RU223292U1 - Hoof knife with elements of a pattern tester template - Google Patents

Abstract

The utility model relates to the field of veterinary medicine, in particular to veterinary instruments for carrying out functional and therapeutic and orthopedic treatments of the third phalanx of the distal limbs of single-hoofed and artiodactyl animals. The set contains two knives. Each knife consists of a handle and a blade. The butt of the blade is located at an angle of 10° relative to the blade, has a sawtooth cutting edge for 2/3 of its length, and is made in the form of a false blade for 1/3. The top of the blade turns into a hook-hook, deflected to the left side for one knife and to the right side for the other. At the base of the blade there is a mark, forming an angle of 50° between the handle and the blade, located on the same straight line with the handle, made of two plates. The thickness of the plates corresponds to the thickness of the sole of a cattle claw and is 5 mm. The end of the handle is beveled at an angle of 45°, and its lower part is made with a finger groove. The sawtooth cutting edge on both sides is made according to the serrated sharpening type. The length of the sawtooth cutting edge is equal to the standard value of the front wall of the claw and is 80 mm. The useful model allows you to effectively carry out functional and therapeutic-orthopedic treatment of animals' hooves, as well as perform mandatory measurements before carrying out work in accordance with the anatomical and morphological structure of cattle hooves in case of pathological changes in the claw horn.

Description

The utility model relates to the field of veterinary medicine, in particular to veterinary instruments for carrying out functional and therapeutic and orthopedic treatments of the third phalanx of the distal limbs of one-toed (hooves) and artiodactyl (hooves) animals.

A known hoof knife [RU 115649 U1, A61D 1/00, 05/10/2012, Bull. No. 13], which has a handle in the shape of a cylinder, with the blade located on the end side. The blade is rigidly fixed to the end side of the handle, which has a truncated isosceles trapezoid having a bent upper part, as well as an acute angle of the plane of formation of the trapezoid with a continuation of the geometric axis of the handle.

The disadvantage of the useful model is the presence of a cylinder-shaped handle, which does not allow determining the evenness of the plane of the sole of the hooves, as well as the not very ergonomic shape of the handle, because Constant contact with a damp environment (urine, blood, etc.) reduces the functionality of working with this form. It should also be noted that there is a cutting surface in the inner surface of the hook, which increases the risk of injury to the hand during work. The use of this hoof knife during long-term processing of animal hooves creates unnecessary stress on the specialist’s hand due to low ergonomics, which leads to a less effective result.

A known hoof knife with replaceable blades [RU 2622709 C1, A01L 15/00, 06/19/2017, Bull. No. 17], consisting of a handle and a blade, and an L-shaped groove is made on the handle of the knife, in which an L-shaped flat hook is installed by means of a cylindrical hinge, with the ability to rotate and install the latter at an angle of 90° from the horizontal axis of the handle. The top of the flat hook is rounded and directed perpendicularly in the opposite direction to the cutting surface of the blade.

The disadvantage of the invention is also the low ergonomics of the handle and the lack of the necessary balance of the knife itself, as well as the presence on it of additional devices with mechanical functions and in an aggressive working environment, when working with it, problems with its functionality and safety may arise.

A hoof knife with replaceable blades is known [RU 186536 U1, A61D 1/00, A01L 15/00, 01/23/2019 Bull. No. 3], consisting of a blade, a handle, an L-shaped groove is made in the handle of the knife, in which an L-shaped flat hook is hingedly installed, with the ability to rotate and fix the latter at an angle of 90° from the horizontal axis of the handle, while the inner surface of the hook has a cutting surface, and the top of the hook is rounded and directed towards the cutting surface of the knife blade.

The disadvantage of the utility model is the complex design solution and the absence of finger stops, which increases the risk of injury when working with a knife of this design, as well as the need for additional tools to perform hoof processing work.

