CA2215147A1 - Method of fabricating a heater coil for a catheter - Google Patents

Method of fabricating a heater coil for a catheter

Info

Publication number
CA2215147A1
CA2215147A1 CA002215147A CA2215147A CA2215147A1 CA 2215147 A1 CA2215147 A1 CA 2215147A1 CA 002215147 A CA002215147 A CA 002215147A CA 2215147 A CA2215147 A CA 2215147A CA 2215147 A1 CA2215147 A1 CA 2215147A1
Authority
CA
Canada
Prior art keywords
catheter
coated
lead
pvc
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002215147A
Other languages
French (fr)
Other versions
CA2215147C (en
Inventor
Thomas Haynes Mcgaffigan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ICU Medical Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/404,893 external-priority patent/US5676784A/en
Application filed by Individual filed Critical Individual
Publication of CA2215147A1 publication Critical patent/CA2215147A1/en
Application granted granted Critical
Publication of CA2215147C publication Critical patent/CA2215147C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A heater (12) for a catheter (10) used in monitoring constant cardiac output is fabricated using a bifilar wire (21) coated with polyvinyl chloride (PVC) like that used for the catheter. The bifilar wire is coated with the PVC using a conventional extrusion technique, producing a coated lead (24, 32). The coated lead is wrapped around the exterior surface of the catheter, forming a helical coil. Heat is applied to the coated lead to melt the PVC coating, causing it to bond the lead to the catheter. The melted PVC also flows into gaps (23) or notches between adjacent coils of the lead, producing a relatively smooth outer surface for the heater when cooled.
CA002215147A 1995-03-15 1996-02-15 Method of fabricating a heater coil for a catheter Expired - Lifetime CA2215147C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/404,893 US5676784A (en) 1995-03-15 1995-03-15 Method of fabricating a heater coil for a catheter used to monitor cardiac output
US08/404,893 1995-03-15
PCT/US1996/001996 WO1996028089A1 (en) 1995-03-15 1996-02-15 Method of fabricating a heater coil for a catheter

Publications (2)

Publication Number Publication Date
CA2215147A1 true CA2215147A1 (en) 1996-09-19
CA2215147C CA2215147C (en) 2006-02-14

Family

ID=35892314

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002215147A Expired - Lifetime CA2215147C (en) 1995-03-15 1996-02-15 Method of fabricating a heater coil for a catheter

Country Status (1)

Country Link
CA (1) CA2215147C (en)

Also Published As

Publication number Publication date
CA2215147C (en) 2006-02-14

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Effective date: 20160215