CN203234817U - Matched screw plug for minimally invasive locking plate - Google Patents
Matched screw plug for minimally invasive locking plate Download PDFInfo
- Publication number
- CN203234817U CN203234817U CN2013201588098U CN201320158809U CN203234817U CN 203234817 U CN203234817 U CN 203234817U CN 2013201588098 U CN2013201588098 U CN 2013201588098U CN 201320158809 U CN201320158809 U CN 201320158809U CN 203234817 U CN203234817 U CN 203234817U
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- China
- Prior art keywords
- screw hole
- plug
- screw
- nut
- hole
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- Expired - Lifetime
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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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a matched screw plug for a minimally invasive locking plate. The matched screw plug is characterized in that the matched screw plug is matched with a hole site in the minimally invasive locking plate and comprises a nut plug and a blocky plug, wherein the nut plug corresponds to a locking screw hole; the blocky plug corresponds to a common screw hole in the side part of the locking screw hole; the nut plug is arranged in the locking screw hole and is a nut without a screw; threads are arranged on the cylindrical surface of the nut; the bottom surface and the top surface of the nut are curved surfaces or planes; the blocky plug is embedded into the common screw hole; the shape of the common screw hole is approximate or completely matched with the shape of the common screw hole; according to the common screw hole shape, if the common screw hole is communicated with the locking screw hole, one side of the common screw hole is concave arc-shaped and corresponds to the circumference of the screw plug; threads are arranged on the side face or are not arranged on the side face; and the threads are corresponding to and complementary with the threads of the locking screw hole. The matched screw plug for the minimally invasive locking plate has the advantages of being simple in structure, convenient to mount and use, and strong in practicability and the like.
Description
Technical field
This utility model relates to bone surgery equipment technical field, especially relates to the supporting nut insert of Wicresoft's lockplates such as LCP, LISS.
Background technology
At present, LCP(locking compress steel plate) with the Wicresoft such as LISS (less invasive stabilization systems) locking titanium plate or steel plate, broad sense comprises all titanium plates that are designed for the MIPO technology by this theory, comprise pilon, PHILOS etc. titanium plate, apparatus commonly used for Orthopedic Clinical less invasive techniques treatment fracture because the mode of operation changes, is different from the titanium plates such as LC-DCP, LCP and LISS titanium plate only need to cut titanium plate two ends subcutaneous insertion titanium plate when being used for fixedly, the centre does not often need to cut.Yet, because the titanium plate has more screw hole not insert screw, soft tissue or the osseous tissue screw hole of often growing into, when taking out the titanium plate, owing to only cutting two ends, soft tissue in the vacant screw hole or osseous tissue can hinder the titanium plate and take out, often cause than the interior more macrolesion of fixedly inserting when taking out the titanium plate, although (Wicresoft's titanium plate can take out after inserting, but still there is the patient to seek out, or because some reason needs to take out, use to dissect such as proximal humeral fracture and must take out titanium plate etc. situation after lockplate causes subacromial impingement); Secondly, the both sides of the vacant screw hole of titanium plate are because stress concentration relatively easily ruptures, and the fracture of titanium plate often easily betides vacant screw place; Again, vacant locking titanium plate screw easily causes the change of screw hole shape or screw thread because of bump, clamp in transportation or storage, causes screw to lose efficacy; So be necessary to design the stopper of lockplate screw, the screw of will not selecting before inserting human body clogs, and prevents growing into of osseous tissue or soft tissue, and protection titanium plate reduces possibility of fracture, and avoids the titanium plate the time spent is out of shape because of the screw that a variety of causes causes.
Summary of the invention
The purpose of this utility model is exactly in order to solve the deficiency of prior art, and provide a kind of simple in structure, the supporting nut insert of Wicresoft's lockplate easy to use.
This utility model is to adopt following technical solution to realize above-mentioned purpose:
The supporting nut insert of a kind of Wicresoft lockplate is characterized in that, the position, hole on it and the Wicresoft's lockplate is complementary, and comprises respectively the nut plug corresponding with screw hole, the bulk plug corresponding with the plain screw hole of screw hole sidepiece.
Described nut plug can be screwed in the screw hole, is a nut without screw rod, on its cylinder screw thread is arranged, and end face or bottom surface can be curved surface or plane; There are depression or shrinkage pool or groove or caveli body in described nut plug end face or bottom surface wherein one side, or projection or boss or protrusion cushion block or outstanding tooth.