A hoof knife is also known [RU 201103 U1, A61D 1/00, A01L 15/00, 11/26/2020 Bull. No. 33], consisting of a blade, a handle, an L-shaped groove is made in the handle of the knife, in which an L-shaped flat hook is hingedly installed, with the possibility of rotating and fixing the latter at an angle of 90° from the horizontal axis of the handle, while the inner surface of the hook has a cutting surface, and the top of the hook is rounded and directed towards the cutting surface of the knife blade.

The disadvantage of this useful model is also the unsafe handle when performing processing work in combination with the necessary condition for the presence of additional veterinary instruments, as well as the low efficiency of working with an L-shaped flat hook.

A hoof knife is also known [Burdenyuk A.F. Veterinary orthopedics / A.F. Burdenyuk, G.S. Kuznetsov. - L.: Kolos, 1976. - 200 p.], having a curved sharp blade for right-handed and left-handed work. The blade can have both single-sided and double-sided sharpening.

The disadvantage of the device is limited functionality and low efficiency. This hoof knife is intended for direct processing of animal hooves or hooves only. Additional tools are required to perform an expanded range of hoof processing tasks.

The state of the art has not identified a technical solution that simultaneously contains structural elements of a hoof knife and a pattern tester template.

The technical result of the utility model is the development of a device that combines the functions of a direct cutting tool and additional metric devices that act as an auxiliary tool for the effective implementation of functional and therapeutic and orthopedic treatment of hooves in animals, as well as performing mandatory measurements before carrying out work in accordance with the anatomical and morphological structure cattle hooves in case of pathological changes in the claw horn.

To achieve a technical result, a set of hoof knives with elements of a pattern-tester template has been developed, containing two knives consisting of a handle and a blade, the spine of which is located at an angle of 10° relative to the blade, has a sawtooth cutting edge for 2/3 of its length, and has a sawtooth cutting edge for 1/3 of the length. made in the form of a false blade, the top of the blade turns into a hook-hook, deflected to the left side for one knife and to the right side for another knife, a mark is applied at the base of the blade, forming an angle of 50° between the handle and the blade located on the same straight line with a handle made of two plates, the thickness of which corresponds to the thickness of the sole of a cattle hoof and is 5 mm, the end of the handle is beveled at an angle of 45°, and its lower part is made with a sub-finger notch. The sawtooth cutting edge on both sides is made according to the serrated sharpening type. The length of the sawtooth cutting edge is equal to the standard value of the front wall of the claw and is 80 mm.

One knife is designed for use with the right hand, the other for use with the left hand.

The utility model is illustrated by drawings, where

fig. 1 - right-handed knife, straight view;

fig. 2 - right-handed knife, top view;

fig. 3 - left-handed knife, straight view;

fig. 4 - left-handed knife, bottom view.

fig. 5 - option for drawing the angle using the angle-level mark on the blade.

Each hoof knife with elements of a pattern-tester template consists of a handle 1 with stops 2 and 3, a blade 4, including a blade 5, a sawtooth cutting edge 6, a false blade 7, a hook 8. A mark 9 is applied to the blade. At a distance There is no sharpening on the blade 1-1.5 cm from the handle (Fig. 4, no position indicated), for operational safety.

The handle is attached to the shank using a riveted method. This design of the handle assumes its appropriate shape with a smooth, flat surface, which is a necessary condition when processing to determine the flat plane of the animal’s sole during the processing of the hooves, which is subsequently a necessary condition for proper functioning when the hoof comes into contact with the floor or ground. The bevel at the end of the handle at an angle of 45° is designed for a comfortable grip during processing using a thumb rest. The knife is designed as a partial fulang, which ensures strong fixation of the blade.

The blade is made of high-strength steel AUS-8 (domestic analogue of steel 95/18). Its design allows it to perform the necessary work of stripping and removing soft tissue and claw keratin horn. The sawtooth cutting edge of the blade is designed for cross cutting of hard material. The plane of the teeth coincides with the plane of the blade, the pitch of the teeth is TPI 5 with its height of 2.1 mm and width at the base of 2 mm. The teeth are located on the butt of the blade in two rows along the right and left edges. The 80 mm long sawtooth cutting edge allows you to initially measure the distance of the front wall of the claw and make a notch on it in accordance with the standard value. Deducing the angle using the angle-level mark on the blade (α 50°) allows you to check the angle between the sole and the front wall of the cattle hooves.

