Patent classifications
A61M2039/0646
CATHETER ASSEMBLY AND MEDICAL VALVE
A catheter assembly is provided with a catheter, a catheter hub, and a valve body (medical valve) provided in the catheter hub. The valve body includes a hollow main body provided with a distal end surface and a fixing portion for fixing the valve body to the catheter hub. At least a part of an outer peripheral surface and at least a part of an inner peripheral surface of the main body are inclined with respect to a central axis of the valve body. The main body of the valve body includes a distal end slit provided on the distal end surface and a side slit provided on the outer peripheral surface of the main body and continuously extending from the distal end slit.
Pressure-sensing bleed back control valve with improved sealing
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.
ASYMMETRIC SHAFT SEAL
A trocar assembly includes a trocar that includes a trocar housing and a cannula that extends distally from the trocar housing, and an integral seal system positioned within a central passageway extending axially through the trocar and engageable against a surgical tool shaft extended therethrough. The integral seal system includes an asymmetric seal and a duckbill seal arranged distal to the asymmetric seal, and the asymmetric seal defines a diaphragm that complements insertion and extraction drag forces generated by the duckbill seal against the surgical tool shaft such that total insertion and extraction drag forces generated by the integral seal system are equalized.
Methods for accessing a left ventricle
Two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure, may be performed separately or together. One procedure involves providing a valved passageway through the patient's left ventricular wall at the apex of the patient's heart and advancing instruments through the valved passageway to connect the valve leaflets of the patient's heart valve, e.g. the mitral valve. The second procedure involves advancing a pacing lead and a pacing lead implanting device through a trocar in the patient's chest and implanting the pacing lead on an exposed epicardial region of the patient's heart wall. The pacing lead has a penetrating electrode which is secured within the heart wall. Improved devices for these procedures include a minimally invasive grasping device for heart leaflets, a leaflet connector with artificial cordae tendenae and a pacing lead implant instrument.
Trocar seal system
A seal assembly is provided for reception of an elongated surgical instrument, which comprises a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner, the seal member further including a peripheral flange element which contacts a surface of the body to form a contact seal therewith; and a fabric layer juxtaposed relative to the resilient material. The seal assembly may further include a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
Needle protection device and related systems and methods
A needle protection device may include a hub, a housing disposed within the lumen of the hub, and a needle. The housing may include a tubular portion, which may include two arms coupled thereto. Each of the arms may include a first end coupled to the tubular portion, a second end disposed within the tubular portion, and a bent portion therebetween. The second end of the first arm and the second end of the second arm may form a duckbill valve. A needle may extend through the housing. Withdrawing a sharp distal tip of the needle in a proximal direction beyond the second end of each of the arms may close the duckbill valve and facilitate removal of the housing from the hub. Shielding the sharp distal tip of the needle in this manner may prevent blood spatter and exposure to blood and blood-borne pathogens.
SURGICAL INSTRUMENT GUIDE WITH INSUFFLATION CHANNELS
A cannula and instrument guide assembly includes a cannula with a proximal portion and a tube. An instrument guide is removably inserted into the proximal portion of the cannula and extends through the cannula to a distal end of the tube. The proximal portion of the cannula has an insufflation port. The instrument guide provides at least one interior passageway to support a shaft of a surgical instrument that passes through the instrument guide. One or more channels on an outer surface of the instrument guide provide a passage for insufflation gas received from the insufflation port to the distal end of the tube. The one or more channels have a first cross-sectional area at a proximal end and a second, larger cross-sectional area at a distal end. The one or more channels may have the first cross-sectional area along a majority of the length of the channels.
METHODS FOR ACCESSING A LEFT VENTRICLE
Two minimally invasive therapeutic procedures, particularly for patients with congestive heart failure, may be performed separately or together. One procedure involves providing a valved passageway through the patient's left ventricular wall at the apex of the patient's heart and advancing instruments through the valved passageway to connect the valve leaflets of the patient's heart valve, e.g. the mitral valve. The second procedure involves advancing a pacing lead and a pacing lead implanting device through a trocar in the patient's chest and implanting the pacing lead on an exposed epicardial region of the patient's heart wall. The pacing lead has a penetrating electrode which is secured within the heart wall. Improved devices for these procedures include a minimally invasive grasping device for heart leaflets, a leaflet connector with artificial cordae tendenae and a pacing lead implant instrument.
Breast Pump Kit
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.
External-magnetically controlled access to implanted fluid pathway
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.