2438results about "Bone drill guides" patented technology

The invention provides a unicompartmental knee arthroplasty robot navigation and positioning system and method. The system comprises a preoperative planning module, a positioning and navigation module and a mechanical arm control module. The preoperative planning module is used for carrying out knee joint segmentation and reconstruction according to the obtained knee joint medical image, carrying out preoperative planning and determining a unicompartmental knee arthroplasty scheme; the positioning navigation module is used for registering the intraoperative solid knee joint and the preoperative knee joint three-dimensional model according to the navigator and the tracer, and tracking the poses of the osteotomy tool and the solid knee joint in real time; and the mechanical arm control module is used for planning a motion path of the mechanical arm and controlling the mechanical arm to execute the motion path. In this way, the mechanical arm can be controlled to assist in completing the osteotomy operation of unicompartmental knee arthroplasty in a preoperative planning and intraoperative optical navigation mode, and the problems that the operation level is uneven and the operation effect is not expected due to different individuals in the current manual operation are solved.

A dynamic reference base (DRB) and associated method are provided for rigidly affixing an array frame to bone for use in navigated or robotic surgery. The DRB includes a bridge element that includes a connecting rod having a distal end and a proximal end; a clamp coupled to the distal end of the connecting rod; a first and a second pin guide extending distally from the clamp; a locking nut disposed on the clamp; and a clutch coupled to the proximal end of the connecting rod, the clutch being adapted to couple to the array frame. The DRB also includes the array frame, which is couplable to the clutch, and is adapted to include a plurality of tracking markers disposed thereon.

The invention discloses a thoracoscope minimally invasive cardiac surgery navigation system based on multi-modal image fusion, and the system comprises the steps: constructing a 5D heart digital twin containing an anatomical structure, a soft tissue boundary, metabolic activity and electrophysiological information through fusing preoperative CT, MRI, PET and intraoperative ultrasonic images; real-time dynamic registration is realized by using an electrocardio gating driven biomechanical model; superposing the multi-color coding navigation information to the visual field of the thoracoscope through a wavelength selection type spectroscope; a dynamic risk scoring model is constructed based on the distance, the speed and the tissue vulnerability, and three-level grading intervention is triggered; a miniature force feedback actuator is integrated to realize closed-loop control; and pre-operation virtual drilling and post-operation federal learning optimization are supported. The system remarkably improves the surgical precision and safety, and is suitable for high-difficulty heart minimally invasive surgeries such as mitral valve repair and atrial fibrillation ablation.

The present application relates to a kind of snare cutting knives for endoscope, including proximal handle, tube body assembly, cutting assembly and limiting component;Proximal handle is equipped with limiting sliding slot;The proximal end of tube body assembly is connected with proximal handle, and the distal end of tube body assembly is equipped with insulating protection tube;Cutting assembly includes cutting ring and cutting head, and cutting head is set to the distal end of cutting ring;Limiting component includes sliding part and limiting control wire, sliding part is slidably arranged in limiting sliding slot, and the proximal end of limiting control wire is fixedly connected with sliding part, and sliding part is used to drive limiting control wire axial movement;When limiting control wire moves to the distal end of insulating protection tube, cutting head and insulating protection tube abut each other and are fixed;When limiting control wire exits insulating protection tube, cutting head can continue to move relative to insulating protection tube.

A cannula system and method for tissue repair includes a cannula defining a central lumen and a divider removably coupled to the cannula. The divider has a divider shaft to separate the central lumen into at least two discrete working channels.

An intracorporeal robot (1) for deployment in a body tract, comprising: - a permanent magnet constituting an effector magnet (2) configured to be guided by an extracorporeal actuating magnet (105), and - a medical device (3) coupled to the effector magnet, the medical device comprising a shape memory structure (4) configured for tetherless actuation by an extracorporeal shape memory actuator (105).

The negative pressure suction sheath comprises a sheath tube, a negative pressure connector and an expander, the negative pressure connector comprises a main channel cavity and a negative pressure suction channel cavity located on one side of the main channel cavity, the near end of the sheath tube is connected with the far end of the main channel cavity, and the expander is inserted from the near end of the main channel cavity and extends out of the far end of the sheath tube. The main channel cavity is detachably connected with the main channel cavity; a side channel opening is formed in one side of the main channel cavity, and the negative pressure suction channel cavity communicates with the side channel opening. The cavity wall of the main channel cavity is further provided with a pressure adjusting opening, the pressure adjusting opening corresponds to the side channel opening or is located at the end, away from the sheathing canal, of the side channel opening, the negative pressure in the sheathing canal can be adjusted by adjusting the opening size of the pressure adjusting opening, and therefore an operator does not need to leave to adjust the negative pressure device to adjust the suction force in the sheathing canal. The negative pressure in the sheathing canal can be adjusted only by adjusting the size of the pressure adjusting opening in the handheld negative pressure connector.

The embodiments of the present specification provide a clip device. The clip device comprises a sheath, a clip arm and a receiving tube, the receiving tube is releasably connected with the sheath, the clip arm comprises at least two clamping parts, the proximal ends of the at least two clamping parts are movably arranged in the receiving tube, the clip arm is opened when the clip arm moves distally relative to the receiving tube, the clip arm is closed when the clip arm moves proximally relative to the receiving tube, and the receiving tube is further used for locking the clip arm.

The utility model discloses a hand-operated wrench assembly, a hand-operated knife return device and an electric anastomat, the hand-operated wrench assembly comprises a hand-operated wrench handle, a hand-operated wrench shaft sleeve and a hand-operated wrench rotating shaft, and the hand-operated knife return device comprises a hand-operated wrench assembly, a knife return gear shaft, a knife return transmission gear, a motor gear and a rack. The tool retracting gear shaft and the tool retracting transmission gear can be driven to move upwards by rotating the manual wrench assembly, the tool retracting transmission gear is separated from the motor gear, the rack can be driven to retract through the tool retracting transmission gear by continuously rotating the manual wrench assembly, manual tool retracting is achieved, and the electric anastomat comprises a manual tool returning device. By means of the mode, when the electric gear is rotated upwards through the lower half section of the wrench assembly, the middle section of the wrench is kept static, the tool retracting transmission gear can be easily pulled out, the wrench is further used as a torsion input tool after being pulled out, manual tool retracting is achieved, operation difficulty and failure risks are reduced, large torque is generated with small force, and the tool retracting transmission gear can be pulled out easily. And rapid manual tool retracting is achieved.

A system for robot-assisted surgery includes a surgical robot having a robotic arm, an end effector coupled to the robotic arm, wherein the end effector is adapted to receive, translate, and orient a navigated surgical instrument; a camera tracking system adapted to intra-operatively track a pose of the navigated surgical instrument relative to a defined coordinate system; and a computer platform including a processor and a memory. In embodiments, the computer platform operative to display to a user an image of a target location on the patient and the pose of the navigated surgical instrument; and selectively control translation and orientation of the navigated surgical instrument based on a defined operational mode, to perform a surgical process under user control that comprises one or more of: reaming an acetabulum of the patient to a planned center of an acetabular prosthesis, or positioning the acetabular prosthesis in the reamed acetabulum.

The invention discloses a shapeable surgical instrument with a locking device, relates to the technical field of medical instruments, and is particularly suitable for single-port endoscopic surgery. The device comprises an outer rod assembly, an inner rod assembly and a handle assembly, the outer rod can be shaped into any continuous space curve by hands and keep the shape, and the problems that a traditional straight rod instrument cannot reach a narrow operation area, and a pre-bending instrument cannot be shaped secondarily are solved. The inner rod is a flexible force transmission element, the far end is connected with the tong head assembly, and the near end is connected with the handle assembly through a detachable locking device. The locking device drives a radial movable block (a sphere or a cylinder) to clamp the inner rod through an axial movable block, so that quick disassembly and assembly are realized; and the tong head can be synchronously driven to rotate (through the rotating wheel) and open and close (through the rear handle) in cooperation with the handle assembly. According to the design, the instrument is divided into three independent parts, namely the handle, the outer rod and the inner rod, an inner hole of the outer rod is thoroughly exposed, the problem that postoperative cleaning and sterilization are not thorough is solved, and the infection risk is reduced.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a large forward slot having an adjustable knife blade guide pressure plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

The invention relates to an endoscope anastomat with a percussion protection mechanism, a main body is the endoscope anastomat, the far end of the endoscope anastomat is provided with a fixed part and a rotating part, and the rotating part is pivoted with the fixed part; a cutting knife group is also arranged in the endoscope anastomat; the rotating part is a nail propping seat and the fixed part is a nail bin seat, or the rotating part is a nail bin seat and the fixed part is a nail propping seat; a nail bin assembly detachably connected with the nail bin base is arranged on the nail bin base. A nail pushing block which slides forwards and backwards is arranged in the nail bin assembly; the nail pushing block is provided with a limiting part, and when the nail pushing block is located at the initial position, the limiting part extends out of the near end of the nail bin assembly. And a pushing piece is arranged between the rotating part and the fixed part, and the pushing piece always keeps pushing force for pushing towards the direction of the limiting part at the initial position. The nail bin protection device has the beneficial effects that a protection mechanism for an empty nail bin assembly or a protection mechanism for a used nail bin assembly is realized, and potential safety hazards caused by misoperation in actual operation of an operator are solved.

