CN205126446U - External direction of femoral neck and internal fixation configuration device - Google Patents
External direction of femoral neck and internal fixation configuration device Download PDFInfo
- Publication number
- CN205126446U CN205126446U CN201520962314.XU CN201520962314U CN205126446U CN 205126446 U CN205126446 U CN 205126446U CN 201520962314 U CN201520962314 U CN 201520962314U CN 205126446 U CN205126446 U CN 205126446U
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- China
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- installing plate
- needle
- bar
- threading
- pointer
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Abstract
The utility model discloses an external direction of femoral neck and internal fixation configuration device, include: uide bushing (1), mounting panel (2), pointer (3) and fastener (4), uide bushing (1) is including threading a needle pole (11) and square guide table (12), mounting panel (2) are the arc, its and the pole of threading a needle (11) the rigid coupling of uide bushing (1), and cup joint with square guide table (12) cooperation including needle body (31) and square position sleeve (32), square position sleeve (32) pointer (3), and fastener (4) are used for fixing mounting panel (2) at human thighbone. The utility model provides an unstable problem with the rate of accuracy of bare -handed operation has improved the accuracy of pilot pin effectively, realizes that the bone neck does not have the wound verification.
Description
Technical field
This utility model belongs to orthopedic medical device, auxiliary positioning apparatus.
Background technology
At present, during fracture of femoral neck internal fixation and femur head necrosis improvement decompression grafting of fibula are performed the operation, inserting of guide pin of location is under the guiding of C arm X-ray machine, by doctor's hand-held location guide pin and the guiding apparatus not having fixed position, implement operation, its accuracy, safety and effectiveness are all lower, are difficult to obtain desirable biomechanics configuration in the narrow and small geometric space of neck of femur; Sometimes locate guide pin position inaccurate, need repeatedly to thread a needle, therefore can damage the remaining normal bone structure of femoral head and neck further, cause unnecessary iatrogenic infringement.In addition, repeatedly use X-ray machine show image, patient and doctor will be subject to ionizing radiation, also have certain hazardness.
Utility model content
The purpose of this utility model is avoid deficiency of the prior art and provide the external guiding of a kind of femoral head and neck and internal fixtion configuration inking device, effectively to improve the accuracy of positioning needle.
For achieving the above object, the utility model discloses the external guiding of femoral head and neck and internal fixtion configuration inking device, comprising: fairlead (1), installing plate (2), pointer (3) and securing member (4); Described fairlead (1) comprises a hollow cylindrical and to thread a needle bar (11) and the square guide table (12) be located on bar of threading a needle (11); Described installing plate (2) is curved, the bar of threading a needle (11) of itself and fairlead (1) is affixed, and the angle between the tangential face of arc of installing plate (2) and the axis of bar of threading a needle (11) is 110 ° ~ 140 °, described pointer (3) comprises needle body (31) and is positioned at the square positioning sleeve (32) of needle body (31) below, described square positioning sleeve (32) coordinates with square guide table (12) and is socketed, and described needle body (31) is positioned at same plane with the axis of bar (11) of threading a needle; Described securing member (4) is for being fixed on human femur under loading by installing plate (2).
In one embodiment, described installing plate (2) is provided with two sections of mounting grooves (21), and described securing member (4) is at least two holding screws, and described holding screw is through mounting groove (21) locking installing plate (2).
In one embodiment, the radian of described installing plate (2) is greater than 180 degree, an open slot (22) is respectively provided with in the middle part of the arc two ends of described installing plate (2), make installing plate (2) have four bare terminal ends (23), described securing member (4) is through bare terminal end (23) locking installing plate (2).
Preferably, described square guide table (12) and the cross section of square positioning sleeve (32) are rectangle.
This utility model structure is simple, and equipment production cost is low.The angle arranged between the tangential face of arc of installing plate and the axis of bar of threading a needle is 110 ° ~ 140 ° and conforms to the scope of the collodiaphyseal angle of human body, the device in use designing several different range angles becomes a set of use, coordinate image technology, implement the accuracy that femoral head and neck operation can improve positioning needle effectively.This utility model coordinates guider to configure follow-up screw and the position of fibula, improve accuracy, reach the biomechanics requirement meeting equilateral triangle or del, the checking of bone cervical region hurtless measure can be realized, solve the problem of hand operation instability and accuracy rate.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the perspective view of this utility model embodiment one.
Fig. 2 is the decomposing schematic representation of this utility model embodiment one.
Fig. 3 is the perspective view of this utility model embodiment two.
Fig. 4 is the installing plate of this utility model embodiment two and the structural representation of fairlead.
Primary clustering symbol description:
1: fairlead, 11: bar of threading a needle, 12: square guide table
2: installing plate, 21: mounting groove, 22: open slot, 23: bare terminal end
3: pointer, 31: needle body, 32: square positioning sleeve
4: securing member.
Detailed description of the invention
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Core of the present utility model is to provide the external guiding of a kind of femoral head and neck and internal fixtion configuration inking device, and it effectively can improve the accuracy of location guide pin in femoral head and neck operation process.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment device comprises: fairlead 1, installing plate 2, pointer 3 and securing member 4.
Fairlead 1 comprises a hollow cylindrical and to thread a needle bar 11 and be located at the square guide table 12 of threading a needle on bar 11; Installing plate 2 is curved, so that fit with the femur of human body.
Installing plate 2 is affixed with the bar 11 of threading a needle of fairlead 1, and the angle between the axis of the tangential face of the arc of installing plate 2 and bar 11 of threading a needle is 110 ° ~ 140 °, namely the α angle in Fig. 1, the span at α angle 110 ° ~ 140 °, matches with the collodiaphyseal angle of human femur under loading.Installing plate 2 is provided with two sections of mounting grooves 21, and the securing member 4 of the present embodiment is two holding screws, and holding screw to lock installing plate 2 through mounting groove 21.
Pointer 3 comprises needle body 31 and is positioned at the square positioning sleeve 32 below needle body 31, and square positioning sleeve 32 coordinates with square guide table 12 and is socketed, and needle body 31 is positioned at same plane with the axis of bar 11 of threading a needle.
The cross section of square guide table 12 and square positioning sleeve 32 is squarely be convenient to location, and the present embodiment is rectangle, produces and easy to use.
When the present embodiment uses, design the α angle of several different range angles, form a set of equipment and use, be convenient to do coupling according to the collodiaphyseal angle of different people and be suitable for.The seven cover this utility model devices being respectively 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 ° as designed α angle become a set of armarium to be supplied to doctor's use.Use procedure is as follows:
1, after knowing the collodiaphyseal angle of patient and the data of top rake, initial option meets this utility model device of collodiaphyseal angle, femur rod does the labelling of inserting needle labelling and installation site, installation site parameter comprises top rake, neck bar angle, pointer 3 overlap with predetermined inserting needle line.
2, on femur rod, bore installing hole, fix this utility model device with holding screw locking installing plate 2.Install pointer 3, under C arm X-ray machine or navigator etc. are image-guided, whether parallelly with collodiaphyseal angle observe pointer 3, if not parallel, test error value, changes the device meeting collodiaphyseal angle, until pointer 3 is parallel with neck bar angle.
3, whether under C arm X-ray machine or navigator etc. are image-guided, observe pointer 3 and overlap with predetermined inserting needle line, if do not overlapped, test error value, unclamps holding screw, mobile device, until pointer 3 overlaps with predetermined inserting needle line.After above-mentioned work completes, the axis of fairlead 1 just overlaps with predetermined inserting needle line.Under C arm X-ray machine or navigator etc. are image-guided, location guide pin is guided to arrive precalculated position by the bar 11 of threading a needle of fairlead 1.
This enforcement by the cross sliding type adjustment external guiding of femoral head and neck and the configuration of internal fixtion configuration, thus guides location guide pin to arrive precalculated position.
Embodiment two
As shown in Figure 3 and Figure 4, the present embodiment device comprises: fairlead 1, installing plate 2, pointer 3 and securing member 4.
The fairlead 1 of the present embodiment and the structure of pointer 3 identical with embodiment one.
Installing plate 2 is curved and radian is greater than 180 degree, installing plate 2 is affixed with the bar 11 of threading a needle of fairlead 1, and the angle between the axis of the tangential face of the arc of installing plate 2 and bar 11 of threading a needle is 110 ° ~ 140 °, namely the α angle in Fig. 3, the span at α angle 110 ° ~ 140 °, matches with the collodiaphyseal angle of human femur under loading.Respectively be provided with an open slot 22 in the middle part of the arc two ends of installing plate 2, make installing plate 2 have four bare terminal ends 23, securing member 4 to lock installing plate 2 through bare terminal end 23.
When the present embodiment uses, design the α angle of several different range angles, form a set of equipment and use, be convenient to do coupling according to the collodiaphyseal angle of different people and be suitable for.The seven cover this utility model devices being respectively 110 °, 115 °, 120 °, 125 °, 130 °, 135 °, 140 ° as designed α angle become a set of armarium to be supplied to doctor's use.Use procedure is as follows:
1, after knowing the neck bar angle of patient and the data of top rake, femur rod does the labelling of inserting needle labelling and installation site, installation site parameter comprises top rake, neck bar angle, pointer 3 overlap with predetermined inserting needle line.
2, the femur rod of four of installing plate 2 bare terminal ends 23 with human body is fitted, fix with securing member 4.Observe top rake and whether meet predetermined angular, if do not met, loosening fasteners 4, rotates installing plate 2, until meet predetermined angular around femur rod.
3, pointer 3 is installed, under C arm X-ray machine or navigator etc. are image-guided, whether parallelly with neck bar angle observes pointer 3, if not parallel, change installing plate 2, select the installing plate 2 meeting collodiaphyseal angle.Whether under C arm X-ray machine or navigator etc. are image-guided, observe pointer 3 and overlap with predetermined inserting needle line, if do not overlapped, loosening fasteners 4, mobile installing plate 2, until overlap with predetermined inserting needle line.After above-mentioned work completes, the axis of fairlead 1 just overlaps with predetermined inserting needle line.Under C arm X-ray machine or navigator etc. are image-guided, location guide pin is guided to arrive precalculated position by fairlead 1.
Can fairlead be clamped on femur rod by the present embodiment, can rotate and transverse shifting around femur rod, thus guide location guide pin to arrive precalculated position.
This utility model structure is simple, easy to use, coordinates image technology, implements the accuracy that femoral head and neck operation can improve positioning needle effectively, is suitable for applying.
Although this utility model illustrates above-mentioned preferred implementation; but should illustrate; although those skilled in the art can carry out various change and remodeling, unless such change and remodeling deviate from scope of the present utility model, otherwise all should be included in protection domain of the present utility model.
Claims (4)
1. the external guiding of femoral head and neck and internal fixtion configuration inking device, is characterized in that, comprising: fairlead (1), installing plate (2), pointer (3) and securing member (4); Described fairlead (1) comprises a hollow cylindrical and to thread a needle bar (11) and the square guide table (12) be located on bar of threading a needle (11); Described installing plate (2) is curved, and the bar of threading a needle (11) of itself and fairlead (1) is affixed, and the angle between the tangential face of arc of installing plate (2) and the axis of bar of threading a needle (11) is 110 ° ~ 140 °; Described pointer (3) comprises needle body (31) and is positioned at the square positioning sleeve (32) of needle body (31) below, described square positioning sleeve (32) coordinates with square guide table (12) and is socketed, and described needle body (31) is positioned at same plane with the axis of bar (11) of threading a needle; Described securing member (4) is for being fixed on human femur under loading by installing plate (2).
2. the external guiding of femoral head and neck according to claim 1 and internal fixtion configuration inking device, it is characterized in that: described installing plate (2) is provided with two sections of mounting grooves (21), described securing member (4) is at least two holding screws, and described holding screw is through mounting groove (21) locking installing plate (2).
3. the external guiding of femoral head and neck according to claim 1 and internal fixtion configuration inking device, it is characterized in that: the radian of described installing plate (2) is greater than 180 degree, an open slot (22) is respectively provided with in the middle part of the arc two ends of described installing plate (2), make installing plate (2) have four bare terminal ends (23), described securing member (4) is through bare terminal end (23) locking installing plate (2).
4. the external guiding of femoral head and neck according to claim 1 and internal fixtion configuration inking device, is characterized in that: described square guide table (12) and the cross section of square positioning sleeve (32) are rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962314.XU CN205126446U (en) | 2015-11-27 | 2015-11-27 | External direction of femoral neck and internal fixation configuration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520962314.XU CN205126446U (en) | 2015-11-27 | 2015-11-27 | External direction of femoral neck and internal fixation configuration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205126446U true CN205126446U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520962314.XU Expired - Fee Related CN205126446U (en) | 2015-11-27 | 2015-11-27 | External direction of femoral neck and internal fixation configuration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205126446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496544A (en) * | 2015-11-27 | 2016-04-20 | 广东工业大学 | Configuration device for external guiding and internal fixation of femoral head and neck regions |
| CN110115636A (en) * | 2019-06-28 | 2019-08-13 | 曹延香 | It is a kind of to increase steady stabilization formula surgical instrument |
-
2015
- 2015-11-27 CN CN201520962314.XU patent/CN205126446U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496544A (en) * | 2015-11-27 | 2016-04-20 | 广东工业大学 | Configuration device for external guiding and internal fixation of femoral head and neck regions |
| CN110115636A (en) * | 2019-06-28 | 2019-08-13 | 曹延香 | It is a kind of to increase steady stabilization formula surgical instrument |
| CN110115636B (en) * | 2019-06-28 | 2022-08-26 | 盐城诺诚祈瑞智能科技有限公司 | Stability-increasing anti-shaking surgical instrument |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20181127 |