixation device includes a rod including a first portion extending from a proximal side of the rod, and a second portion extending from the first portion, wherein the rod is inserted into a medullary canal of an ulna bone, the first portion includes a plurality of longitudinally displaced screw holes, having axes whereby at least two screws inserted into the screw holes extend in discrete directions into a metaphyseal portion of the ulna. The bone fixation device also includes a curved extension portion extending from the proximal side of the rod to capture an olecranon of the ulna. The device provides the benefits of an intramedullary nail and proximal tension band type fixation in a single device. The fixation device permits a minimally invasive treatment of proximal ulna fractures that may otherwise be under treated.

The present invention relates to a nail system for fixation of an olecranon osteotomy or fracture. The nail system of the present invention is securely held in place in the intramedullary canal to ensure proper anatomic reduction of an osteotomy. Further, the invention provides an insertion device and a method for inserting the osteotomy nail system, securing the osteotomy nail system, and fixing the osteotomy.

The invention discloses a pair of rongeurs with rongeur heads replaceable. The pair of rongeurs comprises upper supports and lower supports, wherein a rotary shaft is arranged between the upper supports and the lower supports, a spring sheet is arranged between the lower supports, and a handheld handle and a free handle are arranged between the upper supports. First pulleys are symmetrically arranged on the two sides of the handheld handle, second pulleys and third pulleys are symmetrically arranged at the upper ends and the lower ends of the two sides of the upper supports, and one end of the free handle is connected with a pull wire which sequentially passes by the first pulleys, the second pulleys and the third pulley, penetrates through the spring sheet and intersects to be fixed to the lower supports. Rongeur connection heads are arranged at the ends of the lower supports far away from the handheld handle and connected with double-joint rongeur heads or vertebral plate rongeur heads or olecranon rongeur heads. The rongeur connection heads are provided with threads and are in threaded connection with the double-joint rongeur heads or the vertebral plate rongeur heads or the olecranon rongeur heads. The pair of rongeurs with the rongeur heads replaceable has the advantages of being convenient to use and controllable in strength, and the rongeur heads are replaceable.

The invention relates to the technical field of medical instruments, and provides a customized ulna prosthesis, which comprises a prosthesis body, an olecranon groove is formed in the upper end of theprosthesis body, and a broach is arranged at the lower end of the prosthesis body; the prosthesis body is further provided with a plurality of suture holes determined according to human ligament attachment points, wherein the suture holes are located between the olecranon groove and the broach; and bone trabecula structures are unevenly arranged in a non-suture-hole area on the surface of the prosthesis body. The ulna prosthesis has the beneficial effects that the articular surface of the ulna prosthesis is smooth, and particularly the olecranon groove is polished, so that the abrasion between the ulna prosthesis and the elbow articular surface of a human body is reduced, and the service life of the prosthesis is prolonged; the plurality of suture holes in the ulna prosthesis act together, so that the early-stage stability of the ulna prosthesis in the human body is guaranteed; and the trabecula structures in the ulna prosthesis can reduce the overall weight of the ulna prosthesis, sothat the bone attachment and bone ingrowth capacity is improved.

The invention discloses an olecranon type urethral dilator with an openable sheath. The olecranon type urethral dilator comprises a dilator body, a high-pressure ball capsule and the openable sheath. The upper end of the dilator body is provided with a finger pulp groove. The lower end of the dilator body is provided with an olecranon type bend. A guide-in hole penetrating through the two ends of the dilator body is formed in the dilator body. The high-pressure ball capsule is arranged on the dilator body and located on the upper portion of the olecranon type bend. The included angle between the tangential direction of the olecranon type bend and the length direction of the dilator body is 30-45 degrees. The openable sheath is arranged outside the dilator body. The olecranon type urethral dilator is provided with the openable sheath, the dilator body can be guided by a guide wire in the guide-in hole in the dilator body when placed in, the openable sheath can be placed into the bladder under the guide of the dilator body after the urethra is sequentially dilated, and a catheter is easily guided into the bladder. Operation is easy and convenient, hemorrhage during operation, injuries and other complications can be reduced, and urethral stricture surgery treatment difficulty and errors are reduced.

