83results about How to "Guarantee the effect of surgery" patented technology

The invention discloses an individual craniofacial bone piece auxiliary positioning guide plate system and a preparation method thereof. The system comprises a pre-osteotomy guide plate device and a post-osteotomy guide plate device, wherein the pre-osteotomy guide plate device is formed by fixedly connecting a set of reference guide plates and fixed guide plates by pre-osteotomy connecting rods,and the post-osteotomy guide plate device is formed by fixedly connecting another set of reference guide plates and fixed guide plates by post-osteotomy connecting rods. The preparation method comprises the following steps of: firstly, acquiring a three-dimensional model of the preoperative craniofacial bone tissue by three-dimensional reconstruction software; secondly, designing solid models of the pre-osteotomy connecting rods for connecting the reference guide plates and fixed guide plates, wherein the reference guide plates, the fixed guide plates and the solid models of the pre-osteotomyconnecting rods form a solid model of the pre-osteotomy guide plate device; thirdly, designing solid models of post-osteotomy connecting rods for connecting the reference guide plates and fixed guideplates, wherein the reference guide plates, the fixed guide plates and the solid models of the post-osteotomy connecting rods form a solid model of the post-osteotomy guide plate device; and finally,processing the pre-osteotomy guide plate device and the post-osteotomy guide plate device according to the solid models.

The invention discloses a three-dimensional model reconstructing method for keeping a fracture line of a jaw bone. The method is characterized by comprising the following steps that 1, CT data, in accordance with a Dicom protocol, of an injured jaw bone are input; 2, a surface model of the jaw bone is extracted by using a Marching Cube isosurface algorithm; 3, a segmentation algorithm which combines a Gaussian mixture model with Graph Cut is used for rapidly completing segmentation of broken bone blocks and a main bone block; 4, automatic replacement is conducted on the broken bone blocks on the basis of the symmetry, and a complete jaw bone model is obtained by splicing the broken bone blocks and the main bone block; 5, positioning devices which are each composed of a pair of coupling block devices are additionally arranged on the seams of the complete model obtained through splicing; 6, a complete three-dimensional solid model is obtained through assembling according to the positioning devices. By means of the three-dimensional model reconstructing method for keeping the fracture line of the jaw bone, in a jaw bone repairing operation, particularly when chimerism, fixation and repair are conducted between the broken bone blocks and between the broken bone blocks and the main bone block, the fracture line information of the defect parts is kept, so that errors in the operation are reduced, the wounds of a patient are reduced, the process of the operation is accelerated, and the operation effect is guaranteed.

A manufacturing method of a fibula positioning and shaping assisting device comprises the steps that a jaw surface bone model and a fibula model are reconstructed; the parts in need of cutting and cutting paths are determined; cutting is simulated to find out a most suitable backup fibula section model; positioning and shaping guide plate models are obtained; a model of the fibula positioning and shaping assisting device is obtained and the fibula positioning and shaping assisting device is manufactured. The fibula positioning and shaping assisting device manufactured through the manufacturing method of the fibula positioning and shaping assisting device is formed by connecting a plurality of positioning and shaping guide plates, the inner surface of each positioning and shaping guide plate is completely attached with the outer surface of a corresponding fibula section, and a track formed by fixing the adjacent positioning and shaping guide plates end to end according to the break angle is uniform with the installation track of the set fibula on the maxillofacial skeleton. By means of the fibula positioning and shaping assisting device, the cut fibular can be accurately installed into the jaw surface bone according to the ideal operative plan, and the operation effect is guaranteed.

The invention discloses a medical auxiliary instrument. The medical auxiliary instrument comprises a mounting cross beam, supporting rods and L-shaped hooks, wherein one group of supporting rods are symmetrically arranged, an electric telescopic rod is arranged at the bottom of each supporting rod, a vacuum chuck is arranged at the bottom of each electric telescopic rod, the mounting cross beam isarranged above the supporting rods, a pneumatic cylinder is arranged at a middle position of the bottom of the mounting cross beam, an arm placing position is arranged at the output end of the pneumatic cylinder, a threaded hole is formed in each electric telescopic rod, a screw is arranged on each threaded hole, the L-shaped hook is arranged on each screw, an aerator is arranged on each screw, alocating bolt is arranged at the top of one end, close to the L-shaped hook, on each screw, each locating bolt runs through the corresponding screw and extends to the underneath of the screw, a mounting block is arranged on each locating bolt, and an air sac is arranged at the bottom of each mounting block. The medical auxiliary instrument disclosed by the invention has good fixation effect in surgery, and working strength of medical personnel is greatly alleviated.

The invention discloses a passive type infrared light reflection small ball. The passive type infrared light reflection small ball comprises a ball body, a light reflection coating, an installation base inlet, an installation base and an installation frame. The small ball is reasonable in structure and low in manufacturing cost. Compared with an active type infrared light reflection small ball, no infrared light needs to be provided for the small ball through electric power, an assembly composed of the passive type infrared light reflection small balls is small and is not limited by wires, and the passive type infrared light reflection small balls can be flexibly and freely arranged in all positions of surgical instruments. More importantly, the passive type infrared light reflection small ball can not produce infrared light sources to interfere with other surgical instruments. The shape and the position of the assembly composed of the passive type infrared light reflection small balls can be customized according to requirements of doctors, and therefore the visible range of surgical instruments is widened. The invention further provides a use method of the passive type infrared light reflection small ball. The ball body serves as a reference point on surgical instruments, infrared light are transmitted by a navigator and are reflected to the navigator through the ball body, the positions of surgical instruments can be calculated by means of the navigator through combination with the corresponding algorithm, and accuracy is high.

The invention relates to the field of prostate minimally invasive medical equipment, and discloses a prostate particle implantation system based on a collaborative robot and a method thereof, and thesystem comprises an industrial personal computer, an industrial personal computer I/O device, an ultrasonic probe module, an ultrasonic probe sensor, a particle implantation module, a particle implantation sensor, and a control cabinet. The industrial personal computer is used for receiving, processing, storing and sending a control instruction; the industrial personal computer I/O device providesan interaction channel for a doctor and the industrial personal computer; the control cabinet drives the motors of the execution ends to operate through a control bus according to the control instruction; the ultrasonic probe module provides a navigation function; the ultrasonic probe sensor is used for assisting the system in completing preoperative positioning initialization; the particle implantation module is used for completing specific particle implantation operation in an operation; and the particle implantation sensor is used for detecting the stress change of each joint of the collaborative robot. The system can reduce the labor intensity of doctors and the pressure of human resources, guarantees the operation effect, and guarantees the personal safety of patients and doctors through the sensor installed in the system.

The invention relates to a conveying guide wire and a lumen implantation system, the lumen implantation system comprises a lumen implant, a guide tube and a conveying guide wire, the conveying guide wire is movably arranged in the guide tube in a penetrating mode, and the lumen implant is connected to the far end of the conveying guide wire in a detachable mode. The conveying guide wire of the invention comprises a hollow tube and a core wire, the hollow tube is arranged at the near end of the core wire in a sleeving mode to keep relatively static with the core wire in the axial direction, andthe elastic modulus of the hollow tube is larger than that of the core wire, thus the near end of the conveying guide wire has good pushing performance, and the far end of the conveying guide wire has better flexibility and superelasticity. In this way, the conveying guide wire can give consideration to both conveying performance and flexibility at the same time, so that operability is better, and an operation effect can be well guaranteed. Meanwhile, the risk that the conveying guide wire is broken in the using process due to a technical difficulty in splicing different materials at the nearend and the far end is effectively avoided, the technical difficulty degree is reduced, and the operation safety is improved.

The invention discloses an intraoperative protective mirror. The protective mirror comprises an outer lens surface and an inner lens surface, and is characterized in that the outer lens surface and the inner lens surface consist of two arc surfaces; and the outer lens surface and the inner lens surface are connected into a whole to form a bowl-shaped transparent lens body. The invention also discloses an application of the intraoperative protective mirror in the vitrectomy. A method comprises the following steps of: finishing operation preparation, and smearing a corneal protective agent on the corneal surface; placing the intraoperative protective mirror above the corneal protective agent after the corneal protective agent is smeared; and after the contact surface of the intraoperative protective mirror and the corneal protective agent has no bubbles, carrying out the operation. The protective mirror can avoid or reduce the use of a balance liquid and the corneal protective agent, save the operation time, make images more clear in the operation, reduce the operation difficulty and improve the comfort level of the patient.

The invention discloses an adjustable shank supporting traction reduction frame which comprises a guide block connected with a bed body and a vertical supporting rod, wherein a fixed arm is arranged on the supporting rod and connected with one end of a connection arm, the other end of the connection arm is connected with one end a suspension arm, the other end of the suspension arm is connected with a shank supporting frame, the connection arm rotates relative to the fixed arm and the suspension arm, and the shank supporting frame is connected with the suspension arm through a universal ball. A guide plate connection groove, a supporting rod threaded hole, a guide block threaded hole, a supporting rod connection hole and a guide rail groove are formed in the guide block, the supporting rod is connected with the supporting rod connection hole, a guide plate and a guide rail are arranged on the bed body, the guide plate is matched with the guide connection groove, and the guide rail is matched with the guide rail groove. The adjustable shank supporting traction reduction frame can assist the fractured shank to achieve intraoperative closed reduction, the shank can be placed, regulated and fixed easily, comfortableness of shank supporting is good, operations for fixing the inner side or the outer side of the shank can be facilitated, fluoroscopy is not influenced, and operation results can be confirmed by obtaining intraoperative standard fluoroscopic images.

The invention relates to a hemorrhoid stapler, which comprises a nail anvil and a shell, wherein a staple magazine, a nail pusher, a closing mechanism, and a firing mechanism are installed in the shell, and the closing mechanism is used to drive the nail anvil to face the shell Move to form a jaw with the staple cartridge, and the firing mechanism is used to drive the pusher piece to move toward the nail abutment seat to push out the staples in the staple cartridge, and the nail anvil has a conical outer surface , the staple cartridge has an inner cavity for accommodating tissue, the shell is provided with several pull wire holes communicating with the inner cavity corresponding to the staple cartridge, and the shell is also provided with an electric power to drive the closing mechanism and the firing mechanism to work structure. The stapler is equipped with an electric power structure that drives the closing mechanism and the firing mechanism, so as to solve the problem of excessive pulling caused by the vibration of the arm during the excitation process brought by the large closing force, and avoid affecting the butt closure of the anastomotic port and the staple-forming effect‑ The incomplete or excessive extrusion of the nails can ensure the effect of the operation.

The invention relates to an implant, a transcatheter wire locking device and a wire locking method.The implant comprises a shell assembly and a wire winding assembly installed in the shell assembly, a gear assembly is arranged in the wire winding assembly and comprises a single-face gear, a double-face gear and a fixed gear, the single-face gear and the double-face gear form first one-way rotation, and the single-face gear and the double-face gear form second one-way rotation; the fixed gear and the double-sided gear form second one-way rotation, and the rotation directions of the two are opposite; the gear assembly is in sliding connection with the winding assembly through a sliding structure, so that the far end of the winding assembly reciprocates between the single-face gear and the double-face gear. Therefore, after the suture is locked, if it is observed that the current winding degree is too large, the far end of the winding assembly can be driven to slide to the single-face gear, and therefore the current winding degree is adjusted to be small; and then the far end of the winding assembly is driven to slide to the double-sided gear, so that the current winding degree is locked. Therefore, by adopting the design of the scheme, the winding degree can be adjusted in real time after the sewing thread is locked.

The invention discloses a puncture drainage device, and relates to the field of medical instruments. The puncture direction can be adjusted, visceral injuries or blood vessel bleeding is avoided, and the operation effect is ensured. The puncture drainage device comprises a puncture needle and a drainage tube, and the puncture needle is connected with the front end of the drainage tube. Drainage holes are distributed in the needle wall of the puncture needle, a movable joint is arranged at the position, close to the puncture needle, of the front end of the drainage tube, a direction adjusting line penetrates through a tube wall interlayer of the drainage tube, and the front end of the direction adjusting line is connected with the movable joint. The puncture drainage device is mainly used for guiding out hydrops in the body.

