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965 results about "Internal fixation" patented technology

Internal fixation is an operation in orthopedics that involves the surgical implementation of implants for the purpose of repairing a bone, a concept that dates to the mid-nineteenth century and was made applicable for routine treatment in the mid-twentieth century. An internal fixator may be made of stainless steel, titanium alloy, or cobalt-chrome alloy.

Shape adaptable intramedullary fixation device

PendingUS20250064489A1Internal osteosythesisCannulasPelvic regionPubis symphysis
Implantable devices for fixation of curved bone such as the pelvic ring pubic symphysis and acetabulum, and methods for the use of the devices are disclosed. The implantable devices are convertible between a flexible state and a rigid state, and include an elongate structure having a proximal bone interface, a main body, and a distal bone interface. In a flexible state, the devices may be inserted along, and conform to a curved pathway, and in the rigid state, the devices may support the mechanical loads required to fixate a fracture.
Owner:BRITISH COLUMBIA CANCER AGENCY BRANCH +1

Bone fixation system capable of gradually changing from rigid fixation to axial non-rigid fixation

The present disclosure discloses a limb bone fixation system capable of automatically transforming from AO (Association for Study of Internal Fixation) to BO (Bio-logical Osteosynthesis) elastic fixation. The system includes a bone nail, a bone bridge, and connecting pieces attached to the bone bridge. The bone bridge is divided into a plate-shaped bone bridge and a rod-shaped bone bridge. A gasket made of a rigid degradable biomaterial is added between all connecting pieces at a broken end of one side of a fracture and the bone bridge, which can form rigid fixation for the fracture at initial fixation.
Owner:DONG XIEPING

Steel plate cable bundling and fixing device for fracture around hip joint prosthesis

The invention relates to a hip joint prosthesis peripheral fracture steel plate cable binding and fixing device which comprises a head portion at the near end and a body portion at the far end, and the head portion and the body portion are integrally arranged. The inner surfaces of the head part and the body part are arc-shaped curved surfaces which are tightly attached to the outer surface of the thighbone of a human body; the head is of an anatomical structure matched with the physiological appearance of the outer side face of the greater trochanter of the femur. The body part is of an anatomical structure matched with the physiological shape of a thighbone body at the proximal end of the thighbone; at least one clamping hook is arranged at the near end of the head part, and the clamping hook is in an anatomical radian shape attached to the outer side of the top end of the major trochanter; and the body part is provided with a plurality of lock hole structures. The device is placed on the outer side face of the femur with the vertex of the greater trochanter as a mark; the device is suitable for patients who fail in internal fixation in a proximal femur fracture operation and need revision and suffer from fracture around a femur prosthesis after a joint replacement operation, at least one clamping hook is specially arranged at the proximal end of the head, a fracture block can be grabbed through the clamping hook, and reduction failure is avoided.
Owner:THE FIRST AFFILIATED HOSPITAL OF FUJIAN MEDICAL UNIV +1

Corrugated pipe welding device

The invention relates to the technical field of welding fixing equipment, in particular to a corrugated pipe welding device which comprises a rack, a corrugated pipe fixing mechanism and a flange plate fixing mechanism, the corrugated pipe fixing mechanism is used for fixing a corrugated pipe and comprises a mounting base, an air pump, a heater, an air bag and a plurality of fixing rods, the mounting base is fixedly connected with the rack, the fixing rods are slidably connected with the mounting base, the fixing rods are distributed at intervals in the circumferential direction of the mounting base, an air duct is formed in the center of the mounting base, and the air bag is fixedly connected with the mounting base; through an inner fixing structure of the air bag and the fixing rod, the corrugated pipe can be effectively fixed and prevented from shaking in the welding process, and therefore the welding stability and the welding quality are improved; and hot air is introduced into the air bag to preheat the corrugated pipe, so that the welding stress can be eliminated.
Owner:JIANGSU UNIV OF TECH

An extracorporeal guiding frame for a percutaneous internal fixation and enhanced intramedullary nail around the acetabulum

The present invention relates to an external guiding frame for a percutaneous internal fixation and strengthening intramedullary nail around the acetabulum, belonging to the field of orthopedic medical devices. It includes a universal guiding frame, which consists of an anterior guiding frame and a posterior guiding frame, respectively applicable to the supine and prone positions of the patient. Each universal guiding frame includes an arc-shaped component, which includes a left arc-shaped guide plate, a middle guide plate, and a right arc-shaped guide plate. The two ends of the middle guide plate are detachably connected to the left arc-shaped guide plate and the right arc-shaped guide plate respectively to form the arc-shaped universal guiding frame; a cross-column nail catheter and an anterior column nail catheter are arranged on the left arc-shaped guide plate or the right arc-shaped guide plate; at least one arc-shaped rod is connected to the middle plate, and a posterior column nail catheter is fixed at the end of the arc-shaped rod; when the universal guiding frame is set on the patient, the cross-column nail catheter, the posterior column nail catheter, and the anterior column nail catheter are respectively opposite to the direction between the anterior superior iliac spine and the anterior inferior iliac spine around the patient's pelvis, the ischial tuberosity of the buttocks, and the pubic upper limb of the acetabular apex.
Owner:PEOPLES HOSPITAL PEKING UNIV

Fixing device for processing steel Yankee drying cylinder

The invention discloses a fixing device for steel Yankee dryer processing, and relates to the technical field of Yankee dryer processing. Comprising a fixing seat, a fixing rod is slidably mounted in a middle inner wall cavity of the fixing seat in a limiting manner, and a first gear is mounted at the top edge of the left end of the fixing seat through a motor; the device further comprises a first gear ring, the first gear ring is concentrically and rotationally installed on the left end face of the fixing base through a bearing, the first gear ring is meshed with the first gear, a movable groove is formed in the left side wall of the first gear ring, an installation rod is connected into the movable groove through a first elastic telescopic rod, and an installation column is fixed into a cavity in the bottom of the installation base. The mounting column is sleeved with a positioning roller, and a positioning baffle is fixed to the bottom of the left end of the mounting base. The fixing device for machining the steel Yankee drying cylinder can connect and fix the cylinder body and the cylinder cover, clears are cleaned during circumferential welding, and meanwhile the fixing device is suitable for cylinder bodies of different specifications.
Owner:LIYANG JIANGNAN DRYER MFG

Conveying and screening device applied to fastener detection

The invention relates to the technical field of fastener detection and conveying, in particular to a conveying and screening device applied to fastener detection, which comprises a horizontal main frame, a first electric control conveying belt and a second electric control conveying belt, and an upper-layer internal fixing frame, a middle-layer screening layer and a lower-layer internal fixing frame are fixed in the horizontal main frame. According to the conveying and screening device applied to fastener detection, fasteners on the conveying belt are subjected to rapid optical detection in a full-automatic control mode, additional transfer operation is not needed, and time and labor are saved; the electronic control type material guide disc is adopted to drive the fasteners to rotate on the outer side, follow-up installation, screening and separation of the fasteners cannot be affected, and the detection and screening efficiency is greatly improved; and an electric control rotating mode is adopted to be matched with a first electric control arc-shaped supporting claw and a second electric control arc-shaped supporting claw, fasteners can be placed on the two sides of the modularized external material guiding base, the positions of the fasteners can be rapidly corrected and driven away, and operation is very convenient.
Owner:JIANGSU LINGPAI COMM TECH CO LTD

Internal fixing nail positioning guider with angle

The invention discloses an internal fixing nail positioning guider with an angle. The internal fixing nail positioning guider comprises a transverse holding handle, a protective sleeve, a turning guide sleeve, a flexible drilling device and a flexible driving device, the protective sleeve is fixed in the transverse holding handle; the turning guide sleeve is mounted at the front end of the protective sleeve, and an arc-shaped turning guide sleeve section is arranged at the front end of the turning guide sleeve; the flexible drilling device or the flexible driving device is arranged in the direction-changing guide sleeve from the rear end of the protective sleeve; a flexible rod is arranged between a drill bit and a drill rod of the flexible drilling device, and a flexible rod is arranged between a bone nail connector and a driving rod of the flexible driving device. The bone nail direction-changing guiding fixator is simple and practical in structure, and overcomes the defects that an existing linear bone nail guiding fixator cannot drill holes in a joint bone cavity in a direction-changing mode and cannot drive bone nails into the joint bone cavity in a direction-changing mode.
Owner:PEKING UNIVERSITY THIRD HOSPITAL (THE THIRD CLINICAL MEDICAL SCHOOL OF PEKING UNIVERSITY) +1

Calculus flushing device for urinary surgery and use method of calculus flushing device

The invention belongs to the technical field of medical instruments, particularly relates to a urinary surgery calculus flushing device and a use method thereof, and aims to overcome the defects that in the prior art, calculus cannot be collected, and the water pressure of cleaning fluid cannot be adjusted when the calculus is flushed. A handle is fixedly mounted at the bottom of the mounting box, an outer hose is fixedly mounted on the inner wall of one side of the mounting box, one end of the outer hose extends to the outer side of the mounting box, an inner pipe is fixedly mounted in the outer hose, a downpipe is fixedly mounted on the inner wall of the bottom of the mounting box, and the bottom end of the downpipe extends to the position below the mounting box and is fixedly provided with a threaded sealing cover. When calculi in the urethra of a patient are flushed, stamping of cleaning liquid can be adjusted, so that discomfort is not increased when the patient is flushed, meanwhile, the crushed calculi can be sucked out in time, and the crushed calculi can be prevented from remaining in the urethra of the patient.
Owner:THE FIRST AFFILIATED HOSPITAL OF WENZHOU MEDICAL UNIV

Efficient debridement and negative pressure wound treatment device and system

The invention relates to the technical field of wound treatment devices, and discloses an efficient debridement and negative pressure wound treatment device and system.The efficient debridement and negative pressure wound treatment device comprises a storage cylinder, a suction pipe opening of an air pump is fixedly communicated with the interior of a net cover at the top of the storage cylinder, the air pump is fixedly installed on the outer wall of the storage cylinder, and the side wall of the top of the storage cylinder is fixedly communicated with the other end of a communicating pipe; the other end of the communicating pipe fixedly communicates with the end of the negative pressure cylinder, and the negative pressure cylinder is fixedly installed at the end of the first connecting cylinder in a penetrating mode. The second connecting cylinder is coaxially and fixedly connected to the outer wall of the side, away from the negative pressure cylinder, of the first connecting cylinder. According to the efficient debridement and negative pressure wound treatment device and system, a wound can be automatically cleaned, so that the working efficiency is improved, in the cleaning process, the wound can be retracted, so that the debridement effect is improved, and meanwhile, after debridement is completed, medicine applying operation can be conducted.
Owner:SHANDONG XINLONG MEDICAL SUPPLIES CO LTD

Fixing kit for patella transverse fracture minimally invasive surgery

The utility model provides a fixing suite for a minimally invasive surgery of transverse patella fracture, which belongs to the field of medicine and comprises a steel wire with a needle. One end of the steel wire through hole guider is handheld and can be locked, and the other end of the steel wire through hole guider is provided with a steel wire access hole channel for guiding; the tip and the edge of one end of the anterior patellar dissection guider are sharp, a steel wire channel is arranged in the middle and used for being inserted into anterior patellar soft tissue and bringing out a steel wire, and the other end is handheld. The patella transverse fracture minimally invasive internal fixation device solves the problem that no suitable surgical instrument exists in the patella transverse fracture minimally invasive internal fixation technology, assists in completing patella steel wire conduction, achieves surgical treatment on the premise of minimally invasive surgery, avoids the problems of soft tissue contusion, incision infection, steel wire torsion fracture, too long radiation exposure and the like in the surgical process, and improves the working efficiency. And fracture reduction and fixation are completed on the premise of receiving the lowest limit value of radiation.
Owner:HAICHENG ORTHOPEDIC HOSPITAL

