CN103054642A - Detachable resetting compression bone nail - Google Patents
Detachable resetting compression bone nail Download PDFInfo
- Publication number
- CN103054642A CN103054642A CN2012104813026A CN201210481302A CN103054642A CN 103054642 A CN103054642 A CN 103054642A CN 2012104813026 A CN2012104813026 A CN 2012104813026A CN 201210481302 A CN201210481302 A CN 201210481302A CN 103054642 A CN103054642 A CN 103054642A
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- China
- Prior art keywords
- knochenbruch
- nail
- rod
- protuberance
- nearside
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Abstract
The invention discloses a detachable resetting compression bone nail which comprises a rod body and a sleeve. First male threads and second male threads are respectively formed at two opposite end portions of the rod body, wherein the first male threads are used for fixing a far side broken bone. The sleeve is provided with a plug-in portion and a protruding portion relative to the plug-in portion, wherein the plug-in portion is used for a near side broken bone to be plugged and provided with a through hole, an inner wall of the through hole is provided with female threads snapping the second male threads, the plug-in portion in annular connection with the rod body is provided with an end portion of the second male threads to enable the near side broken bone and the far side broken bone to be connected, and the protruding portion protrudes one surface of the near side broken bone. Therefore, when the protruding portion of the sleeve rotates, the rod body and the plug-in portion of the sleeve form relative displacement to enable two broken bones to move relatively.
Description
Technical field
The invention relates to a kind of medical device that is used in fracture operation, and particularly about a kind of nail that resets, pressurizes of dismountable.
Background technology
Minimally Invasive Surgery has become the clinically new trend of fracture operation 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 reset to knochenbruch by open reset mode first and pressurize.Afterwards, the surgeon use similarly is temporarily fixation of bone fragments of the reduction of the fracture instruments such as various reduction forceps or steel nail.At last, surgeon is squeezed into nail or is inserted the hone lamella fixation of bone fragments confirm that knochenbruch is in correct relative position under the displaies such as perspective X-ray machine are observed after from the wound of cutting.
Please refer to Figure 12, " the one-piece type intramedullary pin " that No. the 200924702nd, Taiwan 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, so that this intramedullary pin (1) is when screwing 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 Figure 13, " the pressurization nail (Surgical Compression Bone Screw) that surgical operation is used " that No. the 2008/0234763rd, U.S. Patent Publication No. discloses also is another example of the nail that uses clinically.This nail (2) has a longitudinal axis (21), a close end (22) and one long-range (23), and distinctly disposes a proximal threads (24) and a long-range screw thread (25) on close end (22) and long-range (23).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) when rotating 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 and knochenbruch pressurizeed.
In sum, the nail that uses clinically at present mainly provides the function of fixation of bone fragments, although the part nail also has the function to the knochenbruch pressurization.Take No. the 2008/0234763rd, U.S. Patent Publication No. as example, because during its disclosed nail (2) rotation, proximal threads (24) and long-range screw thread (25) can rotate together and enter knochenbruch, so that the pressurization function that this nail (2) provides is slightly inadequate.In other words, for fear of the global design of the nail that uses clinically at present, when carrying out fracture operation, surgeon still must see through open reset mode and patient's knochenbruch is resetted and pressurize.Therefore, really be necessary to propose to improve for the nail that uses clinically at present.
Summary of the invention
The object of the invention is to propose a kind of Improvement type nail, this Improvement type nail mainly is to see through different assemblies to connect knochenbruch and the relative displacement that different inter-modules produce, the function that provides knochenbruch to reset and pressurize are provided.
For realizing aforementioned and/or other purpose, the present invention proposes a kind of nail, is to contain following assembly: a body of rod and a sleeve.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 has an insertion section and a protuberance with respect to the insertion section, wherein insertion section system is used for being inserted into a nearside knochenbruch, and the insertion section has a through hole, the inwall of through hole is provided with the box thread of the second male thread of an interlock body of rod, so that the insertion section articulating body of rod is provided with the end of the second male thread, with so that nearside knochenbruch and distally knochenbruch connect, and protuberance system is used for protruding from a surface of nearside knochenbruch.By this, when the protuberance of sleeve rotates, can form a relative displacement between the insertion section of the body of rod and sleeve, so that nearside knochenbruch and distally knochenbruch are relatively mobile.
Description of drawings
Fig. 1 is an axonometric chart of the nail of the first embodiment.
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 to 6 is the use schematic diagram that the nail of Fig. 1 is used for fracture operation.
Fig. 7 is an axonometric chart of the nail of the second embodiment.
Fig. 8 to 10 is the use schematic diagram that the nail of Fig. 7 is used for fracture operation.
Figure 11 is the again use schematic diagram that the nail of Fig. 7 is used for fracture operation.
Figure 12 is an axonometric chart of the relevant front case of No. 200924702 exposure of Taiwan patent publication No..
Figure 13 is an axonometric chart of the relevant front case of No. 2008/0234763 exposure of U.S. Patent Publication No..
[primary clustering symbol description]
＜relevant front case＞
(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 section
(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) insertion section
(42) protuberance
(43) through hole
(44) box thread
(45) the 3rd male threads
(46) blocking hole
(47) connector
(5) hone lamella
(6) head
(61) the 4th male threads
(A) nearside knochenbruch
(B) distally knochenbruch.
The specific embodiment
For above-mentioned and/or other purpose of the present invention, effect, feature can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Please refer to the 1st, 2 figure, is the nail that is illustrating the first preferred embodiment of the present invention, and the nail of the first better example includes: a body of rod (3) and a sleeve (4).
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 distinctly are formed with one first male thread (31) and one second male thread (32).The body of rod (3) still is provided with one from the outward extending tip of first end (33), with the purpose that is used for hereinafter discussing.The body of rod (3) also is 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 an insertion section (41) and a protuberance with respect to insertion section (41) (42).Insertion section (41) has a through hole (43), and the inwall of through hole (43) is provided with the box thread (44) of correspondence on the screw thread and interlock the second male thread (32), so that the second end of insertion section (41) the articulating body of rod (3).The outer wall of through hole (43) more is provided with one the 3rd male thread (45).
As shown in Figure 2, protuberance (42) is provided with the blocking hole (46) of the through hole (43) of a connection insertion section (41), blocking hole (46) has the shape corresponding to another screwdriver (not shown), is convenient to aim at and rotation protuberance (42) for screwdriver.Protuberance (42) more is equipped with a connection piece (47).
As shown in Figure 2, the blocking hole (46) of protuberance (42) is the clamping slot (34) that is communicated in the body of rod (3), and for making things convenient for this two-screw bottle opener protuberance (42) of aiming at and rotating the body of rod (3) and sleeve (4) out of the ordinary, the radial section of blocking hole (46) is long-pending better to be long-pending greater than the radial section of clamping slot (34).
As shown in Figure 2, the blocking hole (46) of protuberance (42) and the through hole (43) of insertion section (41) interconnect, so the body of rod (3) may pass blocking hole (46) and protrudes from protuberance (42) from blocking hole (46).For avoiding this situation to occur, the radial section of blocking hole (46) is long-pending better to be maximum radial sectional area less than the second male thread (32), thereby makes blocking hole (46) provide one to support and end means.
Please refer to 3A, 3B figure, protuberance (42) is with respect to insertion section (41), and the second end of insertion section (41) the articulating body of rod (3) therefore when protuberance (42) rotates, can form a relative displacement between the insertion section (41) of the body of rod (3) and sleeve (4).
Please refer to Fig. 4 to 6, is to illustrate the nail of the first better example for the ㄧ kind occupation mode of fracture operation.The same with known fracture operation process, surgeon must be in advance in a nearside knochenbruch (A) and a distally knochenbruch (B) boring.
As shown in Figure 4, take the tip (33) of the body of rod (3) as initiating terminal, nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B) in order, and utilize in the lump one support to end the instrument (not shown) and support and stop the protuberance (42) of sleeve (4), allow the 3rd male thread (45) of insertion section (41) and the surface that protuberance (42) protrudes from nearside knochenbruch (A).Then, a screwdriver is aimed at 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, so that the hole of the first male thread (31) interlock distally knochenbruch (B) of the body of rod (3) and be fixed in distally knochenbruch (B).After most advanced and sophisticated (33) are to distally knochenbruch (B) tapping, insertion section (41) partly is inserted into nearside knochenbruch (A), except the 3rd male thread (45) of insertion section (41) still protrudes from the surface of nearside knochenbruch (A), and protuberance (42) protrudes from the surface of nearside knochenbruch (A) equally.The box thread (44) of insertion section (41) is second male thread (32) of the interlock body of rod (3), so that the second end of insertion section (41) 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 making nearside knochenbruch (A) and distally knochenbruch (B) relatively mobile, and the function that provides nearside knochenbruch (A) and distally knochenbruch (B) to reset and pressurize is aimed at another screwdriver the blocking hole (46) of protuberance (42) and is rotated protuberance (42).End instrument to stopping the protuberance (42) of sleeve (4) owing to supporting, therefore when protuberance (42) rotated, rotated in the original place limitedly insertion section (41).Consequently, second male thread (32) of the body of rod (3) along the insertion section box thread (44) of (41) mobile, so form a relative displacement between the body of rod (3) and insertion section (41) so that nearside knochenbruch (A) and distally knochenbruch (B) relatively move.
As shown in Figure 6, after nearside knochenbruch (A) and relatively movement of distally knochenbruch (B), removal supports the only instrument that supports that stops protuberance (42).Then, rotate protuberance (42), so that the 3rd male thread (45) of insertion section (41) screws in the hole of nearside knochenbruch (A), interlock nearside knochenbruch (A) and is fixed in nearside knochenbruch (A).Thus, nail will be fixed in nearside knochenbruch (A) and distally knochenbruch (B).
Please refer to Fig. 7, is the nail that is illustrating the second preferred embodiment of the present invention.The nail of the second better example includes further: a head (6), head (6) are the connectors (47) that is sleeved on removably protuberance (42).For example, head (6) is the connector (47) that screwedly is sleeved on protuberance (42).As shown in Figure 7, head (6) more is equipped with one the 4th male thread (61).
Please refer to Fig. 8 to 10, is to illustrate the nail of the second better example for the ㄧ kind occupation mode of fracture operation.
As shown in Figure 8, when nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B), utilize one support to end the instrument (not shown) and support and stop head (6), allow the 3rd male thread (45) of insertion section (41) and the surface that head (6) protrudes from nearside knochenbruch (A).Afterwards, after most advanced and sophisticated (33) are to distally knochenbruch (B) tapping, insertion section (41) is inserted into nearside knochenbruch (A) partially, except the 3rd male thread (45) of insertion section (41) still protrudes from the surface of nearside knochenbruch (A), and head (6) protrudes from the surface of nearside knochenbruch (A) equally.
As shown in Figure 9, end instrument to stopping head (6) owing to supporting, therefore when head (6) rotated, rotated in the original place limitedly insertion section (41).Consequently, second male thread (32) of the body of rod (3) along the insertion section box thread (44) of (41) mobile, so form a relative displacement between the body of rod (3) and insertion section (41) so that nearside knochenbruch (A) and distally knochenbruch (B) relatively move.
As shown in figure 10, after nearside knochenbruch (A) and relatively movement of distally knochenbruch (B), removal supports the only instrument that supports that stops head (6).Then, rotation head (6) is so that the 3rd male thread (45) of insertion section (41) screws in the hole of nearside knochenbruch (A), interlock nearside knochenbruch (A) and is fixed in nearside knochenbruch (A).Thus, nail will be fixed in nearside knochenbruch (A) and distally knochenbruch (B).
Please refer to Figure 11, is to illustrate the nail of the second better example for the another kind of occupation mode of fracture operation.Before nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B), a hone lamella (5) is resisted against the surface of nearside knochenbruch (A).Then, nail passes the hole of hone lamella (5) and nearside knochenbruch (A), distally knochenbruch (B) in order, so that the 4th male thread (61) of head (6) is bolted in hone lamella (5).And also engaging on the hone lamella (5) has a plurality of nails for fixing to other knochenbruch, by the combination of all nails and hone lamella (5), provides nearside knochenbruch (A), distally knochenbruch (B) and other knochenbruch to support.
Comprehensive explanation, these better examples are to see through its structure to make nearside knochenbruch (A) and distally knochenbruch (B) relatively mobile, thus the function that provides nearside knochenbruch (A) and distally knochenbruch (B) to reset and pressurize.On the other hand, these better examples can optionally remove head (6) behind fracture operation or itself does not namely possess head (6), so these better examples mainly are useful in the fracture operation at small-sized position, for example fracture operation of elbow.
Although the present invention is exposed in preferred embodiment; so it is not to limit the present invention; the persond having ordinary knowledge in the technical field of the present invention; within without departing from the spirit or scope of the invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim requestor of institute.
Claims (10)
1. 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; And
One sleeve, have an insertion section and a protuberance with respect to this insertion section, wherein this insertion section system is used for being inserted into a nearside knochenbruch, and this insertion section has a through hole, the inwall of this through hole is provided with the box thread of the second male thread of this body of rod of interlock, so that this this body of rod of insertion section articulating is provided with the end of this second male thread, use so that this nearside knochenbruch and this distally knochenbruch connect, and this protuberance system is used for protruding from a surface of this nearside knochenbruch;
By this, when the protuberance of this sleeve rotates, can form a relative displacement between the insertion section of this body of rod and this sleeve, so that this nearside knochenbruch and this distally knochenbruch are relatively mobile.
2. nail as claimed in claim 1 more comprises: a head, this head system removably is sleeved on the protuberance of this sleeve.
3. nail as claimed in claim 1, wherein this body of rod more is provided with a tip, and this tip system stretches out from the end that is provided with this first male thread.
4. nail as claimed in claim 1, wherein the protuberance of this sleeve more offers a blocking hole, and this blocking hole system is communicated with the through hole of the insertion section of this sleeve.
5. nail as claimed in claim 4, wherein this blocking hole more has one to support and end means, protrudes from this protuberance to avoid this body of rod from this blocking hole.
6. nail as claimed in claim 5, wherein the long-pending system of the radial section in this blocking hole should support only means less than the smallest radial sectional area of this second male thread to provide.
7. nail as claimed in claim 4, wherein this body of rod more is provided with a clamping slot, the blocking hole that this clamping slot system is arranged at the end that is provided with this second male thread and is communicated in this protuberance.
8. nail as claimed in claim 8, wherein the long-pending system of the radial section in the blocking hole of this protuberance is long-pending greater than the radial section of the clamping slot of this body of rod.
9. nail as claimed in claim 1, wherein the outer wall of the through hole of this insertion section more is provided with one the 3rd male thread, be used to this nearside knochenbruch and this distally knochenbruch relatively mobile after, be fixed in this nearside knochenbruch.
10. nail as claimed in claim 2, wherein this head more is 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 |
|---|---|---|---|
| CN201210481302.6A CN103054642B (en) | 2012-11-23 | 2012-11-23 | Detachable resetting compression bone nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481302.6A CN103054642B (en) | 2012-11-23 | 2012-11-23 | Detachable resetting compression bone nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103054642A true CN103054642A (en) | 2013-04-24 |
| CN103054642B CN103054642B (en) | 2015-03-18 |
Family
ID=48097756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210481302.6A Expired - Fee Related CN103054642B (en) | 2012-11-23 | 2012-11-23 | Detachable resetting compression bone nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103054642B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
| JP2018011936A (en) * | 2016-04-19 | 2018-01-25 | グローバス メディカル インコーポレイティッド | Implantable compression screws |
| CN112155701A (en) * | 2020-10-10 | 2021-01-01 | 江山市人民医院 | Adjustable screw for calcaneus |
| US11278335B2 (en) | 2016-04-19 | 2022-03-22 | Globus Medical, Inc. | Implantable compression screws |
| US11844557B2 (en) | 2020-05-12 | 2023-12-19 | Globus Medical, Inc. | Locking variable length compression screw |
| US11957393B2 (en) | 2021-05-07 | 2024-04-16 | Globus Medical, Inc. | Locking variable length compression screw |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI573558B (en) * | 2015-09-30 | 2017-03-11 | 愛派司生技股份有限公司 | Bone plate set having screws with a plurality of threaded areas |
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| US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
| US6030162A (en) * | 1998-12-18 | 2000-02-29 | Acumed, Inc. | Axial tension screw |
| CN201958992U (en) * | 2011-03-02 | 2011-09-07 | 中国人民解放军第三军医大学第一附属医院 | Pressurized injection universal vertebral pedicle screw |
| CN103654935A (en) * | 2012-09-06 | 2014-03-26 | 许家豪 | Bone peg with reposition and pressurization functions |
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2012
- 2012-11-23 CN CN201210481302.6A patent/CN103054642B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5498265A (en) * | 1991-03-05 | 1996-03-12 | Howmedica Inc. | Screw and driver |
| US6030162A (en) * | 1998-12-18 | 2000-02-29 | Acumed, Inc. | Axial tension screw |
| CN201958992U (en) * | 2011-03-02 | 2011-09-07 | 中国人民解放军第三军医大学第一附属医院 | Pressurized injection universal vertebral pedicle screw |
| CN103654935A (en) * | 2012-09-06 | 2014-03-26 | 许家豪 | Bone peg with reposition and pressurization functions |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
| JP2018011936A (en) * | 2016-04-19 | 2018-01-25 | グローバス メディカル インコーポレイティッド | Implantable compression screws |
| US11197704B2 (en) | 2016-04-19 | 2021-12-14 | Globus Medical, Inc. | Implantable compression screws |
| US11278335B2 (en) | 2016-04-19 | 2022-03-22 | Globus Medical, Inc. | Implantable compression screws |
| US11638600B2 (en) | 2016-04-19 | 2023-05-02 | Globus Medical, Inc. | Implantable compression screws |
| US11844557B2 (en) | 2020-05-12 | 2023-12-19 | Globus Medical, Inc. | Locking variable length compression screw |
| CN112155701A (en) * | 2020-10-10 | 2021-01-01 | 江山市人民医院 | Adjustable screw for calcaneus |
| CN112155701B (en) * | 2020-10-10 | 2023-03-28 | 江山市人民医院 | Adjustable screw for calcaneus |
| US11957393B2 (en) | 2021-05-07 | 2024-04-16 | Globus Medical, Inc. | Locking variable length compression screw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103054642B (en) | 2015-03-18 |
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Granted publication date: 20150318 Termination date: 20151123 |