17 results about "Pelvic fracture" patented technology

This application discloses an external positioning and guiding device for pelvic fracture channel screws. This application achieves a first repositioning of the lesion location through a percutaneous positioning guide plate with multiple spaced positioning perforations and multiple first positioning tubes connected to the base body, each equipped with a positioning and guiding component. The first positioning tubes pass through corresponding positioning perforations, abutting against the patient's iliac bone, thus achieving a second repositioning of the lesion location. Multiple first positioning pins pass through corresponding first positioning tubes and connect to the patient's iliac bone, achieving stable connection and limitation of the base body based on dual positioning, preventing base body displacement. Finally, by connecting the positioning guide tubes to the base body and passing the channel screws through the positioning guide tubes, connecting the affected and healthy iliac bones, the channel screws are positioned and oriented.

The utility model relates to the technical field of turning-over assisting, and discloses a pelvic fracture external fixation patient turning-over assisting device which comprises a bed frame, a hollowed-out bed board is installed on the bed frame, a turbulent flow fan is installed on the hollowed-out bed board, an inclined board set is arranged in the hollowed-out bed board, and a limiting hole is longitudinally formed in the middle of the hollowed-out bed board. A rotating shaft is inserted into the limiting hole, an inclined plate group is mounted on the rotating shaft, and a motor is mounted on the outer wall of the bed frame. When a patient needs to be assisted in turning over, a motor drives a rotating shaft to rotate, the rotating shaft rotates to drive an inclined plate set to turn over, one side of the inclined plate set tilts up, and therefore the patient is assisted in turning over, and when the inclined plate set tilts, a turbulent flow fan below the inclined plate set on the side which is relatively tilted and lifted is started, and the patient is assisted in turning over. Therefore, air on the turning-over side of the patient is disturbed, the ventilation effect across the bedding is improved, and the phenomenon of pressure sores of the patient is relieved.

This invention relates to the field of fracture fixation technology, and more particularly to an inflatable pressure pelvic fracture fixator, comprising an L-shaped plate, an air pump fixedly connected to one side of the L-shaped plate, an air bladder fixedly connected to one side of the L-shaped plate, a rectangular groove formed on one side of the L-shaped plate, and a protrusion fixedly connected to the other side. A retaining strip is fixedly connected to the surface of the protrusion. When a patient with a pelvic fracture needs fixation, the fixator is moved from the patient's sides towards the patient's waist, allowing the L-shaped plate to extend below the patient's waist. The retaining strip on the surface of the protrusion engages with the retaining groove inside the rectangular groove, thus fixing the patient's waist. When the protrusion is inserted into the rectangular groove, a trapezoidal block is compressed into the groove. When the protrusion is fully engaged with the rectangular groove, the trapezoidal block extends out from the groove and penetrates the through groove under the elastic potential energy of the spring, thus fixing the protrusion inside the rectangular groove.

The invention relates to the technical field of medical instruments, and discloses double knee fixing equipment for a pelvic fracture patient, which comprises a supporting shell, a first elastic piece is arranged in the supporting shell, a supporting frame is fixedly connected to the outer part of the supporting shell, a locking rod is arranged at one end of the supporting shell, and a second elastic piece is arranged at the other end of the supporting shell. The locking rod is arranged outside the first elastic piece, a self-adaptive mechanism is arranged inside the locking rod, the outer portion of the self-adaptive mechanism is arranged inside the supporting shell, the self-adaptive mechanism comprises a locking structure and an auxiliary assembly, and the outer portion of the locking structure is arranged inside the supporting shell and the locking rod. The first pressing block is pressed to drive the second elastic piece to be compressed, so that the effect that the device adapts to the body shape of a patient is achieved, the device can change according to the size of the lower limb posture of the patient, uniform and controllable constraint force is continuously provided, and fixing failure caused by constraint relaxation and displacement is fundamentally avoided.

