RU204722U1 - Scalpel with finger support - Google Patents

Abstract

The utility model relates to medicine, namely to devices used in surgery. A scalpel with a support platform for a finger is proposed, consisting of a blade and a handle, fixedly connected, while at the transition of the blade to the handle on the contralateral side of the blade sharpening area, an oval-shaped recess with a depth of 6 mm is made, while in the distal half of the recess there is an increase in the thickness of the material blades 3 mm in each side and on the surface of the recess there is a double oblique notch 0.5 mm deep with a step of 1 mm. 1 ill.

Description

Technical field to which the utility model belongs

The utility model relates to medicine, namely to devices used in surgery.

State of the art.

During surgical operations, the surgeon often faces the need to dissect fascia, adhesions and aponeuroses, which are thin dense formations of multidirectional fibers of connective tissue. In this case, it is important to accurately position the scalpel blade and prevent it from slipping out of the surgeon's hand.

There is a known method of holding the scalpel in the "table knife" position, which differs from the first in that the index finger, in order to better fix the scalpel in the hand, is placed on its dorsal surface (Kovanov VV et al. Operative surgery and topographic anatomy. M .: Medicine, 1995. - p. 208, fig. 127)

Known "Scalpel" [RF patent for utility model No. 190849 dated 07/15/2019]. This scalpel contains a blade made of high-alloy steel with a pointed projection, a sharpened side edge, an obshkom and a leg fixed on the handle of the instrument with flat lateral surfaces, at the end of its distal side, characterized in that the handle is made of electret with an electric potential, which ensures reliable electrostatic adhesion between with a scalpel handle and a surgeon's brush, while the polarization planes of electric charges of the opposite sign (+ -) in the electret run parallel to the plane of the side surfaces of the handle. The technical result of the utility model is expressed in the elimination of sliding of the medical glove, in which the surgeon's hand is worn, relative to the instrument handle. It is achieved by the fact that in a scalpel containing a blade made of high-alloy steel with a pointed projection, a sharpened side edge, an butt and a leg fixed to the handle of the instrument with flat lateral surfaces, at the end of its distal side, the handle is made of electret with an electric potential of 15-20 kV, and the planes of polarization of electric charges of opposite sign (+ -) in the electret run parallel to the plane of the side surfaces of the handle.

However, this scalpel has the following disadvantages:

difficult to manufacture;

requires connection to a power source,

difficult to sterilize (calcination in a dry-heat oven or the use of autoclaving is excluded),

there is no way to quickly release the hand from the scalpel in case of massive bleeding.

As a prototype used "Scalpel for incision of the skin and subcutaneous muscles in cattle" [RF patent for useful model No. 183477 dated 13.10.2017]. This device is a scalpel containing a handle connected to the cutting edge, characterized in that the cutting edge is made in the form of a flat figure - an isosceles triangle with a side-to-base ratio of 3: 1, which is separated from the handle by a shoulder whose area exceeds the area of the base isosceles triangle. Placing the index finger on the collar can provide precise blade positioning and reduce the risk of the index finger slipping off

However, the use of this device during a surgical operation is associated with a number of inconveniences:

1. The triangular shape of the blade does not allow using the scalpel for making precise cuts deep in the wound.

2. The presence of a collar makes it difficult to see the wound and manipulate in the depth of the wound, especially in obese patients.

3. The scalpel has an unusual shape and sharpening for surgery.

Disclosure of a utility model

The authors suggest

A scalpel with a support platform for a finger, consisting of a blade (Fig. 1, position 2) and a handle (Fig. 1, position 5), fixedly connected, characterized in that at the transition of the blade to the handle on the contralateral side from the sharpening area of the blade ( Fig. 1, position 1) made a recess (Fig. 1, position 4) of an oval shape with a depth of 6 mm, while in the distal half of the recess (Fig. 1, position 3) there is an increase in the thickness of the blade material by 3 mm in each direction and on the surface of the recess has a double oblique notch with a depth of 0.5 mm with a step of 1 mm.

The device we offer has a number of advantages:

1. Convenience of positioning the sharpened area of the scalpel is due to the appearance of a support platform for the surgeon's index finger.

2. Reducing the risk of the surgeon's index finger slipping off the scalpel by increasing the thickness of the blade material by 3 mm on each side in the distal half of the notch.

3. Reducing the risk of the surgeon's index finger slipping off the scalpel due to the application of a double oblique notch with a depth of 0.5 mm on the surface of the notch with a step of 1 mm.

4. The scalpel has a simple shape without deep grooves and cavities, which makes it easy to sterilize in a hospital setting.

The technical result of using the proposed device is the precise positioning of the sharpening area of the scalpel blade and the possibility of applying the guiding force of the surgeon's index finger during the incision without the risk of the finger slipping off the scalpel.

To characterize the utility model, the following features of the device are used, in particular:

at the point of transition of the blade into the handle, on the contralateral side from the sharpening area of the blade, an oval recess with a depth of 6 mm is made;

in the distal half of the recess there is an increase in the thickness of the blade material by 3 mm in each direction;

a double oblique notch with a depth of 0.5 mm with a step of 1 mm is applied on the surface of the recess.

Brief Description of Drawings

FIG. 1 shows a diagram of the proposed device:

position A - sectional device at the point of transition of the blade to the handle;

position B - device side view;

position 1 - the area of sharpening the scalpel blade;

position 2 - scalpel blade;

position 3 - a section of increased blade thickness, with a double oblique notch, in the region of the recess;

position 4 - notch;

position 5 - scalpel handle.

Implementation of the utility model

Example # 1

The claimed device can be applied as follows:

the device is sterilized in the manner accepted in this medical institution;

the scalpel is taken in the hand, with the index finger resting on the recess (Fig. 1, position 4) and rests in the area of the blade thickening (Fig. 1, position 3);

in the operating room, a layer-by-layer incision of the skin and subcutaneous fat is made;

when dissecting the connective tissue structure (aponeurosis, fascia, ligament or connective tissue cord), the sharpened part of the blade is precisely positioned due to the appearance of the guiding force of the surgeon's index finger holding the scalpel.

Claims (1)

A scalpel with a support platform for a finger, consisting of a blade and a handle fixedly connected, characterized in that at the transition of the blade to the handle on the contralateral side of the blade sharpening area, an oval notch with a depth of 6 mm is made, while in the distal half of the notch there is an increase in thickness blade material 3 mm in each side and a double oblique notch with a depth of 0.5 mm with a step of 1 mm is applied to the surface of the groove.

Images