181 results about "Surgical scissors" patented technology

The present invention provides robotic surgical instruments and systems that include electrosurgical cutting/shearing tools and methods of performing a robotic surgical procedure. The surgical instruments can advantageously be used in robotically controlled minimally invasive surgical operations. A surgical instrument generally comprises an elongate shaft having a proximal end and a distal end. An end effector, for performing a surgical operation such as cutting, shearing, grasping, engaging, or contacting tissue adjacent a surgical site, is coupleable to a distal end of the shaft. Preferably, the end effector comprises a pair of scissor-like blades for cooperatively shearing the tissue. A conductor electrically communicating with at least one blade delivers electrical energy to tissue engaged by the blades. An interface coupled to the proximal end of the shaft and removably connectable to the robotic surgical system is also included.

An elongated plate for coupling severed bone regions comprising at least one bridge region, the at least one bridge region terminating in at least two bone fixation regions. The at least two bone fixation regions each contain at least one aperture for receiving a suitable fastening device for securing the elongated plate to the bone regions to be coupled. The bridge region may be configured so as to be easily severed by a suitable severing device such as surgical scissors. The elongated plate and fastening device may be formed from a bio-compatible or bio-resorbable material.

A bipolar electrosurgical scissors for use in open or endoscopic surgery has a pair of opposed blade members pivotally joined to one another and to the distal end of the scissors itself by a rivet which extends through a insulated bushing member. Each of the blade members comprises a blade support and a blade itself, each fabricated from metal, such as stainless steel. The blades are affixed to their associated supports by means of a suitable adhesive or adhesive composite material such as a fiberglass reinforced epoxy exhibiting dielectric properties. Cutting is performed, steel-on-steel, without causing a short circuit between the two blade supports which themselves function as the bipolar electrodes.

In one embodiment of the invention, a robotic surgical tool having opposing jaws, the working element of the robotic surgical tool is made of a different material from the drive element of the robotic surgical tool. The two elements may be manufactured independently and assembled together at a later stage. The material comprising each element may thus have properties more appropriate to the function each element plays in the robotic surgical tool. For example, the metal selected to comprise the blade of a surgical scissor may be corrosion resistant and capable of being sharpened to a high degree.

Surgical apparatus includes bipolar electrodes and tissue-shearing blades configured to electrically contact tissue for electrocauterization thereof prior to shearing contact of the cutting blades with the tissue over wide angles of presentation of the tissue to the electrodes and blades. Extensions or protrusions disposed along facing edges of the electrodes separate the level at which tissue is electrically contacted by the electrodes from the level at which tissue is sheared by the cutting blades.

The invention discloses a virtual surgical instrument with 5-free degree force feedback, which belongs to the field medical training instruments. The invention includes a control detecting system and a mechanical structure which consists of a set of feet, a base board, two columns, a roof, four reduction gears, four reduction arc teeth, four retaining plates, two scissor handles, two parallel guide rods, a set of pull rods, an operating lever, a rolling bearing, an upper beam, a lower beam, a roller and a slide block and five drive actuators. The sensor collects input information of an interactive system such as pose and operating speed of an equipment handle, while drive actuators apply a variety of force and damping effect to an equipment operator. The virtual surgery device with 5-free degree force feedback can realize force feedback function with 5 free degrees, and the allowable human sports joints include the wrist joint, the elbow joint and the shoulder joint of the arm. With the virtual surgical instrument, the operator can perform virtual surgery actions of surgical scissors, a surgical clamp, a scalpel and a surgical abrasion drill, etc.

Providing a ceramic-coated medical appliance quite excellent in insulating performance which has no negative effects on tissues or cells of an organism subjected to surgery; a ceramic-coated genetic control needle which has no risk of breaking during use nor no unfavorable effects, such as destruction or tear-off, on sliced tissues or tissue areas around the needle at site of penetration into a lesion and which cuts off a cell nucleus or injects an immunological solution into the nucleus without causing any negative effects on tissues around the penetrated needle; and a fabrication method for the same.

Specifically, in the ceramic-coated medial needle, genetic control needle, biopsy forceps and medical appliances such as forceps, surgical scissors and surgical knife, an insulating ceramic film having a resistance ρ of 10⁵ Ω·m or more is formed, by dry plating, at least on a portion, a part or the whole of an outer and/or an inner surface of a metal needle that directly contact an organism, or cells or cell nuclei thereof.

The invention discloses a decoupled quick change surgical device for a robot assisted minimally invasive surgery, and relates to a surgical device for the robot assisted minimally invasive surgery, and in particular relates to the decoupled quick change surgical device for the robot assisted minimally invasive surgery, aiming at solving the problems of high probability of snap break of driving left finger and right finger, complex structure and over-long replacement time of surgical instruments in a surgical process existing in the conventional minimally invasive surgical device. The decoupled quick change surgical device comprises an upper blade transmission mechanism, a wrist transmission mechanism, a casing transmission mechanism, a lower blade transmission mechanism, a first resetting mechanism, a second resetting mechanism, a first guide mechanism, a second guide mechanism, a front-end surgical scissor mechanism, an adapter shell, an adapter upper cover, a casing, a wrist connecting piece, an upper blade traction lower steel wire, an upper blade traction upper steel wire, a wrist traction lower steel wire, a wrist traction upper steel wire, a lower blade traction lower steel wire, a lower blade traction upper steel wire and seven screws. The decoupled quick change surge surgical device is used in the robot assisted minimally invasive surgery.

The invention discloses a method for preparing disposable minimally invasive surgical scissor blades, which comprises the following steps of: mixing a stainless steel powder substrate material and a binder, pelletizing to obtain uniform feed, injecting the feed by a powder injection molding technology to obtain an injection blank of the scissor blades, removing the binder by a degreasing process,sintering the degreased blank, and performing heat treatment strengthening to obtain disposable minimally invasive surgical scissor blade products. The minimally invasive surgical scissor blades are prepared by the powder injection molding technology, shapes can be formed at one time, a process for mass production through a mold is adopted, the automation degree, performance and yield are high, subsequent processing is not needed, the utilization rate of raw materials is high, and cost is low, so that one-time popularization of minimally invasive surgical scissors can be realized.

The invention provides a multifunctional radio frequency cooling knife which can be used for cutting, coagulating or melting tissues of a patient. The cooling knife comprises a first branch, a second branch, a connecting end part and an operation handle, wherein a cutting head is at least partially limited by the first branch and the second branch to become radio frequency surgical scissors when the first branch is arranged into an angle relative to the second branch; the first cutting head on the first branch is used as a radio frequency melt cutting head when the first branch is overlapped and combined relative to the second branch; and the first branch and the second branch are respectively provided with a cooling device. By combining surgical scissors and radio frequency knife organically, the multifunctional radio frequency cooling knife has multiple functions, can effectively utilize spaces of devices, and has the characteristics of high use frequency and long disposal use time for the multifunctional knives. The convenience for using surgical devices is improved by using a cooling system.

The invention discloses precipitation-hardening martensitic stainless steel for a surgical operation and a heat treatment process thereof, and belongs to the technical field of stainless steel material. The stainless steel comprises the following chemical composition: not more than 0.07 wt% of C, not more than 1.00 wt% of Si, not more than 1.00 wt% of Mn, not more than 0.040 wt% of P, not more than 0.030 wt% of S, 3.00-5.00 wt% of Ni, 15.0-17.5 wt% of Cr, 3.5-5.5 wt% of Cu, 0.05-0.15 wt% of N, 0.15-0.45 wt% of Nb, and the balance Fe. After the stainless steel is subjected to special heat treatment, a copper-rich phase can be precipitated evenly and dispersedly in a stainless steel matrix, and thus the stainless steel is endowed with an antibacterial function. The stainless steel solves the problem of bacterial infection caused by the use of stainless steel tools in a conventional surgical operation, is widely applied in various stainless steel appliances such as scalpels, surgical scissors, surgical forceps, intestinal forceps and curettes used in the surgical operation in the medical clinical field.

The invention discloses an anti-sticking surface, a kitchen knife, a pot, a scalpel, an operation scissors and a preparation method. An anti-sticking structure which is formed by protruding parts and/or pit parts is distributed on the anti-sticking surface, and the protruding parts and/or the pit parts are periodically distributed on the surface, and the surface is changed into a rough surface with the micron order roughness, so that the surface performance of the surface is changed; and the contacted substance show the composite contact surface with the anti-sticking surface, recessed areas between the protruding parts of the anti-sticking structure and concave areas of the pit parts are adsorbed with gas to form an isolation air cushion layer, so that the contact area is reduced, and thecontact substances which are stuck are realized. The surfaces of the kitchen knife, the pot, the scalpel and the surgical scissors are the anti-sticking surfaces, so that the anti-sticking effect isachieved. According to the preparation method, the ant-sticking structure which is formed by the protruding parts and/or the pit parts on the surface is adopted by etching technology, so that a chemical anti-sticking coating is replaced, anti-adhesion is achieved, no toxic substances are released in the using process, the contact and the environment are not polluted, and the safety is improved.

The invention relates to the field of medical appliances, in particular relates to cleaning equipment for medical surgical scissors. The cleaning equipment comprises a box body; the box body is internally provided with a containing cavity; the containing cavity is internally provided with a conveyor belt, a cleaning device, a wiping device and a drying device; the cleaning device, the wiping device and the drying device are arranged at intervals along the conveying direction of the conveyor belt; a positioning fixture is arranged on the top of the conveyor belt; the cleaning device comprises afirst cleaning assembly and a second cleaning assembly; the wiping device comprises a support frame, an adjusting assembly, a first wiping assembly and a second wiping assembly; the top of the box body is provided with a sliding cover matched with the top of the box body in a sliding way. The cleaning equipment for the medical surgical scissors has the beneficial effects that a pair of surgical scissors are limited on a locating shaft, the posture of the surgical scissors on a locating plate is adjusted by shifting an air clamp and a shifting plate, and a first wiping wheel and a second wiping wheel can be used for cleaning the closed part of the surgical scissors.

Localization guidance surgical electrocoagulation scissors comprise a front-end scissor mechanism and a control mechanism which are connected through a carbon fiber tube. The front-end scissor mechanism comprises a pair of scissor bodies, and a middle support with the top hinged to the pair of scissor bodies and the bottom hinged to a bobbin. The control mechanism controls the opening, closing and homodromous swinging of the pair of scissor bodies through steel wire ropes, and the control mechanism controls the swinging of the middle support through a steel wire rope. The middle support is conical, and a wiring groove is formed in the side wall of the middle support. The pair of scissor bodies is connected with an electrode through an electrocoagulation wire to form the single-pole electrocoagulation scissors, the electrocoagulation wire is fixedly connected to the bottom of the bobbin, and the electrocoagulation wire does not move along with the pair of scissor bodies. Wearing of the electrocoagulation wire is slight, the service life is long, and the service life of micro-equipment is prolonged overall.

The invention discloses a convenient-to-use surgical scissors disinfection device for gynaecology and obstetrics. The disinfection device comprises a disinfection box and an upper cover, and two powerrollers are rotationally connected into the disinfection box; the two power rollers are connected through a belt; the upper end of the belt is fixedly connected with a plurality of U-shaped strips; wedge-shaped blocks matching limiting mechanisms are arranged on the inner walls of the front side and the rear side of the disinfection box; a driving motor is fixedly connected to the bottom of the disinfection box, the output end of the driving motor penetrates through the bottom of the disinfection box and is rotationally connected with the disinfection box, a rotating plate is fixedly connected to the output end of the driving motor, and a stirring rod is fixedly connected to the upper end of the rotating plate. The convenient-to-use surgical scissors disinfection device is reasonable in structure, surgical scissors can be independently clamped and fixed and are not prone to being stacked, so that the disinfection effect on the surgical scissors can be improved, the surgical scissors can be washed and dried, workers can conveniently take out the surgical scissors, and next-step disinfection treatment is facilitated.

The invention discloses a pair of surgical scissors. The surgical scissors comprise a left side scissors arm and a right side scissors arm, wherein the left side scissors arm and the right side scissors arm are connected through a rotating shaft, a suture leading hook is arranged at the front end of the left side scissors arm and/or the right side scissors arm, and the top end of the suture leading hook is a pointed end. According to the surgical scissors, through forming an arc-shaped groove, during use, a middle finger is placed into the arc-shaped groove made from a silica gel material, a guiding effect is exerted on one hand, and the wear to the middle finger can be effectively avoided on the other hand; through arranging the suture leading hook, during suture removal, a suture end combined position is rapidly found through the pointed end on the suture leading hook, sutures can be conveniently removed, and the injury to tissue is avoided; through forming an inclined groove, a gap can be reserved between the left side scissors arm and the right side scissors arm when the left side scissors arm and the right side scissors arm are fit, the condition that the left side scissors arm and the right side scissors arm are closely fit during the suture removal is avoided, the dragging of an wound can be avoided, the success rate of surgery is increased, and the difficulty of work of medical personnel is reduced.

The invention relates to the technical field of instrument cleaning, in particular to a disinfection supply center instrument cleaning device. The disinfection supply center instrument cleaning devicecomprises a box body, wherein a box cover with an inverted-U-shaped longitudinal section is arranged on the box body in a clamped mode, position limiting mechanisms are arranged on the two sides of the box cover respectively, a rotating rod is vertically arranged in the box body, and limiting rods with cross-shaped cross sections are vertically welded to the upper end and the lower end of the rotating rod respectively. When the disinfection supply center instrument cleaning device is used, one handle of a pair of surgical scissors to be cleaned is hung on a hanging rod, the pair of surgical scissors to be cleaned is in an open state, a disinfectant fluid is supplied into the box body through the water supply mechanism, and the pair of surgical scissors can rotate along with the rotating rod under the driving of a motor, and then the surgical scissors can be cleaned, a knife edge of the surgical scissors in the open state can be thoroughly cleaned, the handle on the surgical scissors can make contact with a rubber rod sleeve and rubber protrusions, and the handle on the surgical scissors can be thoroughly cleaned.