36 results about "Surgical Clamps" patented technology

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.

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 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.

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 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 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.

Methods and devices for carrying out pulsed field ablation are disclosed. Specifically, the instant disclosure includes surgical clamps configured to clamp tissue and determine the distance between repositionable jaws and tailor pulse field ablation energy to the thickness of the clamped tissue, which is indicative of the spacing between the repositionable jaws. Also disclosed are methods of calibrating pulse field ablation devices and methods of using pulse field ablation devices.

A pelvic bone plate for use in for stabilizing a fracture of a pelvic bone of a patient includes a brim segment configured to be affixed to a portion of a pelvis of a patient and a quadrilateral surface (QLS) segment coupled to the brim segment via at least one bridge. The QLS segment can include a bearing surface configured to be arranged directly adjacent to a QLS of the pelvis and an engagement surface substantially opposing the bearing surface that is configured to be engaged by a surgical clamp. The brim segment can include a plurality of openings configured to receive one or more fasteners.

A surgical clamp for aligning the margins of incised or wounded tissue has jaws with parallel clamping faces, and a handle for manipulating the clamp to align the margins of the tissue. The jaws are in a normally closed position, however they can be opened by compressing the handle to open the jaws. Prongs project from the inferior surface of the jaws. The clamp is positioned in a desired position over the margins of a wound to be closed, the prongs engage the margins of the wound to be aligned, and the jaws are closed by releasing compressive force on the handle. As the jaws close the prongs help move the tissue into alignment. Suture guide slots through the jaws assist in the placement of precisely placed sutures across the incision. The disclosed surgical clamp is particularly suited for selectively closing and reopening surgical incisions, such as a sclerotomy incision in the eye. Methods are disclosed for using the clamp during intraocular and other surgical or minimally invasive procedures. In one example the clamp is used during implantation into the retina of a scaffold on which choroid and retinal pigment epithelium cells and retina grow in a three-dimensional matrix that mimics the native structure of the retina.

Methods and devices for carrying out pulsed field ablation are disclosed. Specifically, the instant disclosure includes surgical clamps configured to clamp tissue and determine the distance between repositionable jaws and tailor pulse field ablation energy to the thickness of the clamped tissue, which is indicative of the spacing between the repositionable jaws. Also disclosed are methods of calibrating pulse field ablation devices and methods of using pulse field ablation devices.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the device including a first jaw including a plurality of first electrodes and a second jaw including a plurality of second electrodes. The first jaw and the second jaw may be substantially rigid, elongate, and collectively define a longitudinal axis. The first jaw and the second jaw may be configured to engage tissue therebetween during use.

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.