691results about "Endoscopic cutting instruments" patented technology

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.

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.

This invention discloses a medical soft tissue shaving razor assembly, including a shaving blade assembly, a reducer assembly, a housing, a suction device, and an interface portion. The shaving blade assembly comprises a hollow outer blade assembly and an inner blade assembly, with the inner blade assembly nested within the outer blade assembly. Both the outer and inner blade assemblies have an opening at one end for soft tissue suction. The reducer assembly is fixed within the housing and includes a reducer housing and a transmission gear set. The other end of the outer blade assembly is connected to the reducer housing, and the other end of the inner blade assembly is connected to the transmission gear set. The interface portion includes an inner interface and an outer interface. The inner interface is connected to the transmission gear set, and the outer interface is fixedly connected to the reducer housing. The suction device includes a negative pressure suction tube that communicates with the cavity of the inner blade assembly. This medical soft tissue shaving razor assembly, by separating the shaving blade assembly from the driver and altering the communication path of the negative pressure suction tube, effectively protects the motor from damage.

To provide a suction and irrigation system for maintaining in situ pressure of an anatomical environment at an anatomical site under control during an endoscopic procedure.SOLUTION: Systems and methods for providing in situ pressure control in an anatomical environment during a procedure are disclosed. The exemplary irrigation and aspiration system includes a user input configured to receive from a user a desired pressure to be applied to the anatomical environment or a desired flow condition corresponding to the desired pressure. The system includes a pressure sensor for sensing pressure in or near an anatomical environment during a procedure, and a pressure sensor for sensing a pressure in the anatomical environment during the procedure, or a control module for adjusting one or more of an irrigation flow rate or an aspiration flow rate of at least one working channel of the medical device to maintain a desired flow condition in the working channel.SELECTED DRAWING: Figure 1

A surgical system includes an ultrasound device and a surgical instrument. The ultrasound device includes a shaft having a body defining a longitudinal axis and including a lumen extending coaxially therethrough, and an ultrasound sensor assembly configured to enable ultrasound imaging of a field of view. The ultrasound sensor assembly is disposed at a distal end portion of the body of the shaft, offset relative to the longitudinal axis, and oriented such that the field of view is offset relative to the longitudinal axis. The surgical instrument is configured for removable insertion through the lumen of the body of the shaft and to extend distally from the distal end portion of the body of the shaft.

In some embodiments, an apparatus includes a handle assembly configured to be coupled to a tissue excision device. The tissue excision device can be configured to excise a target tissue site from a lung. The handle assembly can be configured to transition between a first operation and a second operation mode. The handle assembly in the first operation mode configured to form a portion of a tissue column. The handle assembly in the second operation mode configured to separate the tissue column from surrounding tissue, the handle assembly configured to transition from the first operation mode to the second operation mode after the tissue excision device forms a tissue column including the target tissue site.

To provide systems and methods of in situ unclogging a working channel in a medical device during a procedure.SOLUTION: An exemplary unclogging system comprises a flow sensor to sense a flow rate through a working channel, and a control module to detect a channel state indicating the presence or absence of clogging based on the flow rate. In the presence of channel clogging, the control module can control one or more of an irrigation source or a suction source to provide irrigation fluid or suction pressure, respectively, to unclog the obstructed channel. The control module can adjust one or more of an irrigation flow rate or a suction flow rate through the working channel to maintain a desired pressure of an anatomical environment at an anatomical site, or to maintain a desired flow condition in the working channel, during a procedure.SELECTED DRAWING: Figure 1

A device for tissue shaving includes an elongated outer cannula having a tissue pinching distal end, an elongated inner shaft extending through the cannula and having a tissue shaver at a distal end. The tissue pinching distal end of the outer cannula is configured to pinch a portion of the tissue and the tissue shaver of the inner shaft is configured to be rotated and cut the pinched tissue portion via a shearing action.

Medical devices that include a trigger assembly for a rotatable catheter and methods of use are described. An example medical device includes a housing, a catheter, a drive assembly, and a trigger assembly. The trigger assembly is partially disposed within the housing and includes a trigger, a drive initiator, a drive member, a flip drive, and a biasing member. The trigger is moveable between a first position and a second position relative to the housing. The flip drive is moveable between a neutral position, a first drive position, and a second drive position. The drive assembly moves relative to the housing when the flip drive is in the first drive position and the trigger is moved from its first position to its second position.

The present disclosure relates to tissue cutting tools that can be used for forming an opening in a target tissue, such as a host leaflet within which a guest prosthetic valve can be expanded. In an example, the tissue cutting tool comprises an actuation tube and a blade support tube extending therethrough. A distal portion of the blade support tube can be coupled to a distal portion of the actuation tube, and a proximal portion of the blade support tube can be axially movable with respect to a proximal portion of the actuation tube. The blade support tube also includes a bendable section extending between its distal and proximal portions, and configured to transition between unbent and bent configuration thereof. At least one blade is coupled to at least one arm of the bendable section.

The LNTPI is a surgical instrument used to cut through fibrotic and edematous tissue to define the natural tissue plane of dissection. After defining the natural tissue plane, it is designed to move or carefully insinuate tissues along these natural planes without cutting the tissue, so that targeted organs or parts thereof could be viewed and reached during laparoscopic procedures. The following features make the LNTPI unique compared to standard blunt dissectors used in laparoscopy: 1. The tip of the LNTPI is coarse and not smooth. The tip has diagonal, spiral ridges from the sides which are carried onto the tip converging as a single spiral at the center of the tip, creating a pattern resembling that of a screw; 2. The ridges of the LNTPI are comprised of asymmetrical triangular ridges with an acute angle at the apex that may be leaning along with or against the rotation of the spiral; 3. The tip of the LNTPI is made of tungsten carbide metal instead of stainless steel; 4. Dissection can be done in the usual up, down, left, and right motions as standard dissectors; 5. The side of the LNTPI can be used to "peel" tissue by using the ridges on its side combined with a twisting movement. This maneuver cannot be performed using standard dissectors; and 6. The tip of the LNTPI can perform circumferential dissection when used with a twisting movement causing it to engage tissue like a "drill" along the natural tissue plane. The ridges that converge into a single spiral at the tip of the invention appear like a screw and with the proper twisting movement have a similar effect on tissue. Because of the texture, design, and material used for the tip of the LNTPI, it has the following advantages over standard dissectors: The LNTPI can engage tissues more easily even if the tissues are slippery due to the presence of blood or fluids. The LNTPI can be used to engage tissues through a twisting motion which motion allows the tissues to be engaged in a specific manner that defines natural tissue dissection planes. The LNTPI can insinuate / "peel" tissue by using the side spiral ridges in combination with a twisting movement. The LNTPI can perform circumferential dissection by using the tip and the convergence of the spiral ridges at the center of the tip in combination with a twisting movement. The transfer of lateral shear force to the tissue at various angles (45, 90, and 180 degrees) when using the LNTPI is significantly higher whether the motion is by a sweeping motion or twisting of the instrument, allowing it to insinuate better than standard instruments, especially in a wet field. Hand movements needed in insinuating tissue using the LNTPI are different from the usual hand movements when using standard dissection instruments. The hand movements in using LNTPI require less muscular effort and repetitiveness, thus preventing muscle fatigue and repetitive use injury among surgeons. The instrument is reusable, as compared to dissectors that have fabric at the tip, which must be disposed of and replaced once the fabric tip fully absorbs the blood or other fluid in the wet tissue surface.

The present disclosure is directed to devices, kits, and methods for treating lumbar spinal stenosis by at least partially decompressing a compressed nerve root. The method can include identifying the compressed nerve root and percutaneously accessing a region of a lamina located adjacent to the compressed nerve root. The method can also include forming a channel through the region of the lamina, wherein the channel can be formed medial to a lateral border of the lamina. Further, the method can include expanding the channel in a lateral direction.

A laryngoscope includes a curved blade including a proximal end, a distal end, and a first channel. The laryngoscope also includes a handle and a second channel. The handle includes a non-electric light source, e.g., a chemiluminescent light source. A catalytic agent in the chemiluminescent light source is activated by pressure on the chemiluminescent light source to generate light that transmits along the first channel. The second channel is disposed proximate and through the blade and configured to provide at least one of oxygen, suction, and an instrumentation into the proximal end and out of the distal end of the blade.

Various components of an interventional therapy assembly are disclosed. One such component is a pointer which may be configured to indicate the disposition of another portion or component of the assembly. A rotary indexing device which may be configured to control or facilitate rotation of other components is also disclosed. Further, various components of an elongate instrument having flexible segments and operative segments are also disclosed. In some embodiments, the elongate instrument may comprise a biopsy assembly and may be used in connection with other components of the disclosed assembly.

A cutting assembly (12) for a surgical instrument including a drive assembly (14) having a handpiece (40) defining a handpiece irrigation path (42) comprises an outer hub (34), an outer tube (16) extending from the outer hub (34) and defining a distal tube opening (186), a seal (30) coupled to the outer hub (34), a cutting implement (18) comprising a cutting shaft (22) coaxially disposed within the outer tube (16), and a bur (82). The cutting assembly (12) further comprises a drive hub (24) coupled to a proximal end of the cutting shaft (22) and configured to be removably coupled with the drive assembly (14) for rotating the cutting shaft (22) within the outer tube (16), wherein the cutting shaft (22) and the drive hub (24) are axially movable relative to the outer hub (34). An irrigation spacer (170) is coupled to the outer hub (34) and positioned distal to the drive hub (24), the irrigation spacer (170) defining a bore (174) through which the cutting shaft (22) is rotatably disposed, and further defining irrigation passageways (178) configured to be arranged in fluid communication with the handpiece irrigation path (42) of the handpiece (40). The irrigation spacer (170) is configured to provide a stop of distal axial movement of the cutting shaft (22) and the drive hub (24) for permitting fluid to flow through the irrigation passageways (178).

A catheter for forming a fistula between two vessels. The catheter comprises a catheter body having a longitudinal axis, an electrode extending radially from the catheter body for contacting a vessel wall and forming the fistula, and a cutting unit disposed proximally or distally of the electrode for cutting a venous valve.

A surgical cutting assembly having an actuator assembly operable in a first mode and a second mode. The wheel is rotatable in a first axial position to rotate the intermediate tube to orient the cutting window and is rotatable in a second axial position to rotate the intermediate tube to orient the bent portion of the tube assembly. The actuator assembly may be operably coupled to the intermediate tube and operably decoupled from the outer tube in the first mode and operably coupled to the outer tube and operably decoupled from the intermediate tube in the second mode. The actuator assembly may include a first gear, a second gear fixed to the outer tube, and a third gear fixed to the intermediate tube. The distal wheel portion and the proximal wheel portion may be separate components coupled together to define a cavity for a sub-component of the actuator assembly.

A plaque removal device includes a cutter assembly. The cutter assembly includes a housing including a housing support surface. The cutter assembly also includes a cutting element rotatably and translationally carried by the housing. The cutting element includes at least one cutting blade configured to cut obstructive material as the cutting element is rotated relative to the housing. The cutting element also includes a cutter support surface configured to engage the housing support surface. As the cutting element is rotated relative to the housing and the at least one cutting blade cuts the obstructive material, the cutting element is translated distally relative to the housing until the cutter support surface engages the housing support surface.

The application discloses a medical water jet device, which comprises a water jet assembly and a transmission assembly. The water jet assembly comprises a water jet and a built-in gear. The water jet is connected to the built-in gear. The water jet comprises a body and a fluid channel in the body. The fluid channel extends axially along the body. The transmission assembly comprises a motor and a gear assembly. The motor drives the gear assembly to rotate. The gear assembly is engaged with the built-in gear to drive the water jet to rotate around the axis of the body. The medical water jet device has higher operation flexibility and can reduce the complexity of water jet surgery.

An apparatus for use in preparing the intervertebral disc space. The apparatus includes a powered disc cutter that can be inserted through a tube and into the disc space. Once inside the disc space, the cutter can be rotated on its axis and articulated through the disc space to break up and disconnect the disc tissue from the surrounding disc tissue and disc annulus. The device is powered by a handheld driver that utilizes a motor to impart motion, such as rotary motion, to an elongated shaft assembly having a cutting tool or assembly pivotably attached to the distal end thereof. The cutting tool is mounted to the end of the drive shaft assembly by a linkage so that the shaft may be inserted in a straight configuration down a narrow access port. The cutting assembly can spin on its axis while being articulated providing access to the intervertebral space.

An endoscopic tissue inversion and resection system employs an exemplary endoscopic tissue inversion and resection device configured to invert tissue to plicate the tissue between a pair of clamping tubes that advance a clamp component and guide clamp components around the plicated tissue. A clamp component may include magnets and / or a shape memory material. The magnets may produce a pinching force of the tissue. A shape-memory clamp component may have a preform shape that when configured around the plicated tissue clamps and retains the plicated tissue. An endoscope is configured between the first clamping tube and a second clamping tube and a tissue grasping device plicates the tissue. The endoscope may have an imaging device, to enable viewing of the interior of the body during a procedure to guide the endoscope to a desired location.

A hand-held aspiration device is provided which has a relatively small suction volume along a suction path to improve responsiveness of the aspiration device when the device is activated. The device may be manually powered and may be provided without electronic controls. The device has a suction path which may be purged into a disposal enclosure to reduce the volume of material under the influence of the suction pressure during the procedure. The suction source may also be part of the hand-held unit to further reduce the suction path and suction volume.

A surgical device includes a housing, a circuit assembly, a drive element, a cutter, and an input assembly. The circuit assembly is arranged in the shell. The driving element is arranged in the shell and is electrically connected to the circuit assembly. The cutter is connected to the driving element and is driven by the driving element. The cutter protrudes from the first end of the housing. The input assembly comprises a nameplate and at least one key switch. The at least one key switch is arranged in the nameplate and electrically connected to the circuit assembly. The nameplate is arranged on the shell and exposed outside.

Disclosed are a surgical tunneler, kits comprising the surgical tunneler, and methods of use thereof, for implanting access lines. The surgical tunneler includes an actuator configured to facilitate selective shifting between a distal tunneling configuration, wherein the distal body portion is fully covered with a cover, and a lateral tunneling configuration, wherein the distal body portion is at least partially uncovered. The surgical tunneler has a functional length configured to facilitate lateral tunneling under normal manual force when applied to the surgical tunneler proximally to the proximal body portion in the lateral tunneling configuration.

The systems and methods can be employed for transtympanic access to the middle ear for delivery of therapeutic formulations or implant devices to target locations under direct visualization. The systems and methods can also be used to improve access and visualization for various otologic surgical procedures, such as, but not limited to, cholesteatoma removal, tympanic membrane repair, and ossicular chain repair.

Medical cutting devices having static components, working blade bodies, rails, struts, channels for fluid and gas flow, and hand-piece and robotic arm attachment capabilities are disclosed. According to an aspect, a cutting device includes a working blade body being configured for operable connection to a source of movement. The cutting device also includes a static component being configured for operable connection to the source of movement. The static component comprises at least one rail, wherein the at least one rail extends substantially the same length as the working blade body.

The present disclosure relates to the field of tissue anatomy. In particular, the present disclosure relates to medical devices that lift and retract tissue during an anatomical procedure to improve visualization of target tissue and mitigate obstruction of anatomical tools. Specifically, the present disclosure relates to a tissue retraction device that moves from a constrained configuration to a relaxed configuration during an anatomical procedure to secure and retract an exfoliated portion of target tissue.

A sidecar configured to be positioned alongside an elongate member configured to deliver a medical instrument, such as a medical scope. The sidecar is configured to deliver one or more medical instruments independently of a medical instrument delivered by the elongate member. The sidecar is coupled with the elongate member with the distal end of the sidecar proximal to the distal end of the elongate member. An auxiliary medical instrument delivered through a lumen of the sidecar is thus translatable as well as laterally movable with respect to a distal increased-flexibility section of the elongate member. A return-to-home feature may be provided to return the distal end of the auxiliary medical instrument from a position spaced apart from the elongate member to a position adjacent the elongate member.