CN203107268U - Screw removal device - Google Patents

Screw removal device Download PDF

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Publication number
CN203107268U
CN203107268U CN 201320080204 CN201320080204U CN203107268U CN 203107268 U CN203107268 U CN 203107268U CN 201320080204 CN201320080204 CN 201320080204 CN 201320080204 U CN201320080204 U CN 201320080204U CN 203107268 U CN203107268 U CN 203107268U
Authority
CN
China
Prior art keywords
screw rod
plate
straight shank
shank drill
removal device
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
Application number
CN 201320080204
Other languages
Chinese (zh)
Inventor
赵磊
张化武
吕明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Provincial Hospital
Original Assignee
Shandong Provincial Hospital
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Provincial Hospital filed Critical Shandong Provincial Hospital
Priority to CN 201320080204 priority Critical patent/CN203107268U/en
Application granted granted Critical
Publication of CN203107268U publication Critical patent/CN203107268U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Surgical Instruments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The utility model relates to a screw removal device, and belongs to medical apparatuses and instruments. The screw removal device comprises a straight shank drill and a threaded rod. The screw removal device is characterized in that threads are arranged on the upper portion of the straight shank drill, a threaded hole matched with the straight shank drill is formed in the threaded rod, at least one plate is arranged on the threaded rod, a threaded hole which is matched with the threaded hole is formed at the upper end of the plate, and sawteeth are arranged on the lower end portion of the plate. The screw removal device is simple in structure. Due to the fact that the plate is adjustable on the threaded rod, screws with different diameters can be taken out. Due to the fact that according to the screw removal device, the position of the threaded rod in the straight shank drill is adjustable, the height position of the straight shank drill and the height position of the sawteeth are adjustable. The screw removal device is quite convenient to use, capable of relieving pain of a patient, and capable of reducing working difficulty of medical staff.

Description

Nail-fetching device
Technical field
This utility model relates to a kind of nail-fetching device, belongs to medical apparatus and instruments.
Background technology
In clinical; plate screw commonly used carries out internal fixation to fracture site; regular meeting runs into because of the problem of getting rusty or stripped thread is difficult to take out screw when taking out steel plate and screw; mainly be that steel plate screw can not separate, existing technology is to use screwdriver to be inserted in the nail groove on the head of a nail, and nail is got in rotation; so not only troublesome poeration, waste time and energy; also be easy to destroy the nail groove, be difficult to take out nail, increased work difficulty to the medical worker.
Summary of the invention
This utility model is in order to remedy deficiency of the prior art, provides a kind of easy to operate and can alleviate the orthopaedics nail-fetching device of patient's misery when getting nail after union of fracture.
This utility model is implemented by following technical solution: a kind of nail-fetching device, comprise straight shank drill and screw rod, it is characterized in that, the top of described straight shank drill is provided with screw thread, described screw rod is provided with the screwed hole that is complementary with straight shank drill, and be provided with a plate on the screw rod at least, the upper end position of plate is provided with the screwed hole that is complementary with screw rod, and there is sawtooth the bottom of described plate.
Described screwed hole is arranged on the centre position of described screw rod.
Described plate is 2, and is symmetrically distributed on the screw rod with respect to screwed hole.
Described straight shank drill and described screw rod, described plate and described screw rod are fixed together by nut.
Operation principle of the present utility model is: with straight shank drill screw cap is destroyed earlier, take off steel plate then, with the straight shank drill alignment screw center of described nail-fetching device, the plate on the screw rod rotates again, thereby the sawtooth rotary drilling of its end is gone in the sclerotin, screw has just all taken out like this, and the position of screw rod upper plate is adjustable, can take out the screw of different-diameter, very convenient, also alleviated medical worker's work difficulty.
The beneficial effects of the utility model are: this utility model is simple in structure, because plate of the present utility model is adjustable on screw rod, therefore can take out the screw of different-diameter, and screw rod is also adjustable in the position of straight shank drill in this utility model, so height and position scalable of straight shank drill and sawtooth, very convenient and can alleviate patient's misery, and can alleviate medical worker's work difficulty.
Description of drawings
Fig. 1 is the upward view of nail-fetching device of the present utility model;
Fig. 2 is the full sectional view on Figure 1A-A direction;
Among the figure: 1, straight shank drill, 2, screw rod, 3, plate, 4, screwed hole, 5, sawtooth.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described:
Accompanying drawing 1-2 is a kind of specific embodiment of the present utility model, a kind of nail-fetching device, comprise straight shank drill 1 and screw rod 2, it is characterized in that: the top of described straight shank drill 1 is provided with screw thread, described screw rod 2 is provided with the screwed hole 4 that is complementary with straight shank drill 1, described straight shank drill 1 links together by screwed hole 4 and screw rod 2, and be provided with a plate 3 on the screw rod 2 at least, the upper end position of plate 3 is provided with the screwed hole that is complementary with screw rod 2, there is sawtooth 5 bottom of described plate 3, and described plate 3 links together by the screwed hole on it and screw rod 2.
In this utility model, described screwed hole 4 is arranged on the centre position of described screw rod 2.
In this utility model, described plate 3 is 2, and is symmetrically distributed on the described screw rod 2 with respect to screwed hole 4.
In this utility model, described straight shank drill 1 and described screw rod 2, described plate 3 and described screw rod 2 are fixed together by nut.
This utility model in use, with straight shank drill 1 screw cap is destroyed earlier, take off steel plate then, again with the straight shank drill 1 alignment screw center of described nail-fetching device, plate 3 rotations on the screw rod, thereby its end sawtooth 5 rotary drillings are gone in the sclerotin, screw has just all taken out like this, and plate 3 is adjustable on screw rod 2, therefore can take out the screw of different-diameter, screw rod 2 is also adjustable in the position of straight shank drill 1, so the height and position scalable of straight shank drill 1 and sawtooth 5, very convenient and can alleviate patient's misery, and can alleviate medical worker's work difficulty.
Other parts in this utility model adopt prior art, do not repeat them here.

Claims (4)

1. nail-fetching device, comprise straight shank drill (1) and screw rod (2), it is characterized in that: the top of described straight shank drill (1) is provided with screw thread, described screw rod (2) is provided with the screwed hole (4) that is complementary with straight shank drill (1), and be provided with a plate (3) on the screw rod (2) at least, the upper end position of plate (3) is provided with the screwed hole that is complementary with screw rod (2), and there is sawtooth (5) bottom of described plate (3).
2. nail-fetching device according to claim 1, it is characterized in that: described screwed hole (4) is arranged on the centre position of described screw rod (2).
3. nail-fetching device according to claim 1, it is characterized in that: described plate (3) is 2, and is symmetrically distributed on the described screw rod (2) with respect to screwed hole (4).
4. according to claim 1 or 2 or 3 described nail-fetching devices, it is characterized in that: described straight shank drill (1) is fixed together by nut with described screw rod (2) with described screw rod (2), described plate (3).
CN 201320080204 2013-02-21 2013-02-21 Screw removal device Expired - Fee Related CN203107268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320080204 CN203107268U (en) 2013-02-21 2013-02-21 Screw removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320080204 CN203107268U (en) 2013-02-21 2013-02-21 Screw removal device

Publications (1)

Publication Number Publication Date
CN203107268U true CN203107268U (en) 2013-08-07

Family

ID=48887654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320080204 Expired - Fee Related CN203107268U (en) 2013-02-21 2013-02-21 Screw removal device

Country Status (1)

Country Link
CN (1) CN203107268U (en)

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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: 20130807

Termination date: 20160221