U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Yasko, John D.


Primary examiner statistics: 4711 patents; average approval time: 614 days
Assistant examiner statistics: 0 patents; average approval time: 0 days

Patents as Primary Examiner

1                      
NumberTitleIssue Date
6461336Cardiological medical equipment
An angioplastic device used for treating the areas surrounding bifurcated vessels. The device has an elongated and relatively flexible tubular guiding catheter assembly that slidably houses a guide positioning assembly therein. The elongated tubular guidi...
10/08/2002
6436070Catheter insertion device with retractable needle
A non-reusable needle-bearing safety medical device is provided. The device is operable for inserting an intravenous catheter into a patient. The device includes a needle for piercing the patient's skin and guiding the catheter into the vein of the patien...
08/20/2002
6432092Tissue mapping injection device
A tissue mapping injection device suitable for use during a lymphatic breast mapping procedure is provided. The device includes a housing having an elongated body portion extending distally therefrom. A plunger is slidably positioned within the housing. A...
08/13/2002
6325777Low profile catheter valve and inflation adaptor
Disclosed herein is a low profile catheter valve comprising a movable sealer portion positioned within the inflation lumen of a catheter. The sealer portion forms a fluid tight seal with the inflation lumen by firmly contacting the entire circumference of...
12/04/2001
6322548Delivery catheter system for heart chamber
A delivery catheter system for delivering a substance delivery member into a patient's left ventricle which includes a first delivery catheter with a shaped distal extremity configured to be aligned with or parallel to a longitudinal axis or long dimensio...
11/27/2001
6312414Blood-gas separation device
A blood suction apparatus for aspirating blood from a patient is developed as a one-hand held instrument having a handgrip. A centrifuge chamber, shaped to narrow from its tangentially directed top blood inlet to its bottom blood outlet end, like a funnel...
11/06/2001
6302866Catheter head for subcutaneous administration of an substance
The present invention provides a catheter head including a cannula housing, a needle holder connectable to the cannula housing and a guide sleeve associated with the needle holder for positioning and guiding a connecting needle, and for being narrowly sli...
10/16/2001
6280413Thrombolytic filtration and drug delivery catheter with a self-expanding portion
A thrombolytic filtration and drug delivery catheter is disclosed comprising a shaft which longitudinal ribs. The ribs are compressed while being advanced to the site of interest and are released at the site, flaring to a diameter greater than the diamete...
08/28/2001
6273869Valve connector
The hollow cannula is made with a smooth tip to avoid sharp corners on the inside diameter or outside diameter in order to avoid scraping or scoring of a slit or pre-pre-pierced septum during passage through the septum. The cannula may be employed in vari...
08/14/2001
6267749Single use syringe with breakaway plunger
A syringe is provided that comprises a plunger which is adapted to be locked in place when it is fully compressed. The plunger comprises a frangible section which has a breaking strength less than the holding strength of the locking structure. Thus, if an...
07/31/2001
6264635Active magnetic bearing system for blood pump
An implantable rotary blood pump including a rotor mounted for rotation within a pump housing. The rotor has a shaft portion and an impeller carried by the shaft portion. A rotor motor is provided, with the motor including a plurality of permanent magnets...
07/24/2001
6261259Needle removal and containment device and method of using same
A needle retraction device for removing a needle from a patient. The needle retraction device comprising a housing having an exterior wall which defines an interior compartment. A moveable member, having a pair of spaced apart movable legs or shoulders, s...
07/17/2001
6258113Needle herniorrhaphy devices
Guidewire-deliverable devices and methods of using the devices for separating adjacent layers of tissue and for delivering a surgical prosthesis to an operating site. A guidewire-deliverable cannula provides an elongate window for accessing the operating ...
07/10/2001
6258080Kink-free spiral-wound catheter
This invention is a surgical device. In particular, it is a catheter suitable for treating a tissue target within the body, which target is accessible through the vascular system. Central to the invention is the use of stiffener ribbons, typically metalli...
07/10/2001
6248093Compact pump drive system
An improved pump is provided for controlled delivery of fluids wherein the pump includes a reservoir and a movable piston. A plunger slide is in removable contact with the movable piston. A motor, is operably coupled to a drive member, such as a drive scr...
06/19/2001
6241710Hypodermic needle with weeping tip and method of use
The invention provides surgical needles with a porous distal portion from which a liquid injectate will weep or ooze multidirectionally under injection pressure while the porous distal portion of the needle is inserted into a body surface. The porous dist...
06/05/2001
6241707Safety needle cannula module that is activated by a safety syringe and plunger module
A safety needle cannula module in interchangeable combination with a safety syringe and plunger module, wherein the safety needle cannula module is formed with one of a variety of needle cannula sizes and wherein said safety syringe may be one of a variet...
06/05/2001
6238374Hazardous fluid infuser
An infuser for transferring hazardous treatment fluids to and from a medical application includes a spill containing housing having a medical application connecting element and a syringe seat. The syringe seat of the infuser leads to a syringe connecting ...
05/29/2001
6234999Compact needle shielding device
A catheter and introducer needle assembly with needle shield that is connected to the needle hub by a pleated tether. The tether defines a plurality of holes therein to allow the introducer needle to extend through the tether. The tether prevents unwanted...
05/22/2001
6235006Needle guard and assembly
Needle guards are disclosed for use with needle assemblies comprising a needle hub that joins a flexible trailing tube to a medical needle, the normally open front ends of the guards being closeable after a needle and hub have been pulled therein by the t...