The invention discloses a manufacturing method of a pad-pasting-type anatomic-design ulna olecranon bone fracture plate. The method comprises the steps of S1, building a ulna olecranon three-dimensional data model; S2, conducting appearance design on the ulna olecranon bone fracture plate according to a bone surface of the ulna olecranon three-dimensional data model, forming a ulna olecranon bone fracture plate data model fitting with a bone surface of the ulna olecranon, and designing a hole tacking structure; S3, manufacturing the ulna olecranon bone fracture plate according to the ulna olecranon bone fracture plate data model; S4, conducting amendment on the manufactured ulna olecranon bone fracture plate. According to the manufacturing method of the pad-pasting-type anatomic-design ulna olecranon bone fracture plate, the appearance of the ulna olecranon bone fracture plate is designed in a fitting mode according to the bone surface of the ulna olecranon three-dimensional data model, accordingly it is ensured that the ulna olecranon bone fracture plate and the bone surface of the ulna olecranon are well fitted, further, the good clinical fixing effect can be achieved, the difficulty of clinical treatment is reduced, and the recovery after an operation is ensured.

An elbow brace utilizes a pair of shock-absorbing elements that are placed over the arm over the lateral and medial epicondyle of the humerus bone. These elements provide a medium for absorbing a portion of the shock energy and vibration that can travel along the forearm and exit the elbow of a person during physical activity. Pressure transmitting elements are designate to localize pressure directly on the tendon that extends from the extensor digitorum muscle and is attached to the humerus. The other pressure transmitting element is placed over the tendon of the triceps brachii which is attached to the olecranon of the ulna. A positioning strap provides quick and easy ability to align the components on the arm of the wearer. Additional pressure generating straps help to generate focused pressure to the tendons and helps to maintain the brace on the arm of the wearer.

The invention discloses a pressurized intramedullary expanding interlocking screw. The pressurized intramedullary expanding interlocking screw comprises a main intramedullary screw, an inward-expanding screw, a pressurized set screw and an arc tail end screw plate. A hollow hole is formed in a main rod of the main intramedullary screw, the near end of the main intramedullary screw is provided with an axial inner hole connected with the pressurized set screw through threads, the far end of the main intramedullary screw is provided with a set of petal type wing-shaped sheets which can be driven by the inner supporting force to open outwards, and at least two tip blades are arranged on the outer side of each wing-shaped sheet; the inward-expanding screw is screwed down to stretch the wing-shaped sheets at the far end of the main intramedullary screw. The pressurized set screw can be screwed into the axial inner hole in the near end of the main intramedullary screw, and a screw cap is arranged at the tail of the pressurized set screw, and the whole length of the pressurized intramedullary expanding interlocking screw can be shortened and prolonged by screwing in and out the pressured set screw. The arc tail end screw plate is provided with an opening hole where the pressurized set screw can penetrate, and is abutted to an acted body through the screw cap at the tail of the screwed pressured sleeve screw. According to the pressurized intramedullary expanding interlocking screw, the mini-invasive surgical treatment can be achieved for an olecranal fracture and a fibula external ankle fracture, and the functions of elbow joints and ankle joints can be recovered early.

The invention discloses a lever positioning technique treatment adjusting device which comprises a base and a side board. The side board is connected with a top board capable of rotating around the side board, a pushing rod is arranged between the base and the top board, one end of the pushing rod is movably connected to the base, and the other end of the pushing rod is movably connected to the top board. When the lever positioning technique treatment adjusting device is used, a patient lies on a bed in a bending-over mode, the pushing rod of the treatment adjusting device moves down and drives the top board to move down, then the patient puts the two knees on the top board, an upward-moving switch is started, a motor drives the pushing rod to move upward, and the top board moves upward to drive the two legs to move upward, namely, force is applied to lift the two ankles in the rear and upward directions; when the ankles are lifted into place, the motor is shut down, the top board is positioned, the olecranon of the right elbow of a doctor is acted on the ill lumbar spine of the patient, the doctor conducts rapid wrenching on the ill lumbar spine with smart punching force, and therefore the whole process is finished. The operation treatment process can be accomplished by only one doctor, and the doctor can control the lifting of the top board on his own to coordinate the wrenching process, and the treatment effect is better.