Universal intramedullary nail for pelvis percutaneous internal fixation

The utility model relates to a universal intramedullary nail for pelvis percutaneous internal fixation, which belongs to the technical field of orthopedic medical instruments and is characterized in that the tip of the universal intramedullary nail is a three-blade tip; a hollow channel is formed in the general intramedullary nail, penetrates through the two ends of the general intramedullary nail and is used for allowing a guide needle to penetrate through; threads are arranged on the outer wall of the universal intramedullary nail, and the sparse degree of the threads gradually changes from the nail tail of the universal intramedullary nail to the three-blade tip end to form gradually-changed threads. The general intramedullary nail for pelvic percutaneous internal fixation is widely applied to percutaneous nail placement internal fixation operations and is used for penetrating pelvic bones except for suprapubis ramus and part of iliac, including inferior pubis ramus, ischium, iliac, sacroiliac joints and sacroiliac vertebral bodies.
Owner:PEOPLES HOSPITAL PEKING UNIV

Anti-leakage drainage equipment for clinical operation of general surgery department

The invention relates to the technical field of medical instruments, in particular to anti-leakage drainage equipment for general surgery clinical operations, which comprises a drainage tube, a fixing ring is sleeved on the drainage tube, a positioning component is fixedly connected between the fixing ring and the peripheral skin of a drainage part of a patient, a fixing component is coaxially arranged in the fixing ring, and a first partition plate is fixedly connected in the fixing ring. A second partition plate is further slidably connected into the fixing ring, the interior of the fixing ring is divided into a gel cavity and a triggering cavity by the first partition plate and the second partition plate, pH gel used for triggering a locking mechanism of the fixing assembly through expansion after seepage according to the pH value of seepage is arranged in the gel cavity, and the bottom of the pH gel penetrates through the fixing ring and is fixedly connected with the positioning assembly. By combining the automatic response of the pH gel, the dual induction mechanism of the memory metal and the pressure sensor and the dynamic self-locking function of the cam assembly, the drainage tube is stably clamped and fixed, the drainage tube is effectively prevented from falling off, the infection risk is reduced, and the operation safety is improved.
Owner:THE AFFILIATED HOSPITAL OF GUIZHOU MEDICAL UNIV

Blood collection auxiliary device

The invention discloses a blood collection auxiliary device, and relates to the technical field of medical instruments, the blood collection auxiliary device comprises a tourniquet arm support assembly, the tourniquet arm support assembly comprises a foundation plate and an annular air bag, the foundation plate is provided with a through hole, the annular air bag is fixedly connected in the through hole of the foundation plate, and two first telescopic pipes are symmetrically and fixedly connected to the two sides of the bottom of the foundation plate; the telescopic ends of the two first telescopic pipes are each fixedly connected with a bottom support, the top ends of the two bottom supports are each fixedly communicated with a semi-ring air bag, and a micro air pump is installed on the top face of the foundation plate. The arm of a patient is fixed by the annular air bag and the two semi-ring air bags in a three-point mode, the forearm and the big arm of the patient are wrapped and limited, abut against the semi-ring air bags and are in a bottom supporting state, then the patient cannot freely move the arm, it can be ensured that the problem that in the blood sampling process, a blood sampling needle moves due to movement of the arm of the patient is solved, and the blood sampling efficiency is improved. The comfort of the patient in the blood sampling process and the smoothness of the blood sampling work are ensured.
Owner:JILIN UNIVERSITY

Method, system, medium and equipment for monitoring orthopedic force of spine orthopedic surgery

