CN204379427U - A kind of nail-fetching device for orthopaedics - Google Patents
A kind of nail-fetching device for orthopaedics Download PDFInfo
- Publication number
- CN204379427U CN204379427U CN201520010860.3U CN201520010860U CN204379427U CN 204379427 U CN204379427 U CN 204379427U CN 201520010860 U CN201520010860 U CN 201520010860U CN 204379427 U CN204379427 U CN 204379427U
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- nail
- gripping sheet
- screw
- getting
- fastening sleeve
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Abstract
The utility model discloses a kind of nail-fetching device for orthopaedics, comprise two vertical rods and be socketed in two pieces of gripper shoes in two vertical rods, the bottom of described vertical rod is equipped with a fixture, be inserted with one in two pieces of gripper shoes and get nail bar, the bottom of getting nail bar is provided with a universal joint, universal joint with get ailhead and be connected, get ailhead and comprise fastening sleeve, fastening sleeve is connected with gripping sheet, and gripping sheet is built with spring, and gripping sheet one end is provided with chuck.This utility model structure is simple, getting nail bar and getting between ailhead universal joint is set, the direction had an effect can be automatically adjusted according to the situation of screw, further, the structure installation of gripping sheet, chuck and fastening sleeve and spring, avoid in prior art easily break disconnected screw, destruction nail groove or harm people soma situation occur, reduce screw and take out difficulty, reduce the secondary injury to patient, effectively raise the taking-up to damaged screw, broken nail, bring great convenience to surgical.
Description
Technical field
This utility model relates to orthopaedics medical instruments field, specifically a kind of nail-fetching device for orthopaedics.
Background technology
In orthopaedic clinical practice, fracture is a kind of common orthopedic injury, and the usual method for the treatment of trauma fracture is after the bone reduction by fracture site, the skeletal fixation that wound occurs is connected with screw with steel plate again, until after the skeleton self-regeneration that wound occurs completes, again fixing screw and steel plate are taken out, but, in the process of taking out, screw and steel plate are easily sticked together, so, common screwdriver due to its moment of torsion less, screw is difficult to pull down, many miseries are added to patient, also inconvenience is brought to medical worker, and, common operation is got nail method and is easily destroyed nail groove and human body with screw to the tissue closed on mutually, also disconnected screw is easily broken, add the taking-up difficulty of screw, easily make fracture site again impaired, secondary injury is brought to patient, taking-up particularly for broken nail does not have effective quick removal equipment especially, great inconvenience is brought to surgical.
Utility model content
The purpose of this utility model is to provide a kind of nail-fetching device for orthopaedics, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme:
A kind of nail-fetching device for orthopaedics, comprise two vertical rods and be socketed in two pieces of gripper shoes in two vertical rods, the bottom of described vertical rod is equipped with a fixture, be inserted with one in two pieces of gripper shoes and get nail bar, the bottom of getting nail bar is provided with a universal joint, universal joint with get ailhead and be connected, get ailhead and comprise fastening sleeve, fastening sleeve is connected with gripping sheet, gripping sheet is built with spring, gripping sheet one end is provided with chuck, fastening sleeve inwall has and the screw thread of gripping sheet to silk, described getting between nail bar and gripper shoe is provided with bearing, get on nail bar and be fixed with a driven wheel, the side of driven wheel is provided with a single u-shaped guide rail, the opening of U-shaped guide rail is rectified driven wheel, a toothed rack is provided with in U-shaped guide rail, tooth bar is meshed with driven wheel, tight fixed bolt is provided with between described gripper shoe and vertical rod.
As further program of the utility model: described fixture comprises U-shaped cutting ferrule, the bottom of U-shaped cutting ferrule is provided with set bolt.
As further program of the utility model: described gripping sheet totally three, be hollow cylinder after closed.
As further program of the utility model: the hollow interior circular diameter that the chuck on described gripping sheet closes rear formation is 0.5cm.
Compared with prior art, this utility model structure is simple, when screw back-outed by needs time, vertical rod is fixed, then tight fixed bolt is unclamped, adjustment gripper shoe and the height getting nail bar, the position of getting ailhead of getting bottom nail bar is adapted with the position of the screw that will take out, after adjusting to the right place, tighten tight fixed bolt, gripper shoe can not be slided along vertical rod, finally tooth bar is inserted in U-shaped guide rail, tooth bar is meshed with driven wheel, the end face of tooth bar is knocked with hammer, rotated by rack drives driven wheel, under the drive of driven wheel, get the counter-rotating of nail bar, thus screw is back-outed, wholely get in nail process, tooth bar is larger to the moment of torsion getting nail bar by driven wheel, and can vibration be produced in the process of knocking tooth bar at hammer, thus screw is easy to take out, not easily there is the phenomenon of screw extraction, very easy to use, the bottom of every root vertical rod is equipped with a fixture, fixture comprises U-shaped cutting ferrule, the bottom of U-shaped cutting ferrule is provided with set bolt, U-shaped cutting ferrule is socketed on sick bed or operating-table, then set bolt is tightened, get final product firm being fixed by whole orthopedic nail extractor, in addition, getting nail bar and getting between ailhead universal joint is set, the direction had an effect can be automatically adjusted according to the situation of screw, and, gripping sheet, the structure installation of chuck and fastening sleeve and spring, avoid in prior art and easily break disconnected screw, the situation destroying nail groove or harm people soma occurs, reduce screw and take out difficulty, reduce the secondary injury to patient, effectively raise damaged screw, the taking-up of broken nail, bring great convenience to surgical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation getting ailhead in this utility model.
Fig. 3 is the structural representation of chuck in this utility model.
Fig. 4 is the structural representation that this utility model middle rack engages with driven wheel.
In figure: 1-vertical rod, 2-gripper shoe, 3-bearing, 4-driven wheel, 5-tooth bar, 6-U type guide rail, 7-get nail bar, 8-U type cutting ferrule, 9-set bolt, 10-tight fixed bolt, 11-universal joint, 12-gripping sheet, 13-chuck, 14-spring, 15-screw thread, 16-fastening sleeve, 17-get ailhead.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, be clearly and completely described the technical scheme in this utility model embodiment, obviously, described embodiment is only this utility model part embodiment, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of this utility model protection.
Refer to Fig. 1 ~ 4, in this utility model embodiment, a kind of nail-fetching device for orthopaedics, the two pieces of gripper shoes 2 comprising two vertical rods 1 and be socketed in two vertical rods 1, the bottom of described vertical rod 1 is equipped with a fixture, fixture comprises U-shaped cutting ferrule 8, the bottom of U-shaped cutting ferrule 8 is provided with set bolt 9, be inserted with one in two pieces of gripper shoes 2 and get nail bar 7, the bottom of getting nail bar 7 is provided with a universal joint 11, getting nail bar 7 and getting between ailhead 17 universal joint 11 is set, the direction had an effect can be automatically adjusted according to the situation of screw, universal joint 11 with get ailhead 17 and be connected, get ailhead 17 and comprise fastening sleeve 16, fastening sleeve 16 is connected with gripping sheet 12, gripping sheet 12 totally three, be hollow cylinder after closed, gripping sheet 12 is built with spring 14, gripping sheet 12 one end is provided with chuck 13, the hollow interior circular diameter formed after chuck 13 on gripping sheet 12 is closed is 0.5cm, fastening sleeve 16 inwall has and the screw thread 15 of gripping sheet 12 to silk, gripping sheet 12, the structure installation of chuck 13 and fastening sleeve 16 and spring 14, avoid in prior art and easily break disconnected screw, the situation destroying nail groove or harm people soma occurs, reduce screw and take out difficulty, reduce the secondary injury to patient, effectively raise damaged screw, the taking-up of broken nail, bring great convenience to surgical, in use spring 14 is contained in after in gripping sheet 12, gripping sheet 12 is inserted in fastening sleeve 16, rotational fastener sleeve 16, screw thread 15 in fastening sleeve 16 is connected silk with the screw thread on gripping sheet 12 outer wall, then rotational fastener sleeve 16, spring 14 is compressed, gripping sheet 12 inwardly closes, the closed mouth size of adjustment, chuck 13 is enclosed within screw, screw can be taken out, as being broken nail, after then removing broken nail surrounding tissue, use fastening sleeve 16 that chuck 13 is clamped broken nail part, taking-up broken nail, described getting between nail bar 7 and gripper shoe 2 is provided with bearing 3, get on nail bar 7 and be fixed with a driven wheel 4, the side of driven wheel 4 is provided with a single u-shaped guide rail 6, the opening of U-shaped guide rail 6 is rectified driven wheel 4, a toothed rack 5 is provided with in U-shaped guide rail 6, tooth bar 5 is meshed with driven wheel 4, tight fixed bolt 10 is provided with between described gripper shoe 2 and vertical rod 1, when screw back-outed by needs time, vertical rod 1 is fixed, then tight fixed bolt 10 is unclamped, adjustment gripper shoe 2 and the height getting nail bar 7, the position of getting ailhead 17 of getting bottom nail bar 7 is adapted with the position of the screw that will take out, after adjusting to the right place, tighten tight fixed bolt 10, gripper shoe 2 can not be slided along vertical rod 1, finally tooth bar 5 is inserted in U-shaped guide rail 6, tooth bar 5 is meshed with driven wheel 4, the end face of tooth bar 5 is knocked with hammer, driven wheel 4 is driven to rotate by tooth bar 5, under the drive of driven wheel 4, get the counter-rotating of nail bar 7, thus screw is back-outed, wholely get in nail process, tooth bar is larger to the moment of torsion getting nail bar 7 by driven wheel 4, and can vibration be produced in the process of knocking tooth bar 5 at hammer, thus screw is easy to take out, not easily there is the phenomenon of screw extraction, very easy to use, the bottom of every root vertical rod 1 is equipped with a fixture, fixture comprises U-shaped cutting ferrule 8, the bottom of U-shaped cutting ferrule 8 is provided with set bolt 9, U-shaped cutting ferrule 8 is socketed on sick bed or operating-table, then set bolt 9 is tightened, can firm whole orthopedic nail extractor be fixed.
To those skilled in the art, obvious this utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or basic feature, can realize this utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in this utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. a nail-fetching device for orthopaedics, comprise two vertical rods and be socketed in two pieces of gripper shoes in two vertical rods, it is characterized in that, the bottom of described vertical rod is equipped with a fixture, be inserted with one in two pieces of gripper shoes and get nail bar, the bottom of getting nail bar is provided with a universal joint, universal joint with get ailhead and be connected, get ailhead and comprise fastening sleeve, fastening sleeve is connected with gripping sheet, gripping sheet is built with spring, gripping sheet one end is provided with chuck, fastening sleeve inwall has and the screw thread of gripping sheet to silk, described getting between nail bar and gripper shoe is provided with bearing, get on nail bar and be fixed with a driven wheel, the side of driven wheel is provided with a single u-shaped guide rail, the opening of U-shaped guide rail is rectified driven wheel, a toothed rack is provided with in U-shaped guide rail, tooth bar is meshed with driven wheel, tight fixed bolt is provided with between described gripper shoe and vertical rod.
2. nail-fetching device for orthopaedics according to claim 1, is characterized in that, described fixture comprises U-shaped cutting ferrule, and the bottom of U-shaped cutting ferrule is provided with set bolt.
3. nail-fetching device for orthopaedics according to claim 1, is characterized in that, described gripping sheet totally three, is hollow cylinder after closed.
4. nail-fetching device for orthopaedics according to claim 1, is characterized in that, the hollow interior circular diameter that the chuck on described gripping sheet closes rear formation is 0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010860.3U CN204379427U (en) | 2015-01-08 | 2015-01-08 | A kind of nail-fetching device for orthopaedics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520010860.3U CN204379427U (en) | 2015-01-08 | 2015-01-08 | A kind of nail-fetching device for orthopaedics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204379427U true CN204379427U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520010860.3U Expired - Fee Related CN204379427U (en) | 2015-01-08 | 2015-01-08 | A kind of nail-fetching device for orthopaedics |
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| CN (1) | CN204379427U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104939907A (en) * | 2015-07-26 | 2015-09-30 | 赵全明 | Memory alloy bone plate dismantling device |
| CN104939906A (en) * | 2015-07-26 | 2015-09-30 | 赵全明 | Memory alloy bone plate dismantling device |
| CN105877834A (en) * | 2016-04-11 | 2016-08-24 | 李建南 | High-efficiency nail removing device for orthopedic operation |
| CN106037925A (en) * | 2016-06-03 | 2016-10-26 | 烟台南山学院 | Trephine broken screw extractor |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
| CN107485441A (en) * | 2015-07-16 | 2017-12-19 | 梁艳 | Nail-fetching device for orthopaedics |
| CN107496022A (en) * | 2017-10-18 | 2017-12-22 | 李欢欢 | A kind of operation device for fetching nail for orthopaedic medical treatment |
| CN109199567A (en) * | 2018-10-29 | 2019-01-15 | 于跃强 | A kind of extractor for bone-pin for four limbs |
| CN109276307A (en) * | 2018-12-04 | 2019-01-29 | 吴峣 | A kind of neck pedicle of vertebral arch broken nail withdrawing device |
| CN111297466A (en) * | 2020-04-07 | 2020-06-19 | 张斌 | Novel screw taking device in orthopedic field |
| CN111529036A (en) * | 2020-05-11 | 2020-08-14 | 张君伟 | Nail extractor for orthopedics department |
| CN111938801A (en) * | 2020-08-13 | 2020-11-17 | 林文 | Nail placing forceps for minimally invasive surgery |
| CN112656502A (en) * | 2020-12-10 | 2021-04-16 | 郑娟 | Clinical disconnected nail remove device that uses of orthopedic surgery |
-
2015
- 2015-01-08 CN CN201520010860.3U patent/CN204379427U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485440B (en) * | 2015-07-16 | 2019-08-13 | 王中良 | Orthopaedics takes nail guide |
| CN107485441B (en) * | 2015-07-16 | 2019-07-16 | 广州市星尔菲医疗器械有限公司 | Orthopaedics takes nail guide |
| CN107485439B (en) * | 2015-07-16 | 2019-06-14 | 宫儒靖 | Orthopaedics takes nail guide |
| CN107485441A (en) * | 2015-07-16 | 2017-12-19 | 梁艳 | Nail-fetching device for orthopaedics |
| CN107485439A (en) * | 2015-07-16 | 2017-12-19 | 梁艳 | Bone surgery is with taking screw guiding device |
| CN107485440A (en) * | 2015-07-16 | 2017-12-19 | 梁艳 | Orthopaedics device for fetching nail |
| CN104939906A (en) * | 2015-07-26 | 2015-09-30 | 赵全明 | Memory alloy bone plate dismantling device |
| CN104939907A (en) * | 2015-07-26 | 2015-09-30 | 赵全明 | Memory alloy bone plate dismantling device |
| CN105877834B (en) * | 2016-04-11 | 2018-03-23 | 刘安成 | A kind of bone surgery device for fetching nail |
| CN105877834A (en) * | 2016-04-11 | 2016-08-24 | 李建南 | High-efficiency nail removing device for orthopedic operation |
| CN106037925A (en) * | 2016-06-03 | 2016-10-26 | 烟台南山学院 | Trephine broken screw extractor |
| CN106821488A (en) * | 2017-04-07 | 2017-06-13 | 中国人民解放军总医院 | A kind of screw is fixed and takes out auxiliary sleeve |
| CN106821488B (en) * | 2017-04-07 | 2023-08-11 | 中国人民解放军总医院 | Auxiliary sleeve for screw fixation and taking out |
| CN107496022A (en) * | 2017-10-18 | 2017-12-22 | 李欢欢 | A kind of operation device for fetching nail for orthopaedic medical treatment |
| CN109199567A (en) * | 2018-10-29 | 2019-01-15 | 于跃强 | A kind of extractor for bone-pin for four limbs |
| CN109276307A (en) * | 2018-12-04 | 2019-01-29 | 吴峣 | A kind of neck pedicle of vertebral arch broken nail withdrawing device |
| CN111297466A (en) * | 2020-04-07 | 2020-06-19 | 张斌 | Novel screw taking device in orthopedic field |
| CN111529036A (en) * | 2020-05-11 | 2020-08-14 | 张君伟 | Nail extractor for orthopedics department |
| CN111938801A (en) * | 2020-08-13 | 2020-11-17 | 林文 | Nail placing forceps for minimally invasive surgery |
| CN111938801B (en) * | 2020-08-13 | 2022-03-04 | 林文 | Nail placing forceps for minimally invasive surgery |
| CN112656502A (en) * | 2020-12-10 | 2021-04-16 | 郑娟 | Clinical disconnected nail remove device that uses of orthopedic surgery |
| CN112656502B (en) * | 2020-12-10 | 2023-02-28 | 郑娟 | Clinical disconnected nail remove device that uses of 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 |
Granted publication date: 20150610 Termination date: 20160108 |