CN111991071B - Hollow nail guider of thighbone neck - Google Patents
Hollow nail guider of thighbone neck Download PDFInfo
- Publication number
- CN111991071B CN111991071B CN202010871748.4A CN202010871748A CN111991071B CN 111991071 B CN111991071 B CN 111991071B CN 202010871748 A CN202010871748 A CN 202010871748A CN 111991071 B CN111991071 B CN 111991071B
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- Prior art keywords
- hollow
- nail
- hollow nail
- main part
- part frame
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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
-
- 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
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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
Abstract
The invention discloses a hollow femoral neck nail guiding device, which comprises a main body frame, wherein an opening is formed in the main body frame, a positioning rod is inserted into the opening, a threaded cylindrical table is arranged on the main body frame, the threaded cylindrical table and the main body frame are fixedly connected and immovable, a hollow nail force applicator is meshed on the threaded cylindrical table, the main body frame also comprises an instrument table, the instrument table comprises a connecting ring, a connecting plate and a sector disc, the connecting plate is also provided with the sector disc, the sector disc is provided with a channel for fixing hollow nails, the channel is annularly and uniformly distributed on the surface of the sector disc, the channel can be used for placing the hollow nails and limiting the displacement of the hollow nails, after the structure is adopted, the hollow nail guiding device for the hollow nails is quickly implanted, the hollow screws are placed in the device guiding disc before implantation, the position and the direction are determined in advance, and the accuracy of the.
Description
Technical Field
The invention relates to a medical instrument, in particular to a femoral neck hollow nail guiding device.
Background
The neck fracture of femur is the most common injury of hip, the onset is only after the distal fracture of radius in the fracture of whole body, the fracture has greater displacement more than 90%, and because the leverage at the fracture is bigger, the skeleton is unstable, mostly adopt the operation treatment, at present, the scheme that medical staff chooses under the general condition has 1, slidingtype internal fixation: the existing compression nails or needles of various types are arranged in a special sleeve to slide, when absorption gaps are formed on two sides of a fracture line, the nails slide and shorten in the sleeve to keep the fracture ends to be closely contacted, so that the insertion of the fracture ends is more facilitated, 2, the compression type internal fixation is adopted, the method adopts a pressurizing device, the fracture ends can be mutually embedded and tightly to facilitate the healing, and the femoral neck fracture is treated by adopting a closed reduction hollow screw internal fixation method, before the hollow screw is implanted, the fracture part is firstly subjected to X-ray scanning analysis, the operation needle insertion is carried out after the specific condition of the fracture is determined, firstly, a doctor inserts a first guide pin into the operation part, and then inserts a subsequent hollow nail after the position is fixed, because the femoral neck is not exposed in the operation, after the first guide pin is inserted, the hollow nail can not be ensured to be arranged at an ideal position due to the lack of necessary reference, and the nail penetration is usually required for many times, repeated nailing can also lead to unreliable fixation of the fracture and high requirements on the experience of the operator.
Disclosure of Invention
The invention aims to solve the technical problem of providing a femoral neck hollow nail guiding device which can accurately and quickly realize the implantation of a hollow screw.
A thighbone neck hollow nail guider, includes the main part frame, be equipped with the trompil on the main part frame, alternate the location stick in the trompil, the location stick can reciprocate in the trompil, location stick and main part frame cooperation mode are swing joint, be equipped with screw thread cylinder platform on the main part frame, screw thread cylinder platform and main part frame be fixed connection, can not remove, the meshing has hollow nail power application ware on the screw thread cylinder platform, and hollow nail power application ware accessible screw thread reciprocates, hollow nail power application ware divide into application of force portion, atress portion, meshing portion, application of force portion is in main part frame one side, and atress portion and meshing portion are at the opposite side, and the atress portion top sets up hollow nail, and hollow nail and atress portion are bolted connection and can dismantle, the main part frame still includes instrument desk, instrument desk includes clamping ring, connecting plate, sector disc, the clamping ring adopts clearance fit with the main part frame, the connecting ring can move on the main body frame, be equipped with compound recess on the connecting plate, when hollow nail power application device and instrument desk laminating, the bolt on the hollow nail power application device is placed in compound recess, the connecting plate still is equipped with the sector disc, and the sector disc is equipped with the channel, and the annular evenly distributed of fan-shaped central angle is followed on the sector disc surface to the channel, the hollow nail can be placed to the channel and its displacement is restricted.
Preferably, the main body frame be the L type, main body frame right angle department of bending be the hinge joint, but right-angle side rotary regulation makes things convenient for the doctor to realize more accurate location.
Preferably, the threaded cylindrical table and the main body frame are in clearance fit, so that space is saved.
Preferably, the section of the force application part is circular, the diameter of the force application part is 25-30mm, and the composite ergonomics is realized.
Preferably, the stress part is provided with a first rectangular groove, and the screw cap and the gasket are placed in the groove, so that unified management is facilitated.
Preferably, the connecting plate is provided with a second rectangular groove, and the instrument panel is adjusted according to needs, so that higher-precision adjustment is realized.
Preferably, the hollow nail force applicator rotates 360 degrees along the thread, and the displacement of the hollow nail in the vertical direction is 0.1mm, so that the hollow nail force applicator is beneficial to the operation of doctors.
Preferably, one end of the stress part is provided with an installation step, so that the stability of the structure is enhanced, and the whole weight of the device is saved.
Compared with the prior art, after the device is adopted, the hollow nail placing efficiency of medical staff is greatly improved, unnecessary injury to a patient caused by inaccurate hollow nail placing is reduced, and the recovery rate of the patient is improved.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a bottom view of the present invention.
Detailed Description
The invention is further described below with reference to fig. 1-3.
As shown in figures 1-3, a femoral neck hollow nail guiding device comprises a main body frame, wherein an opening is arranged on the main body frame, a positioning rod 1 is inserted in the opening, the positioning rod 1 can move up and down in the opening, the positioning rod 1 is movably connected with the main body frame in a matching mode, a threaded cylindrical table 7 is arranged on the main body frame, the threaded cylindrical table 7 is movably connected with the main body frame, a hollow nail force applying device is engaged on the threaded cylindrical table 7 and can move up and down through threads, the hollow nail force applying device is divided into a force applying part 5, a force receiving part 6 and an engaging part 13, the force applying part 5 is arranged on one side of the main body frame, the force receiving part 6 and the engaging part 13 are arranged on the other side, a hollow nail 9 is arranged at the top end of the force receiving part 6, the hollow nail 9 and the force receiving part 6 are in bolted connection and can be disassembled, the main body frame further comprises an instrument platform, the instrument platform comprises a, the connecting ring 12 can move on the main body frame, the connecting plate is provided with a groove 8, when the hollow nail force applying device is attached to an instrument desk, a bolt on the hollow nail force applying device is arranged in the groove 8, the connecting plate 14 is further provided with a sector disc 11, the sector disc 11 is provided with a plurality of channels 15, the plurality of channels 15 are uniformly distributed on the surface of the sector disc 11 along the annular shape of a sector central angle, and the channels 15 can be used for placing the hollow nails 9 and limiting the displacement of the hollow nails.
When in specific implementation, the method comprises the following steps: referring to fig. 1-3, before the operation, the pre-adjusting device, the positioning rod 1 is inserted into the through hole of the main frame 1, the main frame 1 is installed with the set screw 2, the set screw 2 is rotated clockwise, the set screw 2 is loosened, one end of the set screw 2 leaves the positioning rod, the positioning rod can move up and down, after the positioning rod 1 is inserted into the femoral shaft, the set screw 2 is adjusted counterclockwise, the set screw 2 is screwed, the positioning rod is immovable in position, the main frame part is the main frame horizontal part 3 and the main frame vertical part 4, the positioning rod 1 is installed on the main frame horizontal part 3, the main frame vertical part 4 is installed with the threaded cylindrical table 7, the hollow nail force applicator and the instrument table, the cross section of the threaded cylindrical table 7 is circular, the threaded cylindrical table is in clearance fit with the main frame vertical part, during the actual operation, the doctor moves up and down the threaded cylindrical table 7 according to the estimated hitting point, the threaded cylindrical table 7 can be stopped at any place of the vertical part of the main body frame by surface pretightening force generated by clearance fit, the threaded cylindrical table 7 can realize displacement with a large distance of 5-50mm in the vertical direction, when a doctor needs to realize a small displacement function, the hollow nail force application part 5 is held, the section of the part is circular, the diameter of the part is 25-30mm, an operator can better apply force when holding, the hollow nail force application part 5 is pushed anticlockwise, the hollow nail 9 loaded on the stress part after the part rotates can rotate along with the hollow nail force application part and rises in the vertical height direction, the rotation precision of the part is 0.5mm, namely after the part rotates for 360 degrees, the displacement of the hollow nail 9 in the vertical direction is 0.5mm, the hollow nail 9 is installed on the stress part 6, the section of the stress part 6 is in a step shape, wherein the hollow nail installation step is provided with a groove 8, the hollow nail 9 is provided with a tail end bolt, the part and the bolt are placed in the groove 8 together, and meanwhile, the area of the groove 8 is far larger than that of the bolt, so that the disassembly and assembly of medical personnel are facilitated.
Still install the instrument desk on the main part frame, wherein clamping ring 12 and main part frame cooperation installation, the cooperation mode between clamping ring 12 and the main part frame is interference fit, wherein, the instrument desk is realized reciprocating by the clamping ring, medical personnel carry out the small adjustment of instrument desk displacement from top to bottom according to the demand, the instrument desk is divided into clamping ring 12, connecting plate 14, sector disc 11, be equipped with second recess 10 on the connecting plate, the screw that is used for holding stress part when the cooperation surpasss the panel part, sector disc surface distribution has even channel 15, scale interval is 10 between every channel 15, be divided into 36 channels 15 promptly, hollow nail is placed in channel 15 by the cooperation, the range of adjustment is 10 every time, sector disc 11 is the customization piece, adjust according to different operation required precision, for example, can set up channel 15 scale interval to 5.
The specific adjustment method is as follows: after medical personnel confirm that hollow nail 9 inserts roughly the position, this step can be without specific certain stress point on accurate femoral shaft, promote connecting ring 12 to hollow nail 9 and insert roughly fixed behind the position, keep the panel board position motionless, if hollow nail power application ware is nearer apart from the instrument desk, then rotatory hollow power application ware can finely tune, if the distance is far away, then adjust threaded cylindrical table 7 and carry out the adjustment of big distance, after the debugging distance is suitable, rotate force application portion 5 angle of adjustment, hollow nail 9 sinks to in the channel 15 simultaneously, loosen the holding screw of hollow nail 9, hollow nail 9 can be by the interior femoral fracture department of beating of channel, realize the accurate of beating into of hollow nail.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (8)
1. A thighbone neck hollow nail guider, includes the main part frame, be equipped with the trompil on the main part frame, alternate location stick (1) in the trompil, location stick (1) can reciprocate in the trompil, location stick (1) and main part frame cooperation mode are swing joint, be equipped with screw thread cylinder platform (7) on the main part frame, screw thread cylinder platform (7) and main part frame are swing joint, the meshing has hollow nail power application ware on screw thread cylinder platform (7), hollow nail power application ware accessible screw thread reciprocates, hollow nail power application ware divide into application of force portion (5), atress portion (6), meshing portion (13), application of force portion (5) is in main part frame one side, and atress portion (6) and meshing portion (13) are at the opposite side, and hollow nail (9) are set up on atress portion (6) top, and hollow nail (9) are bolted connection and can dismantle with atress portion (6), the main part frame still includes instrument desk, its characterized in that, instrument desk includes clamping ring (12), connecting plate (14), sector plate (11), clamping ring (12) adopt clearance fit with the main part frame, and clamping ring (12) can move on the main part frame, be equipped with recess (8) on the connecting plate, when hollow nail power application ware and instrument desk laminating, the bolt on the hollow nail power application ware is arranged in recess (8), connecting plate (14) still are equipped with sector plate (11), and sector plate (11) are equipped with many channels (15), and many channels (15) are at sector plate (11) surface along the cyclic annular evenly distributed of fan-shaped central angle, hollow nail (9) can be placed in channel (15) and its displacement is restricted.
2. The femoral neck cannulated nail guide device of claim 1, wherein the main body frame is L-shaped and the right angle bend of the main body frame is hinged.
3. A femoral neck cannulated nail guide device according to claim 1, wherein the threaded cylindrical land (7) is a clearance fit with the body frame.
4. A femoral neck cannulated nail guide according to claim 1, wherein the force applying portion (5) is circular in cross-sectional shape and has a diameter of 25-30 mm.
5. The femoral neck cannulated nail guide device of claim 1, wherein the force receiving portion is provided with a groove (8) and the nut and washer are placed in the groove (8).
6. A femoral neck cannulated nail guide according to claim 1, wherein the web is provided with a second recess (10).
7. The femoral neck cannulated nail guide of claim 1, wherein the cannulated nail force applicator is threaded for 360 ° rotation and the cannulated nail is vertically displaced by 0.5 mm.
8. A femoral neck cannulated nail guide device according to claim 1, wherein the force receiving portion (6) is provided with a mounting step at one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010871748.4A CN111991071B (en) | 2020-08-26 | 2020-08-26 | Hollow nail guider of thighbone neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010871748.4A CN111991071B (en) | 2020-08-26 | 2020-08-26 | Hollow nail guider of thighbone neck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111991071A CN111991071A (en) | 2020-11-27 |
| CN111991071B true CN111991071B (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010871748.4A Active CN111991071B (en) | 2020-08-26 | 2020-08-26 | Hollow nail guider of thighbone neck |
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| Country | Link |
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| CN (1) | CN111991071B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113693702B (en) * | 2021-09-03 | 2022-08-16 | 邓迎生 | Head-on femoral neck hollow nail placing system based on individualized safety boundary |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006216759B2 (en) * | 2005-02-22 | 2011-11-17 | Smith & Nephew, Inc. | Instrument for targeting blocking screws |
| JP5497194B2 (en) * | 2009-12-11 | 2014-05-21 | スモール・ボーン・イノベーションズ・インコーポレーテッド | Ankle fusion device, instrument, and method |
| US8617176B2 (en) * | 2011-08-24 | 2013-12-31 | Depuy Mitek, Llc | Cross pinning guide devices and methods |
| CN104622560A (en) * | 2013-11-13 | 2015-05-20 | 明立德 | Femoral neck fracture fixing and positioning device |
| CN107822703B (en) * | 2017-11-24 | 2024-04-09 | 苏州市康力骨科器械有限公司 | Tibia adjustable intramedullary nail sighting device with lock |
| CN108309396A (en) * | 2018-02-28 | 2018-07-24 | 重庆英泰帝克科技有限公司 | Ankle fusion operation fixing glue hammers into drive system |
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- 2020-08-26 CN CN202010871748.4A patent/CN111991071B/en active Active
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| CN111991071A (en) | 2020-11-27 |
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