GB2230702A - One-piece catheter formed in a single step - Google Patents

One-piece catheter formed in a single step Download PDF

Info

Publication number
GB2230702A
GB2230702A GB9008949A GB9008949A GB2230702A GB 2230702 A GB2230702 A GB 2230702A GB 9008949 A GB9008949 A GB 9008949A GB 9008949 A GB9008949 A GB 9008949A GB 2230702 A GB2230702 A GB 2230702A
Authority
GB
United Kingdom
Prior art keywords
catheter
tip
catheter according
tubular portion
wall thickness
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.)
Withdrawn
Application number
GB9008949A
Other versions
GB9008949D0 (en
Inventor
Patrick Hugh Mcleod
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.)
SIMPLA PLASTICS
SIMPLA PLASTICS Ltd
Original Assignee
SIMPLA PLASTICS
SIMPLA PLASTICS Ltd
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 to GB898909395A priority Critical patent/GB8909395D0/en
Application filed by SIMPLA PLASTICS, SIMPLA PLASTICS Ltd filed Critical SIMPLA PLASTICS
Publication of GB9008949D0 publication Critical patent/GB9008949D0/en
Publication of GB2230702A publication Critical patent/GB2230702A/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0009Making of catheters or other medical or surgical tubes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0017Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections

Abstract

An intermittent urethal catheter 1 is formed in one piece in a single moulding step from plasticised medical grade PVC or the equivalent. The catheter 1 has a tapered cylindrical portion or funnel part 2 leading to a cylindrical tubular portion 3 which terminates in an open distal end or tip 4, there being adjacent the tip 4 two through holes or eyes 5 which are spaced apart longitudinally of the catheter 1. The holes or eyes 5 are diametrally opposite another to stabilize a red or mandrel used in the moulding step to define the catheter 1. <IMAGE>

Description

A CATHETER The invention relates to a catheter, particularly an intermittent catheter for draining urine from the bladder via the urethea.

Existing catheters of this kind are generaaly made in two parts, comprising an extruded plastic tube, and funnel component. A finishing process has then to be carried out to form a blunt end or tip opposite the funnel component. A further process has to be performed to provide fluid inlet orifices or "eyes" adjacent the blunt end or tip. The overall forming operation is time-consuming and expensive and moreover does not always result in a required degree of finish at the tip and eyes.

It is accordingly an object of the invention to seek to mitigate these disadvantages.

According to one aspect of the invention there is provided a catheter, integrally formed in one piece in a single forming step.

The forming step may comprise injection moulding.

The one piece may comprise a tapered tubular portion leading to a cylindrical tubular portion bearing a tip.

The cylindrical tubular portion may have a plurality of through holes in the wall thereof on opposite diametral sides of the portion.

The respective holes on opposite diametral sides of the portion may be longitudinally offset.

The tip may be open or closed.

In an alternative there may be no through holes, and the tip may be open and may have portions of different diameter, preferably by being castellated or stepped.

The wall thickness of the tapered tubular portion may be greater than the wall thickness of the cylindrical tubular portion.

The wall thickness of the catheter adjacent the tip may be greater than the wall thickness of the cylindrical tubular portion and less than the wall thickness of the tapered portion.

According to a second aspect, the invention provides a urine drainage system including a catheter as hereinbefore defined, by way of example, with reference to the accompanying drawing which shows a schematic cylindrical sectional view of an intermittent urethal catheter according to the invention.

Referring to the drawing there is shown an intermittent urethal catheter 1 formed in one piece in a single moulding step from plasticised medical grade PVC or the equivalent.

The catheter 1 has a tapered cylindrical portion or funnel part 2 leading to a cylindrical tubular portion 3 which terminates in an open distal end or tip 4, there being adjacent the tip 4 two through holes or eyes 5 which are spaced apart longitudinally of the catheter 1. The holes or eyes 5 are diametrally opposite another to stabilize a rod or mandrel used in the moulding step to define the catheter 1.

The wall thickness of the tapered portion 2 is 2mm, the cylindrical tubular portion 3 has a wall thickness of lmm and the tip 4 has a wall thickness of 1.25mm, the holes or eyes 5 being elongate with rounded ends, 4mm x 2mm in dimension. The overall length of the catheter 1 is 130mm, the length of the tapered portion 2 being 75mm and the cylindrical portion 3 55mm, the outside diameter of the cylindrical portion 3 being 4.5mm.

The injection moulding process provides a standardized unitary catheter of one size with a high degree of finish, i.e. smooth, on the tip and eyes.

In use, the part 2, or proximal part, is connected via the funnel to a connector such as the inlet tube of a urine collection device (not shown) while the tip 4 is inserted into a patient. The catheter thus forms part of a urine drainage or collection system.

Claims (12)

1. A catheter, integrally formed in one piece in a single forming step.
2. A catheter according to Claim 1, the forming step comprising injection moulding.
3. A catheter according to Claim 1 or Claim 2, the one piece comprising a tapered tubular portion leading to a cylindrical tubular portion bearing a tip.
4. A catheter according to Claim 3, the cylindrical tubular portion having a plurality of through holes in the wall thereof on opposite diametral sides of the portion.
5. A catheter according to Claim 4, the respective holes on opposite diametral sides of the portion being longitudinally offset.
6. A catheter according to any of Claims 3 to 5, the tip being open.
7. A catheter according to any of Claims 1 to 3, the tip being open and having portions of different diameter.
8. A catheter according to Claim 7, the tip being castellated or stepped.
9. A catheter according to any of Claims 3 to 8, the wall thickness of the tapered tubular portion being greater than the wall thickness of the cylindrical tubular portion.
10. A catheter according to any of Claims 3 to 9, the wall thickness adjacent the tip being greater than the wall thickness of the cylindrical tubular portion and less than the wall thickness of the tapered cylindrical portion.
11. A catheter, subtantially as hereinbefore described with reference to the accompanying drawing.
12. A urine drainage system, including a catheter according to any preceding Claim.
GB9008949A 1989-04-25 1990-04-20 One-piece catheter formed in a single step Withdrawn GB2230702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB898909395A GB8909395D0 (en) 1989-04-25 1989-04-25 A catheter

Publications (2)

Publication Number Publication Date
GB9008949D0 GB9008949D0 (en) 1990-06-20
GB2230702A true GB2230702A (en) 1990-10-31

Family

ID=10655669

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898909395A Pending GB8909395D0 (en) 1989-04-25 1989-04-25 A catheter
GB9008949A Withdrawn GB2230702A (en) 1989-04-25 1990-04-20 One-piece catheter formed in a single step

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898909395A Pending GB8909395D0 (en) 1989-04-25 1989-04-25 A catheter

Country Status (1)

Country Link
GB (2) GB8909395D0 (en)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6063063A (en) * 1995-06-08 2000-05-16 Engineers & Doctors A/S Catheter with an open/closing mechanism
EP1034811A1 (en) * 1999-03-11 2000-09-13 Ethicon, Inc. An intravenous catheter assembly and a method of making a combination hub and catheter
WO2003002179A2 (en) * 2001-06-29 2003-01-09 Coloplast A/S A catheter device
WO2005046959A1 (en) * 2003-11-14 2005-05-26 Unomedical A/S Injection moulding of a catheter
US7311698B2 (en) 2001-09-24 2007-12-25 Coloplast A/S Urinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
US7431876B2 (en) * 2003-11-14 2008-10-07 Unomedical A/S Injection moulding of a catheter
WO2008155145A1 (en) * 2007-06-20 2008-12-24 Unomedical A/S A catheter and a method and an apparatus for making such catheter
US7682353B2 (en) 2001-06-29 2010-03-23 Coloplast A/S Catheter device
WO2010149175A1 (en) * 2009-06-26 2010-12-29 Coloplast A/S Injection moulding catheter
US7985199B2 (en) 2005-03-17 2011-07-26 Unomedical A/S Gateway system
US8002766B2 (en) 2001-06-29 2011-08-23 Coloplast A/S Catheter assembly
US8012126B2 (en) 2006-10-31 2011-09-06 Unomedical A/S Infusion set
US8062250B2 (en) 2004-08-10 2011-11-22 Unomedical A/S Cannula device
US8221355B2 (en) 2004-03-26 2012-07-17 Unomedical A/S Injection device for infusion set
US8246588B2 (en) 2007-07-18 2012-08-21 Unomedical A/S Insertion device with pivoting action
US8303549B2 (en) 2005-12-23 2012-11-06 Unomedical A/S Injection device
US8430850B2 (en) 2007-07-03 2013-04-30 Unomedical A/S Inserter having bistable equilibrium states
US8439838B2 (en) 2006-06-07 2013-05-14 Unomedical A/S Inserter for transcutaneous sensor
US8486003B2 (en) 2007-07-10 2013-07-16 Unomedical A/S Inserter having two springs
WO2013127718A1 (en) 2012-02-27 2013-09-06 Rolsted Mould System Aps Method for manufacturing of urinary catheters
WO2013127725A1 (en) 2012-02-27 2013-09-06 Coloplast A/S Method for manufacturing of urinary catheters
WO2013127724A1 (en) 2012-02-27 2013-09-06 Rolsted Mould System Aps Method for manufacturing of urinary catheters
US8562567B2 (en) 2009-07-30 2013-10-22 Unomedical A/S Inserter device with horizontal moving part
US8790311B2 (en) 2006-06-09 2014-07-29 Unomedical A/S Mounting pad
US8945057B2 (en) 2006-08-02 2015-02-03 Unomedical A/S Cannula and delivery device
EP2129424B1 (en) 2007-02-28 2015-05-27 Coloplast A/S Catheter with openings in a tubular body having rounded edges
EP2445565B1 (en) 2009-06-26 2015-08-12 Coloplast A/S A urinary catheter
US9211379B2 (en) 2006-02-28 2015-12-15 Unomedical A/S Inserter for infusion part and infusion part provided with needle protector
EP2844451A4 (en) * 2012-04-27 2016-01-27 Watergain Ltd Manufacturing technique and associated product
US9254373B2 (en) 2008-12-22 2016-02-09 Unomedical A/S Medical device comprising adhesive pad
US9415159B2 (en) 2010-03-30 2016-08-16 Unomedical A/S Medical device
US9440051B2 (en) 2011-10-27 2016-09-13 Unomedical A/S Inserter for a multiplicity of subcutaneous parts
US9533092B2 (en) 2009-08-07 2017-01-03 Unomedical A/S Base part for a medication delivery device
US9566384B2 (en) 2008-02-20 2017-02-14 Unomedical A/S Insertion device with horizontally moving part
US9585784B2 (en) 2011-08-29 2017-03-07 Coloplast A/S Catheter activation by handle removal
US9662817B2 (en) 2012-09-28 2017-05-30 Hollister Incorporated Method and apparatus for injection moulding of an elongated hollow article
US9724127B2 (en) 2010-09-27 2017-08-08 Unomedical A/S Insertion system and insertion kit
US10369277B2 (en) 2005-09-12 2019-08-06 Unomedical A/S Invisible needle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901965A (en) * 1972-02-14 1975-08-26 Iii Henry W Honeyman Method of making an inflatable catheter
GB1524704A (en) * 1975-05-27 1978-09-13 Int Paper Co Apparatus and process for moulding of hollow articles
US4750877A (en) * 1983-05-23 1988-06-14 Taut, Inc. Injection molding of a thin-walled elongated tubular product such as a catheter
DE3825488A1 (en) * 1988-07-27 1990-02-08 Michael Greive Cylindrical indwelling vein cannula and method of producing it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901965A (en) * 1972-02-14 1975-08-26 Iii Henry W Honeyman Method of making an inflatable catheter
GB1524704A (en) * 1975-05-27 1978-09-13 Int Paper Co Apparatus and process for moulding of hollow articles
US4750877A (en) * 1983-05-23 1988-06-14 Taut, Inc. Injection molding of a thin-walled elongated tubular product such as a catheter
DE3825488A1 (en) * 1988-07-27 1990-02-08 Michael Greive Cylindrical indwelling vein cannula and method of producing it

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6063063A (en) * 1995-06-08 2000-05-16 Engineers & Doctors A/S Catheter with an open/closing mechanism
EP1034811A1 (en) * 1999-03-11 2000-09-13 Ethicon, Inc. An intravenous catheter assembly and a method of making a combination hub and catheter
US6192568B1 (en) 1999-03-11 2001-02-27 Ethicon, Inc. Method of making an intravenous catheter assembly
US8002766B2 (en) 2001-06-29 2011-08-23 Coloplast A/S Catheter assembly
WO2003002179A3 (en) * 2001-06-29 2003-12-18 Coloplast As A catheter device
US8986286B2 (en) 2001-06-29 2015-03-24 Coloplast A/S Catheter device
US7094220B2 (en) 2001-06-29 2006-08-22 Coloplast A/S Catheter assembly including a catheter applicator
WO2003002179A2 (en) * 2001-06-29 2003-01-09 Coloplast A/S A catheter device
AU2002319114B2 (en) * 2001-06-29 2008-03-06 Coloplast A/S A catheter device
CN100405995C (en) * 2001-06-29 2008-07-30 科洛普拉斯特公司 A catheter device
US8066693B2 (en) 2001-06-29 2011-11-29 Coloplast A/S Catheter device
EP1420845B2 (en) 2001-06-29 2015-12-09 Coloplast A/S A method of producing a catheter and a catheter
US10441454B2 (en) 2001-06-29 2019-10-15 Coloplast A/S Urinary catheter provided as a package
US7682353B2 (en) 2001-06-29 2010-03-23 Coloplast A/S Catheter device
EP1404403B2 (en) 2001-06-29 2016-10-19 Coloplast A/S A catheter device
US7922712B2 (en) 2001-09-24 2011-04-12 Coloplast A/S Urinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
US7311698B2 (en) 2001-09-24 2007-12-25 Coloplast A/S Urinary catheter assembly allowing for non-contaminated insertion of the catheter into a urinary canal
WO2005046959A1 (en) * 2003-11-14 2005-05-26 Unomedical A/S Injection moulding of a catheter
US7887737B2 (en) 2003-11-14 2011-02-15 Unomedical, A/S Injection moulding of a catheter
US7431876B2 (en) * 2003-11-14 2008-10-07 Unomedical A/S Injection moulding of a catheter
US8221355B2 (en) 2004-03-26 2012-07-17 Unomedical A/S Injection device for infusion set
US8287516B2 (en) 2004-03-26 2012-10-16 Unomedical A/S Infusion set
US8062250B2 (en) 2004-08-10 2011-11-22 Unomedical A/S Cannula device
US7985199B2 (en) 2005-03-17 2011-07-26 Unomedical A/S Gateway system
US10369277B2 (en) 2005-09-12 2019-08-06 Unomedical A/S Invisible needle
US8303549B2 (en) 2005-12-23 2012-11-06 Unomedical A/S Injection device
US9278173B2 (en) 2005-12-23 2016-03-08 Unomedical A/S Device for administration
US9211379B2 (en) 2006-02-28 2015-12-15 Unomedical A/S Inserter for infusion part and infusion part provided with needle protector
US8439838B2 (en) 2006-06-07 2013-05-14 Unomedical A/S Inserter for transcutaneous sensor
US8790311B2 (en) 2006-06-09 2014-07-29 Unomedical A/S Mounting pad
US8945057B2 (en) 2006-08-02 2015-02-03 Unomedical A/S Cannula and delivery device
US8012126B2 (en) 2006-10-31 2011-09-06 Unomedical A/S Infusion set
EP2129424B1 (en) 2007-02-28 2015-05-27 Coloplast A/S Catheter with openings in a tubular body having rounded edges
US9427548B2 (en) 2007-02-28 2016-08-30 Coloplast A/S Method for rounding edges of openings in a tubular body and a product thereof
WO2008155145A1 (en) * 2007-06-20 2008-12-24 Unomedical A/S A catheter and a method and an apparatus for making such catheter
DE202008017390U1 (en) 2007-06-20 2009-08-13 Unomedical A/S Catheter and device for making such a catheter
AU2008266382B2 (en) * 2007-06-20 2013-06-27 Unomedical A/S A catheter and a method and an apparatus for making such catheter
US9320869B2 (en) 2007-06-20 2016-04-26 Unomedical A/S Apparatus for making a catheter
US9186480B2 (en) 2007-06-20 2015-11-17 Unomedical A/S Apparatus for making a catheter
RU2469751C2 (en) * 2007-06-20 2012-12-20 Уномедикал А/С Method of catheter manufacturing and device for its realisation
US8430850B2 (en) 2007-07-03 2013-04-30 Unomedical A/S Inserter having bistable equilibrium states
US8486003B2 (en) 2007-07-10 2013-07-16 Unomedical A/S Inserter having two springs
US8246588B2 (en) 2007-07-18 2012-08-21 Unomedical A/S Insertion device with pivoting action
US9566384B2 (en) 2008-02-20 2017-02-14 Unomedical A/S Insertion device with horizontally moving part
US10376637B2 (en) 2008-02-20 2019-08-13 Unomedical A/S Insertion device with horizontally moving part
US9254373B2 (en) 2008-12-22 2016-02-09 Unomedical A/S Medical device comprising adhesive pad
WO2010149175A1 (en) * 2009-06-26 2010-12-29 Coloplast A/S Injection moulding catheter
EP2445565B1 (en) 2009-06-26 2015-08-12 Coloplast A/S A urinary catheter
US9084867B2 (en) 2009-06-26 2015-07-21 Coloplast A/S Injection moulding catheter
RU2527576C2 (en) * 2009-06-26 2014-09-10 Колопласт А/С Moulded catheter
US10010697B2 (en) 2009-06-26 2018-07-03 Coloplast A/S Urinary catheter
CN102802714A (en) * 2009-06-26 2012-11-28 科洛普拉斯特公司 Injection moulding catheter
US8562567B2 (en) 2009-07-30 2013-10-22 Unomedical A/S Inserter device with horizontal moving part
US9533092B2 (en) 2009-08-07 2017-01-03 Unomedical A/S Base part for a medication delivery device
US9415159B2 (en) 2010-03-30 2016-08-16 Unomedical A/S Medical device
US9724127B2 (en) 2010-09-27 2017-08-08 Unomedical A/S Insertion system and insertion kit
US9585784B2 (en) 2011-08-29 2017-03-07 Coloplast A/S Catheter activation by handle removal
US9440051B2 (en) 2011-10-27 2016-09-13 Unomedical A/S Inserter for a multiplicity of subcutaneous parts
WO2013127724A1 (en) 2012-02-27 2013-09-06 Rolsted Mould System Aps Method for manufacturing of urinary catheters
WO2013127725A1 (en) 2012-02-27 2013-09-06 Coloplast A/S Method for manufacturing of urinary catheters
WO2013127718A1 (en) 2012-02-27 2013-09-06 Rolsted Mould System Aps Method for manufacturing of urinary catheters
EP2844451A4 (en) * 2012-04-27 2016-01-27 Watergain Ltd Manufacturing technique and associated product
US9662817B2 (en) 2012-09-28 2017-05-30 Hollister Incorporated Method and apparatus for injection moulding of an elongated hollow article

Also Published As

Publication number Publication date
GB9008949D0 (en) 1990-06-20
GB8909395D0 (en) 1989-06-14

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)