The invention relates to a method for producing a template for a bone plate for treating a fracture of a bone of a human or animal, in particular for a bone plate for treating a pelvic fracture of a human. According to the invention, in order to produce the template in a patient-specific manner with high practical applicability, a digital data set of an image of bone fragments of the fracture is obtained using an imaging method, in particular an MRI or CT or X-ray method, wherein the method comprises the following steps: a) creating a digital, in particular virtual, three-dimensional bone model of the bone fracture fragments on the basis of the data set; b) determining a digital template design adapted to the bone model; c) producing, in particular 3D printing, the template on the basis of the determined template design. The invention also relates to a data processing device, to a system for producing the template, and to a computer program product.

The utility model discloses a detachable cushion type pedestal pan, which belongs to the technical field of pedestal pans and is characterized by comprising a pan body, a seat cover structure is arranged at the top of the pan body, a comfortable component is arranged at the top of the seat cover structure, and a cover plate structure is arranged at the top of the comfortable component. The comfortable component comprises a hair-surface cushion arranged at the top of the seat cover structure, a hook-surface cushion is adhered to the top of the hair-surface cushion, and a soft sponge block is fixedly connected to the top of the hook-surface cushion. By arranging the comfortable component, the soft sponge block and comfortable breathable mesh cloth of the comfortable component can provide soft support and good breathability; the comfortable component is simple in structure and convenient to use, pain of a pelvic fracture patient when the patient uses the bedpan is effectively relieved, the comfort of the patient is improved, rehabilitation of the patient is facilitated, meanwhile, the hair surface pad and the hook surface pad are bonded, so that the comfortable component is easy to detach and clean, sanitation is kept, and the risk of cross infection is reduced.

The invention provides a reamer and an assembling method thereof, and relates to the technical field of medical instruments. The reamer comprises a drill tail, a double-face convex bead connecting piece, a double-face concave bead connecting piece and a drill bit. The two ends of the double-face convex bead and the double-face concave bead connecting piece are connected with the drill tail and the drill bit respectively. By means of the flexible shaft structure, sufficient rigidity and torque transmission efficiency are guaranteed, meanwhile, good space adaptability and path adjustability are achieved, continuous and smooth steering can be achieved in a medullary cavity along a complex anatomical path, multi-angle bone channel reaming through a single incision is supported, the number of puncture times and instrument replacement are reduced, and operation is easy and convenient. The risks of tissue damage, bleeding and infection are reduced. Meanwhile, the multi-channel positioning precision and collaboration are improved, the screw layout is optimized, the internal fixation stability is enhanced, the perspective frequency and X-ray exposure in the operation are reduced, and the operation safety and efficiency are improved. The invention is suitable for percutaneous minimally invasive fixation of complex pelvic fracture, and breaks through the application limitation of traditional rigid instruments.

The present invention relates to a remotely controlled pelvic fracture reduction system. The remotely controlled pelvic fracture reduction system comprises a human-machine interaction automatic control unit, two or more servo drive systems, and two or more pelvic rotary push-pull devices. The human-machine interaction automatic control unit enables interactions via a human-machine interaction interface, and formulates, on the basis of an artificial intelligence algorithm of a pelvic unlocking reduction path, an automatic planning strategy for a reduction path; then each servo drive system provides a servo drive of a high-precision servo motor according to the automatic planning strategy for the path reduction, so as to drive a respectively connected pelvic rotary push-pull device to perform an axial displacement push-pull reduction action on a pelvic fracture fragment of a patient in a respective direction, thereby completing a coordinated and consistent spatial linkage with multiple degrees of freedom among the pelvic fracture fragments of the patient, achieving remotely and automatically controlled angular rotation and axial push-pull reduction on several two-dimensional planes, ensuring the intelligence, precision, and minimal invasiveness of the reduction of a severely displaced pelvic fracture, lowering the entrance threshold of pelvic fracture treatment, and simultaneously reducing fluoroscopy-induced radiation damage to medical personnel and the patient.

