CN203483492U - Intramedullary nail far end threaded positioning fixing device - Google Patents
Intramedullary nail far end threaded positioning fixing device Download PDFInfo
- Publication number
- CN203483492U CN203483492U CN201320617062.8U CN201320617062U CN203483492U CN 203483492 U CN203483492 U CN 203483492U CN 201320617062 U CN201320617062 U CN 201320617062U CN 203483492 U CN203483492 U CN 203483492U
- Authority
- CN
- China
- Prior art keywords
- far end
- far
- positioning
- intramedullary nail
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 206010052428 Wound Diseases 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 201000010099 disease Diseases 0.000 abstract 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract 1
- 210000000689 upper leg Anatomy 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010043827 tibia fracture Diseases 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an intramedullary nail far end threaded positioning fixing device which comprises a positioning rod connected to the intramedullary nail far end, a far end positioning support, a far end guiding rod, a near end guiding rod and a handle. The far end guiding rod, the near end guiding rod and the handle are sequentially connected, one end, provided with threads, of the handle and the intramedullary nail near end are fixedly connected, the positioning rod is sleeved with a sleeve in a connecting mode, the positioning rod and the sleeve are fixed through a positioning clamping block, and the far end positioning support is connected with the positioning clamping block. External threads are formed at the bottom of the positioning rod, and the external threads at the bottom of the positioning rod are connected into a threaded hole in the intramedullary nail far end to conduct threaded locking. According to the intramedullary nail far end threaded positioning fixing device, the threaded hole is formed in the intramedullary nail far end, the effect of fixing the far end positioning support can be achieved, a locking screw is easily drilled, and the significance of reducing wounds and expanding adaptation diseases in clinic is achieved. The bottom of the positioning rod is screwed into the threaded hole in the positioning plane of the intramedullary nail far end, threaded locking is formed, a nail is not prone to being loosened, the fixing effect can be well achieved, the operation time is saved, and the intramedullary nail far end is stably fixed.
Description
Technical field
This utility model relates to a kind of operating theater instruments of inputting outside human body, is specifically related to a kind of fixture of locating for the intra medullary nail far-end screw thread of femur, the key stage casing of tibia fracture clinically.
Background technology
In the specific intramedullary pin operation for femur, the key stage casing of tibia fracture, intra medullary nail far-end locating surface far-end locating rod head design with holes used is cylindrical clinically at present, and body diameter is greater than intra medullary nail far-end locating surface diameter with holes, so the head of locating rod can only touch intra medullary nail far-end locating surface in operation, thereby it is stable not easily loosening in position fixing process head cannot to be inserted in the hole of locating surface to locating rod.Therefore the structure of existing intra medullary nail far-end locating surface far-end locating rod with holes exists disadvantage in clinical use.
Utility model content
This utility model, for the drawback of the far-end location structure of existing intra medullary nail far-end locating surface, provides a kind of easy for installation, the fixture that femur, the fixing intra medullary nail far-end screw thread of tibial intramedullary nailing far-end positioning stablity can be located.
In order to achieve the above object, this utility model adopts following technical scheme:
The fixture of intra medullary nail far-end screw thread of the present utility model location, comprise and be connected to far-end guide rod, near-end guide rod and the handle that locating rod, far-end locating rack and far-end locating rack T connector one end of intra medullary nail far-end are connected successively, the threaded one end of handle and intramedullary pin near-end are connected and fixed, locating rod outer cover is connected to sleeve pipe, and fix with positioning wedged block, far-end locating rack is connected with positioning wedged block.
The bottom of described locating rod is formed with external screw thread, and the far-end of intramedullary pin is provided with screwed hole, and the external screw thread of locating rod bottom is connected in screwed hole and carries out screw-threaded coupling.
Advantage and the good effect that the utlity model has are:
The fixture of intra medullary nail far-end screw thread of the present utility model location, femur, tibial intramedullary nailing far-end are provided with screwed hole, both can play the effect of stationary remote locating rack, be conducive to again squeezing into of intramedullary pin lock screw, have clinically the meaning that reduces wound, expands indication.Locating rod bottom can screw in the screwed hole of intra medullary nail far-end locating surface, forms screw-threaded coupling and is difficult for producing pine nail, can better play fixation, has not only saved operating time but also the stable intra medullary nail far-end of having fixed.
Accompanying drawing explanation
Fig. 1 is the structural representation of intramedullary pin in positioner of the present utility model;
Fig. 2 is the structural representation of locating rod in the fixture of intra medullary nail far-end screw thread of the present utility model location;
Fig. 3 is the structural representation of locating rod of the present utility model and intramedullary pin assembling;
Fig. 4 is the structure for amplifying schematic diagram of A portion in Fig. 3;
Fig. 5 is the assembly structure schematic diagram of the fixture of intra medullary nail far-end screw thread of the present utility model location.
Critical piece symbol description in accompanying drawing:
1: locating rod 2: intramedullary pin
3: positioning wedged block 4: sleeve pipe
5: far-end locating rack 6: far-end guide rod
7: near-end guide rod 8: handle
9: external screw thread 10: screwed hole.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the fixture of a kind of intra medullary nail far-end screw thread of the present utility model location is described further.Following each embodiment is only not limitation of the utility model for this utility model is described.
Fig. 1 is the structural representation of intramedullary pin in positioner of the present utility model; Fig. 2 is the structural representation of locating rod in the fixture of intra medullary nail far-end screw thread of the present utility model location; Fig. 3 is the structural representation of locating rod of the present utility model and intramedullary pin assembling; Fig. 4 is the structure for amplifying schematic diagram of A portion in Fig. 3; Fig. 5 is the assembly structure schematic diagram of the fixture of intra medullary nail far-end screw thread of the present utility model location.As shown in Figures 1 to 5, the fixture of intra medullary nail far-end screw thread of the present utility model location, comprises and is connected to far-end guide rod 6, near-end guide rod 7 and the handle 8 that locating rod 1, far-end locating rack 5 and far-end locating rack T connector one end of intramedullary pin 2 far-ends are connected successively.The threaded one end of handle 8 is connected with intramedullary pin near-end, and locating rod 1 outer cover is connected to sleeve pipe 4, and fixing with positioning wedged block 3, and far-end locating rack 5 is connected with positioning wedged block 3.
The bottom of locating rod 1 is formed with external screw thread 9, and the far-end of intramedullary pin 2 is provided with screwed hole 10, and the external screw thread 9 of locating rod bottom is connected in screwed hole 10 and carries out screw-threaded coupling, is difficult for producing pine nail, can better play fixation.
Further, the operating theater instruments fixed structure of femur, tibial intramedullary nailing 2 near-ends is: the threaded one end of handle 8 is fixing with being threaded in the U-shaped groove of intramedullary pin near-end, handle 8 other ends are connected with the narrower side of near-end guide rod 7, and T connector one side of near-end guide rod 7 and a thinner side of far-end guide rod 6 are fixedly connected with, thus the main anchor of the intramedullary pin operating theater instruments forming.
The operating theater instruments fixed structure of femur, tibial intramedullary nailing 2 far-ends is: intra medullary nail far-end is located--in screw thread navigation system, the device of locating rod 1 inserts that sleeve pipe 4 is interior to be fixed in the far-end positioning spiro pit 10 that simultaneously aims at femur, tibial intramedullary nailing 2 with positioning wedged block 3.Finally with far-end locating rack 5, main anchor is connected with the fixed support in femur, tibial intramedullary nailing 2 distal threads holes.The first end of type of far-end locating rack 5 is connected with far-end guide rod 6, and opposite side is stuck in the U-shaped groove of positioning wedged block 3 rear ends.Formed thus complete intramedullary pin operating theater instruments fixed support.
The fixture of intra medullary nail far-end screw thread of the present utility model location, the fracture site adopting at bone surgery is connected and fixed middle use, in operation, this fixture can be accurately by femur, stable the fixing with holes of tibial intramedullary nailing far-end locating surface, this device head can screw in the screwed hole of intra medullary nail far-end locating surface, thereby has not only saved operating time but also stable to have fixed intra medullary nail far-end locating surface with holes.The design of this apparatus structure is ingenious, can form with the straight hole screw thread of intra medullary nail far-end locating surface after screw-threaded coupling and screw-threaded coupling fixing-stable and be difficult for producing loosening in operation process, for femur, tibial intramedullary nailing far-end, is positioned with good fixation.In addition the structure that straight hole screw thread is worn in femur, tibial intramedullary nailing far-end location not only can play the effect of stationary remote locating rack but also be conducive to squeezing into of intramedullary pin lock screw.There is clinically the meaning that reduces wound, expanded indication.
Claims (2)
1. the fixture of intra medullary nail far-end screw thread location, comprise and be connected to far-end guide rod (6), near-end guide rod (7) and the handle (8) that locating rod (1), far-end locating rack (5) and far-end locating rack (5) T connector one end of intramedullary pin (2) far-end are connected successively, the threaded one end of handle (8) and intramedullary pin (2) near-end are connected and fixed, it is characterized in that: locating rod (1) outer cover is connected to sleeve pipe (4), and fixing with positioning wedged block (3), far-end locating rack (5) is connected with positioning wedged block (3).
2. the fixture that a kind of intra medullary nail far-end screw thread according to claim 1 is located, it is characterized in that: the bottom of locating rod (1) is formed with external screw thread (9), the far-end of intramedullary pin (2) is provided with screwed hole (10), and the external screw thread (9) of locating rod bottom is connected in screwed hole (10) and carries out screw-threaded coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617062.8U CN203483492U (en) | 2013-10-09 | 2013-10-09 | Intramedullary nail far end threaded positioning fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617062.8U CN203483492U (en) | 2013-10-09 | 2013-10-09 | Intramedullary nail far end threaded positioning fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203483492U true CN203483492U (en) | 2014-03-19 |
Family
ID=50254364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617062.8U Expired - Lifetime CN203483492U (en) | 2013-10-09 | 2013-10-09 | Intramedullary nail far end threaded positioning fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203483492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665915A (en) * | 2015-02-02 | 2015-06-03 | 江苏荷普医疗器械有限公司 | Interlocking intramedullary nail mounting instrument |
-
2013
- 2013-10-09 CN CN201320617062.8U patent/CN203483492U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665915A (en) * | 2015-02-02 | 2015-06-03 | 江苏荷普医疗器械有限公司 | Interlocking intramedullary nail mounting instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |