CN2067556U

CN2067556U - Automatic tractor for operation of maxillary antrum

Info

Publication number: CN2067556U
Application number: CN90212830U
Authority: CN
Inventors: 沈方
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-10
Filing date: 1990-05-10
Publication date: 1990-12-19

Abstract

The utility model relates to an automatic tractor for operation of maxillary antrum, belonging to a medical appliance, which is mainly composed of a main frame and a towing hook. The utility model is characterized in that the towing hook can omnidirectionally move, and the size of towing force is adjustable; thus, surgical different requirements and the fluctuation of the head of a patient can be met. The utility model has the advantages of simple structure and convenient operation. The utility model can not only lighten the labor intensity of doctors, but can completely save the labor of one doctor.

Description

Automatic tractor for operation of maxillary antrum

The utility model relates to the used traction apparatus of maxillary antrum operation, belong to medical apparatus and instruments.

When implementing maxillary antrum operation, with the hands implement draw specially by an assistant usually, this artificial traction method, its pulling force both be difficult to keep in balance and stablize, and the time is long slightly, and handle is easy to fatigue and slippage takes place.Simultaneously pulling force kicks the beam to state and wildly exposes insufficiently, and as overweight, then soft tissue is subject to wound, to making after-operation response swelling serious, even form ecchymosis or hematoma etc.Abroad, a kind of mouthful of rank formula self-retaining retractor arranged, though the effect that retracts otch is voluntarily arranged, but it works by means of dental articulation power about the patient, so for dental condition or damaged, mandibular joint illness, malocclusion etc. all can not use, other has the silver elastic plate of a kind of usefulness to strut the traction apparatus of otch, the strength size can not be difficult to again keep in balance by the operator regulated at will, a stable and orientation etc.

The purpose of this utility model is exactly a kind of automatic traction apparatus that designs at above-mentioned situation, does not need the manpower traction, can satisfy the different needs of various patients and operation.

Solution of the present utility model is, is designed to the pulley hook, the distance of hook, the traction apparatus that height is all adjustable, and its detailed content is described below referring to accompanying drawing:

This utility model is to be configured to propping up by hook, its principal character is to be contained in tightrope (12), (12A) hook at two ends (6), (13) and increase the weight of the stone roller (5), (14) be contained in the pulley (9) that can arbitrarily rotate by tightrope, (11) on, pulley is contained in the tooth bar (16) that meshes up and down with gear (15) respectively, (17) on, gear, tooth bar is contained in the sleeve (10), support of the present utility model is a lifting type, parallel two disks (7) that are equipped with in its top, have teeth groove (8) on one of them disk, and be connected with sleeve (10) by connecting rod (20), connecting rod (20) afterbody is equipped with a L type handle (21) and is stuck in the teeth groove of disk (7), and handle is equipped with extension spring on (21).The pulling force of hook can be by regulating increasing the weight of to cut or polish jade with an emery wheel the weights that adds Different Weight, thereby the adjusting of hook distance can drive the tooth bar motion by transmitting gear and realize, handle (21) is stuck in the different teeth groove on the disk (7), make just scalable hook height diverse location of sleeve (10) inclination different angles, extension spring makes handle (21) tightly be stuck in the teeth groove, pulley can rotate arbitrarily as required, thereby satisfy different needs, elevating lever scalable high and low position, hook of the present utility model like this can comprehensive activity, thereby satisfies the various needs of different patients and operation.Support of the present utility model is to be made of trocar sheath (1) and interior elevating lever, have the straight trough (2) that communicates with several C type breach on the trocar sheath (1), interior elevating lever is to be made of elevating lever (1B) and moving casing (1A), locating piece (4) is housed on the elevating lever (1B) to be cooperated with the straight trough of trocar sheath (1), handle (3) is housed on the moving casing (1A), during use, to carry and rotate on the handle (3), it is come out from C type breach to straight trough (2), because of moving casing (1A) and elevating lever (1B) are actively set on together, and the locating piece (4) on the elevating lever (1B) is spacing by the straight trough on the trocar sheath (1), so when handle rotates moving casing (1A), elevating lever (1B) is fixed, when handle (3) moves in straight trough, moving casing (1A) just drives elevating lever (1B) and moves up and down, and handle (3) is rotated and is placed in the different C type breach, just reaches the purpose of lifting.

