195 results about "Dissection forceps" patented technology

A surgical instrument including a shaft and an end effector. The end effector may comprise a first jaw and a second jaw. The first jaw may be movable relative to the second jaw between an open configuration and a closed configuration. The surgical instrument may comprise a closure assembly which may be operably engaged with the first jaw. The closure assembly may comprise a closure trigger and a dampening system. The closure trigger may be configured to be actuated from a first position to a second position to close the first jaw. The dampening system may be configured to retard the opening of the closure trigger. The dampening system may comprise an aperture configured to receive the projection at a first end of the aperture and a seal configured to form a fluid seal between said projection and said aperture sidewall.

A surgical instrument with articulated jaw structure includes a frame and two jaws. The jaws have proximal portions that are mounted to each other for movement in a substantially parallel relation between a fully open position wherein the jaws are separated for receiving tissue therebetween and an approximated position wherein the jaws are closer together. Preferably, the jaws are in the fully open position when the distal portion of at least of the jaws is located in an extended position and are in the approximated position when the distal portion of the extended jaw or jaws is located in a retracted position. The surgical instrument may further include a detachable knife assembly and knife actuating mechanism.

A surgical device is disclosed. The surgical device includes: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; and an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis. The surgical device also includes a first rotatable drive shaft including a first gear element meshingly engaged with a pivoting gear element fixedly coupled to the pivot pin, wherein rotational and longitudinal movement of the first rotatable drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin that is perpendicular to the first and second longitudinal axes.

An electrosurgical bipolar forceps for sealing and dividing tissue is disclosed. The forceps includes one or more shaft members having an end effector assembly disposed at a distal end thereof. The end effector assembly includes two jaw members movable from a first position to a second position wherein the jaw members cooperate to grasp tissue therebetween. Each of the jaw members includes an electrically conductive surface adapted to connect to a first energy source which communicates electrosurgical energy through tissue held therebetween. The forceps also include an energy-based cutting element adapted to connect to a second energy source and disposed between the jaw members. The energy-based cutting element is moveable from a first configuration when said jaw members are in the first position to a second configuration wherein the energy-based cutting element is disposed at an angle between the jaw members.

An electrosurgical forceps includes a shaft having a pair of jaw members at a distal end thereof, the jaw members being movable about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for grasping tissue. A movable handle actuates a drive assembly to move the jaw members relative to one another. One (or both) of the jaw members is adapted to connect to a source of electrical energy such that the jaw members are capable of conducting energy to tissue held therebetween. A flexible insulating boot is disposed on an exterior surface of one or both jaw members and about the pivot and at least one retention element is configured to operably couple to both a proximal end of the jaw members and a distal end of the flexible insulating boot.

An electrosurgical forceps includes a shaft having a pair of jaw members at a distal end thereof that are movable about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for grasping tissue. A movable handle is included that actuates the shaft to move the jaw members relative to one another. One or both of the jaw members are adapted to connect to a source of electrical energy such that the jaw members are capable of conducting energy to tissue held therebetween. An insulating boot is disposed on at least a portion of an exterior surface of one or both jaw members, about the pivot and at a distal end of the shaft. The insulating boot includes an inner flexible portion and an outer shell that is operably engaged with one or both of the pair of jaw members.

A method for gastric reduction surgery includes the step of applying at least one clamp to the stomach in a manner forming a gastric pouch. The clamp includes a clamp body shaped and dimensioned to create a gastric pouch with a standard size from approximately 15 cc to approximately 30 cc.

A surgical instrument comprises an end effector including a pair of jaw members configured to move with respect to one another between an open configuration and a closed configuration for clamping tissue. At least one jaw member includes an elongate cam slot extending in a longitudinal direction over a substantial a length a tissue clamping surface of the at least one jaw member. A plurality of electrically isolated, and longitudinally spaced electrodes is supported by the tissue clamping surface and is configured to deliver electrosurgical energy to tissue. A reciprocating member engages the elongate cam slot and is extendable to a sealing position with respect to each of the electrodes to define a predetermined gap distance between a particular electrode and an opposing tissue clamping surface.

Jaw assemblies for a surgical stapler are provided. The jaw assemblies comprise a first jaw having a first clamping surface and a plurality of staples disposed therein and second jaw assembly having a second clamping surface. The jaw assemblies can be actuated from a closed configuration in which the first clamping surface contacts or is adjacent to the second clamping surface to an open configuration in which the second jaw is pivoted away from the first jaw to a stapling position in which the second clamping surface is parallel to the first clamping surface and spaced apart from the first clamping surface. A pivoting link or sliding pivot joint can couple the second jaw to the first jaw to facilitate motion between the closed position, the open position, and the stapling position.

What is described here is an instrument for medical and particularly endoscopic applications, comprisinga proximally disposed operating unit,a distally disposed multi-part functional element having individual parts which are jointly and additionally independently movable, such as a multi-part forceps jaw, andan elongate connecting part which is disposed between the operating unit and said forceps jaw.The invention is characterized by the provisions that said operating unit is so configured that it can be grasped around by one hand, and that said operating unit comprises at least two pivotable and / or tiltable elements which are a component of the surface of said operating unit and which, when moving, control each one part of said multi-part functional element.

A surgical ligation clip includes first and second jaws that are connected at their proximal ends to each other by a living hinge. Each of the jaws includes a clamping surface that is in opposition to the clamping surface of the other jaw. In order to prevent the body vessel from moving proximally beyond the clamping surfaces of the first and second jaws, a tissue stop is formed at a proximal end of the clamping surfaces of the surgical ligation clip. In embodiments, the tissue stop includes a first stop member that extends from the proximal end of the clamping surface of the first jaw towards the second jaw and a second stop member that extends from the proximal end of the clamping surface of the second jaw member towards the first jaw.

A surgical instrument includes a housing having first and second actuators and a shaft extends therefrom. End effector attaches to shaft and includes a first actuating device and a tissue treatment member. First actuating device is actuated by first actuator and includes first and second jaw members that actuate relative to one another about the first pivot. In a first position, jaw members are disposed in a spaced relation and in a second position cooperate to perform a first surgical procedure on tissue positioned therebetween. Second actuator deploys tissue treatment member relative to first jaw member from a first condition to a second condition. Tissue treatment member contacts the first jaw member in a first condition and a portion of the tissue treatment member is spaced away from the first jaw member and forms a loop between the tissue treatment member and first jaw member in a second condition.

Apparatus and methods for passing multiple sutures in tissue repair and / or other mini-open procedures. The apparatus includes a pair of jaws mounted on a distal end of a shaft, a hand assembly mounted on a proximal end of the shaft, and a needle mounted on the hand assembly and passing through a cannulation of the shaft. The pair of jaws includes a lower jaw and an upper jaw, the lower jaw being provided with a slot configured to sequentially engage multiple sutures inserted into the instrument. The handle assembly has a cam mechanism and a finger lever with a ratchet and a releaser with a hook, the handle assembly being designed to move the needle from a first position to a second position, and to thereby sequentially capture, in the needle, each of the multiple sutures inserted in the instrument, for subsequent passing through tissue.

Apparatus and methods for passing multiple sutures in tissue repair and / or other mini-open procedures. The apparatus includes a pair of jaws mounted on a distal end of a shaft, a hand assembly mounted on a proximal end of the shaft, and a needle mounted on the hand assembly and passing through a cannulation of the shaft. The pair of jaws includes a lower jaw and an upper jaw, the lower jaw being provided with a slot configured to sequentially engage multiple sutures inserted into the instrument. The handle assembly has a cam mechanism and a finger lever with a ratchet and a releaser with a hook, the handle assembly being designed to move the needle from a first position to a second position, and to thereby sequentially capture, in the needle, each of the multiple sutures inserted in the instrument, for subsequent passing through tissue.

An electrosurgical instrument includes an elongated shaft extending distally from a housing and an actuating mechanism operably coupled to a proximal portion of the elongated shaft and configured to move the elongated shaft. First and second jaw members are coupled to a distal portion of the elongated shaft. The first jaw member is pivotable relative to the second jaw member between open and closed positions. An electrically conductive tissue sealing surface is disposed on each of the jaw members and is adapted to connect to a source of electrosurgical energy. A tissue-dissecting electrode is disposed on a distal end of at least one of the jaw members in spaced relation to the tissue sealing surface and is adapted to connect to a source of electrosurgical energy. An insulator couples the tissue-dissecting electrode to the jaw member and electrically insulates the tissue-dissecting electrode from the jaw member.

A medical device is provided having a means for actuating a pair of opposing jaw members. The jaw members are movable relative to one another from a first position, wherein the jaw members are disposed in a spaced apart relation relative to one another, to a second position, wherein the jaw members cooperate to grasp tissue therebetween. An ablation mechanism is connected to at least one of the jaws members, such that the jaw members are capable of conducting ablation energy through the tissue grasped therebetween.

An embodiment of the present invention provides a surgical instrument including: an end tool including a first jaw and a second jaw configured to rotate independently; an operator including a pitch operator controlling a pitch motion of the end tool, a yaw operator controlling a yaw motion of the end tool, and an actuation operator controlling an actuation motion of the end tool; an operating force transmitter including a first jaw wire connected with the first jaw to transmit an operation of the operator to the first jaw, a second jaw wire connected with the second jaw to transmit an operation of the operator to the second jaw, and one or more differential members transmitting a rotation of the yaw operator or the actuation operator to the first jaw or the second jaw via the first jaw wire or the second jaw wire; and a connector configured to extend in a first direction (X axis) and having one end portion coupled to the end tool and the other end portion coupled to the operator to connect the operator and the end tool, wherein the pitch operator is configured to rotate around a second direction (Y axis) perpendicular to the first direction; and at least a portion of the operator is configured to be more adjacent to the end tool than a rotating axis of the operator in at least any one operation state of the operator.

A method for gastric reduction surgery includes the step of applying at least one clamp to the stomach in a manner forming a gastric pouch. The clamp includes a clamp body shaped and dimensioned to create a gastric pouch with a standard size from approximately 15 cc to approximately 30 cc.

The invention relates to a medical gripping and / or cutting instrument having a shaft on whose distal end a tool is positioned consisting of at least two jaw members and on whose proximal end a handle is positioned consisting of at least two gripping members. For opening and closing, at least one jaw member of the tool can move by means of a rotatably configured gripping member of the handle with respect to the other jaw member of the tool, and the rotatable gripping member of the handle can be secured by means of a notching mechanism on the at least one other gripping member of the handle, with the jaw members in an at least partly closed position. To produce a medical gripping and / or cutting instrument which allows a simple and rapid unnotching of the gripping members of the handle, it is proposed with the invention that a portion of at least one gripping member of the handle can move with respect to the remaining portion of this gripping member in such a way that the notching mechanism can be released, with the gripping members in an essentially unchanged position with respect to one another.

The current invention is a modification to suture passing devices which employ a configuration of having upper and lower jaws to both grasp a tissue and deploy a suture loaded needle from one of the jaws. The current invention allows for an operator-controlled means to grasp the passed suture with a mechanism located within the jaw opposite the side of needle deployment. A sliding block located within the jaw opposite the side of needle deployment is controllable by the operator near the handle of the device and provides movement of the sliding block against the inner surface of the distal end of the jaw to exert compression on the passed suture. This compression allows for grasping and retrieval of the passed suture.

The invention relates to a surgery medical instrument, in particular to a push-pull type digestive system minimally invasive surgery haemostatic forceps which is large in the occlusion force, simple in operation and free of transverse displacement. The forceps comprises a forceps head (1) and a forceps body (2), a cavity is formed by the interior of the forceps body (2), the forceps head (1) is connected with the front end of the forceps body (2) through a rotating shaft (3), end sockets arranged in the forceps body (2) are in a hinged connection with connecting rods (4) respectively, free ends of two connecting rods (4) are in the hinged connection with a transmission bar (5) together, a gear rack is arranged on one side of the transmission bar (5), the transmission bar (5) is connected with a push rod (7) through a steering gear (6), one side of the push rod (7) is provided with a gear rack, and one end of the push rod (7), which is far from the forceps head (1), extends out of the forceps body (2). By means of the connection of the connecting rods (4), the transmission bar (5), the steering gear (6) and the push rod (7), the vertical movement of the push rod (7) is converted to the chelation of the forceps head (1). The push-pull type digestive system minimally invasive surgery haemostatic forceps has the advantages that the design is reasonable, the structure is exquisite, the forceps clamping is stable, the usage is convenient, the required space of the operation is small, and the operation is flexible.

The invention relates to a clamp (10) for a flexible tube, in particular an infusion tube, composed of a substantially U-shaped plastic band, the free end (111) of the first branch (11') of the U being bent over, so as to form the head (11) of the clamp, to the free end (121) of the second branch, called the back (12), in such a way that, in the closed position, the free end (121) of the back (12) is situated resting under the free end (111) of the head (11), whereas, in the opened position, the free end (121) of the back (12) is situated at a distance above the free end (111) of the head (11), the clamp having a pair of openings (114, 134) to allow a flexible tube to extend through the clamp and be supported by the latter, and two opposite projections (113, 123) for obturating the flexible tube by compressing it when the clamp is in the closed position. The invention also relates to a pump provided with means for opening a clamp according to the invention, to an infusion kit providedwith a clamp according to the invention, and to a combination of a pump according to the invention and an infusion kit according to the invention. According to the invention, locking means (112, 122)are provided in order to ensure that the head end (111) does not move away from the back end (121) when the clamp (10) is in the closed position.

The invention discloses bipolar electric coagulation surgical scissors, belonging to the technical field of medical appliances. The bipolar electric coagulation surgical scissors comprise a handle assembly and a scissors clamp assembly, wherein the handle assembly comprises a fixed handle, a movable handle, a forceps lever, two pull levers, a wire and a plug, the fixed handle is connected with the movable handle, the forceps lever is sheathed into the fixed handle, and the pull levers pass through the forceps lever; an insulating layer is respectively arranged between the two pull levers and the forceps lever and between the two pull levers; the tail ends of the pull levers are connected with the wire, and the other end of the wire is connected with the plug; the scissors clamp assembly comprises two scissors clamps, scissors blades, a ceramic forceps base and forceps holder pins; the scissors blades are fixed on the scissors clamps; the ceramic forceps base is fixed at the front end of the forceps lever, the forceps holder pins pass through the ceramic forceps base and are fixed, and the two scissors clamps are sheathed into the forceps holder pins; and the tail ends of the scissors clamps are connected with the pull levers respectively. The bipolar electric coagulation surgical scissors disclosed by the invention have reasonable structure design, and can conduct electric coagulation hemostasis while shearing a tissue or an organ of a human body with no need of replacing surgical instruments. The bipolar electric coagulation surgical scissors are convenient for operation,and surgery efficiency can be improved by the adoption of the bipolar electric coagulation surgical scissors.

The invention discloses a surgical instrument for dissecting tissue. The surgical instrument includes an end effector supported on a distal end of an elongated shaft, a clamping rod, and a measurement mechanism. The clamping rod extends through the elongated shaft and is operatively associated with the end effector to transition the first and second jaw members between open and clamped positions. The measurement mechanism includes a cylinder, a biasing member, and a locking member. The biasing member is disposed within the cylinder and is disposed over a proximal end of the clamping member distal to a piston disposed at a proximal end of the clamping rod. The cylinder is operatively associated with a moveable handle such that as the moveable handle is moved towards an actuated position, the cylinder is moved proximally such that the biasing member urges the clamping rod proximally to move the first and second jaw members towards the clamped position.

A surgical instrument is provided. The surgical instrument includes a housing having a shaft operably supported thereon and a jaw member supported at a distal end of the shaft. The jaw member is movable between open and clamping configurations. The surgical instrument also includes a probe that has proximal and distal ends. The distal end has an active blade thereon that is configured to treat tissue when the jaw member is in a clamping configuration. The proximal end of the probe is configured to selectively engage a generator that is configured to selectively couple to the housing. An adjusting assembly is operably supported on the housing and is configured to selectively rotate the probe to engage the proximal end of the probe to the generator to secure the generator to the housing.