GB2130890A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Aspiration needle
Assignee: Smiths Healthcare Ltd
•
Filing: 1983-11-30
•
Granted: —
•
Expires: 2003-11-30
Abstract
Abstract Aspiration needles for bone- marrow aspiration comprising a hollow needle 20 with perforations 38 at the distal end enable a larger and more representative sample of bone- marrow aspirate to be obtained thus reducing the sampling error inherent in methods using a needle with a single opening at the end. The needle includes a transverse-bar, finger-grip handle 24 for ease in passing the needle into bone, especially the compact bone of the ilium, in order to avoid sternal puncture, and to reduce sampling error further by sampling this thick marrow-containing region. The needle forms part of an assembly comprising a stylet removably located within the hollow needle, and a palm handle 26. <IMAGE>
Inventors
- 👤 Abul Bashar Mohammed Anw Islam
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 22:09
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B17/00; A61B17/32; A61B2010/0258; A61B2217/00; A61B2217/002; A61B2217/005; A61M; A61M1/00; A61M1/84
Claims Analysis
Total Claims: 65
Claim 1
Independent Claim
66 words
An aspiration needle comprising
an elongate hollow needle having a proximal
end, a distal end, a longitudinal axis and a
substantially cylindrical side wall, and
a handle provided at or toward the said
proximal end and being substantially in the
form of a transverse bar, with
a plurality of perforations provided in the said
side wall at or in the region of the said distal
end.
Claim 2
Dependent Claim
66 words
An aspiration needle comprising
an elongate hollow needle having a proximal
end, a distal end, a longitudinal axis and a
substantially cylindrical side wall, and
a handle provided at or toward the said
proximal end and being substantially in the
form of a transverse bar, with
a plurality of perforations provided in the said
side wall at or in the region of the said distal
end.
Claim 3
Dependent Claim
15 words
An aspiration needle as claimed in claim 1, wherein the said distal end is open.
Claim 4
Dependent Claim
19 words
An aspiration needle as claimed in claim 2, wherein the said distal end is provided with a cutting edge.
Claim 5
Dependent Claim
21 words
An aspiration needle as claimed in any one of claims 1 to 3, wherein the said distal end is externally bevelled.
Claim 6
Dependent Claim
26 words
An aspiration needle as claimed in any one of claims 1 to 4, wherein the said distal end is provided with a plurality of external flutes.
Claim 7
Dependent Claim
38 words
An aspiration needle as claimed in any one of claims 1 to 5, which comprises, at or in the region of the said proximal end, means for attachment of a device for the application of a reduced pressure.
Claim 8
Dependent Claim
37 words
An aspiration needle as claimed in any one of claims 1 to 5, wherein the said proximal end is open and is provided with means for attachment of a device for the application of a reduced pressure.
Claim 9
Dependent Claim
30 words
An aspiration needle as claimed in any one of claims 1 to 5, wherein the said proximal end is open and is provided with means for attachment of a syringe.
Claim 10
Dependent Claim
25 words
An aspiration needle as claimed in any one of claims 1 to 8, wherein the number of the said perforations is from 7 to 20.
Claim 11
Dependent Claim
26 words
An aspiration needle as claimed in any one of claims 1 to 8, wherein the number of the said perforations is from 7 to 1 5.
Claim 12
Dependent Claim
26 words
An aspiration needle as claimed in any one of claims 1 to 8, wherein the number of the said perforations is from 10 to 1 5.
Claim 13
Dependent Claim
33 words
An aspiration needle as claimed in any one of claims 1 to 11, wherein the elongate hollow needle is of uniform internal circular cross-section from the said distal end to the said handle.
Claim 14
Dependent Claim
26 words
An aspiration needle as claimed in claim
12, wherein the elongate hollow needle has an internal diameter within the range of from 1.5 to 4 mm.
Claim 15
Dependent Claim
25 words
An aspiration needle as claimed in claim
12, wherein the elongate hollow needle has-an internal diameter within the range of from 1.5 to
3 mm.
Claim 16
Dependent Claim
43 words
An aspiration needle as claimed in any one
of claims 1 to 14, wherein the elongate hollow
needle is of uniform external circular cross
section between the said distal end (excluding
any bevel and/or fluting at the distal end) and the said handle.
Claim 17
Dependent Claim
26 words
An aspiration needle as claimed in claim
15, wherein the elongate hollow needle has an external diameter within the range of from 2 to
5 mm.
Claim 18
Dependent Claim
26 words
An aspiration needle as claimed in claim
15, wherein the elongate hollow needle has an external diameter within the range of from 2 to 4 mm.
Claim 19
Dependent Claim
37 words
An aspiration needle as claimed in any one of claims 1 to 17, wherein the said handle is in the form of a transverse bar extending across and substantially at right angles to the said longitudinal axis.
Claim 20
Dependent Claim
32 words
An aspiration needle as claimed in any one of claims 1 to 18, wherein the said handle contains one or more finger-receiving recesses in a side facing towards the said distal end.
Claim 21
Dependent Claim
27 words
An aspiration needle as claimed in claim 19, wherein at least one of the said fingerreceiving recesses is present on each side of the said longitudinal axis.
Claim 22
Dependent Claim
155 words
An aspiration needle assembly having a proximal end, a distal end and a longitudinal axis, and comprising
an elongate hollow needle having an open
proximal end and a substantially cylindrical
side wall with a plurality of perforations
provided in the said side wall at or in the
region of the said distal end,
an elongate stylet capable of being received
within the said hollow needle through its
open proximal end,
a first handle provided at or toward the
proximal end of the assembly and being
substantially in the form of a transverse bar,
and
a second handle provided at the proximal end
of the assembly and being shaped for
reception in the palm of a hand, the assembly being capable of being inserted into tissue as a unit, and being such that the stylet can be withdrawn from the hollow needle while the latter remains inserted into the tissue to enable aspiration to be effected.
Claim 23
Dependent Claim
155 words
An aspiration needle assembly having a proximal end, a distal end and a longitudinal axis, and comprising
an elongate hollow needle having an open
proximal end and a substantially cylindrical
side wall with a plurality of perforations
provided in the said side wall at or in the
region of the said distal end,
an elongate stylet capable of being received
within the said hollow needle through its
open proximal end,
a first handle provided at or toward the
proximal end of the assembly and being
substantially in the form of a transverse bar,
and
a second handle provided at the proximal end
of the assembly and being shaped for
reception in the palm of a hand, the assembly being capable of being inserted into tissue as a unit, and being such that the stylet can be withdrawn from the hollow needle while the latter remains inserted into the tissue to enable aspiration to be effected.
Claim 24
Dependent Claim
33 words
An aspiration needle assembly as claimed in claim 21, wherein the assembly is such that the stylet can be re-inserted into the hollow needle prior to withdrawal of the latter from the tissue.
Claim 25
Dependent Claim
51 words
An aspiration needle assembly as claimed in claim 21 or claim 22, wherein the hollow needle has an open distal end and wherein the stylet has a pointed distal end which projects through the open distal end of the hollow needle when the stylet is fully received within the hollow needle.
Claim 26
Dependent Claim
18 words
An aspiration needle assembly as claimed in claim 23, wherein the pointed end of the stylet is pyramidal.
Claim 27
Dependent Claim
34 words
An aspiration needle assembly as claimed in any one of claims 21 to 24, wherein the distal end of the hollow needle is externally bevelled and/or is provided with a plurality of external flutes.
Claim 28
Dependent Claim
38 words
An aspiration needle assembly as claimed in any one of claims 21 to 25, wherein the proximal end of the hollow needle is provided with means for attachment of a device for the application of a reduced pressure.
Claim 29
Dependent Claim
37 words
An aspiration needle assembly as claimed in claim 26, wherein the said means is so arranged that the said device can be attached at the open proximal end of the hollow needle when the stylet is absent.
Claim 30
Dependent Claim
23 words
An aspiration needle assembly as claimed in claim 26 or claim 27, wherein the said means is means for attachment of a syringe.
Claim 31
Dependent Claim
26 words
An aspiration needle assembly as claimed in any one of claims 21 to 28, wherein the number of the said perforations is from 7 to 20.
Claim 32
Dependent Claim
26 words
An aspiration needle assembly as claimed in any one of claims 21 to 28, wherein the number of the said perforations is from 7 to 15.
Claim 33
Dependent Claim
26 words
An aspiration needle assembly as claimed in any one of claims 21 to 28, wherein the number of the said perforations is from 10 to 15.
Claim 34
Dependent Claim
39 words
An aspiration needle assembly as claimed in any one of claims 21 to 31, wherein the said first handle is in the form of a transverse bar extending across and substantially at right angles to the said longitudinal axis.
Claim 35
Dependent Claim
48 words
An aspiration needle assembly as claimed in any one of claims 21 to 32, wherein the said first handle is provided at or in the region of the proximal end of the hollow needle and the said second handle is provided at the proximal end of the stylet.
Claim 36
Dependent Claim
43 words
An aspiration needle assembly as claimed in any one of claims 21 to 33, wherein the proximal end of the hollow needle and the proximal end of the stylet are provided with mutual engagement means to secure the stylet with the hollow needle.
Claim 37
Dependent Claim
31 words
An aspiration needle assembly as claimed in claims 33 and 34, wherein the part of the said mutual engagement means provided on the stylet is provided on the said second handle.
Claim 38
Dependent Claim
36 words
An aspiration needle assembly as claimed in claims 27 and 35, wherein the said means for attachment of a reduced-pressu re-application device constitutes the part of the said mutual engagement means provided on the hollow needle.
Claim 39
Dependent Claim
40 words
An aspiration needle assembly as claimed in claims 35 and 36, wherein the said second handle provided at the proximal end of the stylet is provided with means for engagement with the said means for attachment of a reduced-pressureapplication device.
Claim 40
Dependent Claim
21 words
An aspiration needle assembly as claimed in claim 37, wherein the said attachment means constitutes means for attachment of a syringe.
Claim 41
Dependent Claim
60 words
An aspiration needle assembly as claimed in any one of claims 21 to 38, wherein the hollow needle is of uniform internal circular cross-section throughout its length, optionally excepting its proximal end, and the stylet is of uniform external cross-section throughout its length (excluding any pointing at its distal end) such that the stylet fits snugly within the hollow needle.
Claim 42
Dependent Claim
26 words
An aspiration needle assembly as claimed in claim 39, wherein the hollow needle has an internal diameter within the range of from 1.5 to 4 mm.
Claim 43
Dependent Claim
26 words
An aspiration needle assembly as claimed in claim 39, wherein the hollow needle has an internal diameter within the range of from 1.5 to 3 mm.
Claim 44
Dependent Claim
42 words
An aspiration needle assembly as claimed in any one of claims 21 to 41, wherein the hollow needle is of uniform external cross-section throughout its length, except for any bevel and/or fluting at its distal end and optionally excepting its proximal end.
Claim 45
Dependent Claim
26 words
An aspiration needle assembly as claimed in claim 42, wherein the hollow needle has an external diameter within the range of from 2 to 5 mm.
Claim 46
Dependent Claim
26 words
An aspiration needle assembly as claimed in claim 42, wherein the hollow needle has an external diameter within the range of from 2 to 4 mm.
Claim 47
Dependent Claim
34 words
An aspiration needle assembly as claimed in any one of claims 21 to 44, wherein the said first handle contains one or more finger-receiving recesses in a side facing towards the said distal end.
Claim 48
Dependent Claim
28 words
An aspiration needle assembly as claimed in claim 45, wherein at least one of the said finger-receiving recesses is present on each side of the said longitudinal axis.
Claim 49
Dependent Claim
22 words
An aspiration needle assembly as claimed in any one of claims 21 to 46, wherein the said second handle is substantially dome-shaped.
Claim 50
Dependent Claim
17 words
An aspiration needle assembly as claimed in claim 47, wherein the said second handle is substantially hemispherical.
Claim 51
Dependent Claim
27 words
An aspiration needle as claimed in claim 1 substantially as described herein with reference to, and as shown in, Figs. 2 and 5 of the accompanying drawings.
Claim 52
Dependent Claim
26 words
An aspiration needle assembly as claimed in claim 21 substantially as described herein with reference to, and as shown in, Fig. 1 of the accompanying drawings.
Claim 53
Dependent Claim
28 words
An aspiration needle assembly as claimed in claim 21 substantially as described herein with reference to, and as shown in, Figs. 1 to 5 of the accompanying drawings.
Claim 54
Dependent Claim
50 words
An aspiration method, which comprises passing an aspiration needle provided with a plurality of perforations in a side wall of the needle into tissue to be aspirated, withdrawing an aspirate sample from the tissue into the needle through said perforations, retaining the sample, and removing the needle from the tissue.
Claim 55
Dependent Claim
50 words
An aspiration method, which comprises passing an aspiration needle provided with a plurality of perforations in a side wall of the needle into tissue to be aspirated, withdrawing an aspirate sample from the tissue into the needle through said perforations, retaining the sample, and removing the needle from the tissue.
Claim 56
Dependent Claim
43 words
An aspiration method, which comprises passing an aspiration needle as claimed in any one of claims 1 to 20 and 49 into tissue to be aspirated, withdrawing an aspirate sample from the tissue into the needle, and removing the needle from the tissue.
Claim 57
Dependent Claim
17 words
A method as claimed in claim 52 or claim 53, wherein the said tissue comprises bone marrow.
Claim 58
Independent Claim
110 words
A method of aspirating bone marrow using an aspiration needle assembly as claimed in any one of claims 21 to 48, 50 and 51, which comprises passing the distal end of the assembly, with the stylet located within the hollow needle, through the soft tissue and bony cortex of a patient until the spongy bone is reached, advancing the assembly to the desired depth within the spongy bone, withdrawing the stylet from the hollow needle, applying a reduced pressure to the hollow needle to withdraw an aspirate sample from the bone marrow through the hollow needle, replacing the stylet within the hollow needle, and withdrawing the assembly from the patient.
Claim 59
Dependent Claim
13 words
A method as claimed in claim 55, carried out substantially as described herein.
Claim 60
Dependent Claim
23 words
An aspirate sample that has been obtained using an aspiration needle as claimed in any one of claims 1 to 20 and 49.
Claim 61
Dependent Claim
25 words
An aspirate sample that has been obtained using an aspiration needle assembly as claimed in any one of claims 21 to 48, 50 and 51.
Claim 62
Dependent Claim
20 words
An aspirate sample that has been obtained by a method as claimed in any one of claims 52 to 56.
Claim 63
Dependent Claim
19 words
An aspirate sample as claimed in any one of claims 57 to 59, which is a bone-marrow aspirate sample.
Claim 64
Dependent Claim
9 words
Any new feature or combination of features hereinbefore described.
Claim 65
Dependent Claim
9 words
Any new feature or combination of features hereinbefore described.
References Cited (Backward Citations)
GB1333347A
Cited
GB1405556A
Cited
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