GB2330078A - Bolt for facilitating catheter insertion - Google Patents

Bolt for facilitating catheter insertion Download PDF

Info

Publication number
GB2330078A
GB2330078A GB9721328A GB9721328A GB2330078A GB 2330078 A GB2330078 A GB 2330078A GB 9721328 A GB9721328 A GB 9721328A GB 9721328 A GB9721328 A GB 9721328A GB 2330078 A GB2330078 A GB 2330078A
Authority
GB
United Kingdom
Prior art keywords
bolt
threaded
brain
channel
catheter
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Withdrawn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
GB9721328A
Other versions
GB9721328D0 (en
Inventor
David Brian Ashton Hutchinson
Original Assignee
David Brian Ashton Hutchinson
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 David Brian Ashton Hutchinson filed Critical David Brian Ashton Hutchinson
Priority to GB9721328A priority Critical patent/GB2330078A/en
Publication of GB9721328D0 publication Critical patent/GB9721328D0/en
Publication of GB2330078A publication Critical patent/GB2330078A/en
Withdrawn legal-status Critical Current

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
    • A61M27/00Drainage appliances for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/006Cerebrospinal drainage; Accessories therefor, e.g. valves
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0113Mechanical advancing means, e.g. catheter dispensers
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/0213Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body
    • A61M2025/0233Holding devices, e.g. on the body where the catheter is attached by means specifically adapted to a part of the human body specifically adapted for attaching to a body wall by means which are on both sides of the wall, e.g. for attaching to an abdominal wall
    • 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
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M2025/028Holding devices, e.g. on the body having a mainly rigid support structure

Abstract

A bolt which can be screwed into a skull and through which catheters can pass into a brain consists of a body section 1 and a threaded section 6 which screws into a skull. Three channels 2 tapering in towards each other pass through the body section and connect with narrow channels 5 in the threaded section. The channels in the body section have a threaded top section so that a gripping device can be screwed in and hold a catheter in place. The device is preferably made of a poly ether ether ketone and enables catheters to be conveniently inserted and held in place in a brain to monitor parameters of the brain such as pressure, pH, chemical compounds etc.

Description

Bolt The present invention relates to a device for monitoring the brain, more particularly it relates to a device which facilitates the insertion of catheters and the like into the brain.

When a person suffers brain damage, such as from a head injury or haemorrhage etc. it is expedient to monitor the brain activity so that harmful and potentially harmful events can be detected before permanent damage to the brain can occur. In order to do this a screw device, which has a channel formed within it, is inserted through an incision in the scalp and attached to the skull and a catheter or other probe or measuring device, such as a pressure monitor inserted through the channel into the brain. In this way parameters such as pressure can be monitored. It is known to have bolts with more than one channel in line formed in it and more than one catheter inserted through it. Such bolts are made of titanium for its inertness and strength.

I have now devised an improved bolt for inserting probes into a brain.

According to the invention there is provided a bolt for inserting catheters, probes and the like into a brain, which bolt comprises a substantially circular body section connected to a threaded section, which threaded section is adapted to screw into a tapped hole in a skull, there being a plurality of tapped channels in the body section each of which tapped channel connects to a narrower channel passing through the screw section through which narrower channel is able to pass a catheter, so that, when the bolt is screwed into a tapped hole in a skull, a catheter can be inserted though the tapped channel in the body section and through the channel in the threaded section into the brain.

The tapped section of channel in the body section of the bolt enables a corresponding threaded gripping device to be screwed into it through which gripping device a catheter can pass and can be gripped and held it firmly in place.

The term catheter as used in this specification includes probes, fibres, fibre type measuring devices which incorporate transducers, detectors etc., monitors, chemical detectors etc.

Preferably there are at least three channels in the bolt, which are formed in three planes or dimensions so that catheters passed through them do not interfere with each other. The channels are preferably formed at an angle to each other so that they are furthest apart at the outside of the body section and taper inward towards each other so that they are substantially adjacent where they pass into the brain.

The bolt can be made of any substantially inert rigid material of sufficient strength and it has been found that poly aryl ether ketones and poly ether ether ketones, such as those sold under the trade name PEEK are particularly suitable. Bolts made of this material are strong, rigid and biologically inert and can be sterilised in an autoclave at high temperature or by chemical means and retain their strength and rigidity in use and after sterilisation. These bolts are able to be formed with the degree of accuracy required. Such material overcomes the difficulties of working with metals such as titanium with their well known difficulties of working and because it is non-metallic it has minimal electrical interference with any electrical or electronic scanning or monitoring device inserted into the brain, or computer tomography, magnetic resonance or positron emission tomography external scan.

The bolts of the present invention, because of their relative short length compared with existing devices, enable catheters to be easily inserted to a variety of depths in the brain and held in place. They enable different types of catheters to be inserted at the same time to enable a variety of parameters to be measured simultaneously.

Typical devices which can be inserted into the brain using the device of the present invention include intracranial pressure monitor to measure intracranial pressure, multiparameter sensor to measure brain oxygen, carbon dioxide, pH, temperature etc., microdialysis catheter to measure metabolites, neurotransmitters etc.

The device of the present invention can also enable drugs or other chemicals to be administered to specific locations in the brain and so can be used for treatment as well as diagnosis.

The invention is described in the accompanying drawings in which Fig. 1 is a plan view of the device from the top Fig. 2 is a side view of the device showing its construction Fig. 3 is a plan view of the device from below The bolt comprises a body section (1) formed from PEEK in which are formed channels (2a), (2b) and (2c), these channels have threaded sections (3a), (3b) and (3c).

At the lower ends of these channels are narrower channels (5a), (5b) and (5c) which pass through section (4) of the device which has a threaded section (6) as shown.

In use a tapped hole is drilled in a patient's skull and screw section (6) is screwed in.

Catheters can then be passed through channels (2) and (5) into the patient's brain.

The catheter can be held in place by a gripping device (not shown) which can screw into (3a), (3b) and (3c) to grip the catheter. Thus the catheters can be inserted into the brain and held in place and will allow the required monitoring, measuring or other treatments.

Claims (5)

  1. Claims 1. A bolt for inserting catheters and the like into a brain, which bolt comprises a substantially circular body section connected to a threaded section, which threaded section is adapted to screw into a tapped hole in a skull, there being a plurality of tapped channels in the body section each of which tapped channel connects to a narrower channel passing through the screw section through which narrower channel is able to pass a catheter, so that, when the bolt is screwed into a tapped hole in a skull a catheter can be inserted though the tapped channel in the body section and through the channel in the threaded section into the brain.
  2. 2. A bolt as claimed in claim 1 which is made from a poly ether ether ketone.
  3. 3. A device as claimed in claim 1 or 2 in which there are three channels positioned in three dimensions and which taper inwards towards each other in the direction of the threaded section of the device.
  4. 4. A device as claimed in any one of claims 1 to 3 in which there is a threaded gripping device screwed into the threaded section of the said channel which gripping device is able to grip and hold in place a catheter passing therethrough.
  5. 5. A bolt as herein before described with reference to the drawings.
GB9721328A 1997-10-08 1997-10-08 Bolt for facilitating catheter insertion Withdrawn GB2330078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9721328A GB2330078A (en) 1997-10-08 1997-10-08 Bolt for facilitating catheter insertion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9721328A GB2330078A (en) 1997-10-08 1997-10-08 Bolt for facilitating catheter insertion
GB9822006A GB2330080B (en) 1997-10-08 1998-10-08 Bolt facilitating insertion of instruments into a brain.

Publications (2)

Publication Number Publication Date
GB9721328D0 GB9721328D0 (en) 1997-12-10
GB2330078A true GB2330078A (en) 1999-04-14

Family

ID=10820229

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9721328A Withdrawn GB2330078A (en) 1997-10-08 1997-10-08 Bolt for facilitating catheter insertion
GB9822006A Expired - Lifetime GB2330080B (en) 1997-10-08 1998-10-08 Bolt facilitating insertion of instruments into a brain.

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9822006A Expired - Lifetime GB2330080B (en) 1997-10-08 1998-10-08 Bolt facilitating insertion of instruments into a brain.

Country Status (1)

Country Link
GB (2) GB2330078A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2342583A (en) * 1998-10-02 2000-04-19 Diametrics Medical Limited A cranial bolt
GB2355665A (en) * 1999-11-01 2001-05-02 David Brian Ashton Hutchinson Cranial bolt
GB2357700A (en) * 1999-12-01 2001-07-04 Steven Gill Neurosurgical guide device
US6905474B2 (en) 2000-09-11 2005-06-14 Csf Dynamic A/S Fluid shunt system and a method for the treatment of hydrocephalus
EP1633233A2 (en) * 2003-05-30 2006-03-15 Innerspace Medical, Inc. System and method for intracranial access and monitoring
US7118548B2 (en) 1996-09-18 2006-10-10 Sinu Shunt A/S Device for the treatment of hydrocephalus
US7604658B2 (en) 2004-05-04 2009-10-20 Codman & Shurtleff, Inc. Multiple lumen sensor attachment
EP2515750A2 (en) * 2009-12-21 2012-10-31 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US8721643B2 (en) 2005-08-23 2014-05-13 Smith & Nephew, Inc. Telemetric orthopaedic implant
US9452241B2 (en) 2006-08-18 2016-09-27 Renishaw (Ireland) Limited Neurosurgical instruments
US9492210B2 (en) 2008-10-15 2016-11-15 Smith & Nephew, Inc. Composite internal fixators
US9849216B2 (en) 2006-03-03 2017-12-26 Smith & Nephew, Inc. Systems and methods for delivering a medicament
US10695001B2 (en) 2015-12-15 2020-06-30 Irras Usa, Inc. System and method for intracranial access and monitoring
US10751513B2 (en) 2012-07-24 2020-08-25 Renishaw Plc Neurosurgical apparatus and methods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7660621B2 (en) 2000-04-07 2010-02-09 Medtronic, Inc. Medical device introducer
US7704260B2 (en) 2002-09-17 2010-04-27 Medtronic, Inc. Low profile instrument immobilizer
WO2005079903A2 (en) 2004-02-13 2005-09-01 Medtronic, Inc. Methods and apparatus for securing a therapy delivery device within a burr hole

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629451A (en) * 1985-09-23 1986-12-16 Victory Engineering Corp. Stereotaxic array plug
US4903707A (en) * 1988-04-22 1990-02-27 Camino Laboratories Ventricular catheter assembly

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042870A1 (en) * 1996-05-14 1997-11-20 Camino Neurocare, Inc. Expandable parenchymal bolt

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629451A (en) * 1985-09-23 1986-12-16 Victory Engineering Corp. Stereotaxic array plug
US4903707A (en) * 1988-04-22 1990-02-27 Camino Laboratories Ventricular catheter assembly

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7118548B2 (en) 1996-09-18 2006-10-10 Sinu Shunt A/S Device for the treatment of hydrocephalus
GB2342583A (en) * 1998-10-02 2000-04-19 Diametrics Medical Limited A cranial bolt
GB2342583B (en) * 1998-10-02 2003-02-26 Diametrics Medical Ltd Cranial bolt
GB2355665A (en) * 1999-11-01 2001-05-02 David Brian Ashton Hutchinson Cranial bolt
GB2357700A (en) * 1999-12-01 2001-07-04 Steven Gill Neurosurgical guide device
GB2357700B (en) * 1999-12-01 2004-02-25 Steven Gill A neurosurgical guide device
US6905474B2 (en) 2000-09-11 2005-06-14 Csf Dynamic A/S Fluid shunt system and a method for the treatment of hydrocephalus
EP1633233A2 (en) * 2003-05-30 2006-03-15 Innerspace Medical, Inc. System and method for intracranial access and monitoring
US9232921B2 (en) 2003-05-30 2016-01-12 Innerspace Medical, Inc. System and method for intracranial access and monitoring
EP1633233A4 (en) * 2003-05-30 2010-07-07 Innerspace Medical Inc System and method for intracranial access and monitoring
US7604658B2 (en) 2004-05-04 2009-10-20 Codman & Shurtleff, Inc. Multiple lumen sensor attachment
US8721643B2 (en) 2005-08-23 2014-05-13 Smith & Nephew, Inc. Telemetric orthopaedic implant
US9849216B2 (en) 2006-03-03 2017-12-26 Smith & Nephew, Inc. Systems and methods for delivering a medicament
US9452241B2 (en) 2006-08-18 2016-09-27 Renishaw (Ireland) Limited Neurosurgical instruments
US10357292B2 (en) 2008-10-15 2019-07-23 Smith & Nephew, Inc. Composite internal fixators
US9492210B2 (en) 2008-10-15 2016-11-15 Smith & Nephew, Inc. Composite internal fixators
EP2515750A4 (en) * 2009-12-21 2013-07-10 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US9179875B2 (en) 2009-12-21 2015-11-10 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US9642552B2 (en) 2009-12-21 2017-05-09 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US9820668B2 (en) 2009-12-21 2017-11-21 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
JP2013514870A (en) * 2009-12-21 2013-05-02 フア,シャーウィン Insertion and use of medical devices through non-orthogonal and orthogonal pathways within the skull
EP2515750A2 (en) * 2009-12-21 2012-10-31 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US10736533B2 (en) 2009-12-21 2020-08-11 Sherwin Hua Insertion of medical devices through non-orthogonal and orthogonal trajectories within the cranium and methods of using
US10751513B2 (en) 2012-07-24 2020-08-25 Renishaw Plc Neurosurgical apparatus and methods
US10695001B2 (en) 2015-12-15 2020-06-30 Irras Usa, Inc. System and method for intracranial access and monitoring

Also Published As

Publication number Publication date
GB9822006D0 (en) 1998-12-02
GB2330080A (en) 1999-04-14
GB9721328D0 (en) 1997-12-10
GB2330080B (en) 2001-09-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)