CN202982133U - Medical manual drill - Google Patents

Medical manual drill Download PDF

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Publication number
CN202982133U
CN202982133U CN 201220546709 CN201220546709U CN202982133U CN 202982133 U CN202982133 U CN 202982133U CN 201220546709 CN201220546709 CN 201220546709 CN 201220546709 U CN201220546709 U CN 201220546709U CN 202982133 U CN202982133 U CN 202982133U
Authority
CN
China
Prior art keywords
end
screw mandrel
screw rod
drill bit
drill
Prior art date
Application number
CN 201220546709
Other languages
Chinese (zh)
Inventor
安月勇
张同良
梁秀芬
李艳
Original Assignee
安月勇
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 安月勇 filed Critical 安月勇
Priority to CN 201220546709 priority Critical patent/CN202982133U/en
Application granted granted Critical
Publication of CN202982133U publication Critical patent/CN202982133U/en

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Abstract

The utility model discloses a manual drill which comprises a drill head and a screw rod. One end of the screw rod is provided with an inserted groove of the drill head, and the drill head is arranged in the drill head inserted groove and fixed by utilizing an adjusting nut. A fixing nut is arranged on the screw rod above the adjusting nut, and the other end of the screw rod is sleeved with a one-way bearing which drives the screw rod to rotate. A spring is sleeved on the screw rod between the one-way bearing and the fixing nut. The other end of the one-way bearing is fixed with a hollow containing tube capable of containing the screw rod, and the other end of the containing tube is provided with an operating handle. A screw rod principle is utilized for providing punching power so that the object of punching can be achieved when an operator accurately finds a punching position, and the occurrence of a complication in the punching process by an electric drill or a bone file is avoided, and a sense of fear of the patient is reduced.

Description

A kind of medical hand drill

Technical field

This utility model relates to a kind of medical apparatus and instruments, is specifically related to the hand drill that punches on a kind of medical bone.

Background technology

When clinically the thinner bone of sclerotin being punched, multiplex puncture needle punctures.As the paranasal sinuses puncture, sometimes because of individual variation, the thicker puncture failure that causes of sclerotin can only be used electric drill instead or bone file punches.

When clinically the thicker bone of sclerotin being punched, multiplex electric drill or bone file.When using electric drill, dynamics and direction are not easy to grasp, and might cause also that bone subsides, the complication such as bone splits or mucosa injury.

The utility model content

For guaranteeing that this utility model provides a kind of medical hand drill that utilizes machine power that puncture force is provided to the success rate of the thinner bone punching of sclerotin.Concrete scheme is as follows: a kind of medical hand drill, comprise drill bit, it is characterized in that, also comprise a screw mandrel, one end of described screw mandrel is provided with the drill bit slot, described drill bit is arranged in the drill bit slot and utilizes regulating nut to fix, on the screw mandrel above regulating nut, hold-doun nut is set, the other end of described screw mandrel is socketed with the unilateral bearing that drives the screw mandrel rotation, on screw mandrel between unilateral bearing and hold-doun nut, cover has spring, the other end of unilateral bearing is fixed with the containing pipe that hollow can be held screw mandrel, is provided with operating handle at the other end of containing pipe.

For preventing that hand drill from being polluted: the end that between described unilateral bearing and hold-doun nut, cover has antipollution protective sleeve, described protective sleeve to be positioned at hold-doun nut contacts with screw mandrel, and an end that is positioned at unilateral bearing contacts with containing pipe.

Be punching more easily: the end that described drill bit is used for punching is broached-tooth design, and wherein the center of drill bit is most advanced and sophisticated higher than the needle-like of periphery sawtooth.

For more punching power is provided: the length of described protective sleeve is equal to or less than the length of containing pipe.

Control for convenience screw mandrel: described operating handle is to be fixed on the containing pipe termination and with the laminated structure of containing pipe termination sealing.

This utility model utilizes the screw mandrel principle that perforation power is provided, make the operator only need to find punching position accurately and can realize the purpose of boring a hole, the punching process is without electric machine rotation sound, and perforation is laborsaving rapidly, not only reduced the generation of complication but also reduced patient's fear.This utility model utilizes the screw mandrel principle, and dynamics is easily grasped, and is difficult for causing that bone subsides, the complication such as bone splits or mucosa injury.Adopt machine power not need electric power, more convenient and be easy to sterilize in uses.

Description of drawings

Fig. 1 structural representation of the present utility model;

The structural representation of drill bit in Fig. 2 this utility model.

Attached number in the figure explanation: 1-drill bit, 2-screw mandrel, 3-unilateral bearing, 4-regulating nut, 5-hold-doun nut, 6-spring, 7-containing pipe, 8-operating handle, 9-protective sleeve.

The specific embodiment

As shown in Figure 1, medical hand drill of the present utility model, comprise drill bit 1, also comprise a screw mandrel 2, an end at screw mandrel 2 is provided with the drill bit slot, drill bit 1 is arranged in the drill bit slot and utilizes regulating nut 4 fixing, on the screw mandrel 2 above regulating nut 4, hold-doun nut 5 is set, the other end of screw mandrel 2 is socketed with the unilateral bearing 3 that drives screw mandrel 2 rotations, on screw mandrel 2 between unilateral bearing 3 and hold-doun nut 5, cover has spring 6, the other end of unilateral bearing 3 is fixed with the containing pipe 7 that hollow can be held screw mandrel 2, is provided with operating handle 8 at the other end of containing pipe 7.The screw mandrel 2 that this utility model utilization cooperatively interacts and unilateral bearing 3 drive drill bit 1 rotation, be the connected mode of ball screw between the two, when work, push handle 8, operating handle 8 promotes unilateral bearing 3 by containing pipe 7 and moves downward, and in motor process, the elastic force that unilateral bearing 3 overcomes spring 6 promotes screw mandrel 2 rotations, the upper end of screw mandrel 2 enters in containing pipe 7 simultaneously, this moment screw mandrel 2 drive hold-doun nuts 5 and drill bit 1 rotation; After unclamp operation handle 8, unilateral bearing 3 is pushed back original position under the elastic force effect of spring 6, but counter-rotating can not occur this moment.By a hand-held protective sleeve (9), another hands promotes operating handle 8 power is provided in the punching process.Drill bit slot on screw mandrel 2 is consistent with the drill bit slot of three limit openings of routine, after the stiff end insertion with drill bit 1, utilizes regulating nut 4 to screw distance between three limits, thereby drill bit 1 is fixed on the inside.

In order to prevent polluting and be convenient to sterilization, this utility model overlaps an end that has antipollution protective sleeve 9, protective sleeve 9 to be positioned at hold-doun nut and contacts with screw mandrel 1 between unilateral bearing 3 and hold-doun nut 5, and an end that is positioned at unilateral bearing contacts with containing pipe 7.Protective sleeve 9 can be comprised of two parts, utilizes screw thread to be connected, and is convenient to like this demolition and maintenance and repairing.Protective sleeve 9 can also provide more stable assurance for the operator simultaneously.During work, containing pipe 7 can enter in protective sleeve 9 under the promotion of operating handle 8.

As shown in Figure 2, for punching more quickly and easily, the end that this utility model drill bit 1 is used for punching is set to broached-tooth design, and wherein the center of drill bit is most advanced and sophisticated higher than the needle-like of periphery sawtooth, can play fixation like this, and prevents that drill bit from breakking away.

For utilizing the power of screw mandrel 2 fully, wherein the length of screw mandrel 2 is equal to or less than the length of containing pipe 7, and the length of protective sleeve 9 is equal to or less than the length of containing pipe 7.

In order to control more easily unilateral bearing 3, this programme is set to operating handle 8 to be fixed on the containing pipe termination and with the laminated structure of containing pipe termination sealing, comprises that circle, ellipse, three-dimensional arc etc. are suitable for arbitrarily structure firmly.

the above is only preferred embodiment of the present utility model, be not that this utility model is done any pro forma restriction, although this utility model discloses as above with preferred embodiment, yet be not to limit this utility model, anyly be familiar with the technical staff of this patent within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of this utility model scheme.

Claims (5)

1. medical hand drill, comprise drill bit (1), it is characterized in that, also comprise a screw mandrel (2), one end of described screw mandrel (2) is provided with the drill bit slot, described drill bit (1) is arranged in the drill bit slot and utilizes regulating nut (4) fixing, on the screw mandrel (2) of regulating nut (4) top, hold-doun nut (5) is set, the other end of described screw mandrel (1) is socketed with the unilateral bearing (3) that drives the screw mandrel rotation, on screw mandrel between unilateral bearing (3) and hold-doun nut (5), cover has spring (6), the other end of unilateral bearing (3) is fixed with hollow can hold the containing pipe of screw mandrel (7), the other end at containing pipe (7) is provided with operating handle (8).
2. a kind of medical hand drill as claimed in claim 1; it is characterized in that; between described unilateral bearing (3) and hold-doun nut (5), cover has antipollution protective sleeve (9); the end that described protective sleeve (9) is positioned at hold-doun nut contacts with screw mandrel (1), and an end that is positioned at unilateral bearing contacts with containing pipe (7).
3. a kind of medical hand drill as claimed in claim 1, is characterized in that, the end that described drill bit (1) is used for punching is broached-tooth design, and wherein the center of drill bit is most advanced and sophisticated higher than the needle-like of periphery sawtooth.
4. a kind of medical hand drill as claimed in claim 2, is characterized in that, the length of described protective sleeve (9) is equal to or less than the length of containing pipe (7).
5. a kind of medical hand drill as claimed in claim 1, is characterized in that, described operating handle (8) is for being fixed on the containing pipe termination and with the laminated structure of containing pipe termination sealing.
CN 201220546709 2012-10-24 2012-10-24 Medical manual drill CN202982133U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220546709 CN202982133U (en) 2012-10-24 2012-10-24 Medical manual drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220546709 CN202982133U (en) 2012-10-24 2012-10-24 Medical manual drill

Publications (1)

Publication Number Publication Date
CN202982133U true CN202982133U (en) 2013-06-12

Family

ID=48553367

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220546709 CN202982133U (en) 2012-10-24 2012-10-24 Medical manual drill

Country Status (1)

Country Link
CN (1) CN202982133U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103961152A (en) * 2013-07-19 2014-08-06 牛晓滨 Locking type drill bit protector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103961152A (en) * 2013-07-19 2014-08-06 牛晓滨 Locking type drill bit protector

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: An Yueyong

Inventor after: Liang Xiufen

Inventor after: Luo Huifang

Inventor after: Xu Hui

Inventor before: An Yueyong

Inventor before: Zhang Tongliang

Inventor before: Liang Xiufen

Inventor before: Li Yan

C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: AN YUEYONG ZHANG TONGLIANG LIANG XIUFEN LI YAN TO: AN YUEYONG LIANG XIUFENLUO HUIFANG XU HUI

EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130612

Termination date: 20141024