CN207561975U - Intramedullary nail precise positioning mounting bracket - Google Patents
Intramedullary nail precise positioning mounting bracket Download PDFInfo
- Publication number
- CN207561975U CN207561975U CN201720597665.4U CN201720597665U CN207561975U CN 207561975 U CN207561975 U CN 207561975U CN 201720597665 U CN201720597665 U CN 201720597665U CN 207561975 U CN207561975 U CN 207561975U
- Authority
- CN
- China
- Prior art keywords
- nail
- intramedullary nail
- location hole
- locating rod
- taper location
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of intramedullary nail precise positioning mounting brackets, nail seat including being installed with intramedullary nail, nail seat, which upwardly extends, is provided with measurement strut, it measures and is movably provided with locating rod on strut, diopter corresponding with intramedullary nail pinning hole site is provided in the side of locating rod, the distal end of intramedullary nail offers up big and down small taper location hole close to its end；The lower end of locating rod is the circular conical surface to match with taper location hole, and locating rod with offering the connection screw thread being mutually adapted respectively on the faying face of taper location hole.For ease of being precisely placed in locking nail, taper location hole can be designed as through-hole, and the body of rod of locating rod is hollow structure, and the pilot pin inside worn extends taper location hole.The utility model has the advantage of simple in structure, top pressure is secured, easy to operation.It will be fixed between locating rod and the taper location hole for being opened in intra medullary nail far-end by connection screw thread, it is ensured that intramedullary nail is not in shifting phenomena, ensure that locking nail can be accurately fixed on intramedullary nail.
Description
Technical field
The utility model is related to orthopaedics instrument, more particularly, to one kind for long bone fractures such as shin bone, femur, humerus
The intramedullary nail precise positioning mounting bracket of use.
Background technology
Long diaphysis（Including shin bone, femur, humerus etc.）Fracture due to technology maturation, is created using the method for Intramedullary nailing
The advantages that mouth is small and does not have to outer fixation, and patient's out-of-bed activity is early has been popularized.Common bone marrow nail
Diameter generally has 9,10,11, tetra- kinds of 12mm, proximal end 7cm enlarged diameters to 13mm, the length of nail can be from
32cm to 42cm, the front and rear radian of nail adapt to the natural form of ossis, facilitate insertion into.The installation of intramedullary nail need by means of
Mounting bracket by the proximally and distally accurate positionin of diopter on mounting bracket, is fixed intramedullary nail using locking nail.It is clinical
During practical operation, when the length of intramedullary nail is thinner more than the diameter of 24cm or intramedullary nail, intramedullary nail can be because many reasons produce
Change shape, bending, causes far-end locking difficult, i.e., distal end positioning compression bar cannot firmly top pressure in the locating platform of intramedullary nail
On, occur intramedullary nail inwardly, outwardly or downwardly shift, prevent locking nail from accurately locking.For convenience of operation, current intramedullary nail
Distal locking nail bore dia is typically designed larger, although facilitating the merging of locking nail in this way, between locking nail and locking nail hole
Larger movable gap is unfavorable for the fixation of knochenbruch, and patients with fractures position is caused to be difficult to heal.
Invention content
The purpose of this utility model is to provide a kind of top pressure securely, can accurately lock the intramedullary nail precise positioning of locking nail
Mounting bracket.
To achieve the above object, the utility model can take following technical proposals：
Intramedullary nail precise positioning mounting bracket described in the utility model, the nail seat including being installed with intramedullary nail, the nail seat
It upwardly extends and is provided with measurement strut, be movably provided with locating rod on the measurement strut, set in the side of the locating rod
There is a diopter corresponding with the intramedullary nail pinning hole site, the distal end of the intramedullary nail offers up big and down small close to its end
Taper location hole；The lower end of the locating rod is the circular conical surface to match with the taper location hole, the locating rod with
The connection screw thread being mutually adapted is offered on the faying face of taper location hole respectively.
The taper location hole is through-hole, and the body of rod of the locating rod is hollow structure, the pilot pin extension inside worn
Go out the taper location hole.
The distal locking nail hole of the intramedullary nail is located at the inside of the taper location hole, direction and taper location hole direction
Unanimously.
The utility model has the advantage of simple in structure, top pressure is secured, easy to operation.By locating rod and it is opened in intramedullary nail
It is fixed between the taper location hole of distal end by connection screw thread, even if intramedullary nail is not in shifting phenomena, ensure that lock
Fixed nail can be accurately fixed on intramedullary nail.
Description of the drawings
Fig. 1 is the structure diagram of existing intramedullary nail mounting bracket.
Fig. 2 is the structure diagram of the utility model（Diopter is not drawn into）.
Fig. 3 is the structure chart of intramedullary nail in Fig. 2.
Specific embodiment
As shown in Figure 2,3, intramedullary nail precise positioning mounting bracket described in the utility model, including being installed with intramedullary nail 1
Nail seat 2, nail seat 2, which upwardly extends to be provided with, measures strut 3, measures and is movably provided with locating rod 4 on strut 3, the one of locating rod 4
Side is provided with diopter corresponding with intramedullary nail pinning hole site（It is not drawn into figure）, will not to ensure 1 fixation of intramedullary nail
It shifts, convenient for the accurate merging of locking nail, offers up big and down small taper close to its end in the distal end of intramedullary nail 1 and determine
Position hole 5；The circular conical surface that the lower end of locating rod 4 is designed as matching with taper location hole 5, locating rod 4 and taper location hole 5
Faying face on offer the connection screw thread being mutually adapted respectively.
Taper location hole 5, can also be designed as by locating rod 4 and the accurate connection of taper location hole 5 during to ensure to operate
The body of rod of locating rod 4 is designed to hollow structure by through-hole, and the pilot pin 6 inside worn extends taper location hole 6.It is fixed to encounter
When position bar 4 is not easy situation about connecting with taper location hole 5, first pilot pin 6 can be penetrated in taper location hole 5 and is positioned,
Then it is locating rod 4 is downward along pilot pin 6, you can accurately to be connect with taper location hole 5.
During actual fabrication, since taper location hole 5 is opened in the distal end of intramedullary nail 1 close to its end point, therefore by intramedullary nail 1
Distal locking nail hole 7 be opened in the inside of taper location hole 5, direction is consistent with 5 direction of taper location hole, as shown in figure 3, one
As be all in human body side surface direction, be more in line with biomethanics in this way, while be easier the high rigidity by locating rod 4, ensure
1 fixation of intramedullary nail reduces the error for beating locking nail.
During operation, nail seat 2 is mounted on by fracture site designated length and the suitable intramedullary nail 1 of diameter, then along marrow
Chamber penetrates intramedullary nail 1 in the femur 8 of fracture, under the booster action of pilot pin 6, locating rod 4 is screwed on intramedullary nail 1 and is opened
If taper location hole 5 in, both make firmly to be connected as one, also need to be consolidated using locating fastener 9 when necessary
It is fixed.Then using distal end diopter, alignment distal locking nail hole 7 drills, merging far-end locking nail, then is placed in using same method
Proximal end locking nail completes the installation of intramedullary nail.Since intramedullary nail accurately can be firmly fixed in the utility model, merging
Intramedullary nail is not in shifting phenomena during locking nail, therefore can reduce the diameter of distal locking nail hole 7, makes it between locking nail
Gap minimizes, in favor of the healing at patients with fractures position.
Claims (3)
1. a kind of intramedullary nail precise positioning mounting bracket, including being installed with intramedullary nail（1）Nail seat（2）, the nail seat（2）Prolong upwards
It stretches and is provided with measurement strut（3）, the measurement strut（3）On be movably provided with locating rod（4）, in the locating rod（4）One
Side is provided with diopter corresponding with the intramedullary nail pinning hole site, it is characterised in that：The intramedullary nail（1）Distal end it is close
Its end offers up big and down small taper location hole（5）；The locating rod（4）Lower end be and the taper location hole
（5）The circular conical surface to match, the locating rod（4）With taper location hole（5）Faying face on offer what is be mutually adapted respectively
Connection screw thread.
2. intramedullary nail precise positioning mounting bracket according to claim 1, it is characterised in that：The taper location hole（5）For
Through-hole, the locating rod（4）The body of rod for hollow structure, the pilot pin inside worn（6）Extend the taper location hole
（5）.
3. intramedullary nail precise positioning mounting bracket according to claim 1 or 2, it is characterised in that：The intramedullary nail（1）It is remote
Hold locking nail hole（7）Positioned at the taper location hole（5）Inside, direction and taper location hole（5）Direction is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720597665.4U CN207561975U (en) | 2017-05-26 | 2017-05-26 | Intramedullary nail precise positioning mounting bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720597665.4U CN207561975U (en) | 2017-05-26 | 2017-05-26 | Intramedullary nail precise positioning mounting bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207561975U true CN207561975U (en) | 2018-07-03 |
Family
ID=62697637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720597665.4U Expired - Fee Related CN207561975U (en) | 2017-05-26 | 2017-05-26 | Intramedullary nail precise positioning mounting bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207561975U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN109106436A (en) * | 2018-09-28 | 2019-01-01 | 危杰 | A kind of intramedullary needle device for eliminating lock up gap |
| CN109480985A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of cross locking marrow nail of distally taper location hole |
| CN110236660A (en) * | 2019-07-08 | 2019-09-17 | 天津正天医疗器械有限公司 | A kind of guide pin aiming adjuster for femoral surgery |
-
2017
- 2017-05-26 CN CN201720597665.4U patent/CN207561975U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN109106436A (en) * | 2018-09-28 | 2019-01-01 | 危杰 | A kind of intramedullary needle device for eliminating lock up gap |
| CN109480985A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of cross locking marrow nail of distally taper location hole |
| CN110236660A (en) * | 2019-07-08 | 2019-09-17 | 天津正天医疗器械有限公司 | A kind of guide pin aiming adjuster for femoral surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180703 |