CN213312992U

CN213312992U - External flexible fixing device of applicator

Info

Publication number: CN213312992U
Application number: CN202021748047.3U
Authority: CN
Inventors: 郦瑜; 严森祥
Original assignee: First Affiliated Hospital of Zhejiang University School of Medicine
Current assignee: First Affiliated Hospital of Zhejiang University School of Medicine
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-06-01
Anticipated expiration: 2030-08-20

Abstract

The utility model discloses an external flexible fixing device of source applicator belongs to the external fixed field of source applicator, which comprises a base plate, be equipped with the adjustment tank on the base plate, base plate upside middle part is equipped with fixed buckle, be equipped with the double-screw bolt on the movable plate, the double-screw bolt passes the adjustment tank, be equipped with lock nut on the double-screw bolt, the upper end of movable plate is equipped with rotatory buckle, rotatory buckle sets up the both sides at fixed buckle, be equipped with the T-shaped groove of belt on the base plate, the symmetry is equipped with two T-shaped foraminiferous holes on the base plate. The utility model discloses with external source applicator one end fixed mutually with patient's health, ensure moving to shift and for a long time the state of crouching, the position of source applicator remains unchanged, can alleviate the stiff uncomfortable sense of the health that the patient arouses for a long time crouching. The buckle adopts an elastic bayonet, so that the in-out position of the applicator is ensured to be unchanged; the movable plate has a fixing function on the distance and the angle of the applicators from the transverse direction, thereby ensuring the treatment accuracy.

Description

External flexible fixing device of applicator

Technical Field

The utility model relates to a source applicator external fixation field, concretely relates to source applicator external flexible fixing device.

Background

Radiotherapy is one of the important means for treating gynecological tumors, and comprises two means of external radiotherapy and after-loading therapy (internal radiotherapy). Wherein the postradiation treatment can be applied to tumor tissues at a close distance and a high dose, so that the radiation treatment acting position is particularly required to be accurately controlled. Clinically, one end of the applicator is inserted into the uterine cavity of a patient, and the other end of the applicator is fixed on a treatment bed, so that the position of the applicator in the uterine cavity is prevented from changing, and the accuracy of afterloading treatment is further ensured. However, the outer end of the applicator is rigidly fixed to the treatment couch and is not fixed to the position of the applicator free in the uterine cavity, which is susceptible to various factors such as examination, patient handling, tension, pain, discomfort, sneezing, etc. Because the length of the applicator reaches 30cm, the position and angle change amplitude of the applicator in the uterine cavity is large due to the lever principle, if the applicator with the rigid fixed outer end generates millimeter-scale displacement, the applicator with the inner side dissociated in the uterine cavity can generate centimeter-scale displacement. The deviation of the position and angle of the applicator in the uterine cavity will cause the actual dose distribution to be inconsistent with the planned dose distribution, thereby affecting the therapeutic effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an external flexible fixing device of a source applicator.

The technical scheme of the utility model as follows: the utility model provides an external flexible fixing device of applicator, includes the base plate, the movable plate, lock nut, rotatory buckle and fixed buckle, be equipped with the adjustment tank on the base plate, base plate upside middle part is equipped with fixed buckle, be equipped with the double-screw bolt on the movable plate, the double-screw bolt passes the adjustment tank, be equipped with lock nut on the double-screw bolt, the upper end of movable plate is equipped with rotatory buckle, rotatory buckle sets up the both sides at fixed buckle.

The base plate is provided with a T-shaped belt groove which is positioned below the adjusting groove.

Two T-shaped hole holes are symmetrically formed in the base plate and are respectively located on two sides of the adjusting groove.

The fixing buckle and the base plate are of an integrated structure.

The upper end of the movable plate is provided with an inserting hole, and a rotary buckle is inserted in the inserting hole.

The thickness of the substrate is 5 mm.

The utility model discloses with external source applicator one end fixed mutually with patient's health, ensure moving to shift and for a long time the state of crouching, the position of source applicator remains unchanged, can alleviate the stiff uncomfortable sense of the health that the patient arouses for a long time crouching. An elastic bayonet is adopted, so that the in-and-out position of the applicator is ensured to be unchanged; the moving plate has a fixed function on the distance and the angle of the applicators from the transverse direction. The fixation of the angle and depth of the applicator outside the body is further enhanced from two aspects, thereby ensuring the accuracy of the treatment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

FIG. 3 is a schematic structural view of the moving plate and the rotating buckle;

FIG. 4 is a schematic view of a T-belt configuration;

FIG. 5 is a schematic view of the present invention secured to a T-belt;

in the figure: the novel clamp comprises a base plate 1, an adjusting groove 2, a moving plate 3, a stud 4, a locking nut 5, a rotating buckle 6, a fixing buckle 7, a T-shaped belt hole 8, a T-shaped belt groove 9, a T-shaped belt 10 and an inserting hole 11.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-3, the external flexible fixing device of the applicator comprises a base plate 1, a moving plate 3, a stud 4, a lock nut 5, a rotary buckle 6 and a fixed buckle 7, wherein the thickness of the base plate 1 is 5 mm. Be equipped with adjustment tank 2 on the base plate 1, 1 upside middle part of base plate is equipped with fixed buckle 7, rotatory buckle 6 sets up the both sides at fixed buckle 7, fixed buckle 7 and 1 formula structure as an organic whole of base plate. The movable plate is characterized in that a stud 4 is arranged on the movable plate 3, the stud 4 penetrates through the adjusting groove 2, a locking nut 5 is arranged on the stud 4, an inserting hole 11 is formed in the upper end of the movable plate 3, and a rotary buckle 6 is inserted in the inserting hole 11. The rotating buckle 6 and the fixed buckle 7 are flexible buckles. Be equipped with T trough of belt 9 on the base plate 1, T trough of belt 9 is located the below of adjustment tank 2. Two T-shaped hole holes 8 are symmetrically formed in the base plate 1, and the two T-shaped hole holes 8 are located on two sides of the adjusting groove 2.

As shown in fig. 4-5, in use, three base plates of the t-shaped belt 10 respectively pass through the t-shaped belt hole 8 and the t-shaped belt groove 9, the t-shaped belt 10 is then threaded on the body of a patient, the central tube of the applicator is fixed on the fixed buckle 7, two side tubes of the applicator are respectively fixed on the two rotary buckles 6, the locking nut 5 is screwed when the moving plate 3 is in a proper position and the rotary buckles 6 are in a proper angle, the moving plate 3 and the base plate 1 can be extruded when the locking nut is screwed, the inserting hole 11 on the moving plate 3 is deformed, and the rotary buckles 6 are fixed, so that the distance and the angle of the side tubes of the applicator are fixed.

The utility model is flexibly fixed on the body of the patient through the T-shaped belt 10, when the patient is moved, the relative position of the source applicator and the patient can not be changed, and the patient can not feel pain; the fixed buckle 6 and the rotary buckle 7 are elastic buckles, so that the in-out position of the applicator is ensured to be unchanged; the movable plate 3 has a fixing function on the distance and the angle of the applicators from the transverse direction, and further strengthens the fixation of the angles and the depths of the applicators outside the body from two aspects, thereby ensuring the precision of treatment.

Claims

1. The utility model provides an external flexible fixing device of applicator, includes base plate (1), movable plate (3), lock nut (5), rotatory buckle (6) and fixed buckle (7), its characterized in that: be equipped with adjustment tank (2) on base plate (1), base plate (1) upside middle part is equipped with fixed buckle (7), be equipped with double-screw bolt (4) on movable plate (3), adjustment tank (2) are passed in double-screw bolt (4), be equipped with lock nut (5) on double-screw bolt (4), the upper end of movable plate (3) is equipped with rotatory buckle (6), rotatory buckle (6) set up the both sides at fixed buckle (7).

2. The applicator body external flexible fixation device of claim 1, wherein: be equipped with T trough of belt (9) on base plate (1), T trough of belt (9) are located the below of adjusting groove (2).

3. The applicator body external flexible fixation device of claim 1, wherein: two T-shaped hole holes (8) are symmetrically formed in the base plate (1), and the two T-shaped hole holes (8) are located on two sides of the adjusting groove (2).

4. The applicator body external flexible fixation device of claim 1, wherein: the fixing buckle (7) and the base plate (1) are of an integrated structure.

5. The applicator body external flexible fixation device of claim 1, wherein: the upper end of the moving plate (3) is provided with an inserting hole (11), and a rotary buckle (6) is inserted in the inserting hole (11).

6. The applicator body external flexible fixation device of claim 1, wherein: the thickness of the substrate (1) is 5 mm.