GB2255282A - Advanced fine needle for tissue aspiration. - Google Patents

Advanced fine needle for tissue aspiration. Download PDF

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Publication number
GB2255282A
GB2255282A GB9109294A GB9109294A GB2255282A GB 2255282 A GB2255282 A GB 2255282A GB 9109294 A GB9109294 A GB 9109294A GB 9109294 A GB9109294 A GB 9109294A GB 2255282 A GB2255282 A GB 2255282A
Authority
GB
United Kingdom
Prior art keywords
needle
mm
channels
advanced
tissue
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Withdrawn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
GB9109294A
Other versions
GB9109294D0 (en
Inventor
Salam Zahroon Al-Sam
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.)
AL SAM SALAM ZAHROON
Original Assignee
AL SAM SALAM ZAHROON
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 AL SAM SALAM ZAHROON filed Critical AL SAM SALAM ZAHROON
Priority to GB9109294A priority Critical patent/GB2255282A/en
Publication of GB9109294D0 publication Critical patent/GB9109294D0/en
Publication of GB2255282A publication Critical patent/GB2255282A/en
Application status is Withdrawn legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02Instruments for taking cell samples or for biopsy
    • A61B10/0233Pointed or sharp biopsy instruments
    • A61B10/0283Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe

Abstract

An advanced fine needle, gauge 21 - 22, 35mm - 75mm long with 4 additional channels, to expand the capacity of tissue aspiration for diagnosis and cancer screening, is shown in figure 1. The four additional intercalated channels are located at 2 mm, 4 mm, 6 mm, and 8 mm from the needle's tip, one of each is located on one of the four sides of the needle. The channels open through holes of the same diameter to that of the needle's central canal. The edges of the holes are smooth and non injurious to the adjacent tissue. The new channels are directed at 45 DEG of the longitudinal axis measured from the distal end of the needle. <IMAGE>

Description

ADVANCED FINE NEEDLE FOR TISSUE ASPIRATION This application relates to an Advanced Fine Needle for Tissue Aspiration.

Tissue aspiration for diagnostic purposes using a syringe and a needle has been in use for over 60 years around the world. At the present time, needle aspiration plays an important role in the breast cancer screening programme in England and elsewhere.

Unfortunately, one of the continuing problems remains the high rate of failure in obtaining tissue for diagnosis using the conventional 21 gauge - 22 gauge disposable needles. This failure rate ranges from 15% to 50% while small samples insufficient for cytological interpretation may also add to these figures.

Methods to reduce this high failure rate will be welcomed by the patient, the surgeon, the radiologist, the cytopathologist and the Government who spend thousands of pounds every year to keep this diagnostic and cancer screening programme going In this application a new advanced needle is described which may help to reduce the tissue aspiration failure rate and may also help to obtain larger samples from tissue for diagnostic and cancer screening purposes.

According to the present invention, a 21 gauge to 22 gauge disposable needle 3Omm- 75mminkngthand0.64mmto0.75mminexteriialdiameter should be used. It is supplied with four additional intercalated channels connected to the needle's central canal and opens to the needle's outer surface, These additional channels will provide a wider surface aspiration capacity which will help to minimize missing small pathological lesions deep within the tissue.It may also help to avoid failure to obtain samples in cases of blockage of the only hole available in the conventional needle by a blood clot, fibrous tissue or a calcified materiaL A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 shows an overview of the new advanced disposable fine needle 21 gauge, 22 gauge of any acceptable length.

This is a front view with the bevelled side facing the observer.The four additional holes ( 2 - 5 ) are shown: hole 2 right side 2 mm from needle tip.

hole 3 back 4 mm from needle tip.

hole 4 left 6 mm from needle tip.

hole 5 front 8 mm from needle tip.

Figure 2 Illustrates a longitudinal cross section through the needle ( front view) to demonstrate the additional channels 2 and 4.

The central canal ( 6 ) and the angle of direction of the new channels ( 45 ). The needle's wall thickness ( 7 ) is that of standered gauge 21-22 conventional needles.

Figure 3 Illustrates a longitudinal cross section through the needle ( side view, bevelled side to the left ) to demonstrate additional channels 3 and 5.

The four new holes should be distributed within the distal 8 mm of the needle ( close to the needle's tip ) and one of each will be located on one of the four sides of the needle as shown in the accompanying diagrams ( figures 1 - 3 ).

The diameter of each hole should be the same as that of the central canal of the needle (21 gauge - 22 gauge ).

The direction of the intercalated channels should be 45 of the longitudinal axis of the needle measured from the distal end of the needle as shown in figures 2 and 3.

This is preferable to channels perpendicular to the main central canal of the needle and the purpose is to avoid side - splashing of tissue and eventual loss of the aspirated material during the process of expelling the tissue out of the needle on the slides.

The four additional channels should be intercalated to avoid weakening the distal end of the needle and to minimize the danger of snapping inside the tissue.

The rim of the new holes should be smooth ( rounded rather than sharp) to avoid injuring the adjacent tissue and to minimize the bleeding and pain.

The existing method used in aspirating tissue by the conventional needle is expected to be more traumatic to the tissue as the needle should be moved in and out of the lesion many times to aspirate the maximum amount of material. With the advanced needle, described in this application, there is no need to move the needle back and forth inside the lesion and a gentle rotation of the needle is sufficient to expose the largest surface area of the pathological lesion to the multiple aspirating channels available.

This method may reduce both internal tissue bleeding and pain experienced by the patient.

Claims (4)

1. An Advanced Disposable Fine Needle for tissue aspiration, gauge 21-22, 30 . 75 mm long, and 0.64-0.75 mm outer diameter with 4 additional intercalated channels connected to the central canal of the needle through holes on the four surfaces of the needle which are distributed within the distal 8 mm of the needle.
2. An Advanced Disposable Fine Needle for tissue aspiration as claimed in claim 1 with 4 additional smooth edged holes on the surface located on the four sides of the needle at 2 mm, 4 mm, 6 mm, and 8 mm.
3. An Advanced Disposable Fine Needle for tissue aspiration as claimed in claims 1 and 2 with four additional channels directed at 450 of the longitudinal axis from the distal end of the needle.
4. An Advanced Fine Needle for tissue aspiration substantially as described herein with reference to figures 1 - 3 of the accompanying diagrams.
GB9109294A 1991-04-30 1991-04-30 Advanced fine needle for tissue aspiration. Withdrawn GB2255282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9109294A GB2255282A (en) 1991-04-30 1991-04-30 Advanced fine needle for tissue aspiration.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9109294A GB2255282A (en) 1991-04-30 1991-04-30 Advanced fine needle for tissue aspiration.

Publications (2)

Publication Number Publication Date
GB9109294D0 GB9109294D0 (en) 1991-06-19
GB2255282A true GB2255282A (en) 1992-11-04

Family

ID=10694199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9109294A Withdrawn GB2255282A (en) 1991-04-30 1991-04-30 Advanced fine needle for tissue aspiration.

Country Status (1)

Country Link
GB (1) GB2255282A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262238A (en) * 1991-12-12 1993-06-16 Magdy Yassin Aglan Hollow needle for use in spinal anaesthesia
US5549112A (en) * 1994-03-12 1996-08-27 Cockburn; John F. Medical needle for use in ultrasound imaging and method of enhancing the visibility of such a needle to ultrasound
GB2298368A (en) * 1995-02-22 1996-09-04 John Francis Cockburn Needle with occlusion-preventing aperture
US5807304A (en) * 1995-03-09 1998-09-15 Cockburn; John F. Medical needle for use in ultrasound imaging
EP1542592A1 (en) * 2002-09-23 2005-06-22 Biopsy Sciences, Llc. Dual action aspiration biopsy needle
WO2016196913A1 (en) * 2015-06-05 2016-12-08 Boston Scientific Scimed, Inc. Biopsy needle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509880A (en) * 1969-03-13 1970-05-05 Yolan R Guttman Intravenous needle hub construction
US4411657A (en) * 1980-05-19 1983-10-25 Anibal Galindo Hypodermic needle
US4413993A (en) * 1973-07-30 1983-11-08 Guttman Yolan R Infiltration-proof intravenous needle
EP0278186A1 (en) * 1987-02-13 1988-08-17 SOFIC Société Anonyme Needle for a syringe
US4790830A (en) * 1985-04-01 1988-12-13 Hamacher Edward N Infusion needle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509880A (en) * 1969-03-13 1970-05-05 Yolan R Guttman Intravenous needle hub construction
US4413993A (en) * 1973-07-30 1983-11-08 Guttman Yolan R Infiltration-proof intravenous needle
US4411657A (en) * 1980-05-19 1983-10-25 Anibal Galindo Hypodermic needle
US4790830A (en) * 1985-04-01 1988-12-13 Hamacher Edward N Infusion needle
EP0278186A1 (en) * 1987-02-13 1988-08-17 SOFIC Société Anonyme Needle for a syringe

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262238A (en) * 1991-12-12 1993-06-16 Magdy Yassin Aglan Hollow needle for use in spinal anaesthesia
GB2262238B (en) * 1991-12-12 1995-11-22 Magdy Yassin Aglan A hollow needle for use in spinal anaesthesia
US5549112A (en) * 1994-03-12 1996-08-27 Cockburn; John F. Medical needle for use in ultrasound imaging and method of enhancing the visibility of such a needle to ultrasound
GB2298368A (en) * 1995-02-22 1996-09-04 John Francis Cockburn Needle with occlusion-preventing aperture
US5728124A (en) * 1995-02-22 1998-03-17 Cockburn; John Francis Medical needle for use in ultrasound imaging and method of enhancing the visiblity of such a needle to ultrasound
GB2298368B (en) * 1995-02-22 1999-01-20 John Francis Cockburn Medical needle assembly for use in ultrasound imaging
US5807304A (en) * 1995-03-09 1998-09-15 Cockburn; John F. Medical needle for use in ultrasound imaging
EP1542592A1 (en) * 2002-09-23 2005-06-22 Biopsy Sciences, Llc. Dual action aspiration biopsy needle
EP1542592A4 (en) * 2002-09-23 2009-06-03 Medical Device Tech Dual action aspiration biopsy needle
WO2016196913A1 (en) * 2015-06-05 2016-12-08 Boston Scientific Scimed, Inc. Biopsy needle
US10231717B2 (en) 2015-06-05 2019-03-19 Boston Scientific Scimed, Inc. Biopsy needle

Also Published As

Publication number Publication date
GB9109294D0 (en) 1991-06-19

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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)