CN203153924U - Posterior pelvic ring sacrum minimally invasive internal fixer - Google Patents
Posterior pelvic ring sacrum minimally invasive internal fixer Download PDFInfo
- Publication number
- CN203153924U CN203153924U CN 201320017102 CN201320017102U CN203153924U CN 203153924 U CN203153924 U CN 203153924U CN 201320017102 CN201320017102 CN 201320017102 CN 201320017102 U CN201320017102 U CN 201320017102U CN 203153924 U CN203153924 U CN 203153924U
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- steel plate
- connecting steel
- bolt
- sacrum
- right connecting
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Abstract
The utility model provides a posterior pelvic ring sacrum minimally invasive internal fixer and belongs to the technical field of medical instruments. The internal fixer structurally comprises hollow screws, bolts, a left connecting steel plate and a right connecting steel plate. The upper end of the left connecting steel plate and the upper end of the right connecting steel plate are respectively provided with an upper long circle hole. The lower end of the left connecting steel plate and the lower end of the right connecting steel plate are respectively provided with a lower long circular hole. The hollow screws respectively penetrate through the upper long circular hole of the left connecting steel plate and the upper long circular hole of the right connecting steel plate. The bolts simultaneously penetrate through the lower long circular hole of the left connecting steel plate and the lower long circular hole of the right connecting steel plate. The bolt at the left connecting steel plate is fixed on the left connecting steel plate through a fixing nut and a locking nut, and the bolt at the right connecting steel plate is fixed on the right connecting steel plate through a fixing nut and a locking nut. The posterior pelvic ring sacrum minimally invasive internal fixer is safe, accurate, and capable of effectively avoiding damage of placing of a guide needle or a bolt or a screw to sacroiliac stems or sacral nerves or dura mater or blood vessels in front of the sacrum when used to be matched with a guided system.
Description
Technical field
This utility model relates to technical field of medical instruments, and specifically a kind of posterior ring pelvic is through rumpbone Wicresoft inner fixer.
Background technology
General, sacroiliac joint is relative and constitute by the auricular surface of rumpbone and ilium.Structurally belong to synovial joints, from motion mode, can regard hinge joint or trochoid as.In the clinical operation, posterior ring pelvic is big through the operation wound of rumpbone internal fixation, the operation safety risk is arranged, its internal fixation intensity can not guarantee fully, the load skewness of internal fixation, anti-internal force and external force resistance degree are lower, at the fixing of single, double side fracture of the sacrum and sacroiliac joint dislocation and the existence risk to a certain extent that resets.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, provides a kind of posterior ring pelvic through rumpbone Wicresoft inner fixer.
The technical solution of the utility model realizes in the following manner, this posterior ring pelvic is through rumpbone Wicresoft inner fixer, its structure comprises hollow screw, bolt, a left side connects steel plate and the right steel plate that is connected, a left side connects steel plate and is connected on the steel plate with right, following two ends offer slotted hole and following slotted hole respectively, a left side connects in the last slotted hole that steel plate and the right side be connected steel plate respectively, and cross-under has hollow screw, bolt cross-under simultaneously connects steel plate and is connected in the following slotted hole of steel plate with right on a left side, the bolt that a left side connects the steel plate place will be bolted to left the connection on the steel plate by hold-down nut and locking nut, and the right bolt that connects the steel plate place will be bolted to right the connection on the steel plate by hold-down nut and locking nut.
The hollow screw nail head adopts cruciate flower ailhead or hexagonal ailhead.
Locking nut adopts the hexagonal locking nut.
The beneficial effect that this utility model compared with prior art produces is:
This posterior ring pelvic has following characteristics through inner fixer system of rumpbone Wicresoft:
1, safety and precise, with the supporting use of navigation system, in the time of can effectively avoiding laying guide pin, bolt or screw in the art to the sacrum ilium do, the damage of blood vessel before sacral nerves, dura mater or the sacrum;
2, wound is little, can finish fixing through bilateral buttocks mini-invasive incision;
3, constant intensity height is formed posterior ring pelvic multi-section position with rumpbone, sacroiliac joint, rumpbone pedicle of vertebral arch and rumpbone vertebral body and is directly run through fixing, and load is evenly distributed, anti-rotation and shear strength height;
4, combination is flexible, according to anatomical variation and reduction of the fracture situation, selects for use screw or screw to fix flexibly, adopts fracture end pressurization or maintenance to fix according to fracture site and reduction of the fracture situation;
5, adaptability is extensive, is applicable to the dislocation of polytype single, double side fracture of the sacrum and sacroiliac joint;
6, the physiology interference is little, can realize directly fixedly securing of posterior ring pelvic when being used for fixing " H " type and " U " type fracture of the sacrum, avoids fixedly lumbar vertebra, and significantly alleviating in the past, the physiology of waist sacrum fixed system disturbs.
This posterior ring pelvic is reasonable in design, simple in structure, safe and reliable, easy to use through rumpbone Wicresoft inner fixer, be easy to safeguard to have good popularizing value.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations that a left side of the present utility model connects steel plate;
Accompanying drawing 3 is user mode structural representations of the present utility model.
Labelling in the accompanying drawing is represented respectively:
1, a left side connects steel plate, and 2, the right steel plate that connects, 3, go up slotted hole, 4, slotted hole down, 5, hollow screw, 6, bolt, 7, hold-down nut, 8, locking nut.
The specific embodiment
Below in conjunction with accompanying drawing posterior ring pelvic of the present utility model below doing, rumpbone Wicresoft inner fixer is described in detail.
As shown in drawings, posterior ring pelvic of the present utility model is through rumpbone Wicresoft inner fixer, its structure comprises hollow screw 5, bolt 6, a left side connects steel plate 1 and the right steel plate 2 that is connected, a left side connects steel plate 1 and is connected on the steel plate 2 with right, following two ends offer slotted hole 3 and following slotted hole 4 respectively, a left side connects in the last slotted hole that steel plate 1 and the right side be connected steel plate 2 respectively, and cross-under has hollow screw 5, bolt 6 cross-under simultaneously connect steel plate 1 and are connected in the following slotted hole 4 of steel plate 2 with right on a left side, the bolt that a left side connects steel plate 1 place is fixed on left be connected steel plate on locking nut 8 with bolt 6 by hold-down nut 7, and the right bolt that connects steel plate 2 places will be bolted to right the connection on the steel plate by hold-down nut and locking nut.Hollow screw 5 nail heads adopt cruciate flower ailhead or hexagonal ailhead.Locking nut 8 adopts the hexagonal locking nut.
This posterior ring pelvic is through inner fixer system of rumpbone Wicresoft, according to a large amount of pelvis CT image datas, and a large amount of human body specimen measurement data, and posterior ring pelvic Wicresoft internal fixation operation experience design for many years.By sleeve, guide pin, dipstick, hollow screw, hollow screwdriver, hollow boring bit, bolt, hold-down nut, locking nut be connected steel plate and form.Sleeve diameter 2.5mm with the supporting use of navigation handle, lays guide pin; Guide pin diameter 2.5mm, long 500mm determine screw or bolt length with the supporting use of dipstick; Hollow screw internal diameter 2.5mm, external diameter 6.5mm, long 40-80mm is divided into pressing type and non-pressurised type, with the supporting use of hollow screwdriver, the fixedly vertebral body of S1 or S2, one-sided pedicle of vertebral arch and homonymy guide pin; Hollow boring bit internal diameter 2.5mm, external diameter 4.5mm is in order to along the guide pin reaming; Diameter of bolt 4.5mm, long 160-400mm is in order to run through vertebral body, bilateral pedicle of vertebral arch and the bilateral ilium of fixing S1 or S2; Hold-down nut, locking nut in order to bolting to connecting on the steel plate; Connect steel plate and adopt the design of bielliptic(al) hole, long 30-60mm is connected and fixed screw or the bolt that passes through S1 or S2 in order to be close to the ilium outer surface.
Claims (3)
1. posterior ring pelvic is through rumpbone Wicresoft inner fixer, it is characterized in that comprising hollow screw, bolt, a left side connects steel plate and the right steel plate that is connected, a left side connects steel plate and is connected on the steel plate with right, following two ends offer slotted hole and following slotted hole respectively, a left side connects in the last slotted hole that steel plate and the right side be connected steel plate respectively, and cross-under has hollow screw, bolt cross-under simultaneously connects steel plate and is connected in the following slotted hole of steel plate with right on a left side, the bolt that a left side connects the steel plate place will be bolted to left the connection on the steel plate by hold-down nut and locking nut, and the right bolt that connects the steel plate place will be bolted to right the connection on the steel plate by hold-down nut and locking nut.
2. posterior ring pelvic according to claim 1 is characterized in that through rumpbone Wicresoft inner fixer the hollow screw nail head adopts cruciate flower ailhead or hexagonal ailhead.
3. posterior ring pelvic according to claim 1 is characterized in that through rumpbone Wicresoft inner fixer locking nut adopts the hexagonal locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017102 CN203153924U (en) | 2013-01-14 | 2013-01-14 | Posterior pelvic ring sacrum minimally invasive internal fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320017102 CN203153924U (en) | 2013-01-14 | 2013-01-14 | Posterior pelvic ring sacrum minimally invasive internal fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203153924U true CN203153924U (en) | 2013-08-28 |
Family
ID=49015156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320017102 Expired - Fee Related CN203153924U (en) | 2013-01-14 | 2013-01-14 | Posterior pelvic ring sacrum minimally invasive internal fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203153924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042193A (en) * | 2018-01-25 | 2018-05-18 | 宁波市第六医院 | Femur bilateral fixing steel plate |
| CN108186098A (en) * | 2018-01-25 | 2018-06-22 | 宁波市第六医院 | A kind of femur bilateral fixing steel plate |
-
2013
- 2013-01-14 CN CN 201320017102 patent/CN203153924U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042193A (en) * | 2018-01-25 | 2018-05-18 | 宁波市第六医院 | Femur bilateral fixing steel plate |
| CN108186098A (en) * | 2018-01-25 | 2018-06-22 | 宁波市第六医院 | A kind of femur bilateral fixing steel plate |
| CN108186098B (en) * | 2018-01-25 | 2024-03-15 | 宁波市第六医院 | Femur double-side positioning steel plate |
| CN108042193B (en) * | 2018-01-25 | 2024-03-15 | 宁波市第六医院 | Femur double-side positioning steel plate |
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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: 20130828 Termination date: 20140114 |