A medical device is provided comprising a first port; a second port in fluid communication with the first port; and a third port in selective fluid communication with both the first port and the second port; a sealing membrane disposed between the third port and both the first port and the second port, the sealing membrane is configured to move between a first position preventing fluid communication between the third port and both the first port and the second port and a second position allowing fluid communication between the third port and the first port, wherein movement of a fluid supplied to the medical device at the third port moves the sealing membrane from the first position to the second position.

An endoscopic anastomosis system (100), devices, and methods. The system (100) includes a first main body (200). The system (100) includes a head assembly (300) secured to the first main body (200). The head assembly (300) includes an opening (318), a first pressure port (332), and a first expandable member (320). The system (100) includes a second main body assembly (400), at least a portion of the second main body assembly (400) moveable through the opening (318) of the head assembly (300). The second main body assembly (400) includes a second expandable member (420) and a second pressure port (422). The system (100) includes a magnetic implant assembly (430) secured to an end of the second main body assembly (400). The magnetic implant assembly (430) includes a magnetic body (432). The magnetic body (432) is formed as a cylindrical body with a central axis. The magnetic body (432) includes a front wall (432a), a rear wall (432b), and a exterior circumferential sidewall (432c) formed around the magnetic body (432). The exterior circumferential sidewall (432c) defines a thickness of the magnetic body (432). The exterior circumferential sidewall (432c) is formed at a first radius from the central axis.

A tissue guard for use with a surgical access device includes a proximal ring having proximal and distal ends, the distal end configured to operably couple to a ground ring that ultimately electrically connects to an electrical ground. One or more mechanical interfaces extend about the proximal ring and are configured to mechanically engage a rim of an access device to secure the tissue guard thereon. A retention body is configured to operably couple to a distal end of the ground ring, the retention body including a distal end configured to operably engage the access device to secure the tissue guard therein.

Access assemblies include an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.

A system comprises a mouth piece to receive exhaled air; a breath chamber to receive exhaled air; a valve to direct exhaled air along a desired flow path, direct purge gas along a desired flow path, control the rate of flow of purge gas, control the rate of flow of exhaled air, block the flow of purge gas, and/or block the flow of exhaled air; a source of purge gas; a CO2 cartridge to remove CO2; a water cartridge to remove water; a breath cartridge to capture VOCs from exhaled air; a temperature control system to control the temperature of CO2 cartridge, a water cartridge, and/or a breath cartridge; a cryostat to contain and limit heat flow to a cryogenic liquid; a flow meter designed to measure the flow of exhaled air and/or purge gas; and a pressure transducer to measure a pressure, a flow rate, and/or a flow volume.

Access assemblies include an instrument valve housing and a valve assembly disposed within the cavity of the instrument valve housing. The valve assembly includes a guard assembly, a seal assembly disposed adjacent to the guard assembly, and a centering mechanism for maintaining the seal assembly and guard assembly centered within a cavity of the instrument valve. The guard assembly includes a support ring and a plurality of guard sections disposed distally of the support ring. The seal assembly includes a proximal seal member, an intermediate seal assembly, and a distal seal member, the intermediate seal assembly including a plurality of seal sections in a stacked configuration.

A collector used to collect bone includes: a container body defining an interior containment space for receiving and retaining collected bone, and having at least one open end for access and removal of collected bone from the interior containment space; and a cap in covering relation to the open end of the container body such that access to the interior containment space for removal of collected bone is inhibited. The collector includes an intake port defining an opening for receiving therein a distal end of a kerrison rongeur for collecting cut bone from a cutting area thereof, and the cap includes at least one scraper for engaging and dislodging cut bone from the cutting area of a distal end of a kerrison rongeur when received within the intake port. The collector preferably is used with a kerrison rongeur for collecting cut bone therefrom.

The present disclosure is directed to systems and methods that facilitate delivery of a therapeutic agent into the skin of a subject. A first mechanism can create a first angled channel through a first location on a surface of a subject's skin at a first angle relative to the surface of the subject's skin. A second mechanism, associated with the first mechanism, can create a second angled channel through a second location on the surface of the subject's skin at a second angle relative to the surface of the subject's skin. The first angled channel and the second angled channel intersect to form a connected channel under the surface of the subject's skin.

Various cartridge assemblies for surgical instruments are provided. Cartridge assemblies can include active sensors for applying stimuli to a tissue clamped by an end effector of the surgical instrument and a circuit configured to determine a tissue type of the tissue according to a change in the tissue parameter detected by the sensor resulting from a stimulus from the active element. Cartridge assemblies can also include physical features and/or stored data that identify the cartridge. Surgical instruments further can be configured to resolve conflicts when the physical features and/or stored data are not consistent with each other in their identification of the cartridge type.

A robotic surgical tool includes a handle and an elongate shaft extendable through the handle and including an outer proximal tube and an inner spline rotatably received within the outer proximal tube. A first actuation system is housed within the handle and operable to rotate the inner spline relative to the outer proximal tube and thereby transfer torque to a proximal or distal end of the shaft. A second actuation system is housed within the handle and operable to drive the outer proximal tube and thereby advance or retract the elongate shaft in z-axis translation through the handle.