US7736381B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bone screw and bone screw with holding element
Assignee: Biedermann Technologies GmbH and Co KG
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Filing: 2003-10-06
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Granted: 2010-06-15
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Expires: 2023-10-06
Abstract
Abstract A bone screw includes a thread section of tubular construction having a first end and a second end and a tip at the first end. The tubular thread section has a bone thread on its outer wall, which has a plurality of recesses. The bone screw further includes a holding element with a first section for connection to the thread section and a rod-like second section. The rod-like second section protrudes beyond the second end of the thread section in the inserted state of the holding element. The boric screw also includes a stop for limiting the distance of insertion of the holding element in the thread section. The holding element also includes an element at its free end for engagement with a screw-in tool.
Inventors
- 👤 Lutz Biedermann
- 👤 Jürgen Harms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:01
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/8625; A61B17/72; A61B17/7233; A61B17/7241; A61B17/80; A61B17/8635; A61B17/864; A61B17/8685; A61B17/74; A61B17/742; A61B17/744; A61B17/746; A61B17/8645
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
283 words
A bone screw comprising: an elongated tube having a first end, a second end and a tubular wall defining an interior opening extending from the first end to the second end, the tube being suitable for implanting in a living body; a tip at the first end of the tube; and an elongated holding clement having a first end section connected to the second end of the tube, a second end section opposite the first end section having a surface configured to cooperate with a screw-in tool and an elongated rod-like middle section between the first end section and the second end section having a longitudinal length, the tube and the holding element defining a longitudinal axis extending from the first end to the second end of the tube and along the longitudinal length of the holding element from the first end section to the second end section; wherein the tube further comprises a bone thread on an outside surface of the tubular wall and the tubular wall comprises a plurality of recesses through the tubular wall to the interior opening forming a mesh-like open network; wherein a diameter along an entire length of the tube is greatest at an outer diameter of the bone thread such that the tube is fully immersed in an opening created when screwing in; wherein the length of the middle section of the holding element extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; and wherein the holding element is suitable to transfer torque applied to the second end section from a screw-in tool to the tube to screw-in and fully immerse the tube into a bone.
Claim 2
Dependent Claim
283 words
A bone screw comprising: an elongated tube having a first end, a second end and a tubular wall defining an interior opening extending from the first end to the second end, the tube being suitable for implanting in a living body; a tip at the first end of the tube; and an elongated holding clement having a first end section connected to the second end of the tube, a second end section opposite the first end section having a surface configured to cooperate with a screw-in tool and an elongated rod-like middle section between the first end section and the second end section having a longitudinal length, the tube and the holding element defining a longitudinal axis extending from the first end to the second end of the tube and along the longitudinal length of the holding element from the first end section to the second end section; wherein the tube further comprises a bone thread on an outside surface of the tubular wall and the tubular wall comprises a plurality of recesses through the tubular wall to the interior opening forming a mesh-like open network; wherein a diameter along an entire length of the tube is greatest at an outer diameter of the bone thread such that the tube is fully immersed in an opening created when screwing in; wherein the length of the middle section of the holding element extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; and wherein the holding element is suitable to transfer torque applied to the second end section from a screw-in tool to the tube to screw-in and fully immerse the tube into a bone.
Claim 3
Dependent Claim
43 words
A bone screw according to claim 1 , wherein the tube further comprises a first internal thread section at its second end and the first end section of the holding element comprises an external thread for cooperation with the first internal thread section.
Claim 4
Dependent Claim
22 words
A bone screw according to claim 2 , wherein the tube further comprises a second internal thread section at the first end.
Claim 5
Dependent Claim
21 words
A bone screw according to claim 2 , wherein the first internal thread section comprises a metric or an inch thread.
Claim 6
Dependent Claim
49 words
A bone screw according to claim 1 , wherein the second end of the tube and the first end section of the holding element are fixed to each other along unthreaded surfaces so as to form a press fit that prevents movement in opposite directions along the longitudinal axis.
Claim 7
Dependent Claim
23 words
A bone screw according to claim 1 , wherein the second end section comprises an engagement element for cooperation with a screw-in tool.
Claim 8
Dependent Claim
37 words
A bone screw according to claim 1 , wherein the tube further comprises a stop located on an inside surface of the tubular wall to engage and prevent further penetration of the holding element into the tube.
Claim 9
Dependent Claim
35 words
A bone screw according to claim 1 , wherein an internal thread section extends over a full length of the tube and the tip is structured and arranged to cooperate with the internal thread section.
Claim 10
Dependent Claim
19 words
A bone screw according to claim 1 , wherein the tip is structured and arranged as a self-tapping tip.
Claim 11
Dependent Claim
14 words
A bone screw according to claim 1 , wherein the tip comprises a cannula.
Claim 12
Dependent Claim
15 words
A bone screw according to claim 10 , wherein the holding element comprises a cannula.
Claim 13
Dependent Claim
15 words
A bone screw according to claim 1 , wherein the holding element comprises a cannula.
Claim 14
Dependent Claim
46 words
A bone fixation device comprising a bone screw according to claim 1 , a plate for fixation of a bone, the plate comprising a recess through which the holding element can be passed, and a nut for cooperating with the holding element to fix the plate.
Claim 15
Dependent Claim
33 words
A bone fixation device comprising a bone screw according to claim 1 and a marrow nail for fixing a bone, the marrow nail comprising a recess through which the holding element is passed.
Claim 16
Dependent Claim
39 words
A bone screw according to claim 1 further comprising a nut, wherein the holding element further comprises an external thread opposite the first end section and cooperating with the nut when the tube is fully immersed in a bone.
Claim 17
Dependent Claim
29 words
A bone screw of claim 15 , wherein the first end section of the holding element is connected to the second end of the tube by a threaded connection.
Claim 18
Dependent Claim
40 words
A bone screw of claim 15 , wherein the first end section of the holding element is connected to the second end of the tube by a press fit connection that prevents movement in opposite directions along the longitudinal axis.
Claim 19
Dependent Claim
29 words
A bone screw of claim 1 , wherein the first end section of the holding element is connected to the second end of the tube by a threaded connection.
Claim 20
Dependent Claim
40 words
A bone screw of claim 1 , wherein the first end section of the holding element is connected to the second end of the tube by a press fit connection that prevents movement in opposite directions along the longitudinal axis.
Claim 21
Dependent Claim
24 words
A bone screw according to claim 1 further comprising a stop for limiting a distance of insertion of the holding element into the tube.
Claim 22
Dependent Claim
22 words
A bone screw according to claim 20 , wherein the stop comprises a shoulder on the middle section of the holding element.
Claim 23
Dependent Claim
68 words
A bone screw according to claim 20 wherein the stop is configured as a projection on the holding element, the projection extending in a direction transverse to the longitudinal axis, the first end section starting from the projection and extending in a direction away from the second end section in the direction of the longitudinal axis, the projection preventing further penetration of the holding element into the tube.
Claim 24
Dependent Claim
55 words
A bone screw according to claim 22 , wherein a greatest outer diameter of the projection is less than or equal to the greatest outer diameter of the bone thread of the tube so that the projection does not form an obstacle in the bone opening when the bone screw is screwed into the bone.
Claim 25
Dependent Claim
80 words
A bone screw according to claim 1 wherein one of the first end section of the holding element and the tubular wall is located inside the other of the first end section of the holding element and the tubular wall to form an overlap along the longitudinal axis, a length of a remainder of the holding element along the longitudinal axis being longer than the overlap when the holding element and the elongated tube are fully assembled to each other.
Claim 26
Dependent Claim
294 words
A bone screw comprising: a one-piece elongated tube with a tubular wall and having a first open end extending through the elongated tube to a second open end, the tube defining a longitudinal axis extending from the first open end to the second open end of the tube, the tubular wall containing a plurality of recesses through the tubular wall forming a mesh-like open network, the tube being suitable for implanting in a living body; a tip connectable to the first open end of the tube; and an engagement element at the second open end that cooperates with a screw-in tool; wherein the tube further comprises: a bone thread on an outside surface of the tubular wall along a section of the tubular wall, the section having a first length extending in a direction of the longitudinal axis from a first end of the bone thread adjacent the tip; an adjoining section free of bone thread and having a second length extending in the direction of the longitudinal axis from a second end of the bone thread, the adjoining section comprising the second end of the tube; wherein a greatest diameter of the entire adjoining section free of bone thread is less than or equal to a greatest outer diameter of the bone thread of the tube such that the bone screw is fully immersed in an opening created when screwing in; wherein the second length of the adjoining section extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; and wherein the adjoining section is suitable to transfer torque applied to the second open end from a screw-in tool to the bone thread to screw-in and fully immerse the bone thread into a bone.
Claim 27
Dependent Claim
294 words
A bone screw comprising: a one-piece elongated tube with a tubular wall and having a first open end extending through the elongated tube to a second open end, the tube defining a longitudinal axis extending from the first open end to the second open end of the tube, the tubular wall containing a plurality of recesses through the tubular wall forming a mesh-like open network, the tube being suitable for implanting in a living body; a tip connectable to the first open end of the tube; and an engagement element at the second open end that cooperates with a screw-in tool; wherein the tube further comprises: a bone thread on an outside surface of the tubular wall along a section of the tubular wall, the section having a first length extending in a direction of the longitudinal axis from a first end of the bone thread adjacent the tip; an adjoining section free of bone thread and having a second length extending in the direction of the longitudinal axis from a second end of the bone thread, the adjoining section comprising the second end of the tube; wherein a greatest diameter of the entire adjoining section free of bone thread is less than or equal to a greatest outer diameter of the bone thread of the tube such that the bone screw is fully immersed in an opening created when screwing in; wherein the second length of the adjoining section extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; and wherein the adjoining section is suitable to transfer torque applied to the second open end from a screw-in tool to the bone thread to screw-in and fully immerse the bone thread into a bone.
Claim 28
Dependent Claim
28 words
A bone screw according to claim 25 , wherein the engagement element comprises an internal thread section at the second open end that cooperates with a screw-in tool.
Claim 29
Dependent Claim
44 words
A bone screw according to claim 25 , wherein the engagement element comprises an internal thread section at the second open end, and the bone screw further comprises a driving element that cooperates with the engagement element and further cooperates with a screw-in tool.
Claim 30
Dependent Claim
42 words
A bone screw according to claim 25 , wherein the engagement element comprises an internal thread section at the second open end, and the bone screw further comprises a fixation element that cooperates with the engagement element for fixing the bone screw.
Claim 31
Dependent Claim
31 words
A bone screw according to claim 25 , wherein the second length of the adjoining section is the same as or greater than the first length of the bone thread section.
Claim 32
Independent Claim
325 words
A method of attaching a bone screw to a bone wherein the bone screw comprises an elongated tube having a first end, a second end and a tubular wall defining an interior opening extending from the first end to the second end, the tube being suitable for implanting in a living body; a tip at the first end of the tube; and an elongated holding element having a first end section connected to the second end of the tube, a second end section opposite the first end section having a surface configured to cooperate with a screw-in tool and an elongated rod-like middle section between the first end section and the second end section having a longitudinal length, the tube and the holding element defining a longitudinal axis extending from the first end to the second end of the tube and along the longitudinal length of the holding element from the first end section to the second end section; wherein the tube further comprises a bone thread on an outside surface of the tubular wall and the tubular wall comprises a plurality of recesses through the tubular wall to the interior opening forming a mesh-like open network; wherein a diameter along an entire length of the tube is greatest at an outer diameter of the bone thread such that the tube is fully immersed in an opening created when screwing in; and wherein a length of the middle section of the holding element extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; the method comprising: connecting the first end section of the elongated holding element to the second end of the tube; attaching a screw-in tool to the surface of the second end section of the holding element; and fully introducing the elongated tube into the bone while the screw-in tool is attached to the surface of the second end section of the holding element.
Claim 33
Independent Claim
325 words
A method of attaching a bone screw to a bone wherein the bone screw comprises an elongated tube having a first end, a second end and a tubular wall defining an interior opening extending from the first end to the second end, the tube being suitable for implanting in a living body; a tip at the first end of the tube; and an elongated holding element having a first end section connected to the second end of the tube, a second end section opposite the first end section having a surface configured to cooperate with a screw-in tool and an elongated rod-like middle section between the first end section and the second end section having a longitudinal length, the tube and the holding element defining a longitudinal axis extending from the first end to the second end of the tube and along the longitudinal length of the holding element from the first end section to the second end section; wherein the tube further comprises a bone thread on an outside surface of the tubular wall and the tubular wall comprises a plurality of recesses through the tubular wall to the interior opening forming a mesh-like open network; wherein a diameter along an entire length of the tube is greatest at an outer diameter of the bone thread such that the tube is fully immersed in an opening created when screwing in; and wherein a length of the middle section of the holding element extending along the longitudinal axis is greater than the greatest outer diameter of the bone thread of the tube; the method comprising: connecting the first end section of the elongated holding element to the second end of the tube; attaching a screw-in tool to the surface of the second end section of the holding element; and fully introducing the elongated tube into the bone while the screw-in tool is attached to the surface of the second end section of the holding element.
Claim 34
Dependent Claim
20 words
A method of claim 30 , further comprising filling at least a portion of the elongated tube with bone material.
Claim 35
Dependent Claim
24 words
A method of claim 31 , further comprising filling the elongated tube with bone material before connecting the holding element to the elongated tube.
Claim 36
Dependent Claim
11 words
A method of claim 31 further comprising shortening the holding element.
Claim 37
Dependent Claim
42 words
A method of claim 30 , wherein connecting the holding element to the elongated tube comprises screwing a threaded portion of the first end section of the holding element into a threaded inner portion of the second end of the elongated tube.
Claim 38
Dependent Claim
44 words
A method of claim 30 , wherein connecting the holding element to the elongated tube comprises press fining the first end section of the holding element into the second end of the elongated tube to prevent movement in opposite directions along the longitudinal axis.
Claim 39
Dependent Claim
21 words
A method of claim 30 , further comprising removing the holding element after the elongated tube is immersed into the bone.
Claim 40
Dependent Claim
15 words
The method of claim 30 further comprising attaching a fixation device to the holding element.
Claim 41
Dependent Claim
42 words
A method of claim 37 wherein before attaching the fixation device, the method further comprises removing the holding element from the bone screw, applying a filler material into the interior opening of the tube, and reconnecting the holding element to the tube.
Claim 42
Dependent Claim
16 words
A method of claim 37 wherein the fixation device comprises a plate or a marrow nail.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2013-06-14 | 2013-12-14 | 2014-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2017-06-14 | 2017-12-14 | 2018-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2021-06-14 | 2021-12-14 | 2022-06-15 | $7700.00 | Window Closed / Lapsed |