CN202553995U

CN202553995U - Elastic-pressing rotation type skin annular trephine

Info

Publication number: CN202553995U
Application number: CN201220174988XU
Authority: CN
Inventors: 刘杰
Original assignee: 刘杰
Priority date: 2012-04-11
Filing date: 2012-04-11
Publication date: 2012-11-28
Anticipated expiration: 2022-04-11

Abstract

The utility model provides a skin tissue histopathology sample collecting tool, particularly relates to an elastic-pressing rotation type skin annular trephine, and belongs to the technical field of the medical apparatus. The skin annular trephine comprises a pressing handle, an outer sleeve, a pressure spring, a center rotation rod, an outer skein, a release button, a ringing cutter head, a depth-adjustable sleeve, a cap nut and a horizontal axle. The elastic-pressing rotation type skin annular trephine uses an elastic-pressing rotation way to feed the trephine, the wave-shaped blade and a depth scale ruler on the outer sleeve make the feeding process instantly accomplished in the surgery process, moreover the depth is adjustable, the operation time is greatly shortened and the pain of patients is reduced. The structure is reasonably designed, the operation stability is increased, and the operation process is convenient; and the elastic-pressing rotation type skin annular trephine is suitable for clinical popularization and application.

Description

Suppress rotary skin trepan

Technical field

This utility model belongs to medical instruments field, particularly relates to a kind of skin histopathology sample collection instrument---suppress rotary skin trepan.

Background technology

At present, along with the raising of economic development and living standards of the people, people more and more pay attention to the health requirements of self skin.There is important value in skin histopathology to dermopathic diagnosis, simultaneously, to the generation of understanding disease, develop, lapse to, body general body state and all significant to the selection of Therapeutic Method.Seek out and be worth higher pathology picture, regular BIAO and BEN must be arranged.At present, the method for dermatological specimens collection has three kinds: operation cuts method, trepan method and cuts method.Wherein, it is directly the skin of morbidity to be cut down and directly obtains sample with scalpel with the method that cuts that operation cuts method, because of wound big, hemorrhage many, operative scar is bigger, in clinical practice, be restricted.The trepan method generally adopts at various big hospital at present, is specially adapted to less early stage skin lesion or is confined to show shallow place or operation cuts difficult person.Corneal trephine is that department of dermatologry is got one of the most frequently used instrument of pathology sample, and this trepan front end has circular cutter, after trepan is got into patient's subcutaneous tissue, takes off trepan, clamps sample with tweezers, cuts sample with knife or shears at fat deposit.The weak point of this trepan is: do not have scale on the Ring-shape cutter, makes the degree of depth of drawing materials wayward, and not enough like the degree of depth, can cause the failure of drawing materials; The mode of spiral entering skin is by hand taked in drilling through of operation trepan, and greatly random, accuracy is not enough.

Summary of the invention

This utility model technical problem to be solved is: overcome the deficiency of prior art, a kind of simple in structure, easy to operate rotary skin trepan that suppresses is provided.

This utility model solves its technical problem and realizes through following technical scheme:

A kind ofly suppress rotary skin trepan; Comprise and push handle, outer sleeve, compression spring, center swingle, outer cuff, release-push, girdling cutter head, depth adjustment sleeve, cap nut and transverse axis; It is characterized in that: said depth adjustment sleeve is screwed on the outer sleeve lower end, and outer cuff is packed in the outer sleeve middle part, and release-push places between outer cuff and the outer sleeve; Push handle through the cap nut removable mounting at the center swingle upper end; The girdling cutter head is screwed on swingle lower end, center, is set with compression spring and cap nut on the swingle of center and is installed in the outer sleeve, and the outer sleeve upper end is equipped with the spiral fluted transverse axis that passes on the swingle of center; Cap nut is screwed on the outer sleeve upper end, deviates to prevent transverse axis.

And the said handle upper end of pushing is a bulb-type, and the lower end is cylindrical, and cylindrical portion is arranged with external screw thread, and cylindrical tip is provided with a conical counterbore.

And said center swingle is a cylinder, and the center swingle is screwed on together by two parts up and down; The top symmetric position has the helicla flute isometric with the depth adjustment sleeve, top system one cone, and the bottom is shaped on an elasticity bayonet lock; The top is provided with a circular counter bore, and the counterbore inwall has tap.

And said outer cuff is a circular hollow inner chamber shape, system one square opening on it.

And said release-push is that square is prismatic, and the edge, middle part is shaped on prevents deviating from projection.

And said girdling cutter head is the cylindrical shape stalloy, and an end is fixed with and is provided with externally threaded cylindrical knife shank; Be provided with an air-vent near the handle of a knife place; Other end lateral surface is perpendicular to the plane at blade place, and the angle between medial surface and the lateral surface is 2～3 degree, and blade is a waveform.

Advantage of this utility model and beneficial effect are:

Originally suppress rotary skin trepan employing and suppress the rotation mode feed, the waveform blade is provided with the deep calibration chi on the outer sleeve, makes operation moment completion feed, and depth controlled, has shortened the time greatly, has reduced less patient suffering.This utility model reasonable in design has increased the stability of operating, and operating process is simple and convenient, is suitable for clinical application.

Description of drawings

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

Fig. 2 is the spiral fluted deployed condition sketch map of this utility model.

Fig. 3 is the outer sleeve front view of this utility model.

The specific embodiment

Through specific embodiment this utility model is done further to detail below, following examples are descriptive, are not determinate, can not limit the protection domain of this utility model with this.

A kind ofly suppress rotary skin trepan; Comprise and push handle 1, outer sleeve 2, compression spring 3, center swingle 4, outer cuff 5, release-push 6, girdling cutter head 7, depth adjustment sleeve 8,

cap nut

10,13 and transverse axis 11; It is characterized in that: said depth adjustment sleeve 8 is screwed on outer sleeve 2 lower ends, and outer cuff 5 is packed in outer sleeve 2 middle parts, and release-push 6 places between outer cuff 5 and the outer sleeve 2; Push handle 1 through cap nut 13 removable mountings at the center swingle 4 upper ends; Girdling cutter head 7 is screwed on center swingle 4 lower ends, is set with compression spring 3 on the center swingle 4 and is installed in the outer sleeve 2 with cap nut 10, and outer sleeve 2 upper ends are equipped with the transverse axis 11 of the helicla flute 12 that passes on the center swingle 4; Cap nut 10 is screwed on outer sleeve 2 upper ends, deviates to prevent transverse axis 11.Said to push handle 1 upper end be bulb-type, and the lower end is cylindrical, and cylindrical portion is arranged with external screw thread, and cylindrical tip is provided with a conical counterbore.Said center swingle 4 is a cylinder, and center swingle 4 is screwed on together by two parts up and down, and the top symmetric position has the helicla flute 12 isometric with depth adjustment sleeve 8; Top system one cone; The bottom is shaped on an elasticity bayonet lock 9, and the top is provided with a circular counter bore, and the counterbore inwall has tap.Said outer cuff 5 is circular hollow inner chamber shapes, system one square opening on it.Said release-push 6 is that square is prismatic, and the edge, middle part is shaped on prevents deviating from projection.Said girdling cutter head 7 is the cylindrical shape stalloy; One end is fixed with and is provided with externally threaded cylindrical knife shank, is provided with an air-vent near the handle of a knife place, and other end lateral surface is perpendicular to the plane at blade place; Angle between medial surface and the lateral surface is 2～3 degree, and blade is a waveform.

Claims

1. one kind is suppressed rotary skin trepan; Comprise and push handle, outer sleeve, compression spring, center swingle, outer cuff, release-push, girdling cutter head, depth adjustment sleeve, cap nut and transverse axis; It is characterized in that: said depth adjustment sleeve is screwed on the outer sleeve lower end, and outer cuff is packed in the outer sleeve middle part, and release-push places between outer cuff and the outer sleeve; Push handle through the cap nut removable mounting at the center swingle upper end; The girdling cutter head is screwed on swingle lower end, center, is set with compression spring and cap nut on the swingle of center and is installed in the outer sleeve, and the outer sleeve upper end is equipped with the spiral fluted transverse axis that passes on the swingle of center; Cap nut is screwed on the outer sleeve upper end, deviates to prevent transverse axis.

2. a kind of rotary skin trepan that suppresses according to claim 1 is characterized in that: the said handle upper end of pushing is a bulb-type, and the lower end is cylindrical, and cylindrical portion is arranged with external screw thread, and cylindrical tip is provided with a conical counterbore.

3. a kind of rotary skin trepan that suppresses according to claim 1; It is characterized in that: said center swingle is a cylinder, and the center swingle is screwed on together by two parts up and down, and the top symmetric position has the helicla flute isometric with the depth adjustment sleeve; Top system one cone; The bottom is shaped on an elasticity bayonet lock, and the top is provided with a circular counter bore, and the counterbore inwall has tap.

4. a kind of rotary skin trepan that suppresses according to claim 1, it is characterized in that: said outer cuff is a circular hollow inner chamber shape, system one square opening on it.

5. a kind of rotary skin trepan that suppresses according to claim 1 is characterized in that: said release-push is prismatic for square, and the edge, middle part is shaped on prevents deviating from projection.

6. a kind of rotary skin trepan that suppresses according to claim 1; It is characterized in that: said girdling cutter head is the cylindrical shape stalloy; One end is fixed with and is provided with externally threaded cylindrical knife shank, is provided with an air-vent near the handle of a knife place, and other end lateral surface is perpendicular to the plane at blade place; Angle between medial surface and the lateral surface is 2～3 degree, and blade is a waveform.

7. a kind of rotary skin trepan that suppresses according to claim 1 is characterized in that: said Ring-shape cutter divides No. 2, No. 4, No. 6, No. 8 four kinds of Ring-shape cutters selective according to Ring-shape cutter blade diameter.