The useful model serves not only for the direct processing of cattle hooves, but also allows for additional measurements to be taken in accordance with the anatomical and morphological features of their structure, which serve as a topographical guide for a specialist in the processing of the distal part of the limb of the hooves to prevent work injuries. In particular, it is possible to carry out the following measurements.

1. Checking the angle between the sole and the front wall of the claws.

The angle is set to 50°, which makes it easy to recognize the permissible standard value of 45-50°.

2. Measuring the length of the front wall of the claws.

The average distance from the coronary girdle to the end of the hoof in Holstein-Friesian cows is 82 mm. Using a sawtooth cutting edge (80 mm) to measure, the front wall can be shortened to a length of 75-80 mm using a vertical cut at the thumb to the surface of the sole.

3. Checking the plane of contact of the sole with the ground.

Using a flat handle, you can determine whether, after processing the sole with a milling cutter, there is an uneven (asymmetrical) surface by applying the flat handle directly to the sole.

4. Determining the thickness of the sole of the claw using a knife handle, the thickness of each plate of which is 5 mm.

The sequence of work performed with a set of hoof knives with elements of a pattern tester template.

The animal is fixed in a specialized machine for processing the hooves. The limb is lifted, cleaned of dirt with a false blade 7 and partially with a sawtooth cutting edge 6, and small protrusions of keratin formation in the claw horn are trimmed. The distance of the anterior axial wall of the hoof is determined by using a sawtooth cutting edge 6, with a second hoof knife (left-handed or right-handed) a notch or border is made in accordance with the anatomical structure of the hoof, so as not to damage the soft internal tissues and blood vessels. After that, excess fragments are trimmed with hoof cutters. Next, functional processing is carried out using a cutter for processing the claws, and then the correct contours are given using a hoof knife in accordance with the anatomical structure. Determine the thickness of the sole of the claw horn in the area of the toe (about 5-6 mm) using the handle plate. The flat part of the handle of the hoof knife is used to determine and make the plane of the sole of the hoof flat by milling with a special disc for processing hooves. If the plane of the sole is uneven, then use a milling cutter to level the surface. The control angle between the sole and the front wall of the hooves is determined or derived using two knives and the angle-level marks on the blade (α 50°).

The use of a set of hoof knives with elements of a pattern-tester template allows you to reduce the number of tools a specialist in processing cattle hooves has during work, which is a necessary condition for performing fast and qualified work. The length of the handle of the hoof knife can be shortened or adjusted to the anatomical parameters of the specialist’s hand, so that it lies in the hand as comfortably as possible and does not slip out during work due to the wet environment: blood, aggressive media of urine and feces. The shape and design of the handle and blade ensure effective work on functional and therapeutic-orthopedic treatment of the hooves during the shift.

Claims (3)

1. A hoof knife with elements of a pattern-tester template, consisting of a handle and a blade, the spine of which is located at an angle of 10° relative to the blade, 2/3 of the length has a sawtooth cutting edge, 1/3 is made in the form of a false blade, the apex the blade turns into a hook-hook, deflected to the left side, at the base of the blade there is a mark, forming an angle of 50° between the handle and the blade, located on the same straight line with the handle, made of two plates, the thickness of which corresponds to the thickness of the sole of a cattle hoof and is 5 mm, the end of the handle is beveled at an angle of 45°, and its lower part is made with a finger groove. 2. Hoof knife according to claim 1, characterized in that the sawtooth cutting edge on both sides is made as a serrated sharpening. 3. The hoof knife according to claim 1, characterized in that the length of the sawtooth cutting edge is equal to the standard value of the front wall of the hoof and is 80 mm.

Images