CN209253081U - PFNA proximal femoral nail instrument - Google Patents
PFNA proximal femoral nail instrument Download PDFInfo
- Publication number
- CN209253081U CN209253081U CN201822054521.1U CN201822054521U CN209253081U CN 209253081 U CN209253081 U CN 209253081U CN 201822054521 U CN201822054521 U CN 201822054521U CN 209253081 U CN209253081 U CN 209253081U
- Authority
- CN
- China
- Prior art keywords
- guide rod
- proximal
- rod
- pfna
- retainer ring
- 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.)
- Active
Links
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to bone surgery equipment-technical fields, especially a kind of PFNA proximal femoral nail instrument, including proximal end sighting device and spike Far end sighting device, the casing of proximal end sighting device is equipped with fine-tuning nut and screw shell, fine-tuning nut is equipped with retainer ring, retainer ring is equipped with groove one, proximal end diopter is connected by end cap with retainer ring, proximal end diopter is equipped with lock screw and the positioning pin fixed with pin one, the lever upper end of spike Far end sighting device is connected by guide rod one and guide rod two, lever lower end is equipped with bone nail, guide rod two is equipped with locking bushing, locating rack one end and guide rod two connect, the other end is equipped with locating rod, locating rod includes handle and the body of rod, the body of rod is equipped with groove two.The design that groove is used on the utility model retainer ring, so that retainer ring is not easy to fall off, makes screw shell without shaking when fine-tuning nut moves up and down, and the sample nail or cubing, the body of rod that can accurately be inserted into client are equipped with groove, can limit the mobile distance of locating rod.
Description
Technical field
The utility model relates to bone surgery equipment technical field, especially a kind of PFNA proximal femoral nail instrument.
Background technique
Intertrochanteric fracture is a kind of common fracture of the elderly.Clinically there is following three features: first is that suffering from
Person is mostly advanced age, and systemic conditions are poor, and with a variety of internal medicine complication, these complication often have exacerbation after the fracture, lead
Disease treatment difficulty is caused to increase, case fatality rate is higher；Second is that bone mass, there is specific osteoporosis more, cause fracture fixation reliable
Property reduce；Third is that classification of fracture is mostly to crush unstable fracture, postoperative coxa vara, neck cripetura and interior fixed mistake easily occurs
Effect, fracture.Surgical operation is fixed as early as possible in treatment has become common recognition, and key is that provide one kind early period in union strong and steady
Fixed bridging apparatus makes patient's Go to ground activity as early as possible, reduces case fatality rate.When fractured near end of thighbone is fixed, proximal end is disconnected
Femoral axis directional at-tachment must be directed at by splitting section, that is, anti-displacement and rotation is kept to fix.
Clinically the proximal end used in the specific intramedullary nail operation fractured for femur, shin bone backbone middle section is fixed at present
Retainer ring is easy to fall off in use for instrument, influences using the locating rod of distal anchor is not sufficiently stable appearance in position fixing process
It easily loosens, therefore there is disadvantages in clinical use for the structure of the distal end locating rod of existing intra medullary nail far-end.
Utility model content
In order to overcome the shortcomings of existing PFNA proximal femoral nail technique with the apparatus, the utility model provides one kind
PFNA proximal femoral nail instrument.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of PFNA proximal femoral nail device
Tool, the spike distal end including the proximal end sighting device followed closely for fixing bone pin proximal neck and for fixing bone pin distal end cross locking nail are aimed at
Device, the proximal end sighting device include proximal end diopter, lock screw, retainer ring, end cap, fine-tuning nut, screw shell and casing, institute
It states and is provided with fine-tuning nut and screw shell on casing, retainer ring is provided on the fine-tuning nut, is provided on the retainer ring recessed
Slot one, the proximal end diopter are connected by end cap with retainer ring, are provided with lock screw and at least one on the proximal end diopter
A positioning pin fixed with pin one, the spike Far end sighting device includes client's cubing, locking bushing and locating rod, the visitor
Family cubing includes lever, guide rod one, guide rod two, bone nail and locating rack, and the lever upper end is connected by guide rod one and guide rod two,
The lever lower end is provided with bone nail, is provided at least one locking bushing on the guide rod two, described locating rack one end and leads
Bar two connects, and is provided with locating rod on the other end, the locating rod includes handle and the body of rod, is arranged on the body of rod fluted
Two.
It includes screwed pipe and flat tube that another embodiment according to the present utility model, which further comprises casing, and flat tube is arranged
In screwed pipe, flat tube section is semicircle shape.
Another embodiment according to the present utility model further comprises that fine-tuning nut is arranged in screwed pipe upper end, screw thread
Sleeve is arranged on screwed pipe top.
Another embodiment according to the present utility model further comprises that fine-tuning nut upper end is provided with diameter from top to bottom
The ladder being sequentially reduced, fine-tuning nut end are provided with the step for limiting retainer ring.
Another embodiment according to the present utility model further comprises that proximal end diopter bottom surface is arranged at intervals with two calmly
Position pin, lock screw are arranged between two positioning pins, and lock screw is close to right positioner pin.
Another embodiment according to the present utility model further comprises that end cap top is provided with spring and pin two, pin
Following closely a diameter is 3mm, and two diameter of pin is 2mm.
Another embodiment according to the present utility model, further comprise lever and guide rod one, guide rod one and guide rod two all
It is bolted, the adjustment hole for adjustment length is evenly arranged on guide rod one and guide rod two.
Another embodiment according to the present utility model further comprises that two right end of guide rod is arranged at intervals with two locking sets
Cylinder.
Another embodiment according to the present utility model further comprises locating rod perpendicular to locking casing and abuts bone
Nail.
It is carbon fiber that another embodiment according to the present utility model, which further comprises proximal end diopter material,.
The beneficial effects of the utility model are: the design of groove is used on the utility model retainer ring, above and below fine-tuning nut
When movement, so that retainer ring is not easy to fall off, so that screw shell can accurately be inserted into sample nail or the inspection of client without shaking
Tool, proximal end diopter use the material of carbon fiber, and material light-permeable under X-ray can be clearly seen that skin during operation
The position of lower steel plate is accurately drilled in fracture end, tapping and pedicle screw, is effectively protected soft tissue, reduces
Operating time improves procedure efficiency, reduces the probability of complication generation, accelerates patient's postoperation recovery, reduces patient's
Pain, the body of rod are equipped with groove two, can effectively limit the mobile distance of locating rod, locking bushing is made accurately to be inserted into bone nail
It is interior.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the proximal end sighting device structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that end cap is overlooked；
Fig. 3 is the structural schematic diagram of retainer ring side；
Fig. 4 is the structural schematic diagram in fine-tuning nut section；
Fig. 5 is the structural schematic diagram of spike Far end sighting device；
Fig. 6 is the structural schematic diagram of locating rod.
1, bone nail in figure, 2, proximal end diopter, 3, lock screw, 4, retainer ring, 5, end cap, 6, fine-tuning nut, 7, thread bush
Cylinder, 8, casing, 8-1, screwed pipe, 8-2, flat tube, 9, pin one, 10, positioning pin, 11, spring, 12, pin two, 13, groove one,
14, bolt, 15, locking bushing, 16, locating rod, 16-1, handle, 16-2, the body of rod, 17, lever, 18, guide rod one, 19, guide rod
Two, 20, adjustment hole, 21, locating rack, 22, groove two, 23, step.
Specific embodiment
If Fig. 1 is the structural schematic diagram of the utility model, a kind of PFNA proximal femoral nail instrument, including for fixing
It takes aim at proximal end described in the proximal end sighting device of 1 proximal neck of bone nail nail and the spike Far end sighting device for 1 distal end cross locking of fixing bone pin nail
Quasi- device includes proximal end diopter 2, lock screw 3, retainer ring 4, end cap 5, fine-tuning nut 6, screw shell 7 and casing 8, and proximal end is aimed at
2 material of frame is carbon fiber, and proximal end diopter 2 uses the material of carbon fiber, and material light-permeable under X-ray during operation may be used
Can be clearly seen that the position of subcutaneous steel plate, is accurately drilled in fracture end, tapping and pedicle screw, be effectively protected
Soft tissue reduces operating time, improves procedure efficiency, reduces the probability of complication generation, accelerates patient's postoperation recovery,
Reduce the pain of patient, diopter 2 bottom surface in proximal end is arranged at intervals with two positioning pins 10, and two positioning are arranged in lock screw 3
Between pin 10, for lock screw 3 close to right positioner pin 10, described sleeve pipe 8 includes screwed pipe 8-1 and flat tube 8-2, flat tube 8-2 set
It is located in screwed pipe 8-1, the section flat tube 8-2 is semicircle shape, is provided with fine-tuning nut 6 and screw shell 7 in described sleeve pipe 8, micro-
Adjust the setting of nut 6 in the upper end screwed pipe 8-1, the setting of screw shell 7 is provided on the top screwed pipe 8-1, the fine-tuning nut 6
Retainer ring 4, the proximal end diopter 2 are connected by end cap 5 and retainer ring 4, are provided with 3 He of lock screw on the proximal end diopter 2
At least one positioning pin 10 for using pin 1 fixed.
As shown in Fig. 2, 5 top of end cap is provided with spring 11 and pin 2 12, one 9 diameter of pin is 3mm, and pin 2 12 is straight
Diameter is 2mm.
As shown in figure 3, fluted 1 are arranged on the retainer ring 4, the design of groove is used on the utility model retainer ring 4,
When fine-tuning nut 6 moves up and down, so that retainer ring 4 is not easy to fall off, so that screw shell 7 is without shaking, it can be accurate
It is inserted into the sample nail or cubing of client.
As shown in figure 4,6 upper end of fine-tuning nut is provided with the ladder that diameter from top to bottom is sequentially reduced, 6 end of fine-tuning nut
It is provided with the step 23 for limiting retainer ring 4.
As shown in figure 5, the spike Far end sighting device includes client's cubing, locking bushing 15 and locating rod 16, the visitor
Family cubing includes lever 17, guide rod 1, guide rod 2 19, bone nail 1 and locating rack 21, and 17 upper end of lever passes through guide rod 1
It is connected with guide rod 2 19, lever 17 and guide rod 1, guide rod 1 and guide rod 2 19 are all fixed by bolt 14, one 18 He of guide rod
The adjustment hole 20 for adjustment length is evenly arranged on guide rod 2 19,17 lower end of lever is provided with bone nail 1, the guide rod
At least one locking bushing 15 is provided on 2 19,2 19 right end of guide rod is arranged at intervals with two locking bushings 15, the positioning
21 one end of frame and guide rod 2 19 connect, and locating rod 16 are provided on the other end, locating rod 16 is perpendicular to locking casing 8 and abuts bone
Nail 1.
As shown in fig. 6, the locating rod 16 is fluted including being arranged on handle 16-1 and the body of rod 16-2, the body of rod 16-2
2 22, body of rod 16-2 are equipped with groove 2 22, can effectively limit the mobile distance of locating rod 16, keep locking bushing 15 accurate
It is inserted into bone nail 1.
Working principle: it is proximal end close to heart end, is distal end far from heart end, during fixing bone pin 1, first uses
The neck of 1 proximal end of proximal end sighting device fixing bone pin is followed closely, after the cross locking of 1 distal end of bone nail is being followed closely using spike Far end sighting device, reach
The both ends of fixing bone pin 1 adjust the process that flat tube 8-2 moves up and down by the rotation of fine-tuning nut 6 during fixed neck nail
In, by the groove 1 on retainer ring 4, the movement of retainer ring 4 is limited, prevents retainer ring 4 from falling off, during fixed cross locking nail,
When 16 transverse shifting of locating rod, by the groove 2 22 on body of rod 16-2,16 moving range of locating rod is limited, locating rod 16 is prevented
It is mobile excessively to damage tissue, reduce healing time.
It is described above to be merely exemplary for the utility model, and not restrictive, those of ordinary skill in the art
Understand, in the case where not departing from spirit and scope as defined in the appended claims, many modifications can be made, change or wait
Effect, but all will fall within the protection scope of the utility model.
Claims (10)
1. a kind of PFNA proximal femoral nail instrument, including the proximal end sighting device and use for fixing bone pin (1) proximal neck nail
In the spike Far end sighting device of fixing bone pin (1) distal end cross locking nail, characterized in that the proximal end sighting device includes proximal end diopter
(2), lock screw (3), retainer ring (4), end cap (5), fine-tuning nut (6), screw shell (7) and casing (8), described sleeve pipe (8)
On be provided with fine-tuning nut (6) and screw shell (7), be provided with retainer ring (4) on the fine-tuning nut (6), on the retainer ring (4)
Fluted one (13) are set, and the proximal end diopter (2) is connected by end cap (5) and retainer ring (4), the proximal end diopter (2)
On be provided with lock screw (3) and at least one positioning pin (10) for using pin one (9) fixed, the spike Far end sighting device packet
Client's cubing, locking bushing (15) and locating rod (16) are included, client's cubing includes lever (17), guide rod one (18), guide rod
Two (19), bone nail (1) and locating rack (21), lever (17) upper end are connected by guide rod one (18) and guide rod two (19), institute
It states lever (17) lower end to be provided with bone nail (1), at least one locking bushing (15) is provided on the guide rod two (19), it is described fixed
Position frame (21) one end and guide rod two (19) connect, and are provided with locating rod (16) on the other end, the locating rod (16) includes handle
Fluted two (22) are arranged on the body of rod (16-2) in (16-1) and the body of rod (16-2).
2. PFNA proximal femoral nail instrument according to claim 1, characterized in that described sleeve pipe (8) includes screw thread
(8-1) and flat tube (8-2) are managed, flat tube (8-2) is set in screwed pipe (8-1), and the flat tube section (8-2) is semicircle shape.
3. PFNA proximal femoral nail instrument according to claim 1, characterized in that fine-tuning nut (6) setting
In the upper end screwed pipe (8-1), screw shell (7) is arranged on the top screwed pipe (8-1).
4. PFNA proximal femoral nail instrument according to claim 1, characterized in that fine-tuning nut (6) upper end
It is provided with the ladder that diameter from top to bottom is sequentially reduced, fine-tuning nut (6) end is provided with the step for limiting retainer ring (4)
(23).
5. PFNA proximal femoral nail instrument according to claim 1, characterized in that proximal end diopter (2) bottom
There are two positioning pin (10), lock screws (3) to be arranged between two positioning pins (10) for face interval setting, and lock screw (3) is close
Right positioner pin (10).
6. PFNA proximal femoral nail instrument according to claim 1, characterized in that end cap (5) the top setting
There are spring (11) and pin two (12), pin one (9) diameter is 3mm, and pin two (12) diameter is 2mm.
7. PFNA proximal femoral nail instrument according to claim 1, characterized in that the lever (17) and guide rod one
(18), guide rod one (18) and guide rod two (19) are all fixed by bolt (14), uniformly set on guide rod one (18) and guide rod two (19)
It is equipped with the adjustment hole (20) for adjustment length.
8. PFNA proximal femoral nail instrument according to claim 1, characterized in that between guide rod two (19) right end
Every setting, there are two locking bushing (15).
9. PFNA proximal femoral nail instrument according to claim 1, characterized in that the locating rod (16) perpendicular to
It locks casing (8) and abuts bone nail (1).
10. PFNA proximal femoral nail instrument according to claim 1, characterized in that proximal end diopter (2) material
Matter is carbon fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822054521.1U CN209253081U (en) | 2018-12-08 | 2018-12-08 | PFNA proximal femoral nail instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822054521.1U CN209253081U (en) | 2018-12-08 | 2018-12-08 | PFNA proximal femoral nail instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209253081U true CN209253081U (en) | 2019-08-16 |
Family
ID=67562369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822054521.1U Active CN209253081U (en) | 2018-12-08 | 2018-12-08 | PFNA proximal femoral nail instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209253081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641496A (en) * | 2020-12-24 | 2021-04-13 | 宿迁市浩欣机械有限公司 | PFNA femoral intramedullary nail short nail bracket |
| CN113855208A (en) * | 2021-10-08 | 2021-12-31 | 四川省骨科医院 | Novel handle for installing femoral intramedullary nail |
-
2018
- 2018-12-08 CN CN201822054521.1U patent/CN209253081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112641496A (en) * | 2020-12-24 | 2021-04-13 | 宿迁市浩欣机械有限公司 | PFNA femoral intramedullary nail short nail bracket |
| CN113855208A (en) * | 2021-10-08 | 2021-12-31 | 四川省骨科医院 | Novel handle for installing femoral intramedullary nail |
| CN113855208B (en) * | 2021-10-08 | 2024-04-16 | 四川省骨科医院 | Handle for installing femoral intramedullary nail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4697585A (en) | Appliance for fixing fractures of the femur | |
| CN209253081U (en) | PFNA proximal femoral nail instrument | |
| CN202146355U (en) | Femoral proximal triangular intramedullary nail | |
| CN110974383A (en) | Femoral intramedullary nail device | |
| CN209499881U (en) | A kind of orthopedic kirschner pin guiding device | |
| CN208481439U (en) | The external fluoremeter of intramedullary interlocking nail distal end pinning | |
| CN201701286U (en) | Proximal femoral nail system | |
| CN203749544U (en) | Minimally invasive thoracolumbar posterior percutaneous internal fixation system | |
| CN103637839B (en) | Rapid restorer for treating fracture of long tubular bones of limbs | |
| CN101352368A (en) | Medical self-drilling self-tapping fixed bone spicule | |
| CN203619661U (en) | Femoral neck fracture locking steel plate fixing plate | |
| CN103932778A (en) | Handle for kneecap upper admission passage tibia interlocking intramedullary nail system | |
| CN101011290A (en) | Femoral bone tuberosity locking hook plate internal fixation system | |
| CN113813037A (en) | Implanting device for femoral intertrochanteric fracture conformal nail | |
| CN201005773Y (en) | Femoral bone tuberosity locking hook board internal fixation system | |
| CN100544680C (en) | A kind of dilating expansion intramedullary nail | |
| CN113813036A (en) | Shape-fitting nail internal fixation system for intertrochanteric fracture | |
| CN210019613U (en) | Femoral lesser trochanter fracture reduction fixing guider | |
| CN208942345U (en) | A kind of full locking hip fixed Combination device of anti-cutting of anatomical form guiding | |
| CN111643173A (en) | Novel head medullary nail for preventing head and neck bone block from retroverted | |
| CN219184060U (en) | External positioner of intertrochanter fracture | |
| CN206852655U (en) | Fractured near end of thighbone improves locking steel plate inner fixing device | |
| CN209107542U (en) | A kind of rear ankle dissection locking steel plate suitable for Minimally Invasive Surgery | |
| CN206924108U (en) | Torsion angle reference system fixed point is wrong before neck of femur aims at hollow nail fixed system away from guide pin | |
| CN208610972U (en) | A kind of femur marrow inner fixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |