Embodiments of a breast pump kit are disclosed herein. The breast pump kit can include one or more of a breast pump shield and a breast pump milk bag. According to various embodiments, the breast pump shield can include a body portion that has a breast engagement portion that can receive at least a portion of a breast of a user. The breast pump shield also can include a suction chamber located in proximity to the breast engagement portion. Milk can pass into the suction chamber and into the breast pump milk bag. A one-way valve can prevent reverse flow of fluids from the breast pump milk bag into the breast pump shield. The breast pump kit also can include a cover that can seal the breast pump shield, if desired.

An implantable medical pump system configured to selectively permit access to a medicament reservoir by way of at least one contactless key, including an implantable medical pump having an medicament reservoir fluidly couple to an access port via a conduit including an access valve, and at least one contactless key configured to impart a magnetic field upon a portion of the implantable medical pump to manipulate the access valve between a closed position isolating the medicament reservoir from the access port, and an open position fluidly coupling the medicament reservoir to the access port.

The outer tube includes two insertion holes which are formed in a cross-sectional D-shape via a partition wall provided in the central part in a cross-section vertical to respective axial directions of the insertion holes. A slit of a valve body located in the insertion hole is disposed along reference line passing through centers of respective arcs of the insertion holes as seen from the axial directions of the insertion holes. Therefore, two leaflets of the slit abut on an arc edge of the insertion hole and a D-shaped cut part of the partition wall respectively when the insertion part of the treatment tool is internally fitted, and they are deformed into the same shape. Since there is no difference in stress applied to two leaflets, it is possible to secure the airtightness by the slit over a long period of time.

A gasket for a hemostasis valve includes an annular wall, a membrane, a central protrusion on the membrane, and a plurality of ligaments attached to the central protrusion extending radially to the annular wall. The membrane, central protrusion, and ligaments are divided by slits into a plurality of flaps, with each flap bounded along an outer circumferential edge by the annular wall, along an inner circumferential edge by the central protrusion, and along its radial edges by segments of the ligaments. Two such gaskets can be arranged, back-toback, in a hemostasis valve. To facilitate such assembly, each gasket can include a plurality of positioning protrusions extending axially and a plurality of positioning recesses set into a circumferential surface, with the protrusions and recesses having complementary shapes for proper interconnection and fit between gaskets.

A flow regulator for a blood collection assembly includes a housing having an inlet and an outlet, which defines an interior space between the inlet and the outlet. A membrane having a first surface and a second surface is disposed at least partially within the interior space. The membrane has a first position where a flow path between the inlet and the outlet is substantially open, and a second position where the flow path between the inlet and the outlet is at least partially restricted. The membrane is configured to move between the first and second positions in response to a pressure differential acting on the membrane.

Needle assemblies and related methods having a needle hub with a needle, a catheter tube with a catheter hub and having the needle extending through the catheter tube in a ready to use position. A valve is positioned in an interior cavity of the catheter hub, the valve having sections that can deflect in a distal direction and sections that can deflect in a proximal direction to open a fluid flow path through the valve. The valve can be deflected by a multi-piece valve opener.

Needle assemblies and related methods in which a valve opener is used to push into a valve on the valve to open the valve. The needle assemblies each includes a needle hub with a needle, a catheter tube with a catheter hub and the valve and valve opener positioned in the interior cavity of the catheter hub. The valve can have a valve skirt and a nose section of the valve opener can locate therein. One or more reliefs can be provided with the valve opener so that an elbow or diagonal section on a needle guard can project from a holding space within the valve opener through the relief.

A hemostasis or bleed-back control valve such as a Tuohy-Borst adapter is provided that is capable of sensing pressure in vivo. The valve may include a main valve body having a lumen. An upstream main seal may be disposed in the lumen of the main valve body. A catheter fitting may be disposed at a downstream end of the main valve body. A pressure transducer may be in fluid communication with the lumen of the main valve body. Such devices may be suitable for exploratory or interventional medicine involving catheterization.

A novel seal is provided along with a valve for implementing the seal in the form of a hemostatic catheterization valve. A pressure-sensing form of the hemostatic valve is also provided. The novel seal includes a pair of cooperating conical gaskets divided through their apexes into a plurality of edge-abutting semi-conical flaps. The seals are angularly fixed in orientation relative to each other using registering structures such as complementary tabs and sockets. More specifically, the seams where the semi-conical flaps abut are angularly off-set between the two conical gaskets by a predetermined amount.

A diagnostic imaging catheter is disclosed which includes a drive shaft, of which a distal portion is provided with a signal transmitting and receiving unit, and which can be rotated; a sheath including a lumen into which the drive shaft is inserted such that the drive shaft can be moved forward and backward; a communicating hole which is provided in a distal portion of the sheath, and through which the inside and the outside of the sheath communicate with each other; and a valve body capable of opening and closing the communicating hole. The valve body is configured to be capable of switching between a closed state in which the communicating hole is covered and blocked with the valve body and an open state which the valve body enters by being moved to the outside of the sheath from the closed state, and in which the communicating hole is open.