CN103654935A - Bone peg with reposition and pressurization functions - Google Patents
Bone peg with reposition and pressurization functions Download PDFInfo
- Publication number
- CN103654935A CN103654935A CN201210325947.0A CN201210325947A CN103654935A CN 103654935 A CN103654935 A CN 103654935A CN 201210325947 A CN201210325947 A CN 201210325947A CN 103654935 A CN103654935 A CN 103654935A
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- CN
- China
- Prior art keywords
- knochenbruch
- nail
- male thread
- sleeve
- rod
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- Pending
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/864—Pins or screws or threaded wires; nuts therefor hollow, e.g. with socket or cannulated
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a bone peg with the reposition and pressurization functions. The bone peg comprises a rod body, a sleeve and a head part. A first male thread and a second male thread are formed at the two opposite ends of the rod body, wherein the first male thread is used for being fixed to a broken bone on a far side. The sleeve is used for being inserted into a broken bone on a close side and provided with a through hole, a female thread meshed with the second male thread of the rod body is arranged on the inner wall of one side of the through hole, the sleeve is made to be annularly connected to the end, provided with the second male thread, of the rod body, and then the broken bone on the close side and the broken bone on the far side are connected. The head part is arranged on the outer wall of the other side, close to the sleeve, of the through hole in an integrally formed mode and used for abutting against one surface of the broken bone on the close side. Consequently, when the head part rotates, relative displacement can be formed between the rod body and the sleeve, and then the two broken bones can oppositely move.
Description
Technical field
The invention relates to a kind of medical device that is used in bone surgery, and particularly about a kind of tool, reset and the nail of pressurization function.
Background technology
Minimally Invasive Surgery has become the new trend of fracture operation clinically owing to possessing the advantages such as patient's wound is little, treatment is convenient, postoperation recovery is quick.In detail, for promoting the postoperation recovery of patient's knochenbruch, surgeon must first see through open reset mode knochenbruch is resetted and pressurization.Afterwards, surgeon is used temporarily fixation of bone fragments of reduction of the fracture instrument (for example various reduction forceps or steel nail).Finally, surgeon is squeezed into nail or inserts hone lamella fixation of bone fragments after confirming that under the displaies such as perspective X-ray machine are observed the relative position of knochenbruch is correct from the wound of cutting.
Please refer to Fig. 7, " the one-piece type intramedullary pin " that No. 200924702nd, TaiWan, China patent publication No. discloses be an example of the nail of use clinically.There are respectively one first abutting end (11) and one second abutting end (12) in two ends of this intramedullary pin (1), and the first abutting end (11) and the second abutting end (12) are formed with external screw thread (13,14) separately, while making this intramedullary pin (1) screw in knochenbruch, the external screw thread of the first abutting end (11) and the second abutting end (12) (13,14) connects knochenbruch, allows knochenbruch fix.
Please refer to Fig. 8, " the pressurization nail (Surgical Compression Bone Screw) that surgical operation is used " that No. 2008/0234763rd, U.S. Patent Publication No. discloses is also another example of the nail that uses clinically.This nail (2) has a longitudinal axis (21), a close end (22) and a long-range portion (23), and in close end (22) and long-range portion (23), distinctly disposes a proximal threads (24) and a long-range screw thread (25).The least radius of proximal threads (24) is in fact the maximum radius that equals long-range screw thread (25), and proximal threads (24) and long-range screw thread (25) have similar in fact thread external form and thread spacing, and proximal threads (24) is successional.When this nail (2) rotates into knochenbruch, the zones of different of knochenbruch is lived in the interlock out of the ordinary of proximal threads (24) and long-range screw thread (25), and fixation of bone fragments knochenbruch is pressurizeed.
In sum, the nail using clinically at present is mainly to provide the function of fixation of bone fragments, although part nail also has the function to knochenbruch pressurization.The U.S. Patent Publication No. of take is example No. 2008/0234763, and while rotating due to this nail (2), proximal threads (24) and long-range screw thread (25) can rotate together, and the pressurization function that this nail (2) is provided is slightly inadequate.In other words, for fear of the global design of the nail using clinically at present, while carrying out fracture operation, surgeon still must see through open reset mode patient's knochenbruch is resetted and pressurization.Therefore, be really necessary to propose to improve for the nail using clinically at present.
Summary of the invention
The object of the invention is to propose a kind of improvement nail, this improvement nail is mainly see through different assemblies connection knochenbruch and see through the relative displacement that different inter-modules produce, the function that provides knochenbruch to reset and pressurize.
For realizing above-mentioned and/or other object, the present invention proposes a kind of nail, is to contain following assembly: a body of rod, a sleeve and a head.The body of rod is formed with respectively one first male thread and one second male thread in two opposed ends of the body of rod, and wherein the first male thread system is for fixing to a distally knochenbruch.Sleeve system is used for being inserted into a nearside knochenbruch, and sleeve has a through hole, and through hole one side inwall is provided with the box thread of the second male thread of an interlock body of rod, makes liner ring extension bar body be provided with the end of the second male thread, with so that nearside knochenbruch and distally knochenbruch connect.Head system is arranged at the outer wall of the another side of through hole of contiguous sleeve in one piece, is used for being resisted against a surface of nearside knochenbruch.By this, when head rotation, between the body of rod and sleeve, can form a relative displacement, nearside knochenbruch and distally knochenbruch are relatively moved.
Accompanying drawing explanation
Fig. 1 is an axonometric chart of the nail of one embodiment of the invention.
Fig. 2 is that the nail of Fig. 1 is along a profile of L-L hatching line.
Fig. 3 A is an illustrative view of the nail of Fig. 1.
Fig. 3 B is another illustrative view of the nail of Fig. 1.
Fig. 4 is that the nail of one embodiment of the invention is used schematic diagram for one of fracture operation.
Fig. 5 is that the nail of one embodiment of the invention is for another use schematic diagram of fracture operation.
Fig. 6 is that the nail of one embodiment of the invention is for a use schematic diagram again of fracture operation.
Fig. 7 is the axonometric chart of the relevant front case of No. 200924702 exposure of TaiWan, China patent publication No..
Fig. 8 is the axonometric chart of the relevant front case of No. 2008/0234763 exposure of U.S. Patent Publication No..
[primary clustering symbol description]
Case > before < is relevant
(1) intramedullary pin
(11) first abutting ends
(12) second abutting ends
(13,14) external screw thread
(2) nail
(21) longitudinal axis
(22) close end
(23) long-range portion
(24) proximal threads
(25) long-range screw thread
< preferred embodiment > of the present invention
(3) body of rod
(31) first male threads
(32) second male threads
(33) tip
(34) clamping slot
(4) sleeve
(41) through hole
(42) box thread
(43) the 3rd male threads
(5) head
(51) blocking hole
(52) the 4th male threads
(6) hone lamella
(A) nearside knochenbruch
(B) distally knochenbruch.
The specific embodiment
For above-mentioned and/or other object of the present invention, effect, feature can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Please refer to Fig. 1,2, is the nail that is illustrating one of the present invention preferred embodiment, and the nail of this better example includes: a body of rod (3), a sleeve (4) and a head (5).
As shown in Figure 2, the body of rod (3) has a first end and a second end with respect to first end, and first end and the second end are distinctly formed with one first male thread (31) and one second male thread (32).The body of rod (3) is still provided with one from the outward extending tip of first end (33), for the object of below discussing.The body of rod (3) is also provided with a clamping slot (34) in the second end, and clamping slot (34) has the shape corresponding to a screwdriver (not shown), is convenient to aim at and the rotation body of rod (3) for screwdriver.
As shown in Figure 2, sleeve (4) has a through hole (41), and through hole (41) has one first side and second side with respect to the first side.The inwall of the first side of through hole (41) is provided with the box thread (42) of corresponding on a screw thread and interlock the second male thread (32), makes the second end of sleeve (4) the articulating body of rod (3).The outer wall of the first side of through hole (41) is separately provided with one the 3rd male thread (43).
As shown in Figure 2, head (5) is the outer wall that is arranged in one piece through hole (41) second sides that are adjacent to sleeve (4).Head (5) is separately provided with the blocking hole (51) of the through hole (41) of a connection sleeve (4), and blocking hole (51) have the shape corresponding to another screwdriver (not shown), is convenient to aim at and rotation head (5) for screwdriver.Head (5) is more equipped with one the 4th male thread (52).
As shown in Figure 2, the blocking hole (51) of head (5) is the clamping slot (34) that is communicated in the body of rod (3), and distinctly aim at and rotate the body of rod (3) and head (5) for convenience of this two-screw bottle opener, the radial section in the blocking hole (51) of head (5) is long-pending is better that the radial section of the clamping slot (34) that is greater than the body of rod (3) is long-pending.
As shown in Figure 2, the blocking hole (51) of head (5) and the through hole (41) of sleeve (4) are interconnected, so the body of rod (3) may and protrude from head (5) from blocking hole (51) through blocking hole (51).For avoiding this situation, the radial section of blocking hole (51) is long-pending is better the maximum radial sectional area that is less than the second male thread (32), thereby makes blocking hole (51) provide one to support only means.
Please refer to Fig. 3 A, 3B, head (5) is the through hole (41) that is arranged in one piece sleeve (4), and the second end of sleeve (4) the articulating body of rod (3), therefore, when head (5) rotates, can form a relative displacement between the body of rod (3) and sleeve (4).
Please refer to Fig. 4,5, is to illustrate the nail of this better example for the ㄧ kind occupation mode of fracture operation.The same with previous fracture operation, surgeon must be in advance in a nearside knochenbruch (A) and a distally knochenbruch (B) boring.
As shown in Figure 4, the tip (33) that utilizes the body of rod (3) is initiating terminal, and nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B) in order.Afterwards, a screwdriver is aimed to the clamping slot (34) of the body of rod (3) and rotate the body of rod (3).In this way, most advanced and sophisticated (33) can be to distally knochenbruch (B) tapping, make the body of rod (3) the first male thread (31) interlock distally knochenbruch (B) hole and be fixed on distally knochenbruch (B).When nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B), the hole of the 3rd male thread (43) interlock nearside knochenbruch (A) of sleeve (4) is also fixed on nearside knochenbruch (A), makes sleeve (4) be inserted into the surface that nearside knochenbruch (A) and head (5) are resisted against nearside knochenbruch (A).The box thread (42) of sleeve (4) is second male thread (32) of the interlock body of rod (3), makes the second end of sleeve (4) the articulating body of rod (3), sees through such structural relation nearside knochenbruch (A) and distally knochenbruch (B) are connected.
As shown in Figure 5, for allowing nearside knochenbruch (A) and distally knochenbruch (B) relatively move, and provide nearside knochenbruch (A) and distally knochenbruch (B) to reset and the function of pressurization, another screwdriver is aimed to the blocking hole (51) of head (5) and rotation head (5).Because head (5) is to be arranged in one piece sleeve (4), and head (5) is the surface that is resisted against nearside knochenbruch (A), makes when head (5) rotates, and sleeve (4) rotates in original place limitedly.Consequently, second male thread (32) of the body of rod (3) is mobile along the box thread (42) of sleeve (4), so form a relative displacement between the body of rod (3) and sleeve (4), nearside knochenbruch (A) and distally knochenbruch (B) is relatively moved.
Please refer to Fig. 6, is to illustrate the nail of this better example for the another kind of occupation mode of fracture operation.Before hole in nail through nearside knochenbruch (A) and distally knochenbruch (B), a hone lamella (6) is resisted against to the surface of nearside knochenbruch (A).Then, nail passes the hole of hone lamella (6) and nearside knochenbruch (A), distally knochenbruch (B) in order, makes the 4th public screw (52) of head (5) be bolted in hone lamella (6).And, on hone lamella (6), be also bolted with a plurality of nails for fixing to other knochenbruch, by the combination of all nails and hone lamella (6), provide nearside knochenbruch (A), distally knochenbruch (B) and other knochenbruch to support.
Comprehensive explanation, this better example is to see through its structure to allow nearside knochenbruch (A) and distally knochenbruch (B) relatively move, thus the function that provides nearside knochenbruch (A) and distally knochenbruch (B) to reset and pressurize.
Although the present invention is exposed in preferred embodiment; so it is not in order to limit the present invention; persond having ordinary knowledge in the technical field of the present invention; within without departing from the spirit or scope of the invention; when doing a little change and retouching, so protection scope of the present invention is when being as the criterion depending on the accompanying claim requestor of institute.
Claims (9)
1. a nail is to comprise:
One body of rod, is formed with respectively one first male thread and one second male thread in two opposed ends of this body of rod, and wherein this first male thread system is for fixing to a distally knochenbruch;
One sleeve, be used for being inserted into a nearside knochenbruch, and this sleeve has a through hole, this through hole one side inwall is provided with the box thread of the second male thread of this body of rod of interlock, make this this body of rod of sleeve articulating be provided with the end of this second male thread, use so that this nearside knochenbruch and this distally knochenbruch connect; And
One head, is arranged at the outer wall of the another side of through hole of contiguous this sleeve in one piece, is used for being resisted against a surface of this nearside knochenbruch;
By this, when this head rotation, between this body of rod and this sleeve, can form a relative displacement, this nearside knochenbruch and this distally knochenbruch are relatively moved.
2. nail as claimed in claim 1, wherein this body of rod is more provided with a tip, and this tip system stretches out from the end that is provided with this first male thread.
3. nail as claimed in claim 1, wherein this head more offers a blocking hole, and this blocking hole system is communicated with the through hole of this sleeve.
4. nail as claimed in claim 3, wherein this blocking hole more has one to support only means, to avoid this body of rod to protrude from this head from this blocking hole.
5. nail as claimed in claim 4, wherein the long-pending system of the radial section in this blocking hole is less than the smallest radial sectional area of this second male thread, to provide to support, stops means.
6. nail as claimed in claim 3, wherein this body of rod is more provided with a clamping slot, and this clamping slot system is arranged at the blocking hole that is provided with the end of this second male thread and is communicated in this head.
7. nail as claimed in claim 6, it is long-pending that wherein the long-pending system of the radial section in the blocking hole of this head is greater than the radial section of clamping slot of this body of rod.
8. nail as claimed in claim 1, wherein this sleeve is more provided with one the 3rd male thread, and the 3rd male thread system is arranged at the outer wall of the side that is provided with this box thread, in order to be fixed on this nearside knochenbruch.
9. nail as claimed in claim 1, wherein this head is more equipped with one the 4th male thread, in order to be bolted in a hone lamella.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325947.0A CN103654935A (en) | 2012-09-06 | 2012-09-06 | Bone peg with reposition and pressurization functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325947.0A CN103654935A (en) | 2012-09-06 | 2012-09-06 | Bone peg with reposition and pressurization functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103654935A true CN103654935A (en) | 2014-03-26 |
Family
ID=50294524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210325947.0A Pending CN103654935A (en) | 2012-09-06 | 2012-09-06 | Bone peg with reposition and pressurization functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103654935A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054642A (en) * | 2012-11-23 | 2013-04-24 | 许家豪 | Detachable resetting compression bone nail |
| CN104323850A (en) * | 2014-09-13 | 2015-02-04 | 吴爱悯 | Transpedicular intervertebral disc diagonal compressible and extensible hollow screw |
| CN112842503A (en) * | 2021-03-05 | 2021-05-28 | 山东航维骨科医疗器械股份有限公司 | Sliding pressure locking bone screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456005A (en) * | 1982-09-30 | 1984-06-26 | Lichty Terry K | External compression bone fixation device |
| US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
| CN1511013A (en) * | 2001-03-30 | 2004-07-07 | 特雷埃吉医药有限公司 | Distal bone anchors for bone fixation with secondary compression |
| WO2004069065A1 (en) * | 2003-02-10 | 2004-08-19 | Cell Center Cologne Gmbh | Dynamic epiphysial telescopic screw |
| US20110184472A1 (en) * | 2008-10-07 | 2011-07-28 | Alfred Niederberger | Expandable Bone Support |
-
2012
- 2012-09-06 CN CN201210325947.0A patent/CN103654935A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456005A (en) * | 1982-09-30 | 1984-06-26 | Lichty Terry K | External compression bone fixation device |
| US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
| CN1511013A (en) * | 2001-03-30 | 2004-07-07 | 特雷埃吉医药有限公司 | Distal bone anchors for bone fixation with secondary compression |
| WO2004069065A1 (en) * | 2003-02-10 | 2004-08-19 | Cell Center Cologne Gmbh | Dynamic epiphysial telescopic screw |
| US20110184472A1 (en) * | 2008-10-07 | 2011-07-28 | Alfred Niederberger | Expandable Bone Support |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054642A (en) * | 2012-11-23 | 2013-04-24 | 许家豪 | Detachable resetting compression bone nail |
| CN103054642B (en) * | 2012-11-23 | 2015-03-18 | 许家豪 | Detachable resetting compression bone nail |
| CN104323850A (en) * | 2014-09-13 | 2015-02-04 | 吴爱悯 | Transpedicular intervertebral disc diagonal compressible and extensible hollow screw |
| CN112842503A (en) * | 2021-03-05 | 2021-05-28 | 山东航维骨科医疗器械股份有限公司 | Sliding pressure locking bone screw |
| WO2022183664A1 (en) * | 2021-03-05 | 2022-09-09 | 山东航维骨科医疗器械股份有限公司 | Sliding, pressurising and locking bone screw |
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| PB01 | Publication | ||
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Application publication date: 20140326 |