CN103054642B - Detachable resetting compression bone nail - Google Patents
Detachable resetting compression bone nail Download PDFInfo
- Publication number
- CN103054642B CN103054642B CN201210481302.6A CN201210481302A CN103054642B CN 103054642 B CN103054642 B CN 103054642B CN 201210481302 A CN201210481302 A CN 201210481302A CN 103054642 B CN103054642 B CN 103054642B
- Authority
- CN
- China
- Prior art keywords
- knochenbruch
- nail
- protuberance
- rod
- nearside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Surgical Instruments (AREA)
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 being used in fracture operation, and particularly about a kind of reset, pressurization nail of dismountable.
Background technology
Minimally Invasive Surgery has become the new trend of fracture operation clinically owing to possessing the advantages such as patient wound is little, treatment is convenient, postoperation recovery is quick.In detail, for promoting the postoperation recovery of patient's knochenbruch, surgeon must first reset and pressurization to knochenbruch by open reset mode.Afterwards, surgeon uses similarly is the reduction of the fracture instrument temporarily fixation of bone fragments such as various reduction forceps or steel nail.Finally, surgeon is squeezed into nail or inserts 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, " one-piece type intramedullary pin " that No. 200924702nd, Taiwan patent publication No. discloses is an example of the nail used clinically.Two ends of this intramedullary pin (1) have one first abutting end (11) and one second abutting end (12) respectively, and the first abutting end (11) and the second abutting end (12) are formed with external screw thread (13,14) separately, when making this intramedullary pin (1) screw in knochenbruch, the external screw thread (13,14) of the first abutting end (11) and the second abutting end (12) connects knochenbruch, allows knochenbruch fix.
Please refer to Figure 13, " the pressurization nail (Surgical Compression Bone Screw) of surgical operation " that No. 2008/0234763rd, U.S. Patent Publication No. discloses also is another example of the nail used clinically.This nail (2) has a longitudinal axis (21), a close end (22) and a long-range portion (23), and close end (22) and long-range portion (23) are distinctly configured with a proximal threads (24) and a long-range screw thread (25).The least radius of proximal threads (24) is in fact the maximum radius equaling long-range screw thread (25), and proximal threads (24) and long-range screw thread (25) have thread external form similar in fact and thread spacing, and proximal threads (24) is successional.When this nail (2) rotates into knochenbruch, proximal threads (24) and long-range screw thread (25) are distinctly engaged the zones of different of knochenbruch, and fixation of bone fragments knochenbruch is pressurizeed.
In sum, the nail used clinically at present mainly provides the function of fixation of bone fragments, although part nail also has the function to knochenbruch pressurization.For No. 2008/0234763rd, U.S. Patent Publication No., when the nail (2) disclosed by it rotates, proximal threads (24) and long-range screw thread (25) can rotate together and enter knochenbruch, and the pressurization function that this nail (2) is provided shows slightly not enough.In other words, for fear of the global design of the nail used clinically at present, when performing fracture operation, surgeon still must reset and pressurization to the knochenbruch of patient through open reset mode.Therefore, be really necessary to propose to improve for the nail used 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 connects knochenbruch and the relative displacement produced through different inter-module through different assembly, provides the function that knochenbruch resets and pressurizes.
For realizing aforementioned and/or other object, the present invention proposes a kind of nail, is containing following assemblies: a body of rod and a sleeve.The body of rod is formed with one first male thread and one second male thread respectively 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 relative to the protuberance of insertion section, wherein insertion section system is used for being inserted into a nearside knochenbruch, and insertion section has a through hole, the inwall of through hole is provided with the box thread of the second male thread of an occlusion body of rod, the insertion section articulating body of rod is made to be provided with the end of the second male thread, in order to make 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, a relative displacement can be formed between the insertion section of the body of rod and sleeve, nearside knochenbruch and distally knochenbruch are relatively moved.
Accompanying drawing explanation
Fig. 1 is an axonometric chart of the nail of the first embodiment.
Fig. 2 is the profile of nail along L-L hatching line of Fig. 1.
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 that the nail of Fig. 1 uses schematic diagram for one of fracture operation.
Fig. 7 is an axonometric chart of the nail of the second embodiment.
Fig. 8 to 10 is that the nail of Fig. 7 uses schematic diagram for one of fracture operation.
Figure 11 is the again use schematic diagram of nail for fracture operation of Fig. 7.
Figure 12 is an axonometric chart of the relevant front case that No. 200924702nd, Taiwan patent publication No. discloses.
Figure 13 is an axonometric chart of the relevant front case that No. 2008/0234763rd, U.S. Patent Publication No. discloses.
[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) most advanced and sophisticated
(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.
Detailed description of the invention
For above-mentioned and/or other object of the present invention, effect, feature can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below.
Please refer to the 1st, 2 figure, be illustrate the nail of the first preferred embodiment of the present invention, 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 relative to the second end of 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 hereafter discussed.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 for screwdriver and rotate the body of rod (3).
As shown in Figure 2, sleeve (4) has an insertion section (41) and relative to the protuberance (42) of insertion section (41).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 a screw thread and occlusion the second male thread (32), makes the second end of insertion section (41) the articulating body of rod (3).The outer wall of through hole (43) is more 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 for screwdriver and rotate protuberance (42).Protuberance (42) is more equipped with a connection piece (47).
As shown in Figure 2, the blocking hole (46) of protuberance (42) is the clamping slot (34) being communicated in the body of rod (3), and distinctly aim at for convenience of this two-screw bottle opener and rotate the protuberance (42) of the body of rod (3) and sleeve (4), the radial section of blocking hole (46) is long-pending is better that the radial section being greater than clamping slot (34) amasss.
As shown in Figure 2, the blocking hole (46) of protuberance (42) and the through hole (43) of insertion section (41) interconnect, and therefore the body of rod (3) may protrude from protuberance (42) through blocking hole (46) from blocking hole (46).For avoiding this situation to occur, the radial section of blocking hole (46) is long-pending is better the maximum radial sectional area being less than the second male thread (32), thus makes blocking hole (46) provide one to support only means.
Please refer to 3A, 3B figure, protuberance (42) is relative to insertion section (41), and the second end of insertion section (41) the articulating body of rod (3), therefore when protuberance (42) rotates, between the insertion section (41) of the body of rod (3) and sleeve (4), a relative displacement can be formed.
Please refer to Fig. 4 to 6, be illustrate the first better example nail for the ㄧ kind occupation mode of fracture operation.The same with known fracture operation process, surgeon must in advance in a nearside knochenbruch (A) and a distally knochenbruch (B) boring.
As shown in Figure 4, with the tip of the body of rod (3) (33) for initiating terminal, nail passes the hole of nearside knochenbruch (A) and distally knochenbruch (B) in order, and utilize one in the lump to stopping instrument (not shown) to the protuberance (42) stopping sleeve (4), allow the 3rd male thread (45) of insertion section (41) and protuberance (42) protrude from a surface of nearside knochenbruch (A).Then, a screwdriver 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, to distally knochenbruch (B) tapping, make first male thread (31) of the body of rod (3) be engaged the hole in distally knochenbruch (B) and be fixed on distally knochenbruch (B).After most advanced and sophisticated (33) are to distally knochenbruch (B) tapping, insertion section (41) is partly inserted into nearside knochenbruch (A), except the 3rd male thread (45) of insertion section (41) still protrudes from except 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 occlusion body of rod (3), makes the second end of insertion section (41) the articulating body of rod (3), through such structural relation, nearside knochenbruch (A) and distally knochenbruch (B) is connected.
As shown in Figure 5, relatively move for allowing nearside knochenbruch (A) and distally knochenbruch (B), and the function that nearside knochenbruch (A) and distally knochenbruch (B) reset and pressurize is provided, another screwdriver is aimed at the blocking hole (46) of protuberance (42) and rotates protuberance (42).Owing to only supporting, instrument is to the protuberance (42) stopping sleeve (4), and therefore when protuberance (42) rotates, insertion section (41) rotate in original place limitedly.Consequently, second male thread (32) of the body of rod (3) is mobile along the box thread (44) of insertion section (41), so form a relative displacement between the body of rod (3) and insertion section (41), nearside knochenbruch (A) and distally knochenbruch (B) is relatively moved.
As shown in Figure 6, after nearside knochenbruch (A) and distally knochenbruch (B) relatively move, removal stops instrument to stopping supporting of protuberance (42).Then, rotate protuberance (42), make the 3rd male thread (45) of insertion section (41) screw in nearside knochenbruch (A), be engaged the hole of nearside knochenbruch (A) and be fixed on nearside knochenbruch (A).Thus, nail will be fixed on nearside knochenbruch (A) and distally knochenbruch (B).
Please refer to Fig. 7, is illustrate the nail of the second preferred embodiment of the present invention.The nail of the second better example includes further: a head (6), and head (6) is the connector (47) being sleeved on protuberance (42) removably.For example, head (6) is the connector (47) being screwedly sleeved on protuberance (42).As shown in Figure 7, head (6) is more equipped with one the 4th male thread (61).
Please refer to Fig. 8 to 10, be illustrate the second better example nail 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), utilizing one to support only instrument (not shown), to stopping head (6), allows the 3rd male thread (45) of insertion section (41) and head (6) protrude from a surface of 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 except the surface of nearside knochenbruch (A), and head (6) protrudes from the surface of nearside knochenbruch (A) equally.
As shown in Figure 9, owing to only supporting, instrument is to stopping head (6), and therefore when head (6) rotates, insertion section (41) rotate in original place limitedly.Consequently, second male thread (32) of the body of rod (3) is mobile along the box thread (44) of insertion section (41), so form a relative displacement between the body of rod (3) and insertion section (41), nearside knochenbruch (A) and distally knochenbruch (B) is relatively moved.
As shown in Figure 10, after nearside knochenbruch (A) and distally knochenbruch (B) relatively move, removal stops instrument to stopping supporting of head (6).Then, rotation head (6), makes the 3rd male thread (45) of insertion section (41) screw in nearside knochenbruch (A), is engaged the hole of nearside knochenbruch (A) and is fixed on nearside knochenbruch (A).Thus, nail will be fixed on nearside knochenbruch (A) and distally knochenbruch (B).
Please refer to Figure 11, be illustrate the second better example nail for the another kind of occupation mode of fracture operation.Before the hole that nail passes nearside knochenbruch (A) and distally knochenbruch (B), a hone lamella (5) is resisted against the surface of nearside knochenbruch (A).Then, nail through the hole of hone lamella (5) and nearside knochenbruch (A), distally knochenbruch (B), makes the 4th male thread (61) of head (6) be bolted in hone lamella (5) in order.And, hone lamella (5) is also bonded to multiple nail 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 and support.
Comprehensive explanation, these better example systems allow nearside knochenbruch (A) and distally knochenbruch (B) relatively move through its structure, thus provide the function that nearside knochenbruch (A) and distally knochenbruch (B) reset and pressurize.On the other hand, these better examples can optionally remove head (6) after fracture operation or namely itself do not possess head (6), and therefore these better examples are mainly useful in the fracture operation at small-sized position, the fracture operation of such as elbow.
Although the present invention is exposed in preferred embodiment; so itself and be not used 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, therefore protection scope of the present invention is when being as the criterion depending on accompanying claim institute requestor.
Claims (9)
1. a nail is comprise:
One body of rod, be formed with one first male thread and one second male thread respectively in two opposed ends of this body of rod, wherein this first male thread system is for fixing to a distally knochenbruch; And
One sleeve, there is an insertion section and relative to the protuberance of 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 occlusion, this this body of rod of insertion section articulating is made to be provided with the end of this second male thread, connect in order to make this nearside knochenbruch and this distally knochenbruch, the outer wall of the through hole of this insertion section is more provided with one the 3rd male thread, after being used to this nearside knochenbruch and the relatively movement of this distally knochenbruch, be fixed on this nearside knochenbruch, and this protuberance system is used for protruding from a surface of this nearside knochenbruch, this protuberance is more equipped with a connection piece,
By this, when the protuberance of this sleeve rotates, a relative displacement can be formed between the insertion section of this body of rod and this sleeve, this nearside knochenbruch and this distally knochenbruch are relatively moved.
2. nail as claimed in claim 1, more comprise: a head, this head system is removably sleeved on the protuberance of this sleeve.
3. 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 being 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 only means, protrudes from this protuberance to avoid this body of rod from this blocking hole.
6. nail as claimed in claim 5, wherein the radial section in this blocking hole amasss is the smallest radial sectional area being less than this second male thread, supports only means to provide this.
7. nail as claimed in claim 4, wherein this body of rod is more provided with a clamping slot, and this clamping slot system is arranged at the end that is provided with this second male thread and is communicated in the blocking hole of this protuberance.
8. nail as claimed in claim 7, wherein the radial section in the blocking hole of this protuberance amasss is that the radial section of the clamping slot being greater than this body of rod amasss.
9. nail as claimed in claim 2, 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 |
|---|---|---|---|
| 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 CN103054642A (en) | 2013-04-24 |
| CN103054642B true 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 (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 |
Families Citing this family (5)
| 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 |
| US10531905B2 (en) | 2016-04-19 | 2020-01-14 | Globus Medical, Inc. | Implantable compression screws |
| US11278335B2 (en) | 2016-04-19 | 2022-03-22 | Globus Medical, Inc. | Implantable compression screws |
| US11957393B2 (en) | 2020-05-12 | 2024-04-16 | Globus Medical, Inc. | Locking variable length compression screw |
| CN112155701B (en) * | 2020-10-10 | 2023-03-28 | 江山市人民医院 | Adjustable screw for calcaneus |
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 |
-
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 (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103054642A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103054642B (en) | Detachable resetting compression bone nail | |
| US10292744B2 (en) | Bone screw and self-retaining driver | |
| JP6188862B2 (en) | Implant system for bone fixation | |
| CN103179912B (en) | Low profile for bone anchor locking member extends attachment | |
| CN101883532B (en) | Distal tibia plating system | |
| US9247946B2 (en) | Method of using a drill sleeve | |
| JP2018149273A (en) | Systems and methods for intramedullary nail implantation | |
| CA2847608C (en) | Polyaxial locking hole arrangement | |
| US20160287300A1 (en) | Retrograded hammertoe compression screw implant and methods of implanting the same | |
| CN104736081A (en) | Bone fixation system | |
| WO2018053388A1 (en) | Bone anchor, instruments, and methods for use | |
| WO2015052841A1 (en) | Device for osteosynthesis and osteosynthesis | |
| EP3328298B1 (en) | System for connecting a connecting device, in particular a distractor, to a bone | |
| CN105848598B (en) | Intramedullary devices for middle section fracture of clavicle | |
| CN104519833A (en) | Orthopaedic implant with dynamic trans-fixation slot | |
| US20090264884A1 (en) | Apparatus for External Fixation of the Pelvic Ring | |
| US11399964B2 (en) | Operating instrument and method for spinal implant | |
| CN103654935A (en) | Bone peg with reposition and pressurization functions | |
| JP2020062398A (en) | Systems and methods for intramedullary nail implantation | |
| CN203576617U (en) | Distal tibia inner side locking plate | |
| CN217118557U (en) | Screw seat and pedicle screw with same | |
| TWI500409B (en) | Reduction and compression bone screw | |
| CN219000513U (en) | Modular series of pedicle screws | |
| CN103948365A (en) | Working channel system of novel spinal endoscope | |
| CN103690230A (en) | Small incision bone-holder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |