CN111671511B - Femur far-end steel plate aiming device and aiming method thereof - Google Patents
Femur far-end steel plate aiming device and aiming method thereof Download PDFInfo
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- CN111671511B CN111671511B CN202010455394.5A CN202010455394A CN111671511B CN 111671511 B CN111671511 B CN 111671511B CN 202010455394 A CN202010455394 A CN 202010455394A CN 111671511 B CN111671511 B CN 111671511B
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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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
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention discloses a femur far-end steel plate aiming device and an aiming method thereof, wherein two second steel rails drive the distance between a femur steel plate and an aiming frame to be adjusted by rotating a rotating handle, a first spring in a first through groove in a first screw rod drives a first sliding sleeve to slide in the adjusting process, a second spring in a second through groove in a second screw rod drives a second sliding sleeve to slide, the distance adjustment between the first screw rod and the second screw rod is completed, a screw for fixing the femur steel plate on a femur sequentially passes through the first through groove on the first screw rod, a rod groove on a middle rod and the second through groove on the second screw rod, and then the screw fixes the femur steel plate on the femur, so that the distance between the aiming frame of the aiming device and the femur steel plate can be adjusted, an operator can fix the position of the aiming frame conveniently during operation, the problem that the distance between the femur steel plate and the aiming plate of the steel plate aiming device in the prior art is fixed is solved, cannot be adjusted and is not suitable for fixing the femoral steel plate from the far end.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a femur far-end steel plate aiming device and an aiming method thereof.
Background
There are many inappropriate activities in life that can cause fractures to occur, such as: when the femur is fractured from a high place, such as falling, vehicle collision, rolling and the like, the lower limb cannot move, the fracture part is seriously swollen and painful, deformity such as distortion or angulation can also occur, sometimes the length of the lower limb can be shortened, and the disease condition is more serious like open wound, so that the patient can be shocked, the femur is the largest bone of the whole body, and serious complications such as heavy bleeding, nerve injury and the like can be caused if the femur is not timely treated after the fracture.
The method has the advantages that no external fixation is needed after operation and early ambulation is needed, the method for driving the intramedullary needle into the upper part of the femur 1/3 or the middle part of the femur 1/3 is used, the closed needle threading method which is controlled by an X-ray television and only makes a small incision at the needle threading position and does not expose the fracture end is used for nearly ten years, the closed method has less open injury and less bleeding, does not damage the blood supply of the fracture end, is beneficial to fracture healing, and the fracture of 1/3 or middle part of the femur 1/3 is mainly moved by adopting a pressure steel plate.
The distance of being connected of traditional fixed steel sheet device's aiming frame and femoral steel sheet is fixed connection, and is unsuitable to carry out the femoral steel sheet from the distal end and fixes, and current steel sheet aiming device's the stability of aiming is not high simultaneously, and some deviations probably appear when using, probably lead to the condition of operating time extension, and it is inconvenient to dismantle when current steel sheet aiming device does not use simultaneously, accomodates inconveniently.
Disclosure of Invention
The invention aims to provide a femur far-end steel plate aiming device and an aiming method thereof, which solve the following technical problems: (1) through rotating the rotating handle, the rotating handle drives the screw rod to rotate, the screw rod is matched with the screw rod connecting block to drive the first moving rod to move, the first moving rod moves between the two first steel rails through the first guide wheels on the two sides, the first moving rod drives the two second cross rods to rotate through the two first cross rods, the second cross rods drive the second moving rod to move, the second moving rod moves between the two second steel rails through the second guide wheels on the two sides, further, the two second steel rails drive the distance adjustment between the femoral steel plate and the aiming frame, in the adjustment process, the first spring in the first through groove in the first screw rod drives the first sliding sleeve to slide, the second spring in the second through groove in the second screw rod drives the second sliding sleeve to slide, the distance adjustment between the first screw rod and the second screw rod is completed, and screws for fixing the femoral steel plate on a femur sequentially pass through the first through groove on the first screw rod, The distance between the aiming frame of the aiming device and the femoral steel plate can be adjusted through the structural arrangement, so that an operator can fix the position of the aiming frame during an operation conveniently, and the problems that the distance between the femoral steel plate and the aiming plate of the steel plate aiming device in the prior art is fixed, the adjustment cannot be performed, and the steel plate aiming device is not suitable for fixing the femoral steel plate from a far end are solved; (2) the second screw rod is screwed into the second aiming hole in the femoral steel plate, the first screw rod is screwed into the first aiming hole in the aiming frame, the middle rod is arranged between the aiming frame and the femoral steel plate to complete the fixation of the aiming frame and the femoral steel plate, and the first screw rod, the middle rod and the second screw rod are arranged to ensure the accurate alignment between the first aiming hole and the second aiming hole and solve the technical problem of low aiming stability of the steel plate aiming device in the prior art; (3) revolve and twist first screw rod, second screw rod after fixed completion, demolish first screw rod, well pole, second screw rod, and then accomplish dismantling of sighting frame, revolve wrong fastening bolt, take out fastening bolt from the locating hole on the sighting frame, and then take off the telescopic link from first rail and second rail in, accomplish the dismantlement of telescopic link, solve among the prior art steel sheet sighting device not convenient for after the use and accomodate the technical problem.
The purpose of the invention can be realized by the following technical scheme:
a femur far-end steel plate aiming device comprises an aiming frame and a femur steel plate, wherein the aiming frame is provided with four positioning holes, the aiming frame is provided with four first aiming holes, the femur steel plate is provided with four second aiming holes, two first steel rails are arranged on the aiming frame, a first moving rod is arranged between the two first steel rails in a sliding manner, a first rotating rod is arranged between the two first steel rails in a rotating manner, two first cross rods are rotatably arranged on the first moving rod, two second cross rods are rotatably arranged on the first moving rod, one end of the first cross rod, which is far away from the first moving rod, is rotatably connected with the second rotating rod, one end of the second cross rod, which is far away from the first rotating rod, is rotatably connected with the second moving rod, two second steel rails are rotatably connected to two sides of the second rotating rod, and the second moving rod is slidably arranged between the two second steel rails;
install two telescopic links on the first rail, first rail passes through the telescopic link and connects the second rail, first screw rod is installed to first sighting hole internal thread, first screw rod one end is connected with the mid-point pole, the mid-point pole is kept away from first screw rod one end and is installed the second screw rod, second screw rod threaded connection is the second sighting hole on the femoral steel plate.
Furthermore, in the second sighting hole on the second screw rod screw in femoral steel plate, in the first sighting hole on the first screw rod screw in sighting frame, the mid-point lever is arranged between the sighting frame and the femoral steel plate, the fixation of the sighting frame and the femoral steel plate is completed, two first steel rails are fixedly arranged at two ends of one side of the sighting frame, the two first steel rails are arranged in parallel, first guide wheels are arranged at two ends of each first moving rod, the first moving rods are connected with the first steel rails in a sliding mode through the first guide wheels, annular holes are formed in the first steel rails, and the first moving rods penetrate through the annular holes in the first steel rails.
Furthermore, a screw rod connecting block is installed on the first moving rod and is connected with a screw rod in a rotating mode, a rotating handle is installed at one end of the screw rod connecting block, two screw rod seats are installed on the sighting frame, and the screw rod is installed on the screw rod seats.
Further, the rotating handle is rotated to drive the screw rod to rotate, the screw rod is matched with the screw rod connecting block to drive the first moving rod to move, the first moving rod moves between the two first steel rails through the first guide wheels on the two sides, the first moving rod drives the two second cross rods to rotate through the two first cross rods, the second cross rods drive the second moving rod to move, the second moving rod moves between the two second steel rails through the second guide wheels on the two sides, further, the two second steel rails drive the distance between the femoral steel plate and the aiming frame to be adjusted, in the adjusting process, the first spring in the first through groove in the first screw rod drives the first sliding sleeve to slide, the second spring in the second through groove in the second screw rod drives the second sliding sleeve to slide, the distance adjustment between the first screw rod and the second screw rod is completed, and screws for fixing the femoral steel plate on the femur sequentially penetrate through the first through grooves in the first screw rod, The rod groove on the middle-placed rod and the second through groove on the second screw rod are used for fixing the femoral steel plate on the femur, the two second steel rails are arranged in parallel, the second guide wheels are arranged at the two ends of the second moving rod, the second moving rod is connected with the second steel rails in a sliding mode through the second guide wheels, annular holes are formed in the second steel rails, and the second rotating rod penetrates through the annular holes in the second steel rails.
Furthermore, four locating holes are symmetrically arranged on two sides of the aiming frame, fastening bolts are arranged in the locating holes, an inner groove is formed in one end, away from the second steel rail, of the telescopic rod, and the fastening bolts sequentially penetrate through the aiming frame and the first steel rail and are in threaded connection with the inner groove in the telescopic rod.
Furthermore, a connecting rod is arranged between the two first cross rods and the two second cross rods, and the connecting rod is arranged at the crossing position between the first cross rods and the second cross rods.
Furthermore, two limiting steels are installed on the first steel rail, and the two limiting steels are respectively installed on one side of the first steel rail and close to the two ends of the first steel rail.
Furthermore, a first through groove is formed in the first screw rod, a second through groove is formed in the second screw rod, a first sliding sleeve is arranged in the first through groove in the first screw rod in a sliding mode, and a second sliding sleeve is arranged in the second through groove in the second screw rod in a sliding mode.
Furthermore, a first through groove on the first screw rod is internally provided with two first springs, the two first springs are respectively arranged on the upper side and the lower side of the inner wall of the first through groove, the two first springs are respectively contacted with the upper end and the lower end of one side of the first sliding sleeve, a second through groove on the second screw rod is internally provided with two second springs, the two second springs are respectively arranged on the upper side and the lower side of the inner wall of the second through groove, the two second springs are respectively contacted with the upper end and the lower end of one side of the second sliding sleeve, the first sliding sleeve and the second sliding sleeve are respectively arranged at two ends of the middle rod, a rod groove is arranged in the middle rod, and two ends of the rod groove in the middle rod are respectively communicated with the first sliding sleeve and the second sliding sleeve, and.
Further, an aiming method of the femur far-end steel plate aiming device comprises the following steps:
the method comprises the following steps: screwing a second screw rod into a second aiming hole on the femoral steel plate, screwing a first screw rod into a first aiming hole on the aiming frame, and arranging the middle-placed rod between the aiming frame and the femoral steel plate to complete the fixation of the aiming frame and the femoral steel plate;
step two: the rotary handle is rotated to drive the screw rod to rotate, the screw rod is matched with the screw rod connecting block to drive the first moving rod to move, the first moving rod moves between the two first steel rails through the first guide wheels on two sides, the first moving rod drives the two second cross rods to rotate through the two first cross rods, the second cross rods drive the second moving rod to move, the second moving rod moves between the two second steel rails through the second guide wheels on two sides, further, the distance between the femoral steel plate and the aiming frame is adjusted through the two second steel rails, in the adjusting process, the first spring in the first through groove in the first screw rod drives the first sliding sleeve to slide, the second spring in the second through groove in the second screw rod drives the second sliding sleeve to slide, the distance adjustment between the first screw rod and the second screw rod is completed, and screws for fixing the femoral steel plate on a femur sequentially penetrate through the first through grooves in the first screw rod, A rod groove on the middle rod, a second through groove on the second screw rod and a screw are further used for fixing the femoral steel plate on the femur;
step three: and screwing the first screw rod and the second screw rod after fixing, detaching the first screw rod, the middle-placed rod and the second screw rod, further completing detachment of the sighting frame, screwing the fastening bolt, taking the fastening bolt out of the positioning hole in the sighting frame, further taking the telescopic rod out of the first steel rail and the second steel rail, and completing detachment of the telescopic rod.
The invention has the beneficial effects that:
(1) according to the alignment device and the alignment method of the femur far-end steel plate, the second screw rod is screwed into the second alignment hole in the femur steel plate, the first screw rod is screwed into the first alignment hole in the alignment frame, the middle rod is arranged between the alignment frame and the femur steel plate, the alignment frame and the femur steel plate are fixed, the first screw rod, the middle rod and the second screw rod are arranged, accurate alignment between the first alignment hole and the second alignment hole is guaranteed, and the alignment stability of the alignment device of the femur far-end steel plate is greatly improved;
(2) the rotary handle is rotated to drive the screw rod to rotate, the screw rod is matched with the screw rod connecting block to drive the first moving rod to move, the first moving rod moves between the two first steel rails through the first guide wheels on two sides, the first moving rod drives the two second cross rods to rotate through the two first cross rods, the second cross rods drive the second moving rod to move, the second moving rod moves between the two second steel rails through the second guide wheels on two sides, further, the distance between the femoral steel plate and the aiming frame is adjusted through the two second steel rails, in the adjusting process, the first spring in the first through groove in the first screw rod drives the first sliding sleeve to slide, the second spring in the second through groove in the second screw rod drives the second sliding sleeve to slide, the distance adjustment between the first screw rod and the second screw rod is completed, and screws for fixing the femoral steel plate on a femur sequentially penetrate through the first through grooves in the first screw rod, The rod groove on the middle-placed rod and the second through groove on the second screw rod further fix the femoral steel plate on the femur through the screw, through the arrangement of the structure, the distance between the aiming frame of the aiming device and the femoral steel plate can be adjusted, so that an operator can fix the position of the aiming frame during an operation, the distance between the femoral steel plate and the femur can be adjusted through rotating the aiming frame, the fixing of the femoral steel plate from the far end is suitable, and the practicability is high;
(3) revolve and twist first screw rod, second screw rod after fixed completion, demolish first screw rod, in put pole, second screw rod, and then accomplish dismantling of sighting frame, revolve wrong fastening bolt, take out fastening bolt from the locating hole on the sighting frame, and then take off the telescopic link from first rail and second rail, accomplish the dismantlement of telescopic link, through above structure setting for this sighting device can dismantle, and the taking in of sighting device when conveniently not using has certain convenience.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a femoral distal steel plate aiming device of the present invention;
FIG. 2 is an installation view of the present invention placement rod;
FIG. 3 is a structural view of the extension pole of the present invention;
FIG. 4 is a structural view of a femoral steel plate of the present invention;
FIG. 5 is an internal structural view of the center pole in the present invention;
FIG. 6 is a top view of the aiming block of the present invention;
FIG. 7 is an installation view of the connecting rod of the present invention;
FIG. 8 is a schematic view of the structure of a second steel bar according to the present invention
In the figure: 1. a sighting frame; 2. a femoral steel plate; 3. positioning holes; 4. fastening a bolt; 5. a telescopic rod; 51. an inner spiral groove; 6. a screw rod; 61. a screw base; 7. turning a handle; 8. a first steel rail; 9. a first movable bar; 91. a first guide wheel; 10. a first rotating lever; 11. a first aiming hole; 12. a screw rod connecting block; 13. a first cross bar; 14. a second crossbar; 15. a connecting rod; 16. a second movable bar; 161. a second guide wheel; 17. a second rotating lever; 18. a second steel rail; 19. a first screw; 191. a first through groove; 192. a first sliding sleeve; 20. a mid-set rod; 201. a rod groove; 21. a second screw; 211. a second through groove; 212. a second sliding sleeve; 22. a second aiming hole; 23. a first spring; 24. a second spring; 25. and (5) limiting steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention is a femur far-end steel plate aiming device, including an aiming frame 1 and a femur steel plate 2, the aiming frame 1 is provided with four positioning holes 3, the aiming frame 1 is provided with four first aiming holes 11, the femur steel plate 2 is provided with four second aiming holes 22, the aiming frame 1 is provided with two first steel rails 8, a first moving rod 9 is slidably disposed between the two first steel rails 8, a first rotating rod 10 is rotatably disposed between the two first steel rails 8, the first moving rod 9 is rotatably provided with two first cross rods 13, the first rotating rod 10 is rotatably provided with two second cross rods 14, one end of the first cross rod 13 far from the first moving rod 9 is rotatably connected with the second rotating rod 17, one end of the second cross rod 14 far from the first rotating rod 10 is rotatably connected with the second moving rod 16, two sides of the second rotating rod 17 are rotatably connected with the two second steel rails 18, the second moving rod 16 is slidably arranged between the two second rails 18;
install two telescopic links 5 on the first rail 8, first rail 8 passes through telescopic link 5 and connects second rail 18, and first screw rod 19 is installed to 11 internal threads in first sighting hole, and 19 one end of first screw rod are connected with middle-placed rod 20, and middle-placed rod 20 keeps away from 19 one end of first screw rod and installs second screw rod 21, and second screw rod 21 threaded connection is the second sighting hole 22 on the femoral steel plate 2.
Specifically, two first rail 8 fixed mounting in 1 one side both ends of aiming at frame, two first rail 8 mutual parallel arrangement, first leading wheel 91 is all installed at first carriage release lever 9 both ends, and first carriage release lever 9 has seted up the annular hole through first leading wheel 91 first rail 8 of sliding connection on the first rail 8, and first rotor lever 10 runs through the annular hole on the first rail 8. The first moving rod 9 is provided with a screw rod connecting block 12, the screw rod connecting block 12 is rotatably connected with a screw rod 6, one end of the screw rod connecting block 12 is provided with a rotating handle 7, the sighting frame 1 is provided with two screw rod seats 61, and the screw rod 6 is arranged on the screw rod seats 61. Two second rail 18 parallel arrangement each other, second leading wheel 161 is all installed at second carriage release lever 16 both ends, and second carriage release lever 16 passes through second leading wheel 161 sliding connection second rail 18, has seted up the annular hole on the second rail 18, and second dwang 17 runs through the annular hole on the second rail 18. Four locating holes 3 are symmetrically arranged at two sides of the aiming frame 1, fastening bolts 4 are arranged in the locating holes 3, an inner screw groove 51 is formed at one end, away from the second steel rail 18, of the telescopic rod 5, and the fastening bolts 4 sequentially penetrate through the aiming frame 1, the first steel rail 8 and are in threaded connection with the inner screw groove 51 on the telescopic rod 5. A connecting rod 15 is provided between the two first cross bars 13 and the two second cross bars 14, and the connecting rod 15 is attached to the crossing position between the first cross bar 13 and the second cross bar 14. Two limiting steels 25 are arranged on the first steel rail 8, and the two limiting steels 25 are respectively arranged at positions close to two ends on one side of the first steel rail 8. A first through groove 191 is formed in the first screw rod 19, a second through groove 211 is formed in the second screw rod 21, a first sliding sleeve 192 is arranged in the first through groove 191 on the first screw rod 19 in a sliding mode, and a second sliding sleeve 212 is arranged in the second through groove 211 on the second screw rod 21 in a sliding mode. Two first springs 23 are arranged in a first through groove 191 on the first screw rod 19, the two first springs 23 are respectively arranged on the upper side and the lower side of the inner wall of the first through groove 191, the two first springs 23 respectively contact the upper end and the lower end of one side of the first sliding sleeve 192, two second springs 24 are arranged in a second through groove 211 on the second screw rod 21, the two second springs 24 are respectively arranged on the upper side and the lower side of the inner wall of the second through groove 211, the two second springs 24 respectively contact the upper end and the lower end of one side of the second sliding sleeve 212, the first sliding sleeve 192 and the second sliding sleeve 212 are respectively arranged at the two ends of the middle rod 20, a rod groove 201 is arranged in the middle rod 20, and the two ends of the rod groove 201 in the middle rod 20 are respectively communicated with the first sliding sleeve 192 and the second sliding sleeve.
Referring to fig. 1 to 8, the working process of the distal femur steel plate aiming device of the present embodiment is as follows:
the method comprises the following steps: screwing a second screw 21 into a second aiming hole 22 on the femoral steel plate 2, screwing a first screw 19 into a first aiming hole 11 on the aiming frame 1, and placing the middle rod 20 between the aiming frame 1 and the femoral steel plate 2 to complete the fixation of the aiming frame 1 and the femoral steel plate 2;
step two: rotating the rotating handle 7, the rotating handle 7 drives the screw rod 6 to rotate, the screw rod 6 drives the first moving rod 9 to move by matching with the screw rod connecting block 12, the first moving rod 9 moves between two first steel rails 8 through the first guide wheels 91 on two sides, the first moving rod 9 drives two second cross rods 14 to rotate through two first cross rods 13, the second cross rods 14 drive the second moving rods 16 to move, the second moving rod 16 moves between two second steel rails 18 through the second guide wheels 161 on two sides, further, the two second steel rails 18 drive the distance between the femoral steel plate 2 and the aiming frame 1 to adjust, in the adjusting process, the first spring 23 in the first through groove 191 in the first screw rod 19 drives the first sliding sleeve 192 to slide, the second spring 24 in the second through groove 211 in the second screw rod 21 drives the second sliding sleeve 212 to slide, and the distance between the first screw rod 19 and the second screw rod 21 is adjusted, a screw for fixing the femoral steel plate 2 on the femur sequentially passes through a first through groove 191 on the first screw rod 19, a rod groove 201 on the middle rod 20 and a second through groove 211 on the second screw rod 21, and then the screw fixes the femoral steel plate 2 on the femur;
step three: and after the fixation is finished, screwing the first screw rod 19 and the second screw rod 21, detaching the first screw rod 19, the middle-placed rod 20 and the second screw rod 21, further completing the detachment of the sighting frame 1, screwing the fastening bolt 4, taking out the fastening bolt 4 from the positioning hole 3 on the sighting frame 1, further taking down the telescopic rod 5 from the first steel rail 8 and the second steel rail 18, and completing the detachment of the telescopic rod 5.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (7)
1. The utility model provides a thighbone distal end steel sheet sighting device, its characterized in that, includes aiming frame (1) and thighbone steel sheet (2), four locating holes (3) have been seted up on aiming frame (1), four first sighting hole (11) have been seted up on aiming frame (1), four second sighting hole (22) have been seted up on thighbone steel sheet (2), install two first rail (8) on aiming frame (1), it is provided with first carriage release lever (9) to slide between two first rail (8), rotates between two first rail (8) and is provided with first dwang (10), rotate on first carriage release lever (9) and install two first crossbar (13), rotate on first dwang (10) and install two second crossbar (14), first crossbar (13) are kept away from first carriage release lever (9) one end and are rotated and are connected second dwang (17), one end, far away from the first rotating rod (10), of the second cross rod (14) is rotatably connected with a second moving rod (16), two sides of the second rotating rod (17) are rotatably connected with two second steel rails (18), and the second moving rod (16) is arranged between the two second steel rails (18) in a sliding mode;
two telescopic rods (5) are mounted on the first steel rail (8), the first steel rail (8) is connected with a second steel rail (18) through the telescopic rods (5), a first screw rod (19) is mounted in the first aiming hole (11) through internal threads, one end of the first screw rod (19) is connected with a middle rod (20), a second screw rod (21) is mounted at one end, far away from the first screw rod (19), of the middle rod (20), and the second screw rod (21) is in threaded connection with a second aiming hole (22) in the femoral steel plate (2);
a first through groove (191) is formed in the first screw (19), a second through groove (211) is formed in the second screw (21), a first sliding sleeve (192) is arranged in the first through groove (191) in the first screw (19) in a sliding manner, and a second sliding sleeve (212) is arranged in the second through groove (211) in the second screw (21) in a sliding manner;
two first springs (23) are arranged in a first through groove (191) on the first screw rod (19), the two first springs (23) are respectively arranged at the upper side and the lower side of the inner wall of the first through groove (191), the two first springs (23) are respectively contacted with the upper end and the lower end of one side of the first sliding sleeve (192), two second springs (24) are arranged in a second through groove (211) on the second screw rod (21), the two second springs (24) are respectively arranged on the upper side and the lower side of the inner wall of the second through groove (211), the two second springs (24) are respectively contacted with the upper end and the lower end of one side of a second sliding sleeve (212), the first sliding sleeve (192) and the second sliding sleeve (212) are respectively arranged at two ends of the middle rod (20), a rod groove (201) is formed in the middle-placed rod (20), and two ends of the rod groove (201) in the middle-placed rod (20) are respectively communicated with the first sliding sleeve (192) and the second sliding sleeve (212).
2. The distal femoral steel plate aiming device according to claim 1, wherein two first steel rails (8) are fixedly installed at two ends of one side of the aiming frame (1), the two first steel rails (8) are arranged in parallel, first guide wheels (91) are installed at two ends of each first movable rod (9), the first movable rods (9) are slidably connected with the first steel rails (8) through the first guide wheels (91), annular holes are formed in the first steel rails (8), and the first movable rods (10) penetrate through the annular holes in the first steel rails (8).
3. The aiming device for the steel plate at the distal end of femur of claim 1, wherein the first movable rod (9) is provided with a lead screw connecting block (12), the lead screw connecting block (12) is rotatably connected with a lead screw (6), one end of the lead screw connecting block (12) is provided with a rotating handle (7), the aiming frame (1) is provided with two lead screw bases (61), and the lead screw (6) is arranged on the lead screw bases (61).
4. The femur distal steel plate aiming device according to claim 1, wherein two second steel rails (18) are arranged in parallel, a second guide wheel (161) is installed at each end of the second moving rod (16), the second moving rod (16) is slidably connected with the second steel rails (18) through the second guide wheel (161), an annular hole is formed in each second steel rail (18), and the second rotating rod (17) penetrates through the annular hole in each second steel rail (18).
5. The alignment device for the steel plate at the distal end of the femur of claim 1, wherein four positioning holes (3) are symmetrically arranged on both sides of the alignment frame (1), fastening bolts (4) are arranged in the positioning holes (3), an inner groove (51) is formed in one end of the telescopic rod (5) far away from the second steel rail (18), and the fastening bolts (4) sequentially penetrate through the alignment frame (1) and the first steel rail (8) and are in threaded connection with the inner groove (51) on the telescopic rod (5).
6. The femoral distal steel plate aiming device according to claim 1, characterized in that a connecting rod (15) is arranged between the two first cross rods (13) and the two second cross rods (14), and the connecting rod (15) is installed at the crossing position between the first cross rods (13) and the second cross rods (14).
7. The distal femoral steel plate aiming device according to claim 1, wherein two limiting steels (25) are mounted on the first steel rail (8), and the two limiting steels (25) are respectively mounted on one side of the first steel rail (8) near two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455394.5A CN111671511B (en) | 2020-05-26 | 2020-05-26 | Femur far-end steel plate aiming device and aiming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010455394.5A CN111671511B (en) | 2020-05-26 | 2020-05-26 | Femur far-end steel plate aiming device and aiming method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111671511A CN111671511A (en) | 2020-09-18 |
| CN111671511B true CN111671511B (en) | 2021-02-05 |
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| CN202010455394.5A Active CN111671511B (en) | 2020-05-26 | 2020-05-26 | Femur far-end steel plate aiming device and aiming method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008347A (en) * | 2010-11-23 | 2011-04-13 | 马丽昕 | Ponze steel plate with lock and aiming fixing device |
| CN202113163U (en) * | 2011-06-23 | 2012-01-18 | 曲军杰 | Bone traction steel needle punching positioning device |
| US20160045238A1 (en) * | 2014-08-13 | 2016-02-18 | Biomet C.V. | Calcaneal bone plate targeting guide |
| CN206815786U (en) * | 2017-05-19 | 2017-12-29 | 温州博富市政建筑工程有限公司 | A kind of construction site climbing device |
| CN209864022U (en) * | 2019-01-25 | 2019-12-31 | 河北医科大学第三医院 | Thighbone LISS steel plate sighting device |
| CN209734122U (en) * | 2019-02-19 | 2019-12-06 | 慈溪市人民医院 | Temporary fixing device for Kirschner wire |
| CN210012556U (en) * | 2019-06-13 | 2020-02-04 | 江苏欧阳照明有限公司 | Lift truck for street lamp installation |
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