16results about How to "Improve surgical precision" patented technology

This invention relates to a titanium alloy artificial joint with a high-toughness, ultra-wear-resistant ceramic coating and its preparation method. The titanium alloy artificial joint includes a titanium alloy artificial joint substrate fabricated by 3D printing. The joint surface of the titanium alloy artificial joint substrate is coated with an alumina-based ceramic coating. The alumina-based ceramic coating is obtained by plasma spraying of a mixed powder of alumina, zirconium oxide, and rare earth oxides, and then polished to a surface roughness Ra of no more than 0.05 μm. The bone-bonding surface of the titanium alloy artificial joint is formed into a porous structure layer by 3D printing. Compared with the prior art, the titanium alloy artificial joint of this invention has excellent wear resistance and toughness, and can be personalized based on precise imaging data of the patient's bones.

This invention discloses an anti-fog and heat-insulating puncture device for thoracoscopic surgery, belonging to the field of medical device technology. Its key technical features include: an outer sheath, with a puncture assembly on its inner wall, the puncture assembly including a puncture needle core that slides through the inner wall of the outer sheath, a needle core handle fixedly connected to the upper end of the puncture needle core, a needle tip fixedly connected to the lower end of the puncture needle core, an outer sheath seat fixedly connected to the upper outer wall of the outer sheath, a fixing handle fixedly connected to the outer wall of the outer sheath seat, and a sealing assembly on the outer wall of the outer sheath seat. This invention achieves heat insulation through a double-layer structure formed by the outer and inner sheaths; gas circulation is formed through the cooperation of the air inlet and outlet holes, effectively expelling fog from the inner wall of the inner sheath and ensuring a clear surgical field; the sealing valve and sealing sleeve achieve internal sealing of the outer sheath to prevent gas leakage; the sealing ring is precisely positioned by positioning pins and positioning holes, and the sealing cap is stably installed by locking blocks and protruding pins, providing double sealing to prevent gas leakage and impurity entry, reducing the risk of infection.

This invention provides an anti-displacement fixator for endoscopic surgery. Through designs including fixed-end directional constraint, multi-axis adjuster for flexible adjustment, positioning pin locking, and adaptable elastic fastening components, the fixed end restricts the endoscope's movement along its central axis via a sleeve. Combined with an elastic strip and fastening nut, temporary intraoperative fixation is achieved to prevent unintended displacement. The positioning pin and arc-shaped block on the ball sleeve can fix single-axis movement during intraoperative observation and pausing, offering convenient operation and reliable locking. The snap-on installation facilitates disassembly, and the elastic sleeve diameter is adjustable to accommodate different types (colonoscopes / gastroscopes) and diameters of endoscopes. This effectively solves problems such as unstable operation, limited adjustment, and poor compatibility in existing endoscopic surgeries, improving surgical precision and safety. This application can reduce surgical manpower, allowing a single surgeon to perform precise operations without needing to use their right hand for support, freeing up their right hand for easier scalpel control, and eliminating the need for another surgeon to hold the endoscope, thus saving the manpower of one surgeon.

This invention proposes a visual human tissue rotary cutting device and its shell opening and closing control method, belonging to the field of shell medical device technology. The visual human tissue rotary cutting device includes a scalpel sheath, a blade, a ductoscope, an electrocoagulation hemostatic needle, a sampling chamber, and a puncture shell. The scalpel sheath is capable of axial feeding movement. The blade is installed in the scalpel sheath. The ductoscope is fixedly installed on the outer wall of the scalpel sheath. The electrocoagulation hemostatic needle is installed on the outer wall of the scalpel sheath and located on the opposite side of the ductoscope. The sampling chamber is connected to the scalpel sheath and an external vacuum device. The puncture shell includes a first half-shell and a second half-shell, which can be connected at their tail ends and open at their front ends, forming a bullet shape when combined. The lesion tissue is removed by rotating the blade, which completes axial cutting with the axial feeding of the scalpel sheath. The ductoscope provides the surgeon with a surgical field, which improves surgical accuracy and reduces recurrence. The electrocoagulation hemostatic needle is used to handle large-scale active bleeding.

The utility model discloses an aneurysm embolism device which comprises a micro catheter, a micro guide wire and a spring ring, the micro guide wire is inserted into a catheter cavity of the micro catheter in a penetrating mode, and the micro guide wire conveys and guides the micro catheter so as to guide the micro catheter to be inserted into an aneurysm. The spring ring is pushed into the aneurysm from a tube cavity of the micro catheter, the embolism device further comprises a flow velocity sensor used for measuring the flow velocity of blood flow in the aneurysm, and the flow velocity sensor is arranged on the micro catheter or the micro guide wire and located at the end, close to the aneurysm, of the micro catheter or the micro guide wire. According to the aneurysm embolization device, in the process of embolizing the spring ring, the blood flow speed in the aneurysm can be monitored through the flow speed sensor, so that a doctor is assisted in judging whether the spring ring needs to be continuously embolized or not and evaluating the placing effect of the spring ring, it is guaranteed that the aneurysm is effectively treated, meanwhile, excessive treatment can be reduced, and the operation accuracy is improved.

The utility model relates to a kind of anti-clogging double-cavity suction tubes, including the suction tube main body with connector, connector is used to connect with negative pressure source;Suction tube main body includes main pipeline and branch pipeline, main pipeline and branch pipeline are communicated with connector, pipeline switching structure is set on main pipeline and / or branch pipeline, pipeline switching structure is used to open and close according to the pressure variation of main pipeline Branch pipeline.This utility model can open branch pipeline in time when main pipeline is blocked, continue to carry out suction operation, avoid suction tube from being blocked and unable to work normally;Without interrupting operation to dredge or replace suction tube in operation due to suction tube being blocked, reduce operation time, reduce patient anesthesia risk, avoid repeatedly operating to destroy sterile environment simultaneously, reduce infection risk, improve operation accuracy.

The utility model discloses an adjustable three-dimensional uterus suspension device, which relates to the technical field of medical instruments and comprises a suspension rope, a head end movable clamp and a tail end movable clamp. A puncture needle is arranged at the head end of the suspension rope; the section a, close to the puncture needle, of the suspension rope is clamped into the head end movable clamp and used for limiting mutual movement between the section a and the head end movable clamp, and the section b, away from the puncture needle, of the suspension rope is clamped into the tail end movable clamp and used for limiting mutual movement between the section b and the tail end movable clamp. Compared with the prior art, the three-dimensional adjusting device has the advantages that three-dimensional accurate adjustment is achieved, multi-plane angle adjustment is supported, and complex operation requirements are met; 2, the operation is convenient: the suspension rope can be released or locked by pressing with a single hand, so that the operation time is saved; 3, quantitative control: the meter mark design directly reflects the adjusting quantity, and the operation precision is improved; 4, the stability is high, the clamping force of the spring piece is strong, and the tension fluctuation is resisted during the operation;

The invention discloses a multi-dimensional adjustable miniature external fixation support, and relates to the technical field of medical instruments. The multi-dimensional adjustable miniature external fixing support comprises a right main body, a first clamping needle assembly, a ball connecting piece, a left main body and a second clamping needle assembly, a sliding groove, a damping groove and a mounting hole are formed in the right main body, an adjusting screw rod is arranged in the mounting hole, a damper is mounted in the damping groove, and the damper is connected with the adjusting screw rod; the first needle clamping assembly penetrates through the sliding groove and then is connected with the adjusting screw rod. The tail end of the sphere connecting piece is arranged at one end of the right main body; a spherical mounting groove is formed in the left main body, and the ball head end of the ball connecting piece is arranged in the spherical mounting groove; and the second needle clamping assembly is arranged on the left main body.

The utility model belongs to the technical field of medical instruments, and relates to a pair of lateral skull base tumor clamping ear forceps which comprises a front handle (1) and a rear handle (2), the rear handle (2) is connected with the rear end of a forceps tube (3), the front handle (1) is connected with the rear end of a push rod (6), the front end of the forceps tube (3) is connected with the rear end of a forceps head (5) through a locking device (4), and the forceps head (5) comprises a fixed forceps body (51), a movable forceps body (52), a fixed forceps sheet (53) and a movable forceps sheet (54). The fixed clamp sheet (53) is fixedly connected with the front end of the fixed clamp body (51), the movable clamp sheet (54) is rotationally connected with the front end of the fixed clamp body (51) and the front end of the movable clamp body (52) through two rotating shafts respectively, and the front end of the push rod (6) is connected with the rear end of the movable clamp body (52). The multi-angle forceps head can be quickly replaced, and the opening direction of the jaw can be randomly adjusted, so that a tumor can be accurately and completely clamped, and the injury to peripheral nerves and blood vessels can be reduced to the greatest extent.

The utility model discloses an appendix support, including leading in device, moving device and support, the movable moving device is arranged in the leading in device, the output of leading in device is provided with the support, the moving device can drive the support to export outward through leading in device, above all, can prevent the component unexpected and hurt that comes out, can carry out the fine adjustment of support to the support design and fit appendix lumen structure, can better fixed, and the device simple operation realizes the single -handed operation of main knife doctor, and the other hand can operate endoscope, need not auxiliary tool, improve operation efficiency and accuracy.

The application discloses a conformable angle-adjustable deep monopolar electrotome and relates to the technical field of medical instruments.The conformable angle-adjustable deep monopolar electrotome comprises a handle mechanism, the handle mechanism comprises an arm body assembly, the arm body assembly comprises a handle body, the tail end of the handle body is fixedly connected with a tail seat, the head end of the handle body is provided with an angle-adjustable connecting assembly, the arm body assembly is connected with a tool bit assembly through the connecting assembly, the upper and lower sides of the handle body are both provided with grooves, the connecting assembly comprises a spherical sleeve in the shape of a spherical shell, a shift groove is formed in the middle of the side wall of the spherical sleeve, a cover pad is fixedly embedded in the shift groove, a spherical inner ball is arranged in the middle of the interior of the spherical sleeve, ball shafts are fixedly connected to the two sides of the middle of the inner ball, the end heads of the ball shafts are movably inserted into the spherical sleeve, a connecting column adapted to the shift groove is fixedly connected to one side of the middle of the inner ball, and the conformable angle-adjustable deep monopolar electrotome is suitable for different anatomical structures and special positions through angle adjustment.