The invention discloses an internally implanted anatomical elbow joint stabilizer. The internally implanted anatomical elbow joint stabilizer comprises a transverse rod placed in the rotating axis ofa capitulum humerus to serve as a humerus rotating shaft, a fixing plate fixed to ulna olecranon through screws, and a connecting rod connecting the transverse rod with the fixing plate, spacing is formed between the connecting rod and an ulna, between the connecting rod and a radius as well as between the connecting rod and a humerus, the spacing enables the connecting rod not to interfere with the ulna, the radius and the humerus during bending and stretching movement, and the transverse rod, the connecting rod, the fixing plate and the screws are all made of degradable implanting materials.According to the internally implanted anatomical elbow joint stabilizer, after an operation, bending and stretching movement can be achieved, the stability of an elbow joint can be maintained under bending and stretching movement, the appearance of the elbow and clothes wearing are not affected after the operation, stent-tract infection is avoided, the risks of wound infection and skin necrosis are reduced, and a secondary operation for taking out the stabilizer is not needed.

The invention relates to a trainer for a forearm to rotate forwards and backwards. The trainer comprises a hand sleeve tool, an arm sleeve tool, a rotating support and a treatment component, wherein the hand sleeve tool comprises a wrist sleeve tool (4) and an elbow supporting plate (5); the arm sleeve tool comprises an arm protecting plate (1); the rotating support is an L-shaped support and consists of a first support (2) and a second support (3) which are hinged with each other; the treatment component comprises a treatment knob (6), a push rod (7) and a wrist fixture (8), and the treatment knob (6) is positioned at the top end of the push rod (7); and the wrist fixture (8) acts on the push rod (7) through the treatment knob (6) to control the degree of tightness. The trainer is simple in structure and convenient to use, has a good effect on treating elbow fracture, radial head fracture, wrist olecranal fracture, postoperative muscle tendon or ligament repair, burn and the like, and can meet requirements for high speed, safety and efficiency of therapeutic devices by patients.

The invention relates to an ulna olecranon morphological anatomy locking method and a steel plate structure. The ulna olecranon morphological anatomy locking method comprises the following steps: cutting an ulna body and skin corresponding to olecranon; stripping muscle fascia covering the surfaces of the ulna body and the olecranon and exposing a fracture end and a fracture block; cleaning bloodclots at the fracture end, resetting the fracture block and temporarily fixing the fracture block; observing the reduction condition of the fracture block, placing a locking steel plate II at rear ends of the ulna body and the olecranon, and placing a locking steel plate I at front ends of the ulna body and the olecranon; washing the wound, and confirming the reduction and fixation conditions of the fracture block again; suturing the wound after reduction and fixation of the fracture block meet the requirements. By means of the method, the fracture block can be well fixed, and the arrangementdirection of locking nails and / or leather nails does not point to the concave joint surface and do not enter the joint, so that good safety is achieved.

The invention discloses a pruning tool of plants. The pruning tool comprises a shear mechanism, a pull cord, a pull cord taut piece, a control part and a telescopic hollow rod, the shear mechanism is situated on the top end of the telescopic hollow rod, the control part is situated on the bottom end of the telescopic hollow rod, the pull cord taut piece is situated on the top end of the telescopic hollow rod, the pull cord passing through the telescopic hollow rod is connected fixedly with the shear mechanism by the pull cord taut piece, the shear mechanism comprises an olecranon shear, a return spring and a scissor junction part, wherein the olecranon shear handle is provided with a first handle and a second shear handle, the return spring is situated between the first shear handle and the second shear handle. By the structure of the pruning tool of plants, the pull cord is placed in the telescopic hollow rod, the pull cord is keep at the shortest by the pull cord taut piece when pruning is conducted at an arbitrary height, the emergence of slackness of pull cords in the prior art is prevented, even in windy situations the pull cords cannot be hitched by plants. The pruning tool has the advantages that the tool is easy to use and easy to carry, work efficiency is increased, and costs are cut down.

The invention discloses multifunctional stitch scissors for gynecological clinical use. The stitch scissors comprise a first scissor blade and a second scissor blade. The ends of the first scissor blade and the second scissor blade are respectively and fixedly connected with a first scissor arm and a second scissor arm. The first scissor arm and the second scissor arm are hinged by a pin shaft. The end of the first scissor blade is provided with an olecranon hook, and the ends of the first scissor arm and the second scissor arm are fixedly connected with an adjusting rod respectively. The endsof the two adjusting rods are fixedly connected with finger rings through connecting blocks. Connecting rods penetrate the finger rings and are in sliding connection with the finger rings. The top ends of the connecting rods are fixedly connected with top plates. A second spring is abutted at the center of the bottom of each top plate, and the other end of the second spring is fixedly connected with the corresponding finger ring. The bottom end of each connecting rod is fixedly connected with a clamping plate, and the clamping plate is provided with an arc-shaped through groove. By means of the olecranon hook, stitches can be taken out conveniently. At the same time, the adjusting rods are arranged to adjust the size of the scissors and facilitate stitch taking out at different positions.The clamping plates are arranged to prevent the scissors from falling off.