The invention relates to a head cushion, in particular to an ophthalmic surgery auxiliary head cushion. The invention provides an ophthalmic surgery auxiliary head cushion which can fix the head of apatient and is convenient for a doctor to adjust the head of the patient. The technical embodiment of the invention is as follows: an ophthalmic surgery auxiliary head cushion comprises a mounting frame, a slide rail, a slider, a wedge block, a bearing seat, a screw, a rocker, a concave cushion plate and the like; A mounting groove is formed on the left side of the bottom of the mounting frame, asliding rail is arranged in the mounting groove, a sliding block is arranged on the sliding rail, a wedge-shaped block is arranged on the top of the sliding block, a threaded hole is arranged on the lower part of the wedge-shaped block, a word hole is arranged on the left wall of the mounting frame, a bearing seat is arranged in the middle of the bottom of the mounting frame, and the bearing seatis located on the right side of the mounting groove. The invention can support the head of the patient through the concave pad and the elastic pad, thereby providing support for the doctor's operation, and the head of the patient can be fixed through the head fixing device, so as to prevent the doctor from influencing the doctor's operation by the head movement of the patient when the doctor performs the operation.

The invention provides a length measuring system of a marking block and a surgical robot system.The length measuring system of the marking block comprises a fixing device used for fixing the marking block and enabling the marking block to do circular motion around a provided axis, when the marking block is fixed to the fixing device, the root of the supporting piece is located on the axis, so that the supporting piece drives the center of the marking body to rotate around the axis. The image shooting device is used for tracking the movement process of the marking block so as to record a plurality of three-dimensional space coordinates formed when the center of the marking body moves; the measuring host is used for determining the length of the marking block according to a plurality of three-dimensional space coordinates formed when the center of the marking body moves and a fitting circle center coordinate of the plurality of three-dimensional space coordinates, the length of the marking block is accurately determined, and therefore the operation effect is guaranteed.

The invention provides a suture fixer for interrupting the suture operation. The invention comprises a straight or arch bottom plate whose one end has a vertical plate which is vertical to the bottom plate and in straight or arch type as bottom plate; thread gripping grooves on said vertical plate while two said grooves are in one unit and there are several said units on the vertical plate; lead inclined surfaces are arranged between the top of two side surfaces of each thread gripping groove and the top surface of vertical plate; the guide rails of parallel bottom and vertical plate are mounted on the bottom plate or vertical plate while these guide rails have knife carrier with thread cutter moving along these guide rails; and a adherence layer on the bottom of bottom plate. Said knife carrier of guide rail can rotate along the axis of guide rail to make the knife carrier vertical or parallel to the bottom plate. And the thread cutter has two opposite blades. The nearby inclined surfaces of thread gripping unit have different colors.

The invention relates to a medical instrument, and discloses a non-surgical auricle malformation orthosis. The orthosis comprises a medical silicone tube, a metal hose and a sutureless adhesive tape, wherein the metal hose is sleeved with the medical silicone tube; and the sutureless adhesive tape is stuck on the periphery of the medical silicone tube. The non-surgical auricle malformation orthosis can be bent and shaped according to a normal auricle, the shape of the orthosis can be readjusted with the improvement of the auricle malformation, the defect of changing dies repeatedly is avoided, the cost is remarkably saved, at the same time, the orthosis can be applied to shaping and fixing of an auricle shape after an operation, and the operation effect is maintained.

The invention discloses a mouth gag for preventing and controlling microstomia deformity caused by scar contracture after burns. The mouth gag comprises two symmetrically arranged mouth opening plates (1) and a hook-and-loop fastener (2), wherein each mouth opening plate (1) consists of a mouth opening plate front end (3) placed in the mouth of a patient, and a mouth opening plate rear end (4) placed outside the mouth of the patient, the end of the mouth opening plate front end (3) is semi-elliptical, and the edge of the mouth opening plate rear end (4) is arc-shaped; the hook surface of the hook-and-loop fastener (2) is fixed to the mouth opening plate rear end (4), and the fur surface of the hook-and-loop fastener (2) is adhered to the hook surface of the hook-and-loop fastener (2). The mouth gag is specially used for preventing and controlling microstomia deformity caused by scar contracture after burns, after being placed in the mouth of the patient, the mouth gag can expand the orbicularis oris musle and the tissue surrounding the oral cavity of the patient, so that the occurrence of microstomia deformity can be prevented.