1137 results about "Distal portion" patented technology

A catheter adapted or high density mapping and / or ablation of tissue surface has a distal electrode array with offset spine loops, each spine loop having at least a pair of linear portions and a distal portion connecting the pair of linear portions, and one or more electrodes on each linear portion. The linear portions of the plurality of offset spine loops are arranged in-plane a single common plane, and the distal portions of the plurality of offset spine loops are arranged off-plane from the single common plane.

An imaging catheter is provided. In one embodiment, the imaging catheter includes a flexible elongate member that includes a proximal portion formed of a first material embedded with a first braid with a first braid pitch; a distal portion formed of a second material embedded with a second braid with a second braid pitch, wherein the second material is a lower durometer than the first material and wherein the second braid pitch is a higher per inch count than the first braid pitch such that the distal portion is more flexible than the proximal portion; a primary lumen extending between the proximal portion and the distal portion; and a plurality of secondary lumens extending between the proximal portion and the distal portion; and an imaging component coupled to the distal portion of the flexible elongate member.

Catheter devices for treating occlusions in body lumen are described herein. The catheter devices may include a tubular body having a distal end, an distal portion elastically connected to the distal end of the tubular body, an impactor connected to the distal portion and separated by a space from the distal end of the tubular body, a distal shock wave emitter located adjacent to the space and connected to a power source, and an enclosure at least partially surrounding each of the distal end of the tubular body, the elastic distal portion, the impactor, and the distal shock wave emitter. The impactor may be configured to move in response to shock waves generated from the distal shock wave emitter, such that a length of the space in the proximal-distal direction increases by between 0.05 mm and 0.6 mm.

Described embodiments include apparatus (28) that includes a shunt (26). The shunt includes a flared distal portion (40), a flared proximal portion (44), and an intermediate portion (42), disposed between the distal portion and the proximal portion. The apparatus further includes a constricting flexible longitudinal element (38) passing circumferentially along the intermediate portion of the shunt, configured to constrict the intermediate portion of the shunt, and one or more proximal-portion-collapsing flexible longitudinal elements (36) configured to collapse the proximal portion of the shunt. Other embodiments are also described.

An intravascular device includes a tube member. The tube member comprises a distal portion and a proximal portion. Each of the distal portion and the proximal portion of the tube member comprises a plurality of cuts circumferentially extending around a longitudinal axis of the tube member. The plurality of cuts of the distal portion of the tube member comprises a first pitch, a first cut length, and a first uncut length, the plurality of cuts of the proximal portion of the tube member comprises a second pitch, a second cut length, and a second uncut length, and the first pitch is less than the second pitch, the first cut length is greater than the second length, and the first uncut length is less than the second uncut length.

A hemostatic device includes an elongated body, a flexible annular portion, a shield and an inflatable seal. The elongated body is configured to be connected to a vacuum source. The flexible annular portion is connected to the elongated body and includes a plurality of holes on the inner circumference of the flexible annular portion. The flexible annular portion is configured to be placed in the uterus. When the elongated body is inserted into the uterus, activation of the vacuum source is configured to draw a vacuum through the plurality of holes to contract the uterus. The shield is folded around the outer circumference of the annular portion, and the shield has an edge extending radially inward relative to the flexible annular distal portion. The shield is configured to prevent tissue from blocking the plurality of holes when a vacuum is applied. The inflatable seal is connected to the elongated body and configured to seal the uterus.

A catheter includes a catheter body, a pump assembly and a cannula. The pump assembly can be disposed at a distal end of the catheter body and has a distal portion. The cannula can be coupled to the distal end portion of the pump assembly and can include a proximal cannula portion and a distal cannula portion. The distal cannula portion has an approximately helical shape which can allow the cannula to be inserted into a patient's right heart and pump blood therethrough. In certain implementations, the distal tip of the helical shape has a slight bias relative to the main helix to further facilitate delivery of the device. In certain applications this bias is toward the central axis of the helix.

A teleoperated manipulator system includes a manipulator assembly and a tool actuation assembly coupled to the manipulator assembly. The tool actuation assembly inserts a tool, such as a surgical instrument, along an insertion axis and also rotates the tool around the insertion axis. The manipulator assembly includes an arm that rotates with reference to a mounting base to rotate the tool around a yaw axis that intersects the insertion axis. A distal portion of the arm defines an arcuate pitch arc, and a center of the pitch arc is coincident with the intersection of the insertion axis and the yaw axis. The tool actuation assembly is driven along the pitch arc to pitch the tool. The manipulator system is optionally a telesurgical system, and the tool is optionally a therapeutic, diagnostic, or imaging surgical instrument.

A catheter configured to guide and support a balloon catheter for use in and around a pulmonary vein and its ostium, has an elongated shaft and a distal assembly, the elongated shaft including a proximal portion with a first flexibility and a distal portion including a second flexibility greater than the first flexibility, the distal assembly including an elbow portion and a generally circular portion generally transverse to the longitudinal axis, the generally circular portion including a third flexibility greater than the second flexibility. Single axis location sensors and sensing ring electrodes are carried on the generally circular portion.

In one example, a medical device may include a handle including a proximal portion and a distal portion, and the proximal portion may pivot relative to the distal portion. The medical device may also include an insertion portion coupled to the distal portion of the handle and configured to be positioned within a body lumen; and an articulation wire extending from the handle through the insertion portion. Pivoting of the proximal portion of the handle relative to the distal portion of the handle may move the articulation wire relative to the insertion portion to bend a distal portion of the insertion portion.

An introducer sheath for providing access in a patient's body comprises a tubular body with a distal portion and a proximal portion, the proximal portion being configured to be inserted into the patient's body to allow a medical device to be inserted through the introducer sheath into the patient's body. In order for the introducer sheath to be removable from the patient, it can be separated along its length in a longitudinal direction. The introducer sheath further comprises at least a first handle which is pivotable about a fulcrum. The first handle has a first end portion and a free second end portion so as to form a lever, such that pivoting the handle about the fulcrum causes a contacting portion of the handle to act on a respective counter portion that is operatively connected to the distal portion of the tubular body. This creates a breaking force that causes the distal portion of the tubular body to break.

Disclosed herein are embodiments of a system and embodiments of a method for stabilizing spinal vertebrae through a skin incision. In some embodiments, the system or method can include a first screw having a first screw head, a second screw having a second screw head, and a third screw having a third screw head, a first tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion, a second tower having a distal portion and a proximal portion, the second tower configured to be removably coupled with the second screw at a distal end of the second tower, and a third tower having a distal portion, a proximal portion, and a bend between the distal portion and the proximal portion.

The present disclosure is a femoral preparation guide and a kit of surgical components related to the femoral preparation guide. The femoral preparation guide is for use on a condyle of a femur during a surgical procedure in which the condyle receives a femoral condylar implant. The femoral preparation guide includes a posterior portion for fitting over a posterior region of the condyle and a distal portion for fitting over a distal region of the condyle. The distal portion is at an angle relative to the posterior portion. The distal portion includes first and second resections slots for receiving cutting tools that provide two resections of the condyle. The first and second resections slots being at angles relative to each other.

A telescopic intramedullary nail for the treatment of fractures or deformations of long bones, such as for example in the case of osteogenesis imperfecta or pseudoarthrosis may include a hollow stem and a rod telescopically coupled inside said hollow stem. The hollow stem may include, at a free distal end, an anchor tip configured to be internally fixed inside a distal portion of a long bone of a patient, without protruding from said long bone. The rod may include a free proximal end arranged to be fixed to a proximal site of said long bone.

A dynamic pet treat device includes a spine, a body, and a retainer. The spine has a proximal portion, a distal portion, and a medial portion disposed between the proximal portion and the distal portion, the medial portion configured to receive one or more pet treats. The body extends from the proximal portion of the spine and optionally can define a shape of a prey to encourage a pet to play with the device. The retainer extends from the distal portion of the spine and is configured to retain the one or more pet treats on the spine. The retainer can optionally include a dynamic tail that further encourages the pet to play with the device.

A sexual stimulation device includes an actuator having a power output end portion, a main body, and a bionic finger assembly including proximal, middle, and distal components. At least a portion of the main body forms the proximal component. The middle phalanx is hinged to the proximal component, and the distal component is hinged to the middle component. The middle component is coupled to the power output end portion, and the distal component is coupled to the proximal component. A distal portion of the distal component is caused to execute a rocking motion with respect to the first proximal portion of the middle component as the power output end portion is actuated by an actuator.

Disclosed herein are systems, devices, kits, and associated methods for treating conditions of the eye by reducing intraocular pressure. The system may include an ocular implant and a delivery device. The ocular implant may be implantable within Schlemm's canal to restore or maintain at least partial patency of the canal without substantially interfering with transmural or transluminal fluid flow across the canal. The delivery device may include a cannula comprising a straight proximal portion and a curved distal portion, where the curved distal portion comprises a first curve in a first direction. The delivery device may also include a positioning tool positioned at least partially within the cannula and configured to advance the ocular implant through the cannula, where the positioning tool comprises a curved distal portion biased to form a second curve in a second, different direction.

A neurovascular catheter is disclosed for insertion into an internal carotid artery of a patient. The neurovascular catheter includes a flexible distal segment for insertion into an internal carotid artery of a patient. The flexible distal segment can include a distal portion, a transitional portion, and a support portion. The distal portion includes a tracking tip configured to be positioned within a cavernous segment of the internal carotid artery, and an increasing stiffness portion. The transitional portion can be positioned within a petrous segment of the internal carotid artery. The support portion can extend proximally to a base of a patient's skull.

A connector for connecting a medical implant to a delivery catheter includes a proximal portion and a distal portion connected to the proximal portion via a central portion. The proximal, distal and central portions extend along a central axis (A). A distal end of the distal portion facing away from the central portion. At least one recess is formed in the central portion and in the distal portion. The at least one recess is configured to receive a connecting element of the medical implant configured to connect the medical implant to the connector. The distal portion tapers towards the distal end. The distal portion can include a conical section, and an outer surface of the conical section includes a generatrix that encloses an acute angle (α) with the central axis (A), with the acute angle (α) in the range of between 20° and 60°.

Some embodiments of a rotational atherectomy device can remove (partially or completely) stenotic lesions in blood vessels by rotating one or more abrasive elements in an orbital path to abrade and breakdown the lesion. In particular implementations, multiple abrasive elements are arranged along a distal portion of a drive shaft with an improved configuration so as to facilitate both efficient navigation into smaller blood vessels below the ankle or in the heart and effective orbital paths for abrading stenotic material in such smaller vessels.

A device for treating tissue includes a capsule extending longitudinally from a proximal end to a distal end and including a channel extending therethrough, the capsule releasably coupled to a proximal portion of the device and clip jaws, proximal ends of which are slidably received within the channel of the capsule so that the clip jaws are movable between an open configuration and a closed configuration. Clip jaws are configured so that a distance between the distal ends of the clip jaws in an open configuration is between 15 and 18 millimeters. Clip jaws further include barbs extending from a distal portion thereof.

Disclosed herein is a catheter, which in some embodiments includes a distal section configured to enter a skin insertion site. The distal section can include a tapered junction having one or more dilation structures configured to dilate the skin insertion site. The distal section can further include a distal portion extending from a distal end of the tapered junction, the distal portion having a diameter smaller than a proximal portion of the catheter. In combination, the tapered junction, the one or more dilation structures, and the specific actions of the user urging the catheter into the insertion site can result in an improved fit of the catheter in the insertion site.

A protective device for maintaining the sterilization of a self-drilling anchor inserter and prohibiting the sharp, drilling point of the inserter from puncturing sterile packaging. The device includes a cannulated tube having a proximal end and a distal end. The cannulated tube extends along a longitudinal axis and has proximal and distal portions. The proximal portion extends to the proximal end and the distal portion extends to the distal end. The cannulated tube also has an inner volume. A first slot extends into the inner volume and along the proximal portion toward the proximal end. A second slot extends partially into the cannulated tube between the proximal portion and the distal portion. A connecting portion attaches the proximal portion to the distal portion. The proximal portion is movable relative to the distal portion, between an aligned position and a bent position.

An intramedullary nail implant for positioning in a bone having a head and a shaft defining an intramedullary canal. The implant includes a distal portion having a shaft extending along a central axis and configured for positioning within the intramedullary canal. A proximal portion extends proximally from the distal portion. The proximal portion defines a contact surface which extends at least in part medially of the central axis such that it is configured to extend within a medial portion of the bone head. A method of implanting the nail is also provided.

A hold assistance device for use with a medicament delivery device is described. The hold assistance device includes a body that includes: a receiving volume for receiving a medicament delivery device; a proximal portion comprising a proximal end of the body; a distal portion comprising a distal end of the body, the proximal and distal ends defining an axial direction; and a connecting portion arranged between the proximal and distal portions, wherein the connecting portion is configured to flex into the receiving volume in a direction generally normal to the axial direction, causing the proximal portion to move axially relative to the distal portion.

A medical elongated body or a balloon catheter with high flexibility. The medical elongated body including: a catheter shaft that extends in an axial direction; and a distal member that is fused to a distal side of the catheter shaft, in which a crystallinity of each of a distal portion of the catheter shaft and a proximal portion of the distal member is less than 40%.

An apparatus includes a body, a shaft assembly, and a visualization assembly. The body includes first and second actuators. The shaft assembly extends distally from the body and includes a rigid proximal portion and a steerable distal portion. The steerable distal portion is positioned distally relative to the rigid proximal portion. The first actuator is operable to drive the steerable distal portion to deflect laterally relative to a longitudinal axis defined by the rigid proximal portion. The steerable distal portion is configured to fit within a nasal cavity of a patient. The visualization assembly is disposed within the shaft assembly. The visualization assembly includes a camera. The second actuator is operable to drive longitudinal translation of the visualization assembly relative to the shaft assembly.

A medical device includes a housing having a distal portion with a probe extending therefrom. The housing is graspable by a user to manipulate the housing and the probe. The medical device further includes a pressure sensing system including a pressure sensor and a processing unit coupled with the pressure sensor. The pressure sensor is configured to be carried by the probe. The processing unit is carried by the housing and is configured to receive input signals from the pressure sensor. The medical device further includes an output unit coupled to the processing unit and carried by the housing. The output unit is configured to output a reporting signal to a display. The reporting signal is indicative of a pressure at the pressure sensor.

A method for real-time surgical navigation, including: capturing an intraoperative image stream from a distal portion of an endoscopic instrument inserted into a patient's body; processing the intraoperative image stream with a machine learning-based segmentation algorithm configured to identify anatomical structures; matching segmented images to a patient-specific three-dimensional (3D) model of the anatomy; and outputting navigational data indicating the position of the endoscopic instrument relative to the anatomical structures.

A device for treating tissue includes a capsule extending longitudinally from a proximal end to a distal end and including a channel extending therethrough, the capsule releasably coupled to a proximal portion of the device and clip jaws, proximal ends of which are slidably received within the channel of the capsule so that the clip jaws are movable between an open configuration and a closed configuration. Clip jaws are configured so that a distance between the distal ends of the clip jaws in an open configuration is between 15 and 18 millimeters. Clip jaws further include barbs extending from a distal portion thereof.