RU121151U1 - DEVICE FOR CRYOSURGICAL APPLICATIONS - Google Patents

Abstract

A device for cryosurgical applications, containing a thermostatic glass with a pouch on one side and a slide lid on the other side, the lid being fixed movably on the stem of the glass, and the pouch is equipped with a purse string tie in the form of two closed and oppositely directed threads located in the edging of the free edge of the pouch.

Description

The utility model relates to veterinary medicine, namely to veterinary surgery, in particular to devices for cryosurgery and can be used in the practice of veterinary cryosurgery. The most effective application of the utility model for cryogenic elimination of soft tissue skin tumors.

Known equipment for cryosurgery: cryosurgical units, CRY-AS cryo-weapons, cryoprobes, etc. (Jackson Arthur D. Manual of cryosurgery for general practitioners / Attending physician. - 1999. - No. 6. - P.61 - [1]).

However, the known methods of cryosurgery are distinguished by expensive equipment that is not available to all veterinary clinics. This equipment is provided only to those medical institutions that specialize in this area.

There is also a known method of cryosurgery, in which cryoapplicators are selected individually, in accordance with the shape and size of the neoplasm. On the skin, the borders of the planned freezing zone are marked with dye. As a rule, they carry out three cycles of freezing and thawing (Kungurtsev S.V., Kulakov D.V. experience in applying cryosurgical treatment methods for head and neck tumors // Deputy Chief Physician. - 2009. No. 6. - P.88 - prototype - [2]).

The main disadvantage of this method is that it is performed manually. However, with direct exposure to the skin with a swab dipped in liquid nitrogen (cryosurgical applications), ultralow temperatures ensuring adequate destruction of neoplasms are not achieved. This cannot give a deep freezing of the growth zone of the neoplasm and, consequently, a radical therapeutic effect. The disadvantage of this method also lies in its invasiveness and non-cosmetic, since damage to the surrounding tissues is not excluded. With inaccurate and incomplete cryotherapy, relapses are possible. After treatment with this method, a keloid scar is often formed. This as a whole can reduce the effectiveness of treatment, and also places animals in unequal conditions during experimental studies.

The objective of the proposed solution is to eliminate the above disadvantages and increase the efficiency of cryosurgical operations by using the device for cryosurgical applications.

The task is achieved due to the fact that when applying applications for cryosurgery, including direct exposure to the skin with a swab dipped in liquid nitrogen, according to the utility model, when applying applications, use a thermo-glass made with a bag on one side and a retractable lid on the other, with the lid fixed movably on the stem of the glass, and the bag is equipped with a purse string coupler in the form of two closed and oppositely directed threads located in the edging of the free edge of the bag.

The technical essence of the proposed solution is presented in the drawing, where:

figure 1 - the proposed device for cryosurgical applications (General view);

figure 2 - the proposed device for cryosurgical applications in the working position.

The device for cryosurgical applications contains a thermo-glass 1 with a bag 2 on one side and a sliding cover 3 on the other hand, while the cover 3 is mounted movably on the rod 4 of the thermo-glass 1, and the free edge of the bag 2 is equipped with two closed and oppositely directed threads 5 located in the edging 6 free edge of the bag 2.

The device for cryosurgical applications works as follows:

The area of application of cryosurgical applications is cut out if the tumors proposed for removal are not devoid of coat and treated with 70% alcohol. Under the base of the neoplasm, an infiltration 0.5% solution of novocaine is introduced in a volume of 1-2 ml, depending on the size of the neoplasm. The animal is placed on the operating table sideways, free from neoplasms. Available for manipulation of the neoplasm impose the proposed device for cryosurgical applications with the side of the bag. Thus, the neoplasm is located inside the thermo-glass 1 of the device for cryosurgical applications. Then tighten the threads 5 in the edging 6, while pulling the neoplasm at the base from surrounding healthy tissues. The direction of tightening with threads 5 of the free edge of the bag 2 is shown by white arrows.

The neoplasm is encircled with gauze swabs, which are wetted with liquid nitrogen taken from a Dewar vessel, and the lid 3 is closed by turning it on the rod 4 (the direction of application of force is shown by a black arrow). Thus, the thermo-glass 1 of the device for cryosurgical applications is closed. This prevents the evaporation of nitrogen from the device and compliance with the temperature regime during cryodestruction of the neoplasm during the session.

After 5 seconds, the fixing ability of the threads 5 is loosened and the device for cryosurgical applications is removed from the neoplasm together with gauze tampons moistened with liquid nitrogen. The removal of gauze swabs is facilitated by the edging 6 of the free edge of the bag 2 even with a complete relaxation of the fixing ability of the threads 5.

After removal of cryosurgical applications, a sterile bandage dressing is applied to the treated neoplasm. A cryosurgery session was performed after 5 days, a total of 3 sessions were performed.

In multiple trials, cryosurgical applications were superimposed in precisely targeted areas of the neoplasm. The limitation of the application area excluded damage to healthy tissues and did not lengthen the time for performing the cryosurgery procedure.

Using the proposed utility model reduces the cost of equipping operating units of veterinary clinics, in contrast to the well-known specialized equipment for cryosurgery.

Using the proposed utility model provides the following advantages:

- the implementation of microcryodestruction with precise damage to the growth zone of the neoplasm;

- treatment without violating the integrity of healthy tissues surrounding the neoplasm;

- reduction in morbidity;

- providing a positive cosmetic effect, with the absence of an extensive scar and with the restoration of a specific epithelium;

- ensuring the absence of relapse.

These advantages significantly increase the effectiveness of animal therapy. Using the proposed utility model is more efficient and can reduce treatment time by 4-5 days, as can be seen from the table.

Table Cryosurgical applications The number of treated animals Healthy tissue damage Tissue regeneration after cryosurgery (day) Proposed 16 - at 6-7 Famous 16 6 at 10-13

The proposed utility model has been successfully applied in the treatment of dogs and cats with neoplasms on the basis of the veterinary diagnostic center FGBOU VPO Orlovsky GAU and the veterinary clinic Vita (Voronezh).

Claims (1)

A device for cryosurgical applications containing a thermo-glass with a bag on one side and a retractable lid on the other hand, while the lid is mounted movably on the glass rod, and the bag is equipped with a purse string in the form of two closed and oppositely directed threads located in the edging of the free edge of the bag.