RU178611U1 - Animal Retractor - Google Patents

Abstract

The utility model relates to veterinary medicine, in particular to veterinary surgery, and can be used when performing surgical operations on animals that require open access to internal organs and tissues. The essence of the utility model lies in the fact that for the breeding of the edges of the surgical wound, the retractor includes four hooks and two fixing tapes made of elastomer, which are connected to each other, in the central part, by a rectangular bar with the possibility of movement along the length to regulate the pressure on the edges of the surgical wound. At the working edges of the hooks, the elastomeric tapes are fixed with clamps. The device provides an increase in fixation properties and regulation of pressure on the edges of the surgical wound while reducing labor costs due to the release of the surgeon's hands. The atraumatic characteristics of the elastomer used in the manufacture of elastic tapes allow you to quickly and painlessly fix the device in the wound without causing pain in the animal, and ensure the safe operation of veterinary specialists.

Description

A utility model - a retractor - refers to veterinary medicine, in particular to veterinary surgery, and can be used when performing surgical operations on animals that require open access to internal organs and tissues.

In veterinary medicine and surgery, methods for expanding and fixing the edges of the surgical wound are known.

A surgical hook is known, which is a tool with a pointed or blunt end curved in the form of a hook on one side and a handle for holding the retractor in the hand on the other. The tool can have from 1 to 5 "teeth" of various lengths and shapes and can be used for many surgical interventions. Hooks are usually a paired tool. However, a prerequisite for its use is the participation in the operation of an assistant surgeon who is busy holding hooks to the edges of the surgical wound throughout the operation (Aesculap, general catalog, Ausgabe Edition 1991, p. 318-321, BT 221-288). In addition, the known device does not allow operations on animals in a standing position.

Known retractor for breeding soft tissues during operations on the limbs (USSR copyright certificate No. 102045, 1955). A feature of the retractor is the presence of bent protrusions at the ends of the hooks for their fixation on the limbs with the help of an elastic coupler - a rubber ring. In some cases, the device allows surgical interventions on the extremities, freeing the assistant’s hands, but the retractor does not regulate the tension depending on the length of the surgical wound, the volume of soft tissues, and the circumference of the limb. In addition, it is not clear how to sterilize an elastic coupler (rubber ring), the period of its use. Thus, this device is not universal.

Closest to the proposed model in technical essence is a retractor for operations on the limbs (patent for invention RU 2321362, published April 10, 2008. Bull. No. 10) containing two surgical hooks with teeth. The hooks are connected to each other. On the working parts of the hooks, parallel slots are made through which a rubber bundle passes. The harness has the ability to adjust the length from 10 to 60 cm. The device allows you to free the hands of an assistant. The known device is used in surgery, is intended only for operations on human limbs and is not applicable to farm animals. In addition, the use of rubber tow causes injury to the skin of animals.

The objective of the invention is the creation of a universal tool for reliable breeding and retention of the edges of the surgical wound, without using assistants, during various operations in any conditions of keeping animals.

The objective is achieved in that the retractor includes four surgical hooks with teeth containing slots through which two elastic bands of elastomer pass, interconnected, in the central part, by a rectangular bar. The bar contains 4 parallel slots and a perpendicular jumper in the middle, with the possibility of moving along the length. This allows you to adjust the pressure of the hooks on the edges of the wound, to prevent spontaneous loss of the device during surgery, to increase the reliability of fixation. To adjust the length of the elastomeric tape at the working edges of the hooks are fixed with clamps. The atraumatic properties of the device are determined by the characteristics of the elastomeric tapes, allowing it to be quickly and painlessly installed in the wound area.

The structure of the utility model is indicated in the drawing, in FIG. 1 shows a device prepared for operation; FIG. 2 device during operation. The device contains 4 wound hooks (1) with 4 teeth, containing on the working parts parallel fixing slots 25 mm long (2). To hold the retractor in the wound, the hooks are interconnected by two elastic bands of elastomer (3) 25 mm wide and 400-1500 mm long, which are passed through the fixing slots (2). Elastomeric tapes are fixed with clamps (4), with the possibility of adjusting the length and are interconnected by a rectangular bar (5) 65 mm long and 25 mm wide. The bar contains 4 parallel slots (6) 25 mm long and 5 mm wide and a jumper in the middle (7). The longitudinal movement of the strap allows you to adjust the pressure of the hooks on the edges of the surgical wound (8).

The principle of operation of the retractor is based on the traction of elastic bands.

The device is used as follows. After fixing the animal and processing the surgical field, the excision of soft tissues of the required length and width is performed. Elastic tapes are brought under the operated area in the form of a ring. The hooks of the retractor are located in the corners of the surgical wound (Fig. 2). The length of the elastic bands of the retractor is adjusted by moving them through the fixing slots of the wound hooks, so that the hooks stretch the edges of the surgical wound (8) to the required width, which depends on the tension of the elastic bands. Then the ends of the elastic bands are securely fastened with clamps. By moving the rectangular bar, the pressure of the wound hooks on the edges of the surgical wound is regulated, depending on the shape and length of the incision. If necessary, during the operation, the bar can be shifted towards one of the edges of the wound, increasing pressure on it, while weakening the pressure on the opposite edge of the wound. The atraumatic properties of the device are determined by the characteristics of the elastomeric tapes, allowing it to be quickly and painlessly installed in the wound area. At the end of the operation, the retractor is removed and sterilized chemically or by boiling.

The technical result from the use of a retractor is as follows: an increase in fixation properties and regulation of pressure on the edges of the surgical wound while reducing labor costs due to the release of the surgeon's hands. The atraumatic characteristics of the elastomer used in the manufacture of elastic tapes allow you to quickly and painlessly fix the device in the wound without causing pain in the animal, and ensure the safe operation of veterinary specialists. The device was developed taking into account the physiological and behavioral characteristics of cattle and small cattle, horses, dogs and cats. The device is compact, economical, reliable in operation and can be used in a veterinary clinic, livestock complex and field conditions.

Claims (2)

1. A retractor, consisting of surgical hooks with teeth containing slots, and connected to each other by elastic bands with the possibility of adjusting the length, characterized in that for the separation of the edges of the surgical wound includes four hooks and two fixing tapes made of elastomer, which for regulating the pressure on the edges of the surgical wound are interconnected, in the central part, by a rectangular bar with the possibility of movement along the length. 2. The retractor according to claim 1, characterized in that for regulating the length of the elastomeric tape at the working edges of the hooks are fixed with clamps.

Images