CN203408097U - Screwdriver for orthopedic surgery - Google Patents
Screwdriver for orthopedic surgery Download PDFInfo
- Publication number
- CN203408097U CN203408097U CN201320448165.6U CN201320448165U CN203408097U CN 203408097 U CN203408097 U CN 203408097U CN 201320448165 U CN201320448165 U CN 201320448165U CN 203408097 U CN203408097 U CN 203408097U
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- CN
- China
- Prior art keywords
- screwdriver
- cross
- screw
- bone surgery
- groove
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- Expired - Fee Related
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Abstract
The utility model relates to a screwdriver for orthopedic surgery, which is mainly matched with a screw for orthopedic surgery in use. The screw comprises a screw rod and a screw head, wherein one side of the screw head is connected to one end head of the screw rod, and a cross groove is formed in the other side of the screw head; a cylindrical groove is formed in the center of the cross groove, and rebounding grooves are formed in both sides at the bottom of the cross groove. The screwdriver for orthopedic surgery comprises a screwdriver body, wherein a screwdriver head is arranged at the end head of the screwdriver body, the screwdriver head is provided with a cross bump matched with the cross groove, a cylinder matched with the cylindrical groove is arranged in the center of the cross bump, and a clamping piece matched with the rebounding grooves is arranged on the edge of the side at the top end of the cross bump. In orthopedic surgery, the cross bump on the screwdriver is matched with the rebounding grooves in the screw, the screwdriver is unlikely to slide, and the screw can be pulled out by directly rotating the screwdriver body without increasing frictional force by pressing, thereby alleviating the damage to a patient. Therefore, the screwdriver for orthopedic surgery is convenient and efficient to operate.
Description
Technical field
This utility model relates to screwdriver field, relates in particular to a kind of screwdriver for bone surgery.
Background technology
Screwdriver, is a kind ofly used for twisting screw to force its instrument in place, conventionally has a thin sphenocephaly, 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, comprises two kinds of interior hexagonal and outer-hexagonals.
In prior art, in 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 patient bears, if when dismounting, excessive to injury of human, cause human body restored cycle elongated, and increase patient's misery, common screwdriver is when 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.
Utility model content
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.
This utility model is to realize 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, the end, one 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 matching with cross bath, cross convex center position is provided with the cylinder matching with described cylinder shape groove, the side edge place on described cross projection top is provided with the fastener coordinating with described time power groove.
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 that this utility model provides is: pass through this utility model, in bone surgery, when dismounting screw, only need to by screwdriver on cross projection coordinate cross bath on supporting screw return power groove, when dismounting screw, be difficult for skidding, directly rotate cutter hub and just screw can be extracted, do not need by pressing increasing friction force, the injury of minimizing to patient, convenient and swift.
Described cutter hub middle part is provided with the cylinder matching with the cylinder shape groove of screw, when dismounting screw, is difficult for making cutter hub skew, improves removal efficiency.
Accompanying drawing explanation
Fig. 1 is that this utility model is a kind of for the screwdriver of bone surgery and the structural representation of supporting screw with it.
Fig. 2 is the structure for amplifying schematic diagram of the A part in Fig. 1.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction this utility model.
See also Fig. 1 and Fig. 2, wherein Fig. 1 is that this utility model is a kind of for the screwdriver of bone surgery and the structural representation of supporting screw with it, and Fig. 2 is the structure for amplifying schematic diagram of the A part in Fig. 1.
Described a kind of screwdriver for bone surgery, main and the special screw 10 for bone surgery supports the use, described screw 10 comprises screw rod 11 and screw terminal 12, the end, one 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 matching with cross bath 121, cross projection 211 centres are provided with the cylinder 212 matching with described cylinder shape groove 122, the side edge place on described cross projection 211 tops is provided with the fastener 213 coordinating with described time power groove 123.
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.
Pass through this utility model, in bone surgery, when dismounting screw 10, only need to by screwdriver on cross projection 211 coordinate cross bath 121 on supporting screw 10 return power groove 123, when dismounting screw 10, be difficult for skidding, 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 patient, convenient and swift.
Described cutter hub 20 middle parts are provided with the cylinder 212 matching 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 utility model; not in order to limit this utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
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), the end, one 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) matching with cross bath (121), cross projection (211) centre is provided with the cylinder (212) matching with described cylinder shape groove (122), the side edge place on described cross projection (211) top is provided with the fastener (213) coordinating with described time power groove (123).
2. a kind of screwdriver for bone surgery according to claim 1, 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. a kind of screwdriver for bone surgery according to claim 1, 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. a kind of screwdriver for bone surgery according to claim 1, is characterized in that, being shaped as of the cross section of described cross bath (121) is fan-shaped.
5. a kind of screwdriver for bone surgery according to claim 1, is characterized in that, being shaped as of the cross section of described cross projection (211) is fan-shaped.
6. a kind of screwdriver for bone surgery according to claim 5, 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 |
|---|---|---|---|
| CN201320448165.6U CN203408097U (en) | 2013-07-26 | 2013-07-26 | Screwdriver for orthopedic surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448165.6U CN203408097U (en) | 2013-07-26 | 2013-07-26 | Screwdriver for orthopedic surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408097U true CN203408097U (en) | 2014-01-29 |
Family
ID=49971027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320448165.6U Expired - Fee Related CN203408097U (en) | 2013-07-26 | 2013-07-26 | Screwdriver for orthopedic surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203408097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417286A (en) * | 2013-07-26 | 2013-12-04 | 古啸宇 | Screwdriver used for orthopedic surgery |
-
2013
- 2013-07-26 CN CN201320448165.6U patent/CN203408097U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417286A (en) * | 2013-07-26 | 2013-12-04 | 古啸宇 | Screwdriver used for orthopedic surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140129 Termination date: 20170726 |