The invention discloses a pressurized intramedullary expanding interlocking screw. The pressurized intramedullary expanding interlocking screw comprises a main intramedullary screw, an inward-expanding screw, a pressurized set screw and an arc tail end screw plate. A hollow hole is formed in a main rod of the main intramedullary screw, the near end of the main intramedullary screw is provided with an axial inner hole connected with the pressurized set screw through threads, the far end of the main intramedullary screw is provided with a set of petal type wing-shaped sheets which can be driven by the inner supporting force to open outwards, and at least two tip blades are arranged on the outer side of each wing-shaped sheet; the inward-expanding screw is screwed down to stretch the wing-shaped sheets at the far end of the main intramedullary screw. The pressurized set screw can be screwed into the axial inner hole in the near end of the main intramedullary screw, and a screw cap is arranged at the tail of the pressurized set screw, and the whole length of the pressurized intramedullary expanding interlocking screw can be shortened and prolonged by screwing in and out the pressured set screw. The arc tail end screw plate is provided with an opening hole where the pressurized set screw can penetrate, and is abutted to an acted body through the screw cap at the tail of the screwed pressured sleeve screw. According to the pressurized intramedullary expanding interlocking screw, the mini-invasive surgical treatment can be achieved for an olecranal fracture and a fibula external ankle fracture, and the functions of elbow joints and ankle joints can be recovered early.

The invention relates to the technical field of door and window templates, and in particular to a window tongue-and-groove template with an olecranon water drip and a construction method of the windowtongue-and-groove template. A lower die plate, a left side template, a right side template, an upper template, an upper left internal corner template, an upper right internal corner template, a lowerleft internal corner template and a lower right internal corner template are arranged and connected to form a rectangular frame-shaped structure fixed to a window; due to the fact that the outer sidesurfaces of the components are all in a step shape, a window tongue-and-groove is formed in the outer side of the window through pouring; when a window frame is installed at the window, rainwater canbe blocked by a flange on the inner side of the window tongue-and-groove, and therefore the waterproof performance of the window frame is improved. The groove is formed in the outer side of the upperportion of the upper template, the olecranon water drip is formed on the outer side of the upper edge of the window obtained after pouring is completed; the olecranon water drip and the window tongue-and-groove are formed through one-time pouring, and compared with the mode that in the prior art, the olecranon water drip needs to be machined respectively with the window tongue-and-groove, the machining efficiency is greatly improved.

The present invention relates to a nail system for fixation of an olecranon osteotomy or fracture. The nail system of the present invention is securely held in place in the intramedullary canal to ensure proper anatomic reduction of an osteotomy. Further, the invention provides an insertion device and a method for inserting the osteotomy nail system, securing the osteotomy nail system, and fixing the osteotomy.

The invention relates to an automatic / manual dual-mode and straight-rib sun-rain umbrella. A main umbrella rib of the invention comprises a hollow umbrella rib and a movable umbrella rib and is driven by a control component arranged at a handle to lift, wherein the hollow umbrella rib is fixedly arranged on the handle, the upper end of the hollow umbrella rib is connected with a divergence type umbrella rib, the lower end of the hollow umbrella rib is provided with a gap, a gear cluster is arranged in the gap and is connected with the control component; the movable umbrella rib is sleeved outside the hollow umbrella rib in a rotating way, the upper end of the movable umbrella rib is provided with a spiral groove with a bayonet at the head and the tail thereof, the inner wall of the lower end of the movable umbrella rib is provided with an annular internal tooth groove in the position corresponding to the gear cluster, the internal tooth groove is engaged with the gear cluster and drive the movable umbrella rib to rotate; the outer wall of the lower end of the movable umbrella rib is also provided with an annular manual spiral sleeve; an umbrella unfolding / folding loop is arranged outside the spiral groove and is provided with an olecranon part which can slide in the spiral groove, and a movable joint which is arranged on the umbrella unfolding / folding loop is connected with a divergence type umbrella rib frame which is used for supporting an umbrella cover. The invention has the advantages of convenient operation and simple structure, and increases the adaptability of the umbrella.