Patent US4351874A successfully refreshed from Google Patents.
US6478751B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone marrow aspiration needle
Assignee: CareFusion 2200 Inc
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Filing: 2000-04-18
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Granted: 2002-11-12
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Expires: 2020-04-18
Abstract
Abstract The present invention provides an aspiration device that includes an outer cannula 16 , a stylet 14 , and an aspiration needle 80 . The aspiration needle includes hollow cannula 82 and an aperture 93 . The outer cannula 16 defines a distal tip 29 that is tapered to provide a distal cutting edge. The stylet 14 is designed to be inserted in the outer cannula 16 . The stylet 14 also defines a sharp distal tip 30 . The hollow cannula 82 designed to be inserted in the outer cannula 16 . A distal end 91 of the hollow cannula 82 is closed and an aperture 93 is defined in a side of the hollow cannula 82.
Inventors
- 👤 John A. Krueger
- 👤 Greg Groenke
- 👤 Grant A. Clark
- 👤 Edward Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:45
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
63 words
An aspiration device comprising: an outer cannula secured in a handle, the outer cannula defining a distal tip that provides a distal cutting edge; a stylet designed to be inserted in the outer cannula, the stylet defining a sharp distal tip; a hollow cannula designed to be inserted in the outer cannula; and an aperture defined in a side of the hollow cannula.
Claim 2
Dependent Claim
63 words
An aspiration device comprising: an outer cannula secured in a handle, the outer cannula defining a distal tip that provides a distal cutting edge; a stylet designed to be inserted in the outer cannula, the stylet defining a sharp distal tip; a hollow cannula designed to be inserted in the outer cannula; and an aperture defined in a side of the hollow cannula.
Claim 3
Dependent Claim
27 words
The aspiration device of claim 1 wherein the sharpo distal tip of the stylet is designed to extend to near the distal tip of the outer cannula.
Claim 4
Dependent Claim
11 words
The aspiration device of claim 1 further comprising a biopsy device.
Claim 5
Dependent Claim
29 words
The aspiration device of claim 3 wherein the biopsy device comprises an inner member designed to be inserted in the outer cannula, the inner member defining a cutting finger.
Claim 6
Dependent Claim
23 words
The aspiration device of claim 4 wherein the biopsy device further comprises an ejector pin designed to be inserted into the inner member.
Claim 7
Dependent Claim
21 words
The aspiration device of claim 4 wherein the biopsy device further comprises a protective sheath designed to surround the inner member.
Claim 8
Dependent Claim
32 words
The aspiration device of claim 1 wherein the hollow cannula is secured in a housing that defines a connector which is adapted to be mated with a connector contained in a syringe.
Claim 9
Dependent Claim
16 words
The aspiration device of claim 1 wherein the distal end of the hollow cannula is closed.
Claim 10
Dependent Claim
21 words
The aspiration device of claim 8 wherein the distal end of the hollow cannula is plugged with an ultra-violet bond adhesive.
Claim 11
Dependent Claim
44 words
A bone marrow aspiration device comprising: a housing; a hollow cannula secured in the housing and designed to be inserted in an outer cannula; the distal end of the hollow cannula being closed; and an aperture defined in a side of the hollow cannula.
Claim 12
Dependent Claim
44 words
A bone marrow aspiration device comprising: a housing; a hollow cannula secured in the housing and designed to be inserted in an outer cannula; the distal end of the hollow cannula being closed; and an aperture defined in a side of the hollow cannula.
Claim 13
Dependent Claim
25 words
The aspiration device of claim 9 wherein the housing defines a connector which is adapted to be mated with a connector contained in a syringe.
Claim 14
Dependent Claim
21 words
The aspiration device of claim 11 wherein the distal end of the hollow cannula is plugged with an ultra-violet bond adhesive.
Claim 15
Dependent Claim
50 words
An aspiration device comprising: an outer cannula secured in a handle; a stylet designed to be inserted in the outer cannula; and a hollow cannula designed to be inserted in the outer cannula, the hollow cannula adapted to define an aspiration zone generally to the side of the hollow cannula.
Claim 16
Dependent Claim
50 words
An aspiration device comprising: an outer cannula secured in a handle; a stylet designed to be inserted in the outer cannula; and a hollow cannula designed to be inserted in the outer cannula, the hollow cannula adapted to define an aspiration zone generally to the side of the hollow cannula.
Claim 17
Dependent Claim
18 words
The aspiration device of claim 13 wherein an aperture is defined in a side of the hollow cannula.
Claim 18
Dependent Claim
26 words
The aspiration device of claim 14 wherein the aperture is shaped to define a cone shaped aspiration zone generally to the side of the hollow cannula.
Claim 19
Dependent Claim
23 words
The aspiration device of claim 14 wherein the aperture is shaped to define a cone shaped aspiration zone generally upward from the aperture.
Claim 20
Dependent Claim
16 words
The aspiration device of claim 14 wherein the distal end of the hollow cannula is closed.
Claim 21
Dependent Claim
21 words
The aspiration device of claim 17 wherein the distal end of the hollow cannula is plugged with an ultra-violet bond adhesive.
Claim 22
Dependent Claim
31 words
The aspiration device of claim 16 wherein the outer cannula defines a distal tip that is tapered to provide a distal cutting edge; and the stylet defines a sharp distal tip.
Claim 23
Dependent Claim
27 words
The aspiration device of claim 19 wherein the sharp distal tip of the stylet is designed to extend to near the distal tip of the outer cannula.
Claim 24
Dependent Claim
11 words
The aspiration device of claim 13 further comprising a biopsy device.
Claim 25
Dependent Claim
30 words
The aspiration device of claim 21 wherein the biopsy device further comprises an inner member designed to be inserted in the outer cannula, the inner member defining a cutting finger.
Claim 26
Dependent Claim
23 words
The aspiration device of claim 22 wherein the biopsy device further comprises an ejector pin designed to be inserted into the inner member.
Claim 27
Dependent Claim
21 words
The aspiration device of claim 22 wherein the biopsy device further comprises a protective sheath designed to surround the inner member.
Claim 28
Dependent Claim
31 words
The aspiration device of claim 13 wherein the hollow cannula is secured in housing that defines a connector which is adapted to be mated with a connector contained in a syringe.
Claim 29
Dependent Claim
21 words
The aspiration device of claim 16 wherein the distal end of the hollow cannula is plugged with an ultra-violet bond adhesive.
Claim 30
Dependent Claim
66 words
A kit for administering an aspiration comprising: an outer cannula secured in a handle, the outer cannula defining a distal tip that provides a distal cutting edge; a stylet designed to be inserted in the outer cannula, the stylet defining a sharp distal tip; a hollow cannula designed to be inserted in the outer cannula; and an aperture defined in a side of the hollow cannula.
Claim 31
Dependent Claim
66 words
A kit for administering an aspiration comprising: an outer cannula secured in a handle, the outer cannula defining a distal tip that provides a distal cutting edge; a stylet designed to be inserted in the outer cannula, the stylet defining a sharp distal tip; a hollow cannula designed to be inserted in the outer cannula; and an aperture defined in a side of the hollow cannula.
Claim 32
Dependent Claim
14 words
The kit for administering an aspiration of claim 27 further comprising a biopsy device.
Claim 33
Dependent Claim
32 words
The kit for administering an aspiration of claim 28 wherein the biopsy device comprises an inner member designed to be inserted in the outer cannula, the inner member defining a cutting finger.
Claim 34
Dependent Claim
25 words
The kit for administering an aspiration of claim 29 wherein the biopsy device comprises an ejector pin designed to be inserted into the inner member.
Claim 35
Dependent Claim
23 words
The kit for administering an aspiration of claim 29 wherein the biopsy device comprises a protective sheath designed to curround the inner member.
Claim 36
Independent Claim
81 words
A method for aspirating and sampling bone marrow tissue comprising: inserting a stylet into an outer cannula; penetrating the bone cortex with the stylet and the outer cannula to enter the medular cavity; removing the stylet; inserting an aspiration needle into the outer cannula; creating suction through the aspiration needle; removing the aspiration needle; further inserting the outer cannula into the medular cavity, thereby trapping bone marrow tissue within the outer cannula; and removing the bone marrow tissue from the patient.
Claim 37
Independent Claim
81 words
A method for aspirating and sampling bone marrow tissue comprising: inserting a stylet into an outer cannula; penetrating the bone cortex with the stylet and the outer cannula to enter the medular cavity; removing the stylet; inserting an aspiration needle into the outer cannula; creating suction through the aspiration needle; removing the aspiration needle; further inserting the outer cannula into the medular cavity, thereby trapping bone marrow tissue within the outer cannula; and removing the bone marrow tissue from the patient.
Claim 38
Dependent Claim
50 words
The method for aspirating and sampling bone marrow tissue of claim 32 wherein the step of penetrating the bone cortex with the stylet and the outer cannula is achieved by penetrating the bone cortex with a sharp distal end of the stylet and a beveled distal end of the cannula.
Claim 39
Dependent Claim
44 words
The method for aspirating and sampling bone marrow tissue of claim 32 further including the step of estimating the length of tissue sample by inserting an ejector pin into the outer cannula after the outer cannula has been further inserted into the medular cavity.
Claim 40
Dependent Claim
38 words
The method for aspirating and sampling bone marrow tissue of claim 32 further including the step of extending an inner member into the outer cannula after further inserting the outer cannula, the inner member defining a cutting finger.
Claim 41
Dependent Claim
32 words
The method for aspirating and sampling bone marrow tissue of claim 35 further including the step of rotating the inner member to shear off the bone marrow tissue with the cutting finger.
Claim 42
Dependent Claim
34 words
The method of aspirating and sampling bone marrow tissue of claim 35 further including the step of extending a distal end of the cutting finger to near a distal end of the outer cannula.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-11 | 2006-05-13 | 2006-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-11 | 2010-05-13 | 2010-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-11 | 2014-05-13 | 2014-11-12 | $7700.00 | Window Closed / Lapsed |