160 results about "Rotator muscles" 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.

Methods for creating high-density arrays of suture stiches through a tendon into bone for reattachment of a torn tendon, particularly a rotator cuff tendon. The method includes providing a pre-strung plurality of anchors, each anchor having at least one passage therethrough with a continuous length of suture slidably and serially threaded through the at least one passage of each anchor. Each of the anchors further includes a locking assembly for locking the suture within the individual anchor. A first anchor is implanted through the tendon and the suture is locked. A second anchor is implanted a selected close distance from the first anchor, then applying tension to the suture extending from the first anchor and passing through the second anchor the second anchor is locked to create a single suture tensioned and locked stitch between the first and second anchor. This process is repeated for each anchor in the array.

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 invention provides a rotator cuff suture gun, and relates to the field of medical instruments. The rotator cuff sewing gun comprises a gun body and a front handle, the lower end of the front handle is movably connected to the position, close to the lower end, of the center of the front side wall of the gun body, the front end of the front handle is movably connected with a connector, a gun barrel is connected to the center of the front side wall of the connector in a penetrating mode, and a movable groove is formed in the position, close to the upper end, of the center of the rear side wall of the front handle. And the movable groove penetrates through the rear side wall of the front handle and is communicated to the interior, a needle threading structure is movably connected to the interior of the upper end face of the gun body, and a retainer is arranged in the front handle located at the rear end of the connector. Through the arrangement of a limiting structure, during use, the gun body and the front handle are squeezed and held, a reset spring is squeezed, then a doctor can pull a movable plate forwards through fingers, the movable plate does circular motion with a connecting rod as the circle center, and under the connecting effect of the movable plate and a positioning rod, the movable plate can move forwards and backwards; therefore, the clamping position is fixed and limited.

The invention discloses a composite stent for rotator cuff repair and a preparation method thereof, and belongs to the field of medical instruments. The stent comprises a sheet-shaped composite layer and a strip-shaped composite layer, the sheet-shaped layer is formed by compounding a synthetic polymer woven body with a natural polymer sponge, the strip-shaped layer is formed by compounding a synthetic polymer woven body with a natural sponge containing nano-hydroxyapatite, the sheet-shaped layer and the strip-shaped layer are directly connected through a warp knitting or weft knitting process, and the width ratio is (5: 1)-(10: 1). During preparation, the woven sheet layer and the woven strip layer are soaked in a natural polymer solution and a solution containing nano-hydroxyapatite respectively, and the porous sponge composite is formed through pre-freezing and freeze-drying. According to the scaffold, mechanical strength matching is achieved through weaving connection, bone regeneration is induced in a targeted mode through hydroxyapatite, meanwhile, the porous sponge is matched with soft tissue healing, the problems that a traditional patch is poor in bone tunnel integration and interface stress is concentrated are solved, and the scaffold is suitable for rotator cuff injury repair.

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.

The present invention provides a method and system for locating shoulder cysts based on magnetic resonance imaging (MRI) images, which relates to the technical field of medical image processing. The method includes: acquiring multiple MRI images; respectively constructing a target detection model for the humeral head region and a target detection model for cysts based on a deep learning algorithm; inputting the MRI images into the target detection model for the humeral head region for detection and outputting an image of the humeral head region; inputting the image of the humeral head region into the target detection model for cysts for detection and outputting an image of the cyst region; and determining the position of the cyst according to the center point coordinates of the cyst region image through a spatial positioning algorithm. The present invention reduces the influence of MRI images by speckle noise and echo perturbation, as well as the dependence on doctors' cognitive abilities and clinical experience, improves the image quality, makes the difference between cysts and normal tissues more obvious, and avoids confusing cysts with fluid accumulation caused by rotator cuff injuries.

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 provides a swim bladder-based bioactive patch for rotator cuff tendon repair and a preparation method thereof, and relates to the technical field of biological materials.The swim bladder-based bioactive patch is composed of a swim bladder substrate and a metal-phenol toughening network component, has good tensile strength and biological activity and can be used for repairing rotator cuff tendons. The compound can support cell adhesion and proliferation, stimulate differentiation and phenotype maintenance of various cells derived from tendon-bone tissue, and is expected to be used for repairing rotator cuff tendon injury and promoting tendon-bone healing. Besides, the invention provides a preparation method of the swim bladder-based rotator cuff patch, a special microstructure of directionally arranged nano-matrix fibers is reserved, and a metal-phenol network further plays roles in toughening the patch and enhancing the biological activity of the material. Particularly, the metal-network has an active oxygen free radical response function, excessive free radicals at the shoulder joint part can be removed, and metal ions are released, so that the patch has the effects of resisting bacteria, resisting inflammation, resisting oxidation and improving healing.

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 invention relates to a rotator cuff muscle rehabilitation massager, and belongs to the technical field of medical rehabilitation instruments.The rotator cuff muscle rehabilitation massager comprises a fixator, a supporting frame and a massager body, the supporting frame comprises a vertical rod and a transverse rod integrally arranged at the top end of the vertical rod, and an arc transition section is arranged at the intersection of the transverse rod and the vertical rod; the massager comprises a massage plate, a telescopic massage head, an electrode plate and a sliding rail, the sliding rail comprises an electromagnetic slide way and an electromagnetic sliding block, connecting rods are fixedly arranged at the two ends of the electromagnetic sliding block, and the other ends of the connecting rods extend out of the sliding rail to be fixed to the massage plate. The arc-shaped transition area is creatively arranged, comfort is remarkably improved, the arc-shaped transition area is creatively utilized, the arc-shaped track is designed according to local conditions, therefore, multi-directional full-coverage massage is conducted on rotator cuff muscles of a patient, and possibility is provided for improving muscle vitality, promoting metabolism, awakening muscle memory and accelerating focus rehabilitation.

The utility model discloses a rotator cuff injury treatment pad, and relates to the technical field of rotator cuff injury treatment pads. Comprising a patch which is provided with a plurality of wire inlet holes. And the mounting mechanism is arranged at the bottom of the patch and comprises an anchor nail, a fine line, a line fixing rod and an elastic sheet. When the patch is used, a fine line can penetrate through the corresponding line inlet hole and be pushed into the anchor nail through the anchor nail, the line fixing rod punctures the fine line, the elastic force of the elastic piece pushes the line binding block to abut against the fine line, the fine line is buckled in the anchor nail, and then the patch is completely attached to the corresponding tissue position of the rotator cuff. The bunching block can move towards the fine line through the bunching rod, so that the bunching rod penetrates through the fine line, and the stability of the fine line buckled on the anchor nail is effectively guaranteed. The problem that according to a traditional rotator cuff injury treatment gasket, the contact area of a first thin line and a first gasket is limited, the contact area of a second thin line and a second gasket is limited, and the first gasket and the second gasket are prone to displacement at the rotator cuff tissue is solved.

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.

The invention discloses a composite rotator cuff patch and a preparation method thereof. The composite rotator cuff patch is divided into an electrostatic spinning layer and a collagen layer. The electrostatic spinning nanofiber membrane is coated with a layer of crosslinked collagen gel, and then composite freeze drying is performed to obtain the composite rotator cuff patch. The rotator cuff patch has good biocompatibility and appropriate tissue adhesion, does not need to be sutured and fixed, can be degraded in vivo, has degradation time close to rotator cuff repair time, and does not need to be taken out after an operation.

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 invention discloses a cold compress structure for rotator cuff injury, which comprises a base, a height regulation and control assembly, a rotary cold compress assembly, a transmission assembly, a power assembly and a support groove, the height regulation and control assembly is fixedly arranged on the power assembly, the rotary cold compress assembly is slidably arranged on the transmission assembly, the transmission assembly is slidably arranged on the power assembly, the power assembly is fixedly arranged on the base, and the support groove is fixedly arranged on the base. The supporting groove is fixedly formed in the base. The invention belongs to the technical field of rotator cuff cold compress, and particularly relates to a cold compress structure for rotator cuff injury. The height adjusting and controlling assembly, the rotary cold compress assembly and the power assembly are arranged, and the problems that a rotator cuff injury cold compress scheme in the current market is difficult to adapt to patients with different body length characteristics, and the rotator cuff cold compress experience is poor are solved.

The present invention relates to the field of medical devices, and discloses a rotator cuff repair device, comprising a repairer body, a sleeve and a bone needle, wherein the sleeve is arranged at the lower end of the repairer body, the bone needle is arranged in the sleeve, a driving structure for driving the bone needle to slide in the sleeve cavity is arranged inside the repairer body, a puncture part of the lower end of the bone needle protruding outside the sleeve is in a predetermined curved shape, a tip and a thread port for driving a suture are arranged at the end of the bone needle, the driving structure comprises a transmission cylinder, a reset mechanism and a positioning device, the transmission cylinder is located at the lower end of the repairer body and is connected to the upper end of the bone needle and can move downward freely under force, the reset mechanism is located at the lower end of the transmission cylinder in the repairer body and can drive the transmission cylinder to move upward in the repairer body, and the positioning device is located on the repairer body and is provided with a function of positioning the up and down movement of the transmission cylinder. When the bone needle is used for puncture and withdrawal, it can be operated by one person, and the operation is simple and practical.

The present invention discloses a rotator cuff patch, its preparation method and application, belonging to the technical field of composite biomaterials in medical engineering. The present invention prepares an oriented nanofiber patch by electrospinning a synthetic biodegradable high polymer and a natural bioactive protein of biological origin. Calcium silicate nanoparticles are in-situ coprecipitated at the distal end of the oriented nanofiber patch, and connective tissue growth factor is loaded at the proximal end of the oriented nanofiber patch to obtain the rotator cuff patch. It is a gradient composite rotator cuff patch with a tendon-promoting region loaded with connective tissue growth factor, a cartilage-promoting region co-loaded with connective tissue growth factor and calcium silicate, and a bone-promoting region with calcium silicate deposition. It can be used for the treatment of acute rotator cuff tears, effectively realizing multi-tissue regeneration of tendon, cartilage and bone, and then synchronously completing tendon-bone interface healing and promoting rotator cuff injury repair.

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.