CN201684015U - Taking out device for fixed screw at orthopedics department - Google Patents
Taking out device for fixed screw at orthopedics department Download PDFInfo
- Publication number
- CN201684015U CN201684015U CN2010201816086U CN201020181608U CN201684015U CN 201684015 U CN201684015 U CN 201684015U CN 2010201816086 U CN2010201816086 U CN 2010201816086U CN 201020181608 U CN201020181608 U CN 201020181608U CN 201684015 U CN201684015 U CN 201684015U
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- CN
- China
- Prior art keywords
- sleeve
- connecting rod
- hold
- down screw
- orthopaedics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a taking out device for a fixed screw at the orthopedics department. The taking out device comprises a connecting rod (1) and a sleeve (3), wherein the upper end of the sleeve (3) is provided with the connecting rod (1); the lower end of the sleeve (3) is of the sawtooth shape; and a scale mark is arranged on the outer side surface of the sleeve (3), so as to ensure the rotating depth of the sleeve (3), thereby relieving the pain of a patient.
Description
One, technical field
This utility model relates to a kind of orthopaedics hold-down screw withdrawing device, and the material that especially a kind of adaptation is used for fixing screw is the orthopaedics hold-down screw withdrawing device of titanium alloy.
Two, background technology
In bone surgery, rehabilitation for patient, usually use screw that fracture portions is fixed, therefore the hold-down screw taking-up to the patient after the rehabilitation is crucial, orthopaedics hold-down screw withdrawing device is an important armarium, simultaneously, some screw retention time in vivo is long, thereby in the functional exercise that lacks reasonable guidance or in the work, because stress-shielding effect, the segment screw nail meets with stresses huge, cause fracture easily, especially the application of titanium alloy has increased histocompatibility, screw combines with sclerotin closely, thereby when taking out screw, just nut and breechblock might be twisted into two parts, thereby the case of broken nail in clinical is more common, common orthopaedics hold-down screw withdrawing device is manual trepan at present, because it is unidirectional and do not have a scale, not only technology falls behind, and wastes time and energy, and wound is big, and make screw threads dark sometimes, increased patient's misery.
Three, summary of the invention
In order to overcome above-mentioned technical disadvantages, the purpose of this utility model provides a kind of orthopaedics hold-down screw withdrawing device, has alleviated patient's misery.
For achieving the above object, the technical scheme that this utility model is taked is to include, and includes connecting rod and sleeve, and telescopic upper end is provided with connecting rod, and telescopic lower end is set to zigzag, and telescopic lateral surface is provided with graduation mark.
Connecting rod drives sleeve and rotates, and to separating around the hold-down screw, makes hold-down screw and socket joint, thereby takes out hold-down screw, because telescopic lateral surface is provided with graduation mark, has guaranteed the degree of depth of sleeve rotation, has therefore alleviated patient's misery.
This utility model has designed, and the half cycle that the zigzag of telescopic lower end is set to wherein is opposite with other the sawtooth angle of half cycle, can use positive and negative direction to separate around the hold-down screw.
This utility model has designed, and the cross section of connecting rod is set to triangle, makes things convenient for the fixing of handle.
This utility model has designed, also include handle, locking tube, steel ball and spring leaf, handle is arranged on the end face of locking tube, the locking tube is provided with the cavity that matches with connecting rod, be provided with porosely at the horizontal direction of the cavity of locking tube, steel ball is arranged in the hole of locking tube, in the arranged outside of steel ball spring leaf is arranged, spring leaf be set to lock the tube connect, the middle part of connecting rod is provided with and the corresponding recess of steel ball.
Four, description of drawings
Accompanying drawing is a sketch map of the present utility model.
Five, the specific embodiment
Accompanying drawing is an embodiment of the present utility model, specify present embodiment in conjunction with the accompanying drawings, include connecting rod 1, sleeve 3, handle 4, locking tube 5, steel ball 6 and spring leaf 7, the upper end of sleeve 3 is provided with connecting rod 1, the lower end of sleeve 3 is set to zigzag, the half cycle that the zigzag of the lower end of sleeve 3 is set to wherein is opposite with other the sawtooth angle of half cycle, the lateral surface of sleeve 3 is provided with graduation mark, the cross section of connecting rod 1 is set to triangle, handle 4 is arranged on the end face of locking tube 5, locking tube 5 is provided with the cavity that matches with connecting rod 1, be provided with porosely at the horizontal direction of the cavity of locking tube 5, steel ball 6 is arranged in the hole of locking tube 5, in the arranged outside of steel ball 6 spring leaf 7 is arranged, spring leaf 7 is set to and locks tube and 5 connect, and the middle part of connecting rod 1 is provided with and steel ball 6 corresponding recesses.
In the present embodiment, to be set to sleeve 3 bottoms be the altitude line of zero graduation line to the graduation mark of sleeve 3.
During locking bit, spring leaf 7 is pressed into steel ball 6, and the locking bayonet socket of connecting rod 1 is fixed, realize locking, when separating lock-bit, spring leaf 7 glides, steel ball 6 ejects the recess of connecting rod 1, realizes decompress(ion), and handle 4 is connected with connecting rod 1, swing handle 4 drives sleeve 3 and rotates, and to separating around the hold-down screw, hold-down screw is connected with sleeve 3, thereby the taking-up hold-down screw, when separating lock-bit, spring leaf 7 glides, steel ball 6 ejects the recess of connecting rod 1, realizes decompress(ion), and handle 4 is separated with connecting rod 1; Connecting rod 1 is connected with electric drilling machine.
The characteristics that the utlity model has:
1, the at first conventional screw that exposes, the scar tissue around the cleaning screw. If the nail tail exposes, then select suitable big or small trepan, broken nail (or screw) and sclerotin are on every side got out certain interval, screw is taken out. Note, the operation beginning, forward, reverse trepan are all available, according to sleeve scale and screw length, if reverse sleeve trepan during near ailhead, should be selected in the bone hole, prevent that screw from forward creeping into deep tissue. If screw is disconnected, then choosing is made guide pin with screw or the Kirschner wire of broken nail same diameter, inserts broken nail bone hole, selects suitable big or small trepan by above-mentioned steps, and broken nail (or screw) and sclerotin are on every side got out certain interval, and screw is taken out. Manual and electric can freely be changed in this process.
But 2, manually, also reversible revolving of electric dual-purpose dextrorotation, and indicate scale, prevent from piercing dark or single direction rotation with the screw deep drilling, thereby safety, wound are little, handle is multi-edged, lockable, change fast.
Claims (5)
1. orthopaedics hold-down screw withdrawing device; It is characterized in that: include connecting rod (1) and sleeve (3), the upper end of sleeve (3) is provided with connecting rod (1), and the lower end of sleeve (3) is set to zigzag, and the lateral surface of sleeve (3) is provided with graduation mark.
2. orthopaedics hold-down screw withdrawing device according to claim 1; It is characterized in that: it is the altitude line of zero graduation line that the graduation mark of sleeve (3) is set to sleeve (3) bottom.
3. orthopaedics hold-down screw withdrawing device according to claim 1; It is characterized in that: the half cycle that the zigzag of the lower end of sleeve (3) is set to wherein is opposite with other the sawtooth angle of half cycle.
4. orthopaedics hold-down screw withdrawing device according to claim 1; It is characterized in that: the cross section of connecting rod (1) is set to triangle.
5. according to claim 1,2,3 or 4 described orthopaedics hold-down screw withdrawing devices; It is characterized in that: also include handle (4), locking tube (5), steel ball (6) and spring leaf (7), handle (4) is arranged on the end face of locking tube (5), locking tube (5) is provided with the cavity that matches with connecting rod (1), horizontal direction at the cavity that locks tube (5) is provided with porose, steel ball (6) is arranged in the hole of locking tube (5), arranged outside at steel ball (6) has spring leaf (7), spring leaf (7) is set to connect with locking tin (5), and the middle part of connecting rod (1) is provided with and the corresponding recess of steel ball (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201816086U CN201684015U (en) | 2010-05-07 | 2010-05-07 | Taking out device for fixed screw at orthopedics department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201816086U CN201684015U (en) | 2010-05-07 | 2010-05-07 | Taking out device for fixed screw at orthopedics department |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684015U true CN201684015U (en) | 2010-12-29 |
Family
ID=43372306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201816086U Expired - Fee Related CN201684015U (en) | 2010-05-07 | 2010-05-07 | Taking out device for fixed screw at orthopedics department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102232866A (en) * | 2010-05-07 | 2011-11-09 | 国华 | Device for taking out fixing screw in orthopaedics |
-
2010
- 2010-05-07 CN CN2010201816086U patent/CN201684015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102232866A (en) * | 2010-05-07 | 2011-11-09 | 国华 | Device for taking out fixing screw in orthopaedics |
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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: 20101229 Termination date: 20120507 |