CN203988328U - A kind of dynamic pressurized double-head hollow nail - Google Patents
A kind of dynamic pressurized double-head hollow nail Download PDFInfo
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- CN203988328U CN203988328U CN201420381998.XU CN201420381998U CN203988328U CN 203988328 U CN203988328 U CN 203988328U CN 201420381998 U CN201420381998 U CN 201420381998U CN 203988328 U CN203988328 U CN 203988328U
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- screw thread
- nail
- pressure rings
- ailhead
- nail tail
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Abstract
The utility model discloses a kind of dynamic pressurized double-head hollow nail, belong to Orthopedic medical treatment equipment, comprise rivet nut, nail tail screw thread, ailhead screw thread, hexagonal pyramid hole, core hole, from tap holder, pressure rings and groove; Described dynamic pressurized double-head hollow nail consists of ailhead, rivet nut, nail tail and pressure rings, and described ailhead is provided with from tap holder, and described ailhead arranged outside has ailhead screw thread; In described rivet nut, be provided with core hole, described nail tail arranged outside has nail tail screw thread, and described nail tail inner side is provided with hexagonal pyramid hole, and described pressure rings is provided with ring female thread and ring external screw thread, and described pressure rings is socketed on the nail tail screw thread of described nail tail; During operation, by turn rivet nut, be screwed into after skeleton, turn pressure rings, makes fracture site pressurization; This novel skeleton trauma fracture end that is applicable to is connected and fixed use, and mounted configuration is fastening, stable, and turn pressure rings is as required determined the effect of pressurizeing, and avoids fracture face to become flexible slippage, shortens operating time, promotes success rate of operation.
Description
Technical field
This utility model relates to a kind of orthopaedic medical treatment equipment technical equipment field, particularly a kind of dynamic pressurized double-head hollow nail.
Background technology
In recent years, development along with communications, building industry etc., the Annual occurence rate of fracture is in rising trend, and be current topmost effective Therapeutic Method by surgical operation, the object of operation is again to recover normal sequence and curvature, height and the mobility of fracture, maintain original stability, and improve pressurized function of nervous system.Along with all kinds of new operations are theoretical and the improvement of technique for fixing, clinical operation method also constantly improves, and adopting screw internal fixation treatment fracture is the most effective Therapeutic Method.
Medical hollow compressive threaded nail is generally used in orthopaedics internal fixation operation, by the utilization principle of pressurizeing, adopt cannulated lag screw directly to fix fracture, engage the broken ends of fractured bone or the osteotomy end of fracture, fixed effect is certain, is conducive to recover the healing of original state and skeleton, performs the operation simple, shorten operating time, improve success rate of operation.Deficiency of the prior art is compression strength when inadequate, just needs to increase quantity or additional other implant of implanting hollow nail, extends operating time; How increasing the pressurization dynamics of hollow nail, is the target that industry is being pursued always.
Utility model content
For solving the problems of the technologies described above, this utility model provides a kind of dynamic pressurized double-head hollow nail, for deficiency of the prior art, adopt pressure rings and hexagonal pyramid hole mode, the design of application double-head hollow pin structure, the pressurization bed knife of raising titanium alloy hollow nail, avoid fracture face to become flexible slippage, thereby reduce surgery implant quantity, shorten operating time, promote success rate of operation.
For achieving the above object, the technical solution of the utility model is as follows: a kind of dynamic pressurized double-head hollow nail, comprise rivet nut, nail tail screw thread, ailhead screw thread, hexagonal pyramid hole, core hole, from tap holder, pressure rings, ring female thread, ring external screw thread and groove, it is characterized in that:
Described dynamic pressurized double-head hollow nail consists of ailhead, rivet nut, nail tail and pressure rings, and described ailhead is provided with from tap holder, and described ailhead arranged outside has ailhead screw thread; Described rivet nut is pipe body, is provided with core hole in described rivet nut, and described core hole is inner through described ailhead, rivet nut and nail tail, and described core hole is circular port; Described nail tail arranged outside has nail tail screw thread, described nail tail inner side is provided with hexagonal pyramid hole, and described hexagonal pyramid hole taper direction inwardly reduces gradually for following closely tail end-side, and the hexagonal pyramid hole of narrowing is gradually conducive to the location of instrument, also be conducive to increase the contact area of the application of force, and then increase fixedly dynamics; Described pressure rings is annular solid, described pressure rings inside is provided with ring female thread, described pressure rings outer setting has ring external screw thread, described pressure rings one end is provided with groove, for dynamic fastening pressurization, described pressure rings is socketed on the nail tail screw thread of described nail tail, and the ring female thread of described pressure rings mates setting with the nail tail screw thread of described nail tail.
