106 results about "Non invasive surgery" patented technology

In one embodiment of the invention, an apparatus for performing surgical procedures is disclosed including a flexible entry guide tube, and a first steering device. The flexible entry guide tube has one or more lumens extending along its length from a proximal end to substantially at or near a distal end. At least one of the one or more lumens is an instrument lumen with open ends to receive a flexible shaft of a surgical tool to perform surgery near the distal end of the flexible entry guide tube. The first steering device is insertable into the instrument lumen to shape the flexible entry guide tube as it is inserted through an opening in a body and along a path towards a surgical site. The apparatus may further include a flexible locking device to couple to the flexible entry guide tube and selectively rigidize the flexible entry guide tube to hold its shape. The flexible entry guide tube may be steered by remote control with one or more actuators.

An intramedullary femoral broach aligns two instruments. A femoral neck resector guide slides over the broach and centers on the patient's femoral head to determine the height and angular rotation of resection. A circular ring of the head and cutting arms assure the system will fit any femur. A template is applied to the femoral broach and seats itself against the buttress of the broach locking it into place. The broach is then reinserted into the intramedullary canal. When the template reaches the greater trochanter the sizer is adjusted to the rotational anteversion of the canal. The handle of the femoral broach is struck with a mallet until the template is imbedded into the proximal femoral neck intramedullary bone. A retractor facilitates reaming of the acetabulum through a small anterior incision. A proximal portion digs into the bone of the superior acetabulum to allow for retraction of soft tissues.

A surgical ligation clip capable of remote deployment through a catheter.

Robotic system for assisting in minimally-invasive surgery, which can position a surgical instrument in response to orders from a surgeon, is not attached to the operating table and does not require pre-calibration of the insertion point. The system includes: a manipulator robot having three active degrees of freedom, which is provided with an end actuator having two passive degrees of freedom, said actuator being used to attach a surgical instrument; a robot controller built into the structure thereof, which can perform a method for calculating the movement to be imparted to the carried surgical instrument so that it reaches the desired location without requiring pre-calibration and without the assembly having to be attached to the operating table; and an interface system for ordering the system to perform the desired actions. The assembly comprising the robot, the controller and the interface system is battery operated.

Improved methods and devices for performing an endoscopic surgery including a system for performing minimally invasive procedures including a flexible catheter having a working space expanding system positioned at a distal portion, the working space expanding system movable from a non-expanded insertion position to an expanded position forming an expanded region to expand the working space within the body lumen. A tissue retractor having an inner member positioned within an outer member has a plurality of closed loops at a distal portion forming a petal-like structure. The loops are positioned in a collapsed position within the outer member and are movable to an expanded position when exposed from the outer member.

A flexible multi-joint operation micro instrument for robot-assisted minimally invasive surgery aims at solving the problem that an existing robot operation micro instrument in minimally invasive surgery can not be positioned, moved and the like in the body of a patient by means of the operation micro instrument. A transmission mechanism is installed on a drive box, six connection holes correspond to a first installation hole, a second installation hole, a third installation hole, a fourth installation hole, a fifth installation hole and a sixth installation hole respectively, and the interior of each connection hole is provided with a transmission element. A first bending transmission mechanism, a second bending transmission mechanism, a third bending transmission mechanism, a fourth bending transmission mechanism, an operating forceps opening and closing transmission mechanism and an operating forceps rotation transmission mechanism are connected with the corresponding transmission elements respectively. The lower end of each transmission element is connected with a micro drive motor. The rear end of a catheter is connected with a catheter fixing element. The front end of the catheter is connected with a flexible bending arm mechanism. The front end of the flexible bending arm mechanism is connected with an operating forceps mechanism. The flexible multi-joint operation micro instrument is used for an abdominal operation.

A sensor is described for detecting the force applied to or by soft material, and that is thus able to measure the stiffness of a soft material. The sensor comprises a sensor body into which is supplied a fluid under pressure. At least one sensor members are provided that are arranged to project from the sensor body under the pressure exerted thereon by the fluid. A sensor member displacement detection system is also provided, that is preferably optically based using optical fibres to illuminate the sensor member and that measures the modulation of the light reflected from the sensor member as the member is displaced against the pressure of the fluid to detect and measure the displacement. From the measured displacement an estimate of the force being applied to the sensor member can be obtained. The sensor is of a small size suitable for use during MIS or catheterisation procedures. Preferably the sensor is constructed of non-metallic material such that it is MRI compatible.

The invention discloses a six-degree-of-freedom surgical instrument by adoption of cable driving used for a minimally-invasive surgery. A surgical instrument itself has six degrees of freedom and is combined with a linear telescopic mechanism for loading the surgical instrument in order to achieve seven degrees of freedom, thereby finishing surgical operation required by a process of the minimally-invasive surgery. The surgical instrument comprises four parts including a power joint part of the surgical instrument, a connecting rod part of a main body of the surgical instrument, an end effector part of the surgical instrument and a quick-change part of the surgical instrument.The connecting rod part of the main body comprises shoulder joint deflection degree of freedom, an elbow joint pitching degree of freedom, a wrist joint pitching degree of freedom and a wrist rotation degree of freedom. The end effector part comprises finger folding degree of freedom and finger pitching degree of freedom. The connecting rod part is connected with a power unit and an end effector.The six-degree-of-freedom surgical instrument by adoption of cable driving used for the minimally invasive surgery has following advantages remote transmission is achieved by adoption of cables in order to eliminate return difference and to ensure reliable transmission; steel cables are present in the form of closed loop circuits; and the six-degree-of-freedom surgical instrument is advantaged by being multiple in degrees of freedom, little in occupied space and complete in function.

A photonic based non-invasive surgery system that includes an imaging device such as an MRI device and at least two beam generators for generating beams of energy for delivery to a target in the person's body, where the beams of energy intersect at a point. The system also includes a feed-forward control for precalculating anticipated deflections and resulting pathways as the beams of energy travel throughout the person's body, and a feedback control to obtain and use information gathered by the imaging device.

Application device (1), for example, a metal needle or a plastic catheter that has in the end portion (2) of the free end a gradually increasing thickness to form substantially a chute guide (3) which ends at a side opening (4) made on the application device (1). This way, an interstitial antenna (10) is obtained formed by a co-axial tube having an external conductor (7), by a dielectric layer (9) and by a central conductor (8) embedded in the dielectric layer (9) that insulates it from the external conductor (7). The antenna (10) can be put in a target tissue, along an actuation direction forming an angle a with the introduction direction. This way, the antenna (10) achieves an actual surface isothermal, i.e. a mass of tissue actually coagulated within a curved surface (13), since the tip of the application device (1) is connected electrically with the external conductor (7) and increases its area of action.

The invention discloses a acoustic field focal point mode driving and control method of sphere phased array focusing ultrasonic transducer, comprising a acoustic field algorism of sphere rectangle phased array and a driving control of phased multiple-points focusing mold genetic algorism. And the system matched aid method is that: a main control computer controls a layer-distribution controller to control the hundred-channel power driver to drive the hundred-array unit sphere phased array focusing ultrasonic transducer. The invention combines two algorism control methods in said treatment system to generate the acoustic mold as three-dimensional single focus, three-dimensional multiple focuses, combination switch focus and sub-array single and multiple focus. Wherein, the big focus formed by multiple focuses has larger volume and higher efficiency in single treatment than present single array focus; and the sub-array focus mold can avoid the shade of rib to process the focusing ultrasonic non-invasive surgery.

The invention relates to a focused ultrosound therapy combined array element phased array and multifocal shear wave imaging system for focused ultrosound non-invasive surgical therapy, belonging to the technical field of biomedical instrument, in particular to a combined array element phased array transducer used for multifocal focused ultrosound therapy and radial force excitation imaging and also relates to a multifocal plane shear wave imaging system by using the combined array element phased array transducer. In the transducer, the combined array element is formed by compactly placing 2*2 or 3*3 basic matrix array elements in rows according to spherical rectangle mode, all basic matrix array elements in each combined array element are in parallel electrically and share one power driven channel; a basic matrix array element distance is left between the centers of two adjacent combined array elements along at least one direction, and each combined array element is matched with the phase and amplitude of one power driven channel so as to significantly expand the focal scanning area.

The invention relates to a rigidity variable robot towards a minimally invasive surgery and a working method. The rigidity variable robot comprises a mechanical arm, wherein a front end is connected with a mechanical arm support fixed on a bottom plate, the mechanical arm comprises a flexible pipe, multiple joints and multiple groups of rope yarns, the neighboring joints are spherical surface contact, the flexible pipe passes through all of the joints, the rope yarns pass through all of the joints, and the rope yarns are uniformly distributed along a circumference concentrically installed withthe joints, two rope yarns in one group are arranged at two ends of a diameter of the circumference, an end part of one end of the rope yarn is fixedly connected with the joint at a tail end of the mechanical arm, and the other end passes through the mechanical arm support; a bending mechanism, wherein the bending mechanism comprises multiple rotatable turntables installed on the bottom plate, two rope yarns in one group are fixedly connected with the same turntable after passing through the mechanical arm support, the turntable is rotated so that one rope yarn can be retracted and the otherrope yarn can be released at the same time; and a rigid rod, wherein the rigid rod can be stretched into or stretched out of the flexible pipe, so rigidity of the mechanical arm is changed. The robotis capable of providing rigid support to the mechanical arm, and avoiding a human body from being injured.

The invention relates to a robot-assisted titanium clamp surgical device for minimally invasive surgery, in particular to a robot-assisted no-coupling fast-changing titanium clamp surgical device for minimally invasive surgery in order to solve the problem that currently, the robot-assisted titanium clamp surgical device for minimally invasive surgery is in shortage in China. A tail end executing mechanism of the device is connected with one end of a sleeve tube through a wrist connecting part, the other end of the sleeve tube is connected with a base of an adapter, a left small-jaw transmission mechanism, a wrist transmission mechanism, a sleeve tube transmission mechanism and a right small-jaw transmission mechanism are arranged on the upper surface of the base of the adapter in the shape of a rectangle, a transmission return mechanism is installed on the base of the adapter, the wrist transmission mechanism is connected with the wrist connecting part through a lower wrist traction steel wire and an upper wrist traction steel wire, and the left small-jaw transmission mechanism is connected with the tail end executing mechanism through a left small-jaw traction left steel wire and a left small-jaw traction right steel wire. The device is applied to the field of medical care.

The invention discloses a pair of scissors for a minimally invasive surgery with flexibility and rotation resistance. The pair of scissors comprises an operation part, a flexible extension part and a control part, wherein the flexible extension part comprises a flexible hose arranged in the center, at least two strand coiling layers which are stacked and sheathe the outer wall of the flexible hose and a transmission rope arranged in the flexible hose in a penetrating way, each strand coiling layer is formed by coiling at least five strands from one end of the flexible hose to the other end of the flexible hose, and coiling directions of any two adjacent strand coiling layers are opposite; the operation part comprises a first scissor body and a second scissor body which are intersected and pivoted by virtue of a connecting shaft pin as well as an operation device used for controlling the first scissor body and the second scissor body to act, the front end of the transmission rope is connected with the operation device, and the rear end of the transmission rope is connected with the control part, so that the operation device drives the first scissor body and the second scissor body to do opening-closing movement relative to each other under the action of the transmission rope.

The invention belongs to the technical field of medical apparatuses and instruments, and provides a self-locking type half kidney loop ligature for a minimally invasive surgery. The self-locking type half kidney loop ligature for the minimally invasive surgery is formed by a kidney ligature (1), a hoop (2), a connecting rod handle (3), a hoop clamping sheet (4), a self-locking pull sheet (5), a self-locking sliding block (6), a sliding block clamping sheet (7) and a movable handle (8). According to the self-locking type half kidney loop ligature for the minimally invasive surgery, by means of controlling the kidney ligature (1), only the blood supply of the kidney of a tumor growth end can be cut off, the effect of tumor removal is guaranteed, blood loss volume in the surgery process is reduced, and most importantly, the ischemia time of reserved parts of the kidney is reduced to zero; the fact that blocking on the blood supply of the whole kidney is avoided, the functions of the reserved parts of the kidney are protected to the maximum extent, and the significance of nephron-sparing surgeries under a peritoneoscope is fully embodied.

The invention relates to an invisible endoscopic channel for multichannel flexible single-hole abdominal cavity minimally invasive surgery, which comprises a multihole operating platform (3) which is arranged at the outer part of the abdominal cavity, and a flexible abdominal cavity channel tube (8) which is connected with the multihole operating platform and can be inserted into the abdominal cavity, and is characterized in that: a plurality of surgical instrument channels (1) with different heights are arranged on the multihole operating platform (3). At least one intake tube (2) and an air outlet tube (3) are arranged on the multihole operating platform (3). The integral shape of the flexible abdominal cavity channel tube (8) is a section of a flexible film channel which is similar to round, the upper end of the flexible abdominal cavity channel tube (8) is connected with the multihole operating platform (3), and the lower end of the flexible abdominal cavity channel tube (8) is connected with a round turning ring (7); and an inner race (6) with a pull band (5) is arranged at the outer part of an abdominal cavity channel tube which is formed by a flexible film, and can freely shift up and down.

Methods and apparatuses for speeding the softening of the cervix (cervical ripening) by way of application of ultrasound energy. A vaginal transducer may be used to emit pulse-modulated ultrasound energy directed to the cervix. Focused ultrasound energy may be applied trans-abdominally and directed at the cervix. Ultrasound energy is widely used in medical applications such as diagnostic imaging, therapeutic heating and noninvasive surgery.

The invention discloses a disposable object fetching bag for minimally invasive surgery. The disposable object fetching bag comprises a cannula and a bag body, wherein the bag body is positioned at the front end of the cannula; the rear end of the cannula is connected with a handle; a pushing handle assembly penetrates into the cannula from the side of the handle; a pulling belt extending from the cannula to the outside of the handle is connected to the bag body; a rope buckle used for pulling the bag body and a drawstring used for retracting the opening of the bag body are respectively arranged at the ports of the pulling belt; the pushing handle assembly comprises an inner pipe which penetrates into the opening of the bag body from the interior of the cannula; a supporting forceps holder used for supporting or retracting the opening of the bag body is connected with the front end of the inner pipe; the rear end of the inner pipe extends out of the handle to be connected with a pushing handle; the rope buckle is connected to the pushing handle in a buckling way. The disposable object fetching bag is simple in structure and convenient to operate, and the opening of the bag body can be conveniently retracted through the actions of pushing handle assembly and the pulling belt; after diseased tissues are collected, the opening of the bag body is quickly pulled out of a body, so that the surgery time is saved.