CN209713112U - A kind of forcing screw for sufferers of osteoporosis face - Google Patents
A kind of forcing screw for sufferers of osteoporosis face Download PDFInfo
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- CN209713112U CN209713112U CN201822092673.0U CN201822092673U CN209713112U CN 209713112 U CN209713112 U CN 209713112U CN 201822092673 U CN201822092673 U CN 201822092673U CN 209713112 U CN209713112 U CN 209713112U
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- screw
- hole
- sufferers
- bone cement
- thread
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Abstract
The utility model relates to bone surgery the field of medical instrument technology, especially a kind of forcing screw for sufferers of osteoporosis face.It is made of for the forcing screw of sufferers of osteoporosis face head of screw, shank of screw, screw tail, central through hole；It is integrally machined by metal material.The head of screw is equipped with self tapping mouth, coarse-pitch thread and bone cement hole；The shank of screw is non-threaded polished rod；The screw tail is equipped with self tapping mouth, fine thread and Hexagon hole；The central through hole runs through head of screw, shank of screw, screw tail.The coarse-pitch thread screw pitch is P, and the fine thread screw pitch is 0.5P.The bone cement hole is through-hole, and with screw end surface at angle, angle is coarse thread helix angle.At least 2, the bone cement hole, adjacent bone cement hole are 60o~90o at angular region.The utility model compares conventional screw, and the pressurization after can be realized sufferers of osteoporosis face trauma fracture is fixed.
Description
Technical field
The utility model relates to a kind of bone surgery the field of medical instrument technology, especially a kind of to be directed to sufferers of osteoporosis face
Forcing screw.
Background technique
Currently, with the development of society, the raising of human living standard, China human mortality astogeny phenomenon are more and more significant.
Consequent, senile fracture's incidence gradually rise, and for the traumatic fractue of the elderly, surgical operation is effectively to control
Treatment means.The purpose of operation is to reset fracture, fix, and keeps original stability.With surgical technic and reason
The development of opinion, clinical operation method are also constantly improving, but use screws to progress Fracture internal fixaiion and be still most simple, have
The treatment means of effect.
Traditional forcing screw is very common in Fracture internal fixaiion, by carrying out bone to fracture end with pressurization principle
Broken line pressurization is fixed, and fixed effect is good.But patient serious for osteoporosis, traditional forcing screw can not achieve
Better fixed effect, it may appear that the situation of postoperative de- nail, solid failure, so as to cause second operation.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of forcing screw for sufferers of osteoporosis face.Needle
To deficiency in the prior art, bone cement hole is set using in the ailhead core diameter of thread, after fracture line pressurization in art, toward center
Bone cement is injected in through-hole, then bone cement is overflowed from bone cement hole, thus solid in reaching better after fracture with compressive
Determine effect, avoid solid failure, gives patient's bring pain so as to cause second operation, improve the success rate of operation.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of forcing screw for sufferers of osteoporosis face is made of head of screw, shank of screw, screw tail, central through hole,
And it is integrally machined by metal material；The head of screw is equipped with self tapping mouth, coarse-pitch thread and bone cement hole；The shank of screw is nothing
Screw thread polished rod；The screw tail is equipped with self tapping mouth, fine thread and Hexagon hole；The central through hole through head of screw, shank of screw,
Screw tail.
The screw head thread is the nonstandard coarse-pitch thread that screw pitch is P, and the screw tail screw thread is that screw pitch is the nonstandard of 0.5P
Fine thread.
The bone cement hole is through-hole, and with screw end surface at angle, angle is coarse thread helix angle.
At least 2, the bone cement hole, and adjacent bone cement hole is the o of 60 o~90 at angular region.
Through the above technical solutions, the beneficial effect of technical solutions of the utility model is: provided by the utility model is one
Kind is directed to the forcing screw of sufferers of osteoporosis face, main that at least two bone cement holes are arranged using in head of screw, thus into
Bone cement is injected in heart through-hole, then bone cement is overflowed from bone cement hole, can be reached good interior fixed effect, be avoided
Solid failure gives patient's bring pain so as to cause second operation, improves the success rate of operation；The central through hole can
It is inserted into guide pin, guiding role is provided when facilitating screw placement, and provide bone cement channel；The head of screw coarse-pitch thread and screw
Tail fine thread can be realized the pressurization of fracture site.The utility model compares conventional screw, can be realized sufferers of osteoporosis face wound
Pressurization after injury of the bone folding is fixed, and avoids the risk due to the de- nail of osteoporosis bring and second operation to a certain extent.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is a kind of forcing screw structural schematic diagram for sufferers of osteoporosis face disclosed in the utility model.
The corresponding title of number is as follows in figure:
(1) head of screw, (2) shank of screw, (3) screw tail, (4) central through hole；(1-1) self tapping mouth A,
(1-2) coarse-pitch thread, (1-3) bone cement hole, (1-4) self tapping mouth B, (3-1) self tapping mouth C, (3-2) is thin
Screw thread, (3-3) Hexagon hole.
Specific embodiment
The technical solution of the utility model is described in further detail now in conjunction with attached drawing, attached drawing is rough schematic view, only
Illustrate its basic structure in a schematic way.
Referring to attached drawing 1, the utility model provides a kind of forcing screw for sufferers of osteoporosis face, specifically includes screw
Head (1), shank of screw (2), screw tail (3), central through hole (4), self tapping mouth A(1-1), coarse-pitch thread (1-2), bone cement hole (1-3),
Self tapping mouth B(1-4), self tapping mouth C(3-1), fine thread (3-2), Hexagon hole (3-3).
A kind of forcing screw for sufferers of osteoporosis face be by head of screw (1), shank of screw (2), screw tail (3),
Central through hole (4) is constituted, and is integrally machined by metal material；Head of screw (1) tip is equipped with self tapping mouth A(1-1),
Outer end face is equipped with coarse-pitch thread (1-2) and bone cement hole (1-3), and head of screw (1) tail portion is equipped with self tapping mouth B(1-4)；The screw
Bar (2) is non-threaded polished rod；The screw tail (3) is equipped with self tapping mouth C(3-1 at shank of screw (2)), outer end face is equipped with thin
Screw thread (3-2) and Hexagon hole (3-3)；The central through hole (4) runs through head of screw (1), shank of screw (2), screw tail (3).
The coarse-pitch thread (1-2) of the head of screw (1) is the nonstandard screw thread that screw pitch is P, the fine thread of the screw tail (3)
(3-2) is the nonstandard screw thread that screw pitch is 0.5P.
The bone cement hole (1-3) is through-hole, and with head of screw (1) end face at angle, angle is the spiral of coarse-pitch thread (1-2)
Lift angle.
The bone cement hole (1-3) at least 2, and adjacent bone cement hole (1-3) is the o of 60 o~90 at angular region.
A kind of forcing screw for sufferers of osteoporosis face, the self tapping mouth A(1- that head of screw (1) tip is equipped with
1) and the screw tail (3) is equipped with self tapping mouth C(3-1 at shank of screw (2)) can make when pedicle screw it is simpler, save
Power；
Head of screw (1) tail portion is equipped with self tapping mouth B(1-4) it can be simpler, laborsaving in taking-up implantation material；The spiral shell
The fine thread (3-2) that the coarse-pitch thread (1-2) and screw tail (3) end face screw pitch that ailhead (1) end face screw pitch is P are 0.5P is incorporated in
Together, it can be realized the pressurization of fracture site；The central through hole (4) is inserted into guide pin, facilitates to provide when screw placement and lead
To effect, and provide bone cement channel；A kind of forcing screw for sufferers of osteoporosis face is arranged in head of screw (1)
At least two bone cement holes (1-3), thus injecting bone cement in the central through hole (4), then bone cement is from bone cement hole (1-
3) it overflows, good interior fixed effect can be reached, avoid solid failure, give patient's bring so as to cause second operation
Pain improves the success rate of operation.
Through the foregoing embodiment, technical solutions of the utility model efficiently solve conventional press screw for osteoporosis
The postoperative solid failure of patient, screw abjection, second operation bring ailing possibility to patient.The utility model is realized for bone
Good interior fixation in the loose patient's art of matter, postoperative, ensure that the rehabilitation of patient.
It is enlightenment with the ideal case of above-mentioned the utility model, by above-mentioned explanation, relevant staff can be not
Deviate and modifies in thought range of the invention.The technical scope of the utility model is not limited to interior on specification
Hold, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (5)
1. a kind of forcing screw for sufferers of osteoporosis face, which is characterized in that led to by head of screw, shank of screw, screw tail, center
Hole is constituted；The head of screw is equipped with self tapping mouth, coarse-pitch thread and bone cement hole；The shank of screw is non-threaded polished rod；The screw
Tail is equipped with self tapping mouth, fine thread and Hexagon hole；The central through hole runs through head of screw, shank of screw, screw tail.
2. a kind of forcing screw for sufferers of osteoporosis face according to claim 1, which is characterized in that the coarse-pitch thread
Screw pitch is P, and the fine thread screw pitch is 0.5P.
3. a kind of forcing screw for sufferers of osteoporosis face according to claim 1, which is characterized in that the bone cement
Hole is through-hole, and with screw end surface at angle, angle is coarse thread helix angle.
4. a kind of forcing screw for sufferers of osteoporosis face according to claim 1, which is characterized in that the bone cement
At least 2, hole, adjacent bone cement hole are the o of 60 o~90 at angular region.
5. a kind of forcing screw for sufferers of osteoporosis face according to claim 1, it is characterised in that: by metal material
It is integrally machined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822092673.0U CN209713112U (en) | 2018-12-13 | 2018-12-13 | A kind of forcing screw for sufferers of osteoporosis face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822092673.0U CN209713112U (en) | 2018-12-13 | 2018-12-13 | A kind of forcing screw for sufferers of osteoporosis face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209713112U true CN209713112U (en) | 2019-12-03 |
Family
ID=68676991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822092673.0U Active CN209713112U (en) | 2018-12-13 | 2018-12-13 | A kind of forcing screw for sufferers of osteoporosis face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209713112U (en) |
-
2018
- 2018-12-13 CN CN201822092673.0U patent/CN209713112U/en active Active
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