9 results about "Humerus Head" patented technology

Provided is a combined guidance for reaming and cutting, including: a reamer guidance configured to guide reaming of a humerus; a first humeral guidance press-fitted with the reamer guidance and having a surface tailored to a humerus head; a second humeral guidance having a surface tailored to an intertubercular groove of the humerus head; and a cutting guidance mutually coupled to the reamer guidance, the first humeral guidance, and the second humeral guidance.

The utility model discloses an efficient positioning type shoulder joint wear test tool, which particularly relates to the shoulder joint wear test field and comprises a box body, a support plate is arranged at the bottom of an inner cavity of the box body, an insertion rod is inserted in the middle of the support plate, two ends of the insertion rod are fixedly connected with a balloon and a toothed plate respectively, and an angle adjusting mechanism is arranged at the bottom of the toothed plate. Limiting blocks are symmetrically arranged on the upper and lower sides of the two ends of the supporting plate. The controller controls the first electric push rod to be started to sequentially adjust the orientation and the position of the balloon, meanwhile, the controller controls the third electric push rod to be started to sequentially adjust the position of the humerus head prosthesis, and therefore the humerus head prosthesis is located over the balloon all the time through detection of the displacement sensor, the efficient positioning effect is achieved, and the positioning accuracy is improved. The positioning and mounting efficiency is improved, the testing efficiency is improved, the humerus head prosthesis can be sequentially controlled to rotate through a starting motor and a second electric push rod, extrusion testing is conducted on the balloon, and the using effect is improved.

The utility model relates to a PET (Polyethylene Terephthalate) patch for an inner support of a shoulder joint. The PET patch for the inner support of the shoulder joint is formed by weaving PET materials. The shoulder joint inner support PET patch comprises a fixing section and a traction section which are oppositely arranged, the traction section comprises two traction holes which are formed in a spaced mode, and reinforcing wires are woven on the hole edge of each traction hole. The shoulder joint inner support PET patch is formed by weaving PET materials, has the effects of being high in strength and not prone to dissolution, and can stably connect the humerus head and the glenoid cavity. The patch is provided with the traction hole positions at fixed intervals and the open type fixing section positions, so that perforation or threading can be performed on the fixing section according to the specification and the size of a use object to realize unified distribution, and the convenience of an operation is improved. Reinforcing wires are woven on the edges of the traction holes to improve the strength of the traction holes, pull cracks are avoided, and the traction success rate is increased.

The utility model relates to the technical field of orthopedic medical instruments, in particular to a surface replacement instrument device for acromion impact after huge rotator cuff injury, which can eliminate acromion lower impact when a humerus head moves and is beneficial to recovery after the rotator cuff injury. The humerus prosthesis comprises a metal hemispherical prosthesis fixed to the top of a humerus and a metal strip-shaped prosthesis fixed to the end of an acromion, a clamping groove is formed in the lower portion of the metal strip-shaped prosthesis, a ceramic prosthesis is embedded in the clamping groove, and the bottom of the ceramic prosthesis is a spherical surface matched with the metal hemispherical prosthesis.

A system with a processing unit for processing X-ray images may be utilized for assisting in humerus surgery based on X-ray images. Firstly, at least two X-ray images are received having been generated with different imaging directions and showing a proximal portion of a humerus. Then, (i) the X-ray images are registered, (ii) an approximation of at least a part of the 2D outline of the humerus head in both images is determined, (iii) a 3D approximation of the humerus head based on the approximated 2D outlines and the registered images is determined, and (iv) 2D image coordinates of a total of at least three different points in the X-ray images are determined. Finally, an approximation of an anatomical neck is determined as a curve on the 3D approximation of the humerus head based on the at least three determined points.

The invention discloses a laser measuring system for shoulder-brachial three-dimensional data, which comprises a horizontal support rod, a fixing device arranged at one end of the support rod and used for fixing the support rod in front of the chest of a subject, and a laser ranging and angle measuring device arranged at the other end of the support rod, and the master control device is arranged on the outer side of the laser distance measuring and angle measuring device, is connected with the laser distance measuring and angle measuring device and is provided with a key and a display screen. The invention further provides a laser measurement method of the shoulder-humeral three-dimensional data, and the laser measurement system is adopted to carry out laser measurement of the shoulder-humeral three-dimensional data. The shoulder and humeral three-dimensional data can be measured and displayed, auxiliary analysis and judgment of up-and-down and front-and-back position changes and inward movement of the shoulder blade are facilitated, auxiliary analysis and judgment of up-and-down and front-and-back position changes and inward movement of the humerus head are facilitated, and auxiliary analysis and judgment of comprehensive up-and-down and front-and-back position changes and inward movement of the shoulder blade and the humerus are facilitated.

The utility model relates to the technical field of medical instruments, and discloses a 3D printing humerus prosthesis retaining a shoulder joint, which comprises a prosthesis body, the proximal end of the prosthesis body is used for being connected with the humerus head of the shoulder joint, the proximal end of the prosthesis body is in a bulb shape, the top of the proximal end of the prosthesis body is provided with a connecting area, and the connecting area is provided with a plurality of nail-shaped protrusions; a through nail hole is further formed in the near end of the prosthesis body, and the nail hole is perpendicular to the connecting area. The near end of the prosthesis body is in the ball head shape, is provided with the connecting area and is connected with the humerus head of the shoulder joint, the shoulder joint can be reserved, the natural movement range and functions of a patient can be maintained, damage to surrounding tissue is reduced, recovery of more natural movement and daily activities is facilitated, and postoperative functions are improved; the contact area of the bulb-shaped connection is large, and the nail-shaped bulge structure is arranged in the near-end connection area of the prosthesis body, so that the contact area can be further increased, and the connection is more stable; and the initial and long-term stability of prosthesis implantation is facilitated.

The invention relates to a steel plate capable of fixing large and small nodules for shoulder joint half-shoulder replacement, which comprises a head part at the near end and a trunk part at the far end, and the head part and the trunk part are integrally arranged; the inner surfaces of the head part and the trunk part are arc-shaped curved surfaces which are tightly attached to the outer surface of the humerus of a human body; a plurality of combination holes are distributed in the length direction of the stem part, and a plurality of first screw holes which are distributed dispersedly are formed in the head part; an insertion sheet is arranged at the near end of the head part; a shaping plate is further connected to the side edge of the head and extends to the small tubercle of the humerus head, a locking plate is arranged at the end of the shaping plate, the locking plate is of an anatomical structure matched with the physiological appearance of the small tubercle of the humerus head, and a second screw hole is formed in the locking plate. The device is suitable for a shoulder joint half-shoulder replacement operation, is matched with a shoulder joint prosthesis for use, can solve the problem of fixation of large and small tubercle fracture blocks, effectively improves the firmness and stability of connection with a human humerus, and avoids a secondary operation caused by incapability of fixation or internal fixation failure of a pure conventional bone fracture plate, a screw or an intramedullary nail.

The modular positive and negative shoulder and shoulder joint replacement prosthesis comprises a humerus handle prosthesis, a humerus handle near-end prosthesis is detachably arranged at the end of the humerus handle prosthesis, and a base is arranged at the end, away from the humerus handle prosthesis, of the humerus handle near-end prosthesis. A humerus head prosthesis and a middle piece are connected between the humerus handle near-end prosthesis and the base, concave-convex structures matched with each other are arranged on the humerus head prosthesis and the middle piece, and the humerus head prosthesis is arranged to be attached to the middle piece; the base is connected with the shoulder blade through a bone screw, and the humerus handle prosthesis is installed in the humerus in an inserted mode. According to the shoulder joint prosthesis, the load of a traditional shoulder joint prosthesis on a human body joint is relieved, various shoulder joint disease replacement surgery schemes are provided, the surgery operation process is simplified in the surgery, the operation of repeated model testing in the surgery is avoided, the shoulder joint structure of a patient can be adapted through modular design, and the practicability is high. And the application of half-shoulder replacement can be implemented on the basis of full-shoulder replacement.