公开(公告)号：DE60006133T2

公开(公告)日：2004-07-22

申请号：DE60006133

申请日：2000-08-31

Applicant: BAXTER INT

Inventor： QIN CHUAN ,  RYAN T ,  LING T ,  ROSTRON L ,  DING S ,  WOO LECON ,  MIZENER R ,  LAL K

IPC: A61L29/04 ,  A61L29/08 ,  A61L31/00 ,  A61M5/14 ,  A61M1/14 ,  A61M5/142 ,  A61M25/00 ,  A61M39/08 ,  B28B1/52 ,  B28B7/00 ,  B28B7/34 ,  B28B7/46 ,  B29C47/00 ,  B29C47/06 ,  B29C55/22 ,  C08J7/06 ,  F24C3/00

Abstract: The present invention provides a method for fabricating a medical tubing. The method includes the steps of: (1) providing a material selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the ethylene copolymers are obtained by copolymerizing ethylene with a comonomer selected from the group consisting of lower alkyl olefins, lower alkyl esters of a carboxylic acid and lower alkene esters of a carboxylic acid, the lower alkyl and lower alkene each have from 3-18 carbons, or blends thereof; (2) providing an extruder with an extrusion die; (3) extruding the material into a medical tubing; (4) providing a surface modifier solution; (5) preheating the surface modifier solution to a temperature within the range of 50-80° C.; and (6) applying the preheated solution onto the tubing at it exits the extrusion die when the tubing is in a molten state or a semi-molten state.

公开(公告)号：DE69914285D1

公开(公告)日：2004-02-26

申请号：DE69914285

申请日：1999-05-24

Applicant: BAXTER INT

Inventor： WOO LECON ,  LING T ,  QIN CHUAN ,  LAL K ,  DING S ,  ROSTRON L ,  MIZENER R ,  RYAN T

IPC: F16L11/04 ,  A61L29/00 ,  A61L29/04 ,  A61L31/00 ,  A61M5/14 ,  A61M5/142 ,  A61M39/08 ,  B29C55/22 ,  B29K105/24 ,  B29L23/00

Abstract: The present invention provides a method of using a medical tubing with a pump for administering measured amounts of a beneficial fluid over time to a patient comprising the steps of providing a tubing having a first layer selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the copolymers of ethylene are an ethylene monomer copolymerized with at least one monomer selected from the group consisting of lower alkyl olefins, lower alkyl esters of a carboxylic acid, and lower alkene esters of a carboxylic acid, the lower alkyl and lower alkene having from 3 to 18 carbons, the tubing having been exposed to a sterilization dosage of radiation of from about 15 to about 45 kGys; and pumping fluid through the tubing with the pump.

公开(公告)号：DE69530909D1

公开(公告)日：2003-07-03

申请号：DE69530909

申请日：1995-07-18

Applicant: BAXTER INT

Inventor： LAL K ,  DING SAMUEL ,  PRISCO R ,  BLACK S ,  PASSAGLIA ROBERT ,  RICHARDSON JAMES

IPC: A61M5/168 ,  G05D7/01 ,  A61M1/00

Abstract: The present invention provides an intravenous fluid flow regulator 10 for controlling the I.V. administration of medical fluid to a patient. The fluid flow regulator 10 provides a housing 12 having a top 18 and a bottom 20. A flexible diaphragm 14 is positioned within housing 12. A diaphragm holder 16 is provided inside housing 12 for holding a sealing edge 56 of flexible diaphragm 14 in fluid sealing engagement with diaphragm holder 16. The housing 12 and flexible diaphragm 14 define an inlet fluid reservoir 62 and an outlet fluid reservoir 64. The diaphragm holder 16 defines a by-pass fluid channel 54 from inlet fluid reservoir 62, around diaphragm 14, to outlet fluid reservoir 64. The flexible diaphragm 14 being flexible to alternatively move into inlet fluid reservoir 62 and outlet fluid reservoir 64 depending on a fluid pressure differential between inlet fluid reservoir 62 and outlet fluid reservoir 64. A fluid inlet 24 is connected to housing top 18 to provide an inlet fluid passage 27 from an I.V. bag containing medical fluid to inlet fluid reservoir 62. A fluid outlet 34 is connected to housing bottom 20 to provide an outlet fluid passage 44 from outlet fluid reservoir 64 to the patient. At least one rib 48 connected to bottom 20 is provided to prevent movement of flexible diaphragm 14 into outlet fluid reservoir 64 when flexible diaphragm 14 moves into outlet fluid reservoir 64 a predetermined distance.

公开(公告)号：DE69714179T2

公开(公告)日：2003-04-03

申请号：DE69714179

申请日：1997-04-25

Applicant: BAXTER INT

Inventor： RYAN T ,  QIN CHUAN ,  ROSTRON L ,  LAL K ,  DING S ,  MIZENER R ,  WOO LECON ,  LING T ,  MILLER F

IPC: A61M5/14 ,  A61L29/04 ,  A61L29/06 ,  A61L31/00 ,  A61M25/00 ,  B29C47/00 ,  B29C55/22 ,  B29C71/02 ,  B29K23/00 ,  B29K105/24 ,  B29L23/00 ,  A61L29/00

Abstract: The present invention provides a method for fabricating flexible medical tubings including the steps of providing a polymeric material, forming a tubing from the polymeric material, the tubing having a longitudinal axis and an initial diameter, and orienting the tubing along the longitudinal axis of the tubing to reduce the diameter of the tubing to define an oriented diameter.