The utility model discloses an implantable electrode assembly and system, the implantable electrode assembly comprises an electrode lead, the electrode lead comprises a stimulation end, a connection end and a middle segment connecting the stimulation end and the connection end; the first end of the core tube is inserted into the inner hole of the connecting end of the electrode wire and is in interference fit with the inner hole wall of the connecting end of the electrode wire to realize sealing, so that tissue fluid is prevented from entering the electrode wire through a gap between the inner hole wall of the connecting end of the electrode wire and the core tube; the handle is detachably installed at the second end, opposite to the first end, of the core tube, the handle and the core tube are connected in a sealed mode, and the tissue fluid is prevented from entering the core tube. According to the implantable electrode assembly and the implantable electrode system, liquid can be prevented from permeating into the inner hole of the electrode, and the internal structure of the electrode is protected.

The embodiment of the application is suitable for the technical field of computer-aided medical treatment and surgical robot, and provides a knee-preserving surgery robot and a control method thereof. The knee-preserving surgery robot comprises: a preoperative planning unit, which is used for determining an osteotomy plane based on a key point of surgery on a three-dimensional model of a patient's skeleton, and planning a correction angle in the case of establishing a target force line; an intraoperative execution unit, which is used for assisting in osteotomy operation according to the osteotomy plane under the assistance of a navigation system, so that the angle after the osteotomy is expanded meets the requirement of the correction angle; and a postoperative evaluation unit, which is used for simulating a postoperative bone image, calculating a force line angle based on the simulated postoperative bone image, and adjusting the correction angle formed by actual osteotomy according to the force line angle. The proximal end and the distal end of the patient's skeleton and the corresponding surgical tools are respectively provided with a tracer, and the navigation system provides position data for the operation performed by the intraoperative execution unit and the postoperative evaluation unit by tracking the position change of the tracer.

The application provides an automatic registration method, a surgical navigation system and a surgical robot system, and the method comprises the following steps: acquiring the number of m registration marker points in a medical image model; acquiring n registration marker points in a world coordinate system; selecting k registration marker points from the model coordinate system and the world coordinate system respectively to perform pairing, calculating a transformation matrix and a registration marker point error under each pairing relationship; and determining a correct point pair pairing relationship according to the registration marker point error under each pairing relationship. The application automatically pairs as many registration marker points in the model coordinate system and the world coordinate system as possible, and automatically determines the correct point pair pairing relationship by calculating and comparing the registration marker point error, so that the registration marker points in the medical model do not need to be one-to-one corresponding to find and collect the marker points, and the work burden of doctors is reduced.

The invention provides a prostate laser enucleation device based on a flexible mechanical arm, which comprises a main knife part, and the main knife part comprises the flexible mechanical arm used for moving between a prostate and an envelope and a laser head used for cutting so as to complete tissue cutting of a target area in an operation; and the auxiliary part comprises a video imaging structure for displaying and a water inlet and outlet structure for cutting and cleaning, and relates to the technical field of prostate surgery. The device comprises a flexible mechanical arm composed of a plurality of knuckles, and a laser head is arranged at the tail end of the flexible mechanical arm and used for laser cutting and separation of tissue between the prostate and the capsule. The device is further provided with a video imaging system, a laser optical fiber access structure and a water inlet and outlet structure, so that the operation precision, safety and operability are improved. By accurately controlling the flexible mechanical arm, the prostate can be effectively cut off especially at the position close to the urethral sphincter, and meanwhile unnecessary damage to surrounding sensitive tissue is avoided.

This invention relates to the field of surgical instrument auxiliary devices, and discloses a magnetic suction laparoscopic surgical instrument fixing device and an adjustable clamping arm. The device includes a base, a guide rail fixedly mounted on the top of the base, and sliding grooves on both sides of the guide rail. A movable block is slidably connected between the two sliding grooves. A type II angle limiting block is fixedly mounted on the top of the movable block, and a support rod is movably connected to the top of the movable block. The support rod and the type II angle limiting block are slidably connected. A support frame is fixedly connected to the top of the movable block, and a second spring is suspended at the bottom of the support frame. A type I angle limiting block is fixedly connected to the bottom of the support rod, and the type I and type II angle limiting blocks abut against each other. This magnetic suction laparoscopic surgical instrument fixing device and adjustable clamping arm allows the surgeon to reactivate the locking state of the support rod, freeing up both hands for surgical incisions and other operations, effectively reducing the workload during surgery and improving surgical efficiency and accuracy.