GB2353078A - Automatic locking threaded connector - Google Patents

Automatic locking threaded connector Download PDF

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Publication number
GB2353078A
GB2353078A GB9918705A GB9918705A GB2353078A GB 2353078 A GB2353078 A GB 2353078A GB 9918705 A GB9918705 A GB 9918705A GB 9918705 A GB9918705 A GB 9918705A GB 2353078 A GB2353078 A GB 2353078A
Authority
GB
United Kingdom
Prior art keywords
parts
thread
void
threaded connection
barb
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
GB9918705A
Other versions
GB9918705D0 (en
GB2353078B (en
Inventor
John Targell
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.)
NMT Group PLC
Original Assignee
NMT Group PLC
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
Application filed by NMT Group PLC filed Critical NMT Group PLC
Priority to GB9918705A priority Critical patent/GB2353078B/en
Publication of GB9918705D0 publication Critical patent/GB9918705D0/en
Publication of GB2353078A publication Critical patent/GB2353078A/en
Application granted granted Critical
Publication of GB2353078B publication Critical patent/GB2353078B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-connectors

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Pulmonology (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The connector is particularly though by no means exclusively for joining components of medical fluid handling devices such as syringes, cannulas, catheters, etc. It includes a male part (11) and a female part (10). Between the upstanding portion (14) of the thread on each part is a void (15). In the void (15) of one of the parts is a barb (16). The arrangement being such that as the parts are screwed together at least one of the parts resiliently deforms to allow the barb (16) to latch behind an end of a thread at the void (15) in the other part to prevent disconnection by unscrewing of the parts.

Description

2353078 THREADED CONNECTION This invention concerns a threaded connection
between a male part and a female part which, when properly threadedly engaged, cannot be disconnected, particularly, though by no means exclusively, suitable for joining components of fluid handling medical devices such as syringes, cannulas and catheters for example.
According to the present invention there is provided a threaded connection between a male and a female part, there being a void in an upstanding portion of the thread on each part and a barb in the void on one of the parts, the arrangement being such that when the parts are threadedly engaged, resilient deformation of at least one of the parts enables the barb to latch behind an end of a thread at the void in the other of the parts to prevent subsequent disconnection of the parts.
There may be on each part a two-start thread, the upstanding portion of each thread having a circumferential extent of less than 180' whereby there are voids between the ends of the two threads on each part and diametrically opposed barbs in the voids on the male part.
The height of each thread on the female part may increase from one end to the other which provides the abutment against which a barb latches.
The invention will be further apparent from the following description with reference to the several figures of the accompanying drawings, which show by way of example only one form of threaded connection embodying same.
Of the drawings:
Figure I shows a perspective view of a syringe barrel and connector for a needle mount; Figure 2 shows a perspective view of the forward end of the syringe barrel on an enlarged scale; and Figure 3 shows a perspective view of the connector on an enlarged scale.
Referring now to the drawings, it will be seen that the threaded connection of the invention is provided between the barrel 10 of a syringe and a connector I I which provides a means for mounting a hypodermic needle (not shown).
As best seen from Figures 2 and 3, there is a threaded female socket part 12 at the forward end of the barrel 10 adapted to receive a threaded male part 13 of the connector 11.
Each of the parts 12 and 13 is provided with a two-start right handed thread. The upstanding portion 14 of each of the four threads has a circumferential extent of less than 180' whereby there are voids 15 between the ends of the two threads on each part.
On the part 13 are diametrically opposed barbs 16 in the voids 15.
When the parts are threadedly connected the barbs 16 are introduced to the voids 15 on the part 12 before relatively rotating the two parts. During rotation the part 12 which is of a plastics material resiliently deforms as the barbs 16 override the portions 14 of the threads on the part 12 before the barbs latch behind the ends of the threads on the part 12 to lock the parts 12 and 13 against disconnection.
The height of each thread on the female part increases from one end to the other which provides the abutment against which the barbs 16 latch to facilitate the threading operation and deformation of the part 12.
It will be appreciated that it is not intended to limit the invention to the above example only, many variations, such as might readily occur to one skilled in the art, being possible, without departing from the scope thereof as defined by the appended claims.
For example, only one of the parts need be deformable, the other being rigid and of a material such as glass for example.

Claims (5)

1. A threaded connection between a male and a female part, there being a void in an upstanding portion of the thread on each part and a barb in the void on one of the parts, the arrangement being such that when the parts are threadedly engaged, resilient deformation of at least one of the parts enables the barb to latch behind an end of a thread at the void in the other of the parts to prevent subsequent disconnection of the parts.
2. A threaded connection according to claim I comprising on each part a two-start thread, the upstanding portion of each thread having a circumferential extent of less than 1800 whereby there are voids between the ends of the two threads on each part and diametrically opposed barbs in the voids on the male part.
3. A threaded connection according to claim I wherein the height of each thread on the female part increases from one end to the other which provides the abutment against which a barb latches.
4. A threaded connection according to either claim I or claim 2 wherein the threads are right-handed.
5. A threaded connection according to any preceding claim wherein at least the female part is of a plastics material.
GB9918705A 1999-08-10 1999-08-10 Threaded connection Expired - Fee Related GB2353078B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9918705A GB2353078B (en) 1999-08-10 1999-08-10 Threaded connection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9918705A GB2353078B (en) 1999-08-10 1999-08-10 Threaded connection

Publications (3)

Publication Number Publication Date
GB9918705D0 GB9918705D0 (en) 1999-10-13
GB2353078A true GB2353078A (en) 2001-02-14
GB2353078B GB2353078B (en) 2003-03-05

Family

ID=10858810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9918705A Expired - Fee Related GB2353078B (en) 1999-08-10 1999-08-10 Threaded connection

Country Status (1)

Country Link
GB (1) GB2353078B (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004105842A1 (en) 2003-05-27 2004-12-09 Nmt Group Plc Syringes with restrictor
WO2006049708A1 (en) * 2004-10-29 2006-05-11 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
WO2008144447A3 (en) * 2007-05-16 2009-02-26 Icu Medical Inc Medical connector with closeable male luer
US7803140B2 (en) 2005-07-06 2010-09-28 Icu Medical, Inc. Medical connector with closeable male luer
US7866614B2 (en) 2004-11-12 2011-01-11 Bsh Home Appliances Corporation Apparatus for setting the spacing of a free standing range from a floor
WO2011086181A1 (en) * 2010-01-18 2011-07-21 Neolix Sas Dentistry instruments including an inseparable assembly of two components, one male and the other female, and corresponding technique for assembling the two male/female components
US20130313823A1 (en) * 2011-01-31 2013-11-28 Shl Group Ab Coupling Arrangement
WO2014186685A2 (en) * 2013-05-16 2014-11-20 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating opposing barb
WO2014186701A2 (en) * 2013-05-16 2014-11-20 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating micro-threads
WO2014186707A3 (en) * 2013-05-16 2015-01-08 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating crushable ribs
US9707346B2 (en) 2003-12-30 2017-07-18 Icu Medical, Inc. Medical valve connector
US9933094B2 (en) 2011-09-09 2018-04-03 Icu Medical, Inc. Medical connectors with fluid-resistant mating interfaces
US10046154B2 (en) 2008-12-19 2018-08-14 Icu Medical, Inc. Medical connector with closeable luer connector

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8679090B2 (en) 2008-12-19 2014-03-25 Icu Medical, Inc. Medical connector with closeable luer connector
JP6058530B2 (en) 2010-05-06 2017-01-11 アイシーユー・メディカル・インコーポレーテッド Medical connectors including sealable luer connectors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259582A1 (en) * 1986-07-25 1988-03-16 FARMITALIA CARLO ERBA S.r.l. Device for firmly locking a syringe in a coupling body
US5224939A (en) * 1992-05-22 1993-07-06 Scimed Life Systems, Inc. Self locking guide catheter
EP0738520A1 (en) * 1995-04-21 1996-10-23 C.R. Bard, Inc. Interlocking catheter assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259582A1 (en) * 1986-07-25 1988-03-16 FARMITALIA CARLO ERBA S.r.l. Device for firmly locking a syringe in a coupling body
US5224939A (en) * 1992-05-22 1993-07-06 Scimed Life Systems, Inc. Self locking guide catheter
EP0738520A1 (en) * 1995-04-21 1996-10-23 C.R. Bard, Inc. Interlocking catheter assembly

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004105842A1 (en) 2003-05-27 2004-12-09 Nmt Group Plc Syringes with restrictor
US9707346B2 (en) 2003-12-30 2017-07-18 Icu Medical, Inc. Medical valve connector
US11266785B2 (en) 2003-12-30 2022-03-08 Icu Medical, Inc. Medical connector with internal valve member movable within male projection
US10105492B2 (en) 2003-12-30 2018-10-23 Icu Medical, Inc. Medical connector with internal valve member movable within male luer projection
WO2006049708A1 (en) * 2004-10-29 2006-05-11 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
US7320722B2 (en) 2004-10-29 2008-01-22 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
US8079555B2 (en) 2004-11-12 2011-12-20 Bsh Home Appliances Corporation Apparatus for setting the spacing of a free standing range from a floor
US7866614B2 (en) 2004-11-12 2011-01-11 Bsh Home Appliances Corporation Apparatus for setting the spacing of a free standing range from a floor
US9636492B2 (en) 2005-07-06 2017-05-02 Icu Medical, Inc. Medical connector with translating rigid internal valve member and narrowed passage
US8777908B2 (en) 2005-07-06 2014-07-15 Icu Medical, Inc. Medical connector with closeable male luer
US10842982B2 (en) 2005-07-06 2020-11-24 Icu Medical, Inc. Medical connector
US7815614B2 (en) 2005-07-06 2010-10-19 Icu Medical, Inc. Medical connector with closeable male luer
US8211069B2 (en) 2005-07-06 2012-07-03 Icu Medical, Inc. Medical connector with closeable male luer
US8262628B2 (en) 2005-07-06 2012-09-11 Icu Medical, Inc. Medical connector with closeable male luer
US7803139B2 (en) 2005-07-06 2010-09-28 Icu Medical, Inc. Medical connector with closeable male luer
US9974939B2 (en) 2005-07-06 2018-05-22 Icu Medical, Inc. Medical connector
US9974940B2 (en) 2005-07-06 2018-05-22 Icu Medical, Inc. Medical connector
US9724504B2 (en) 2005-07-06 2017-08-08 Icu Medical, Inc. Medical connector
US8777909B2 (en) 2005-07-06 2014-07-15 Icu Medical, Inc. Medical connector with closeable male luer
US7803140B2 (en) 2005-07-06 2010-09-28 Icu Medical, Inc. Medical connector with closeable male luer
JP2014208283A (en) * 2007-05-16 2014-11-06 アイシーユー・メディカル・インコーポレーテッド Medical connector with closeable male luer
US11786715B2 (en) 2007-05-16 2023-10-17 Icu Medical, Inc. Medical connector
US7998134B2 (en) 2007-05-16 2011-08-16 Icu Medical, Inc. Medical connector
US10398887B2 (en) 2007-05-16 2019-09-03 Icu Medical, Inc. Medical connector
WO2008144447A3 (en) * 2007-05-16 2009-02-26 Icu Medical Inc Medical connector with closeable male luer
US11478624B2 (en) 2008-12-19 2022-10-25 Icu Medical, Inc. Medical connector with closeable luer connector
US10046154B2 (en) 2008-12-19 2018-08-14 Icu Medical, Inc. Medical connector with closeable luer connector
US10716928B2 (en) 2008-12-19 2020-07-21 Icu Medical, Inc. Medical connector with closeable luer connector
WO2011086181A1 (en) * 2010-01-18 2011-07-21 Neolix Sas Dentistry instruments including an inseparable assembly of two components, one male and the other female, and corresponding technique for assembling the two male/female components
FR2955244A1 (en) * 2010-01-18 2011-07-22 Neolix ODONTOLOGY INSTRUMENT COMPRISING AN UNEMPLOYABLE ASSEMBLY OF TWO COMPONENTS, ONE MALE AND THE OTHER FEMALE, AND TECHNIQUE OF ASSEMBLIES OF TWO COMPONENTS MALE / FEMALE CORRESPONDING
EP2670459A4 (en) * 2011-01-31 2014-07-30 Shl Group Ab Coupling arrangement
CN103458943A (en) * 2011-01-31 2013-12-18 Shl集团有限责任公司 Coupling arrangement
EP2670459A1 (en) * 2011-01-31 2013-12-11 SHL Group AB Coupling arrangement
US20130313823A1 (en) * 2011-01-31 2013-11-28 Shl Group Ab Coupling Arrangement
US9700709B2 (en) * 2011-01-31 2017-07-11 Shl Group Ab Coupling arrangement
US10156306B2 (en) 2011-09-09 2018-12-18 Icu Medical, Inc. Axially engaging medical connector system with fluid-resistant mating interfaces
US10697570B2 (en) 2011-09-09 2020-06-30 Icu Medical, Inc. Axially engaging medical connector system with diminished fluid remnants
US9933094B2 (en) 2011-09-09 2018-04-03 Icu Medical, Inc. Medical connectors with fluid-resistant mating interfaces
USD1042817S1 (en) 2011-09-09 2024-09-17 Icu Medical, Inc. Medical connector
US11808389B2 (en) 2011-09-09 2023-11-07 Icu Medical, Inc. Medical connectors with luer-incompatible connection portions
US11168818B2 (en) 2011-09-09 2021-11-09 Icu Medical, Inc. Axially engaging medical connector system that inhibits fluid penetration between mating surfaces
US10098816B2 (en) 2013-05-16 2018-10-16 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating micro-threads
WO2014186701A3 (en) * 2013-05-16 2015-01-15 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating micro-threads
CN105407960A (en) * 2013-05-16 2016-03-16 贝克顿迪金森有限公司 Mechanical friction enhancement for threaded connection incorporating opposing barb
CN105358210A (en) * 2013-05-16 2016-02-24 贝克顿迪金森有限公司 Mechanical friction enhancement for threaded connection incorporating crushable ribs
CN105339037A (en) * 2013-05-16 2016-02-17 贝克顿迪金森有限公司 Mechanical friction enhancement for threaded connection incorporating micro-threads
EP3581238A1 (en) * 2013-05-16 2019-12-18 Becton Dickinson and Company Limited Mechanical friction enhancement for threaded connection incorporating micro-threads
US10518077B2 (en) 2013-05-16 2019-12-31 Becton Dickinson and Company Limited Mechanical friction enhancement for threaded connection incorporating crushable ribs
JP2016518225A (en) * 2013-05-16 2016-06-23 ベクトン ディキンソン アンド カンパニー リミテッド Mechanical friction enhancement for screw connection incorporating microthreads
WO2014186685A3 (en) * 2013-05-16 2015-01-29 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating opposing barb
US9895290B2 (en) 2013-05-16 2018-02-20 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating opposing barb
US10898412B2 (en) 2013-05-16 2021-01-26 Becton Dickinson and Company, Ltd. Mechanical friction enhancement for threaded connection incorporating micro-threads
JP2016520388A (en) * 2013-05-16 2016-07-14 ベクトン ディキンソン アンド カンパニー リミテッド Enhanced mechanical friction for screw connections incorporating crushable ribs
EP3909638A1 (en) * 2013-05-16 2021-11-17 Becton Dickinson and Company Limited Mechanical friction enhancement for threaded connection incorporating crushable ribs
WO2014186707A3 (en) * 2013-05-16 2015-01-08 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating crushable ribs
WO2014186701A2 (en) * 2013-05-16 2014-11-20 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating micro-threads
US11701508B2 (en) 2013-05-16 2023-07-18 Becton Dickinson and Company Limited Mechanical friction enhancement for threaded connection incorporating crushable ribs
WO2014186685A2 (en) * 2013-05-16 2014-11-20 Becton Dickinson and Company Ltd. Mechanical friction enhancement for threaded connection incorporating opposing barb
JP2016522034A (en) * 2013-05-16 2016-07-28 ベクトン ディキンソン アンド カンパニー リミテッド Mechanical friction-enhancing structure for screw connection with opposing barbs
US9968771B2 (en) 2013-05-16 2018-05-15 Becton Dickinson and Company Limited Mechanical friction enhancement for threaded connection incorporating crushable ribs

Also Published As

Publication number Publication date
GB9918705D0 (en) 1999-10-13
GB2353078B (en) 2003-03-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060810