22 results about "Surgical failure" patented technology

The application provides a meniscus suture system and a method for using the same, which comprises a puncture needle assembly, a depth adjusting part and a pushing assembly; the puncture needle assembly comprises a puncture needle and a puncture needle outer tube, an outer wall of the puncture needle outer tube is provided with a depth limiting protrusion; the depth adjusting part comprises a depth limiting sleeve and a depth limiting groove, the puncture needle is movably penetrated through the depth limiting sleeve, the depth limiting groove is arranged on an inner wall of a tail end of the depth limiting sleeve, and the depth limiting protrusion is clamped into the depth limiting groove to limit the penetration depth of the puncture needle; the pushing assembly comprises a push rod, the push rod moves in the puncture needle to push the implant out of the puncture needle. The application can quickly and accurately adjust the penetration depth of the puncture needle into the meniscus, effectively prevents the meniscus from being injured due to the too large penetration depth of the puncture needle, or causes the operation to fail due to the fact that the puncture needle does not reach the target position at all, and does not have the problems of inaccurate clamping and easy displacement.

The application relates to the technical field of medical devices, in particular to a punching positioner, which comprises a handle and a positioning head, the handle comprises a connecting end and a holding end, the holding end provides a gripping position; the positioning head is connected with the connecting end, a drill bit positioning hole is arranged on the positioning head, and an anti-skid pattern is arranged at the end face of the positioning head which abuts against the part to be punched. In the application, the design of the anti-skid pattern can increase the friction between the positioning head and the part to be drilled of the patient, improve the stability of the positioning drill bit, and reduce the risk of slipping. This helps to avoid surgical complications such as coracoid fracture, thereby reducing the risk of surgical failure.

The application provides a valve leaflet extension device, which comprises a delivery catheter, a first clamping arm, a second clamping arm, an opening and closing rod and a locking assembly, the first clamping arm is fixedly arranged at the distal end of the delivery catheter, the second clamping arm is rotationally connected to the proximal end of the first clamping arm, the opening and closing rod is connected to the proximal end of the second clamping arm and is used for opening or closing the second clamping arm, and the locking assembly comprises a blocking piece and a push rod connected with the blocking piece, and the push rod is used for driving the blocking piece to move to block the opening of the second clamping arm. The valve leaflet extension device of the application is provided with the opening and closing rod and the locking assembly, the push rod drives the blocking piece to move to block the opening of the second clamping arm, and the technical problem that the second clamping arm is pried up and tilted during the puncture process and causes the failure of the operation is solved.

The utility model discloses a guiding device. The guiding device comprises a supporting body, a guider and a locking assembly. Wherein a guide channel is formed in the support main body, and the guide channel is configured to be coaxially arranged with a preformed hole of an intramedullary needle on a preset prosthesis when the support main body is mounted on the preset prosthesis. The guider is detachably arranged in the guide channel in a penetrating mode, a guide hole is formed in the guider, and the guide hole and the guide channel are coaxially arranged. The locking assembly is disposed on the support body, and the locking assembly is configured to lock the support body between a predetermined prosthesis and a human skeleton. The guiding device solves the problem that in the prior art, a screw used for locking the intramedullary needle and the femur cannot be accurately arranged in a reserved mounting hole of the intramedullary needle in a penetrating mode, and therefore a prosthesis replacement operation fails.

The utility model discloses a bone cement injection anchor, and relates to the technical field of medical auxiliary equipment. According to the utility model, through lifting of the positioning column, dismounting of the anchor nail is facilitated, and furthermore, under the action of the positioning column, the situation that the fixing plate and the anchor nail are not easy to pull out or fall off to cause failure of an operation can be avoided; by changing the position of the adjusting column in the positioning seat, the height positions of the sealing gasket and the piston in the medicine storage pipe can be changed, the bone cement storage amount in the medicine storage pipe can be controlled under the action of the sealing gasket, namely, the purpose of controlling the injection amount can be achieved, and after adjustment is completed, the fixing ring, the movable column and the piston at the lower end of the movable column move downwards firstly, and then the injection amount is controlled. The bone cement can be guided into the medicine storage tube through the medicine conveying tube by moving the bone cement upwards, the bone cement in the medicine storage tube can be discharged by moving the bone cement downwards after medicine guiding is completed, the bone cement in the medicine storage tube can be prevented from flowing out of the medicine conveying tube under the action of the one-way valve, and the medicine injection effect can be guaranteed.

Embodiments of the present application provide a method and apparatus for controlling a medical device, and a medical system. The method includes receiving a speech instruction from a sound pickup apparatus, inputting the speech instruction into a deep learning neural network, and, on the basis of the deep learning neural network, outputting an instruction for controlling the medical device, and controlling movement of the medical device according to the instruction. Therefore, by means of AI / ML-based speech control, the medical device can be accurately controlled without assistance of multiple people, which can reduce labor costs, improve efficiency, and reduce the risk of surgery failing.

The utility model belongs to the technical field of medical equipment, particularly relates to an anterior cruciate ligament sounding ruler, and aims to solve the problem of high failure rate of an operation caused by inconvenience in accurate positioning of a bone tunnel position in the prior art, and provides the following scheme: the anterior cruciate ligament sounding ruler comprises a handle; one end of the metal rod is fixedly connected with the handle; the first scale line, the second scale line and the third scale line are all arranged on the outer side of the metal rod, the outer side of the handle is connected with an anti-skid pad, a first bending section is arranged on the metal rod, the angle of the first bending section is 160-170 degrees, a second bending section is arranged on the metal rod, the angle of the second bending section is 90 degrees, and the angle of the third bending section is 90 degrees. According to the bone tunnel positioner, a positioning point of a bone tunnel can be accurately found, then the bone tunnel is formed through the positioner, the bone tunnel positioner is simple in structure and convenient to use, the quality of the bone tunnel is improved, and the operation failure rate is greatly reduced.

The utility model relates to the technical field of ovum retrieval needles, and particularly discloses a double-cavity ovum retrieval needle which comprises a puncture needle and a large handle, a flushing cavity channel and a negative pressure cavity channel are arranged in an inner cavity of the puncture needle, and the large handle is provided with the puncture needle. The large handle is further connected with a flushing catheter and a first negative pressure pipe, the end, close to the large handle, of the flushing catheter is communicated with the flushing cavity, and the end, close to the large handle, of the first negative pressure pipe is communicated with the negative pressure cavity. A test tube plug is arranged at one end, far away from the large handle, of the first negative-pressure tube and is connected with a second negative-pressure tube; a protruding arc part is arranged on one side of the large handle, and a plurality of grooves are formed in the other side of the large handle at intervals. The puncture needle is a blunt needle; the puncture needle is vertically arranged on the side, close to the groove, of the large handle. The problems that in the puncture process of a double-cavity ovum extraction needle, a handle is not easy to hold or the handle slips off from the hand, and then the risk of operation failure is caused are solved. The wound surface of the needle point of the puncture needle is too large, and pain of a patient is caused in the operation process.

This utility model relates to the field of medical devices, specifically to an endoscopic bidirectional grasping forceps, comprising a sleeve and a forceps body. A sliding plate is mounted on the inner wall of the sleeve via a sliding fit. An adjusting rod is mounted on the upper surface of the sliding plate. A superior rod is symmetrically mounted on the bottom of the sliding plate via a pin. A pin is mounted on the bottom of the superior rod, and the forceps body is mounted on the bottom of the pin. A first slider is symmetrically mounted on the upper surface of the sleeve. A superior seat is mounted on the upper surface of the first slider via a sliding fit. A first collar is symmetrically mounted on the upper surface of the superior seat. A first spring rod is mounted on the inner end of the first collar and is inserted into the outer wall of the adjusting rod. A limiting plate is arranged inside the superior seat, and a connecting rod is mounted on the upper surface of the limiting plate. This utility model employs a first spring rod structure to ensure that the forceps head of the forceps body is in a closed state, preventing accidental opening of the forceps head during object removal and thus avoiding surgical failure, thereby improving surgical safety.

The invention discloses a suture locking unit and a knotter. In the suture locking unit, a rigid first extrusion arm is rotatably connected with a mounting pipe along a rotating axis perpendicular to the axial direction of the mounting pipe, so that the first extrusion arm has better structural strength, is not easy to deform, and can keep the precision after being repeatedly used; an elastic second extrusion arm is connected with the first extrusion arm at the position close to the rotating axis, and the second extrusion arm reversely crosses the rotating axis after extending by a certain distance in the direction away from the first direction, so that the second extrusion arm is prolonged, and only small elastic deformation generated by the second extrusion arm exists; the extrusion piece is arranged on the first extrusion arm, so that irreversible elastic deformation of the second extrusion arm is avoided, the second extrusion arm is helped to reset to drive the first extrusion arm to reset, the extrusion piece can be repeatedly used to effectively extrude different locking rings, and the extruded locking rings can effectively lock penetrating sutures. The problem of operation failure caused by separation of the suture from the lock ring is avoided.

The embodiment of the invention provides a driving method and device of medical equipment and a medical system. The method comprises the following steps: receiving a voice instruction from a sound pickup device; inputting the voice instruction into a deep learning neural network, and outputting a driving instruction for driving the medical equipment based on the deep learning neural network; and driving the action of the medical equipment according to the driving instruction. Therefore, through voice control based on AI / ML, driving of the medical equipment can be accurately realized without assistance of multiple persons, the labor cost can be reduced, the efficiency can be improved, and the risk of operation failure can be reduced.

The present application relates to surgical instruments and driving assemblies thereof, the driving assembly comprising an execution driving member, a transmission mechanism, a moving part, an auxiliary rotating part and an instrument box. The instrument box contains the transmission mechanism, the moving part and the auxiliary rotating part. The auxiliary rotating part is coaxially arranged with the moving part, and the auxiliary rotating part is rotatably connected with the moving part around the axis of the two. The execution driving member is used to drive the transmission mechanism to drive the moving part to move along the axial direction, so that the moving part drives the auxiliary rotating part to move along the axial direction. During the movement of the execution rod along the axial direction of the surgical instrument to drive the actuator to perform the surgical operation, even if the moving part rotates, it will not affect the rotation of the actuator, reducing the risk of surgical failure. When assembling the surgical instrument, even if the rotation shaft drives the execution rod to rotate, it will not affect the axial displacement of the moving part, avoiding the risk that the interface position of the execution rod used for docking with the actuator changes, causing the actuator to be difficult to accurately dock.

A support device adapted to support a biological membrane, for example, for use as a regenerative membrane, the support device comprising a support strip in the form of a long strip extending in a length direction, the support strip including a circular arc surface extending in the length direction to support the biological membrane. The support strip supports the biological membrane by the smooth circular arc surface, and gum in the healing period prevents the support strip from being exposed to the bone area to cause surgical failure. The invention also provides a method of using the support device.

The utility model relates to the technical field of ovum retrieval needles, and particularly discloses a single-cavity ovum retrieval needle which comprises a handle, a puncture needle and a first catheter are arranged on the handle, and the first catheter is communicated with the puncture needle. A test tube plug is arranged at the end, away from the handle, of the first catheter and connected with a negative pressure connector through a second catheter. The puncture needle is perpendicular to the handle; the end, away from the puncture needle, of the handle is provided with a concave arc-shaped part, and the end, close to the puncture needle, of the handle is provided with a plurality of protruding pressing handles. The puncture needle and the handle are L-shaped or T-shaped; the problems that in the puncturing process of a traditional single-cavity egg taking needle, a handle is not easy to hold, or the handle slips off from the hand; the risks of operation failure and the like are further caused; meanwhile, ovarian follicles are easily lost in the ovum taking process due to the fact that the ovum taking needle with a single cavity lacks a flushing function.

This application discloses a suture locking unit, a knotter, and a system. In the suture locking unit, a rigid first compression arm is rotatably connected to the mounting tube along a rotation axis perpendicular to the axial direction of the mounting tube. This provides the first compression arm with good structural strength, making it less prone to deformation and maintaining accuracy even after repeated use. An elastic second compression arm is connected to the first compression arm near the rotation axis. The second compression arm extends a certain distance away from the first direction and then crosses the rotation axis in the opposite direction, thus lengthening the second compression arm. Only a small elastic deformation occurs in the second compression arm, preventing irreversible elastic deformation. This facilitates the reset of the second compression arm, which in turn resets the first compression arm. Consequently, the compression element can be reused to effectively compress different locking rings, ensuring that the compressed locking ring effectively locks the passing suture, preventing surgical failure due to suture detachment from the locking ring.

The invention relates to an intraoperative bone steel plate adaptive modeling device, which belongs to the technical field of medical instruments and comprises a sliding connection base, a steel plate heater, a hydraulic induction modeling device, a bone surface information recognizer, a cooling tank, a modeling shielding door and a central controller. According to the intraoperative bone steel plate adaptive modeling device, the recognition structure capable of accurately recognizing the bone surface information of a patient, the rapid and safe electromagnetic heating structure and the stable and accurate modeling structure are arranged at the same time; therefore, the problems that in the prior art, due to the fact that equipment capable of rapidly and accurately conducting heating modeling and rapid cooling disinfection operation on a thick and heavy steel plate in an operating room in an operation is lacked, the bone steel plate can be roughly modeled only through manpower in the operation, manpower is extremely consumed, and the operation fails due to the fact that practice is extremely prone to occurring are solved.

The utility model discloses a drainage tube conveying device and endoscope equipment, and belongs to the technical field of medical instruments.In the drainage tube conveying device, an electrode assembly is connected to the far end of a catheter, and a drainage tube body is arranged on the periphery of the catheter in a relatively movable and sleeving mode; the electrode assembly can be switched between the unfolded state and the contracted state, so that the electrode assembly can establish a channel through target tissue in the unfolded state, and after the drainage tube body arranged on the periphery of the catheter in a sleeving mode is fed into the target tissue, the electrode assembly can be contracted into an inner cavity of the drainage tube body; and the drainage tube body is withdrawn through the inner cavity of the drainage tube body, so that the drainage tube body is left in the target tissue. The electrode and the drainage tube do not need to be operated in a split mode in a traditional operation, exchange of two instruments is avoided, and therefore the problems of tissue fluid leakage and positioning deviation caused by instrument exchange can be avoided, the risk of operation failure is remarkably reduced, and the safety and success rate of the operation are improved.

This invention provides a leaflet lengthening device, including a delivery catheter, a first clamping arm, a second clamping arm, an opening and closing rod, and a locking assembly. The first clamping arm is fixed to the distal end of the delivery catheter, and the second clamping arm is rotatably connected to the proximal end of the first clamping arm. The opening and closing rod is connected to the proximal end of the second clamping arm and is used to open or close the second clamping arm. The locking assembly includes a blocking member and a push rod connected to the blocking member. The push rod is used to drive the blocking member to move to prevent the second clamping arm from opening. The leaflet lengthening device of this invention, by setting the opening and closing rod and the locking assembly, enables the push rod to drive the blocking member to move to prevent the second clamping arm from opening, thereby solving the technical problem of the second clamping arm being stretched open and tilted during puncture, leading to surgical failure.

The invention relates to a double-angle knotting-free barb suture line and a preparation method thereof, and relates to the technical field of medical instruments. The double-angle knotting-free barb suture line comprises a suture needle and a suture line body, and the suture line body comprises a suture line body and a barb structure; the surface of the suture line body is subjected to double-angle cutting to form a barb structure, and the double-angle cutting means that after the suture line body is sheared once on the surface of the suture line body through a shearing tool at a first shearing angle, the shearing tool conducts second-time cutting through a second shearing angle with the first-time shearing tail end as a starting point, and the second-time shearing tail end serves as a second shearing angle. And a barb structure with limited shearing depth, shearing length and shearing density is formed. According to the double-angle knotting-free barb suture line, the tissue grasping force and the barb fixing strength can be effectively increased through double-angle cutting, and the risk of operation failure caused by suture line breakage is reduced.

The utility model discloses an expandable urethra incision knife which comprises a handle assembly, a catheter assembly and a blade assembly. Wherein the handle assembly comprises a first handle and a second handle which are hinged together; the catheter assembly comprises a hollow catheter and a traction piece arranged in the catheter. The blade assembly comprises a tooth-shaped blade and a blade protection piece hinged to the tooth-shaped blade. The tooth-shaped blade is more durable than a common blade, the sharp face is not prone to becoming blunt to affect the cutting effect, the blade assembly is provided with a one-way opening in combination with the blade protection piece, the cutting direction and depth can be conveniently controlled in the operation process, and urethra accidental injury is avoided; the spring assists in controlling the opening force of the first handle and the second handle, and in cooperation with the moving state of the blade assembly, damage of the blade to the endoscope body channel and the urethra can be reduced. According to the technical scheme, the defects that in the prior art, the operation failure rate is high, and the urethrostenosis re-occurrence rate is high are overcome.

The utility model provides a kirschner wire guider, which relates to the technical field of medical instruments and comprises a guider main body, and a guider fixing seat is arranged at one end of the guider main body. By means of the modular design, the guider body can be rapidly replaced with different diameters and length specifications, the requirements of different patients and operation scenes are met, the clamping design of the ball screws enables installation and detachment to be simple and efficient, the flexibility and convenience of operation preparation are greatly improved, and the operation efficiency is improved. The design of the inner hole of the guider body ensures that the kirschner wire is always inserted into the bone along a fixed path, and by combining the groove direction of the grooved screw and the center position alignment structure of the guider body, the accuracy of operation guiding can be remarkably improved, the risk of operation failure caused by deviation is reduced, and the operation safety is improved. The structural design of the bolt and the guide ring provides multiple supports for the guider body, it is ensured that in the using process, the guider body cannot be loosened or deviated due to the influence of external force, and the stability and reliability of the device are further improved.

The application provides an ACL reconstruction positioning assembly and method, the assembly comprising an ACL tibial insertion point locator, an ACL tibial tunnel locator and an ACL femoral insertion point locator which are customized and printed by 3D printing; the method comprising extracting contour data information of a knee joint by CT or nuclear magnetic resonance, constructing a three-dimensional mathematical model of the knee joint, and designing the ACL tibial insertion point locator, the ACL tibial tunnel locator and the ACL femoral insertion point locator according to the three-dimensional mathematical model. The application adopts a three-dimensional reconstructed joint model, and determines each positioning part through the joint model, so that the positioning is accurate and reliable; meanwhile, the length of the ligament can be accurately calculated through the three-dimensional model, so that the risk caused by the ligament being too long or too short is avoided, and conditions are further created for improving the operation quality, reducing the operation failure rate, shortening the treatment time and reducing the treatment cost.