CN1184930C - Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail - Google Patents
Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail Download PDFInfo
- Publication number
- CN1184930C CN1184930C CNB991231880A CN99123188A CN1184930C CN 1184930 C CN1184930 C CN 1184930C CN B991231880 A CNB991231880 A CN B991231880A CN 99123188 A CN99123188 A CN 99123188A CN 1184930 C CN1184930 C CN 1184930C
- Authority
- CN
- China
- Prior art keywords
- sighting device
- marrow nail
- near end
- aiming
- bone marrow
- 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
Images
Abstract
The present invention relates to an aiming appliance needing no near end and far end positioning of an X-ray marrow nail. Aiming devices of a near end and a far end on the aiming appliance are respectively composed of a U-shaped component; a widened supporting leg of the U-shaped component is provided with a pilot hole; on the aiming appliance, a marrow nail is fixedly connected with the aiming device of a near end by a connecting plate, and the aiming device of a near end us connected with the aiming device of a far end by a rotatable and adjustable space retainer; on the aiming appliance, a space between the marrow nail and the aiming device of a far end is adjusted by a space element in this way: a central axis of the pilot hole in the aiming device is concentric with a central axis of a groove or a hole related to the pilot hole in the marrow nail. The present invention is characterized in that the space retainer (2) is composed of two sleeve type components (8, 9) correspondingly moving to change a length; the supporting leg of the U-shaped aiming device (5) of a near end and the supporting leg of the U-shaped aiming device (4) of a far end are connected by a rigid connecting element (12) on a plane of the central axes of the pilot hole (10) and the groove (11) on the marrow nail; the connecting element rotatablely and respectively supports on the supporting legs of the aiming devices (4, 5) of a near end and a far end; the space retainer (2) is vertical to the plane of the central axes of the pilot hole (10) and the groove (11) of the marrow nail by a hinge (3) and is rotatablely arranged on the aiming device (5) for a near end.
Description
Technical field
The present invention relates to a kind of be used to the need not near end of X ray and the aiming appliance of body end far away location bone marrow nail.
Background technology
For fear of to the spurious radiation of operative doctor load, it is well-known being used for placing at skeleton that the sighting device of bolt of bone marrow nail and bone marrow nail be rigidly connected.Sighting device has pilot hole, and not only skeleton boring but also bolt can be accurately concentric with the profile of boring on the bone marrow nail and groove by pilot hole.
The prior art of today is to be provided with a kind of additional fixedly connectedly between near end and body end aiming appliance far away, and is that light is fixedly connected with bone marrow nail and must aim at the independent aiming appliance that body end dog screw far away is set by means of the observation under the X ray help with the near end aiming appliance in the past.
Provide one to be used for the auxiliary guide rail that has the aperture that leads that the skeleton that will be set up bores according to DE 42 40 277 A1, this guide rail is screwed in by screw thread on the end of near end bone marrow nail, in auxiliary guide rail with a determining deviation ground, with bone marrow nail be provided with the guiding aperture similarly.
By means of steady pin, for example Na Shi wire rod (Kirschnerdraht) is executed in the Kiel to auxiliary guide rail at body end guiding aperture far away place, also can be by means of additional overlap joint bow, its position of skeletal fixation relatively.
DE 296 08 071 U1 have fixedly done further improvement to body end sighting device far away, wherein for vertically aiming at guide rail a spacing keeper is set in addition, make the relative near end sighting device of body end sighting device far away keep a determining deviation by this aiming guide rail, utilize the spacing keeper to make to be fixed on the bore gauge on the aiming guide rail to aim at the boring on the bone marrow nail.
Finished a sight device by the applicant, the sighting device of near end and body end far away is made up of U-shaped parts respectively on this aiming appliance, wherein be provided with pilot hole on the widened section of U-shaped parts supporting leg, bone marrow nail is fixedlyed connected with the near end sighting device by a fishplate bar and be provided with an adjustable spacing keeper between near end and body end sighting device far away.Hold on the pilot hole of body end sighting device far away and the bone marrow nail that position that the groove of bolt coordinates mutually can be adjusted by one and lockable distant element guarantees, by distant element being leaned against on the bone marrow nail holing on the skeleton on the final position.
And should realize by of at first settling thinner steady pin to pass in the boring according to the proper alignment of the near end boring of DE 42 40 277 A1 on auxiliary guide rail and bone marrow nail, then fix other and be anchored on steady pin on the skeleton, a distant element that is fixed on the body end aiming appliance far away is set, distant element is as the device that leans against on the bone marrow nail, and this is more reliable for the proper alignment that keeps associated orifices.
But such problem appears in above-mentioned last solution: if settle on the skeleton of not punching, bone marrow nail can be to front or back side direction bending, body end sighting device 4 far away passes through distant element 1 (see figure 1) microlitre together, and rotates by the hinge 3 of spacing keeper 2 near end sighting device 5.
Draw thus, the center of rotation of bone marrow nail 6 is located substantially on drawbar warpage 7 places, so the center of rotation of bone marrow nail 6 and spacing keeper 2 lays respectively in two planes this space on the length of distant element 1, two planes.
The numerical value of the central axis of the associated groove when as seen from Figure 2, the drill center axis runout on the body end aiming appliance far away does not have deflection with angle [alpha] deflection the time on the bone marrow nail is the x2 that is distal to place, bone marrow nail end.This will cause, and under the situation of the bone marrow nail of crooked (rotation), groove can not be concentric with bolt again.
Summary of the invention
Task of the present invention is to provide a kind of aiming appliance, and this aiming appliance is configured to that body end sighting device far away comes to rotate together like this under the situation of the bone marrow nail of crooked (rotations), makes relevant boring and the groove on the bone marrow nail on the sighting device keep aliging.
According to the present invention, a kind of be used to the need not near end of X ray and the aiming appliance of body end far away location bone marrow nail are proposed, on this aiming appliance, the sighting device of near end and body end far away is made up of U-shaped parts respectively, on the supporting leg that the U-shaped parts are widened, be provided with pilot hole, on this aiming appliance, bone marrow nail is fixedlyed connected with the near end sighting device by a fishplate bar, the near end sighting device turns by one and adjustable spacing keeper is connected with body end sighting device far away, on aiming appliance, bone marrow nail is adjusted by distant element like this with the spacing of body end sighting device far away, the relevant groove with pilot hole on the central axis that makes pilot hole on the sighting device and the bone marrow nail or the central axis in hole are concentric, it is characterized in that, the spacing keeper is changed the parts of length and is formed by two telescopic relatively moving, the supporting leg of U-shaped near end sighting device is connected by an inflexible Connection Element on the plane of the central axis of pilot hole and bone marrow nail groove with the supporting leg of U-shaped body end far away sighting device, Connection Element is bearing in respectively on the supporting leg of U-shaped near end and body end sighting device far away rotationally, and the spacing keeper is arranged on the near end sighting device rotationally by the plane of a hinge perpendicular to the central axis of pilot hole and bone marrow nail groove.
Description of drawings
Set forth the present invention by embodiment.
Diagram provides,
Fig. 1 is corresponding to aiming appliance of the present invention.
Fig. 2 is that the length relation and the position of the bone marrow nail of not crooked and crooked (rotation) concerns sketch.
The specific embodiment
Make the center of rotation of body end sighting device 4 far away be positioned at the plane of the central axis of pilot hole 10 and bone marrow nail groove 11 by Connection Element 12.There is not this important will cause following result according to measure of the present invention.
When owing to the reeve skeleton bone marrow nail 6 being rotated limitedly at drawbar warpage 7 places, body end sighting device 4 far away is by distant element 1 microlitre.As shown in Figure 2, angle of rotation α is depended in the skew of the upright projection of spacing keeper 2 ends, therefore pilot hole 10 be projected in the end that is distal to bone marrow nail 6 on the body end sighting device 4 far away, the central axis of the groove 11 on the central axis of the pilot hole 10 on the body end sighting device 4 far away and the relevant bone marrow nail is no longer concentric.
(see figure 1) in according to solution of the present invention, body end sighting device 4 far away rotates in same plane with bone marrow nail 6 by the Connection Element 12 that is rotatably supported near end and the body end sighting device U-shaped parts supporting leg far away, promptly keeps the concentric of central axis.In this rotated, spacing keeper 2 shortened by the parts 9 telescopic parts 8 that slip into of spacing keeper.
Constitute by flat steel band according to Connection Element 12 of the present invention, and near end and body end far away have hole 13,13 '.
Consider the position of bone marrow nail groove 11 positive and negative, pilot hole is located at aiming appliance 4, in two planes of 5U shape parts supporting leg.
Near end and body end aiming appliance 4 far away, each spacing between 5 is adjustable, for example be shelves, promptly in the spacing of two boring 13 alternate 10mm of the near end of Connection Element 12, in the spacing of a plurality of borings 13 ' alternate 20mm of Connection Element 12 body ends far away with 10mm.
The implication of each labelling is as follows among Fig. 2:
A=aiming appliance inflexion point;
B=follows closely inflexion point;
D=not deflection period apart from keeper length;
B=follows closely section;
The length of x2=leveling;
Spacing keeper length after the x1=deflection;
The spacing given position (Abstandgeber-position) of c=when pin joint A+B place zero deflection;
The spacing given position (prior art) of c '=after pin joint A+B place's deflection;
C "=spacing given position (the present invention) after pin joint A+B place's deflection and correct length balance.
Claims (4)
1. one kind is used to need not the near end of X ray and the aiming appliance of body end far away location bone marrow nail, on this aiming appliance, the sighting device of near end and body end far away is made up of U-shaped parts respectively, on the supporting leg that the U-shaped parts are widened, be provided with pilot hole, on this aiming appliance, bone marrow nail is fixedlyed connected with the near end sighting device by a fishplate bar, the near end sighting device turns by one and adjustable spacing keeper is connected with body end sighting device far away, on aiming appliance, bone marrow nail is adjusted by distant element like this with the spacing of body end sighting device far away, the relevant groove with pilot hole on the central axis that makes pilot hole on the sighting device and the bone marrow nail or the central axis in hole are concentric
It is characterized in that, spacing keeper (2) is changed the parts (8 of length by two telescopic relatively moving, 9) form, the supporting leg of the supporting leg of U-shaped near end sighting device (5) and U-shaped body end far away sighting device (4) is connected by an inflexible Connection Element (12) on the plane of the central axis of pilot hole (10) and bone marrow nail groove (11), Connection Element is bearing in U-shaped near end and body end sighting device (4 far away rotationally respectively, 5) on the supporting leg, and spacing keeper (2) is arranged on the near end sighting device (5) rotationally by the plane of a hinge (3) perpendicular to the central axis of pilot hole (10) and bone marrow nail groove (11).
2. aiming appliance as claimed in claim 1, it is characterized by, Connection Element (12) is a flat steel band, which is provided with and near end and body end sighting device (4 far away, the corresponding boring (13 of the spacing of the pilot hole 5) (10), 13 '), and one organized sheath (14) to pass boring (13,13 ') and pilot hole (10).
3. aiming appliance as claimed in claim 2, it is characterized by, in order to realize changing spacing, be provided with the boring that several spacings are 20mm (13 ') at the other end of Connection Element (12) in the boring (13) that to be provided with two spacings be 10mm of an end of Connection Element (12) with the distance of determining.
4. the described aiming appliance of one of claim as described above, it is characterized by, consider the front and position reverse side of bone marrow nail groove (11), the pilot hole (10) on the U-shaped parts supporting leg of near end and body end sighting device (4,5) far away is arranged on two planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991231880A CN1184930C (en) | 1999-10-27 | 1999-10-27 | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991231880A CN1184930C (en) | 1999-10-27 | 1999-10-27 | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1293947A CN1293947A (en) | 2001-05-09 |
| CN1184930C true CN1184930C (en) | 2005-01-19 |
Family
ID=5282815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991231880A Expired - Fee Related CN1184930C (en) | 1999-10-27 | 1999-10-27 | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1184930C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2775602A1 (en) * | 2009-10-15 | 2011-04-21 | Synthes Usa, Llc | Protection sleeve retention device |
| CN108523983A (en) * | 2018-03-22 | 2018-09-14 | 中国人民解放军第七五医院 | A kind of blocking nail merging auxiliary device |
| CN109009399B (en) * | 2018-06-20 | 2020-12-11 | 陈聚伍 | Accurate positioner of hollow nail of femoral neck fracture |
| CN114376702A (en) * | 2020-10-19 | 2022-04-22 | 江苏国立医疗器械有限公司 | Intramedullary nail aiming frame |
-
1999
- 1999-10-27 CN CNB991231880A patent/CN1184930C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1293947A (en) | 2001-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1130168C (en) | Orthopaedic apparatus, particularly for surgical correction of bone | |
| CN101002696B (en) | Bone reposition device and system | |
| EP1678468B1 (en) | Method for checking or calibrating the angle-dependent alignment of a high-precision test-piece | |
| CN1267062C (en) | Orthopaedic device for gradual correction of limbs | |
| US4690365A (en) | Jack stud | |
| DE2515944A1 (en) | METHOD AND DEVICE FOR MEASURING DIRECTION | |
| CN1184930C (en) | Aiming appliance of needing no near end and distance end positioning of x-ray bone marrow nail | |
| CN102947061A (en) | A parallel-kinematical machine with gimbal holders | |
| DE10048097A1 (en) | The coordinate | |
| CN1084382A (en) | The centering device in the hole of intramedullary nail | |
| CN1191320A (en) | Multi-dimensional adjustable working platform | |
| DE19716304C1 (en) | Geodetic device for plumbline, theodolite or tachymeter | |
| CN200963183Y (en) | Sight for marrow nail | |
| CN1021125C (en) | Means for supporting gaging device such as dial bore gage during setting thereof | |
| DE102011055118A1 (en) | Method for determining the orientation of two waves connected by two universal joints and a third wave in the plane of the three waves | |
| US3911589A (en) | Adjustable support base for a field measurement device | |
| GB2218205A (en) | Device for defining a profile | |
| CN114469306A (en) | Multidimensional sighting device for femoral neck | |
| EP0899536B1 (en) | Coordinate measuring apparatus or working machine | |
| CN107607140A (en) | Measuring instrument adjusts platform | |
| CN210228298U (en) | Visual intramedullary nail far-end aiming device | |
| CN2525958Y (en) | Position compensating mechanism for sighting device of intramedullary nail | |
| CN212592387U (en) | Visual intramedullary nail far-end aiming device | |
| CN113262031B (en) | Tibial intramedullary nail distal hole aiming gauge and use method thereof | |
| CN214805116U (en) | Orthopedics drilling sight |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Publication of application | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050119 Termination date: 20111027 |