The invention provides a method, a system, a medium and equipment for monitoring orthopedic force of a spinal orthopedic surgery, and belongs to the technical field of medical instruments. The spine orthopedic system comprises an inner fixing rod and an outer fixing rod, the fixing structure and the locking structure are fixed to the inner fixing rod; the opening structure slides on the outer side wall of the inner fixing rod; the elastic structure is arranged on the outer side wall of the inner fixing rod in a sleeving mode, is located in an interval limited by the locking structure and the opening structure and drives the opening structure to move in the direction away from the locking structure; the standby bolt is used for connecting the opening structure and the inner fixing rod; the sensor module is located at any end or two ends of the elastic structure and used for measuring elastic force data of the elastic structure and motion data of the inner fixing rod; and the wireless communication module is used for transmitting the elastic force data and the motion data to an external receiver. The problems that in the prior art, when a spring fails, overall replacement is needed, and the correction state, the spring function and spring stress cannot be monitored in real time can be solved.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL

System and method for full arch, teeth-only bridge design

A method of making a teeth-only, gingiva-free dental restoration device for a full-arch dental replacement of a replacement arch of a patient may include using a computing device for: receiving a model of a replacement arch of a patient having post-extraction tooth sockets defined by a substantially original interdental and interradicular ridge of the patient; generating a model of a teeth-only, gingiva-free dental restoration device having individual replacement teeth portions each having a tooth axis extending between a gingival section and an incisal / occlusal section; designating individual replacement teeth portions to include abutment holes based on a location in the model of the replacement arch of straight implants secured within corresponding post-extraction tooth sockets; modifying at least one of a location, shape, and size of one or more of the teeth portions; and outputting information regarding the model for fabricating a teeth-only, gingiva-free dental restoration device.
Owner:TRUBRIDGE DENTAL LLC

Limiting and fixing device for limb trauma emergency treatment

The utility model discloses a limiting and fixing device for limb trauma emergency treatment, which is characterized in that an adjusting device and fixing devices are integrally mounted in a fixing frame, and the fixing devices are movably connected to two sides of the adjusting device; clamping and opening of the fixing assembly are adjusted by rotating the adjusting assembly within a certain angle; a sliding groove is formed in one side of the outer wall of each fixing frame, a locking mechanism is arranged at the top end of each sliding groove, a clamping head in sliding fit with each sliding groove is arranged on the other side of each sliding groove, the multiple fixing frames can be spliced through matching of the sliding grooves and the clamping heads, and sliding and locking among the multiple fixing frames are controlled through opening and closing of the locking mechanisms. The fixed clamping plate can fix the injured part by arranging the adjusting bolt, the fixed clamping plate can be opened only by operating the adjusting bolt when dressing change or examination is needed, and the fixed clamping plate is arranged to be an assembled clamping flap, so that the small-area injured part can be accurately clamped and fixed, and the action of the patient is not influenced; and large-area wounds and patients are combined, assembled, clamped and fixed, so that the clamping stability is ensured.
Owner:Zigong Ziliujing District People's Hospital (Zigong Ziliujing District Medical Group Management Service Center)

Bone repair fixing and bundling device and application thereof, and application of magnesium wire as bone repair product

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to a bone repair fixing and bundling device and application thereof and application of magnesium wires as bone repair products, the bone repair fixing and bundling device comprises a bundling belt and a fixing buckle, the bundling belt is formed by at least one magnesium wire, the fixing buckle and the magnesium wires are made of degradable pure magnesium, and the magnesium wires are made of degradable pure magnesium. The strapping tape surrounds a target bone, and the two ends of the strapping tape are tightened and fixed in the fixing buckles; the diameter of each magnesium wire ranges from 0.5 mm to 1.5 mm. The binding device is applied to internal fixation or auxiliary internal fixation of traumatic bone fractures and is combined with an external cortical bone bridge to be applied to bone tumor repair and fixation, and the degradation product in the magnesium degradation process is used for inhibiting tumor recurrence and promoting osteogenesis to promote formation of the external cortical bone bridge. Therefore, the magnesium wire has a great application prospect as a bone repair product.
Owner:GUANGDONG GENERAL HOSPITAL

Finite element analysis-based orthopedic internal fixation screw looseness prediction method and system

The invention relates to the technical field of intelligent medical treatment, in particular to an orthopedic internal fixation screw looseness prediction method and system based on finite element analysis, and the method comprises the steps: analyzing a bone image of a patient in a historical collection period, and determining an abnormal sub-period in the historical collection period according to the displacement of a screw key node and a bone tissue key node; analyzing the number of abnormal sub-periods in the historical acquisition period and an interface slip ratio, and identifying a fastening screw; analyzing the change rate of the interface slip value of the fastening screw in the historical acquisition time period, judging whether the change rate is uniform or not, and outputting a prediction time point according to a change rate uniformity judgment result; according to the method, the adjustment remaining time is determined through processing and analysis according to the predicted time period point, the doctor can select to tighten the screw again or replace the screw according to the specific condition of the patient before the adjustment remaining time is calculated, a clear and scientific time basis is provided for the clinical decision of the doctor, and the timeliness and effectiveness of treatment are improved.
Owner:KUNSHAN TRADITIONAL CHINESE MEDICINE HOSPITAL

First stapling instrument and stapling system

The utility model provides a first suturing instrument and a suturing system.The first suturing instrument comprises a conveying catheter, a fixing piece, a push rod, a puncture needle and an anchoring piece, the fixing piece is connected to the far end of the conveying catheter, an opening and closing arm used for bearing tissue is installed on the fixing piece, and a needle outlet hole used for the puncture needle to penetrate out is formed in the fixing piece; a first hole for a puncture needle to penetrate through is formed in the opening and closing arm; the push rod is arranged in the conveying catheter, is connected with the opening and closing arm and is used for opening or closing the opening and closing arm; the puncture needle is arranged in the conveying catheter; the anchoring piece is arranged at the far end of the puncture needle or connected with the far end of the puncture needle, and a suture is fixedly connected into the anchoring piece. According to the suture instrument, by arranging the conveying catheter, the fixing piece, the push rod, the puncture needle and the anchoring piece connected with the suture, the suture can be easily anchored to the tissue, and the technical problem that the suture instrument cannot anchor the suture to the tissue easily is solved.
Owner:HALOCINCH MEDICAL TECH (SHENZHEN) CO LTD

Rib plate feeding device of pipe section flange rib plate welding machine

The rib plate feeding device of the pipe section flange rib plate welding machine comprises a strip-shaped groove which can be adjusted and fixed in the extending direction of a strip-shaped base, the extending direction of the strip-shaped groove is perpendicular to the strip-shaped base, the top of the strip-shaped groove is open, and a rib plate containing frame is placed at the top of the strip-shaped groove; the rib plate containing frame moves in the extending direction of the strip-shaped groove through a transmission wheel arranged on the edge of the top of the strip-shaped groove, a rib plate feeding motor in transmission connection with the transmission wheel is fixedly arranged in the strip-shaped groove, and a feeding groove moving up and down is formed in the position, corresponding to the position under the straight line where the axis of the conical connector A is located, in the range of the strip-shaped groove. According to the rib plate feeding device of the pipe section flange rib plate welding machine, through the vertical groove structure arranged on the rib plate feeding device and the correspondingly matched rib plate placing frame, a rib plate to be welded, which is placed on the rib plate placing frame in advance, can be automatically fed to the bottom of a flange joint of a pipe section; and automatic spot welding fixation of the spot welding robot is facilitated.
Owner:JIANGSU FLIGHT ELECTRIC EQUIP MFG

Positioning assisting method and device for femoral neck fracture reduction and electronic equipment

PendingCN119139013AReduce the difficulty of resetHigh reset accuracyImage enhancementImage analysis3d imageInternal fixation
The invention provides a positioning auxiliary method and device for femoral neck fracture reduction and electronic equipment, and relates to the technical field of medical treatment, and the method comprises the steps: obtaining three-dimensional image data of a femoral neck fracture part of a patient, and carrying out the image preprocessing of the three-dimensional image data, and obtaining first point cloud data after noise removal; performing feature extraction processing on the first point cloud data through a preset point cloud data segmentation network, determining a local feature corresponding to each pixel point, and determining a target implantation path of the internal fixture according to the local features, the fracture type and the fracture position; second point cloud data of the surgical area in the surgical process are obtained in real time, point cloud registration processing is conducted on the second point cloud data, the second point cloud data coincide with the first point cloud data, the internal fixture is implanted along the target implantation path, and femoral neck fracture reduction is completed. The femoral neck fracture reduction difficulty can be remarkably reduced, the reduction accuracy is improved, and therefore injuries caused in the reduction process are reduced.
Owner:XIN HUA HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Orthopedic surgery risk assessment method and system

The invention relates to the field of orthopedic surgery risk assessment, in particular to an orthopedic surgery risk assessment method and system. The method comprises the following steps: acquiring preoperative data and intra-operative data of an orthopedic surgery of a patient, performing data preprocessing on the preoperative data and the intra-operative data, and extracting bone microstructure spatial features in initial orthopedic surgery data by using a cascade feature extraction network; calculating an association weight of the image data and the biological signal through a cross-modal attention mechanism, and constructing a patient specific skeleton model based on finite element analysis to perform real-time scene simulation on the characteristic orthopedic surgery data; the influence of joint contact stress distribution under different osteotomy angles, a bone implant interface micro-motion threshold after implantation of an internal fixation instrument and hemodynamic changes on a bone healing microenvironment is simulated in real time, complications caused by misoperation are remarkably reduced, and the success rate of an operation is increased.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Internal fixing and auxiliary clamping reservoir pressure steel pipe welding device

The invention discloses an internal fixing auxiliary clamping reservoir pressure steel pipe welding device, and belongs to the technical field of pressure steel pipe welding, the internal fixing auxiliary clamping reservoir pressure steel pipe welding device comprises a rotating pipe, a welding frame, a jacking structure and a pneumatic driving structure, a welding gun is mounted on the lower surface of the upper end of the welding frame, and supporting wheels are distributed on the inner side of the lower end of the welding frame at equal angles; the outer side of a pressure steel pipe is supported through a welding frame and supporting wheels on the welding frame, the two sides of a rotating pipe movably stretch into one ends of limiting rods, the other end of each limiting rod is coaxially connected with a screw, the two screws are provided with supporting structures, the inner side of the pressure steel pipe is supported through the supporting structures, and the pressure steel pipe can be fixed through the supporting structures. The outer side of the rotating pipe is connected with a sleeve through a bearing, a pneumatic driving structure is arranged on the sleeve, and the two ends of the outer side of the sleeve are further connected through a handle rod. According to the pressure steel pipe butt joint device, clamping and fixing can be conducted from the interior of a pressure steel pipe, two to-be-welded pressure steel pipes can be precisely in butt joint, and the welding quality is guaranteed.
Owner:SINOHYDRO ENG BUREAU 4

Internal fixation instrument and treatment instrument

Provided is an internal fixation instrument that is inserted from the pedicle of a vertebral arch into bone cement with which a vertebral body has been filled in advance, and that can be easily removed while maintaining the same level of internal fixation performance as that of a screw. The internal fixation instrument is inserted from the pedicle of a vertebral arch into bone cement with which a vertebral body has been filled, and is provided with a cylindrical shaft and a connection part that is disposed at the distal end of the shaft and that can be connected to a screwdriver, the shaft having a helical groove on the proximal side thereof. More preferably, the internal fixation instrument has a screw thread on the distal end side of the shaft, and the lead of the screw thread and the lead of the groove are set to be equal to each other.
Owner:SPINE CHRONICLE JAPAN CO LTD

Sleeve combined type tension pressurizing internal fixing screw

The invention provides a sleeve combined type tension pressurization internal fixation screw, and belongs to the technical field of medical devices. Comprising an outer screw sleeve, an inner core fixing screw is slidably connected to an inner cavity of the outer screw sleeve, and an arc-shaped sleeve plate is fixedly connected to the middle of the inner cavity of the outer screw sleeve; and the limiting and locking assembly is used for shortening the distance between the outer screw sleeve and the two ends of the fracture, and the limiting and locking assembly is connected with the outer screw sleeve. Through the limiting locking assembly, sliding of the inner core fixing screw is facilitated, the sliding resistance of the inner core fixing screw is reduced, in the state, the inner core fixing screw is in the most stable state, different distances can be selected according to the severity degree of the fracture broken end, and therefore different pressurization effects are changed, and the fracture broken end is more stable. The holding force of the inner core fixing screw at the fracture broken end is greatly improved, and therefore it is ensured that the inner core fixing screw can exert the pressurizing effect on the fracture broken end.
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Bone wax sealing assist device for bone cancer pain model

The invention relates to the technical field of medical instruments, in particular to a bone wax sealing assistor for an osteocarcinoma pain model, which is characterized in that a supporting mechanism is arranged on the outer ring wall of a positioning ring, and a first annular slide rail in the supporting mechanism is fixed on the outer ring wall of the positioning ring; the multiple supporting plates are connected with the first annular sliding rail. The steering mechanism is arranged in the positioning ring; a fixed internal thread pipe in the steering mechanism is arranged in the positioning ring; the fixing mechanism is arranged in the steering mechanism; an adjusting threaded pipe in the fixing mechanism is screwed in a fixed inner threaded pipe through threads; a through hole is formed in the bottom of the adjusting threaded pipe; according to the practical situation of an operation area, an injector can be stably inserted into a needed position, bone wax is used for sealing a needle hole quickly, accurately and effectively, bone wax filling can reach a certain depth, and cancer cells are prevented from overflowing; injectors of different models and sizes can be fixed in the adjusting threaded pipe, the stability of the injectors in the using process is improved, and the using range is wide.
Owner:HUNAN PROVINCIAL TUMOR HOSPITAL

Laparoscope puncture outfit with fixing device

The invention discloses a laparoscope puncture outfit with a fixing device, comprising: an outer sheath structure comprising a puncture seat and a puncture tube arranged at one end of the puncture seat and communicated with the puncture seat; the sheath core structure is used for being inserted into the outer sheath structure; the fixing device is arranged on the outer wall of the puncture tube and comprises a first fixing part, a second fixing part and a third fixing part, the balloon fixing part comprises an inner ring movably arranged on the outer wall of the puncture tube in a sleeving mode and located below the first fixing part and an annular air bag arranged on the outer wall of the inner ring; and the driving part comprises an air bag driving unit and an inner ring driving unit. The balloon fixing part and the first fixing part in the fixing device can make contact with the inner surface wall and the outer surface wall of the abdominal cavity of a patient, meanwhile, the driving part is arranged to drive the annular air bag to expand and then adjust the position of the annular air bag on the outer wall of the puncture tube, it is guaranteed that the puncture tube is stably located at the needed position, and meanwhile the device is conveniently suitable for different patients to operate.
Owner:ANHUI GUOTAI GUORUI MEDICAL TREATMENT TECH CO LTD

Leakage-proof detection equipment for catheter

The invention discloses urethral catheter leakage-proof detection equipment which comprises a fixed bottom plate which is of a plate-shaped structure, is installed at the bottom of the whole equipment and is used for supporting the whole equipment; the lower box body is installed at the top end of the fixed bottom plate, a supporting seat is further integrally installed at the top end of one side of the lower box body, and a lifting mechanism is arranged in the supporting seat and connected with the upper box body; the system further comprises; and the fixing mechanisms are arranged in the lower box body and are arranged outside the two clamping pipes. The invention discloses a leakage-proof detection device for a catheter. The bottom of the whole catheter is very convenient to install, the phenomenon that clamping is not thorough does not occur, meanwhile, during follow-up disassembly, when clamping blocks on the outer fixing mechanism are controlled to be separated from each other, the overall size of the inner fixing mechanism can be reduced again, and the overall size of the inner fixing mechanism is reduced. Therefore, the follow-up dismounting work is very convenient, and the manual mounting efficiency is ensured to be higher.
Owner:JIANGYIN KANGJIE RUBBER PROD CO LTD