CN208864465U - A kind of hip screw locking bone fracture plate - Google Patents
A kind of hip screw locking bone fracture plate Download PDFInfo
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- CN208864465U CN208864465U CN201820779765.3U CN201820779765U CN208864465U CN 208864465 U CN208864465 U CN 208864465U CN 201820779765 U CN201820779765 U CN 201820779765U CN 208864465 U CN208864465 U CN 208864465U
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- screw
- hip screw
- hip
- gooseneck boom
- nail
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Abstract
The utility model relates to the technical fields of fracture fixation, a kind of particularly hip screw locking bone fracture plate, it include: that the both ends of hip screw are respectively equipped with bone screws and the first counterbore, the inner wall of first counterbore is equipped with the first internal screw thread, guide pinhole is offered on the central axis of hip screw, gooseneck boom casing, sliding pinning includes: the head of a nail being mutually permanently connected and nail rod, the outer wall of nail rod is equipped with can be with the first external screw thread of the first screw-internal thread fit, the head of a nail offers far from one end end face of nail rod and screws slot, hip screw steel plate with femoral shaft for being fixedly connected, gooseneck boom casing is set in outside hip screw and is slidably connected with it, hip screw Interal fixation is connected to the one end of gooseneck boom casing far from hip screw, gooseneck boom casing is equipped with the second counterbore far from one end of hip screw, the inner wall of second counterbore is equipped with the second internal screw thread, the outer wall of the head of a nail is equipped with can be with Second external screw thread of the second screw-internal thread fit, the second externally threaded screw pitch are greater than the first externally threaded screw pitch, solve the problems, such as to generate between hip screw and femoral head after intertrochanteric fracture operation is fixed and loosen and hip screw retracts.
Description
Technical field
The utility model relates to the technical field of fracture fixation, a kind of particularly hip screw locking bone fracture plate.
Background technique
Intertrochanter fracture of femur is very common, and 60% fracture is intertrochanteric fracture in femoral fracture.And intertrochanteric fracture is normal
It is often accompanied by subtrochanteric fracture, forms the unstable fracture of multiple fracture lines.According to statistics, 40% or more intertrochanteric fracture is not
Stable fracture.The main reason for leading to unstable fracture: (1) adult's tumble injury；(2) osteoporosis etc. of the elderly.
The interior fixation implant of bone-specific drug is compression goose head shaped nail system under the generally acknowledged femoral intertrochanteric of existing market, tuberosity
DynamicHipScrew (DHS), Gamma intramedullary nail.Compression goose head shaped nail system is consolidated by femur of the hip screw to fracture
It is fixed, while pressurizeing hip screw Interal fixation in backbone, but such mode can generate loosening after patient's long-time use
And positioning is failed, gooseneck boom casing is separated with hip screw, and free gooseneck boom casing is easy to cause two to patient in patient's body
Secondary damage.
Utility model content
Technical problem to be solved by the utility model is: in order to solve hip screw and femur after intertrochanteric fracture operation is fixed
Loosening is led to the problem of between head and is retracted, and the utility model provides a kind of hip screw locking bone fracture plate, below greater trochanter
Insertion guide pin makees temporary replacement and fixation, and is directed toward late-segmental collapse；By instrument, along guide pin direction, sky is screwed by guide pinhole
Heart hip screw；The gooseneck boom casing of hip screw steel plate is inserted in the rear end of hip screw；Extract guide pin out, according to patient femur's neck length degree,
Sliding pinning is locked to the corresponding position of the tail portion of hip screw, the unstable fracture tuberosity, under tuberosity stablize solid
It is fixed, hip screw rotation displacement, axial float are prevented, prevents unstable fracture end bone block from collapsing, the dislocation of malunion, femoral head,
The first external screw thread is engaged with the first internal screw thread when screwing sliding pinning, and sliding pinning is mobile towards the direction of hip screw, when
Second internal screw thread continues to screw sliding pinning, the screw pitch between the first external screw thread and the first internal screw thread after engaging with the second external screw thread
Less than screw pitch between the second external screw thread and the second internal screw thread so that hip screw to the direction of femoral bone tuberosity mobile pitch difference away from
From hip screw continues deeper into femoral bone tuberosity, and sliding pinning can carry out secondary locking to hip screw, enables hip screw right
Unstable fracture between tuberosity, under tuberosity carries out secondary pressurized positioning, improve hip screw between tuberosity, subtrochanteric fracture determines
Position effect avoids patient from sliding pinning after prolonged use and generate and loosens the case where retracting.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of hip screw locking bone fracture plate, comprising:
Hip screw, the both ends of the hip screw are respectively equipped with bone screws and the first counterbore, and the inner wall of first counterbore is set
There is the first internal screw thread, offer guide pinhole on the central axis of the hip screw,
Gooseneck boom casing,
Pinning is slided, the sliding pinning includes: the head of a nail being mutually permanently connected and nail rod, and the outer wall of the nail rod is equipped with
It can be offered far from one end end face of nail rod with the first external screw thread of the first screw-internal thread fit, the head of a nail and screw slot,
Hip screw steel plate, the hip screw steel plate are used to be fixedly connected with femoral shaft,
The gooseneck boom casing is set in outside hip screw and is slidably connected with it, and the hip screw Interal fixation is connected to goose
The one end of head casing tube far from hip screw,
The gooseneck boom casing is equipped with the second counterbore far from one end of hip screw, and the inner wall of second counterbore is equipped in second
Screw thread, the outer wall of the head of a nail is equipped with can be with the second external screw thread of the second screw-internal thread fit, the second externally threaded screw pitch
Greater than the first externally threaded screw pitch.
Specifically, the anti-rotational bar is outer-hexagonal bar or four angular poles or double flat formula bars.
Specifically, the anti-rotational hole is hexagon ring or four corner apertures or flat hole.
Specifically, the hip screw steel plate is staggeredly distributed with several forcing screw holes along its length.
Preferably, the hip screw steel plate offers several holding slots.
Specifically, the angle between the gooseneck boom casing and hip screw steel plate is 100-150 °.
Specifically, the slot that screws is hexagon or cross or linear type.
The beneficial effects of the utility model are:
The utility model provides a kind of hip screw locking bone fracture plate, and guide pin is inserted into below greater trochanter and makees temporarily to reset admittedly
It is fixed, and it is directed toward late-segmental collapse；By instrument, along guide pin direction, hollow hip screw is screwed by guide pinhole；By hip screw steel plate
Gooseneck boom casing be inserted in the rear end of hip screw；It extracts guide pin out, according to patient femur's neck length degree, sliding pinning is locked at hip screw
Tail portion corresponding position, the unstable fracture tuberosity, under tuberosity is carried out to stablize fixation, prevent hip screw rotation displacement,
Axial float prevents unstable fracture end bone block from collapsing, the dislocation of malunion, femoral head, first when screwing sliding pinning
External screw thread is engaged with the first internal screw thread, and sliding pinning is mobile towards the direction of hip screw, when the second internal screw thread and the second external screw thread
Continue to screw sliding pinning after engagement, the screw pitch between the first external screw thread and the first internal screw thread is less than in the second external screw thread and second
Screw pitch between screw thread, so that distance of the hip screw to the mobile pitch difference in the direction of femoral bone tuberosity, it is thick that hip screw continues deeper into femur
In grand, sliding pinning can carry out secondary locking to hip screw, enable hip screw between the unstable bone tuberosity, under tuberosity
Fold into row secondary pressurized positioning, improve hip screw between tuberosity, the locating effect of subtrochanteric fracture, avoid patient for a long time
Pinning is slided after use and is generated loosens the case where retracting.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of mounting structure schematic diagram of hip screw locking bone fracture plate of the utility model；
Fig. 2 is the structural schematic diagram of hip screw；
Fig. 3 is the structural schematic diagram of gooseneck boom casing；
Fig. 4 is the structural schematic diagram for sliding pinning；
In figure: 1. hip screws, 11. first internal screw threads, 12. bone screws, 13. anti-rotational bars, 14. first counterbores, 15. guide pins
Hole, 2. gooseneck boom casings, 21. second internal screw threads, 22. anti-rotational holes, 23. second counterbores, 3. sliding pinnings, 31. first external screw threads,
32. the second external screw thread, 33. nail rods, 34. heads of a nail, 35. screw slot, and 4. hip screw steel plates, 41. forcing screw holes, 42. hold slot.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown, the utility model provides a kind of hip screw locking bone fracture plate, comprising:
Hip screw 1, the both ends of hip screw 1 are respectively equipped with bone screws 12 and the first counterbore 14, and the inner wall of the first counterbore 14 is set
There is the first internal screw thread 11, offer guide pinhole 15 on the central axis of hip screw 1,
Gooseneck boom casing 2,
Pinning 3 is slided, sliding pinning 3 includes: the head of a nail 34 being mutually permanently connected and nail rod 33, and the outer wall of nail rod 33 is equipped with
The first external screw thread 31 that can cooperate with the first internal screw thread 11, the head of a nail 34 offer far from one end end face of nail rod 33 and screw slot
35,
Hip screw steel plate 4, hip screw steel plate 4 are used to be fixedly connected with femoral shaft,
Gooseneck boom casing 2 is set in outside hip screw 1 and is slidably connected with it, and hip screw steel plate 4 is fixedly connected on gooseneck boom set
The one end of pipe 2 far from hip screw 1,
Gooseneck boom casing 2 is equipped with the second counterbore 23 far from one end of hip screw 1, and the inner wall of the second counterbore 23 is equipped with spiral shell in second
Line 21, the outer wall of the head of a nail 34 are equipped with the second external screw thread 32 that can cooperate with the second internal screw thread 21, the screw pitch of the second external screw thread 32
Greater than the screw pitch of the first external screw thread 31.
In use, being inserted into guide pin below greater trochanter makees temporary replacement and fixation, and it is directed toward late-segmental collapse；By instrument,
Along guide pin direction, hollow hip screw 1 is screwed by guide pinhole 15；The gooseneck boom casing 2 of hip screw steel plate 4 is inserted in hip screw 1
Rear end；It extracts guide pin out, according to patient femur's neck length degree, sliding pinning 3 is locked to the corresponding position of the tail portion of hip screw 1, it is right
Unstable fracture between tuberosity, under tuberosity carries out stablizing fixation, prevents hip screw rotation displacement, axial float, prevents unstable
Fracture end bone block collapses, malunion, femoral head misplace, spiral shell in the first external screw thread 31 and first when screwing sliding pinning 3
Line 11 engages, and the direction of sliding pinning 3 towards hip screw 1 is mobile, when the second internal screw thread 21 engage with the second external screw thread 32 it is subsequent
Continuous to screw sliding pinning 3, the screw pitch between the first external screw thread 31 and the first internal screw thread 11 is less than in the second external screw thread 32 and second
Screw pitch between screw thread 21, so that distance of the hip screw 1 to the mobile pitch difference in the direction of femoral bone tuberosity, hip screw 1 continue deeper into stock
In bone tuberosity, sliding pinning 3 can carry out secondary locking to hip screw 1, enable hip screw 1 between tuberosity, under tuberosity
Unstable fracture carry out secondary pressurized positioning, improve hip screw 1 between tuberosity, the locating effect of subtrochanteric fracture, avoid suffering from
Person, which slides pinning 3 after prolonged use and generates, loosens the case where retracting.
Specifically, one end that the outer wall of hip screw 1 is connect with gooseneck boom casing 2 be equipped with anti-rotational bar 13, gooseneck boom casing 2 it is interior
One end that wall is connect with hip screw 1 offers anti-rotational hole 22, prevents rotating bar moving in rotation, when the second internal screw thread 21 and second
External screw thread 32 engage after continue to rotate sliding pinning 3, can only be produced relative sliding between hip screw 1 and gooseneck boom casing 2 and cannot
It produces relative rotation, so that hip screw 1 is able to continue to squeeze into femoral head to enhance fixed effect.
Specifically, anti-rotational bar 13 and anti-rotational hole 22 are regular hexagon, anti-rotational bar 13 can be four angular poles or
It is double flat formula bars, anti-rotational hole 22 can be quadrangle or double flat formulas, and the utility model is without limitation, as long as preventing goose
It is mobile just that rotation is generated between head casing tube 2 and hip screw 1, the utility model is without limitation.
Specifically, hip screw steel plate 4 is staggeredly distributed with several forcing screw holes 41 along its length, when screwing locking and pressurizing
Afterwards, the drivescrew into forcing screw hole 41 determines entire hip screw steel plate 4 from the not sealing of shaft of femur, improve hip screw 1 with
Intertrochanteric connective stability is prevented from being loosened and solid failure using generation between rear hip screw 1 and tuberosity for a long time, be ensure that whole
Fixed stability between a bone plate and femur.
In a specific embodiment, for the ease of gooseneck boom casing 2 to be inserted in hip screw 1, hip screw steel plate 4 is opened up
There are several holding slots 42, the distance between the distance between two neighboring holding slot 42 two neighboring finger of human body is equal, when
When gooseneck boom casing 2 is inserted in hip screw 1, is fitted closely by finger with slot 42 is held, increase finger manipulation hip screw
The operability of steel plate 4 reduces the time that logical gooseneck boom casing 2 is inserted in hip screw 1, improves the installation effectiveness of gooseneck boom casing 2.
Specifically, the angle between gooseneck boom casing 2 and hip screw steel plate 4 is 120 °.
Specifically, screwing slot 35 is hexagon or cross or linear type.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (8)
1. a kind of hip screw locking bone fracture plate, comprising:
Hip screw (1), the both ends of the hip screw (1) are respectively equipped with bone screws (12) and the first counterbore (14), and described first is heavy
The inner wall in hole (14) is equipped with the first internal screw thread (11), offers guide pinhole (15) on the central axis of the hip screw (1),
Gooseneck boom casing (2),
It slides pinning (3), sliding pinning (3) includes: the head of a nail (34) being mutually permanently connected and nail rod (33), the nail rod
(33) outer wall is equipped with the first external screw thread (31) that can cooperate with the first internal screw thread (11), and the head of a nail (34) is far from nail rod
(33) one end end face, which offers, screws slot (35),
Hip screw steel plate (4), the hip screw steel plate (4) are used to be fixedly connected with femoral shaft,
The gooseneck boom casing (2) is set in hip screw (1) and is slidably connected outside and with it, and the hip screw steel plate (4) is fixed to be connected
It is connected to the one end of gooseneck boom casing (2) far from hip screw (1),
It is characterized by: the gooseneck boom casing (2) is equipped with the second counterbore (23) far from the one end of hip screw (1), described second is heavy
The inner wall in hole (23) is equipped with the second internal screw thread (21), and the outer wall of the head of a nail (34) is equipped with and can cooperate with the second internal screw thread (21)
The second external screw thread (32), the screw pitch of second external screw thread (32) is greater than the screw pitch of the first external screw thread (31).
2. a kind of hip screw locking bone fracture plate as described in claim 1, it is characterised in that: the hip screw (1) and gooseneck boom set
The outer wall for managing one end of (2) connection is equipped with anti-rotational bar (13), what the inner wall of the gooseneck boom casing (2) was connect with hip screw (1)
One end offers anti-rotational hole (22).
3. a kind of hip screw locking bone fracture plate as claimed in claim 2, it is characterised in that: the anti-rotational bar (13) is outer six
Angular pole or four angular poles or double flat formula bars.
4. a kind of hip screw locking bone fracture plate as claimed in claim 2, it is characterised in that: the anti-rotational hole (22) is hexagonal
Hole or four corner apertures or flat hole.
5. a kind of hip screw locking bone fracture plate as described in claim 1, it is characterised in that: the hip screw steel plate (4) is along length
Degree direction is staggeredly distributed with several forcing screw holes (41).
6. a kind of hip screw locking bone fracture plate as described in claim 1, it is characterised in that: the hip screw steel plate (4) opens up
There are several holding slots (42).
7. a kind of hip screw locking bone fracture plate as described in claim 1, it is characterised in that: the gooseneck boom casing (2) and gooseneck boom
The angle followed closely between steel plate (4) is 100-150 °.
8. a kind of hip screw locking bone fracture plate as described in claim 1, it is characterised in that: described screw slot (35) are hexagon
Or cross or linear type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779765.3U CN208864465U (en) | 2018-05-23 | 2018-05-23 | A kind of hip screw locking bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779765.3U CN208864465U (en) | 2018-05-23 | 2018-05-23 | A kind of hip screw locking bone fracture plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208864465U true CN208864465U (en) | 2019-05-17 |
Family
ID=66461777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820779765.3U Active CN208864465U (en) | 2018-05-23 | 2018-05-23 | A kind of hip screw locking bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208864465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478023A (en) * | 2019-09-10 | 2019-11-22 | 苏州爱得科技发展股份有限公司 | A kind of dynamic coxa locking bone fracture plate of adjustable-angle |
| CN112370141A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Femoral neck bone fracture plate with double sleeves |
-
2018
- 2018-05-23 CN CN201820779765.3U patent/CN208864465U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478023A (en) * | 2019-09-10 | 2019-11-22 | 苏州爱得科技发展股份有限公司 | A kind of dynamic coxa locking bone fracture plate of adjustable-angle |
| CN112370141A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Femoral neck bone fracture plate with double sleeves |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213164 Changzhou Huasen Medical Instrument Co., Ltd., No.9 Xihu Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee after: Changzhou Huasen Medical Instrument Co.,Ltd. Address before: 213164 Changzhou Huasen Medical Instrument Co., Ltd., No.9 Xihu Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU WASTON MEDICAL APPLIANCE Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213000 No.5 Longxiang Road, Nanxiashu street, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Changzhou Huasen Medical Instrument Co.,Ltd. Address before: 213164 Changzhou Huasen Medical Instrument Co., Ltd., No.9 Xihu Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: Changzhou Huasen Medical Instrument Co.,Ltd. |