82 results about "Rotator cuff" patented technology

The invention belongs to the technical field of biomedical engineering, and particularly relates to a biological rotator cuff patch with a double-gradient structure and a preparation method of the biological rotator cuff patch. The preparation method comprises the following steps: carrying out electrostatic spinning on a spinning solution, controlling the rotating speed of a receiving roller to increase at a constant speed in the electrostatic spinning process, and obtaining a nanofiber membrane after electrostatic spinning; l-polylactic acid and D-polylactic acid are simultaneously dissolved in the spinning solution; the minimum value of the rotating speed of the receiving roller is 100-500 rpm, and the maximum value of the rotating speed of the receiving roller is 3000-4000 rpm. The finally prepared biological rotator cuff patch with the double-gradient structure presents an orientation degree gradient and a piezoelectric effect gradient at the same time on the thickness scale, and has mechanical supporting capacity and biocompatibility, and bionic healing promotion of the patch with the gradient structure is achieved.

The invention belongs to the technical field of medical materials, and relates to a preparation method of an integrated gradual change type bionic gradient structure rotator cuff patch. The integrated gradual change type bionic gradient structure rotator cuff patch is prepared through the electric auxiliary solution blowing spinning technology and the heat treatment nanoimprint technology, the patch is of a composite layer structure, each transition layer and the adjacent micro-nano fiber membrane layer form a continuous fracture-free structure, the internal structure and component change are in uniform transition, discrete layering is avoided, and the patch has good application prospects. The whole patch is of a continuous gradual change type biological bionic gradient structure, histological gradient characteristics of a tendon-bone transition area are successfully simulated, and rapid healing of a tendon-bone interface can be effectively promoted.

The invention relates to the technical field of sports medicine auxiliary diagnosis, in particular to a rotator cuff tearing recovery evaluation method and system. By combining multiple groups of indexes and image group feature data, the rotator cuff tearing recovery process can be effectively evaluated, score data reflecting the current rotator cuff repair postoperative development state can be obtained, and the postoperative recovery degree and potential risks are more visually determined through the score data. Therefore, automatic evaluation and prediction of the repair process are realized.

The invention relates to the technical field of clinical medicine, and discloses an intertrochanteric fracture postoperative progressive rehabilitation system, which comprises an intertrochanteric fracture comprehensive data acquisition module, a dynamic data monitoring module, a rehabilitation scheme generation module, a rehabilitation execution module, a rehabilitation mode adjustment module, a diet structure adjustment module and a rehabilitation interaction feedback module, the intertrochanteric fracture comprehensive data acquisition module is responsible for acquiring static and semi-dynamic data of a rehabilitation full cycle, the dynamic data monitoring module monitors physiological and motion change data of a patient in daily activities in real time, the rehabilitation scheme generation module generates a personalized stage rehabilitation scheme, and the rehabilitation execution module executes a full-process rehabilitation action. The rehabilitation mode adjusting module is used for adjusting a rehabilitation exercise mode, the diet structure adjusting module is used for optimizing a diet structure, and the rehabilitation interaction feedback module is used for collecting feedback so as to correct the scheme.

The present application relates to a kind of composite rotator cuff patch and its preparation method and application, belong to the field of biomaterials technology.The structure layer and biological layer are all biological medical materials, do not need to introduce crosslinking agent, and by the structure layer and biological layer alternate composite design, avoid the problem that traditional synthetic material is not degradable or short degradation period, with controllable degradation period, improve the tear resistance and mechanical support of patch, effectively reduce the risk of inflammatory response, improve the biocompatibility and safety of patch, finally realize the applicability and effect of improving composite rotator cuff patch in clinical application.

The invention belongs to a biological signal identification and data processing technology, and relates to a multi-sensor fusion action identification system for shoulder rehabilitation evaluation. Comprising a flexible strain sensor, an inertial measurement unit, a multi-channel data acquisition module, a data preprocessing module and an action recognition module, the flexible strain sensor comprises a plurality of sensing areas and connecting areas which are distributed around the rotator cuff area; the multichannel data acquisition module acquires multichannel sensing signals, and the multichannel sensing signals are preprocessed by the data preprocessing module. The action recognition module adopts a multi-modal feature fusion algorithm based on a bidirectional cross-modal interactive attention and time period specificity adaptive weight mechanism to realize dynamic correlation modeling between a strain sensing signal and inertial measurement data in a unified time sequence space, and cross-modal time sequence features are fused; capturing the global and local dependency relationship of the shoulder movement, and recognizing various rehabilitation actions. The method effectively overcomes the static limitation of the prior art, and remarkably improves the precision and robustness of shoulder rehabilitation evaluation.

The utility model relates to a rotator cuff stitching instrument which aims to solve the problem that a puncture core needle is broken. Comprising a front suturing part, a middle conduction part and a rear handle control part, and the front suturing part comprises an end-ring-shaped upper fixed lip valve used for clamping rotator cuff tissue and a needle-tube-shaped lower movable lip valve capable of being controlled to be folded upwards; the front end of the needle-tube-shaped lower movable lip valve is communicated with an upward tubular needle head used for penetrating through the upper fixed lip valve end ring upwards, and the PDS degradable suture line penetrates out of the upward tubular needle head through the needle-tube-shaped lower movable lip valve. The upper end of the upward tubular needle head is a beveled tube head needle opening with a backward opening. And the upper part of the upward tubular needle head is bent backwards in an arc shape. The disposable puncture core needle has the advantages that the problem that the disposable puncture core needle is broken during suturing is solved, the cost of the puncture core is saved, and the damage to the rotator cuff is small.

A novel device for bioinductive implant placement in an in vivo surgical site, and method of use thereof, is disclosed. Sequential actuation of a series of levers (or other actuation means) operates to allow for expansion or splaying of a bioinductive implant patch, such as a patch comprised of collagen fibers, over an in vivo surgical site such as a torn tendon in a shoulder rotator cuff. With the patch expanded, it may be surgically fixed in place and provide for more efficient and thorough healing and repair of the tendon.

The invention discloses a rotator cuff patch and a preparation method thereof, and belongs to the technical field of repair materials. According to the preparation method provided by the invention, the bioactive material is combined, the fibers are gradually transited from random arrangement to aligned arrangement through electrostatic spinning, the difference of fiber orientation structures between the random fiber layer and the aligned fiber layer is effectively reduced, and the bonding force between the layers of the patch is greatly enhanced in cooperation with steam welding treatment; the layering phenomenon is effectively avoided; the tensile strength of the rotator cuff patch prepared by the method reaches 18 MPa, and the rotator cuff patch has excellent mechanical properties, can meet the requirements on flexibility and tear resistance during sewing, can provide enough mechanical support for the rotator cuff in the repair process, and adapts to the complex shoulder movement environment.

This application relates to the field of sports medicine, and particularly to a knotless fixation nail for rotator cuff tears, including a humeral screw for being driven into the humerus during surgery; a rotator cuff screw for being fixed at the rotator cuff during surgery; a connecting piece including a humeral screw fixing part, a rotator cuff screw fixing part, and a connecting part, the connecting piece being located between the humeral screw fixing part and the rotator cuff screw fixing part, and the humeral screw fixing part, the rotator cuff screw fixing part, and the connecting part being integrally formed, with a plurality of convex structures provided on the humeral fixing part; a rotator cuff fixing piece provided between the head of the rotator cuff screw and the rotator cuff screw fixing part for assisting in fixing the rotator cuff to prevent tendon slippage. This application has the effect of reducing the recurrence probability of patients.

The invention belongs to the technical field of medicines, and particularly relates to a BME-SIS biological membrane as well as a preparation method and application thereof. The BME-SIS biological membrane is provided through a screening preparation process based on an SIS material and through composite culture and decellularization treatment of the SIS material and BMSCs. The BME-SIS biological membrane has a good decellularization effect, and avoids the problem of insecurity caused by xenograft / allograft; compared with an SIS material, the BME-SIS biological membrane has the effects of remarkably promoting cell adhesion, proliferation and differentiation, is applied to a rat rotator cuff tearing model, is proved to have the effect of remarkably promoting rotator cuff tearing healing in multiple aspects of molecular biology, histology, motility, mechanics, imaging and the like, is beneficial to reducing the retearing risk after the rotator cuff operation, and has a good application prospect. And the treatment effect is stable. The BME-SIS biological membrane disclosed by the invention can be used for bioremediation patches, and has a good prospect in the aspect of rotator cuff tear healing.

The invention relates to a composite rotator cuff patch and a preparation method and application thereof, and belongs to the technical field of biological materials. The structural layer and the biological layer are all-biomedical materials, a cross-linking agent does not need to be introduced, the problem that a traditional synthetic material is non-degradable or short in degradation period is solved through the alternate composite design of the structural layer and the biological layer, the degradation period is controllable, the tear resistance and mechanical support of the patch are improved, and the application prospect is wide. The risk of inflammatory reaction is effectively reduced, the biocompatibility and safety of the patch are improved, and finally the applicability and effect of the composite rotator cuff patch in clinical application are improved.

The invention discloses a continuous suturing rotator cuff stitching instrument which comprises a supporting tube and is characterized in that a stitching tube is arranged on one side of the supporting tube, a right needle clamping seat and a left needle clamping seat are arranged on the two sides of the end of the stitching tube respectively, a connecting seat is arranged on one side of the supporting tube, and an adjusting seat is arranged on one side of the connecting seat. A sewing operation mechanism is arranged in the adjusting seat; one side of the right needle clamping seat and one side of the left needle clamping seat are provided with a right needle clamping hole and a left needle clamping hole respectively, and the right needle clamping seat and the left needle clamping seat are further internally provided with needle body fixing and adjusting mechanisms used for controlling suture needle bodies to be alternately fixed and completing continuous suture. Alternate and continuous suturing of tissue can be achieved, suturing efficiency in an operation is greatly improved, operation difficulty is reduced, uniform suturing force can be applied to the right needle clamping base and the left needle clamping base, puncture efficiency of the suturing needle is improved, and meanwhile suturing precision is improved.

The present invention relates to the field of medical device technology, and discloses a tendon anchor implantation system. The tendon anchor implantation system includes a drill rod, an inner core rod, and an implantation rod, wherein the implantation rod is provided with a first guide hole; the tendon anchor is provided with a penetrating second guide hole, the first end of the inner core rod is passed through the first guide hole and the second guide hole, one end of the drill rod is connected to the first end of the inner core rod, and the other end is conical and extends out of the second guide hole; the tendon anchor includes a fixing seat and a nail body that are connected to each other, the implantation rod abuts against the fixing seat, the fixing seat is used to fix the patch, and the side wall of the nail body is provided with a barbed protrusion. Compared with the prior art, the present invention does not need to set a pre-piercing point on the rotator cuff, does not need to pull the lead wire, reduces damage to the rotator cuff, and realizes the fixation of the patch. The tendon anchor can quickly and conveniently complete the implantation process in conjunction with the implanter, thereby improving the efficiency of the operation and shortening the operation time.

The present invention belongs to the field of biomedical engineering technology, and in particular, relates to a biological rotator cuff patch with a dual gradient structure and a preparation method thereof. The preparation method is: electrospinning a spinning solution, controlling the rotation speed of a receiving drum to increase at a constant rate during the electrospinning process, and obtaining a nanofiber membrane after electrospinning; L-polylactic acid and D-polylactic acid are dissolved in the spinning solution at the same time; the minimum rotation speed of the receiving drum is 100-500rpm and the maximum is 3000-4000rpm. The biological rotator cuff patch with a dual gradient structure finally obtained presents an orientation gradient and a piezoelectric effect gradient on a thickness scale at the same time, and has both mechanical support capability and biocompatibility, realizing the bionic healing of the gradient structure patch.

The application belongs to biological signal recognition and data processing technology, and is a multi-sensor fusion motion recognition system for shoulder rehabilitation evaluation. The system comprises a flexible strain sensor, an inertial measurement unit, a multi-channel data acquisition module, a data preprocessing module and a motion recognition module. The flexible strain sensor comprises a plurality of sensing areas and connecting areas distributed around the rotator cuff area. The multi-channel data acquisition module acquires multi-channel sensing signals, which are preprocessed by the data preprocessing module. The motion recognition module adopts a multi-modal feature fusion algorithm based on bidirectional cross-modal interaction attention and time period-specific adaptive weight mechanism to realize dynamic correlation modeling between strain sensing signals and inertial measurement data in a unified time sequence space, fuse cross-modal time sequence features, capture global and local dependency of shoulder movement, and recognize multi-class rehabilitation actions. The application effectively overcomes the static limitation of the prior art and significantly improves the accuracy and robustness of shoulder rehabilitation evaluation.

Described herein are methods for repairing tissues (e.g., a meniscus, anterior cruciate ligament, rotator cuff, etc.) using collagen implants suitable. For example, the collagen implants are injected into a repair site to heal the tissue. Further described are collagen slurries, injectable collagen implants and methods of preparation thereof.

Provided is a Raglan sleeve upper garment that allows easy movement of the wrist in the front-back, left-right, and up-down directions, and also allows easy rotation of the shoulder. 【Solution means】In a Raglan sleeve upper garment where the sleeve extends to the collar, the sleeve comprises at least a shoulder-side sleeve member provided on the outer side of the body and an armpit-side sleeve member provided on the inner side of the body, and the shape of the front body side of the shoulder-side sleeve member is pre-twisted so as to pass from the collar through the front side of the shoulder joint and further through the inner epicondyle side of the elbow joint to reach the radial side of the wrist.

The utility model discloses a shoulder pillow device for limiting an affected limb after a rotator cuff repair operation. The shoulder pillow device comprises a bottom pad and a clamping bag. The bottom pad is arranged from the shoulder of the affected side to the arm of the affected side, so that the shoulder of the affected side is lifted up to the arm of the affected side. The clamping bag is triangular and is clamped between the affected arm and the trunk, one corner of the clamping bag is attached to the interior of the armpit of the affected side, and the space of the armpit of the affected side is filled. When a patient sleeps at night, the patient after the rotator cuff repair lies on the sickbed, the shoulder of the affected side is supported to the height of the arm of the patient through the bottom pad, the abduction angle of the shoulder joint of the affected side is supported through the clamping bag, the clamping bag is attached to the abduction position of the affected limb to be placed, the abduction position braking effect of the affected limb is achieved, postoperative wound growth is promoted, and secondary injury caused by traction due to adduction of the arm of the patient is avoided; and the patient feels comfortable.

The utility model discloses a pistol type rotator cuff sacculus conveying device which comprises a pistol type holding handle, a conveying outer tube, a conveying inner tube, a Luer connector tube and a control assembly. The pistol type holding handle is provided with a transversely extending accommodating part and a holding part which obliquely extends downwards from one end of the accommodating part; one end of the conveying outer pipe is fixedly connected with the accommodating part; the conveying inner tube is inserted into the conveying outer tube and can axially move in the conveying outer tube, one end of the conveying inner tube is arranged in the containing part, the other end of the conveying inner tube extends out of the conveying outer tube, and a rotator cuff balloon is arranged at the other end of the conveying inner tube; at least part of the Luer taper pipe is arranged in the accommodating part, is fixedly connected with one end of the conveying inner pipe and is configured to move along the axial direction of the accommodating part; the control assembly is at least partially arranged in the holding part, one end of the control assembly is connected with the Luer taper pipe, and the control assembly is used for controlling the Luer taper pipe to move in the axial direction of the containing part. The pistol type rotator cuff balloon conveying device is easier to hold, and the operation accuracy can be improved.

Described herein are methods for preparing collagen slurries and collagen implants suitable for injection into a repair site to repair a tissue, for example, an anterior cruciate ligament, rotator cuff tendon, and / or a meniscus. Further described are slurries and implants prepared by such methods.

The invention belongs to the technical field of weft-knitted rotator cuff patches, and relates to an integrally-formed weft-knitted rotator cuff patch with a full-stitch anchor and preparation of the integrally-formed weft-knitted rotator cuff patch with the full-stitch anchor, and the whole rotator cuff patch is of a sheet-shaped structure formed by weft knitting of yarn and stitches; the whole body formed by yarns in the rotator cuff patch is divided into a patch main body area, a patch forking and extending area and a nail body area which are sequentially arranged in the longitudinal direction, a sewing thread is only located in the nail body area and does not participate in knitting and looping, at least one sewing thread is arranged in each nail body area, and the nail body area and the sewing thread in the nail body area form a full-sewing-thread anchor nail. During preparation, a computerized flat knitting machine is adopted for production, firstly, yarn is adopted for knitting a patch main body area, then a knitting area is gradually narrowed down, a patch forking and extending area is formed in the process, finally, yarn is adopted for knitting a nail body area, a sewing thread is introduced into the knitting area in a weft insertion mode, and then the sewing thread is taken out of the knitting area in the weft insertion mode. The rotator cuff patch has the characteristics of high mechanical strength, uniform stress distribution, high fixing strength and the like.

The invention relates to the technical field of medical instruments, in particular to a rotator cuff postoperative fixing brace which comprises two protective shells and first hook-and-loop fasteners, the first hook-and-loop fasteners are movably connected to the outer sides of the two protective shells, a fixing plate is fixedly connected to the right sides of the protective shells, and a first movable plate is connected to the top of the fixing plate. A first rotating shaft is inserted into the connecting point of the fixed plate and the first movable plate, the first movable plate is rotationally connected with the fixed plate through the first rotating shaft, the right end of the first movable plate is connected with a second movable plate, and a supporting assembly is arranged between the first movable plate and the fixed plate. Through the arrangement of the supporting assembly, the lifting supporting angle of the limbs of a patient can be adjusted according to needs, self-adaptive adjustment is conducted under the condition that the support is worn, a movable block inclines in a movable groove according to the seesaw principle, accordingly, a first movable plate is limited, the elbows cannot be suspended, and therefore the patient can conveniently and rapidly sit on the elbow. The joint soreness is reduced; and the comfort of deltoid muscles is improved.

The invention discloses a variable-diameter labor-saving humerus prosthesis for rotator cuff deficiency. The variable-diameter labor-saving humerus prosthesis comprises an outer-layer humerus head prosthesis and an inner-layer humerus head prosthesis, wherein the appearance of the outer humerus head prosthesis is of a partial spherical structure, and the diameter of the outer humerus head prosthesis is larger than that of a physiological humerus head of a patient; the appearance of the humerus head prosthesis connected with the inner layer of the humerus handle is of an over-hemisphere structure or a complete spherical structure; at least the part, exceeding the hemisphere, of the inner-layer humerus head prosthesis is embedded in the outer-layer humerus head prosthesis, and the inner-layer humerus head prosthesis can rotate in a universal mode in the outer-layer humerus head prosthesis; the sphere center of the inner humerus head prosthesis is deviated to the globe top side of the outer humerus head prosthesis relative to the sphere center of the outer humerus head prosthesis, so that the rotation center of the prosthesis moves inwards, the arm of force is increased, the labor-saving effect of the upward lifting action is achieved, and it is guaranteed that the tensioned deltoid muscle can complete the initial 30-degree upward lifting action; a middle buffer structure passing through a hemisphere can be arranged between the two layers of prostheses, so that the structural stability of the whole prosthesis in use is ensured on the basis of ensuring that the arm of force is increased to the maximum extent.

Determining properties of muscle structures using artificial neural networks. Techniques for determining a quantification of at least one property of a muscle structure including at least one muscle and at least one tendon are disclosed. A quantification of at least one property of a rotator cuff can be determined by using at least one artificial neural network and based on one or more medical images depicting the muscle structure of a patient.

The invention relates to the technical field of rotator cuff sewing, and particularly discloses a rotator cuff sewing thread passing device which comprises a grip and a supporting tube fixedly connected to the upper end of the grip, a trigger is connected to the grip through a shaft and connected with a puncture tube through a driving mechanism, and the driving mechanism comprises a synchronous seat connected to the lower surface of the tail end of the puncture tube. The lower end of the synchronous seat is of an n-shaped structure, bent notches are evenly formed in the middle of the lower surface of the puncture tube, the puncture tube is connected with the supporting tube through a bending mechanism, the bending mechanism comprises an L-shaped supporting seat fixedly connected to the supporting tube, and the supporting tube is further connected with a wire inlet seat through a U-shaped supporting seat. And a wire inlet pipe is connected to the wire inlet seat in a penetrating manner. According to the invention, thread passing can be conveniently carried out in a rotator cuff repair operation, and the defects that a suture hook thread passing device excessively depends on doctor experience or an inner core blade of a suture gun is broken and the like are overcome.

The invention discloses a 360-degree all-dimensional motion T-shirt production method and a T-shirt. The method comprises the steps that the adaptability of the T-shirt to 360-degree composite motion is achieved by adopting the combination mode of rotator cuff structure optimization, armpit area integrated design, front fly seamless adhesive pressing treatment, three-dimensional model adaptation and stress concentration area seamless weaving; the rotator sleeve structure is optimized to adopt a small-angle rotator sleeve connecting design; the integral design of the armpit area is that the sleeve bottom cutting piece, the front side piece and the rear side piece are integrally cut; the seamless adhesive pressing treatment of the top fly is that an ultrasonic seamless adhesive pressing process is adopted on the top fly; according to the three-dimensional model, the abdomen allowance is increased on the front piece, and a hidden waist tightening structure is formed on the rear piece through side abutted seam dart waist tightening. The seamless weaving of the stress concentration area is that a seamless weaving technology is adopted in the shoulder transition area and the armpit stress concentration area. According to the method, the comfort, the degree of freedom and the durability in the movement process are remarkably improved.

The invention discloses a release device for a rotator cuff gap. The release device comprises an elastic arm binding belt, a wearable fixing device, a hard outward traction arm, a backward traction strip, a lateral traction strip and a hard inward fixing arm, wherein the hard outward traction arm is fixedly arranged on the wearable fixing device, the backward traction strip and the lateral traction strip are fixedly arranged on the hard outward traction arm, and the hard inward fixing arm is movably connected to the wearable fixing device. The invention further provides a method for releasing the rotator cuff gap. The method adopts the device for releasing the rotator cuff gap. According to the humerus internal distal end fixing device, the humerus internal distal end can be fixed, the humerus head can be transversely and outwards pulled, then the rotator cuff gap can be automatically released, and then auxiliary treatment of collision between the coracoid and the humerus head after the rotator cuff gap is narrowed is facilitated.

Provided herein are chondro-promotive nanogels, and multilayer membranes with one layer including a dispersion of the chondro-promotive nanogels, and another layer including encapsulated osteo-promotive agents. The provided materials are particularly useful for guiding fibrocartilaginous interface regeneration in a subject having an injured tendon–bone interface. Also provided are methods of producing the disclosed multilayer membranes, and methods of using the multilayer membranes for repair of tendon–bone interfaces.

The utility model relates to the field of medical instruments, in particular to a forceps head and grasping forceps for a rotator cuff suturing operation, and the forceps head for the rotator cuff suturing operation comprises an upper clamping jaw, a lower clamping jaw, a lower clamping jaw, an upper clamping jaw and a lower clamping jaw, and the lower clamping jaw is hinged with the upper clamping jaw and is provided with a lower through hole through which a suture line penetrates, and the lower through hole is opposite to the upper through hole when the forceps head clamps the rotator cuff. According to the forceps head for the rotator cuff suture operation, the problem that in the existing rotator cuff suture operation process, a surgeon difficultly hooks a suture line drilled out of the lower surface of a rotator cuff and pulls the suture line back to the upper surface of the rotator cuff through tools such as a line hooking device, and consequently time and labor are wasted in the threading process of the rotator cuff suture operation is solved; therefore, when the rotator cuff is clamped and fixed, a surgeon can simply, conveniently and quickly thread the rotator cuff.