1
Sakharam D Mahurkar, Smriti S Mahurkar: Reinforced multiple lumen catheter. Arnold White & Durkee, June 22, 1993: US05221255 (262 worldwide citation)

A dual-lumen catheter comprises an elongated cylindrical tube made of silicone and having an internal septum extending along the length thereof to form a pair of longitudinal lumens. A hollow conical tip is formed on the distal end of the tube with the outside surface of the conical tip merging smoo ...


2
Sakharam D Mahurkar: Double lumen hemodialysis catheter. Vogel Dithmar Stotland Stratman & Levy, January 16, 1979: US04134402 (254 worldwide citation)

A double lumen continuous flow hemodialysis needle and cannula having contiguous lumens of different lengths, the shorter lumen acting as blood intake lumen and the longer as a blood return lumen, each lumen having a beveled edge sloping outwardly and away from the needle which can be inserted percu ...


3
Sakharam D Mahurkar: Double lumen catheter. Leydig Voit & Mayer, February 4, 1986: US04568329 (235 worldwide citation)

A double lumen catheter has an elongated tube with a proximal first cylindrical portion having an internal divider to define a pair of discrete lumens including a shorter lumen opening at approximately the distal end of the first cylindrical portion, and a longer lumen opening at the distal end of t ...


4
Sakharam D Mahurkar: Safety syringe. Stephen G Rudisill, Jenkens & Gilchrist, March 27, 2001: US06206856 (213 worldwide citation)

A single-use safety syringe assembly comprises an elongated, generally cylindrical barrel which forms a hollow nozzle located at the distal end of the barrel and which opens into the interior of the barrel. A plunger is slidably mounted in the barrel and forms a longitudinal cavity. A needle holder ...


5
Sakharam D Mahurkar: Double lumen catheter. Stephen G Rudisill, September 8, 1987: US04692141 (200 worldwide citation)

A double lumen catheter has an elongated tube with a proximal first cylindrical portion having an internal divider to define a pair of discrete lumens including a shorter lumen opening at approximately the distal end of the first cylindrical portion, and a longer lumen opening at the distal end of t ...


6
Sakharam D Mahurkar: Smooth bore double lumen catheter. Leydig Voit & Mayer, April 22, 1986: US04583968 (198 worldwide citation)

A double-current catheter having an elongated cylindrical tube for injection and removal of fluid is provided with a smooth conical tapered tip that smoothly merges with the cylindrical surface of the tube so that insertion trauma and the possibility of kinking are minimized. To provide improved dil ...


7
Sakharam D Mahurkar: Reinforced multiple-lumen catheter and apparatus and method for making the same. Arnold White & Durkee, December 20, 1994: US05374245 (189 worldwide citation)

A method of making a multiple-lumen catheter using a co-extrusion die comprises the step of forming an elongated cylindrical tube made of silicone and having an internal septum extending along the length thereof to form at least a pair of longitudinal lumens. While the elongated cylindrical tube is ...


8
Sakharam D Mahurkar: Triple-lumen critical care catheter. Arnold White & Durkee, January 3, 1995: US05378230 (189 worldwide citation)

A multiple-lumen intravenous catheter for critical-care applications comprises an elongated cylindrical tube. This tube has a first septum dividing the interior of the catheter into a large lumen having an elliptical cross section, and a smaller lumen having a crescent-shaped cross section. The smal ...


9
Sakharam D Mahurkar: Multiple-lumen catheter. Arnold White & Durkee, June 22, 1993: US05221256 (184 worldwide citation)

A multiple-lumen catheter comprises an elongated cylindrical tube which has an internal diametral septum extending along the length thereof. This septum and the walls of the tube form at least three longitudinal lumens. The first and second lumens have substantially semi-circular transverse cross-se ...


10
Sakharam D Mahurkar: Dual-lumen catheter-connecting system. Stephen G Rudisill, January 23, 1990: US04895561 (184 worldwide citation)

A dual-lumen catheter assembly comprising a dual-lumen catheter, a Y connector having one end fastened to the proximal end of the catheter, and a pair of extension tubes each having one end fastened to the opposite end of the connector from the catheter, each of the extension tubes being bent back t ...