CN201131801Y - Femoral bone central line locater - Google Patents
Femoral bone central line locater Download PDFInfo
- Publication number
- CN201131801Y CN201131801Y CNU2007201988555U CN200720198855U CN201131801Y CN 201131801 Y CN201131801 Y CN 201131801Y CN U2007201988555 U CNU2007201988555 U CN U2007201988555U CN 200720198855 U CN200720198855 U CN 200720198855U CN 201131801 Y CN201131801 Y CN 201131801Y
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- CN
- China
- Prior art keywords
- positioning
- sleeve
- guiding
- femur
- centrage
- 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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- Prostheses (AREA)
Abstract
The utility model relates to a thigh bone central line positioner, which matched with a drill bit with a progressively increased diameter for use. The thigh bone central line positioner comprises a positioning and guiding sleeve and a sleeve handle, the sleeve handle is fixedly connected with the top part of the positioning and guiding sleeve, a through length positioning hole is arranged on the positioning and guiding sleeve along the axial direction of the positioning and guiding sleeve, and the axial line of the positioning hole is paralleled with the axial line of the positioning and guiding sleeve. The sleeve body of the positioning and guiding sleeve presents a conical curved surface, the aperture of the positioning hole is consistently maintained along the length direction of the positioning and guiding sleeve, the positioning hole is deviated from the central axial line of the positioning and guiding sleeve and is deviated to the rear and outside direction at the top of the sleeve. The sleeve handle is arranged with an inclination angle of 35 to 45 degrees with respect to the positioning and guiding sleeve and generally presents an L shape. By adopting the thigh bone central line positioner, clinical doctor can be effectively assisted to find the thigh bone central line during the artificial total hip arthrosis replacement and reconditioning operation, to rightly prepare the thigh bone, the operation time and the recovery time can be reduced, the difficulty degree of the operation is reduced, and the optimum effect of the operation is ensured.
Description
Technical field
This utility model is relevant with the revision procedure of artificial full hip-joint replacement (THA), relates to the auxiliary medical apparatus of determining the femoral bone cavitas medullaris centrage in the total hip replacement overhaul technology, specifically, is a kind of femur centrage localizer.
Background technology
Accurately finding the femoral bone cavitas medullaris centrage, thereby correctly prepare femoral bone cavitas medullaris, is the precondition that artificial full hip-joint replacement revision procedure (being THA) is succeedd.
Clinical practice for many years shows, in the existing artificial full hip-joint replacement overhaul technology (THA), the major reason that the femoral bone cavitas medullaris centrage is difficult to accurately find is, after originally the prosthese of failure takes out, formed a hardened base at original prosthese far-end, if open femoral bone cavitas medullaris when the doctor still performs the operation as first THA, tend to that prosthese caused via preparing pulp cavity along original failure, so then can't be ready to femoral bone cavitas medullaris for new prosthese, that is to say that new prosthese can't implant, can have a strong impact on the effect of THA revision procedure.As shown in Figure 3, thisly continue to use originally, when serious, cause the femur perforation possibly, cause difficulty and patient's wound increase at double, the greatly effect of influence operation and the rehabilitation of patient's postoperative of performing the operation via the way of preparing pulp cavity.
Therefore, how to find the femoral bone cavitas medullaris centrage just to become a puzzlement orthopedist very thorny difficult medical problem for many years quickly and accurately.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of femur centrage localizer is provided, be used for the artificial full hip-joint replacement overhaul technology, assist clinicians finds the femoral bone cavitas medullaris centrage fast in the artificial full-hip joint overhaul technology effectively, thereby, prepare femoral bone cavitas medullaris exactly.
To achieve these goals, this utility model has adopted following technical scheme:
Femur centrage localizer, the supporting use of drill bit with diameter increases step by step is characterized in that, comprises positioning and guiding sleeve, sleeve handle;
The telescopic top of described sleeve handle and positioning and guiding is fixedly linked;
It is axially arranged with an elongated locating hole described positioning and guiding sleeve upper edge, and the axis of this locating hole is parallel with the telescopic axis of positioning and guiding.
Above-mentioned femur centrage localizer, wherein,
The curved surface that the telescopic stack shell of described positioning and guiding is tapered.
The aperture of described locating hole is consistent up and down along the telescopic length direction of positioning and guiding.
Described locating hole departs from the telescopic central axis of positioning and guiding.
Back partially lateral direction departs from described locating hole towards the sleeve top.
Described sleeve handle is inclined to set with respect to the telescopic end face of positioning and guiding, and the profile of sleeve handle is the L shape substantially.
Described sleeve handle is about 35 °～45 ° with respect to the angle of inclination of positioning and guiding sleeve end face.
Owing to adopted above-mentioned technical scheme, this utility model compared with prior art has following advantage and good effect:
Utilize positioning and guiding sleeve and the assosting effect that is fixedly connected on the sleeve position fixing knob at this positioning and guiding sleeve top on this utility model femur centrage localizer, assist clinicians finds the femoral bone cavitas medullaris centrage quickly and accurately in the THA revision procedure effectively, significantly improves the accuracy that femur is prepared.
Simultaneously, utilize this utility model thoroughly to change only to get through by rule of thumb the rough way of distal femur sclerosis base in the past hastily, can also obviously reduce in the art and repeatedly have an X-rayed the trouble that increases operating time because of need.
Therefore say that this utility model femur centrage localizer provides simple, a practical medical assistance apparatus for accurately preparing femoral bone cavitas medullaris in the THA overhaul technology.
Description of drawings
By following examples and in conjunction with the description of its accompanying drawing, can further understand purpose, specific structural features and the advantage of its invention.In the accompanying drawing,
Fig. 1 is the contour structures sketch map of this utility model femur centrage localizer;
Fig. 2 is the telescopic perspective view of positioning and guiding among Fig. 1;
Fig. 3 is the sectional structure sketch map of Fig. 2;
Fig. 4 is the plan structure sketch map of Fig. 2;
Fig. 5 directly uses drill bit in the THA overhaul technology in the prior art and the structural representation that causes the femur perforation;
Fig. 6 is the structural representation that this utility model femur centrage localizer is used for the THA overhaul technology.
The specific embodiment
Referring to Fig. 1～4, cooperate referring to Fig. 5,6 this utility model femur centrage localizers, with the drill bit 3 supporting uses that diameter increases step by step, comprise a location pilot sleeve 1, the top of this positioning and guiding sleeve 1 is fixedly linked and one sleeve handle 2 is arranged.It is axially arranged with an elongated locating hole 11 positioning and guiding sleeve 1 upper edge, and the axis of this locating hole 11 is parallel with the axis of positioning and guiding sleeve 1.
Because the proximal diameter of human femur under loading pulp cavity 6 is greater than far-end, that is to say flare substantially, therefore, in the present embodiment, the stack shell 1a of the positioning and guiding sleeve 1 of this utility model localizer is designed to the curved surface of taper, the aperture of locating hole 11 is consistent up and down along the length direction of sleeve 1 on the sleeve 1, promptly is same aperture with respect to as shown in Figure 5 femur 4 near-ends and far-end, so that the insertion of drill bit 3.
In the THA operation, insert drill bit 3 in the outside, back partially from the near-end of femur 4, could just in time corresponding femoral bone cavitas medullaris 6 centers, therefore the locating hole 11 of this utility model localizer sleeve 1 is eccentric design, shown in Fig. 3,4, be the central axis certain distance of parallel offset positioning and guiding sleeve 1, and towards departing from from the back partially lateral direction of the near-end of femoral bone cavitas medullaris 6.Can guarantee that so just the drill bit that inserts is positioned at the centrage position of femoral bone cavitas medullaris 6 just.
As shown in Figure 1, sleeve handle of the present utility model is inclined to set with respect to the telescopic end face 1a of positioning and guiding, and its angle of inclination is about 35 °～45 °, and its profile is L-shaped substantially, the operation of controlling and locate and lead of sleeve 1 when being convenient to the doctor and performing the operation.
Referring to Fig. 4, the using method of this utility model femur centrage localizer is roughly as follows:
In THA overhaul technology operation process, at first take out original femur 4 prostheses, after the debridement, insert this utility model femur centrage localizer, aim at the locating hole 11 on its positioning and guiding sleeve 1 then, insert a thinner drill bit 3 earlier, the length of drill bit 3 need surpass the height of sleeve 1, have an X-rayed the center position of clear and definite drill bit 3 at femoral bone cavitas medullaris 6, according to the position of drill bit 3 in the perspective of positive side position, utilize sleeve handle 2 to adjust position and the angle of inclination of positioning and guiding sleeve 1 with respect to femoral bone cavitas medullaris 6, be in positive side position picture until positioning and guiding sleeve 1, drill bit 3 all is in the center of femoral bone cavitas medullaris 6.
Then, drill through the formed sclerosis base 5 of femoral bone cavitas medullaris 6 far-ends with power drill bit 3; Subsequently, the drill bit 3 that strengthens step by step with diameter drills through the sclerosis base 5 of femoral bone cavitas medullaris 6 far-ends, for the femur rollover art of manicuring is carried out sufficient preparation.
Because the tapered curved design of the telescopic stack shell of this femur centrage localizer positioning and guiding, the far-end of the near-end of its top and femoral bone cavitas medullaris 6, its bottom and femoral bone cavitas medullaris 6 is all identical substantially, so only need perspective in the art 1～2 time, the location that can finish the femur centrage.Thereby, having shortened doctor's operating time and patient's postoperative rehabilitation time greatly, the situation of thoroughly having stopped femur 4 perforation takes place, and has reduced doctor's operating difficulty, has guaranteed the optimum efficiency of operation.
The drill bit 3 that adopts diameter to increase step by step, get through the sclerosis base 5 of femoral bone cavitas medullaris 6 far-ends after, just can carry out femoral bone cavitas medullaris and prepare according to conventional method, finish the femur art of manicuring of turning on one's side smoothly.
Claims (7)
1, femur centrage localizer, the supporting use of drill bit with diameter increases step by step is characterized in that, comprises positioning and guiding sleeve, sleeve handle;
The telescopic top of described sleeve handle and positioning and guiding is fixedly linked;
It is axially arranged with an elongated locating hole described positioning and guiding sleeve upper edge, and the axis of this locating hole is parallel with the telescopic axis of positioning and guiding.
2, femur centrage localizer according to claim 1 is characterized in that the curved surface that the telescopic stack shell of described positioning and guiding is tapered.
3, femur centrage localizer according to claim 1 and 2 is characterized in that, the aperture of described locating hole is consistent up and down along the telescopic length direction of positioning and guiding.
4, femur centrage localizer according to claim 3 is characterized in that, described locating hole departs from the telescopic central axis of positioning and guiding.
5, femur centrage localizer according to claim 4 is characterized in that, back partially lateral direction departs from described locating hole towards the sleeve top.
6, femur centrage localizer according to claim 1 is characterized in that, described sleeve handle is inclined to set with respect to the telescopic end face of positioning and guiding, and the profile of sleeve handle is the L shape substantially.
7, femur centrage localizer according to claim 6 is characterized in that, described sleeve handle is about 35 °～45 ° with respect to the angle of inclination of positioning and guiding sleeve end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201988555U CN201131801Y (en) | 2007-12-04 | 2007-12-04 | Femoral bone central line locater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201988555U CN201131801Y (en) | 2007-12-04 | 2007-12-04 | Femoral bone central line locater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201131801Y true CN201131801Y (en) | 2008-10-15 |
Family
ID=40060074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201988555U Expired - Fee Related CN201131801Y (en) | 2007-12-04 | 2007-12-04 | Femoral bone central line locater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201131801Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579169A (en) * | 2012-03-20 | 2012-07-18 | 南京大学医学院附属鼓楼医院 | Femoral medullary cavity center line locator |
| CN109745123A (en) * | 2018-07-27 | 2019-05-14 | 苏州铸正机器人有限公司 | Pilot sleeve and surgical instrument |
-
2007
- 2007-12-04 CN CNU2007201988555U patent/CN201131801Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579169A (en) * | 2012-03-20 | 2012-07-18 | 南京大学医学院附属鼓楼医院 | Femoral medullary cavity center line locator |
| CN102579169B (en) * | 2012-03-20 | 2014-08-06 | 南京大学医学院附属鼓楼医院 | Femoral medullary cavity center line locator |
| CN109745123A (en) * | 2018-07-27 | 2019-05-14 | 苏州铸正机器人有限公司 | Pilot sleeve and surgical instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081015 Termination date: 20100104 |