A pelvic bone plate for use in for stabilizing a fracture of a pelvic bone of a patient includes a brim segment configured to be affixed to a portion of a pelvis of a patient and a quadrilateral surface (QLS) segment coupled to the brim segment via at least one bridge. The QLS segment can include a bearing surface configured to be arranged directly adjacent to a QLS of the pelvis and an engagement surface substantially opposing the bearing surface that is configured to be engaged by a surgical clamp. The brim segment can include a plurality of openings configured to receive one or more fasteners.

The invention provides an intramedullary reamer and an assembling method thereof, and relates to the technical field of medical instruments. The intramedullary reamer comprises a drill tail, a drill bit and a plurality of bead joint structural bodies connected in sequence. The multiple bead joint structural bodies are connected in series to form a flexible shaft mechanism, the drill tail is connected to one end of the flexible shaft mechanism, and the drill bit is connected to the other end of the flexible shaft mechanism. The flexible shaft mechanism has good torque transmission capacity and local bending deformation capacity, bone channels in multiple directions can be constructed under a single approach, the flexible shaft mechanism adapts to the complex pelvic anatomy curvature, and precise guiding reaming is achieved. The defects that a traditional rigid instrument is limited in path and needs multi-point puncture are overcome, repeated instrument replacement is avoided, the operation time is remarkably shortened, and tissue damage and radiation exposure are reduced. By optimizing the bead joint connecting structure and the material ratio, the torsional strength and the bending controllability are considered, the reaming efficiency and the path adaptability are improved, and a safe and efficient new-generation tool is provided for minimally invasive fixation of unstable pelvic fractures.

The invention discloses a pelvic fracture channel screw in-vitro positioning and guiding device. According to the application, the plurality of positioning through holes arranged at intervals are formed in the percutaneous positioning guide plate, and the plurality of first positioning pipes provided with the positioning guide assembly are respectively connected to the base frame main body, so that the first repositioning of the focus position is realized through the percutaneous positioning guide plate, and each first positioning pipe respectively penetrates through the corresponding positioning through hole; a plurality of first positioning needles penetrate through the corresponding first positioning pipes and are connected with the ilium of the patient, so that the base frame body is stably connected and limited on the basis of double positioning, deviation of the base frame body is prevented, and the accuracy of the ilium of the patient is improved. The positioning guide pipe is connected to the base frame body, the channel screw penetrates through the positioning guide pipe, and the affected side ilium and the uninjured side ilium of the patient are connected, so that positioning and orientation of the channel screw are achieved.

The invention particularly relates to a pelvic fracture external fixation frame fixation iliac crest screw placement guider and a use method thereof. The guider comprises a drilling guide pipe, an auxiliary guide column and a connecting structure. The connecting structure comprises a connecting piece, a first puncture needle and a second puncture needle with the same structure as the first puncture needle; a drilling guide pipe and an auxiliary guide column are fixed to the two ends of the connecting piece correspondingly. One end of each puncture needle is of a pointed cone structure, and the other end of each puncture needle is fixedly installed on one side of the auxiliary guide column. The connecting piece and the two puncture needles are parallel to each other; and the length of the connecting piece is consistent with that of the two puncture needles. The optimal nail feeding point is accurately positioned through the guider, a probe opening method is combined, the Schanz nail is guided to always walk in the cancellous bone between the inner plate and the outer plate of the ilium, and finally the purposes of improving the nail placement accuracy, increasing the fixing strength, reducing complications, shortening the operation time and reducing the medical cost are achieved.

The present application relates to a kind of separated pelvic fixation band and tactile reference early warning system and operating method, belong to the technical field of medical instruments for war trauma first aid, including the quick inflatable pelvic fixation band and tactile reference early warning waistband of quick combination.Tactile reference early warning waistband is equipped with the tactile reference module based on high flow resistance parallel gas path principle, this module includes adjustable tactile membrane and internal damping gas path system, can the initial tension state of the abdomen of wounded person is converted into stable tactile memory reference.Two components are fixed by lateral quick connection buckle.The present application realizes the integration of pelvic fracture pre-hospital care and abdominal tension objective early warning, its all-mechanical, power-free design has very high environmental robustness and easy operation, can effectively solve the problems of uncontrollable fixed pressure and unreliable abdominal monitoring in traditional method, significantly improve the on-site treatment and transport monitoring quality of severe trauma wounded person.

This invention discloses a surgical instrument for closed reduction and minimally invasive fixation of pelvic fractures, belonging to the field of medical device technology. It includes: a reduction frame, consisting of two P-shaped frames made of X-ray-permeable material and connecting rods, connected to a standard orthopedic operating table to form a stable frame surrounding the patient's pelvis; and a controllable push-pull device, employing a bidirectional threaded transmission structure, one end connected to the reduction frame and the other end clamping the bone screw implanted in the pelvis, enabling linear push-pull of the bone screw for precise reduction of the fracture fragments. One of the controllable push-pull devices also integrates an anti-rotation mechanism, reliably preventing the bone screw from rotating during the push-pull process, thus solving the problem of bone screw dislodgement due to internal rotation during reduction in osteoporotic patients. This invention is highly versatile, avoids affecting intraoperative fluoroscopy, achieves multidimensional, precise, and controllable reduction of pelvic fractures, and firmly maintains the reduction until fixation is complete. It is minimally invasive, easy to operate, and significantly improves surgical efficiency and safety.

The utility model discloses a pelvic trauma comprehensive treatment teaching simulation device which comprises a pelvic module and an iliac artery module. The pelvis module is made of a hard material; the pelvis module is composed of a plurality of separated fracture simulation units which are detachably connected together; the separated fracture simulation unit comprises a first unit consisting of sacrum; the iliac artery module comprises an iliac artery system module and a blood vessel intervention training module used in cooperation with the iliac artery system module. The iliac artery system module is of an integrated structure made of a transparent rubber material and comprises an abdominal aorta section, a common iliac artery section, an internal iliac artery section and an external iliac artery section. And the common iliac artery section or the external iliac artery section of the iliac artery system module is detachably connected with the first unit. According to the utility model, multi-type pelvic fracture simulation, multi-system injury collaborative reduction and comprehensive treatment whole-process training can be realized, and systematicness and clinical fitting degree of trauma treatment training can be effectively improved.

The application discloses a kind of pelvic fracture postoperative intestinal function recovery methods based on multi-modal evaluation, it is related to medical postoperative rehabilitation evaluation technical field, including collecting patient postoperative gastrointestinal motility related physiological indexes, pelvic cavity imaging data, clinical manifestation text record and so on multi-modal data, pre-processing is extracted multi-modal evaluation characteristics;Characteristics are input into coevolution network, each evaluation branch parallel processing corresponding modal characteristics, through shared intermediate representation layer completes feature exchange and weight mutual adjustment, combined with the adaptive contribution degree of branch exchange after intermediate representation and own state vector calculation, weighted fusion obtains comprehensive intestinal function recovery state score, compares threshold value and determines recovery stage and matches output rehabilitation intervention suggestion.The method can realize the linkage processing of multi-modal characteristics, dynamically adapt each modal evaluation weight, improve the accuracy of intestinal function recovery evaluation, output and patient recovery stage adapt to rehabilitation intervention scheme.

The invention discloses a man-machine permission allocation method, system and device for pelvic fracture reduction and a medium, and is applied to the technical field of medical robots and man-machine interaction control. The method comprises the steps that feature parameters of all points on a pelvic fracture reduction path are obtained; calculating the comprehensive safety degree and tracking difficulty degree of each point on the path based on the characteristic parameters; the comprehensive safety degree and the tracking difficulty degree are input into a fuzzy logic decision module, and a man-machine control authority fuzzy value is output; the man-machine control permission fuzzy value is processed, and a final control instruction is generated; the control instruction is used for switching between manpower dominant control and machine dominant control; according to the dynamic change of the operation process, the control authority is intelligently distributed between the person and the machine, the accuracy and efficiency of the operation are improved on the premise that the operation safety is ensured, and the operation burden of doctors is relieved.