EP0906065B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Intermedullary rod apparatus for repairing proximal humerus fractures
Assignee: Nuvana Medical Innovations LLC
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Filing: 1997-04-23
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Granted: 2004-09-01
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Expires: 2017-04-23
Abstract
Abstract A bone stabilizing apparatus includes a stem member and an extension member, the stem member (1) having a distal end (6) for insertion within the intramedullary canal of a human humerus and the proximal end (8) connected to the extension member. The extension member (2) has radially directed threaded holes either pre-formed or created after the bone stabilizing apparatus is installed into the humerus. The threaded holes (20) allow fixation of stabilizing screws (22) with suture posts (28), or a washer structure (26) to grip the surface of the bone and/or surrounding ligaments or muscle. A prosthetic or the natural humeral head can be attached to the extension member. In a preferred embodiment a guide structure directs the drill and stabilizing screws radially through the central axis of the extension member. <IMAGE>
Inventors
- 👤 Edward J. Mikol
- 👤 Thomas J. Chambers
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1725; A61B17/1739; A61B17/1778; A61B17/56; A61B17/58; A61B17/68; A61B17/72; A61B17/7233; A61B17/7241; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/40; A61F2/4014; A61B17/04; A61B17/0401; A61B17/06; A61B17/06166; A61B17/84; A61B17/86; A61B17/8695; A61B2017/00004; A61B2017/044; A61B2017/0445; A61B2017/0446; A61B2017/0458; A61F2/3094; A61F2/30965; A61F2/4059; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30332; A61F2002/30405; A61F2002/30433; A61F2002/30535; A61F2002/30537; A61F2002/3055; A61F2002/30574; A61F2002/30593; A61F2002/30604; A61F2002/30616; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/4018; A61F2002/4029; A61F2002/4037; A61F2002/4044; A61F2002/4062; A61F2002/4066; A61F2/46; A61F2002/4681; A61F2210/00; A61F2210/0004; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0041; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00029
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
A bone stabilizing device, comprising: a stem member (1), extending substantially along an axis,
for insertion into a bone cavity, said stem member (1)
having a distal end (6) and a proximal end (8); an extension member (2), extending substantially along a central longitudinal
axis defining a slight angle with central longitudinal axis of the
stem member (1), the extension member (2) having a distal
and a proximal end, said distal end being removably attached to said
proximal end (8) of said stem member (1); and means (20, 22) for securing a bone
to said extension member (2) characterized by said means (20, 22) comprising a stabilizing
screw (22, 24) having a first end threaded into the
extension member (2) and a second end spaced apart from
said extension member (2) and means (22a, 26) connected
to said second end for pressing on a surface of the bone to
urge the bone against said extension member (2).
Claim 2
Dependent Claim
108 words
A bone stabilizing device according to claim 1 wherein
said extension member (2) consisting essentially of a plastic
material substantially devoid of a metal casing, and said means for securing bone material includes a threaded
hole (20) transversely disposed in and opening out of said
extension member (2), an attachment screw (22) having a threaded portion
engaged with said threaded hole (20) and having a screw
head spaced apart from an outer surface of said extension
member (2), wherein a rotation of said threaded attachment screw (22)
. urges said screw head (22a) against the bone material and
thereby urges the bone material against the extension
member (2).
Claim 3
Dependent Claim
55 words
A bone stabilizing device according to claim 2, further
comprising a washer (26) disposed between said screw head
(22a) and an outer surface of said extension member (2),
wherein a rotation of said threaded attachment screw (22)
urges said washer (26) against the bone material and thereby
urges the bone against the extension member (2).
Claim 4
Dependent Claim
29 words
A bone stabilizing device according to claim 1, wherein said
means for securing bone material comprises a means for
attaching a suture (24) thread to said extension member (2).
Claim 5
Dependent Claim
49 words
A bone stabilizing device according to claim 1, further
comprising: guide means (34) for supportively guiding a drill bit at a
selectable point and angle of incidence relative to said
extension member (2); and connection means (36) for removably connecting said guide
means (34) to said extension member (2).
Claim 6
Dependent Claim
167 words
A bone stabilizing device according to claim 5, wherein said
guide means (34) for supportively guiding a drill bit comprises: a drill guide sleeve (58) having a bore axis; and means for connecting (52) said guide sleeve (58) to said
extension member (2) at a selectable position, said means
including: means for moving (50) said drill guide sleeve (58) to a first
axis position such that said bore axis has an angle ϕ with
said central axis, means for locking (52) drill guide sleeve (58) at said first
axis position, means for moving (46) said drill guide sleeve (58) to a
second axis position such that said bore axis has a selected
rotation position around said central axis, means for locking (52) said drill guide sleeve (58) at said
selected rotation position, means for translational movement (40) of said drill guide
sleeve (58) to a selected translational position along said
longitudinal axis, and means for locking (48) said drill guide sleeve (58) at said
selected translational position.
Claim 7
Dependent Claim
27 words
A bone stabilizing device according to claim 1, further
comprising a positioning means for connecting a bone (66) to
said extension member (2) at a predetermined angle.
Claim 8
Dependent Claim
67 words
A bone stabilizing device according to claim 7, wherein said
positioning means comprises an angled fixation bracket (64)
connected to said extension member (2), said angled fixation
bracket (64) having a support plate (72) for supporting the
bone (66) having a plurality of passages (70) formed
therethrough; and a means (68) for connecting the bone (66)
to the support plate (72) through said plurality of passages
(70).
Claim 9
Dependent Claim
129 words
A bone stabilizing device according to claim 7, wherein said positioning means comprises an angled fixation bracket
(98) connected to said extension member (2), said angled
fixation bracket (98) having a support plate (100) for
supporting the bone (66) and further comprising a plurality
of mounting screws (92), said screws (92) each having a first and second threaded
portion, said first portion having a first thread pitch (96) and
said second portion having a second thread pitch (94)
greater than said first pitch (96), said screws (92) being
arranged such that said first portion (96) is threaded into
said bone (66) and said second portion is threaded into said
support plate (100), whereby a rotation of said mounting screws (92) urges said
bone (66) against said support plate (100).
Claim 10
Dependent Claim
110 words
A bone stabilizing device according to claim 7, wherein said
positioning means comprises: an angled fixation bracket (104) connected to said extension
member (2), said angled fixation bracket (104) having a
support plate (109) for supporting the bone (66); a plurality of cannulated mounting screws (106) each having
a head on a first side of said support plate (109) and a
threaded portion extending into a bone (66) on a second
side of said support plate (109), said cannulated screws
(106) each having a through-bore (107); and a suture thread (110) passing through the through-bore
(107) of at least two of said cannulated screws (106) and
through said bone (66).
Claim 11
Dependent Claim
29 words
A bone stabilizing device according to claim 10 wherein at
least one of said cannulated screws (106) includes a suture tie
bar (108') located proximal to the head thereof.
Claim 12
Dependent Claim
85 words
A bone stabilizing device according to claim 7 wherein said
positioning means comprises a plurality of rods , each of
said rods . having: a first portion (109) extending through a corresponding
lateral clearance hole in said extension member (2); a threaded portion (108) for threaded engagement into said
bone (66); means (110) for moving said rod axially through said
lateral clearance hole ; and means (110) for locking said rod to said extension
member (2) at a selectable axial position within said
clearance hole
Claim 13
Dependent Claim
49 words
A bone stabilizing device according to claim 1, further
comprising: a prosthetic humeral head (112); positioning means (114) for connecting said prosthetic
humeral head (112) to said extension member (2) in a predetermined
position humeral neck-shaft angle; and means for locking (122) prosthetic humeral head (112) in
said position.
Claim 14
Dependent Claim
31 words
A bone stabilizing device according to claim 13, wherein said
positioning means (122) are removably connected to at least
one of said prosthetic humeral head (112) and said extension
member (2).
Claim 15
Dependent Claim
42 words
A bone stabilizing device according to claim 1, wherein said
means for securing said bone comprises: extension portion (134) spaced apart from an outer surface
of said extension member (2); and means for adhering (136) said extension portion (134) said
to bone.
Claim 16
Dependent Claim
97 words
A bone stabilizing device according to claim 1, wherein said
means for securing said bone includes a bore formed in said
extension member (140), said bore having an opening (146) at
a proximal portion of the extension member (140) and a
plurality of passageways (142) extending from a surface of
said extension member (140) to said bore (146), said bore
(146) and said passageways (142) for receiving a viscous
adhesive flowing into said opening such that said adhesive
flows into and through said bore and through said
passageways (142) and out of (144) said extension member
(140).
Claim 17
Dependent Claim
127 words
A bone stabilizing device according to claim 1, characterized
by positioning means for connecting the bone (66) to said
extension member (2) at a predetermined angle, said
positioning means comprising: an angled fixation bracket (104) connected to said extension
member (2), said angled fixation bracket (104) having a
support plate (109) for supporting the bone (66); a plurality of cannulated mounting screws (106) each having
a head on a first side of said support plate (109) and a
threaded portion extending into the bone (66) against a
second side of said support plate (109), said cannulated
screws (106) each having a through-bore (107); and a suture thread (110) passing through the through-bore
(107) of at least one of said cannulated screws (106) and
through said bone (66).
Claim 18
Dependent Claim
29 words
A bone stabilizing device according to claim 17, wherein at
least one of said cannulated screws (106) includes a suture tie
bar (108') located proximal to the head thereof.
References Cited (Backward Citations)
No citation records indexed.
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