2482results about "Endoscopic cutting instruments" patented technology

A surgical tool including an inelastic and elastic cable to impart a bend to a shaft. A steering assembly is coupled to the shaft and configured to cause longitudinal displacement of the shaft relative to the body to tension the cables to bend the shaft bendable section in a direction of the flexible inelastic cable. The surgical tool may include an active tip with one of the cables being configured to supply energy to the active tip. The surgical tool may be a shaver that includes a shaver shaft having a flexible section configured to be aligned with a shaft bendable section with the motor of the shaver supported on a cradle of a body. The shaft bendable section may be formed by links with the flexible inelastic cable being arcuately spaced apart from tabs within sockets that engage adjacent links.

An angled intraosseous access system including a guide block and / or a guide plate is disclosed. The system includes a driver having a body, and including a needle assembly rotatably coupled thereto, the needle assembly defining a needle axis. One of the guide block or the guide plate is configured to engage a skin surface and align the needle assembly axis at a predetermined angle relative to the skin surface to access the medullary cavity at the predetermined angle. Advantageously, the angled needle of the intraosseous access system can mitigate pain during infusion and mitigate backwalling.

A fluid management system for use in a tissue resection procedure includes a controller. An inflow pump is operated by the controller and configured to provide fluid inflow through a flow path to a site in patient's body. An outflow pump is operated by the controller and configured to provide fluid outflow through a flow path from the site in patient's body. A motor driven resecting device may be provided for resecting tissue at the site. The controller is configured to actuate an inflow pump and an outflow pump in response to various signals and various algorithms are provided to provide malfunction warnings and assure safe operation.

To provide a device assembly and a method for treating heart failure by normalizing an elevated blood pressure in the left atrium of the heart of a mammal.SOLUTION: Disclosed herein is a transcatheter interatrial septum excision device assembly configured to create a sized interatrial aperture between right and left atria of a heart for relief of an elevated left atrial pressure. The device assembly comprises a delivery catheter, a tissue stabilizer attached to a first catheter having a central lumen and a penetrating tip that permits passage of a guidewire, and a cutter attached to a second catheter having a central lumen that permits passage of the first catheter. Alternative configurations comprise a (third) catheter having a central lumen that permits passage of the components to and from the right atrium, a tissue retention mechanism, and an optional coaxial alignment mechanism.SELECTED DRAWING: Figure 1

An attachment device for securing an elongate member to a medical instrument, the attachment device comprises a base comprising a top surface, a bottom surface, a first base aperture, and a second base aperture, and an adhesive at least partially disposed on the bottom surface of the base. The attachment device is free from adhesive on the bottom surface of the base between the first base aperture and the second base aperture.

An angled intraosseous access system includes a guide assembly including a guide block and a guide plate. The system can include a driver and a needle assembly rotatably coupled thereto. The guide assembly is configured to align the needle at a predetermined angle relative to the medullary cavity. Advantageously, the angled needle of the intraosseous access system can mitigate pain during infusion and mitigate backwalling.

Devices and methods are described for accessing an intracranial extravascular space of a patient. For example, this disclosure describes devices and methods for drainage of a subdural hematoma disposed within an intracranial extravascular space of a patient.

The present disclosure provides a tissue-removing catheter for removing tissue in a body lumen. The tissue-removing catheter includes an elongate drive member and a tissue-removing element. The elongate drive member has proximal and distal ends with a length and a longitudinal axis extending between the proximal and distal ends. The elongate drive member is sized and shaped to be received in the body lumen and rotates about its longitudinal axis. The elongate drive member further includes first and second longitudinal portions. The first longitudinal portion is proximal to and stiffer than the second longitudinal portion. The tissue-removing element is operatively coupled to the distal end of the elongate drive member and rotates by the elongate drive member to remove the tissue in the body lumen.

An access device for accessing an intervertebral disc having an outer shield comprising an access shield with a larger diameter (˜16-30 mm) that reaches from the skin down to the facet line, with an inner shield having a second smaller diameter (˜5-12 mm) extending past the access shield and reaches down to the disc level. This combines the benefits of the direct visual microsurgical / mini open approaches and the percutaneous, “ultra-MIS” techniques.

A thrombus engagement tool having a flexible shaft, a clot engagement tip, and a handle. The engagement tip may include one or more radially outwardly extending structures such as a helical thread. The helical thread can be advanced through a catheter to engage a clot. The handle may be configured to be rotated by hand. When the handle is rotated, the helical thread of the engagement tip can rotate in the same direction thereby allowing the helical threat to engage the clot. The helical thread can wrap around the flexible shaft at least about one, two, or four or more full revolutions, but in some cases no more than about ten or no more than about six revolutions.

A tissue resection apparatus is provided which includes an outer tube with a helical coil disposed on a distal end. The coil is provided with a first electrode. A central tube has a distal edge profile comprising one or more surface segments. One of the surface segments includes a second electrode. The central tube is slidably disposed within the outer tube and positioned such that second electrode opposes at least a portion of the first electrode. A cutting tube is slidably disposed within the central tube and includes a cutting edge.

In some examples, a capture assembly configured to remove material of interest, including blood clots, from a body region, including but not limited to the circulatory system, includes a body configured to receive the material of interest. The body can be configured to axially lengthen and shorten.

A surgical instrument comprises a hand-held portion configured to be manipulated by a user and a pivoting portion operatively coupled to the hand-held portion. The pivoting portion is configured to pivot with respect to the hand-held portion according to first and second degrees of freedom. The pivoting portion includes an accessory drive motor, an accessory drive member configured to be driven by the accessory drive motor, a plurality of lead screws, a carriage including a central aperture axially extending through the carriage and configured to interface with and linearly translate along the plurality of lead screws, and a linear drive motor configured to rotate the plurality of lead screws to linearly translate the carriage relative to the hand-held portion with respect to a third degree of freedom. The accessory drive member extends through and is configured to move within the central aperture of the carriage.

Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and / or skin repositioning and / or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

A minimally invasive ultrasonic knife head and a minimally invasive ultrasonic bone power system, the minimally invasive ultrasonic knife head comprises a knife rod and a head end, the head end is located at the front end of the knife rod, the head end is curved to the side at a certain angle, and the knurled teeth or bevel teeth are arranged on the curved part. By bending the head end, the bone tissue around the intervertebral foramen mirror can be removed, so that the operator has more operation space under the limited foramen mirror channel, and the bone removal efficiency is improved. The knurled teeth or bevel teeth are arranged on the curved part, so that the bone tissue around the intervertebral foramen mirror can be better polished or cut.

A debridement device for human body pathological tissue, comprising an insertion tube, a rotary cutting head and an operating handle. The insertion tube comprises an inner tube and an outer tube fitted outside the inner tube; an aspiration cavity is formed in the inner tube, and an irrigation cavity is formed between the inner tube and the outer tube; the rotary cutting head comprises a housing and a rotary cutting blade arranged in the housing; the interior of the housing is communicated with the aspiration cavity; a rotary cutting opening exposing the rotary cutting blade is formed on the housing; a notch corresponding to the rotary cutting opening is formed on the outer tube; the operating handle is connected to the insertion tube and the rotary cutting head so as to control the rotary cutting blade to cut human tissue at the rotary cutting opening, suction debris by means of the aspiration cavity, and use the irrigation cavity to flush the position where the rotary cutting head is located. The device can carry out both rotary cutting and aspiration on human body pathological tissue, reduce residues of necrotic tissue, effectively protect surrounding normal tissues and blood vessels, reduce the possibility that a patient requires repeated surgery, and improve the efficiency, effect and safety of minimally invasive therapy.

The magnetic traction tool comprises an endoscope device and a traction device, the traction device is clamped at one end of the endoscope device, the traction device is composed of a rubber ring and a magnetic ring, the traction device is composed of a shell and a magnet, and the magnet is connected with the shell through an adjusting mechanism. The endoscope device is adopted for feeding the traction device, the periphery of the mucous membrane is fixed through the traction device, mucous membrane traction is conducted through the traction device on the outside, the mucous membrane on the periphery of a focus is stripped through magnetic traction, the operation convenience is effectively improved, and the problem that mucous membrane resection is inconvenient due to the narrow operation area is solved; the operation difficulty is effectively reduced, when the magnet ring is attracted through the magnet, magnetic force adjustment can be achieved through the adjusting mechanism, adjustment can be conducted according to the distance of the traction position, it is guaranteed that traction is in place so that smooth stripping of the mucous membrane can be guaranteed, magnetic traction stripping can not be limited by the traction direction, and mucous membrane resection convenience is guaranteed.

The invention relates to an adjustable electric intracavity cutting stitching instrument, and relates to the technical field of stitching instruments. The device comprises a handle, a rotating head, a suturing rod and a suturing head, the suturing rod is connected with the handle, the suturing rod is sleeved with an outer pipe, the handle is used for driving the outer pipe to move in the length direction of the suturing rod, and the rotating head is rotationally connected to the handle, fixed to the outer pipe and used for driving the outer pipe to drive the suturing rod to rotate. The sewing head is rotatably connected to the end, away from the handle, of the sewing rod through a rotating assembly, a driving assembly is arranged on the sewing rod, connected with the rotating assembly and used for driving the rotating assembly to rotate, a handle and a rotating motor are arranged on the rotating head, the rotating motor is connected with the driving assembly through an electromagnetic clutch, and the handle is rotatably connected to the rotating head. And the base is fixed with the driving assembly. According to the invention, manual or automatic adjustment can be carried out according to conditions so as to realize the effect of accurate control or rapid control.

Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and / or skin repositioning and / or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

A surgical device includes a jaw assembly defining a first longitudinal axis and including a first jaw and a second jaw moveable relative to the first jaw; an elongated body defining a second longitudinal axis and coupled to a proximal end of the jaw assembly, wherein the jaw assembly is configured to articulate about an articulation axis transverse to the second longitudinal axis relative to the elongated body; and a handle assembly coupled to a proximal end of the elongated body and including at least one motor mechanically coupled to the jaw assembly and a control assembly including a first control button and a second control button, wherein actuation of the first control button moves the second jaw in approximation relative to the first jaw and actuating the second control button moves the second jaw away from the first jaw, and actuating the first and second control buttons moves the jaw assembly to a centered position in which the first and second longitudinal axes are substantially aligned, the handle assembly further includes an illumination member configured to output a light pattern indicative of a status of the surgical instrument.

The surgical handpiece system includes a high-speed surgical burr assembly and a surgical handpiece assembly. The high-speed surgical burr assembly has a nose tube and a drive shaft at least partially disposed within the nose tube. A cutting tool is coupled to a distal region of the drive shaft. The cutting tool and drive shaft are configured to rotate relative to the nose tube. The surgical handpiece system includes a hub and a rotatable drive chuck for alignment with and coupling to the nose tube and drive shaft. A motor is configured to rotate the rotatable drive chuck, the drive shaft, and the cutting tool when the drive shaft is coupled to the rotatable drive chuck.

A method performed by a surgical system. The method determines that an ultrasonic instrument is in a low-power state The method determines a resonance frequency of an end effector of the ultrasonic instrument and determines a temperature of the end effector based on the resonance frequency. A notification is displayed on a display of the surgical system based on the temperature.

The invention discloses a medical laser apparatus, an endoscope controller, and a medical system. The medical laser apparatus includes: an energy guide; a first energy source configured to generate energy for treating the target tissue through the energy guide; a light source having at least two illumination modes for providing illumination to the target tissue; a second energy source, different from the light source, configured to emit a first aiming beam and a second aiming beam through the energy guide towards the target tissue, the second aiming beam having at least one characteristic different from the first aiming beam; and a controller comprising hardware, the controller configured to: receive a signal indicative of an illumination mode of the at least two illumination modes that currently illuminates the target tissue; selecting an aiming beam from the first aiming beam and the second aiming beam based on a current illumination mode for illuminating the target tissue; and controlling the second energy source to emit the selected aiming beam to the target tissue.

