CN201642287U - Improved internal fixation bone fracture plate - Google Patents
Improved internal fixation bone fracture plate Download PDFInfo
- Publication number
- CN201642287U CN201642287U CN2010201452751U CN201020145275U CN201642287U CN 201642287 U CN201642287 U CN 201642287U CN 2010201452751 U CN2010201452751 U CN 2010201452751U CN 201020145275 U CN201020145275 U CN 201020145275U CN 201642287 U CN201642287 U CN 201642287U
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- screw
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- hole
- bone
- internal fixation
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Abstract
The utility model relates to an improved internal fixation bone fracture plate for reinforcing the hurt bone, belonging to the medical device technical field. The improved internal fixation bone fracture plate comprises a tack hole, wherein the tack hole is a double-level ladder taper hole and the hole diameter of one end of the ladder taper hole contacting with the hurt bone is relative small and a taper thread matched with the tail cap thread of an internal fixation screw is arranged in the end of the ladder taper hole and the hole diameter of another end is relative large and another taper thread matched with an end thread of a screw guide sleeve is arranged in another end of the ladder taper hole. The taper screw is reliably connected with the screw guide sleeve to prevent the screw guide sleeve from shifting and deviating when a drill bit guide sleeve is taken out after drilling the hole, therefore the thread is 'coaxial' with the bone drill hole and the thread of the bone fracture plate when the screw is arranged in the bone and accurate 'involution' of the screw thread and thread of bone fracture plate is ensured and 'fake locking' is prevented. The improved internal fixation bone fracture plate has features of simple technology, almost no increased production cost, no effect on the fixation intensity of the bone fracture plate, greatly reduced operation difficulty and increased reliability of the bone fracture plate.
Description
Technical field
This utility model relates to a kind of operating internal fixation blade plate that is used for, can with the internal fixation screw positive lock, belong to the medical devices technical field.
Background technology
In " Wicresoft " therapeutic process of osteoporotic fracture patient, usually need reinforce the injury of the bone by the internal fixation blade plate, blade plate is provided with the nail hole, and internal fixation screw passes the nail hole and screws in the injury of the bone, the blade plate and the injury of the bone are fixed together, prevent injury of the bone stress deformation.Simultaneously, internal fixation screw tail cap thread and blade plate nail hole taper thread screw, screw and blade plate " are combined " be one (as shown in Figure 1), reach " locking " purpose, to keep screw, blade plate " angle is stable ", improve internal fixation screw to the hold of sclerotin and the stability of internal fixation.
The connection procedure of the interior locking bone fracture plate and the injury of the bone is: blade plate is placed in injury of the bone surface, screw pilot sleeve and intussusception drill bit pilot sleeve wherein passes skin, fascia, muscle reaches blade plate, the drill bit pilot sleeve is connected with taper thread in blade plate is followed closely the hole by its end and the corresponding to screw thread of internal fixation screw tail medicated cap, the screw pilot sleeve is fixed by external support, drill bit insertion drill bit pilot sleeve is holed on the injury of the bone then, after finishing, boring takes out drill bit and drill bit pilot sleeve, send into internal fixation screw in the screw pilot sleeve and screw in the injury of the bone with screwdriver, take out the screw pilot sleeve at last.
The shortcoming that existing internal fixation blade plate exists is simple in structure, can not reliably be connected with the screw pilot sleeve in the installation process, after boring finishes to screw out the drill bit pilot sleeve, because the tractive of soft tissue, stop, and external support reasons such as deformation in use itself can cause that screw pilot sleeve position and angle change, the boring of sufferers of osteoporosis face sclerotin is imprecise to the guide effect of screw in addition, when making along screw pilot sleeve screw-in screw, be difficult to guarantee accurate " involutory " of screw tail medicated cap and blade plate screw thread, " false locking " phenomenon easily takes place, cause the fixedly usefulness of locking bone fracture plate to descend even inefficacy the fractures failure.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of can with the internal fixation blade plate of internal fixation screw positive lock.
The alleged problem of this utility model realizes with following technical proposals:
A kind of improved internal fixation blade plate, it is to have the blade plate of following closely the hole, described nail hole is a two-stage ladder taper hole, the stomidium footpath that described ladder taper hole contacts with the injury of the bone is the little and inner taper thread that is complementary with internal fixation screw tail cap thread that is provided with than the other end, and other end inside is provided with the taper thread that is complementary with screw pilot sleeve end thread.
The side that this utility model does not contact with the injury of the bone at traditional internal fixation blade plate has been set up the taper thread that is connected with screw pilot sleeve end, blade plate reliably is connected with the screw pilot sleeve by this screw thread during operation, displacement, the deviation of screw pilot sleeve when avoiding holing back taking-up drill bit pilot sleeve, thereby when screw is inserted with sclerotin boring, blade plate screw thread " coaxial ", guarantee screw thread and blade plate screw thread accurately " involutory ", prevent the generation of " false locking " phenomenon.
This utility model technology is easy, increase production cost hardly, do not influence the blade plate constant intensity, greatly reduces operating difficulty, improved the reliability of blade plate.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further specified.
Fig. 1 is the structure and the scheme of installation of traditional blade plate;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is this utility model and screw pilot sleeve connection diagram;
Fig. 4 is this utility model and screw pilot sleeve and drill bit pilot sleeve connection diagram;
Fig. 5 is the screw scheme of installation.
Each label is among the figure: 1, blade plate, 2, internal fixation screw, 3, the injury of the bone, 4, the drill bit pilot sleeve, 5, the screw pilot sleeve, 6, drill bit, 7, screwdriver, 8, the nail hole.
The specific embodiment
Referring to Fig. 2, this utility model is that two co-axial taper threads are set on blade plate 1, and the less taper thread of internal diameter is used for being connected with internal fixation screw 2, and the taper thread that internal diameter is bigger is used for being connected with screw pilot sleeve 5.
This blade plate with the connection procedure of the injury of the bone 3 is: blade plate 1 is placed in injury of the bone surface, screw pilot sleeve 5 and intussusception drill bit pilot sleeve 4 wherein passes skin, fascia, muscle reaches blade plate 1, the taper thread that screw pilot sleeve 5 (with drill bit pilot sleeve 4) is followed closely in the hole by its end taper thread and blade plate 1 is connected, drill bit 6 insertion drill bit pilot sleeves 4 are holed on the injury of the bone 3 then, after finishing, boring takes out drill bit 6 and drill bit pilot sleeve 4, send into internal fixation screw 2 in the screw pilot sleeve 5 and screw in the injury of the bone 3 with screwdriver 7, take off screw pilot sleeve 5 at last.
Claims (1)
1. improved internal fixation blade plate, it is to have the blade plate of following closely the hole, it is characterized in that, described nail hole (8) is a two-stage ladder taper hole, the stomidium footpath that described ladder taper hole contacts with the injury of the bone (3) is the little and inner taper thread that is complementary with internal fixation screw (2) tail cap thread that is provided with than the other end, and other end inside is provided with the taper thread that is complementary with screw pilot sleeve (5) end thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452751U CN201642287U (en) | 2010-03-31 | 2010-03-31 | Improved internal fixation bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201452751U CN201642287U (en) | 2010-03-31 | 2010-03-31 | Improved internal fixation bone fracture plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201642287U true CN201642287U (en) | 2010-11-24 |
Family
ID=43107472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201452751U Expired - Fee Related CN201642287U (en) | 2010-03-31 | 2010-03-31 | Improved internal fixation bone fracture plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201642287U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326560A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Drill bush |
| CN106618671A (en) * | 2016-10-18 | 2017-05-10 | 北京大学第三医院 | Positioning guider for articular cartilage repair and application thereof |
| CN108814699A (en) * | 2018-06-07 | 2018-11-16 | 河北医科大学第三医院 | A kind of locking bone fracture plate that can be accurately placed in lock screw |
| CN112353478A (en) * | 2020-11-06 | 2021-02-12 | 帕尔哈提·热西提 | Locking steel plate screw minimally invasive imbedding guide sleeve |
-
2010
- 2010-03-31 CN CN2010201452751U patent/CN201642287U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326560A (en) * | 2014-08-11 | 2016-02-17 | 天津康立尔生物科技有限公司 | Drill bush |
| CN106618671A (en) * | 2016-10-18 | 2017-05-10 | 北京大学第三医院 | Positioning guider for articular cartilage repair and application thereof |
| CN106618671B (en) * | 2016-10-18 | 2024-03-29 | 北京大学第三医院 | Positioning guide for articular cartilage repair and application thereof |
| CN108814699A (en) * | 2018-06-07 | 2018-11-16 | 河北医科大学第三医院 | A kind of locking bone fracture plate that can be accurately placed in lock screw |
| CN112353478A (en) * | 2020-11-06 | 2021-02-12 | 帕尔哈提·热西提 | Locking steel plate screw minimally invasive imbedding guide sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110331 |