CN103417286A - Screwdriver used for orthopedic surgery - Google Patents
Screwdriver used for orthopedic surgery Download PDFInfo
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- CN103417286A CN103417286A CN2013103169534A CN201310316953A CN103417286A CN 103417286 A CN103417286 A CN 103417286A CN 2013103169534 A CN2013103169534 A CN 2013103169534A CN 201310316953 A CN201310316953 A CN 201310316953A CN 103417286 A CN103417286 A CN 103417286A
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- screwdriver
- cross
- screw
- bone surgery
- shaped
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Abstract
The invention relates to a screwdriver used for an orthopedic surgery. The screwdriver is mainly used in cooperation with a screw spike used for the orthopedic surgery. The screw spike comprises a threaded rod and a screw head. One end of the screw head is connected with one end of the threaded rod, and a cross-shaped groove is formed in the other side of the screw head. A cylindrical groove is formed in the center of the cross-shaped groove, and return force grooves are formed in the two sides of the bottom of the cross-shaped groove. The screwdriver used for the orthopedic surgery comprises a screwdriver body, a screwdriver blade head is arranged at the end of the screwdriver body, a cross-shaped protrusion is arranged on the screwdriver blade head and matched with the cross-shaped groove, a cylinder is arranged in the center of the cross-shaped protrusion and matched with the cylindrical groove, and clamping pieces are arranged on the edge of the side of the top end of the cross-shaped protrusion and matched with the return force grooves. In the orthopedic surgery, people only need to match the cross-shaped protrusion on the screwdriver with the return force grooves in the screw spike, slipping is not prone to occurring, the screw spike can be pulled out through direct rotation of the screwdriver body, people do not need to press to increase friction, harm to a patient is reduced, and the screwdriver is convenient to use rapidly.
Description
Technical field
The present invention relates to the screwdriver field, relate in particular to a kind of screwdriver for bone surgery.
Background technology
Screwdriver, a kind ofly be used for twisting screw to force its instrument in place, and a thin sphenocephaly is arranged usually, can insert in the line of rabbet joint or recess of screw cap---and Beijing-Tianjin Ji dialect is called the ground such as " screwdriver ", Henan, Shaanxi and Hubei and is called bottle opener.Mainly contain two kinds of a word (negative sign) and crosses (positive sign).Common hex(agonal)screw cutter in addition, comprise two kinds of interior hexagonal and outer-hexagonals.
In prior art, in the bone surgery field, during the screwdriver that need to use needs firmly will perform the operation in operation process, screw in human body unclamps and takes out, but for the screw in human body in when dismounting, it should be noted that the painful and damage that the patient bears, if when dismounting, excessive to injury of human, cause the human body restored cycle elongated, and increase patient's misery, common screwdriver is when the dismounting screw, need to press screw, increase frictional force, the generation of skidding while preventing from dismantling, when pressing, the injury of increase to patient's health, the carrying out that is unfavorable for operation.
Summary of the invention
In view of this, be necessary to provide a kind of minimizing patient suffering, do not need to increase the screwdriver for bone surgery that pressure just can easily take out screw.
The present invention realizes like this, a kind of screwdriver for bone surgery, main and the special screw for bone surgery supports the use, described screw comprises screw rod and screw terminal, one end end of one side connecting screw rod of described screw terminal, the opposite side of described screw terminal is provided with cross bath, the center of described cross bath is provided with cylinder shape groove, resilient groove is established in the both sides of the bottom land of described cross bath, the described screwdriver for bone surgery comprises cutter hub, the end of described cutter hub is provided with driver bit, described driver bit is provided with the cross projection be complementary with cross bath, cross convex center position is provided with the cylinder matched with described cylinder shape groove, the side edge place on described cross projection top is provided with in the fastener of described time power groove cooperation.
Further, time power groove of the both sides of the bottom land of described cross bath is symmetrical.
Further, the degree of depth of described cross bath is less than the degree of depth of described cylinder shape groove.
Further, the cross section of described cross bath be shaped as fan-shaped.
Further, the cross section of described cross projection be shaped as fan-shaped.
Further, the radian of described cross projection is less than the radian of the cross bath on described screw terminal.
The advantage of a kind of screwdriver for bone surgery provided by the invention is: by the present invention, in bone surgery, when the dismounting screw, only need will screwdriver on the cross projection coordinate cross bath on supporting screw return the power groove, be difficult for skidding when the dismounting screw, directly rotate cutter hub and just screw can be extracted, do not need by pressing increasing friction force, the injury of minimizing to the patient, convenient and swift.
Described cutter hub middle part is provided with the cylinder matched with the cylinder shape groove of screw, when the dismounting screw, is difficult for making the cutter hub skew, improves removal efficiency.
The accompanying drawing explanation
Fig. 1 is that the present invention is a kind of for the screwdriver of bone surgery and the structural representation of supporting screw with it.
The structure for amplifying schematic diagram that Fig. 2 is the A part in Fig. 1.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1 and Fig. 2, wherein Fig. 1 is that the present invention is a kind of for the screwdriver of bone surgery and the structural representation of supporting screw with it, the structure for amplifying schematic diagram that Fig. 2 is the A part in Fig. 1.
Described a kind of screwdriver for bone surgery, main and the special screw for bone surgery 10 supports the use, described screw 10 comprises screw rod 11 and screw terminal 12, one end end of one side connecting screw rod 11 of described screw terminal 12, the opposite side of described screw terminal 12 is provided with cross bath 121, the center of described cross bath 121 is provided with cylinder shape groove 122, resilient groove 123 is established in the both sides of the bottom land 121a of described cross bath 121, the described screwdriver for bone surgery comprises cutter hub 20, the end of described cutter hub 20 is provided with driver bit 21, described driver bit 21 is provided with the cross projection 211 be complementary with cross bath 121, cross projection 211 centres are provided with the cylinder 212 matched with described cylinder shape groove 122, the side edge place on described cross projection 211 tops is provided with in the fastener 213 of described time power groove 123 cooperations.
Being shaped as of the cross section of described cross bath 121 is fan-shaped, and being shaped as of the cross section of described cross projection 211 is fan-shaped.
The radian of described cross projection 211 is less than the radian of the cross bath 121 on described screw terminal 12.
By the present invention, in bone surgery, when dismounting screw 10, only need will screwdriver on cross projection 211 coordinate cross bath 121 on supporting screw 10 return power groove 123, be difficult for skidding when dismounting screw 10, directly rotate cutter hub 20 and just screw 10 can be extracted, do not need by pressing increasing friction force, the injury of minimizing to the patient, convenient and swift.
Described cutter hub 20 middle parts are provided with the cylinder 212 matched with the cylinder shape groove 122 of screw 10, when dismounting screw 10, are difficult for making cutter hub 20 skews, improve removal efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. the screwdriver for bone surgery, main and the special screw for bone surgery (10) supports the use, described screw (10) comprises screw rod (11) and screw terminal (12), one end end of one side connecting screw rod (11) of described screw terminal (12), the opposite side of described screw terminal (12) is provided with cross bath (121), the center of described cross bath (121) is provided with cylinder shape groove (122), resilient groove (123) is established in the both sides of the bottom land (121a) of described cross bath (121), the described screwdriver for bone surgery comprises cutter hub (20), it is characterized in that, the end of described cutter hub (20) is provided with driver bit (21), described driver bit (21) is provided with the cross projection (211) be complementary with cross bath (121), cross projection (211) centre is provided with the cylinder (212) matched with described cylinder shape groove (122), the side edge place on described cross projection (211) top is provided with the fastener (213) coordinated in described time power groove (123).
