Abstract: A feeding apparatus for a patient having a surgically created stoma in the stomach. The apparatus enables feeding liquids of varying viscosities without a suction pump. The simplified, replaceable feeding bottle design makes the apparatus useable by hospital personnel and by patients at home. A decorative cover provides additional privacy.

Abstract: Balloon catheters having the strength and maximum inflated diameter characteristics of an angioplasty balloon and having the recovery characteristics during deflation of an elastic embolectomy balloon. The balloon catheter can be made in very small sizes and has a lubricious and chemically inert outer surface. The balloon catheter is easy to navigate through tortuous passageways, is capable of rapid inflation and deflation and has high burst strengths. Balloon covers having these same characteristics are also described for use with conventional embolectomy balloons or angioplasty balloons.

Abstract: A polymer with a hydrolytically labile backbone and having the structure: ##STR1## wherein R.sub.9 is an alkyl, aryl or alkylaryl group with up to 18 carbon atoms having a pendent carboxylic acid group or the benzyl ester thereof;R.sub.12 is an alkyl, aryl or alkylaryl group with up to 18 carbon atoms having a pendent carboxylic acid ester group selected from straight and branched alkyl and alkylaryl esters containing up to 18 carbon atoms and ester derivatives of biologically and pharmaceutically active compounds covalently bonded thereto, provided that the ester group is not a benzyl group or a group that is removed by hydrogenolysis;each R.sub.7 is independently an alkylene group containing up to four carbon atoms;A is selected from: ##STR2## wherein R.sub.8 is selected from saturated and unsaturated, substituted and unsubstituted alkyl, aryl and alkylaryl groups containing up to 18 carbon atoms;k is between about 5 and about 3,000; andx and f independently range from zero to less that one.

Abstract: A urinary tract irrigating assembly for flushing a TURP-treated prostate gland having a surgically created central cavity. The assembly includes an elongated catheter having a drain port for draining the bladder contents; a discharge port for discharging prostate-irrigating fluid into the cavity; and a second drain port for draining spent prostate-irrigating fluid and other fluids from the cavity. Positioning means are provided for positioning the catheter with the first port located in the bladder and the second and third ports located within the prostate cavity. In use, a predetermined amount of irrigating fluid at predetermined time intervals is discharged into the prostate cavity through the discharge port while draining urine through the first drain port and spent prostate treating agent through the second drain port.

Abstract: This invention pertains to blood vessel cannulation devices and methods for sensing the location of a blood vessel. The blood vessel cannulation device preferably comprises a mounting assembly for securing the device to a patient in the vicinity of a blood vessel, a rotating assembly mounted to the mounting assembly, and a guide housing mounted to the rotating assembly. Sensing guides in the guide housing receive one or more sensors which sense the blood vessel. Rotating the rotating assembly, and traversing the guide housing, enable bringing the bottom ends of the sensing guides into alignment with the blood vessel, correspondingly also bringing a cannula guide, in the guide housing, into alignment with the blood vessel. Cannulation, is improved by the alignment of the bottom end of the cannula guide with respective bottom ends of the sensing guides.

Abstract: An apparatus for maintaining the patency of urine flow through the human urethra, having an intra-urethral catheter (IUC), which has a potential through flow for the urine that extends over its length. The length of the IUC is shorter than the length of the urethra, and the IUC does not protrude from the urethral orifice at either of its ends. A transport means for the insertion of the IUC into the urethra is also associated with the apparatus. Devices are further provided on the ends of the IUC for producing a detachable connection between the IUC and the transport means. The IUC is disposed in the region of the urethra which passes through the prostate gland and the inner sphincter.

Abstract: A thin wall catheter introducer system for penetrating through intravascular tissue walls and for facilitating the introduction of a catheter through the tissue wall is disclosed. In one embodiment, the system includes a sheath having a thin wall tubular member and a wire braid positioned about the tubular member for reinforcing the tubular member. The wire braid may include at least two intertwined wires wound about the tubular member. In another embodiment, the system includes a dilator for penetrating through an incision in an intravascular wall of a patient. The dilator may include a first tubular member and a reinforcing member which is positionable about the first tubular member to substantially inhibit buckling or kinking of the first tubular member. In yet another embodiment, the system includes a vascular access system for use in dilating and penetrating through an incision in an intravascular tissue wall and for facilitating introduction of a catheter into the incision.

Abstract: A urethral occlusion device having a very malleable, flexible, deformable polymer occlusion band which may be easily wrapped about the exterior of the penis to provide sufficient pressure to prevent urine flow, but without restricting blood circulation. The occlusion band includes a silicone rubber shell with silicone gel liner surfaces which provide a washable, reusable, skin-sensitive bond when wrapped, and allow the band to be tightened to the patient's desired degree of compression. A plurality of pliant, deformable ribs are positioned on the occlusion band and oriented along the underside of the penis to mildly stretch the urethra to an occluded position.

Abstract: An implantable injection port consists of a very low profile housing with virtually no residual volume while maintaining a large target area for the needle.

Abstract: A method and apparatus for overpressure protection of a catheter from an indwelling catheter. A method in one embodiment includes injecting an agent into the catheter and relieving overpressures in the catheter during the injecting step. The agent is typically a declotting agent and the obstruction is typically a clot (e.g., blood clot). In one embodiment of the apparatus, a catheter includes a cannula and a first hub and a second hub, each of which are coupled to the cannula. The first hub is for receiving an agent which is placed into the cannula to remove an obstruction, and the second hub includes an overpressure relief valve for relieving an overpressure condition in the cannula. Other embodiments of the invention are also described.

Abstract: A catheter introducer is disclosed having a splittable introducer and an introducer needle. The splittable introducer includes a pair of wings and a tray with an open top extending from the proximal end of the introducer cannula between the wings to lead the distal end of a long, thin and flexible medical device into the open proximal end of the splittable introducer cannula.

Abstract: A balloon dilatation catheter having a catheter shaft with an oblong transverse cross-section with one transverse dimension in a first direction being significantly larger than a second transverse dimension in a direction perpendicular to the first direction. The first dimension is about 1.1 to about 3 times greater, preferably about 1.2 to about 2.5 times greater than the second dimension. In one embodiment, a length of the distal shaft section has inner and outer tubular members where about 30% to not more than about 90% of the inner periphery of the outer tubular member takes the shape of and is secured to the exterior of the inner tubular member. In another embodiment the flexible distal shaft section is an extruded section having an oval or elliptical transverse cross-section. Preferably a pseudoelastic hypotube of NiTi alloy defines at least part of the inflation lumen within the catheter shaft.

Abstract: A steerable direct myocardial revascularization catheter comprises a catheter body, a tip section and a control handle. The catheter body has an outer wall, proximal and distal ends and at least one lumen extending therethrough. The tip section comprises flexible tubing having proximal and distal ends and at least one lumen therethrough. The proximal end of the tip section is fixedly attached to the distal end of the catheter body. The control handle comprises a first member fixedly attached to the proximal end of the catheter body, a second member being movable relative to the first member, and a first guide tube extending through the control handle from the proximal end to the distal end of the control handle. The first guide tube is fixedly attached to one of the first or second members. The catheter also comprises an optic fiber having a distal end and a proximal end.

Abstract: An inner cannula for a tracheostomy tube assembly is formed from a tubular member having two parallel rows of slots formed along its length and covered by a sheath of thin flexible material on the inside of the tubular member, so that the slots can freely open and close on flexing. The two rows of slots are separated from one another by two longitudinal regions uninterrupted by slots, which give the cannula axial rigidity.

Abstract: A multi-catheter emboli containment system is disclosed which is adapted to provide at least one pair of optimized paths for irrigation and aspiration fluid flow. Through careful design of the cross-sectional area of these paths, the present system is able to be compactly utilized in even the smaller size blood vessels. The catheter system itself is provided with occlusive devices to form an emboli containment chamber in which irrigation and aspiration occur. The catheter system of the present invention provides an improved emboli containment and removal system which can be utilized in a wide range of vessel diameters. The system is easy to use and can quickly and efficiently evacuate the containment chamber.

Abstract: A catheter handle including a handle body defining a longitudinally extending handle aperture, a connector adapted to connect a steering wire to the handle body, a piston located at least partially within the handle aperture and slidable relative to the handle aperture, the piston being adapted to be operably connected to a catheter body, and a biasing element, operably connected to the piston, to bias the piston in the distal direction. As an alternative to the biasing element, or in addition, the catheter handle may also include a steering wire anchor associated with the handle body and including a movable portion operably connected to the proximal portion of the steering wire.

Abstract: A catheter assembly for draining and collecting fluid from a body cavity has a container having an inner containment space defined therewith. An elongate tubular catheter extends longitudinally through the container. A tip member/lubricant reservoir is mounted to the catheter passage opening. A quantity of lubricant is disposed within a tip member/lubricant reservoir and lubricate the catheter as it is extended from the container.

Abstract: A sleeve assembly for use in the transition region of a catheter between a relatively stiff catheter body and a less stiff distal catheter region mediates the difference in stiffness between these two catheter regions.

Abstract: A catheter system having an epidural needle, an electrically conductive stimulation wire attached to the needle, a multi-purpose connector, which is adapted to connect to intravenous tubing for supplying local anesthesia, and an epidural catheter for supplying regional anesthesia. When the connector and needle are connected to each other, an operator can insert the needle into a patient with the needle's distal end within the nerve sheath and proximate to the nerve plexus. A voltage is applied via the wire to determine correct positioning. Then, the operator can slide the catheter through the connector and needle until the catheter's distal end is protruding out of the needle's distal end and into the nerve sheath, proximate to the nerve plexus. Then, the needle (and its associated wire) and the connector (and its associated tubing) are slidably removed from the catheter, and the catheter may be left in place.

Abstract: An ear piercing assembly includes a disposable cartridge assembly including a first and second ear piercing earring and an ear piercing earring retaining sub-assembly for releaseably supporting the ear piercing earring therein. A clutch retaining sub-assembly is integrally formed with the ear piercing earring retaining sub-assembly and releaseably supports a first and second clutch therein. An ear piercing instrument is adapted to receive the cartridge assembly and includes a plunger assembly for ejecting an ear piercing earring from the ear piercing earring retaining sub-assembly and is displaceable for selectively moving between a first position for ejecting the first ear piercing earring from the ear piercing earring retaining sub-assembly and a second position for ejecting the second ear piercing earring from the ear piercing earring retaining sub-assembly.