CN202288471U - Guiding device for percutaneous hollow-screw internal fixation for femur near-end fractures - Google Patents
Guiding device for percutaneous hollow-screw internal fixation for femur near-end fractures Download PDFInfo
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- CN202288471U CN202288471U CN2011203812224U CN201120381222U CN202288471U CN 202288471 U CN202288471 U CN 202288471U CN 2011203812224 U CN2011203812224 U CN 2011203812224U CN 201120381222 U CN201120381222 U CN 201120381222U CN 202288471 U CN202288471 U CN 202288471U
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- positioning needle
- plate
- cylindrical void
- location
- internal fixation
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Abstract
The utility model discloses a guiding device suitable for percutaneous hollow-screw internal fixation for femur near-end fractures, which comprises an orthopedic traction frame center column, a locating plate and a space position and angle adjusting mechanism connected between the locating plate and the space position and angle adjusting mechanism. The locating plate is provided with a first locating needle and a second locating needle which are jointly located in the same plane, and a third locating needle which is coplanar with the second locating needle is arranged at the tail end of the first locating needle on a rotating disc. The guiding device overcomes the shortcoming that an existing guiding device generates plenty of radiation to medical workers and can quickly and accurately determine the body-surface imbedding position of a hollow guide needle.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of percutaneous fractured near end of thighbone hollow screw internal fixation guider.
Background technology
Fractured near end of thighbone (comprising fracture of femoral neck and intertrochanteric fracture of the femur) is comparatively common in the adult.Epidemiological study finds that in nearly decades, along with the increase of human average life, the sickness rate of fractured near end of thighbone is obvious ascendant trend.Fracture has quite high disability rate and a mortality rate, and about 15%～20% patient is dead in back 2 years of fracture, and after 1 year, patient's mortality rate returns to the par with age group.
The purpose of fractured near end of thighbone internal fixation operation is to obtain firm and stable internal fixation, the activity so that patient gets up at short notice.Early ambulant helps patient's postoperative prevention pulmonary complication, venous thrombosis, decubital ulcer etc.
Existing own opinion should for intertrochanteric fracture, generally be carried out DHS (chute compression goose head shaped nail) system's internal fixation actively to this type of fractured near end of thighbone internal fixation operation both at home and abroad.For fracture of femoral neck, be lower than the hollow pressurization screw operation of general row pulling force in 60 years old, the chance of a union of fracture can be arranged to the patient.When carrying out this type of operation, generally be the C type arm X-ray machine that utilizes radiophotography to use, in conjunction with guider, the hollow guide pin of constraint staple bore path is inserted the precalculated position of neck of femur, thereby accomplish a series of surgical operation steps.At present; Operator generally adopts in the operation Ipsilateral buttocks is omited bed hedgehopping, utilizes guider to insert guide pin by rule of thumb, guide pin often occurs and can not insert the precalculated position rapidly and accurately; Need repeatedly repetitive operation; Operating time is prolonged, increase blood loss volume during the operation and increased operation wound, also make patient and medical personnel absorb too much unnecessary roentgendosis simultaneously.
The utility model content
The technical problem that this utility model will solve provide a kind of can be with the percutaneous fractured near end of thighbone hollow screw internal fixation guider of the body surface implantation site of confirming hollow guide pin rapidly and accurately.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme:
A kind of percutaneous fractured near end of thighbone hollow screw internal fixation guider is used with bone traction frame, C type arm X-ray machine, and said percutaneous fractured near end of thighbone hollow screw internal fixation guider comprises
The bone traction frame gin pole is located on the bone traction frame;
Location-plate; The location-plate middle part is provided with the first strip cylindrical void and is located at the rotation disc on the first strip cylindrical void; An end of the first strip cylindrical void length direction is installed with first positioning needle on the location-plate; Be installed with second positioning needle on the rotation disc, wherein first positioning needle and second positioning needle are co-located on in location-plate becomes to confirm a parallel plane of spacing; The end of second positioning needle is provided with a sleeve on the rotation disc, socket one rotating shaft in the sleeve, and rotating shaft axially consistent with the rectilinear direction of second positioning needle, rotating shaft is provided with and coplanar the 3rd positioning needle of second positioning needle; Rotation disc comprises capstan, following capstan and connecting rod between the two, and the said first strip cylindrical void equidistance is clamped in to be gone up between capstan and the following capstan, and the bar of said connecting rod directly is less than or equal to the aperture of the first strip cylindrical void;
Locus and angle adjusting mechanism are connected between location-plate and the bone traction frame gin pole.
The first strip cylindrical void equidistance is clamped in to be gone up between capstan and the following capstan; Be that the strip cylindrical void is located between capstan and the following capstan; Spacing between last capstan and the following capstan equals the thickness of strip cylindrical void; Can make like this strip cylindrical void constraint rotation disc height and position (regulate rotation disc so in any case, its with respect to location-plate height and position constant, guaranteed that correspondingly second positioning needle is in in location-plate becomes to confirm a parallel plane of spacing all the time); Can make rotation disc in the first strip cylindrical void, slide (compared with interference fit, the sliding friction of rotation disc in the strip cylindrical void under " equidistance clamping " prerequisite is less) again.
The bar of connecting rod directly is less than or equal to the aperture of the first strip cylindrical void, if the bar of connecting rod footpath greater than the aperture of the first strip cylindrical void rotation disc can be stuck in the first strip cylindrical void and can't rotate also and can't slide.
The end of second positioning needle is provided with a sleeve on the rotation disc, socket one rotating shaft in the sleeve, and rotating shaft axially consistent with the rectilinear direction of second positioning needle, rotating shaft is provided with and coplanar the 3rd positioning needle of second positioning needle.Can rotating shaft be regarded as the extension of second positioning needle on rectilinear direction like this; Rotating shaft is provided with and coplanar the 3rd positioning needle of second positioning needle; If the 3rd positioning needle directly is connected on the rotating shaft, then the link position of the 3rd positioning needle and rotating shaft promptly can be considered its straight line of living in of the 3rd positioning needle and second positioning needle collinear position of intersecting point of living in; If the 3rd positioning needle is connected on the rotating shaft through certain way indirectly, then position of intersecting point also should be positioned on the axially-extending line of rotating shaft; Certain the 3rd positioning needle also might be parallel to second positioning needle; Add himself rotatable characteristic of rotating shaft (rotation of corresponding space also can take place the 3rd positioning needle of being located on the rotating shaft), so can determine the plane that becomes any angle with said parallel plane by second and third positioning needle.
Further, said locus and angle adjusting mechanism comprise
Elevating lever, one of which end are socketed in the bone traction frame gin pole, and said bone traction frame gin pole is a hollow tube-shape;
The level plate that spins, the level plate middle part that spins is provided with the second strip cylindrical void, and level spins, and an end of the second strip cylindrical void length direction is provided with the locating hole that spins on the plate; The said second strip cylindrical void equidistance is clamped in the other end of elevating lever, and the bar of the elevating lever other end directly is less than or equal to the aperture of the second strip cylindrical void;
Finely tune the part that spins, the one of which end is provided with and the corresponding fine setting of the said locating hole that spins location cylindrical void, and the locating hole that spins is fixed together through the locking positioning bolt with fine setting location cylindrical void; Spin its other end of plate and said location-plate of fine setting is hinged.
Elevating lever belongs to height adjustment mechanism,
The spin second strip cylindrical void equidistance in the plate of level is clamped in the other end of elevating lever, and the bar of the elevating lever other end directly is less than or equal to the aperture of the second strip cylindrical void.Level spins between plate and the elevating lever and to adopt the close design of the rotation disc first strip cylindrical void, makes the level plate that spins be rotated and slide with respect to elevating lever.The level plate that spins belongs to the positioning regulating mechanism of horizontal range.
Basically confirmed the location-plate locus through elevating lever, the level plate that spins, need finely tune the part that spins and regulate but the space of location-plate self trend is a space angle.Spin its other end of plate and said location-plate of fine setting is hinged, further increases the controllability of location-plate at space angle; The bigger inconvenient finely regulating of the anglec of rotation of plate can set the location-plate space in manual work and walk backward because level spins, and the locating hole that will spin again, fine setting location cylindrical void are aimed at, and fix through the locking positioning bolt then;
Further, the end of said second positioning needle is meant the end of second positioning needle away from bone traction frame.
Because second positioning needle comprises away from end of bone traction frame and a end near bone traction frame; If sleeve, rotating shaft are located at the end near bone traction frame, then the 3rd positioning needle more near human body, is not easy to manual adjustment rotating shaft (being subject to the influence of tissue) than second positioning needle; What is more, and the 3rd positioning needle might be between people's two lower limbs, and this position can be detected owing to the inconvenience of blocking of tissue; Because this utility model is selected the end away from bone traction frame, by the influence of avoiding human body itself to concrete operations as far as possible.
Further; The other end of the first strip cylindrical void length direction is fixed with the 4th positioning needle on the said location-plate; Said the 4th positioning needle and first positioning needle, second positioning needle one are in together with in location-plate becomes to confirm a parallel plane of spacing, and the 4th positioning needle and first positioning needle parallel.
Further, said the 3rd positioning needle is located in the 3rd positioning needle attaching means, and said the 3rd positioning needle attaching means is hinged on the rotating shaft.
Combine the concrete operation principle of this utility model percutaneous fractured near end of thighbone hollow screw internal fixation guider at present, its technique effect is described.The implantation site of supposing hollow guide pin is on reverse S-line of Golden, to depart from the neck of femur axis apart from a, the position of on the picture of side position, departing from neck of femur axis distance b, existing adopt location that following operation realizes this position and corresponding hollow guide pin should keep insert angle.
The 1st step, elder generation are placed in reseting fracture on the bone traction frame with patient; Be the fixed position with the bone traction frame gin pole then; Locus through locus and angle adjusting mechanism adjustment location-plate; Be convenient to first positioning needle by outside top near the femur position of human body and require first positioning needle to get into C type arm X-ray machine can irradiated zone; Adjustment (rotation or slide) rotation disc makes second positioning needle roughly point to acetabular bone or femoral head position, and requiring second positioning needle also to get into C type arm X-ray machine can irradiated zone; Use C type arm X-ray machine and take near the reverse S-line of Golden image of femoral head; Adjust the solid space position of first and second positioning needle again through above-mentioned adjustment mode according to image; On reverse S-line of Golden, be shown as straight line until two positioning needles, and this straight line and neck of femur axis distance are a; (and parallel distance is a), soon becomes to confirm that with location-plate a parallel plane of spacing is adjusted into the plane that is parallel to the neck of femur axis to have confirmed to be parallel to first face of neck of femur axis thus.
The irradiation head of the 2nd step, adjustment C type arm X-ray machine; Make irradiation head be convenient to take near the side position image pattern picture of femoral head; The second positioning needle invariant position; Through rotating shaft and corresponding hinged relationship the 3rd positioning needle being got into can (because the influence of space factors such as C type arm X-ray machine position, medical personnel present position, bone traction frame position of irradiated zone; Need utilize hinged relationship to adjust the angular relationship of the 3rd positioning needle and second positioning needle, avoid influencing operation of medical workers), use the irradiation head of C type arm X-ray machine and take near the side position image pattern picture of femoral head; And according to second and third positioning needle locus of side position image pattern picture adjustment; Wherein the adjustment of the 3rd positioning needle mainly is the rotation that relies on the axle that spins, and on image, is shown as straight line until second and third positioning needle, and straight line and neck of femur axis distance are b; Confirmed to be parallel to second face (and parallel distance is b) of neck of femur axis thus, promptly after rotating shaft is regulated by determined of second and third positioning needle.
Because; Second positioning needle is in above-mentioned two planes that are parallel to the neck of femur axis simultaneously; And these two planes that are parallel to the neck of femur axis are both inequality also not parallel; (confirming a space line by two antarafacials) is so its rectilinear direction of second positioning needle is parallel with the neck of femur axis; Second positioning needle body surface position pointed promptly be asked on reverse S-line of Golden, depart from the neck of femur axis apart from a, on the picture of side position, depart from the body surface position of neck of femur axis distance b, the space angle of second positioning needle also should be hollow guide pin the space angle (all being to be parallel to the neck of femur axis with hollow guide pin to be advisable in the practical operation) that should take.
This utility model percutaneous fractured near end of thighbone hollow screw internal fixation guider can also be provided with the 4th positioning needle; It but is second positioning needle that replaces in the 1st step; Confirm first face of parallel neck of femur axis, and no matter how rotation disc rotates or slide, second positioning needle all should be in first face of this parallel neck of femur axis; The confirming of face that this does not influence second parallel neck of femur axis do not influence last technique effect yet.
Second and third positioning needle should adopt the principle of " two intersection is confirmed a face " when confirming second face; Rather than parallel definite mode, mainly contain two design reasons: adopt parallel mode to need the 3rd positioning needle is located at femur opposite side (lateral side of femur of crotch or other one leg) first.During photographic images, there be blocking of tissue, be inconvenient to compare two positioning needles and whether be in same straight line; Moreover span is big, also need adopt a structure that is similar to location-plate could realize this effect again behind the employing location-plate, the structure relative complex, and cost increases.
Practical application this utility model percutaneous fractured near end of thighbone hollow screw internal fixation guider; Only need two, three radiation imaging can confirm a face; Whole guide-localization process only needs imaging 5～7 times, so can accomplish safe and effective, location quickly and accurately.
Description of drawings
Fig. 1 is the user mode figure of fracture of femoral neck screw external sight of Wicresoft's internal fixation operation of the present invention and traction frame.
Fig. 2 is the structural representation (drawing the bone traction frame gin pole) of the traction frame corresponding with Fig. 1.
Fig. 3 is the structural representation (not drawing the bone traction frame gin pole) of a kind of embodiment of the external sight of fractured near end of thighbone hollow screw internal fixation of the present invention.
Fig. 4 is and the corresponding local enlarged diagram of Fig. 3.
Fig. 5 be with the corresponding counter-rotating of Fig. 3 after the structural representation of the external sight of fractured near end of thighbone hollow screw internal fixation.
Fig. 6 is corresponding with Fig. 3 when first, second and third positioning needle is same straight line, the structural representation of the external sight of fractured near end of thighbone hollow screw internal fixation of the present invention.
Fig. 7 be with the corresponding removal locking positioning of Fig. 6 bolt state under, the structural representation of the external sight of fractured near end of thighbone hollow screw internal fixation of the present invention.
The specific embodiment
A kind of percutaneous fractured near end of thighbone hollow screw internal fixation guider is used with bone traction frame, C type arm X-ray machine, and said percutaneous fractured near end of thighbone hollow screw internal fixation guider comprises
Bone traction frame gin pole 1 is located on the bone traction frame 2;
Location-plate 9; Location-plate 9 middle parts are provided with the first strip cylindrical void 21 and are located at the rotation disc 5 on the first strip cylindrical void 21; An end of the first strip cylindrical void, 21 length directions is installed with first positioning needle 7 on the location-plate 9; Be installed with second positioning needle 10 on the rotation disc 5, wherein first positioning needle 7 and second positioning needle 10 are co-located on in 9 one-tenth of location-plates are confirmed a parallel plane of spacings; The end of second positioning needle 10 is provided with a sleeve 22 on the rotation disc 5, socket one rotating shafts 13 in the sleeve 22, and rotating shaft 13 axially consistent with the rectilinear direction of second positioning needle 10, rotating shaft 13 is provided with and second positioning needle, 10 coplanar the 3rd positioning needles 8; Rotation disc 5 comprises capstan, following capstan 14 and connecting rod between the two, and second positioning needle 10 is located on the capstan; The said first strip cylindrical void, 21 equidistance are clamped in to be gone up between capstan and the following capstan 14, and the bar of said connecting rod directly is less than or equal to the aperture of the first strip cylindrical void 21;
Wherein the other end of the first strip cylindrical void, 21 length directions is fixed with the 4th positioning needle 6 on the location-plate 9; Said the 4th positioning needle 6 and first positioning needle 7, second positioning needle 10 1 is in together with in 9 one-tenth of location-plates are confirmed a parallel plane of spacings, and the 4th positioning needle 6 and first positioning needle 7 parallel; The end of said second positioning needle 10 is meant the end of second positioning needle 10 away from bone traction frame 2; Said the 3rd positioning needle 8 is located in the 3rd positioning needle attaching means 12, and said the 3rd positioning needle attaching means 12 is hinged on the rotating shaft 13.
Locus and angle adjusting mechanism are connected between location-plate 9 and the bone traction frame gin pole 1.
Its spatial location and angle adjusting mechanism can be taked various ways, select for use like mode as the specific embodiment:
Locus and angle adjusting mechanism comprise
The level plate 4 that spins, level plate 4 middle parts that spin are provided with the second strip cylindrical void 23, and level spins, and an end of the second strip cylindrical void, 23 length directions is provided with the locating hole 31 that spins on the plate 4; The said second strip cylindrical void, 23 equidistance are clamped in the other end of elevating lever 3, and the bar of elevating lever 3 other ends directly is less than or equal to the aperture of the second strip cylindrical void 23;
Finely tune the part 24 that spins, the one of which end is provided with and the said locating hole 31 corresponding fine settings location cylindrical voids that spin, and the locating hole 31 that spins is fixed together through locking positioning bolt 11 with fine setting location cylindrical void; Spin plate 24 its other ends and said location-plate 9 of fine setting is hinged.
Also being provided with confinement sleeve 33, the second positioning needles 10 on the rotation disc 5 is installed in the confinement sleeve 33 on the rotation disc 5.
For a person skilled in the art; Under the prerequisite that does not break away from this utility model structure; Can also make some distortion and improvement, should be regarded as the protection domain of this utility model like these yet, these can not influence effect and practical applicability that this utility model is implemented.
Claims (5)
1. a percutaneous fractured near end of thighbone hollow screw internal fixation guider is used with bone traction frame, C type arm X-ray machine, it is characterized in that, said percutaneous fractured near end of thighbone hollow screw internal fixation guider comprises:
The bone traction frame gin pole is located on the bone traction frame;
Location-plate; The location-plate middle part is provided with the first strip cylindrical void and is located at the rotation disc on the first strip cylindrical void; An end of the first strip cylindrical void length direction is installed with first positioning needle on the location-plate; Be installed with second positioning needle on the rotation disc, wherein first positioning needle and second positioning needle are co-located on in location-plate becomes to confirm a parallel plane of spacing; The end of second positioning needle is provided with a sleeve on the rotation disc, socket one rotating shaft in the sleeve, and rotating shaft axially consistent with the rectilinear direction of second positioning needle, rotating shaft is provided with and coplanar the 3rd positioning needle of second positioning needle; Rotation disc comprises capstan, following capstan and connecting rod between the two, and the said first strip cylindrical void equidistance is clamped in to be gone up between capstan and the following capstan, and the bar of said connecting rod directly is less than or equal to the aperture of the first strip cylindrical void;
Locus and angle adjusting mechanism are connected between location-plate and the bone traction frame gin pole.
2. percutaneous fractured near end of thighbone hollow screw internal fixation guider according to claim 1 is characterized in that said locus and angle adjusting mechanism comprise:
Elevating lever, one of which end are socketed in the bone traction frame gin pole, and said bone traction frame gin pole is a hollow tube-shape;
The level plate that spins, the level plate middle part that spins is provided with the second strip cylindrical void, and level spins, and an end of the second strip cylindrical void length direction is provided with the locating hole that spins on the plate; The said second strip cylindrical void equidistance is clamped in the other end of elevating lever, and the bar of the elevating lever other end directly is less than or equal to the aperture of the second strip cylindrical void;
Finely tune the part that spins, the one of which end is provided with and the corresponding fine setting of the said locating hole that spins location cylindrical void, and the locating hole that spins is fixed together through the locking positioning bolt with fine setting location cylindrical void; Spin its other end of plate and said location-plate of fine setting is hinged.
3. percutaneous fractured near end of thighbone hollow screw internal fixation guider according to claim 1 is characterized in that the end of said second positioning needle is meant the end of second positioning needle away from bone traction frame.
4. percutaneous fractured near end of thighbone hollow screw internal fixation guider according to claim 1; It is characterized in that; The other end of the first strip cylindrical void length direction is fixed with the 4th positioning needle on the said location-plate; Said the 4th positioning needle and first positioning needle, second positioning needle one are in together with in location-plate becomes to confirm a parallel plane of spacing, and the 4th positioning needle and first positioning needle parallel.
5. percutaneous fractured near end of thighbone hollow screw internal fixation guider according to claim 1 is characterized in that said the 3rd positioning needle is located in the 3rd positioning needle attaching means, and said the 3rd positioning needle attaching means is hinged on the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203812224U CN202288471U (en) | 2011-09-30 | 2011-09-30 | Guiding device for percutaneous hollow-screw internal fixation for femur near-end fractures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203812224U CN202288471U (en) | 2011-09-30 | 2011-09-30 | Guiding device for percutaneous hollow-screw internal fixation for femur near-end fractures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202288471U true CN202288471U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203812224U Expired - Fee Related CN202288471U (en) | 2011-09-30 | 2011-09-30 | Guiding device for percutaneous hollow-screw internal fixation for femur near-end fractures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202288471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769326A (en) * | 2016-01-08 | 2016-07-20 | 深圳市第二人民医院 | Surgery binocular locator |
| CN109276324A (en) * | 2018-09-21 | 2019-01-29 | 张晨晨 | A kind of bone surgery four limbs external fixation device |
| CN117297744A (en) * | 2023-10-07 | 2023-12-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
-
2011
- 2011-09-30 CN CN2011203812224U patent/CN202288471U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769326A (en) * | 2016-01-08 | 2016-07-20 | 深圳市第二人民医院 | Surgery binocular locator |
| CN105769326B (en) * | 2016-01-08 | 2017-12-29 | 深圳市第二人民医院 | One kind operation bitubular locator |
| CN109276324A (en) * | 2018-09-21 | 2019-01-29 | 张晨晨 | A kind of bone surgery four limbs external fixation device |
| CN117297744A (en) * | 2023-10-07 | 2023-12-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
| CN117297744B (en) * | 2023-10-07 | 2024-03-29 | 中国人民解放军总医院第六医学中心 | Femur neck fracture hollow nail sighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120704 Termination date: 20140930 |
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| EXPY | Termination of patent right or utility model |