Described block stopper shape mates or approximate match fully with locking titanium plate plain screw hole, and can be embedded in the plain screw hole, according to common screw shape, if the plain screw hole communicates with screw hole (LCP hole), then the one side can be arcs of recesses, and corresponding with the circumference of lock screw nut plug, the side can have or without screw thread, and screw thread can corresponding and completion screw hole screw thread; Block plug end face, bottom surface also can be provided with projection, boss, protrusion cushion block.Described plain screw hole and screw hole can also independently arrange for separate type.
The beneficial effect that this utility model adopts above-mentioned technical solution to reach is:
1 screw of will not selecting before inserting human body clogs, and inserts the position, hole of leaving unused of growing into that can prevent osseous tissue or soft tissue behind the human body, is convenient to second operation and takes out the titanium plate.
2 titanium plates are inserted screw hole with stopper when not using, can protect shape and the screw thread of screw hole, prevent from causing the screw thread failure because the factors such as bump, clamp cause the distortion of screw screw thread.
3 titanium plates can be alleviated screw both sides stress concentration if any stopper in the vacant screw to a certain extent after inserting human body, thereby reach protection titanium plate, reduce the possibility of titanium plate fracture
4 in operation process, because it is vacant to select the screw of inserting screw, other screw hole has stopper, be convenient to identify under the x line in the art location, also can in wanting to insert the screw of screw, insert nut stopper or the block stopper that end face has projection, can be so that touch recognition in the art reduce x line perspective number of times, prevent that skin incision mistake and screw from inserting mistake.
5 nut stoppers are different from the employed screwdriver of lock screw, can avoid getting screw identification error when the titanium plate is taken out in operation for the second time.
Description of drawings
Fig. 1 is assembly structure schematic diagram of the present utility model;
Fig. 2 is this utility model structural representation;
Fig. 3-Fig. 6 is other embodiments figure of this utility model nut plug.
Description of reference numerals: 1, Wicresoft's lockplate 2, screw hole 3, nut plug
4, block plug.
The specific embodiment
As depicted in figs. 1 and 2, the supporting nut insert of this utility model Wicresoft lockplate, be complementary with the position, hole on the LISS Wicresoft lockplate 1, Wicresoft's lockplate 1 is provided with some screw hole 2, screw hole 2 sidepiece integral types have the plain screw hole, and this nut insert comprises respectively the nut plug 3 corresponding with screw hole, the bulk plug 4 corresponding with screw hole 2 sidepiece arcuate sockets.Described nut plug 3 is a nut without screw rod, on its cylinder screw thread is arranged, and end face or bottom surface can be curved surface or plane; There are depression or shrinkage pool or groove or caveli body in described nut plug 3 end faces or bottom surface wherein one side, or projection or boss or protrusion cushion block or outstanding tooth.Described block plug 4 can be embedded in the plain screw hole, and the one side is arc or crescent, can be provided with screw thread, and is corresponding with the circumference of nut plug 3; Described nut plug 3 and block plug 4 can easily be inserted in the position, hole.Described plain screw hole and screw hole 2 are that separate type independently arranges.
Shown in Fig. 3-5, different according to the design of projection, depression on its end face and the bottom surface, can be provided with the nut plug 3 of numerous embodiments:
1, end face or bottom surface wherein one side depression, shrinkage pool, groove, caveli body or projection, boss, protrusion cushion block, outstanding tooth are arranged, another side is smooth, can use supporting screw to split by depression, the protruding nut plug is screwed into back-outs, this kind of depression, shrinkage pool, groove, caveli body or projection, boss, protrusion cushion block, outstanding tooth can be more shallow, or be positioned at the edge of end face or bottom surface, to reduce adhesion, the embedding of soft tissue, be convenient to the taking-up of titanium plate;
2, nut plug end face has obvious projection, there are depression, shrinkage pool, groove, caveli body or projection, boss, protrusion cushion block, outstanding tooth in smooth or bottom surface, bottom surface, can use telescopic screw to split to be screwed into and back-out, the obvious projection of this kind of end face can be used as and touches location usefulness in the art;
3, all there are depression, shrinkage pool, groove, caveli body or projection, boss, protrusion cushion block, outstanding tooth in nut plug end face and bottom surface; this kind of is used mainly for the protection of titanium plate protection titanium plate screw when storing; when its one side projection, depression failure mode, can it be back-outed by raised or sunken the splitting by supporting screw of another side.