2. according to the described a kind of screwdriver for bone surgery of claim 1, it is characterized in that, time power groove (123) of the both sides of the bottom land (121a) of described cross bath (121) is symmetrical.
3. according to the described a kind of screwdriver for bone surgery of claim 1, it is characterized in that, the degree of depth of described cross bath (121) is less than the degree of depth of described cylinder shape groove (122).
4. according to the described a kind of screwdriver for bone surgery of claim 1, it is characterized in that, being shaped as of the cross section of described cross bath (121) is fan-shaped.
5. according to the described a kind of screwdriver for bone surgery of claim 1, it is characterized in that, being shaped as of the cross section of described cross projection (211) is fan-shaped.
6. according to the described a kind of screwdriver for bone surgery of claim 5, it is characterized in that, the radian of described cross projection (211) is less than the radian of the cross bath (121) on described screw terminal (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103169534A CN103417286A (en) | 2013-07-26 | 2013-07-26 | Screwdriver used for orthopedic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103169534A CN103417286A (en) | 2013-07-26 | 2013-07-26 | Screwdriver used for orthopedic surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103417286A true CN103417286A (en) | 2013-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103169534A Pending CN103417286A (en) | 2013-07-26 | 2013-07-26 | Screwdriver used for orthopedic surgery |
Country Status (1)
| Country | Link |
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| CN (1) | CN103417286A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020151899A1 (en) * | 2001-04-17 | 2002-10-17 | Bailey Kirk J. | Anterior cervical plating system |
| WO2004058081A1 (en) * | 2002-12-20 | 2004-07-15 | High Plains Technology Group, Llc | Bone screw fastener and apparatus for inserting and removing same |
| US20070274800A1 (en) * | 2006-05-24 | 2007-11-29 | Bioretec Oy | System to be used with an implanting tool |
| US20080114359A1 (en) * | 2006-11-09 | 2008-05-15 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
| US20080234752A1 (en) * | 2007-03-21 | 2008-09-25 | The University Of North Carolina At Chapel Hill | Surgical plate puller devices and methods for use with surgical bone screw/plate systems |
| DE202009003923U1 (en) * | 2009-03-23 | 2009-05-28 | Helmut Zepf Medizintechnik Gmbh | Medical screw |
| US20100222827A1 (en) * | 2009-02-10 | 2010-09-02 | Bryan Griffiths | Screw with variable diameter cannulation and driver |
| CN203408097U (en) * | 2013-07-26 | 2014-01-29 | 古啸宇 | Screwdriver for orthopedic surgery |
-
2013
- 2013-07-26 CN CN2013103169534A patent/CN103417286A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020151899A1 (en) * | 2001-04-17 | 2002-10-17 | Bailey Kirk J. | Anterior cervical plating system |
| WO2004058081A1 (en) * | 2002-12-20 | 2004-07-15 | High Plains Technology Group, Llc | Bone screw fastener and apparatus for inserting and removing same |
| US20070274800A1 (en) * | 2006-05-24 | 2007-11-29 | Bioretec Oy | System to be used with an implanting tool |
| US20080114359A1 (en) * | 2006-11-09 | 2008-05-15 | Stryker Trauma Gmbh | Polyaxial locking mechanism |
| US20080234752A1 (en) * | 2007-03-21 | 2008-09-25 | The University Of North Carolina At Chapel Hill | Surgical plate puller devices and methods for use with surgical bone screw/plate systems |
| US20100222827A1 (en) * | 2009-02-10 | 2010-09-02 | Bryan Griffiths | Screw with variable diameter cannulation and driver |
| DE202009003923U1 (en) * | 2009-03-23 | 2009-05-28 | Helmut Zepf Medizintechnik Gmbh | Medical screw |
| CN203408097U (en) * | 2013-07-26 | 2014-01-29 | 古啸宇 | Screwdriver for orthopedic surgery |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |
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| WD01 | Invention patent application deemed withdrawn after publication |