CN204169912U - A kind of self-locking type Patella reset fixing arrangement that accurately can control to locate - Google Patents
A kind of self-locking type Patella reset fixing arrangement that accurately can control to locate Download PDFInfo
- Publication number
- CN204169912U CN204169912U CN201420618291.6U CN201420618291U CN204169912U CN 204169912 U CN204169912 U CN 204169912U CN 201420618291 U CN201420618291 U CN 201420618291U CN 204169912 U CN204169912 U CN 204169912U
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- CN
- China
- Prior art keywords
- retainer ring
- slide opening
- self
- locking type
- fixation hook
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of self-locking type Patella reset fixing arrangement that accurately can control to locate, comprise retainer ring and fixation hook, described retainer ring arranges slide opening, slide opening and fixation hook are slidably matched, retainer ring upper wall is thicker than lower wall, and be formed slopely radian to the inside, and upper end slopes inwardly, angle is greater than the intilted angle in lower end, described retainer ring outer shroud arranges circular arc and convexes to form quincunx ring body, described slide opening is radially arranged from the arc top of circular arc projection to retainer ring, and the fixation hook afterbody be slidably matched with slide opening is set to the elasticity dovetail with tension force.It is simple that this utility model has structure, easily processes, and gather stress strong, feature easy and simple to handle, is conducive to patella replacement and fixation, can effectively shorten the Rehabilitation time, improves postoperative rehabilitation effect.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to that a kind of structure is simple, easy to use, the self-locking type Patella reset fixing arrangement that accurately can control to locate of working stability.
Background technology
In reality production, life, the situation of Patella fracture often occurs because of accident, and medical worker, according to clinical practice, have developed multiple patella fixture, and wherein internal fixtion patella reduction fixture device effect is better, is widely used clinically.Patella fracture, caused by direct or indirect violence, mostly is horizontal type or comminuted fracture, due to the traction of quadriceps femoris, split displacement occurs during fracture, its fracture for intra-articular fracture, anatomical reduction and reliable internal fixtion particularly important to joint function rehabilitation.But through long-term practice inspection, the deficiency of Patella reset fixing arrangement various degrees, mainly orientation controls inaccurate inadequate with grasp.The replacement and fixation effect directly affecting replacement and fixation that these are not enough, so affect functional rehabilitation and the rehabilitation of patient.In order to overcome the deficiencies in the prior art, the design people, for existing technical deficiency, through long-term clinical practice, concentrates on studies, and developed a kind of self-locking type Patella reset fixing arrangement that accurately can control to locate, test proves, effect is good.
Utility model content
The purpose of this utility model is to provide that a kind of structure is simple, working stability can dissect fixing dissection self-locking type Patella reset fixing arrangement.
The purpose of this utility model realizes like this, comprise retainer ring and fixation hook, described retainer ring arranges slide opening, slide opening and fixation hook are slidably matched, retainer ring upper wall is thicker than lower wall, and be formed slopely radian to the inside, and upper end slopes inwardly, angle is greater than the intilted angle in lower end, described retainer ring outer shroud arranges circular arc and convexes to form quincunx ring body, described slide opening is radially arranged from the arc top of circular arc projection to retainer ring, and the fixation hook afterbody be slidably matched with slide opening is set to the elasticity dovetail with tension force.
Ring body is set to have the quincunx of circular arc projection by this utility model, makes it increase the effective length of slide opening, operates more smooth and easy, and has certain tension force to the circular arc projection of ring body lopsidedness, can better be fixed in use procedure; The afterbody of fixation hook adopts has elastic dovetail shaped, after can being adjusted to appropriate location, opening and carries out self-locking in work, safe and efficient; It is simple that this utility model has structure, easily processes, and gather stress strong, feature easy and simple to handle, is conducive to patella replacement and fixation, can effectively shorten the Rehabilitation time, improves postoperative rehabilitation effect.
Accompanying drawing explanation
Fig. 1 is structural representation schematic diagram of the present utility model;
Fig. 2 is the A-A direction view of Fig. 1;
In figure: 1-retainer ring, 11-circular arc is protruding, 2-slide opening, 3-fixation hook, 31-tapered end, 32-elasticity dovetail.
Detailed description of the invention
Be further described this utility model below in conjunction with accompanying drawing, but must not be limited this utility model by any way, any change done based on this utility model training centre or improvement, all belong to protection domain of the present utility model.
As shown in accompanying drawing 1 ~ 2, this utility model comprises retainer ring 1 and fixation hook 3, described retainer ring 1 arranges slide opening 2, slide opening 2 and fixation hook 3 are slidably matched, retainer ring 1 upper wall is thicker than lower wall, and be formed slopely radian to the inside, and upper end slopes inwardly, angle is greater than the intilted angle in lower end, described retainer ring 1 outer shroud arranges circular arc protruding 11 and forms quincunx ring body, described slide opening 2 is radially arranged from the arc top of circular arc projection 11 to retainer ring 1, and fixation hook 3 afterbody be slidably matched with slide opening 2 is set to the elasticity dovetail 32 with tension force.
The cross section of described slide opening 2 is semicircle, and the cross sectional shape of the fixation hook 3 be slidably matched with slide opening 2 is also for semicircle, and described fixation hook 3 arc surface is towards the outside of retainer ring 1.
Circular arc projection 11 on described retainer ring 1 arranges 8 ~ 12, and is evenly distributed on the outside of retainer ring 1.
Circular arc projection 11 on described retainer ring 1 is to the lopsidedness of retainer ring 1, and angle of inclination is 7 ~ 10 degree.
The top of described fixation hook 3 is set to smooth tapered end 31.
The straight line portion that described fixation hook 3 is divided into hook portion and coordinates with slide opening 2, described straight line portion is set to the swallow-tail form of separating from centre, has outside elasticity tension.
Groove between described circular arc projection 11 smoothly transits, and the degree of depth of groove is not less than the maximum radial thickness 1/2 of retainer ring 1.
operation principle of the present utility model and work process as follows:
Ring body is set to have the quincunx of circular arc projection by this utility model, is hooked in slide opening and has longer active length, makes it operate more convenient stable.And to convex 11 of the circular arc of ring body lopsidedness, there is certain tension force, can better be fixed in use procedure; The afterbody of fixation hook 3 adopts has elastic dovetail shaped, after can being adjusted to appropriate location, opening and carries out self-locking in work, safe and efficient; It is simple that this utility model has structure, easily processes, and gather stress strong, feature easy and simple to handle, is conducive to patella replacement and fixation, can effectively shorten the Rehabilitation time, improves postoperative rehabilitation effect.Working method of the present utility model: cut skin, patella resets under direct-view, quincunx retainer ring 1 is placed in patella surface, its medial patellar surface is mutually docile, wall thickness is upper end, and on ring, 2 ~ 4 Flos Mume lobe slide openings 2 can first insert fixation hook 3, and hook end catches lower edge on patella, and clamp the fixation hook centripetal pressurization of hook end corresponding up and down with pressurized clamp, bone block is pressurizeed and draws close; The alignment situation of patella posterior articular facet is noted during loaded reset; After reset, elasticity dovetail 32 is unclamped, tension force just can be utilized to carry out auto lock.Aforesaid way can complete replacement and fixation process by fixing for each fixation hook 3.
Claims (7)
1. one kind accurately can control the self-locking type Patella reset fixing arrangement of location, comprise retainer ring (1) and fixation hook (3), described retainer ring (1) is arranged slide opening (2), slide opening (2) and fixation hook (3) are slidably matched, it is characterized in that: retainer ring (1) upper wall is thicker than lower wall, and be formed slopely radian to the inside, and upper end slopes inwardly, angle is greater than the intilted angle in lower end, described retainer ring (1) outer shroud arranges circular arc projection (11) and forms quincunx ring body, described slide opening (2) is radially arranged from the arc top of circular arc projection (11) to retainer ring (1), fixation hook (3) afterbody be slidably matched with slide opening (2) is set to the elasticity dovetail (32) with tension force.
2. dissection self-locking type Patella reset fixing arrangement according to claim 1, it is characterized in that: the cross section of described slide opening (2) is for semicircle, the cross sectional shape of the fixation hook (3) be slidably matched with slide opening (2) is also for semicircle, and described fixation hook (3) arc surface is towards the outside of retainer ring (1).
3. dissection self-locking type Patella reset fixing arrangement according to claim 1 and 2, is characterized in that: the circular arc projection (11) on described retainer ring (1) arranges 8 ~ 12, and is evenly distributed on the outside of retainer ring (1).
4. dissection self-locking type Patella reset fixing arrangement according to claim 1 and 2, is characterized in that: the circular arc projection (11) on described retainer ring (1) is to the lopsidedness of retainer ring (1), and angle of inclination is 7 ~ 10 degree.
5. dissection self-locking type Patella reset fixing arrangement according to claim 1 and 2, is characterized in that: the top of described fixation hook (3) is set to smooth tapered end (31).
6. dissection self-locking type Patella reset fixing arrangement according to claim 1 and 2, it is characterized in that: the straight line portion that described fixation hook (3) is divided into hook portion and coordinates with slide opening (2), described straight line portion is set to the swallow-tail form of separating from centre, has outside elasticity tension.
7. dissection self-locking type Patella reset fixing arrangement according to claim 1 and 2, is characterized in that: the groove between described circular arc projection (11) smoothly transits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618291.6U CN204169912U (en) | 2014-10-24 | 2014-10-24 | A kind of self-locking type Patella reset fixing arrangement that accurately can control to locate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618291.6U CN204169912U (en) | 2014-10-24 | 2014-10-24 | A kind of self-locking type Patella reset fixing arrangement that accurately can control to locate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204169912U true CN204169912U (en) | 2015-02-25 |
Family
ID=52558760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420618291.6U Expired - Fee Related CN204169912U (en) | 2014-10-24 | 2014-10-24 | A kind of self-locking type Patella reset fixing arrangement that accurately can control to locate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204169912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030314A (en) * | 2015-06-03 | 2015-11-11 | 张英泽 | Low-profile peri-locking circular patellar setting fixator |
-
2014
- 2014-10-24 CN CN201420618291.6U patent/CN204169912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105030314A (en) * | 2015-06-03 | 2015-11-11 | 张英泽 | Low-profile peri-locking circular patellar setting fixator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20161024 |