05/22/2001
6235004Injection syringe
The present invention provides an injection syringe comprises a housing including a holder for containing a cartridge of medicine, a piston rod with a non-circular cross-section having an outer thread, a piston rod drive, a one way coupling having an annu...
05/22/2001
6234996Integrated inflation/deflation device and method
An integrated inflation/deflation device provides easy, precise delivery of a small amount of fluid for proper inflation of a low volume surgical balloon and similarly provides easy and fast deflation of the balloon. A preferred embodiment includes a low ...
05/22/2001
6231560Method and apparatus for automatically controlling the level of medication
A method and apparatus which captures relevant information pertaining to a patient's physiological conditions, automatically adjusts the amount of medication to optimize the treatment of pain and improve the patient's quality of life is described....
05/15/2001
6231543Single lumen balloon catheter
A dilation catheter having a catheter shaft with an inner lumen for receiving a guidewire and an inflatable balloon member located at the distal portion of the shaft in fluid communication with the inner lumen. The catheter includes a distal seal disposed...
05/15/2001
6231561Method and apparatus for closing a body lumen
Disclosed is a closure catheter, for closing a body cavity such as a vessel, or the left atrial appendage of the heart. The closure catheter includes a plurality of deployable tissue anchors, which may be laterally deployed into surrounding tissue. The an...
05/15/2001
6228072Shaft for medical catheters
Several improvements are provided in the design of a catheter shaft to reduce costs and improve performance. In one aspect, a small notch is fabricated into a catheter tube by a nonlaser process such as electric discharge machining (EDM) or mechanical gri...
05/08/2001
6228054Interchangeable safety needle cannula module that is activated by a safety syringe and plunger module
A safety needle cannula module that is interchangeable in combination with a safety syringe and plunger module, wherein the safety needle cannula module is formed with one of a variety of needle cannula sizes and wherein a safety syringe may be one of a v...
05/08/2001
6224574Combined scalpel and syringe device
A combined scalpel and syringe device 10 for dispensing fluid medicants at an incision site wherein the device 10 includes a hollow handle member 20 dimensioned to receive a plunger member 40 for forcing fluid from the interior of the handle member 20 thr...
05/01/2001
6224577Syringes and plungers for use therein
The present invention provides a plunger for use in a syringe and a syringe comprising such a plunger. The plunger includes a pressure member extending around the circumference of a generally cylindrical body of the plunger. The pressure member is in subs...
05/01/2001
6224586Positioning device
A catheter position guide (100) includes a first open channel (104) along the length of the position guide (100) designed to receive a catheter (202). An optional second channel (112) substantially on the opposite side of the first channel (104) is design...
05/01/2001
6224567Modified disposable injector device
The present invention is a modified single use hand-operated injector device consisting of a plunger, a base, a snap means for resisting plunger movement and an injection means for injecting parenteral medication through a skin surface of a patient. The i...
05/01/2001
6224588Flexible finger latching mechanism
A mechanical latching device is provided for threaded connections, such as those found in a medical syringe. The connections each have a thread profile with crest and root elements. At least one flexible finger or projection extends outwardly from within ...
05/01/2001
6224568Dual-chamber type injector and connector used therefor
A needle connecting portion of a syringe which includes a drug accommodating chamber accommodating a first component is arranged opposite to a takeout port of a hermetically closed container which includes a container chamber accommodating a second compon...
05/01/2001
6224569Compact needle point shield
A catheter and introducer needle assembly with a compact needle shield is provide. The introducer needle includes an enlarged diameter portion. The needle shield is disposed inside the catheter hub. The needle shield includes a transverse barrier to preve...
05/01/2001
6221042Balloon with reversed cones
A catheter assembly including a balloon which incorporates a reverse-cone design for improved stent delivery. The reverse-cone design provides an inflatable area which extends longitudinally over the balloon waist. When folded or deflated, the portions of...
04/24/2001
6221040Method of monitoring a vascular access and an apparatus for extracorporeal treatment of blood with a device for monitoring the vascular access
A method and device for monitoring a vascular access during a dialysis treatment in which the pressures in both the arterial and venous branches of the extracorporeal blood system are monitored by pressure sensors. Characteristic values for the condition ...
04/24/2001
6221060Urethral device with anchoring system
A device that comprises a tubular-shaped body that is insertable into a body passageway or cavity, in particular the urethra, and that has an exterior surface having one or more anchors located thereon that aid in movement of the device with a minimum of ...
04/24/2001
6221057Hemostasis valve, system and assembly
A hemostasis valve including a collapsible membrane in a portion of a through-lumen. Fluid pressure in a chamber surrounding the collapsible membrane assists in sealing the collapsible membrane around an operating device inserted through the hemostasis va...
04/24/2001
6221041Fluid transfer device connecting a medicinal vessel and an IV bag in closed system
A fluid transfer device connecting a medicinal vessel and an intravenous (IV) bag for enabling the mixing in closed system of the two products contained therein by means of a syringe, comprising a three-way plug valve assembly (3) with a first port ending...
04/24/2001
6221052Retracting needle syringe
A retracting needle syringe includes a barrel having a chamber, an open proximal end and an open distal end including a passageway therethrough having a proximal end and a distal end. A plunger is slidably positioned in fluid-tight engagement with an insi...
04/24/2001
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