CN215018803U - Femoral neck fracture body surface location hollow nail director - Google Patents
Femoral neck fracture body surface location hollow nail director Download PDFInfo
- Publication number
- CN215018803U CN215018803U CN202120818016.9U CN202120818016U CN215018803U CN 215018803 U CN215018803 U CN 215018803U CN 202120818016 U CN202120818016 U CN 202120818016U CN 215018803 U CN215018803 U CN 215018803U
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- Prior art keywords
- positioning
- sleeve
- inner sleeve
- guide inner
- plate
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- 208000020089 femoral neck fracture Diseases 0.000 title claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 18
- 230000037431 insertion Effects 0.000 claims abstract description 18
- 208000010392 Bone Fractures Diseases 0.000 claims description 4
- 206010017076 Fracture Diseases 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims 1
- 210000001694 thigh bone Anatomy 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 210000002436 femur neck Anatomy 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 210000003414 extremity Anatomy 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920004934 Dacron® Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 210000000527 greater trochanter Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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Abstract
A femoral neck fracture body surface positioning hollow nail guider comprises a positioning plate, wherein the upper end of the positioning plate is connected with a positioning sleeve which is obliquely arranged, the axis of the positioning sleeve forms an included angle of 135 degrees with the plate surface of the positioning plate and inclines 12-15 degrees to one side of the positioning plate, three insertion holes which are triangularly arranged are arranged in the positioning sleeve, and the inner diameter of each insertion hole is in clearance fit with the outer diameter of a hollow nail to be used; a guide inner sleeve is inserted into the jack through clearance fit respectively, the inner diameter of the guide inner sleeve is in clearance fit with the Kirschner wire to be used, and a positioning shoulder is arranged on the outer edge of one end of the guide inner sleeve and clamped at one end of the positioning sleeve; the other end of the guide inner sleeve penetrates through the jack and is uniformly provided with positioning teeth along the circumferential direction; and a positioning structure is arranged between the guide inner sleeve and the corresponding jack. The guider enables the operation to be more accurate, can save operation time and reduce the times and time that patients and operation operators are repeatedly irradiated by X rays; reduce the injury to medical staff caused by continuous working X-ray radiation.
Description
Technical Field
The utility model relates to an operation auxiliary tool, in particular to a femoral neck fracture body surface positioning hollow nail guider.
Background
At present, a hollow nail is generally required to be driven into a femoral neck fracture operation for internal fixation, and the specific operation steps are as follows: the patient lies on the back, and the affected limb is drawn and reset on the traction table; after the reduction is confirmed through the perspective of a C-shaped arm (G arm) X-ray machine, three 2.0 Kirschner wires which are arranged in a shape like a Chinese character pin are driven in the position outside the greater trochanter after the femoral shaft is 135 degrees and is inclined forwards by 12 to 15 degrees, and the driving angle is manually estimated by an operator according to visual blurring to ensure that the three Kirschner wires are all in the femoral neck in the normal position and the axial position; then taking three Kirschner wires as guide pins, respectively reaming along the direction of the guide pins and then screwing the hollow pins into the hollow pins; and finally, the C-shaped arm (G arm) is reexamined and the wound is closed after the fracture position and the fixation condition are confirmed to be satisfied, and the operation is finished.
In the existing operation process, a C-shaped arm (G-arm) needs to be repeatedly used for perspective confirmation of fracture reduction and the position of an internal fixation object, so that a patient and operation operators are repeatedly irradiated by X rays, and the radiation is accumulated in the bodies of medical staff due to continuous work after the same operation formula is repeated every day, thereby causing great threat to the physical health of the medical staff. Non-viable cells
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a femoral neck fracture body surface positioning hollow nail guider, which can make the operation more accurate, save the operation time and reduce the times and time that the patient and the operation operator repeatedly receive X-ray irradiation; reduce the injury to medical staff caused by continuous working X-ray radiation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a femoral neck fracture body surface positioning hollow nail guider comprises a positioning plate, wherein the upper end of the positioning plate is connected with a positioning sleeve which is obliquely arranged, the axis of the positioning sleeve forms an included angle of 135 degrees with the plate surface of the positioning plate and inclines 12-15 degrees to one side of the positioning plate, three insertion holes which are triangularly arranged are arranged in the positioning sleeve, and the inner diameter of each insertion hole is in clearance fit with the outer diameter of a hollow nail to be used; a guide inner sleeve is inserted into the jack through clearance fit respectively, the inner diameter of the guide inner sleeve is in clearance fit with the Kirschner wire to be used, and a positioning shoulder is arranged on the outer edge of one end of the guide inner sleeve and clamped at one end of the positioning sleeve; the other end of the guide inner sleeve penetrates through the jack and is uniformly provided with positioning teeth along the circumferential direction;
and a positioning structure is arranged between the guide inner sleeve and the corresponding jack and is used for positioning the guide inner sleeve after the guide inner sleeve is inserted.
As a further preference, the positioning sleeve is tapered for insertion into the body.
Preferably, the positioning structure comprises a positioning boss arranged at one end of the outer edge of the guide inner sleeve close to the positioning shoulder, an L-shaped clamping groove is arranged at one end of the inner wall of the insertion hole corresponding to the insertion of the guide inner sleeve, and the positioning boss is in clearance fit with the L-shaped clamping groove and clamped at the inner end of the L-shaped clamping groove.
Preferably, a base plate is connected to the lower surface of the positioning plate through a screw, and the base plate is provided with a positioning hole to facilitate the body surface positioning of the guide.
Preferably, a strip-shaped long hole is formed in the positioning plate corresponding to the screw in the longitudinal direction, so that the relative position of the positioning hole and the positioning sleeve can be adjusted conveniently.
The utility model has the advantages that:
1. because the upper end of the positioning plate is connected with the positioning sleeve which is obliquely arranged, the axis of the positioning sleeve forms an included angle of 135 degrees with the plate surface of the positioning plate and inclines 12-15 degrees to one side of the positioning plate, and the femoral neck shaft angle and the anteversion angle are accurately designed in the guider, the nail feeding angle does not need to be estimated manually by means of visual blurring in the operation, so that the operation is more accurate, and the operation error can be reduced;
2. because the positioning sleeve is internally provided with three triangular insertion holes, the inner diameters of the insertion holes are in clearance fit with the outer diameter of the hollow nail to be used; a guide inner sleeve is inserted into the jack through clearance fit, and the inner diameter of the guide inner sleeve is in clearance fit with the Kirschner wire to be used; therefore, three Kirschner wires can be fixed by positioning the guider once in the operation, the operation time is greatly saved compared with the conventional method of punching in and adjusting for multiple times, the times and time of repeatedly irradiating the patient and the operation operator by X rays are reduced, the accumulation of the X rays in the body of the medical staff caused by continuous work is reduced, and the injury to the medical staff is reduced; the guider enables the internal fixation operation of femoral neck fracture to be more accurate in magnitude, and avoids the problems that the estimation is inaccurate due to an operator, the repeated operation causes the side injury to a patient and a doctor repeatedly takes the thread.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic structural view of the positioning sleeve of the present invention.
Fig. 4 is a sectional view a-a of fig. 3.
In the figure: the positioning device comprises a positioning plate 1, a guide inner sleeve 2, positioning teeth 201, a positioning boss 202, a positioning sleeve 3, an insertion hole 301, an L-shaped clamping groove 302, a base plate 4, a positioning hole 401, a strip-shaped long hole 402 and a screw 5.
Detailed Description
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
As shown in figures 1-4, the utility model relates to a femoral neck fracture body surface location hollow nail director, including a locating plate 1, at locating plate 1 upper end fixedly connected with slope arrangement's position sleeve 3, 3 outer fringe of position sleeve are the toper to insert internally. The positioning plate 1 is fixedly connected to one end of a large diameter of the positioning sleeve 3, an included angle alpha of 135 degrees is formed between the axis of the positioning sleeve 3 and the plate surface of the positioning plate 1, the axis of the positioning sleeve 3 inclines to one side of the central line of the positioning plate 1, and the inclination angle beta is 12-15 degrees.
Three triangular jacks 301 are arranged in the positioning sleeve 3 along the axial direction of the positioning sleeve, and the inner diameters of the jacks are in clearance fit with the outer diameter of the hollow nail to be used; the jack 301 is internally inserted with a guide inner sleeve 2 through clearance fit, the inner diameter of the guide inner sleeve 2 is in clearance fit with a Kirschner wire to be used, and the outer edge of one end of the guide inner sleeve 2 is provided with a positioning shoulder and is clamped at one end with a large diameter of the positioning sleeve 3; the other end of the guide inner sleeve 2 penetrates through the jack 301 and is uniformly provided with positioning teeth 201 along the circumferential direction.
A positioning structure is arranged between the guide inner sleeve 2 and the corresponding jack 301 for positioning the guide inner sleeve 2 after insertion. The positioning structure comprises a positioning boss 202 arranged at one end of the outer edge of the guide inner sleeve 2 close to the positioning shoulder, an L-shaped clamping groove 302 is arranged at one end of the inner wall of the insertion hole 301 corresponding to the insertion of the guide inner sleeve 2, and the positioning boss is in clearance fit with the L-shaped clamping groove 302 and clamped at the inner end of the L-shaped clamping groove.
A base plate 4 is connected below the positioning plate 1 through two screws 5, and a positioning hole 401 is arranged on the base plate 4 close to the lower end so as to facilitate the body surface positioning of the guider. A long bar-shaped hole 402 is formed in the positioning plate 4 in the longitudinal direction corresponding to the screw 5, so that the relative position of the positioning hole 401 and the positioning sleeve 3 can be adjusted.
The operation steps when the femoral neck fracture body surface positioning hollow nail guider is used for operation are as follows:
1. the patient lies on the back, and the affected limb is drawn and reset on the traction table; after the reduction is confirmed through the perspective of a C-shaped arm (G arm) X-ray machine, the guider is fixed at the far end of the femur through a positioning hole 401 and a Kirschner wire penetrating through the positioning hole 401;
2. after the relative position of the positioning plate of the guider and the base plate 4 is adjusted, the positioning plate is attached to the outer side of the body surface corresponding to the femoral shaft, the small-diameter end of the positioning sleeve 3 is inserted and is pressed against the outer lower part of the Dacron through the positioning teeth 201 at the front end of the guide inner sleeve 2, and three 2.0 Kirschner wires are respectively driven into the inner hole of the guide inner sleeve 2; and (3) performing perspective review on the normal position and the axial position by using a C-shaped arm (G arm) X-ray machine, wherein three Kirschner wires are all arranged in the neck of the femur.
3. And respectively rotating the guide inner sleeve 2 anticlockwise to enable the positioning boss to be separated from the inner end of the L-shaped clamping groove 302, axially withdrawing the guide inner sleeve 2 from the corresponding jack and reserving three Kirschner wires, and finally respectively taking the three Kirschner wires as guide pins, respectively reaming along the direction of the guide pins and then screwing the hollow pins.
4. And (5) performing fluoroscopy and reexamination through a C-shaped arm (G-arm) X-ray machine again, detaching the guider after confirming that the fracture position and the fixation condition are satisfied, closing the wound, and finishing the operation.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a thighbone neck fracture body surface location hollow nail director, characterized by: the positioning device comprises a positioning plate, wherein the upper end of the positioning plate is connected with a positioning sleeve which is obliquely arranged, the axis of the positioning sleeve forms an included angle of 135 degrees with the plate surface of the positioning plate and inclines towards one side of the positioning plate by 12-15 degrees, three insertion holes which are triangularly arranged are arranged in the positioning sleeve, and the inner diameter of each insertion hole is in clearance fit with the outer diameter of a hollow nail to be used; a guide inner sleeve is inserted into the jack through clearance fit respectively, the inner diameter of the guide inner sleeve is in clearance fit with the Kirschner wire to be used, and a positioning shoulder is arranged on the outer edge of one end of the guide inner sleeve and clamped at one end of the positioning sleeve; the other end of the guide inner sleeve penetrates through the jack and is uniformly provided with positioning teeth along the circumferential direction;
and a positioning structure is arranged between the guide inner sleeve and the corresponding jack and is used for positioning the guide inner sleeve after the guide inner sleeve is inserted.
2. The femoral neck fracture body surface positioning cannulated nail guider of claim 1, which is characterized in that: the locating sleeve is tapered for insertion into the body.
3. The femoral neck fracture body surface positioning cannulated nail guider of claim 1, which is characterized in that: the positioning structure comprises a positioning boss arranged at one end, close to the positioning circular bead, of the outer edge of the guide inner sleeve, an L-shaped clamping groove is formed in the inner wall of the insertion hole, corresponding to the insertion end of the guide inner sleeve, and the positioning boss is in clearance fit with the L-shaped clamping groove and clamped at the inner end of the L-shaped clamping groove.
4. The femoral neck fracture body surface positioning cannulated nail guider of claim 1, which is characterized in that: the lower surface of the positioning plate is connected with a base plate through a screw, and the base plate is provided with a positioning hole so as to facilitate the body surface positioning of the guider.
5. The femoral neck fracture body surface positioning cannulated nail guider of claim 4, which is characterized in that: the positioning plate is provided with a strip-shaped long hole along the longitudinal direction corresponding to the screw, so that the relative position of the positioning hole and the positioning sleeve can be conveniently adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818016.9U CN215018803U (en) | 2021-04-21 | 2021-04-21 | Femoral neck fracture body surface location hollow nail director |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120818016.9U CN215018803U (en) | 2021-04-21 | 2021-04-21 | Femoral neck fracture body surface location hollow nail director |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215018803U true CN215018803U (en) | 2021-12-07 |
Family
ID=79111466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120818016.9U Expired - Fee Related CN215018803U (en) | 2021-04-21 | 2021-04-21 | Femoral neck fracture body surface location hollow nail director |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215018803U (en) |
-
2021
- 2021-04-21 CN CN202120818016.9U patent/CN215018803U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20211207 |