CN2282859Y

CN2282859Y - Adjustable medical small needle knife

Info

Publication number: CN2282859Y
Application number: CN 96227931
Authority: CN
Inventors: 薛军
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-23
Filing date: 1996-05-23
Publication date: 1998-06-03
Anticipated expiration: 2006-05-23

Abstract

The utility model discloses a new-type adjustable medical small needle knife. The small needle knife can be accurately sent into a cutting position without cutting a small opening so as to avoid operation accidental injuries in surgical operations. The utility model is formed by that one end of a hollow needle body is connected with a small needle knife through a rotating shaft, one end of a pulling rod arranged in an inner cavity of the needle body is connected with the small needle knife through a linking shaft, the other end of the hollow needle body is connected with a handle which is provided with a sliding groove of a pull rod, the pulling rod is positioned together with a pull rod handle and the end part of the pulling rod is connected with a spring which is arranged in the handle. The utility model has the characteristics of convenient use, flexible operation and easy popularization.

Description

A kind of adjustable medical small needle knife

This utility model belongs to medical surgical technique with the apparatus field, is specially a kind of adjustable medical small needle knife.

Small needle knife is a kind of medical treatment apparatus that has pin and two kinds of functions of cutter concurrently, in clinical, the tissue of adhesion can be peeled off, the retardance mediation, skin and flesh is not cut again, it is the good combination of cutter and pin, therefore be widely used, the small needle knife of application is gone up by cutter hub by society at present, the needle body and handle of a knife three parts are formed, its needle body is a solid construction, cutter hub is positioned at needle body front end, handle of a knife is positioned at needle body rear end, though the small needle knife of this structure has the function of pin and cutter, but in operation, need small incision that small needle knife is sent into the position that needs cutting, increased patient's wound, simultaneously because the angle of the blade in small needle knife the place ahead is right angle or pure angle, the resistance that runs into during insertion is bigger, also increased difficulty for accurately small needle knife being sent into required therapentic part, be prone to operation and accidentally injure, this is the unsurmountable defective of existing small needle knife.

Task of the present utility model is at above-mentioned the deficiencies in the prior art, providing a kind of need not cut osculum and small needle knife can be sent into accurately cutting part in operation, be enough to avoid operating the medical small needle knife of novel adjustable of accidental injury, and have easy to use, flexible operation, be suitable for universal characteristics.

Task of the present utility model takes following scheme to realize: its structure is to be connected with small needle knife by turning cylinder by the end at hollow needle body, an end that affects bar that is arranged in the needle lumen is connected with interlock hole on the small needle knife by couple axle, it is become when affecting bar to drive small needle knife when its needle lumen moves do 90 ° of angular movements along its turning cylinder, the other end at hollow needle body is connected with the handgrip that has the pull bar sliding tray, affect bar to enter in the handgrip back and be positioned at the pull bar handgrip, affect the end spring interior of bar to be connected and make its spring affecting pressure of bar along its axle center with being arranged on handgrip by alignment pin.

Below with reference to accompanying drawing using method of the present utility model is described as follows:

Accompanying drawing is a structural representation of the present utility model.

In the accompanying drawings, (1) is handgrip, and (2) are hollow needle body, and (3) for affecting bar, (4) are couple axle, (5) be small needle knife, (6) are turning cylinder, and (7) are the pull bar sliding tray, and (8) are spring, (9) be the spring fixed screw, (10) are the pull bar handgrip, and (11) are alignment pin, and (12) are the rotation mouth.

With reference to the accompanying drawings, end at hollow needle body (2) is provided with rotation mouthful (12), end in rotation mouthful (12) is connected with small needle knife (5) by turning cylinder (6), an end that affects bar (3) that is arranged in hollow needle body (2) inner chamber is connected with small needle knife (5) by couple axle (4), it is become when affecting bar (3), can drive small needle knife (5) along 90 ° of angle back and forth movements of turning cylinder (6) work along hollow needle body (2) inner chamber back and forth movement, the other end at hollow needle body (2) is connected with the handgrip (1) that has pull bar sliding tray (7), affect bar (3) to enter that the back is positioned at by the pull bar handgrip (10) of alignment pin (11) in being arranged on pull bar sliding tray (7) in the handgrip (1), enter the end that affects bar (3) spring (8) interior in the handgrip (1) and be connected and make its spring (8) affecting (3) pressure of bar along its axle center be positioned at handgrip (1) by spring fixed screw (9).

When using this utility model operation, need not cut osculum, as long as with its vertical hand held in, be inserted into the position of required treatment as common needle point, spurring pull bar handgrip (10) then makes it move upward along pull bar sliding tray (7), at this moment affect bar (3) at pull bar handgrip (10) thus drive lower edge hollow needle intracoelomic cavity move upward drive little knife needle (5) along A shown in the accompanying drawing to moving, make blade and needle body be 90 ° of angles, spur whole needle body cutting diseased region then, after finishing, cutting decontrols pull bar handgrip (10), at this moment affect bar (3) rapid return under the elastic force effect of spring (8) to drive the small needle knife return simultaneously, take out and finish surgical tasks.

Can effectively realize task of the present utility model in sum, for providing a kind of, society in operation, need not cut osculum, and small needle knife can be sent into accurately cutting part, be enough to avoid operation to be accidentally injured, and have easy to use, flexible operation, be suitable for the medical small needle knife of universal novel adjustable.

Claims

1, a kind of adjustable medical small needle knife, comprise handgrip (1), hollow needle body (2), affect bar (3), couple axle (4), small needle knife (5), turning cylinder (6), pull bar sliding tray (7), spring (8), spring fixed screw (9), pull bar handgrip (10), alignment pin (11), rotation mouthful (12), it is characterized in that being provided with rotation mouthful (12) at an end of hollow needle body (2), end in rotation mouthful (12) is connected with small needle knife (5) by turning cylinder (6), an end that affects bar (3) that is arranged in hollow needle body (2) inner chamber is connected with small needle knife (5) by couple axle (4), it is become when affecting bar (3), can drive small needle knife (5) along 90 ° of angle back and forth movements of turning cylinder (6) work along hollow needle body (2) inner chamber back and forth movement, the other end at hollow needle body (2) is connected with the handgrip (1) that has pull bar sliding tray (7), affect bar (3) to enter that the back is positioned at by the pull bar handgrip (10) of alignment pin (11) in being arranged on pull bar sliding tray (7) in the handgrip (1), enter the end that affects bar (3) spring (8) interior in the handgrip (1) and be connected and make its spring (8) affecting (3) pressure of bar along its axle center be positioned at handgrip (1) by spring fixed screw (9).