CN202740082U

CN202740082U - Portable herringbone tweezers

Info

Publication number: CN202740082U
Application number: CN 201220475806
Authority: CN
Inventors: 许燕; 陈捷; 陈秀芝
Original assignee: First Affiliated Hospital of Shantou University Medical College
Current assignee: First Affiliated Hospital of Shantou University Medical College
Priority date: 2012-09-18
Filing date: 2012-09-18
Publication date: 2013-02-20
Anticipated expiration: 2022-09-18

Abstract

The utility model relates to portable herringbone tweezers. The tweezers comprise a first tweezer arm, a second tweezer arm, a first rack, a second rack and a tension spring, wherein the first tweezer arm is connected with the upper end of the second tweezer arm; the fixed end of the first rack is hinged with the upper part of the first tweezer arm, and wedges on the first rack are downward; the fixed end of the second rack is fixedly connected with the upper part of the second tweezer arm; the second rack is positioned under the first rack, and wedges of the second rack are upward; the first rack is engaged with the second rack; and two ends of the tension spring are respectively connected with the movable end of the first rack and the fixed end of the second rack. After an object is picked up and the hand is released, the first rack is tightly buckled on the second rack in the action of the tension spring, so that the first tweezer arm and the second tweezer arm are kept at fixed opening amplitude, and a doctor can hold the tweezers without clamping the first tweezer arm and the second tweezer arm with the hand, therefore, the fatigue of the hand can be greatly reduced, the palm is prevented from aching, the operation intensity of the doctor can be reduced, and the doctor can be kept in an excellent state.

Description

A kind of lightweight herringbone tweezer

Technical field

This utility model relates to a kind of medical apparatus and instruments, relates in particular to a kind of lightweight herringbone tweezer.

Background technology

The herringbone tweezer, a kind of tweezers for the tweezer article, comprise the first tweezer arm and the second tweezer wall, the upper end of the first tweezer arm and the second tweezer arm links together, the elastic force that produces during owing to metal bending, therefore, when wanting the tweezer article, need to apply clamping power to the centre to the first tweezer arm and the second tweezer arm, and keep always, until put down article.

The herringbone tweezer is a kind of apparatus commonly used in the surgical operation, in surgical procedures, the doctor often need to be with keeping certain posture behind the herringbone tweezer tweezer article and keeping the long time, doctor's hands just must apply the clamping power to the centre to the first tweezer arm, the second tweezer arm always, time one is long, and hands is just very tired, and palm is ached very much, cause doctor's duty to descend, even might produce maloperation.

Because other most industries when using herringbone tweezer tweezer article, generally need not the clamping long period at ordinary times, mobile a bit of distance is just unclamped after the clamping tweezer often, so the general fatigue that can not cause hands can cause aching of palm.Just because of in most applications, all be of short duration use herringbone tweezer, its of short duration use can't cause any discomfort, therefore, never the people improves the structure of herringbone tweezer for these a kind of special circumstances of surgeon, uses for a long time the herringbone tweezer still very inconvenient.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of lightweight herringbone tweezer, and this lightweight herringbone tweezer is fit to long-time the use, can keep the fixing amplitude of opening behind the tweezer article, significantly alleviates the fatigue strength of hands, avoids palm to ache.The technical scheme that adopts is as follows:

A kind of lightweight herringbone tweezer comprises the first tweezer arm and the second tweezer arm, the first tweezer arm be connected the upper end of tweezer arm and connect, it is characterized in that: also comprise the first tooth bar, the second tooth bar and tension spring; The upper articulation of the stiff end of the first tooth bar and the first tweezer arm, the double wedge of the first tooth bar is down; The stiff end of the second tooth bar is fixedly connected with the top of the second tweezer arm, and the second tooth bar is in the below of the first tooth bar, and the double wedge of the second tooth bar up; The first tooth bar is meshed with the second tooth bar; The two ends of tension spring are connected with the movable end of the first tooth bar, the stiff end of the second tooth bar respectively.

When the amplitude of opening that will adjust between the first tweezer arm and the second tweezer arm, when carrying out the tweezer article, strut or clamping the first tweezer arm and the second tweezer arm with hands, when strutting power or clamping power and produce active force upwards greater than the downward active force of tension spring at the double wedge place of the first tooth bar, the first tooth bar has around the resupinate trend of pin joint, the first tooth bar and the second tooth bar are along the length relative motion of the first tooth bar (or second tooth bar), thereby so that the first tweezer arm and the second tweezer arm open or mutually clamping, carry out the tweezer article; Behind the tweezer article, unclamp hands, strut power or clamping power and disappear, but the first tooth bar is under the use of tension spring, be held on the second tooth bar, the first tooth bar and the second tooth bar are difficult to relative motion, keep the fixing amplitude of opening, the doctor no longer needs with hands clamping the first tweezer arm and the second tweezer arm, as long as hold, significantly alleviate the fatigue strength of hands, avoid palm to ache, alleviate doctor's manipulation strength, make the doctor can keep good state.

As preferred version of the present utility model, it is characterized in that: the outside of described the first tweezer arm and the second tweezer arm is provided with anti-skidding striped.By the anti-skidding striped of arranged outside at the first tweezer arm and the second tweezer arm, the operations such as more convenient herringbone tweezer is held, clamping.

This utility model compared with prior art has following advantage:

Owing to being provided with the structure of the first tooth bar, the second tooth bar and tension spring, at the tweezer article and after unclamping hands, the first tooth bar is under the use of tension spring, be held on the second tooth bar, the first tooth bar and the second tooth bar are difficult to relative motion, so that the first tweezer arm and the second tweezer arm are kept the fixing amplitude of opening, the doctor no longer needs with hands clamping the first tweezer arm and the second tweezer arm, as long as hold, significantly alleviate the fatigue strength of hands, avoid palm to ache, alleviate doctor's manipulation strength, make the doctor can keep good state.

Description of drawings

Fig. 1 is the structural representation of this utility model preferred implementation.

The specific embodiment

Be described further below in conjunction with accompanying drawing and preferred implementation of the present utility model.

As shown in Figure 1, this lightweight herringbone tweezer comprises the first tweezer arm 1, the second tweezer arm 2, the first tooth bar 3, the second tooth bar 4 and tension spring 5; The first tweezer arm 1 be connected the upper end of tweezer arm 2 and connect; The upper articulation of the stiff end of the first tooth bar 3 and the first tweezer arm 1, the double wedge of the first tooth bar 3 is down; The stiff end of the second tooth bar 4 is fixedly connected with the top of the second tweezer arm 2, and the second tooth bar 4 is in the below of the first tooth bar 3, and the double wedge of the second tooth bar 4 up; The first tooth bar 3 is meshed with the second tooth bar 4; The two ends of tension spring 5 are connected with the movable end of the first tooth bar 3, the stiff end of the second tooth bar 4 respectively; The outside of the first tweezer arm 1 and the second tweezer arm 2 also is provided with anti-skidding striped 5.

In addition; need to prove, the specific embodiment described in this description, its each several part titles etc. can be different; allly conceive equivalence or the simple change that described structure, feature and principle are done according to this utility model patent, be included in the protection domain of this utility model patent.This utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.

Claims

1. a lightweight herringbone tweezer comprises the first tweezer arm and the second tweezer arm, the first tweezer arm be connected the upper end of tweezer arm and connect, it is characterized in that: also comprise the first tooth bar, the second tooth bar and tension spring; The upper articulation of the stiff end of the first tooth bar and the first tweezer arm, the double wedge of the first tooth bar is down; The stiff end of the second tooth bar is fixedly connected with the top of the second tweezer arm, and the second tooth bar is in the below of the first tooth bar, and the double wedge of the second tooth bar up; The first tooth bar is meshed with the second tooth bar; The two ends of tension spring are connected with the movable end of the first tooth bar, the stiff end of the second tooth bar respectively.

2. lightweight herringbone tweezer as claimed in claim 1, it is characterized in that: the outside of described the first tweezer arm and the second tweezer arm is provided with anti-skidding striped.