A medical device includes a flexible catheter including a distal end, at least one lumen, and a longitudinal axis, an incision device coupled to the distal end of the catheter, and a distal tip coupled to and projecting from the incision assembly. The incision device comprises a wire that includes one or more electrodes for creating an incision through a pericardium. The wire has a first end fixed to an external surface of the distal tip and a second end extending through the distal opening of the distal tip. The wire is structured such that in a deployed configuration, (i) the portion of the wire extending from the first end of the wire to the distal opening of the body of the distal tip forms a shape comprising a protrusion extending relative to a longitudinal axis of the transcatheter and (ii) the electrode is positioned proximal to the protrusion.

A mechanical continuous myocardial tissue resection system, comprising: a housing, a resection cavity component, a pull lever component, an axial rotary resection knife component, a tissue locking component, a locking triggering component and an excitation component. The tissue locking component in the system is movably inserted into the resection cavity component and can lock a resection target tissue entering the internal cavity of the resection cavity component from a resection window. The locking triggering component is configured to be capable of locking the tissue locking component and can be triggered to release the locked tissue locking component. The pull lever component is configured to be capable of driving the tissue locking component and locking same with the locking triggering component. The excitation component is configured to be in linkage with the axial rotary resection knife component and the locking triggering component. The system can realize one-time puncture and continuous rotary resection in the state of a minimally invasive incision, thereby achieving precise resection of myocardial tissue.

A biocompatible surgical article is provided for cutting biological tissue or implantation in contact therewith. The surgical article has a composition of tungsten carbide-nickel with a percentage of additional metal carbides present. A typical composition in total weight percentages is WC 85 to 95%, Cr3C2, Mo2C, VC each alone or in combination being present from 0 to 2%, and Ni constituting the remainder. The composition is formed to have a mean grain size of between 200 and 800 nm with a particle dispersion index (PdI) corresponding to (the square of the standard deviation) / (mean grain size) of between 0 and 0.6, and in some embodiments between 0.02 and 0.2.

A low-friction medical device is provided having roller-assisted tension members and a friction-reducing curved guide path. The device includes a first link, a second link, and a tension member. A proximal end portion of the first link is coupled to an instrument shaft. A proximal end portion of the second link is rotatably coupled to a distal end portion of first link about a first axis. The second link defines a curved guide path and a cable extends from the first link through the curved guide path to a distal end of the second link and couples with a tool member. A roller having a roller surface is coupled to the second link such that the roller surface is aligned with a portion of the curved path and contacts the cable therein. The curved guide surface has a small fleet angle.

The present invention relates to the technical field of electrocoagulation cutting instruments, and in particular, to a handheld pressure-adjustable irrigation and suctioning electrocoagulation cutting instrument, comprising: a connecting rod, wherein an irrigation channel and a suctioning channel are spaced in the connecting rod; a cutting head is disposed at the left end of the connecting rod; a suctioning port communicated with the suctioning channel is formed in the cutting head; the head end of the irrigation channel penetrates through the left end of the connecting rod; a connector is disposed at the right end of the connecting rod; a mechanical conveying mechanism for conveying tissue debris cut by the electrocoagulation cutting instrument from the tail end of the suctioning channel to a middle way of the connector is disposed on the connecting rod; the front way and the rear way of the connector are respectively provided with an irrigation connector and a suctioning connector; a partition block for partitioning the front way from the other two ways is disposed in the connector; a regulating valve communicated with the tail end of the irrigation channel is disposed at the middle of the connecting rod; a transfer pipe is disposed between the regulating valve and the front way of the connector. The present invention provides an electrocoagulation cutting instrument capable of avoiding pipe blockage and achieving a good cleaning effect.

Robotic surgical systems configured to control the movement and actuation of a single robotic arm, and the movement and actuation of first and second tools carried in a tool holder at a distal end of the robotic arm.

The present subject matter provides a shovel configured to attach to a distal edge of an endoscope and protrude from a lower part of the distal edge, and an endoscope comprising the shovel attached to a distal edge of the endoscope. Additional embodiments of the shovel and the endoscope comprising the shovel are disclosed herein.