The invention relates to the technical field of medical instruments, discloses a surgical instrument, and particularly relates to a shapeable surgical instrument suitable for single-port endoscopic surgery, which comprises an inner rod assembly, an outer rod assembly and a handle assembly. The outer rod assembly is made of annealed metal (such as pure copper or copper alloy), can be shaped by hands and is kept in a bent form; the inner rod is a nickel-titanium alloy multifilament or a stranded rope, and low-resistance rotation in a bending state is achieved. The handle rotating wheel drives the inner rod to rotate and is matched with the axial push-pull of the rear handle, so that the 360-degree real-time angle adjustment and opening and closing actions of the working part (forceps piece / scissors) are controlled by a single hand, and the forceps piece / scissors do not need to be taken out of a body. The problems that a traditional straight rod instrument cannot reach a narrow area, a pre-bending instrument cannot be adjusted in an operation, and an existing shaping instrument needs in-vitro angle adjustment of two hands are solved, the operation efficiency is improved, and the cleaning and sterilizing time is shortened.

Surgical instruments, systems, and methods for performing an osteotomy are disclosed herein. A surgical system includes a body with a distal end, a proximal end, a first surface, and a second surface. The surgical system can include cutting blades positioned on the first surface and / or the second surface. The surgical system can include columns of cutting blades positioned on the first surface and / or the second surface. The surgical system can include rows of cutting blades positioned on the first surface and / or the second surface.

The invention discloses a minimally invasive surgical instrument, and belongs to the technical field of medical instruments, the minimally invasive surgical instrument comprises a tail end tool, an operating part, a power transmission part and a connecting part, the connecting part comprises a linear part connected with the tail end tool, a bending part connected with the operating part and a spherical pair mechanism used for connecting the linear part and the bending part; the inner side of the spherical pair mechanism is provided with an inner path for smooth transition of a jaw wire, the spherical pair mechanism is provided with a rotary limiting shaft and a locking assembly, the rotary limiting shaft is configured to enable the bent part to do pitching rotation action relative to the linear part, the locking assembly comprises a locking unit and a control unit, and the locking unit is configured to provide locking force for the spherical pair mechanism. The control unit is a locking wire for connecting the locking unit and the locking operation part, and the locking operation part is reversely interlocked with the spherical pair mechanism. By adjusting the angle between the linear part and the bent part, the wrist of a doctor is located at a comfortable moving position, so that the flexibility of the wrist in the operation process is improved, and the fatigue feeling of the doctor is reduced.

A patella drill guide includes a head having a convexly curved outer surface. Cylindrical channels extend through the head. The drill guide also includes collar having an inner surface that defines a concavity corresponding in shape to the convexly curved outer surface. The inner surface of the collar is fitted to the outer surface of the head to define an articular joint.

A steerable arm for use in an endoscopic surgical procedure. The steerable arm is cut from a nitinol tube to provide flexibility and elasticity by a structure formed by cutting the tube. Typically, the cut tube includes a helical coil whose annuluses contact at one lateral side of the tube and the tube bends to separate the annuluses at the other lateral side. The material from which the tube is made is capable of maintaining memory for bending. This provides bias for restoring the tube to a bent state whenever the force causing the tube to bend is removed.

The present application is directed a Joint Revision Surgery Apparatus which includes a surgical knife blade guide block which has a plurality of rearward blade guide slots, a central cavity and a plurality of guide slots having a two-way adjustable L-shaped guide plate. The surgical knife blade guide block central cavity houses a stem trunnion securing member and is positioned over the trunnion end of the existing prosthesis to be removed and secured to the prothesis. The guide blade block is secured to the trunnion of the prosthesis to be extracted using a stem trunnion securing member housed within the guide block. Straight, curved and compound curved knife blades are guided by the blade guide slots to cut the prothesis free. The Joint Revision Surgery Apparatus facilitates rapid, efficient and complete removal of an existing prosthesis during joint revision surgery, and significantly increases positive medical outcomes for joint revision procedures.

According to one example, a for revision knee arthroplasty is disclosed. According to this example, the method can include shaping a bone of a patient to create one or more recesses therein, selecting a stem provisional, disposing the stem provisional within the one or more recesses, and assembling in vivo the stem provisional with both a first provisional component configured to simulate a shape of one of a tibial tray implant or a femoral implant and a second provisional component configured to simulate a shape of at least one of a sleeve component, a cone component or a keel component of an implant.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device, a reference sensor device, and at least one orthopedic fixture. The surgical orientation device, reference sensor device, and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, or otherwise to assist in an orthopedic procedure(s).

The utility model provides an endoscope clamping type arc-shaped needle puncture device, which is characterized in that a clamping control piece controls a matching space of a locking piece to be tightened, so that the locking piece is fixedly connected with an arc-shaped suture needle; the rotating control piece controls the connecting piece to rotate relative to the mounting frame from the initial position, and the connecting piece drives the arc-shaped suture needle to rotate relative to the shell so that the arc-shaped suture needle can penetrate through the mucosal tissue of the human body. After the connecting piece moves to the final position, reverse operation is carried out to enable the connecting piece to return to the initial position, and the operation is repeated for multiple times so that the arc-shaped suture needle can repeatedly rotate by 360 degrees to suture the mucosal tissue of the human body; due to the fact that the locking piece can be fixed to any position of the arc-shaped suture needle, the arc-shaped suture needle can be driven to rotate by any angle, the precision requirement for matching between the locking piece and the arc-shaped suture needle is lowered, and when the arc-shaped suture needle punctures a hard human mucosa tissue and is blocked or the rotating stroke is not enough, the arc-shaped suture needle can be driven to rotate by any angle. The locking piece can timely adjust the fixed position point so as to provide enough puncture force and rotation stroke for the arc-shaped suture needle.

Devices, systems, and methods for detecting unexpected movement of a surgical instrument during a robot-assisted surgical procedure are provided. The surgical robot system may be configured to measure forces and torques experienced by the surgical instrument during the surgical procedure and determine if the forces and torques are within an acceptable range. The robot system is further configured to notify the user of the presence of the unexpected movement.

The invention relates to the technical field of medical instruments, and particularly discloses an ankle arthroscope traction device convenient to install, comprising a traction frame used for traction and stretching of an ankle joint; the device further comprises a positioning supporting base. The positioning support base limits the position of the traction frame; the detection mechanism is installed in the positioning supporting base and detects the thickness degree of the middle of the shank of the patient before traction of the ankle joint of the patient; according to the detection mechanism, when the rotary detection roller rotates, the cam rotates synchronously, the eccentric contour of the cam pushes the displacement sensing plate to slide in the sliding rail in the positioning supporting base, and the first reset spring provides reset force. A protruding structure at the bottom of the displacement sensing plate accurately acts on the pressure sensing air bag, the pressure sensing air bag is connected with the elastic reset element through the connecting pipe air guide pipe, displacement is converted into deformation of the elastic reset element, then the displacement transmission rod is driven to move, and transmission of physical signals is completed.

A biodegradable, fiber-reinforced orthopedic staple for use in fixation of tissue and bone to restore anatomical relationships. The staple comprises a biocomposite composition including a bioabsorbable polymer and reinforcing mineral fibers. The staple further comprises a bridge portion attached to two or more shoulders, each of which is attached to a leg. The mineral fibers have at least two different lengths.

An instrument system includes a first cut guide and an actuation instrument. The actuation instrument includes an upper portion having a handle and a first cannulation, and a lower portion releasably couplable with the upper portion. The lower portion includes a shaft, a second cannulation, wherein the second cannulation is coaxial and in fluid communication with the first cannulation, and a paddle configured to abut a resected surface of a first bone. The instrument system also includes a compression mechanism releasably couplable with the lower portion, the compression assembly couplable with the first bone and a second bone The compression assembly includes an actuator configured to bias at least one of the first bone and the second bone toward the other of the first bone and the second bone. A method for using the instrument system is also disclosed herein.

Instruments, devices, systems and methods for maintaining, correcting and / or fusing joint deformities are disclosed. Guide systems including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including a body, a first alignment member coupled to and extending away from a superior surface of the body, and a second alignment member coupled to and extending away from an inferior surface of the body. Methods of assembling and using the osteotomy guides and systems for maintaining, correcting and / or fusing joint deformities are also disclosed.

Systems and methods for joint replacement are provided. The systems and methods include a surgical orientation device and at least one orthopedic fixture. The surgical orientation device and orthopedic fixtures can be used to locate the orientation of an axis in the body, to adjust an orientation of a cutting plane or planes along a bony surface, to distract a joint, or to otherwise assist in an orthopedic procedure or procedures.

A method for predicting a tool alignment, the method comprising: obtaining, by a computing system, a first point cloud representing one or more bones of a patient; applying, by the computing system, a point cloud neural network to generate a second point cloud based on the first point cloud, the second point cloud, comprising points indicating the tool alignment; and determining, by the computing system, the tool alignment based on the points indicating the tool alignment.