The automatic retractor structures of maxillary antrum operation of the present utility model is simple, easy to use, especially its hook can omnibearing movable, thereby can be according to operation needs and requirement and patient's head position change adjustment at any time, to keep good art open country, the pulling force of hook also can be regulated at any time according to the size and the different patients of art open country, thereby provides suitable size, equilibrium, stable pull strength to satisfy the requirement of operation.This utility model not only can alleviate doctor's labor intensity, and can save a doctor's labour force fully, so have certain social and economic benefit.

Accompanying drawing has been represented specific embodiments of the present utility model, at first to description of drawings:

Fig. 1 represents the structural representation that this is novel;

The side view of Fig. 2 presentation graphs 1;

(1)-trocar sheath; (2)-straight trough; (3)-the hands handle; (4)-locating piece; (5), (14)-increase the weight of to cut or polish jade with an emery wheel; (6), (13)-hook; (7)-disk; (8)-teeth groove; (9), (11)-pulley; (10)-sleeve; (12), (12A)-tightrope; (15)-gear; (16), (17)-tooth bar; (18)-the hands handle; (19)-bolt; (20)-connecting rod; (21)-the hands handle; (1A)-moving casing; (1B)-elevating lever;

According to embodiment shown in the drawings, gear (15) and tooth bar (16), (17) be meshed and be contained in the sleeve (10), tooth bar (16), (17) pulley (9) is equipped with by universal knot in two ends, (11), be wound with tightrope (12) on the pulley, (12A), hook (6) is equipped with at its two ends respectively, (13) and increase the weight of the stone roller (5), (14), the trocar sheath of support (1) upper punch has the straight trough (2) that is connected with C type breach, moving casing (1A) and elevating lever (1B) component are housed in the trocar sheath (1), by the groove on the trocar sheath (1), handle (3) is housed on the moving casing (1A), locating piece (4) is housed on the elevating lever (1B), the elevating lever top is by parallel two disks (7) that are equipped with of bolt (19), wherein have teeth groove (8) on a disk, be connected with connecting rod (20) with this disk, one end of connecting rod (20) and sleeve (10) are affixed, the other end is equipped with L type handle (21) and is stuck in the teeth groove on the disk, handle is equipped with extension spring on (21), so that it tightly is stuck in the teeth groove, above part all can adopt metal material to manufacture.

Claims

1, the automatic traction apparatus of maxillary antrum operation, be to prop up by hook to be configured to, feature of the present utility model is to be contained in tightrope (12), (12A) hook at two ends (6), (13) and increase the weight of the stone roller (5), (14) be contained in the pulley (9) that can arbitrarily rotate by tightrope, (11) on, pulley is contained in the tooth bar (16) that is meshed up and down with gear (15) respectively, (17) on, gear is contained in the sleeve (10), support of the present utility model is a lifting type, parallel two disks (7) that are equipped with in its top, wherein have teeth groove on disk and connect with sleeve (10) by coupling bar (20), coupling bar (20) afterbody is equipped with a L type handle (21) and is stuck in the teeth groove of disk (8), and handle is equipped with extension spring on (21).

2, the automatic traction apparatus of maxillary antrum operation according to claim 1, it is characterized in that support is to be made of trocar sheath (1) and interior elevating lever, have the straight trough that communicates with several C type breach on the trocar sheath (1), interior elevating lever is to be made of elevating lever (1B) and moving casing (1A), locating piece (3) is housed on the elevating lever (1B) cooperates, handle (2) is housed on the moving casing with straight trough on the trocar sheath (1).