Described ailhead screw thread is different with the nail tail diameter of thread, and the described nail tail diameter of thread is greater than the described ailhead diameter of thread, therefore, in operation, resets and can a step complete with pressure process.
Described groove is provided with four, and described groove arranges according to cross orientation.
Described hexagonal pyramid hole, makes in operation process simple, the longer hexagonal pyramid hole of location and pressurization, has increased contact area, has effectively increased active force, and the torsion being screwed into is larger and be easy to take out.
Described dynamic pressurized double-head hollow nail diameter is 3mm-10mm.
Described nail tail screw thread is provided with anti-back sheet, and when pressure rings rotates into after anti-back sheet, described anti-back sheet can automatic locking pressure rings.
Described pressure rings capable of dynamic regulates the size of amount of pressurization, by regulating the degree of depth of described pressure rings to be fixed on the version that forms fixing-stable on skeleton.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: adopt pressure rings and hexagonal pyramid hole mode, the design of application double-head hollow pin structure, hexagonal pyramid hole operation is convenient with implantation, improve the pressurization bed knife of titanium alloy hollow nail, avoid fracture face to become flexible slippage, thereby reduce surgery implant quantity, shorten operating time, promote success rate of operation; Be applicable to skeleton trauma fracture end and be connected and fixed use, mounted configuration is fastening, stable, and turn pressure rings according to the actual needs, determines the effect of pressurization.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the disclosed a kind of dynamic pressurized double-head hollow pin structure schematic diagram of this utility model embodiment;
Fig. 2 is the disclosed a kind of dynamic pressurized double-head hollow nail left view schematic diagram of this utility model embodiment;
Fig. 3 is the axial cutaway view schematic diagram of the disclosed a kind of dynamic pressurized double-head hollow nail pressure rings of this utility model embodiment;
Fig. 4 is that the disclosed a kind of dynamic pressurized double-head hollow of this utility model embodiment is bound figure schematic diagram.
Numeral and the represented corresponding component title of letter in figure:
1. rivet nut 2. is followed closely tail screw thread 3. ailhead screw thread 4. hexagonal pyramid holes
5. core hole 6. is from tap holder 7. pressure rings 8. ring female threads
9. encircle external screw thread 10. grooves
The specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only this utility model part embodiment, rather than whole embodiment.Embodiment based in this utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of this utility model protection.
According to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this utility model provides a kind of dynamic pressurized double-head hollow nail, comprises rivet nut 1, nail tail screw thread 2, ailhead screw thread 3, hexagonal pyramid hole 4, core hole 5, from tap holder 6, pressure rings 7, ring female thread 8, ring external screw thread 9 and groove 10.
Described dynamic pressurized double-head hollow nail consists of ailhead, rivet nut 1, nail tail and pressure rings 7, and described ailhead is provided with from tap holder 6, and described ailhead arranged outside has ailhead screw thread 3; Described rivet nut 1 is pipe body, in described rivet nut 1, is provided with core hole 5, and described core hole 5 is inner through described ailhead, rivet nut 1 and nail tail, and described core hole 5 is circular port; Described nail tail arranged outside has nail tail screw thread 2, described nail tail inner side is provided with hexagonal pyramid hole 4, described hexagonal pyramid hole 4 taper directions inwardly reduce gradually for following closely tail end-side, the hexagonal pyramid hole 4 of narrowing is gradually conducive to the location of instrument, also be conducive to increase the contact area of the application of force, and then increase fixedly dynamics; Described pressure rings 7 is annular solid, described pressure rings 7 inside are provided with ring female thread 8, described pressure rings 7 outer setting have ring external screw thread 9, described pressure rings 7 one end are provided with groove 10, for dynamic fastening pressurization, described pressure rings 7 is socketed on the nail tail screw thread 2 of described nail tail, and the ring female thread 8 of described pressure rings 7 mates setting with the nail tail screw thread 2 of described nail tail.
Described ailhead screw thread 3 is different with nail tail screw thread 2 diameters, and the diameter of described nail tail screw thread 2 is greater than the diameter of described ailhead screw thread 3, therefore, in operation, resets and can a step complete with pressure process.
Described groove 10 is provided with four, and described groove 10 arranges according to cross orientation.
Described hexagonal pyramid hole 4, makes location and simple, the longer hexagonal pyramid hole 4 of pressurizeing in operation process, has increased contact area, has effectively increased active force, is screwed into torsion more greatly and is easy to and take out.
Described nail tail screw thread 2 is provided with anti-back sheet, when pressure rings 7 rotates into after anti-back sheet, and can automatic locking pressure rings 7.
The diameter of described dynamic pressurized double-head hollow nail different size is φ 3.0mm; φ 3.5mm; φ 4.5mm; φ 6.5mm.
By above-mentioned specific embodiment, the beneficial effects of the utility model are: adopt pressure rings and hexagonal pyramid hole mode, the design of application double-head hollow pin structure, hexagonal pyramid hole operation is convenient with implantation, improve the pressurization bed knife of titanium alloy hollow nail, avoid fracture face to become flexible slippage, thereby reduce surgery implant quantity, shorten operating time, promote success rate of operation, be applicable to skeleton trauma fracture end and be connected and fixed use, mounted configuration is fastening, stable, and turn pressure rings according to the actual needs, determines the effect of pressurizeing.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use this utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, this utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. dynamic pressurized double-head hollow nail, is characterized in that, comprises rivet nut, nail tail screw thread, ailhead screw thread, hexagonal pyramid hole, core hole, from tap holder, pressure rings, ring female thread, ring external screw thread and groove; Described dynamic pressurized double-head hollow nail consists of ailhead, rivet nut, nail tail and pressure rings, and described ailhead is provided with from tap holder, and described ailhead arranged outside has ailhead screw thread; Described rivet nut is pipe body, is provided with core hole in described rivet nut, and described core hole is inner through described ailhead, rivet nut and nail tail, and described core hole is circular port; Described nail tail arranged outside has nail tail screw thread, and described nail tail inner side is provided with hexagonal pyramid hole, and described hexagonal pyramid hole taper direction inwardly reduces gradually for following closely tail end-side; Described pressure rings is annular solid, described pressure rings inside is provided with ring female thread, described pressure rings outer setting has ring external screw thread, described pressure rings one end is provided with groove, described pressure rings is socketed on the nail tail screw thread of described nail tail, and the ring female thread of described pressure rings mates setting with the nail tail screw thread of described nail tail.
2. a kind of dynamic pressurized double-head hollow nail according to claim 1, is characterized in that, described ailhead screw thread is different with the nail tail diameter of thread, and the described nail tail diameter of thread is greater than the described ailhead diameter of thread.
3. a kind of dynamic pressurized double-head hollow nail according to claim 1, is characterized in that, described groove is provided with four, and described groove arranges according to cross orientation.
4. a kind of dynamic pressurized double-head hollow nail according to claim 1, is characterized in that, described dynamic pressurized double-head hollow nail diameter is 3mm-10mm.
5. a kind of dynamic pressurized double-head hollow nail according to claim 1, is characterized in that, described nail tail screw thread is provided with anti-back sheet, and when pressure rings rotates into after anti-back sheet, described anti-back sheet can automatic locking pressure rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381998.XU CN203988328U (en) | 2014-07-11 | 2014-07-11 | A kind of dynamic pressurized double-head hollow nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381998.XU CN203988328U (en) | 2014-07-11 | 2014-07-11 | A kind of dynamic pressurized double-head hollow nail |
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| Publication Number | Publication Date |
|---|---|
| CN203988328U true CN203988328U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420381998.XU Active CN203988328U (en) | 2014-07-11 | 2014-07-11 | A kind of dynamic pressurized double-head hollow nail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
| CN111714173A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | Novel ligament insertion staple around knee joint |
-
2014
- 2014-07-11 CN CN201420381998.XU patent/CN203988328U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105342678A (en) * | 2015-12-15 | 2016-02-24 | 徐强 | Secondary screw and bone screw adopting same |
| CN111714173A (en) * | 2020-06-29 | 2020-09-29 | 中国人民解放军总医院 | Novel ligament insertion staple around knee joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |