US20030036762A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Threaded syringe for delivery of a bone substitute material
Assignee: Synthes USA LLC
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Filing: 2001-08-20
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Granted: —
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Expires: 2021-08-20
Abstract
Abstract The invention relates to a syringe for delivery of a bone substitute material. The syringe includes a barrel for holding the material, a plunger receivable within the barrel and having a threaded portion, and an engagement member including a threaded throughbore positioned coaxial with the barrel. The threaded portion of the plunger is movable through the threaded throughbore barrel by pushing the plunger in the axial direction, and by rotating the plunger. The invention also relates to a method of expelling material from a syringe.
Inventors
- 👤 Sean Kerr
- 👤 Mark Fulmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8805; A61B17/8822; A61B17/34; A61B17/3472; A61M37/00; A61M37/0069; A61M5/31; A61M5/315; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/46; A61F2/4601; A61F2310/00; A61F2310/00005; A61F2310/00353
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
91 words
1 . A syringe for delivery of a bone substitute material, comprising: a barrel for holding the material and having a longitudinal axis extending therethrough; a plunger receivable within the barrel and having a threaded portion; and an engagement member positioned coaxial with the barrel, the engagement member including a threaded throughbore having threads that are complimentary to the threaded portion of the plunger, wherein the threaded portion of the plunger is movable through the threaded throughbore barrel by pushing the plunger in the axial direction, and by rotating the plunger.
Claim 2
Dependent Claim
91 words
1 . A syringe for delivery of a bone substitute material, comprising: a barrel for holding the material and having a longitudinal axis extending therethrough; a plunger receivable within the barrel and having a threaded portion; and an engagement member positioned coaxial with the barrel, the engagement member including a threaded throughbore having threads that are complimentary to the threaded portion of the plunger, wherein the threaded portion of the plunger is movable through the threaded throughbore barrel by pushing the plunger in the axial direction, and by rotating the plunger.
Claim 3
Dependent Claim
22 words
2 . The syringe of claim 1 , wherein the engagement member has a C-shape and includes a slot extending radially therethrough.
Claim 4
Dependent Claim
18 words
3 . The syringe of claim 2 , wherein the engagement member is expandable in the radial direction.
Claim 5
Dependent Claim
17 words
4 . The syringe of claim 1 , wherein the cross-sectional area of the throughbore is variable.
Claim 6
Dependent Claim
28 words
5 . The syringe of claim 1 , wherein the throughbore includes an inner surface that is in full contact with the plunger when the plunger moves therethrough.
Claim 7
Dependent Claim
44 words
6 . The syringe of claim 1 , wherein the material exits the barrel under a first pressure when the plunger is pushed in the distal direction and the material exits the barrel under a second pressure when the plunger is advanced through rotation.
Claim 8
Dependent Claim
33 words
7 . The syringe of claim 1 , wherein an audible noise is made as the threaded portion plunger moves past the engagement member when the plunger is pushed in the axial direction.
Claim 9
Dependent Claim
23 words
8 . The syringe of claim 7 , wherein a predetermined amount of material is expelled from the barrel with each audible click.
Claim 10
Dependent Claim
30 words
9 . The syringe of claim 1 , wherein a predetermined amount of material is expelled from the barrel when the barrel is advanced with each rotation of the plunger.
Claim 11
Dependent Claim
35 words
10 . The syringe of claim 1 , further comprising a coupling member configured to receive a portion of a package containing material to facilitate the transfer of material from the package to the barrel.
Claim 12
Dependent Claim
23 words
11 . The syringe of claim 10 , wherein the coupling member includes a funnel member to funnel the material into the barrel.
Claim 13
Dependent Claim
29 words
12 . The syringe of claim 1 , further comprising a finger grip coupled to the barrel at the proximal end, the engagement member housed within the finger grip.
Claim 14
Dependent Claim
18 words
13 . The syringe of claim 12 , wherein the finger grip comprises a pair of half shells.
Claim 15
Dependent Claim
50 words
14 . The syringe of claim 12 , wherein the engagement member is movable within the finger grip between a first position to allow the plunger to advance by pushing the plunger in the axial direction and a second position to allow the plunger to advance by rotating the plunger.
Claim 16
Dependent Claim
34 words
15 . The syringe of claim 14 , wherein the engagement member includes an extension arm that contacts the inner wall of the finger grip when the engagement member is in the first position.
Claim 17
Dependent Claim
31 words
16 . The syringe of claim 14 , wherein the engagement member engages a seat for preventing the engagement member from expanding when the engagement member is in the second position.
Claim 18
Dependent Claim
53 words
17 . A method of expelling material from a syringe having a barrel with an engagement member, and a plunger, comprising the steps of: moving the plunger within the barrel by pushing the plunger through the engagement member; and moving the plunger within the barrel by rotating the plunger through the engagement member.
Claim 19
Dependent Claim
53 words
17 . A method of expelling material from a syringe having a barrel with an engagement member, and a plunger, comprising the steps of: moving the plunger within the barrel by pushing the plunger through the engagement member; and moving the plunger within the barrel by rotating the plunger through the engagement member.
References Cited (Backward Citations)
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