48 results about "Surgical Clamps" patented technology

The present disclosure provides surgical clamps. The clamp has a body with a mouth that opens and closes to permit the body to encircle a bundle of tissue containing a blood vessel which a surgeon wishes to occlude. The clamp also has an articulating arm that rotates on a hinge and passes through apertures of the clamp body. The apertures and / or the articulating arm include ratchet components that permit the surgeon to apply dynamic adjustable tensioning to the tissue and vessel in real time. This dynamic tension permits a surgeon to ensure a specific reduction of blood flow through the vessel.

A surgical clamp jaw is disclosed, having an inner profile and a deflection control profile opposite the inner profile. In one embodiment, the inner profile has a first substantially concave profile in an unclamped position and a second substantially flat profile in a clamped position. In one embodiment, the deflection control profile has one or more sets of corresponding abutment surfaces, at least one set of which is not contacting each other when the inner profile is in the unclamped position and which is contacting each other when the inner profile is in the clamped position. In one embodiment, the surgical clamp jaw defines one or more flexion assistance voids, wherein at least one of the one or more flexion assistance voids is in contact with a gap between one of the one or more sets of corresponding abutment surfaces.

A surgical instrument for applying surgical staples to tissue comprises an end effector with a first and a second jaw that are movable between an open and a closed position. The instrument includes a drive element configured to move distally from the shaft into the end effector to deliver one or more staples to the first and second jaws. The instrument further includes at least one actuating rod extending through the shaft laterally to the drive element relative to the longitudinal axis and configured to move the jaws between the open and closed positions. Positioning the jaw actuator laterally to the drive element creates space for the drive element to deliver multiple staples to the jaws without interfering with the opening and closing of the jaws.

The invention provides a self-adaptive operation clamp for treating auricle pseudocyst, and relates to the technical field of medical operation clamps, the self-adaptive operation clamp comprises an upper clamping plate, a lower clamping plate and a relieving device, one end of the relieving device is installed in the upper clamping plate, and the end, away from the upper clamping plate, of the relieving device extends into the lower clamping plate; through the arrangement of a first buffer rod, a second buffer rod, a rubber block and a plurality of movable assemblies, the situation that the position of a patient is further deteriorated due to the fact that the clamping force is too large is prevented, in the moving process of an upper clamping plate and a lower clamping plate, the clamping force between the upper clamping plate and the lower clamping plate is continuously increased, and the device adapts to the thin position of the patient; by means of the structure, it is guaranteed that the patient position is fixed in the early stage, meanwhile, pain of the patient is relieved, clamping stability is guaranteed in the later stage, it is guaranteed that the fixing force between the upper clamping plate and the lower clamping plate can be adjusted in a self-adaptive mode according to the thickness of the patient position in the early stage and the later stage, and the overall treatment effect is better; and the treatment comfort of the patient is improved.

The present invention relates to bone clamps. In particular, a surgical device is provided, and more particularly, the present invention relates to a surgical clamp that is attached to a patient's bone to assist in a surgical procedure. The surgical clamp is configured so that a clamping element exhibits movement in a plane different from the plane of an actuator for opening and closing the clamping element. Thus, the surgical clamp provides a surgeon with a larger working space when performing surgical work on the spine.

A surgical clamp assembly for clamping tissue and supporting a navigation tracker. The assembly includes a clamp body. Clamp arms are coupled to the clamp body to grip tissue. At least one of the clamp arms includes a distal portion having a clamp surface to grip tissue and a proximal portion that is pivotable relative to the clamp body about a first pivot. A linear displacement mechanism and a carrier are coupled to the clamp body. The carrier is moveable relative to the clamp body along a carrier axis in response to movement of the linear displacement mechanism. The carrier is coupled directly to the proximal portion of the clamp arm. The clamp arm is also pivotable relative to the carrier about a second pivot in response to movement of the carrier.

An articulating clamp for use during surgical procedures. An articulating surgical clamp for temporarily holding, clamping, and positioning patient tissue, for example, a vascular clamp for occluding a vessel. The articulating surgical clamp facilitates adjustment of the shape of the jaws of the clamp, for example, to improve vessel occlusion during surgical procedures. A method of temporarily occluding a blood vessel includes providing an articulating clamp as described herein, configuring the shape of the jaws of the clamp, and positioning the clamp to occlude a blood vessel.

The invention discloses a multi-degree-of-freedom surgical clamp, comprising a base rod, a clamp mechanism and a parallel mechanism. The clamp mechanism comprises a clamp assembly, a distal clamp, a proximal clamp and a plurality of control ropes. The clamp assembly is rotatably connected to the distal clamp, and the distal clamp is provided with a rotating part for connecting the proximal clamp. The parallel mechanism is connected to the proximal clamp, and the proximal clamp is provided with a tensioning wheel. The distal end of the control rope is connected to the clamp assembly, and the proximal end is separated by staggered layers in a first slot and then rewound in a second slot, and is extended to the base rod through a parallel mechanism to control the movement of the clamp assembly and the distal clamp relative to the proximal clamp. The parallel mechanism is used to drive the clamp mechanism to deviate to one side in a parallel state relative to the base rod. The length of the surgical clamp provided by the invention entering the cavity during surgery is effectively shortened, and the dexterous working space of the surgical clamp can be effectively expanded, so that it can meet the operational requirements of performing complex surgeries after entering the internal space through a narrow cavity.

An orthopaedic surgical instrument assembly operable to taper lock orthopaedic components to one another includes a taper assembly instrument (150) having a handle (182) with a draw rod (154, 156) extending therethrough so as to be slidable relative to the handle and a clamp instrument (60) configured to selectively engage the taper assembly instrument so as to move the draw rod relative to the handle. A sacrificial tensile bar component (180) of the taper assembly instrument is configured to break when a predetermined load has been applied to the orthopaedic components. A method of using an orthopaedic surgical instrument assembly to taper lock orthopaedic components to one another is also disclosed.

The invention provides a system for carrying out virtual reality simulations of multiple surgeries for the training of health professionals, which is characterized in that it comprises: a mechanical interface in a case containing two control handles that simulate surgical clamps, and an electronic system that operatively connects to a screen for generating a visual interface containing developed graphics with motor skills exercises; and cameras and sensors that provide real-time information about the position and direction of the user's movements. According to the invention, the cameras are arranged in a virtual reality headset system and the sensors are arranged in the control handles, the cameras and sensors are operatively connected to software that allows a stereoscopic representation to be generated from images taken by the camera, and the visual interface comprises 3D objects having geometries similar to biological or surgical objects.

Disclosed are surgical tools (10) comprising a surgical clamp (20) having at least two, preferably exactly two legs (21) and a base (22) connecting the legs (21). The tools (10) comprise one or more of the following further elements: a handle (30) integrally connected to the clamp (20), wherein the handle (30) is connected to the base (22) of the clamp (20) via at least one first predetermined breaking point (91); a drilling aid (40) having at least two openings (41) whose distance (D) is greater than the distance (d) of the legs (21) of the clamp (20); a drill (50) which is connected, in particular at a first end (51), to the handle (30) via at least one third predetermined breaking point (93); a separation opening (42) which is designed in such a way that, in particular after separation of the drilling aid (40) from the handle (30), the clamp can be received in the separation opening (42), in particular in the region of the first predetermined breaking point (91), in such a way that the clamp (20) can be separated from the handle (30) at the first predetermined breaking point (91). More generally, there are also disclosed one-piece surgical tools (10; 10′) having at least two elements interconnected by predetermined breaking points.

The invention provides a minimally invasive surgery clamp for the surgery department. The minimally invasive surgery clamp is used for solving the technical problem that when existing laparoscopic surgery clamps are used, the axial joint breakage risk exists. The minimally invasive surgical clamp comprises a clamping body, a sleeve, a handle and an operating unit, wherein the sleeve is of a columnar structure with a hollow channel; the clamping body is located in the hollow channel of the sleeve and comprises a forceps handle and a forceps head which is arranged at the front end of the forceps handle and used for clamping an operation target object, and the forceps head can extend out of the front end of the sleeve; the handle is connected with the rear end of the sleeve; the operating unit is located on the handle and comprises a telescopic assembly used for controlling the clamping body to stretch out and draw back and an opening and closing assembly used for controlling the clamping body to be opened and closed, the surgical clamp controls stretching out and drawing back and opening and closing of the clamping body through the operating unit, and compared with existing laparoscope surgical forceps, a shaft joint is removed, the phenomenon of shaft joint breakage does not exist, and safety is high; meanwhile, the structure is simple, and actual use is easier.

Surgical tools (10) are disclosed comprising a surgical clamp (20) having at least two, preferably exactly two, legs (21) and a base (22) connecting the legs (21). The tools (10) comprise one or more of the following additional elements: a handle (30) integrally connected to the clamp (20), wherein the handle (30) is connected to the base (22) of the clamp (20) by at least a predetermined first breaking point (91); a drilling aid (40) having at least two openings (41) the distance (D) between which is greater than the distance (d) between the legs (21) of the clamp (20); a drill bit (50) connected, in particular at a first end (51), to the handle (30) by at least a predetermined third breaking point (93);a parting opening (42) designed such that, in particular after separation of the drilling aid (40) from the handle (30), the clamp can be received in the parting opening (42), particularly in the region of the first predetermined break point (91), such that the clamp (20) can be separated from the handle (30) at the first predetermined break point (91). More generally, one-piece surgical tools (10; 10') having at least two elements interconnected by predetermined break points are also disclosed.

The invention belongs to the technical field of medical instruments, and provides a surgical clamp and a medical instrument, the surgical clamp comprises: a base comprising an insulating seat and a conductive seat, one end of the insulating seat is connected with a flexible joint, the other end of the insulating seat is connected with the conductive seat, and the conductive seat is electrically connected with a power supply; the first clamp and the second clamp are both arranged on the conductive seat; the transmission wheel is rotatably arranged on the base, and the transmission wheel is used for driving the first clamp to rotate relative to the conductive seat and / or the second clamp to rotate relative to the conductive seat; and the first rope comprises an insulating rope section, and the insulating rope section is wound around the transmission wheel and used for driving the transmission wheel to rotate. According to the surgical clamp and the medical instrument provided by the embodiment of the invention, the problem that the insulating structure of the surgical clamp in the prior art is relatively complicated can be solved.

An orthopaedic surgical instrument assembly operable to taper lock orthopaedic components to one another includes a taper assembly instrument having a handle with a draw rod extending therethrough so as to be slidable relative to the handle and a clamp instrument configured to selectively engage the taper assembly instrument so as to move the draw rod relative to the handle. A sacrificial tensile bar component of the taper assembly instrument is configured to break when a predetermined load has been applied to the orthopaedic components. A method of using an orthopaedic surgical instrument assembly to taper lock orthopaedic components to one another is also disclosed.

The invention discloses a method for establishing a coordinate system for a precision forging structural part of operating forceps and application. The method for establishing the coordinate system comprises the following steps: step 1, taking a central plane between a front plane and a rear plane of an assembly rod as a reference plane; step 2, taking a line, projected to the reference plane, of a connecting line of the first positioning boss and the second positioning boss as an x axis; 3, taking a point, projected on the reference plane, of the circle center of the first positioning boss as a circle point of a coordinate system, and then establishing the coordinate system; the coordinate origin is established through the circle features, and the problem that the coordinate origin of the part changes along with the change of the thickness is avoided.

The present invention relates to a minimally invasive surgical clamp, comprising: a bracket; a clamp module, mounted on the bracket; the clamp module comprises a hinged first clamp and a second clamp; the first clamp and the second clamp both comprise a cover body and a base, an elastomer and a flexible PCB board are mounted between the cover body and the base; a sensing module is mounted in the first clamp or the second clamp; the sensing module comprises a sensor chip, a force transmission layer and an elastic layer, the elastic layer and the elastomer are opposite, the sensor chip and the flexible PCB board are electrically connected, and the force transmission layer adheres to the flexible PCB board; when an external force is applied to the clamp module, the elastomer is deformed and squeezes the elastic layer, and the elastic layer transmits the force to the sensor chip through the force transmission layer. The present invention integrates a MEMS three-dimensional force sensor with adjustable sensitivity with a surgical clamp, eliminates the influence of interference factors such as stiffness, friction, gravity, inertia, etc., directly detects different interactive forces, and realizes adjustable sensitivity and adjustable range of surgical instruments.

The invention discloses a minimally invasive surgery clamp and a three-dimensional force measuring method based on the minimally invasive surgery clamp, the whole minimally invasive surgery clamp is a cylinder, and the minimally invasive surgery clamp comprises a contact head, a clamp fixing part, an upper clamping surface, a rack core and a transmission rod; a semi-cylindrical lower clamping surface is formed at the front end of the clamp fixing part, a straight circular flexible hinge is formed in the middle of the clamp fixing part, and a tubular clamp shell is arranged at the rear end of the clamp fixing part; an elliptical flexible hinge is arranged in the clamp fixing part along the axial direction and penetrates through the top end to be fixed with the contact head; the transmission rod is fixed to the rack core, and the rear end of the upper clamping face is matched with the rack core through a gear. The transmission rod drives the rack core to move back and forth under the action of external force, so that the upper clamping surface rotates around the gear to perform opening and closing movement relative to the lower clamping surface; an optical fiber is arranged in the elliptical flexible hinge and is used for measuring the axial stress of the contact head; and two optical fibers are symmetrically arranged in the straight circular flexible hinge and are used for measuring the pressure and lateral stress of the lower clamping surface. According to the invention, stable transmission of the surgical clamp and accurate measurement of force can be realized.

The present invention discloses a minimally invasive surgical clamp and a three-dimensional force measurement method based thereon. The minimally invasive surgical clamp is cylindrical in shape and includes: a contact head, a clamp fixing portion, an upper clamping surface, a rack core, and a transmission rod. The clamp fixing portion has a front end formed into a semi-cylindrical lower clamping surface, a middle portion formed into a straight circular flexible hinge, and a rear end formed into a tubular clamp housing. An elliptical flexible hinge is axially arranged inside the clamp fixing portion, passing through the top end and fixed to the contact head. The transmission rod is fixed to the rack core, and the rear end of the upper clamping surface cooperates with the rack core via a gear. Under the action of an external force, the transmission rod drives the rack core to move back and forth, causing the upper clamping surface to rotate around the gear to open and close relative to the lower clamping surface. An optical fiber is arranged in the elliptical flexible hinge for measuring the axial force applied to the contact head. Two optical fibers are symmetrically arranged in the straight circular flexible hinge for measuring the pressure and lateral force applied to the lower clamping surface. The present invention can achieve smooth transmission of the surgical clamp and accurate force measurement.

The invention relates to a surgical instrument system which comprises a surgical clamp and a control device, the surgical clamp comprises a clamp tube body and a clamping clamp head, the clamp tube body comprises a body tube section and a bent tube section, the near end of the bent tube section is connected with the far end of the body tube section, and the clamping clamp head is arranged at the far end of the bent tube section. The control device is connected with the surgical clamp and used for controlling at least one of the bending action of the bent pipe section and the opening and closing action of the clamping clamp heads. According to the lesion position of a patient needing to be reached, an operator can adjust the bending angle of the bent pipe section through the control device so as to adapt to a nasal cavity channel of the patient, so that the bent pipe section can smoothly pass through the nasal cavity, and the surgical clamp is conveyed to the lesion position; an operator does not need to repeatedly test angles and positions, so that the pain of a patient is greatly reduced, and the operation efficiency is improved.

The present invention relates to the field of medical devices, and in particular to an electric pulse ablation system for treating atrial fibrillation and a method of using the same. The existing radiofrequency ablation or cryoablation for treating atrial fibrillation is not effective and is prone to cause pulmonary vein stenosis and phrenic nerve damage, and balloon dilatation and stent implantation are required later. The present invention provides an electric pulse ablation system for treating atrial fibrillation, including an ablation surgical clamp connected to a power cord and a high-voltage electric pulse generating device, the ablation surgical clamp includes a connecting rod and a clamp body and a grip disposed at both ends thereof, the clamp body includes a fixed clamp and a movable clamp disposed at the end of the connecting rod, and an arc-shaped clamping section is extended from each of the fixed clamp and the movable clamp to form a clamping hole that can be opened and closed, and an electrode sheet group is arranged on two clamping sections corresponding to one side of the clamping hole and / or the inner edge of the clamping hole, the grip is provided with an unlocking mechanism for opening the clamping hole, and the connecting rod is provided with a locking mechanism for closing the clamping hole. The present invention can perform comprehensive ablation on the atrial fibrillation area and effectively block the transmission of ectopic signals.

The invention discloses a handle and a surgical clamp, and relates to the field of medical equipment.The handle comprises a main body assembly and a holding assembly located below the main body assembly, a channel is formed in the main body assembly and used for containing the driving end of a clamp head assembly, and the handle further comprises a deflection driving assembly; the deflection driving assembly comprises a transmission unit and a swing rod connected with the transmission unit, the transmission unit is located in the channel and used for being in transmission connection with the driving end of the tong head assembly, and the swing rod penetrates out of the main body assembly from the channel. The swing rod and the holding assembly are located on the two opposite sides of the near end of the body assembly respectively. The swing rod is suitable for driving the transmission unit to be switched between an initial position and a deflection position under the action of external force, and the deflection driving assembly is in limiting fit with the main body assembly at the initial position and the deflection position. The operation is convenient, and the operation efficiency can be effectively improved.

Surgical instruments capable of delivering PF A treatment to the heart. One example provides a surgical clamp having a plurality of PF A electrodes suitably distributed over the jaws of the clamp for epicardial application to the heart. Another example employs a surgical ablation pen having an array of PF A electrodes along a distal portion thereof for epicardial access and further employs a catheter including one or more reference electrodes for endocardial access. By properly selecting a spatial arrangement of the PF A electrodes and / or an electrode vectoring scheme for the disclosed surgical instruments, a variety of pulsed field configurations unattainable with only endocardial access can beneficially be produced.

The utility model belongs to the technical field of robots, and particularly relates to a surgical robot which comprises a tail end surgical clamp and a mechanical arm, the tail end surgical clamp comprises a fixed cylinder, a movable rod, a connecting rod, a spring, a torsion spring and a clamping clamp, a first through hole is formed in the fixed cylinder and used for movably installing the movable rod, and a second through hole is formed in the top end of the movable rod and used for movably installing the movable rod. Two connecting rods are rotatably mounted through the second through holes and are arranged on the two opposite sides of the axis of the moving rod, clamping pliers are rotatably mounted at the tail ends of the connecting rods, and torsional springs are mounted in the clamping pliers in an embedded mode; the mechanical arm comprises a flexible arm, the flexible arm comprises a shell, a flexible rod and a connecting block, the flexible rod is arranged in the shell in a penetrating mode, the connecting block is arranged at one end of the flexible rod, and the connecting block is used for being connected with the tail end operating forceps. According to the surgical robot, the axial rigidity of the flexible arm can be improved, and the control precision is improved.