The titanium plate is inserted screw hole with stopper when not using, can protect shape and the screw thread of screw hole, prevents from causing the screw thread failure because the factors such as bump, clamp cause the distortion of screw screw thread.
In operation process, can be before the titanium plate be inserted human body, chosen in advance will be inserted the screw hole of screw, all the other screw holes use screw stopper plugs good, because the screw hole of wanting to insert screw is for empty, and other Kong Weishi, so be convenient to recognize in the art, avoided screw to insert wrong possibility, also can insert the stopper that end face has projection in the hole of wanting to insert screw, be convenient to finger touch and recognize.The titanium plate of stopper is inserted and can be brought into play the growth that stops osseous tissue in the idle position, hole or soft tissue behind the human body, alleviates screw both sides stress concentration, thereby reaches protection titanium plate, reduces the generation of titanium plate fracture, has improved the success rate of performing the operation.
Above-described only is preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from this utility model creation design; can also make some distortion and improvement; shown in Fig. 3-5; variation such as screw thread; the variation of nut plug and block plug size, profile; the variation on nut plug top bottom surface curved surface or plane; change of shape, number of variations and the permutation and combination of nut plug and the block projection of lower surface beyond the Great Wall, depression, these all belong to protection domain of the present utility model.
Claims (4)
1. the supporting nut insert of Wicresoft's lockplate is characterized in that, the position, hole on it and the Wicresoft's lockplate is complementary, and comprises respectively the nut plug corresponding with screw hole, the bulk plug corresponding with screw hole sidepiece plain screw hole.
2. the supporting nut insert of a kind of Wicresoft according to claim 1 lockplate is characterized in that, described nut plug is arranged in the screw hole, is a nut without screw rod, on its cylinder screw thread is arranged, and its end face and bottom surface are curved surface or plane.
3. the supporting nut insert of a kind of Wicresoft according to claim 1 and 2 lockplate is characterized in that, the wherein one or both sides of described nut plug end face or bottom surface have depression or shrinkage pool or groove or caveli body; Projection or boss are perhaps arranged or protrude cushion block or outstanding tooth.
4. the supporting nut insert of a kind of Wicresoft according to claim 1 lockplate is characterized in that, described block plug is embedded in the plain screw hole; Described plain screw hole and screw hole are that separate type independently arranges; Perhaps described plain screw hole is connected with screw hole, and then block plug one side is arcs of recesses, and corresponding with the circumference of screw hole nut plug, and the side has or without screw thread, the screw thread of the corresponding and completion screw hole of screw thread; Described block plug end face, bottom surface also arrange projection or boss or protrude cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201588098U CN203234817U (en) | 2013-04-02 | 2013-04-02 | Matched screw plug for minimally invasive locking plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201588098U CN203234817U (en) | 2013-04-02 | 2013-04-02 | Matched screw plug for minimally invasive locking plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203234817U true CN203234817U (en) | 2013-10-16 |
Family
ID=49312158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201588098U Expired - Lifetime CN203234817U (en) | 2013-04-02 | 2013-04-02 | Matched screw plug for minimally invasive locking plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203234817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024469A (en) * | 2018-06-09 | 2018-12-18 | 中交航局第工程有限公司 | A kind of concrete segment and its hanging the application in bottom technique |
-
2013
- 2013-04-02 CN CN2013201588098U patent/CN203234817U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024469A (en) * | 2018-06-09 | 2018-12-18 | 中交航局第工程有限公司 | A kind of concrete segment and its hanging the application in bottom technique |
| CN109024469B (en) * | 2018-06-09 | 2021-03-19 | 中交一航局第一工程有限公司 | Concrete component and application thereof in bottom hanging process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220425 Address after: No.16, Guanghai Avenue West, southwest Street, Sanshui District, Foshan City, Guangdong Province Patentee after: SANSHUI DISTRICT PEOPLE'S HOSPITAL FOSHAN CITY Address before: Sanshui District 528100 in Guangdong province Foshan City Ya ho East 5 402 Patentee before: Zhang Fan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |