CN2704325Y - Locked intramedullary nail and its positioner - Google Patents
Locked intramedullary nail and its positioner Download PDFInfo
- Publication number
- CN2704325Y CN2704325Y CN 200420036229 CN200420036229U CN2704325Y CN 2704325 Y CN2704325 Y CN 2704325Y CN 200420036229 CN200420036229 CN 200420036229 CN 200420036229 U CN200420036229 U CN 200420036229U CN 2704325 Y CN2704325 Y CN 2704325Y
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- CN
- China
- Prior art keywords
- registration arm
- screw
- positioner
- intramedullary pin
- positioning screw
- 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
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Abstract
The utility model discloses a locked intramedullary nail and its positioner, the utility model is characterized in that a positioning screw hole is arranged between the two cross locking holes on the far-end of the intramedullary nail. The positioner is provided with a corresponding positioning screw rod. The positioning arm and the sighting disk on the positioner are provided with scale. The positioning arm can be accommodated in left-right direction and can front-back swing. The sighting disk can universally rotate to make the positioning screw rod can be voluntary accommodated, which assures that no matter the movement of the intramedullary nail in the medullary cavity, the positioning screw rod can find the positioning screw hole easily after a slight adjustment on the original position and screw in to locating. The utility model solves the problems of finding the far-end cross locking holes of intramedullary nail difficulty for doctors.
Description
Technical field:
This utility model relates to a kind of intramedullary nail with lock and positioner thereof, belongs to the medical apparatus and instruments of fixed length tubular bone in the bone surgery.
Background technology:
The fixed length tubular bone generally is that intramedullary pin is placed the lockhole that by localizer self-locking nail is passed exactly intramedullary pin in the medullary cavity again in bone surgery at present, screw thread is fixed on the bone then, make the bone that fractures thus, can well be resetted and reliable fixing, after after a while, rehabilitate, in this operating process the doctor to feel the most difficult be exactly penetrating of intra medullary nail far-end pinning.Though intramedullary pin is not before entering medullary cavity, the doctor mixes up by the relative position of localizer with self-locking nail and intramedullary pin, but after intramedullary pin inserts bone, deformation and displacement take place in far-end easily, self-locking nail is difficult to insert by the position that mixes up in advance, this is because the position adjustments of present its dial sights of localizer has only a direction (along registration arm straight line chute glide direction), its distal orientation can change to some extent after this intramedullary pin entered pulp cavity, this moment, dial sights was not enough along the registration arm chute promptly along former axially the moving of intramedullary pin still, and self-locking nail is difficult to seek the lockhole of intramedullary pin.
The utility model content:
The purpose of this utility model is to provide a kind of intramedullary nail with lock and positioner thereof that can quick and precisely find the distal locking hole.
The technical solution of the utility model is: a kind of intramedullary nail with lock and positioner thereof, wherein intramedullary pin has two near-end interlocking holes and the two distal locking holes that are used to wear self-locking nail, positioner has handle, registration arm, dial sights, described handle one end is connected with intramedullary pin, the other end is connected with registration arm, and dial sights is installed on the registration arm; One location screw is arranged between two remote stomidiums of described intramedullary pin; The end that described handle is connected with registration arm has one to be used to regulate the arcuate groove of registration arm angle, on this groove scale is arranged; Described registration arm by a spherical zone circle, one the chute bar is affixed forms, one screens piece is arranged on the chute bar, certain tight screw is arranged on the screens piece, also be provided with scale on the chute bar, disjunction mark correspondingly is located on the screens piece, and registration arm is connected with the handle extension type by its chute bar; Described dial sights is a cydariform, be embedded in rotationally in the spherical zone circle of registration arm, two self-locking nail pilot holes, a positioning screw pilot hole are arranged on the dial sights, two remote stomidiums and the positioning screw hole with intramedullary pin is corresponding respectively for they, the dial sights sphere has scale, and the spherical zone circle is provided with the fixed clamping screw that acts on dial sights and the graduated disjunction mark of indication dial sights is arranged.
For the bone axial pressure being made it coincide well, the link of handle and intramedullary pin is a hollow pipe, and this sleeve pipe appearance is provided with screw thread and nut.
As an adnexa of the present utility model, other has a longitudinal register frame, and this bottom is useful on this is placed in installation foot on the described positioner, and top is useful on the vane of vertical pinning being installed or being stopped screw.
Because the end that this utility model handle is connected with registration arm is provided with arcuate groove, the angle of registration arm can be regulated, and registration arm can be regulated dial sights by flexible about its chute bar accordingly simultaneously, and dial sights is embedded in the spherical zone circle, but its angle all directions are regulated.Remember the dial sights position that mixes up in advance when us, just can guarantee no matter what kind of displacement has taken place in pulp cavity intramedullary pin, dial sights can be done slightly to regulate on the basis of former allocation and just can make positioning screw be easy to find the positioning screw hole of intramedullary pin (far-end) and screw-in wherein to tighten up the location.When the position of intramedullary pin find accurately determine after, again self-locking nail is penetrated in the interlocking hole of intra medullary nail far-end and then is connected on the bone, unload positioning screw then and get final product.
Description of drawings:
Fig. 1 is a front view of the present utility model.
Fig. 2 is a vertical view of the present utility model.
Fig. 3 is this utility model positioning screw and telescopic assembling sketch map.
Fig. 4 is this utility model attachment device longitudinal register frame front view.
Fig. 5 is the left view at Fig. 4.
Fig. 6 is that A at Fig. 4 is to view.
The specific embodiment:
From Fig. 1 and Fig. 2 as can be seen:
Intramedullary pin 1 of the present utility model is basic identical with existing intramedullary pin structure, and proximal-distal all has interlocking hole 11 to be used to wear self-locking nail, but far-end has also increased by a location screw 12.
This utility model positioner then is made up of handle 2, registration arm 3, dial sights 4.Handle 2 basic one-tenth L types, the one end is a hollow pipe 21 of tyre screw thread pair, connecting screw rod 7 passes this hollow pipe 21 makes handle 2 be connected with intramedullary pin 1, the other end of handle 2 has an arcuate groove 23, be used for installing and regulating registration arm 3, hollow pipe 21 outer screw thread pairs are mainly used in the tension intramedullary pin, the bone that fractures is played the axial pressure effect make it to coincide better.Registration arm 3 is made up of a chute bar 31 and spherical zone circle 32, and registration arm 3 is connected with handle 2 by coupling bar 5 fixed clamping screws, 8 screens pieces 10 and connecting bolt 6 and locatees, and makes registration arm 3 with respect to handle 2 scalable convertible angles.Dial sights 4 its end faces that are embedded in the spherical zone circle 32 are provided with two self-locking nail pilot holes 41, a positioning screw pilot hole 42, dial sights 4 can be done the rotation of any direction in spherical zone circle 32, thereby the self-locking nail that is installed in these two kinds of pilot holes, the angle of positioning screw 9 are changed, make it corresponding with interlocking hole 11 and positioning screw hole 12 on the intramedullary pin, dial sights 4 spheres are provided with scale, corresponding disjunction mark is arranged on the spherical zone circle 32, read the scale on the dial sights 4 of its indication by this disjunction mark, learn the relative position of the two.Before intramedullary pin does not enter pulp cavity, earlier positioning screw 9 is penetrated the positioning screw pilot hole 42 of dial sights 4, regulating registration arm 3 and dial sights 4 then makes positioning screw 9 screw in intramedullary pin, first-class positioning screw 9 and pinning inserted link, after locating, connecting bolt 6 and fixed clamping screw 8 are tightened, remembered the relative position of dial sights 4 and spherical zone circle 32, again positioning screw 9 and pinning inserted link are withdrawed from intramedullary pin.
As can be seen from Figure 3, all there is screw thread at positioning screw 9 two ends, and front end screw thread 91 is used for cooperating with intramedullary pin, and rear end screw thread 92 is used to the intramedullary pin that stretches, and make the bone that fractures better to line.Near the limited impression 93 that also demonstrates of rear end screw thread 92, this groove is used to install additional member longitudinal register frame.
This utility model before use, earlier in external installation and adjust, first-class positioning screw 9 and pinning inserted link, record chute bar 31 at this moment, after the scale value of arcuate groove 23 and dial sights 4 spheres, pull down positioning screw 9 and pinning inserted link again, take off registration arm 3 and dial sights 4, carry out next step and operate in vivo, insert intramedullary needle to correct position, load onto registration arm 3 and dial sights 4 again, 42 places make otch in the positioning screw pilot hole, after entering the cortical bone surface, boring, probe is surveyed the position of intramedullary pin positioning screw hole 9, according to its position difference, regulate arcuate groove 23, and this boring is extended by this front or rear direction abrasive drilling that need regulate, will reach accurate location again with the abrasive drilling head, insert positioning screw 9 then, unclamp the locking nail on the spherical zone circle 32, make dial sights 4 rotating, under this state, screw in positioning screw 9 in the positioning screw hole 12 of intramedullary pin smoothly, after again dial sights 4 being threaded to prior setting scale, in both sides self-locking nail pilot hole 41 otch first-class two pieces of distal locking nails of holing respectively.Behind first-class distal locking nail, pull down positioning screw 9, tighten the nut 22 on the handle 2 again, make it the epiphysis of conflicting, the intramedullary pin rollback moves and plays the axial pressure effect, and the near-end pinning is installed at last again.
Under certain situation about needing, can select this attachment device of longitudinal register frame for use, be enclosed within on the limited impression 93 and both sides pinning pilot sleeve of positioning screw, the other vertical pinning of the far-end that stops screw or intramedullary pin (being directed to the intramedullary pin of the vertical lockhole of far-end) of intramedullary pin be installed by the vane 110 of longitudinal register frame.Simultaneously, the rear end screw thread top nut of rotation positioning screw makes it and telescopic position relative motion, to regulate the position of intramedullary pin in medullary cavity, makes it good to line.
Claims (3)
1 one kinds of intramedullary nail with lock and positioner thereof, wherein intramedullary pin (1) has two near-end interlocking holes and the two distal locking holes (11) that are used to wear self-locking nail, positioner has handle (2), registration arm (3), dial sights (4), described handle (2) one ends are connected with intramedullary pin (1), the other end is connected with registration arm (3), dial sights (4) is installed on the registration arm (3), it is characterized in that: a location screw (12) is arranged between two remote stomidiums of described intramedullary pin (1); The end that described handle (2) is connected with registration arm (3) has one to be used to regulate the arcuate groove (23) of registration arm (3) angle, on this groove scale is arranged; Described registration arm (3) is by a spherical zone circle (32), affixed the forming of one chute bar (31), one screens piece (10) is arranged on the chute bar (31), certain tight screw (8) is arranged on the screens piece, the chute bar also is provided with scale on (31), disjunction mark correspondingly is located on the screens piece (10), registration arm (3) is connected with handle (2) extension type by its chute bar (31), described dial sights (4) is a cydariform, be embedded in rotationally in the spherical zone circle (32) of registration arm, two self-locking nail pilot holes (41) are arranged on the dial sights (4), a positioning screw pilot hole (42), two distal locking holes (11) and the positioning screw hole (12) with intramedullary pin (1) is corresponding respectively for they, dial sights (4) sphere has scale, and spherical zone circle (32) is provided with the fixed clamping screw that acts on dial sights and the graduated disjunction mark of indication dial sights is arranged.
2 intramedullary nail with lock according to claim 1 and positioners thereof is characterized in that: handle (2) is a hollow pipe (21) with the link of intramedullary pin (1), and this pipe appearance is provided with screw thread and nut (22).
3 intramedullary nail with lock according to claim 1 and 2 and positioners thereof, it is characterized in that: other has a longitudinal register frame, this bottom is useful on this is placed in installation foot (100) on the described positioner, and top is useful on the vane (110) of vertical pinning being installed or being stopped screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036229 CN2704325Y (en) | 2004-06-18 | 2004-06-18 | Locked intramedullary nail and its positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036229 CN2704325Y (en) | 2004-06-18 | 2004-06-18 | Locked intramedullary nail and its positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704325Y true CN2704325Y (en) | 2005-06-15 |
Family
ID=34773472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036229 Expired - Fee Related CN2704325Y (en) | 2004-06-18 | 2004-06-18 | Locked intramedullary nail and its positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704325Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136086A1 (en) * | 2005-06-20 | 2006-12-28 | Yijing Yang | An intramedullary nail collimator |
| CN104146756A (en) * | 2014-08-29 | 2014-11-19 | 南华大学 | Minimally-invasive lumbosacral vertebrae axial fusion inner fixing system with lock |
| CN105147378A (en) * | 2015-06-11 | 2015-12-16 | 张英泽 | Device for pulling fibula on two sides close after fibula segment osteotomy |
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
-
2004
- 2004-06-18 CN CN 200420036229 patent/CN2704325Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006136086A1 (en) * | 2005-06-20 | 2006-12-28 | Yijing Yang | An intramedullary nail collimator |
| CN104146756A (en) * | 2014-08-29 | 2014-11-19 | 南华大学 | Minimally-invasive lumbosacral vertebrae axial fusion inner fixing system with lock |
| CN104146756B (en) * | 2014-08-29 | 2017-08-29 | 南华大学 | A kind of locking axially fusion internal fixation system of minimally invasive lumbosacral spine |
| CN105147378A (en) * | 2015-06-11 | 2015-12-16 | 张英泽 | Device for pulling fibula on two sides close after fibula segment osteotomy |
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN108742811B (en) * | 2018-07-09 | 2020-06-19 | 常州华森医疗器械有限公司 | Anti-rotation intramedullary nail suite |
| CN110974390A (en) * | 2019-12-11 | 2020-04-10 | 常州市图尔迈医疗器械有限公司 | Mounting rack for accurately positioning intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |