CN108938069B - Treatment device for femoral neck fracture - Google Patents
Treatment device for femoral neck fracture Download PDFInfo
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- CN108938069B CN108938069B CN201810527851.XA CN201810527851A CN108938069B CN 108938069 B CN108938069 B CN 108938069B CN 201810527851 A CN201810527851 A CN 201810527851A CN 108938069 B CN108938069 B CN 108938069B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/748—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck with means for adapting the angle between the longitudinal elements and the shaft axis of the femur
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Abstract
The invention relates to a medical instrument, in particular to a treatment device for femoral neck fracture in orthopedics department. A treatment device for femoral neck fracture in orthopedics department comprises an outer shell, a correction frame, a correction needle, a first bone nail, a second bone nail and a third bone nail; the first bone nail is used for fixedly arranging at the position below the greater trochanter of the femur, the third bone nail is used for fixedly arranging at the position in the middle of the femoral body, the second bone nail is used for fixedly arranging at the position above the lesser trochanter below the first bone nail, the needle tip end extension line of the correction needle is positioned in the femoral neck area, and through the action of the correction needle and the second bone nail, the acting force is applied at the fracture part of the femoral neck, so that the fracture risk is healed. The device of the invention has short operation time, simple operation, less pain for patients and less complication.
Description
Technical Field
The invention relates to a medical instrument, in particular to a femoral neck fracture treatment device.
Background
Femoral neck fractures often occur in the elderly, and the incidence of the fractures gradually increases with the life of the elderly, and especially with the aging population, the fractures become a serious social problem. Femoral neck fractures may occur in all ages, but the elderly over 50 years of age are most common, with women more than men. Trauma violence may be mild as it often occurs on the basis of osteoporosis. And fracture of femoral neck in middle and young age is often caused by great violence. The disability rate and the fatality rate of femoral neck fracture are high, and the disability rate and the fatality rate become one of the main threats to the reduction of the life quality or the death of the old.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a femoral neck fracture treatment device which has short operation time, simple operation, less pain for patients and less complications.
In order to achieve the purpose, the invention adopts the following technical scheme:
a femoral neck fracture treatment device comprises an outer shell, a correction frame, a correction needle, a first bone nail, a second bone nail and a third bone nail; the correcting frame is plate-shaped, two end parts of the correcting frame are respectively provided with a mounting opening, the first bone nail and the third bone nail are respectively arranged in the mounting openings through the first adjustable mounting seat and the second adjustable mounting seat, the first bone nail is used for being fixedly arranged at the position below the greater trochanter of the femur, and the third bone nail is used for being fixedly arranged at the middle position of the femoral body;
the first adjustable mounting seat comprises a first motor, a first screw rod, a first T-shaped sliding block, a first sliding rod, a first adapter, a second motor, a motor seat, a second screw rod, a second T-shaped sliding block and a second sliding rod; the first motor is arranged on one side of the mounting opening, the end part of the first screw rod is connected with the first motor and penetrates through screw rod mounting holes on two sides of the mounting opening, the first slide rod is erected on slide rod mounting openings on two sides of the mounting opening, a threaded opening and a shaft hole are formed in a protruding part of the first T-shaped slide block, the first screw rod penetrates through the threaded opening, and the first slide rod penetrates through the shaft hole; the two second sliding rods are erected between the first T-shaped sliding block and the motor base, the second T-shaped sliding block is arranged on the two second sliding rods in a penetrating mode, the second motor is arranged on the motor base, and the end portion of the second screw rod is connected with the second motor and penetrates through the motor base to be connected with a threaded hole in the second T-shaped sliding block; the side part of the second T-shaped sliding block is connected with the first adapter, and the first bone nail is fixedly arranged on the first adapter;
the second adjustable mounting seat comprises a third T-shaped sliding block, a third sliding rod, a second adapter, a third motor, a fourth sliding rod and a fourth T-shaped sliding block; the two third sliding rods are erected on the sliding rod mounting openings on two sides of the mounting opening, the third T-shaped sliding block is arranged on the two third sliding rods in a penetrating mode, a locking screw is arranged on one third sliding rod and locks the third T-shaped sliding block and the third sliding rod, the two fourth sliding rods are erected below the third T-shaped sliding block, the fourth T-shaped sliding block is arranged on the two fourth sliding rods in a penetrating mode, the fourth T-shaped sliding block and the fourth sliding rod are locked and positioned through the locking screw, the third motor is fixedly provided with the fourth T-shaped sliding block, and the third bone screw is connected and arranged on the third motor through a second adapter;
the middle part of the correcting frame is provided with an upward inclined through hole, the rear end of the through hole is provided with a thread head, the thread head is fixed on the rear side surface of the correcting frame, an inclined thread hole which is obliquely crossed with the through hole is arranged in the thread head, a screw rod at the rear end part of the second bone nail is arranged in the through hole and the inclined thread hole in a penetrating manner, and the second bone nail is used for being fixedly arranged above the small rotor below the first bone nail;
the correction frame around being provided with a contact pin hole around fenestrate to two sides at the correction frame are provided with the screw hole respectively, every screw hole corresponds a contact pin hole with one side, and the screw hole extends to corresponding contact pin hole, the correction needle setting in the contact pin hole, the internal diameter of contact pin hole is greater than the external diameter of correcting the needle, each correction needle slope upwards sets up, adjusts the terminal extension line of needle point after the angle and all lies in the femoral neck region, the back tip of correcting the needle is then fixed through the bolt locking of wearing to establish in the screw hole.
As a further improvement, the end part of the correction needle is provided with a cylindrical connector, the cylindrical connector is arranged in the contact pin hole, the side wall of the cylindrical connector is provided with a limiting hole, and the tail end of the bolt is arranged in the limiting hole.
As a further improvement, the through holes and the oblique threaded holes are arranged at an angle of 40-50 degrees with the correcting frame.
As a further improvement, a locking screw is arranged on the first T-shaped sliding block and used for locking the position of the first T-shaped sliding block on the first sliding rod, and a limiting screw is arranged on the second T-shaped sliding block and used for locking the position of the second T-shaped sliding block on the second sliding rod.
As a further improvement, first adapter include T type rotating head and connect the swivel nut, the side of second T type slider be provided with convex articulated mouth, the one end of T type rotating head be the cylindricality head, the cylindricality head articulates on the hinge interface, the one end of T type rotating head is the screw rod, connect swivel nut one end connect and set up on the screw rod, the one end setting of first bone screw move the other end of swivel nut to it is spacing to set up locking screw.
As a further improvement, the second adapter include connecting screw, remove the swivel nut and connect the swivel nut, connecting screw's one end with the third motor be connected, the other end with remove the screw hole in the swivel nut and be connected, connecting swivel nut one end connect and set up on removing swivel nut outside screw rod, the one end setting of third bone screw at the other end of connecting the swivel nut to it is spacing to set up locking screw.
According to the technical scheme, the positions and angles of the first bone nail, the second bone nail, the third bone nail and the correction needles can be adjusted through the motor, the correction needles can be finely adjusted in the pin inserting holes and then fixed through the bolts, when the correction device is used, the first bone nail is fixedly arranged at the position below a greater trochanter of a femur, the third bone nail is fixedly arranged at the middle position of the femoral body, the second bone nail is fixedly arranged at the position above a lesser trochanter below the first bone nail, the tip end extension lines of the correction needles are all positioned in the femoral neck area, after positioning is completed, the first bone nail, the second bone nail and the third bone nail are removed, acting force is applied to the femoral neck fracture part through the effect of the correction needles, and fracture risks are healed. The device of the invention has short operation time, simple operation, less pain for patients and less complication.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the first adjustable mount.
Fig. 4 is a schematic structural diagram of the second adjustable mount.
Fig. 5 is a schematic structural view of a second bone screw.
Fig. 6 is a schematic structural view of the correction needle.
FIG. 7 is a schematic structural diagram of the present invention in use.
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
The device for treating femoral neck fracture shown in fig. 1 and 2 comprises an correcting frame 1, a correcting needle 2, a first bone nail 3, a second bone nail 4 and a third bone nail 5. The correcting frame 1 is plate-shaped, two end parts of the correcting frame 1 are respectively provided with a mounting opening 11, the first bone nail 3 and the third bone nail 5 are respectively arranged in the mounting openings 11 through the first adjustable mounting seat 6 and the second adjustable mounting seat 7, the first bone nail 3 is used for being fixedly arranged at the position below the greater trochanter 91 of the femur 9, and the third bone nail 5 is used for being fixedly arranged at the middle position of the femoral body 92.
As shown in fig. 3, the first adjustable mounting base 6 includes a first motor 61, a first lead screw 62, a first T-shaped sliding block 63, a first sliding rod 64, a first adapter 65, a second motor 66, a motor base 67, a second lead screw 68, a second T-shaped sliding block 69 and a second sliding rod 60. First motor 61 set up in one side of installing port 11, the end connection first motor 61 of first lead screw 62 to wear to establish in the lead screw mounting hole of the both sides of installing port 11, first slide bar 64 erect on the slide bar installing port of the both sides of installing port 11, the bellying of first T type slider 63 is provided with screw thread mouth and shaft hole, first lead screw 62 passes the screw hole setting, first slide bar 64 passes the shaft hole setting. The two second sliding rods 60 are erected between the first T-shaped sliding blocks 63 and the motor base 67, the second T-shaped sliding blocks 69 are arranged on the two second sliding rods 60 in a penetrating mode, the second motor 66 is arranged on the motor base 67, and the end portion of the second screw rod 68 is connected with the second motor 66 and connected with a threaded hole in the second T-shaped sliding block 69 through the motor base 67. The side of the second T-shaped sliding block 69 is connected to the first rotating joint 65, and the first bone nail is fixedly arranged on the first rotating joint 65. As shown in fig. 3, the first T-shaped sliding block 63 is provided with a locking screw for locking the position of the first T-shaped sliding block 63 on the first sliding rod 64, and the second T-shaped sliding block 69 is provided with a limit screw for locking the position of the second T-shaped sliding block 69 on the second sliding rod 60. The first rotating head 65 comprises a T-shaped rotating head 651 and a connecting threaded sleeve 652, a convex hinged opening is formed in the side face of the second T-shaped sliding block 69, one end of the T-shaped rotating head 651 is a cylindrical head, the cylindrical head is hinged to the hinged opening, one end of the T-shaped rotating head 651 is a screw rod, one end of the connecting threaded sleeve 652 is connected and arranged on the screw rod, one end of the first bone nail 3 is arranged at the other end of the connecting threaded sleeve 652, and the first bone nail is limited by a locking screw.
As shown in fig. 4, the second adjustable mounting base 7 includes a third T-shaped sliding block 71, a third sliding rod 72, a second adapter 73, a third motor 74, a fourth sliding rod 75, and a fourth T-shaped sliding block 76. Two third slide bars 72 erect on the slide bar installing port of the both sides of installing port 11, third T type slider 71 wear to establish on two third slide bars 72 to be provided with locking screw on a third slide bar 72, locking screw locks third T type slider 71 and third slide bar 72, two fourth slide bar 75 erect in the below of third T type slider 71, fourth T type slider 76 wear to establish two fourth slide bar 75 on, pass through locking screw locking location at fourth T type slider 76 and fourth slide bar 75, third motor 74 fixed set up fourth T type slider 76, the third bone screw connect through second adapter 73 and set up on third motor 74. As shown in fig. 4, the second adapter 73 includes a connection screw 731, a movable screw sleeve 732 and a connection screw sleeve 733, one end of the connection screw 731 is connected to the third motor 74, the other end is connected to a screw hole in the movable screw sleeve 732, one end of the connection screw sleeve 733 is connected to a screw rod outside the movable screw sleeve 732, and one end of the third bone screw 5 is disposed at the other end of the connection screw sleeve 733 and is limited by a locking screw.
As shown in fig. 5, an upward oblique through hole 14 is provided in the middle of the correction frame 1, a screw head 9 is provided at the rear end of the through hole 14, the screw head 9 is fixed to the rear side of the correction frame 1, an oblique screw hole 91 is provided in the screw head 9 and is oblique to the through hole 14, and the through hole 14 and the oblique screw hole 91 are provided at an angle of 45 ° with the correction frame 1. The screw rod of the rear end part of the second bone nail 4 is arranged in the through hole 14 and the oblique threaded hole 91 in a penetrating way, and the second bone nail 4 is used for being fixedly arranged at the position above the small rotor 94 below the first bone nail 3.
As shown in fig. 1 and 2, the correcting frame 1 is provided with 6 pin holes 12 around the through hole 14, two side surfaces of the correcting frame 1 are respectively provided with a threaded hole 13, each threaded hole 13 corresponds to one pin hole 12 on the same side, the threaded hole 13 extends to the corresponding pin hole 12, the correcting pin 2 is arranged in the pin hole 12, the inner diameter of the pin hole 12 is larger than the outer diameter of the correcting pin 2, each correcting pin 2 is inclined and arranged upwards, the tail end extension line of the pin point is positioned in the femoral neck region 93 after the angle is adjusted, and the rear end part of the correcting pin 2 is locked and fixed by the bolt 8 penetrating through the threaded hole 13. As shown in fig. 6, the end of the correcting pin 2 is provided with a cylindrical connector 21, the cylindrical connector 21 is disposed in the pin hole 12, a limiting hole 22 is disposed on the sidewall of the cylindrical connector 21, and the end of the bolt 8 is disposed in the limiting hole 22.
As shown in fig. 7, when in use, the first bone nail 3 is fixedly arranged below the greater trochanter 91 of the femur, the third bone nail 5 is fixedly arranged in the middle of the femoral body 92, the second bone nail 4 is fixedly arranged above the lesser trochanter 94 below the first bone nail 3, the extension line of the needle point end of the correction needle 2 is positioned in the femoral neck 93 area, after the positioning is completed, the first bone nail, the second bone nail and the third bone nail are removed, and acting force is applied to the fracture of the femoral neck 93 under the action of the correction needle, so that the fracture gap is healed.
Claims (6)
1. A femoral neck fracture treatment device comprises a correction frame (1), a correction needle (2), a first bone nail (3), a second bone nail (4) and a third bone nail (5); it is characterized in that the preparation method is characterized in that,
the correcting frame (1) is plate-shaped, two end parts of the correcting frame (1) are respectively provided with a mounting opening (11), the first bone nail (3) and the third bone nail (5) are respectively arranged in the mounting openings (11) through a first adjustable mounting seat (6) and a second adjustable mounting seat (7), the first bone nail (3) is fixedly arranged at the position below a greater trochanter (91) of a femur (9), and the third bone nail (5) is fixedly arranged at the middle position of a femoral body (92);
the first adjustable mounting seat (6) comprises a first motor (61), a first screw rod (62), a first T-shaped sliding block (63), a first sliding rod (64), a first adapter (65), a second motor (66), a motor seat (67), a second screw rod (68), a second T-shaped sliding block (69) and a second sliding rod (60); the first motor (61) is arranged on one side of the mounting opening (11), the end part of the first screw rod (62) is connected with the first motor (61) and penetrates through screw rod mounting holes in two sides of the mounting opening (11), the first slide rod (64) is erected on the slide rod mounting openings in two sides of the mounting opening (11), a threaded opening and a shaft hole are formed in a protruding part of the first T-shaped slide block (63), the first screw rod (62) penetrates through the threaded opening, and the first slide rod (64) penetrates through the shaft hole; the two second sliding rods (60) are erected between the first T-shaped sliding blocks (63) and the motor base (67), the second T-shaped sliding blocks (69) penetrate through the two second sliding rods (60), the second motor (66) is arranged on the motor base (67), and the end part of the second screw rod (68) is connected with the second motor (66) and penetrates through the motor base (67) to be connected with a threaded hole in the second T-shaped sliding block (69); the side part of the second T-shaped sliding block (69) is connected with the first rotating joint (65), and the first bone nail is fixedly arranged on the first rotating joint (65);
the second adjustable mounting seat (7) comprises a third T-shaped sliding block (71), a third sliding rod (72), a second adapter (73), a third motor (74), a fourth sliding rod (75) and a fourth T-shaped sliding block (76); two third sliding rods (72) are erected on the sliding rod mounting openings on two sides of the mounting opening (11), a third T-shaped sliding block (71) is arranged on the two third sliding rods (72) in a penetrating mode, a locking screw is arranged on one third sliding rod (72) and used for locking the third T-shaped sliding block (71) and the third sliding rod (72), two fourth sliding rods (75) are erected below the third T-shaped sliding block (71), a fourth T-shaped sliding block (76) is arranged on the two fourth sliding rods (75) in a penetrating mode and used for locking and positioning the fourth T-shaped sliding block (76) and the fourth sliding rod (75) through the locking screw, a fourth T-shaped sliding block (76) is fixedly arranged on the third motor (74), and the third bone screws are connected and arranged on the third motor (74) through a second adapter (73);
an upward oblique through hole (14) is formed in the middle of the correcting frame (1), a threaded head (9) is arranged at the rear end of the through hole (14), the threaded head (9) is fixed to the rear side face of the correcting frame (1), an oblique threaded hole (91) which is obliquely crossed with the through hole (14) is formed in the threaded head (9), a screw rod at the rear end of the second bone nail (4) penetrates through the through hole (14) and the oblique threaded hole (91), and the second bone nail (4) is fixedly arranged above a small rotor (94) below the first bone nail (3);
correct frame (1) around being provided with 6 contact pin holes (12) around perforating (14) to two sides at correcting frame (1) are provided with screw hole (13) respectively, every screw hole (13) correspond one contact pin hole (12) with one side, screw hole (13) extend to corresponding contact pin hole (12), correction needle (2) set up in contact pin hole (12), the internal diameter of contact pin hole (12) is greater than the external diameter of correcting needle (2), each slope of correcting needle (2) upwards sets up, adjusts the terminal extension line of angle back needle point and all lies in thighbone neck region (93), the rear end portion of correcting needle (2) then is fixed through bolt (8) the locking of wearing to establish in screw hole (13).
2. A femoral neck fracture treatment device according to claim 1, wherein the end of the correction pin (2) is provided with a cylindrical connector (21), the cylindrical connector (21) is arranged in the pin hole (12), the side wall of the cylindrical connector (21) is provided with a limiting hole (22), and the tail end of the bolt (8) is arranged in the limiting hole (22).
3. A femoral neck fracture treatment device according to claim 1, wherein the through hole (14) and the oblique threaded hole (91) are arranged at an angle of 40-50 ° with the correction frame (1).
4. A femoral neck fracture treatment device according to claim 1, characterized in that the first T-shaped slider (63) is provided with a locking screw for locking the position of the first T-shaped slider (63) on the first slide bar (64), and the second T-shaped slider (69) is provided with a limit screw for locking the position of the second T-shaped slider (69) on the second slide bar (60).
5. The femoral neck fracture treatment device according to claim 1, wherein the first rotating joint (65) comprises a T-shaped rotating head (651) and a connecting threaded sleeve (652), a convex hinged opening is formed in the side surface of the second T-shaped sliding block (69), one end of the T-shaped rotating head (651) is a cylindrical head hinged to the hinged opening, one end of the T-shaped rotating head (651) is a screw rod, one end of the connecting threaded sleeve (652) is connected and arranged on the screw rod, one end of the first bone nail (3) is arranged at the other end of the connecting threaded sleeve (652) and is limited by a locking screw.
6. A femoral neck fracture treatment device according to claim 1, wherein the second adapter (73) comprises a connecting screw (731), a movable screw sleeve (732) and a connecting screw sleeve (733), one end of the connecting screw (731) is connected with the third motor (74), the other end of the connecting screw is connected with a screw hole in the movable screw sleeve (732), one end of the connecting screw sleeve (733) is connected and arranged on the screw rod outside the movable screw sleeve (732), one end of the third bone screw (5) is arranged at the other end of the connecting screw sleeve (733) and is provided with a locking screw for limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527851.XA CN108938069B (en) | 2018-05-29 | 2018-05-29 | Treatment device for femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527851.XA CN108938069B (en) | 2018-05-29 | 2018-05-29 | Treatment device for femoral neck fracture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108938069A CN108938069A (en) | 2018-12-07 |
| CN108938069B true CN108938069B (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527851.XA Active CN108938069B (en) | 2018-05-29 | 2018-05-29 | Treatment device for femoral neck fracture |
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| CN (1) | CN108938069B (en) |
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| CN105411658A (en) * | 2016-01-12 | 2016-03-23 | 南京医科大学附属南京医院 | Reposition device for femoral shaft fracture |
| CN205514847U (en) * | 2016-03-28 | 2016-08-31 | 刘明忱 | Three -dimensional cross bonding that fractures locks internal fixing device |
| CN205597996U (en) * | 2016-04-13 | 2016-09-28 | 吴迎春 | Thighbone near -end expands marrow locater |
| CN107149490A (en) * | 2017-05-18 | 2017-09-12 | 汤向阳 | A kind of complete positioner of artificial full hip-joint replacement |
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| CN108938069A (en) | 2018-12-07 |
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