1674results about How to "Improve surgical efficiency" patented technology

An ultrasonic medical probe has an elongate shaft with a head portion having a distal end face oriented at least partially transversely to a longitudinal axis of the shaft. The head portion has a lateral surface extending substantially parallel to the longitudinal axis, the lateral surface being provided with outwardly or radially extending projections. The shaft of the probe is provided with an internal longitudinal channel or bore and at least one ancillary or tributary channel communicating at an inner end with the longitudinal channel or bore and extending to the lateral surface. The ancillary or tributary channel has an outer end disposed in a region about the projections. The projections may be finely configured and distributed so as to form a knurled surface on the head portion.

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

The invention discloses a nut cap of a tubular anastomat, belonging to a medical appliance. A sinking cavity is arranged in the inner end of a cap body and is internally provided with a backstop which is a bulge extending radially from the peripheral wall of the sinking cavity or a bulge extending axially from the bottom surface of the sinking cavity. The nut cap of the tubular anastomat is difficult to fall off from the rear end of an adjusting handle of the tubular anastomat and can improve the use reliability of the tubular anastomat.

An ultrasonic probe includes a shaft having a longitudinal axis and a head disposed at a distal end of the shaft. The head has a cylindrical lateral surface and an end face oriented perpendicularly to the axis. The head has three shaping surfaces at a distal end of the cylindrical surface, each shaping surface extending at an acute angle to the axis. Each of the shaping surfaces intersects or is contiguous with both the cylindrical surface and the end face.

An ultrasonic medical probe comprises an elongate shaft formed integrally with a head portion having a distal end face oriented at least partially transversely to a longitudinal axis of the shaft. The shaft is provided with an internal longitudinal channel or bore extending to the end face. The end face is formed with an indentation communicating with the channel or bore at a distal end thereof, whereby liquid is guided over an extended surface of the end face relative to the channel or bore. The head portion also has a lateral surface extending substantially parallel to the longitudinal axis of the probe. The lateral surface is provided with at least one outwardly or radially extending projection. The projection enables the application of ultrasonic cavitation energy to a tissue surface that is in contact with the lateral or side surface of the probe head.

An ultrasonic probe includes a shaft having a longitudinal axis and a head disposed at a distal end of the shaft. The head has a cylindrical lateral surface and an end face oriented perpendicularly to the axis. The head has three shaping surfaces at a distal end of the cylindrical surface, each shaping surface extending at an acute angle to the axis. Each of the shaping surfaces intersects or is contiguous with both the cylindrical surface and the end face.

An ultrasonic medical probe comprises an elongate shaft formed integrally with a head portion having a distal end face oriented at least partially transversely to a longitudinal axis of the shaft. The shaft is provided with an internal longitudinal channel or bore extending to the end face. The end face is formed with an indentation communicating with the channel or bore at a distal end thereof, whereby liquid is guided over an extended surface of the end face relative to the channel or bore. The head portion also has a lateral surface extending substantially parallel to the longitudinal axis of the probe. The lateral surface is provided with at least one outwardly or radially extending projection. The projection enables the application of ultrasonic cavitation energy to a tissue surface that is in contact with the lateral or side surface of the probe head.

A device for generating composite images of dynamically changing surgical anatomy includes circuitry configured to receive, from an endoscopic imaging device, endoscopic image data. The circuitry is configured to receive, from a tomographic imaging device, intra-operative tomographic image data. The circuitry is configured to receive, from a tracking device, spatial tracking data corresponding to the endoscopic imaging device and the tomographic imaging device. The circuitry is configured to generate real-time dynamically changing composite image data by overlaying, based on the spatial tracking data, the intra-operative tomographic image data on the endoscopic image data. The circuitry is configured to output the composite image data to a display.

A medical manipulator comprises a working unit (10) that performs operations, an operating unit (20) that generates instructions, a drive unit (50) that drives the working unit on the basis of instructions given thereto by the operating unit, a power transmission mechanism (60) for transmitting driving force of the drive unit to the working unit, and a control unit (40) for controlling the power transmission mechanism on the basis of instructions given thereto by the operating unit. The power transmission mechanism includes a first power transmission unit (61) interlocked with the drive unit, and a second power transmission unit (63) interlocked with the working unit and capable of being detachably connected to the first power transmission unit. A back drive torque of the first power transmission unit is larger than a back drive torque of the second power transmission unit.

A bipolar electrosurgical instrument has opposable seal surfaces on its jaws for grasping and sealing vessels and vascular tissue. Inner and outer instrument members allow arcuate motion of the seal surfaces. An open lockbox provides a pivot with lateral support to maintain alignment of the lateral surfaces. Ratchets on the instrument members hold a constant closure force on the tissue during the seal process. A shank portion on each member is tuned to provide an appropriate spring force to hold the seal surfaces together. During surgery, the instrument can be used to grasp and clamp vascular tissue and apply bipolar electrosurgical current through the clamped tissue. In one embodiment, the seal surfaces are partially insulated to prevent a short circuit when the instrument jaws are closed together. In another embodiment, the seal surfaces are removably mounted on the jaws.

An ultrasonic medical treatment device has a probe, a transducer for mechanically vibrating the probe at an ultrasonic frequency, a voltage source for energizing the transducer, and another electrical voltage source for feeding to the probe a high-frequency alternating waveform of limited current and limited voltage to be conducted into a patient through the operative tip of the probe after placement of the operative tip into contact with the patient. The alternating waveform has a current and a voltage so limited as to prevent damage to organic tissues while stimulating nerves to reduce or suppress pain.

The invention discloses a medical grinding cutter. The cutter comprises a knife tube component and a grinding head, wherein the grinding head is mounted at the front end of the knife tube component; the grinding head can be driven for pitching and self-rotation; the tail end of the grinding head in the circumference direction is hinged to an inner knife tube in a transmission manner; a flexible transmission section is positioned at the front end of the inner knife tube and used to be hinged to the tail end of the grinding head, and can transfer torque. According to the invention, the medical grinding cutter adopts a direct hinging structure to transfer the transmission between the inner knife tube and the grinding head, can conduct a pitching motion, and adopts a flexible transmission structure to compensate axial deviation caused by pitching and transmission; the transmission structure is simple, and the transmission chain is shorter, which facilitates stable control, so that the operative efficiency is improved; the medical grinding cutter also adopts a structure capable of adjusting both the pitching and circumferential positions of the grinding head, so that the universal orientation adjustment is realized; the medical grinding cutter has a good adaptation to an operative site and higher precision; the operative process efficiency can be improved; the pain of the patients can be minimized, and meanwhile, the treatment cost can be reduced.

The invention relates to the technical field of medical apparatuses, in particular to a sectional thrombus extraction device and a thrombus extraction method making use of the thrombus extraction device. The sectional thrombus extraction device comprises a vascular thrombus extraction stent and a conveying system which is connected to one end of the vascular thrombus extraction stent, wherein the vascular thrombus extraction stent is of an auto-expansion meshed pipe structure which is formed by mutually connecting a plurality of unit grids; radial clearances are formed in the meshed pipe structure; by virtue of the radial clearances, the meshed pipe structure is divided into a plurality of sectional structures which are sequentially connected, so that the circumstance that a thrombus is divided by excessive meshes is avoided, and subsequently, the relative integrity of the thrombus is maintained, the risk of distal embolization in the case that the thrombus breaks off is reduced and rapid and reliable thrombus extraction is achieved; due to the design of the sectional structure, the softness and conveying performance of the thrombus extraction stent are enhanced, and the thrombus extraction stent can be conveyed to a blood vessel which is relatively thin in distal end; and the sectional meshed stent structure is low in metal coverage rate and relatively low in injury on endangium in a thrombus extraction process, and related complications caused by mechanical thrombus extraction are reduced.

The invention relates to an individuation minimal invasive vertebral pedicle screw entering navigation template and a preparation method of the navigation template. The preparation method of the navigation template includes: reconstituting a three-dimensional model of a target vertebra based on a medical image; conducting the screw entering porous channel virtual analysis design on the three-dimensional model and defining a screw entering porous channel; taking feature points from the three-dimensional model, designing a vertebral pedicle screw entering navigation template prototype and obtaining a navigation template which fully fits for the vertebral body through the Boolean calculation; and manufacturing the navigation template through 3D printing and other processing methods. The individuation minimal invasive vertebral pedicle screw entering navigation template closely fits for the mastoid process and the lamina arcus vertebrae, is high in stability, ensures accurate implanting of the vertebral pedicle screw, avoids direct contact with the spinous process, reduces peeling of the muscle ligament, realizes minimal invasion, is applicable to various situations such as the vertebral distortion and slipping and the rupture of the vertebral pedicle, prevents slipping and distortion during screw entering due to the arrangement of a finger pressing board, and is convenient to operate and low in the requirement for doctors, degreases the operation risk, improves the operation efficiency and reduces the operation cost further.

The invention discloses a six-freedom-degree puncture operation robot which comprises a bottom plate, an XYZ three-axis moving table, an extending rod unit, an alpha beta angle joint module, a six-dimensional force sensor module and a puncture needle feeding module, wherein the XYZ three-axis moving table is fixed on the bottom plate; one end of the extending rod unit is connected with the XYZ three-axis moving table; and the other end of the extending rod unit is sequentially connected with the alpha beta angle joint module, the three-dimensional force sensor module and the puncture needle feeding module. The six-freedom-degree puncture operation robot can replace a doctor to execute puncture in a radiation environment through being guided by X-ray real-time images; the deviation of a target point is tracked in real time by the doctor; remote operation control is used; a needle feeding angle is timely regulated; the precise puncture on the lung parts is realized; the adverse influencecaused by hand trembling of the doctor is eliminated; the flow processes of stepped needle feeding and repeated checking in a conventional operation are omitted; one-step needle feeding is realized;the operation efficiency and the operation precision are improved; and the occurrence probability of complications of pneumothorax, bleeding and the like are reduced.

The invention relates to detachable-mountable arc-shaped precise positioning equipment, which includes a supporting unit, a three-dimensional regulating unit connected to the supporting unit, and a guidance positioning unit. The guidance positioning unit includes an arc-shaped rail, a guide rod, a holder, and positioning meters. A second sliding block is connected to the three-dimensional regulating unit; the arc-shaped rail is arranged and slides on the second sliding block, and can be subjected to in-situ rotation around a vertical axis at any angle; the three-dimensional regulating unit drives the arc-shaped rail to move in three dimensions of up-down, left-right, and front-back dimensions; the guide rod can slide along the arc-shaped rail and moves long a long axial direction of the guide rod; and the holder is arranged on the guide rod for fixing a surgical instrument. There are two positioning meters, and rays sent by the two positioning meters, along with a long axis of the holder, are parallel to or coincide with a radial line of the arc-shaped rail. The three lines are located on a same plane, which is parallel to or coincide with the plane where the arc-shaped rail is located. The three lines intersect at one point.

An artificial blood vessel, a self-elastic blood vessel scaffold and their feeder for the surgical operation of blood vessel are disclosed. Said scaffold is fixed in the artificial blood vessel. Said feeder may be thecal tube type or silk binding type. It is suitable for treating the aortic lesion.

Multispectral digitized images are provided by utilizing 2 or more spectral bands, providing images and information regarding a pigmented or other differentiated tissue sample at differing depths. The images are transformed to enhance morphological patterns characteristic of melanoma, such as the statistical properties of the pigment network, image texture or homogeneity, and the lesion reflectance, in order to provide information about lesion morphology at different depths. The images can also be processed and transformed to extract features such as blood volume saturation, oxygen saturation, or other characteristics that can be identified based on differential reflectance or absorption of light.

The invention relates to a surgical robot system and a surgical instrument position display method. The surgical robot system comprises an image arm, a tool arm, a display unit and a computing unit, wherein the image arm can be used for clamping an endoscope used for collecting image information; the tool arm is a fixed point mechanism and used for clamping a surgical instrument, and the surgical instrument comprises at least one feature point identifying surgical instrument position information; the display unit is connected with the computing unit in a communication mode, and an endoscope coordinate system is arranged at the tail end of the endoscope; the computing unit is used for obtaining coordinate values of the feature points under the endoscope coordinate system according to the forward kinematical equation, obtaining position information of the surgical instrument under the plane of an endoscope camera according to coordinate values and conducting imaging processing on the position information; the display unit receives the position information after imaging processing and displays the position information to improve surgical safety and efficiency.

The invention discloses a screw extractor for an orthopedic surgery. The screw extractor comprises a screw extracting tube, holding tubes, a dilator, holding clamps, conical teeth, tooth clamp convex sections, arc-shaped chucks, a driver bar and a dilating ball joint, wherein the dilator is arranged in the screw extracting tube through limit threads in a screwing manner; the holding tubes are arranged at the outer part of the screw extracting tube through fastening threads; handles are arranged at the outer sides of the upper end of the screw extracting tube, and the limit threads are arranged at the inner side of the upper end of the screw extracting tube; a plurality of holding clamps and holding clamp grooves are arranged at and formed in the lower end of the screw extracting tube; the arc-shaped chucks and the conical teeth are arranged at the lower ends of the corresponding holding clamps; one tooth clamp convex section is arranged at the inner side of each holding clamp; the driver bar is arranged at the lower end of the dilator; the dilating ball joint is arranged in the middle of the dilator; the dilating ball joint is moved by the dilator through the limit threads; the dilating ball joint pushes away the tooth clamp convex sections and drives the holding clamps to dilate; a bone screw cap is clamped and fixed by the plurality of arc-shaped chucks. According to the screw extractor disclosed by the invention, the screw cap is fixed by the arc-shaped chucks and the conical teeth; screws can be quickly and conveniently taken out and are prevented from sliding out of the groove, so that pains of a patient are relieved, and the efficiency of the surgery is improved.

The invention relates to a medical injection and attraction platform, which comprises a main control unit, an injection device, an attraction device and a feedback device. The medical injection and attraction platform comprises the following steps: an injection pump introduces normal saline into human organs; the normal saline is extracted out by a negative pressure pump; pressure in an organ is measured by a pressure sensor, so that when the pressure can reach a pre-set value, the main control unit adjusts the speed of injection and attraction; a satisfactory injection flow can be set by the platform, and the pressure can be also fed back to the platform by a pressure measuring device in a cavity, so as to automatically control and attract the negative pressure, therefore, the pressure in the cavity is maintained within a safety range. According to the invention, the actual pressure in the cavity can be dynamically displayed in real time; safety monitoring and controlling can be conducted to ensure the operative safety; the patients' death event can be avoided during the operative process; operative efficiency can be increased through automatic attraction for removing calculuses.

The invention discloses a minimally invasive vascular intervention surgical robot catheter and guide wire propulsion mechanism. The minimally invasive vascular intervention surgical robot catheter andguide wire propulsion mechanism comprises a displacement platform, a fine adjustment device, a catheter clamping and spin-twisting device and a guide wire clamping and spin-twisting device, wherein the fine adjustment device, the catheter clamping and spin-twisting device and the guide wire clamping and spin-twisting device are sequentially arranged on the displacement platform; the displacementplatform comprises a first displacement workbench and a second displacement workbench, the fine adjustment device and the catheter clamping and spin-twisting device are installed on the first displacement workbench, and the guide wire clamping and spin-twisting device is installed on the second displacement workbench; the first displacement workbench is provided with a catheter displacement mechanism for driving the catheter clamping and spin-twisting device to move and a platform displacement mechanism for driving the second displacement workbench to move, and the second displacement workbench is provided with the guide wire displacement mechanism for driving the guide wire clamping and spin-twisting device to move. The catheter displacement mechanism, the platform displacement mechanismand the guide wire displacement mechanism can move synchronously or independently, so that synchronous or independent delivery of catheters and / or guide wires into blood vessels can be facilitated.

The invention discloses a lower limb traction device for an intramedullary nail surgery. The lower limb traction device includes a bottom beam, a shank support plate, a thigh backup plate, a sliding block, a traction needle, a traction bow and a pulling mechanism, the sliding block is installed on an axial sliding channel on the bottom beam and provided with sliding block locking screws, the shanksupport plate and the thigh backup plate are hinged in a Chinese character 'ren' shape, the lower end of the thigh backup plate is rotatably connected with the head end of the bottom beam, the lowerend of the shank support plate is rotatably connected with the sliding block, thighs and shanks of a patient respectively abut against the upper part of the thigh backup plate and the upper part of the shank support plate, the traction needle penetrates through the far-end of an anklebone or a shin bone of the patient and is connected between the two ends of the traction bow, and the bow back of the traction bow is connected with the tail end of the bottom beam through the pulling mechanism. According to the lower limb traction device, the patient can be kept in the state of curved leg, reliable traction of the shin bone of the patient can be achieved, all parts are not higher than lower limbs of the patient, and surgery operation is not affected; and according to the lower limb traction device, smooth operation of the intramedullary nail implantation surgery of a thigh bone and the shin bone can be ensured, and the surgical quality and the surgical efficiency are improved.

The embodiment of the invention provides a total knee arthroplasty preoperative planning method and device, and the method comprises the steps: obtaining a knee joint X-ray film image, and determining the real size of the knee joint X-ray film image; inputting the knee joint X-ray film image into a neural network identification model for identification, and determining key points and key axes; determining femur size parameters and tibia size parameters based on the key points and the key axes; determining types and models of a thighbone prosthesis and a tibia prosthesis based on the thighbone size parameter and the tibia size parameter; and based on the key axis, the type and the model of the femoral prosthesis and the type and the model of the tibia prosthesis, determining placement positions and placement angles corresponding to the femoral prosthesis and the tibia prosthesis. Therefore, according to the embodiment of the invention, the cost can be saved, the randomness of manual measurement is avoided, and an important reference function is provided for calculation of various parameters and placement of the prosthesis, so that the dependence on a surgeon is reduced.

A laparoscope lens washing-drying device comprises a sleeve, a washing tube, a drying component, a connecting piece and a handle, wherein the nominal dimensions of the inner diameter of the sleeve and the outer diameter of the laparoscope are the same and the sleeve and the laparoscope are in movable fit, two through holes used for mounting the washing tube and the drying component are arranged in the wall of the sleeve, an arc groove is arranged at the rear end of the sleeve, a flushing liquor outlet is arranged on the side wall at the front end of the flushing tube, a flushing liquor control switch is arranged on the side wall at the rear end of the flushing tube, the drying component is a pipe fitting provided with a water sucking sponge, an opening for introducing the flushing liquor into the water sucking sponge is arranged on the side wall at the front end of the pipe fitting, the front end of the flushing tube is inserted in the through hole for mounting the flushing tube on the wall of the sleeve, the front end of the pipe fitting provided with the water sucking sponge is inserted in the through hole for mounting the drying component on the wall of the sleeve, one end of the connecting piece is connected with the rear end part section of the flushing tube, the other end of the connecting piece is connected with the rear end part section of the pipe fitting provided with the water sucking sponge, and the handle is arranged on the connecting piece.