166 results about "Less invasive surgery" patented technology

The invention relates to the technical field of minimally invasive surgical instruments, in particular to a braided flexible operation arm for shape perception based on distributed fiber bragg gratings and a feedback control method thereof.The braided flexible operation arm comprises a double-layer braided framework, and the double-layer braided framework is formed by tightly attaching an inner braided tube and an outer braided tube; the inner braided tube is formed by spirally braiding a plurality of capillary tubes, an optical fiber sensing unit comprising an FBG is arranged in the capillary tubes in a penetrating manner, and a flexible driving wire is arranged in the double-layer braided skeleton in a matched manner. Therefore, on the premise of the minimum structural load, the flexible operation arm of the woven structure can sense the space posture of each joint of the operation arm with high reliability, and shape reconstruction and motion feedback control of the operation arm are achieved.

The invention discloses a spherical pair locking mechanism and a medical instrument, and relates to the field of medical instruments. The ball pair locking mechanism comprises a ball joint and a locking assembly. The locking assembly comprises a transmission structure, an elastic piece, a locking gear and a force application driving piece. The rigid meshing locking mode of the locking gear and the meshing tooth edge of the inner ball head replaces traditional friction braking, locking force reduction and looseness caused by long-term use and abrasion can be avoided, the locking reliability is greatly improved, and the minimally invasive surgery positioning precision is guaranteed; a user can directly drive the transmission structure through the force application driving part to achieve switching between locking and unlocking of the ball joint, the mechanism is kept in a preset locking or unlocking state in a non-operation state by adjusting the locking gear and the meshing tooth edge and providing automatic reset force through the elastic part, manual intervention is reduced, and the rapid operation requirement of an operation scene is met. The mechanism is compact in structural layout, can adapt to the limited space of minimally invasive surgical instruments, and meets the requirements for locking strength and miniaturization.

Systems and methods for performing surgery are provided, which permit multiple tool tips to be interchanged within an instrument shaft during a minimally invasive procedure. The surgical device holds a plurality of interchangeable tool tips such that a selected tool tip from a chamber of a magazine can be mounted at the distal end of an elongated shaft for a laparoscopic surgery. In this manner, multiple tool types can be interchanged within a shaft without having to remove the instrument from the patient for tool changes, thereby increasing surgical efficiencies and reducing the number of tools needed for a procedure.

The invention relates to the technical field of image recognition, in particular to a gynecological operation navigation method and system based on the minimally invasive technology, and the method comprises the steps: carrying out the feature recognition operation of a three-dimensional focus region structure diagram, and obtaining a focus surrounding tissue feature set; performing minimally invasive surgery scheme identification operation on the focus surrounding tissue feature set to obtain a predicted channel number; performing minimally invasive surgery path recognition operation based on the predicted channel number on the tissue feature set around the focus to obtain a minimally invasive path set, and acquiring necessary avoidance tissue sequences in a preset range region on each minimally invasive path in the minimally invasive path set to obtain a necessary avoidance tissue sequence set; according to the necessary avoiding tissue sequence set, the real-time instrument position information, the minimally invasive path set and the path distribution purpose type set, cutting operation is conducted on the target treatment area, and a minimally invasive channel set is obtained. The navigation accuracy of the minimally invasive surgery can be improved, and the safety of the minimally invasive surgery is improved.

Minimally invasive surgical systems and corresponding methods that can be quickly and accurately calibrated and / or provided in a pre-calibrated manner are disclosed. The systems and method receive an indication designating at least one portion of the surgical site as a safe or a danger zone and display the designated zone(s) on a livestream of the surgical site. The designated zones identify locations where the surgical instrument should avoid (danger zone), or where the surgical instrument is intended to be placed for the surgery or where the one or more surgical instruments can be safely maneuvered (safe zone and dissection zone).

Provided are tissue repair and sealing devices, and methods for the use of tissue repair and sealing devices, for use in both minimally invasive surgical (MIS) procedures and open, non-MIS procedures to rapidly repair tissue fenestrations and create a pressure-resistant, watertight seal in a tissue barrier. Tissue repair and sealing devices disclosed herein comprise an integrated graft and deployable clasp assembly and an applicator assembly having a graft-clasp lock cylinder that is slidably connected to a folded, deployable clasp. The applicator assembly places a graft on a tissue inner surface and a deployable clasp on a tissue outer surface to secure the graft to the tissue inner surface to, thereby, repair a tissue fenestration and create a watertight barrier.

1. The name of the design product: medical endoscope camera. 2. The use of the design product: the product is used for ear, nose and throat outpatient and minimally invasive surgery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This utility model relates to the field of surgical instrument technology, and in particular to a laparoscopic minimally invasive surgical forceps, comprising a long rod, one end of which is fixedly provided with a holding component, and the other end of which is provided with a clamping component connected to the holding component. A spreading component is sleeved on the outer wall of the long rod. The spreading component includes a sleeve sleeved on the long rod, one side of which is provided with a fixing ring fixed to the long rod. A second spring is sleeved on the outer wall of the sleeve, and one side of the second spring is connected to an operating ring sleeved on the sleeve. One end of the operating ring is hinged to the spreading rod through a hinge rod, and one end of the spreading rod is hinged to the outer wall of the sleeve. This laparoscopic minimally invasive surgical forceps, by setting up a spreading component, utilizes the elastic force of the second spring to spread the spreading rod outward, thereby spreading other organs in the surgical area to both sides to expose the position of the surgical area. This facilitates various surgical operations for the surgeon and avoids the problem of surgical difficulties caused by obstruction.

The present application relates to the technical field of medical apparatus, and discloses a multifunctional ligation and cutting device for single-hole completion of appendicitis minimally invasive surgery, which comprises a sleeve, a plurality of operators for completing ligation and cutting work movably arranged in the sleeve, a plurality of operation driving parts corresponding to the plurality of operators respectively for controlling the operation of the operators, a linear driving part connected with the plurality of operation driving parts respectively for controlling linear reciprocating movement of each operation driving part, and a connecting rod connecting the sleeve with a fixed end of the linear driving part. The operators for completing ligation and cutting of the appendix are integrated in the sleeve, the linear driving part and the operation driving part for controlling the operation of the operators are integrated outside the sleeve, the single-hole minimally invasive surgery of the appendix of a patient without obvious adhesion can be completed, the linear driving part and the operation driving part can be used to control the operation of the plurality of operators, and the operation is convenient; the operation is simpler, and the trauma of the patient is smaller.

The present invention relates to a robotic system (100) for laparoscope (6) manipulation during minimally invasive surgeries. The system comprises a movable base (1), a vertical column (3) with a curved configuration to shift the centre of mass for stability, and a SCARA system (4) that cooperates to align the Remote Center of Motion (RCM) (5). The system provides seven degrees of freedom, including vertical motion (7), horizontal motion (8, 9), and RCM-based pitch (11), yaw (10), roll (13), and zoom (12). At the distal end, a clamp securely holds the laparoscope (6) while allowing controlled roll, and an actuated cleaning module (19) enables in-situ cleaning without removal. A guiding ring (20) assists linear alignment, while interchangeable clamps permit use with various surgical tools. The foldable design reduces volumetric space by up to 50%, enhancing portability, precision, and efficiency in surgical operations.

This invention belongs to the field of medical robotic arm technology, and more particularly to a needle-holding robotic arm for minimally invasive surgery, comprising a handle, a protective shell, and a crank shell. The invention features an anti-tipping wheel located inside the crank shell near the shaft. The rim of this anti-tipping wheel presses firmly against the surface of the wire rope, effectively preventing the wire rope from slipping out of the groove in the reel during high-speed or large-angle transmission. This ensures that the gripper's movements are consistent with the surgeon's intentions, avoiding missed steps due to skipped threads or slack, thereby improving the safety and precision of the surgery. Simultaneously, the wire rope is driven by gear transmission inside the protective shell, and the pitch axis controls the pitch angle of the gripper. This allows the surgeon to control the opening and closing of the gripper and the pitch angle simultaneously or separately through a single finger gripping operation, enabling complex actions such as needle clamping, needle rotation, and suturing within confined human cavities. This significantly improves the instrument's operational flexibility and surgical efficiency.

The application provides a surgical dissector and a surgical robot comprising the same, the surgical dissector comprising an instrument transmission box and an instrument operation part, wherein the instrument transmission box is provided with a transmission structure and an extension part extending out of the instrument transmission box; the instrument operation part comprises a knife head seat and a knife head arranged on one end of the knife head seat, and the other end of the knife head seat is connected with the extension part through a bending assembly; the bending assembly is arranged with at least two traction parts at intervals in the circumferential direction, one end of the traction part is connected with the knife head seat, and the other end is in transmission connection with the transmission structure of the instrument transmission box along the extension part; the transmission structure can drive the selected traction part to be tensioned or relaxed, so that the bending assembly is bent along the tension direction of the traction part, so that the knife head can be bent, multi-dimensional and multi-directional bending adjustment of the knife head is realized, and good research and development effects are achieved for the orientation adjustment of minimally invasive surgical instruments in various surgical scenes.

This invention relates to the field of minimally invasive surgical instrument technology, and in particular to a braided flexible manipulator based on distributed fiber grating (FBG) shape sensing and its feedback control method. The manipulator includes a double-layer braided skeleton, which is composed of an inner braided tube and an outer braided tube tightly fitted together. The inner braided tube is composed of multiple strands of capillary spirally woven together, and an optical fiber sensing unit containing an FBG is inserted inside the capillary. A flexible drive wire is also provided within the double-layer braided skeleton. This invention, through its double-layer braided skeleton structure and the integration of an optical fiber with FBG functionality, enables the flexible manipulator with a braided structure to reliably sense the spatial posture of each joint of the manipulator with minimal structural burden, thereby achieving shape reconstruction and motion feedback control of the manipulator.

A robotic system for minimally invasive surgery includes a robotic arm with robotic F / T sensors and surgical instruments attached thereto. The surgical instruments are positioned within a patient's body cavity via a cannula in which a cannula F / T sensor is integrated. The output of the cannula F / T sensor is subtracted from the output of the robotic F / T sensor (and vice versa) to eliminate the influence of force or torque between the cannula and the patient's skin, obtaining only the force or torque applied to the surgical instruments. To perform this subtraction, the reference frames of the two F / T sensors are first aligned. For example, the position of the surgical instrument tip can be measured or estimated, and the corrected force or torque can be similarly converted to the reference frame of the surgical instrument tip.

The utility model discloses a minimally invasive surgery thin-walled tubular cutter plastic embedding forming die with high positioning precision, which comprises an upper die plate, a lower die plate, an upper cavity seat, a lower cavity seat, an upper positioning column, a lower positioning column, an axial positioning needle and a positioning needle mounting piece, and the upper positioning column comprises a first upper positioning column and a second upper positioning column; the lower positioning columns comprise the first lower positioning column and the second lower positioning column, the first upper positioning column is installed in the vertical through hole of the upper cavity base, the first lower positioning column is installed in the vertical through hole of the lower cavity base and located under the first upper positioning column, and the second upper positioning column is installed in the vertical through hole of the upper die plate and located under the second upper positioning column. The second lower positioning column is installed in the vertical through hole of the lower die plate and located under the second upper positioning column. According to the utility model, the two radial positioning points are used for radially positioning the metal cutter body in the axial direction of the metal cutter body, so that the radial positioning of the metal cutter body is firmer and more reliable, and the plastic embedding forming quality is improved.

The application provides a guide plate for minimally invasive surgery, and relates to the technical field of skull minimally invasive surgery, and comprises a personalized customization piece, which is customized based on three-dimensional data of a patient, is suitable for being attached and worn on a target part of the patient, and is provided with a first connecting part; a standardized connecting piece, which is made of a material that is not easy to deform under high-temperature sterilization, is provided with a second connecting part for forming a detachable connection with the first connecting part, and is provided with a third connecting part; and a personalized guide piece, which is made of a material that is not easy to deform under high-temperature sterilization, is provided with a guide channel for guiding a medical implanting instrument to pass through, is provided with a fourth connecting part for forming a detachable connection with the third connecting part, and is located on an implanting path planned before surgery after the fourth connecting part is connected with the third connecting part. The manufacturing cost of the guide plate is reduced, and the good accuracy of the guide plate is ensured.

Systems, devices, and methods for controlling cooperative surgical instruments are provided. Various aspects of the present disclosure provide for coordinated operation of surgical instruments accessing a common body cavity of a patient from different approaches to achieve a common surgical purpose. For example, various methods, devices, and systems disclosed herein can enable the coordinated treatment of surgical tissue by disparate minimally invasive surgical systems that approach the tissue from varying anatomical spaces and operate in concert with one another to effect a desired surgical treatment.

The invention relates to a single-channel minimally invasive arthroscope sheath which comprises a sheath body, and an observation cavity and an operation cavity are formed in the sheath body in the length direction of the sheath body. A spacer is arranged between the observation cavity and the operation cavity, and the axis of the observation cavity and the operation cavity form a cooperative working area in front of the imbedding end. According to the endoscopic sheath, a single-channel and double-function minimally invasive surgery mode is fundamentally realized. Through the physical isolation of the spacer and the space angle design of the observation cavity and the operation cavity, it is ensured that the arthroscope and the surgical instrument are parallel and do not interfere with each other in a single channel. In the operation process, the arthroscope can obtain a stable and clear operation field, a surgical instrument can directly reach an operation area in the preset direction, the arthroscope and the surgical instrument converge in a target area to form effective cooperation, and therefore a single incision is used for replacing traditional double channels, the wound area is reduced, and on the premise that operation operability is guaranteed, operation efficiency is improved. The number of channels is further reduced, and a more minimally invasive arthroscope sheath structure is achieved.

The invention relates to the technical field of medical instruments, in particular to a minimally invasive dilation drainage kit which comprises a sheathing canal body and a dilator, the dilator is fixedly and detachably assembled at the end of the sheathing canal body, an annular groove is formed in the peripheral wall of the end, close to the dilator, of the sheathing canal body, and a hemostasis ring set and a cooling ring set are arranged in the annular groove; the hemostasis ring set and the cooling ring set are connected to a control part of the minimally invasive surgery equipment through wires, the wires are attached to the peripheral wall of the sheathing canal body or pre-buried in the sheathing canal body, and the hemostasis ring set emits heat after being powered on so as to heat bleeding points of the blood vessel wall and promote scabbing. And the cooling ring group is electrified to refrigerate so as to cool the bleeding point of the blood vessel wall. According to the minimally invasive dilatation drainage kit, the hemostasis ring set and the cooling ring set are hidden in the annular groove, then the sheathing canal integrates the double effects of hemostasis and cooling, the use frequency of blood coagulation forceps is greatly reduced, and the pain of a patient is relieved.

The invention relates to the field of minimally invasive surgical instruments in the anorectal department, and discloses a positioning and pushing device for internal hemorrhoid loop ligature in the anorectal department, the positioning and pushing device comprises a positioning seat, a pushing rod is movably mounted in the positioning seat, a movable ball seat is movably mounted at one end, away from the positioning seat, of the pushing rod, a connecting seat is fixedly mounted at the outer side end of the movable ball seat, and the connecting seat is fixedly connected with the positioning seat. A sleeve is fixedly installed at the outer side end of the connecting base, a pushing cylinder is movably installed on the outer diameter of the sleeve, a rubber ligation ring is arranged on the side, close to the pushing cylinder, of the outer diameter of the sleeve, a control chamber is fixedly installed at the end, close to the positioning base, of a pushing rod, and an upper first rope roller and a lower first rope roller are movably installed on one side of the interior of the control chamber. Through visual precise positioning, multi-dimensional angle adjustment, negative pressure adsorption fixation and one-key loop ligature design, operation is convenient and fast, trauma is small, the internal hemorrhoid basal part can be precisely ligatured, the operation efficiency and safety are improved, complications are reduced, and the patient experience is improved.

A retractor-camera kit for minimally invasive surgery is provided. The kit includes a retractor comprising at least a top blade and a first side blade connected to one another through a hinge, a handle connected to the retractor, and a camera connected to the retractor via a designated holder to provide visualization of a surgical site while avoiding the need for an additional incision for passing an imaging unit therethrough.

The present application relates to a kind of minimally invasive surgery executor end coordinate positioning method based on current field navigation, belong to surgical navigation positioning technical field, comprising the following steps: S1: assume an initial current source vector, obtain the distribution of rough conductivity, obtain the potential distribution at this time by positive problem calculation process, and judge whether residual is less than the set exit threshold value;S2: calculate Jacobian matrix;S3: calculate the current source vector of next time;S4: obtain the potential distribution at this time by positive problem calculation process, and compare the measured potential distribution and calculate residual;S5: after changing current electrode pair, repeat steps S1-S4 until all current electrode pairs are traversed, calculate whether total residual is less than the set exit threshold value;If not less than exit threshold value, repeat steps S2-S5;If greater than exit threshold value, stop calculation, the current source vector at this time is the current source vector approximate solution that meets the condition.

Surgical instruments and methods of minimally invasive surgery are provided. The device may include two proximal handles each sized for a surgeon's hand, the two handles in fixed relative positions, and a distal probe attached to the handles. The probe can include a distal cutting member and contain or receive an imaging device. The system can be used for cutting anatomic members, such as ligaments, during minimally invasive surgical procedures, for example, performing endoscopic ligament release surgery, such as carpal tunnel release, plantar fasciotomy, gastrocnemius release, cubital tunnel release, and tarsal tunnel release surgery, and similar surgical procedures on anatomic members.

The invention relates to the technical field of laparoscopic surgical forceps, in particular to laparoscopic minimally invasive surgery tension measuring forceps and system.The laparoscopic minimally invasive surgery tension measuring forceps are characterized in that a traction rod is arranged in a sleeve, the rear end of the sleeve is connected with an operation part, the operation part comprises a fixed handle and a movable handle, and the top end of the movable handle extends into a sleeve structure to be matched with an open groove in the rear end of the traction rod; the top end of the movable handle can drive the traction rod to reciprocate in the sleeve, so that the forceps holder assembly at the front end of the sleeve is clamped and loosened; three groups of detection pieces are integrated on the traction rod and are respectively a tension pressure sensor, a tilt angle sensor and an electronic compass, data lines of the detection pieces extend to the outside of the tension measuring pliers from the rear end of the sleeve, detection data of the three groups of detection pieces are obtained and are converted into rectangular coordinates through spherical coordinates, and then the measured tension is obtained through a Rodrigues rotation formula; the sensor is integrated on the traction rod of the tension measuring forceps for the laparoscopic minimally invasive surgery, and the tension can be directly measured after calculation by acquiring a plurality of groups of data measured by the sensor.

Systems and methods for performing surgery are provided, which permit multiple tool tips to be interchanged within an instrument shaft during a minimally invasive procedure. The surgical device holds a plurality of interchangeable tool tips such that a selected tool tip from a chamber of a magazine can be mounted at the distal end of an elongated shaft for a laparoscopic surgery. In this manner, multiple tool types can be interchanged within a shaft without having to remove the instrument from the patient for tool changes, thereby increasing surgical efficiencies and reducing the number of tools needed for a procedure.

The invention relates to a T-tube implantation double-layer sheathing canal pushing device for laparoscopic surgery. The device is mainly composed of an outer sheath tube, an inner sheath tube and a push rod. The outer sheath tube and the inner sheath tube are both of tubular structures, axial openings are formed in one sides of the tube walls, the push rod is arranged in the inner sheath tube and can slide in the axial direction of the inner sheath tube, and an elastic fixing mechanism is arranged at the far end of the push rod. By means of the half-opening design of the double-layer sheathing canal, convenient pre-loading of the T-tube is achieved; an elastic fixing mechanism of the push rod is utilized, so that the stability of the T-shaped pipe in the pushing process is ensured; and finally, through the pushing action of the pushing rod and the withdrawing action of the sheathing canal, the precise release of the T-tube in the common bile duct is realized. The invention aims to solve the problems of complicated T-tube implantation operation, infirm fixation, easy tissue damage and the like in the prior art, and is particularly suitable for minimally invasive surgery environments such as laparoscopes and the like.

A rigid minimally invasive surgical instrument belongs to the field of medical instruments, and is characterized in that an operation assembly controls an execution assembly to realize opening, closing and deflection movement through a connecting assembly; the execution assembly comprises a wrist part, an execution claw and two push rods; the execution claw is connected with the wrist part, and the two push rods are connected with the wrist part far away from the execution claw; the connecting assembly comprises an operating rod, an opening and closing rod, a steel wire rope fixing piece, a steel wire rope and a push-pull rod. Two spiral grooves with opposite rotating directions are formed in one end of the operating rod; the cylindrical bulges on the two push rods are respectively matched with the two spiral grooves; the opening and closing rod is coaxially arranged in the operating rod and can rotate and slide; the opening and closing rod is connected with the operation assembly and the steel wire rope fixing piece. The steel wire rope fixing piece, the steel wire rope and the push-pull rod are sequentially connected. The operating rod is connected with the operating assembly, and the operating rod is rotated to enable the two push rods to move in opposite directions and drive the wrist to rotate. The instrument has the functions of deflection, opening and closing and the like, and smoother and more efficient surgical operation can be achieved.

A surgical port system for use in minimally invasive procedures. The port includes a port shaft configured to receive 3 mm instruments, and a low-profile head assembly designed to minimize external bulk over the skin surface. The port further includes a novel retention assembly comprising an internal retention member and an external retention member. The internal retention member is positioned near the distal end of the port shaft and transitions from a low-profile insertion configuration to an expanded deployed configuration to resist withdrawal. The expansion is achieved via an actuator-operated reservoir secured to the port shaft and configured to transfer fluid through one or more channels to the internal retention member. The retention assembly is specifically configured to minimize the lateral expanse of both internal and external components, making the port system ideal for pediatric surgical applications.

This invention relates to the field of medical auxiliary devices, specifically to a visual endoscopic minimally invasive surgical aid device, comprising a metal cannula and a transparent inner tube. The transparent inner tube slides within the metal cannula. The metal cannula contains a sealing mechanism for sealing the transparent inner tube and a clamping mechanism for applying clamping force to the transparent inner tube. The sealing and clamping mechanisms coordinate with the operation of the transparent inner tube, enabling axial displacement of the transparent inner tube to trigger synchronous adjustment of the sealing and clamping mechanisms, achieving sealing and clamping fixation. This invention combines the axial sliding operation of the transparent inner tube with the synchronous triggering of sealing and clamping functions, achieving a linkage design where operation equals sealing and movement equals locking; it simplifies surgical procedures and improves surgical efficiency.

The application discloses a distraction assembly and a minimally invasive surgery distraction device. The minimally invasive surgery distraction device comprises a driving assembly, a first distraction assembly and a second distraction assembly. The driving assembly is used for driving the first distraction assembly to move relative to the second distraction assembly to adjust the distance between the first distraction assembly and the second distraction assembly. The first distraction assembly comprises a connecting piece, a distraction piece and a driving piece. The connecting piece is connected with the driving assembly. The distraction piece is rotationally connected with the connecting piece. The distraction piece can rotate relative to the connecting piece around a rotation axis. The distraction piece comprises a connecting groove extending in a first direction. The driving piece comprises a driving part located in the connecting groove. The driving part can rotate in the connecting groove relative to the distraction piece and move in the first direction to drive the distraction piece to rotate around the rotation axis. The minimally invasive surgery distraction device can accurately drive the distraction piece to rotate relative to the connecting piece around the rotation axis by a certain angle to expand the surgical field of view, so that the doctor can operate more conveniently and the surgical efficiency can be improved.