SU311631A1 - PROSTHETIC DEVICES FOR DENTAL CATTLE TOOTH - Google Patents

Description

The invention relates to prosthetic appliances for teeth of livestock, preferably sheep.

A prosthetic device is known, consisting of one curved element covering a number of teeth, with a hollow lower part adapted for fitting onto and fastening to a number of teeth, and with an external gripping surface. However, crimping teeth is difficult to complete due to their angling.

A prosthetic device for the teeth of animals consists of at least one Bent element, the length of which corresponds to a number of teeth, moreover, the specified element has an external gripping surface and an oblong cavity, which extends 1POD outside the gripping surface and serves to adhere to a number of teeth by the attachments on which it is fixed. The element has the shape of a sickle with a concave top surface and a convex frontal surface, and these surfaces are in contact at an acute angle, forming a ridge along the specified exciting surface. Inside the element being described, there is at least one slot that extends along the radius of the curve from the edge of the element, allowing the element to be curved to fit more closely to the teeth.

Such a device provides a tighter fit of the prosthesis to the teeth, joins all the teeth into one block, which allows to distribute the load evenly on each tooth.

FIG. 1 shows a sheep's jaw and one of the prosthetic devices; in fig. 2 - the same, front view; in fig. 3 is a cross section along A-A in FIG. 2, side view; in fig. 4 - section across bb to fit. 1, top view; in fig. 5 is a view of the super x similar to FIG. four; in fig. 6 is a variant of a prosthetic device including a fastening device, a front view; in fig. 7 - the same, top view; in fig. 8 is a cross-section along BB in FIG. 6, top view; in fig. 9 is a cross section along G-D in FIG. 6, side view; in fig. 10 is a front view of a prosthetic device including an attachment device; in fig. 11 and 12 are the same, other options; in fig. 13 is a cross section in d-d in FIG. 12, side view; in fig. 14 is a variant of a prosthetic attachment containing a fastening device, a perspective image —front; in fig. 15 - prosthetic device according to FIG. 14, a perspective rear view; on -fig. 16 is a cross-sectional view of the tool of FIG. 14, 15, top view; in fig. 17 is a variant of a prosthetic attachment including a fastening device, a perspective front view; in fig. 18 is a complete cross-section of the device according to phi1. 17, side view; pas figs. 19 is a variant of a prosthetic device including a fastening device, a perspective view of the front; in fig. 20 — adaptation of FIG. 19, a perspective rear view; in fig. 21 is a front view of a prosthetic device including an attachment device; ina of FIG. 22 is a cross-sectional view along E-E in FIG. 21, species sver.khu; in fig. 23 is a cross-section along the LF in FIG. 21, side view; in fig. 24 is a variant of a prosthetic device having a modified form, a perspective view from above; in fig. 25 is a full cross-sectional view of the tool of FIG. 24, side view; in fig. 26 — adaptation but FIG. 24, fork, top; in fig. 27 is a cross-sectional view along the AND in FIG. 26; pas figs. 28 and 29 show a complete cross-section of the device according to FIG. 24. The prosthetic device shown in FIG. 1-5, contains isogue element / made of durable corrosion-resistant metal, such as brass. The element / is located across the cutting teeth of the animal 2 and is made in the form of a sickle with a cavity a on the lower side passing through the cell in the vicinity of the Concave gripping surface b. Surface b (see Fig. 3) is in contact with the convex front surface 8 under an acute angle, forming an edge g. The edge 3 along the back edge g of the surface b serves to fit and fix the element on the teeth. Two slits e (see Fig. 2) partially pass through the element from the back along the radius of the curve. The slits can be widened (see Fig. 4) or sulsen (see Fig. 5) to facilitate the installation of elements on the jaw and teeth of various sizes and curvatures. The element is attached to the teeth by mechanical friction or stretching. The surface of the cavity a of the element and the teeth 2 are held together with cement filling the gaps in the row of teeth — the gaps between the teeth or voids formed by broken or pulling teeth. Strong friction and stretching is necessary to secure the element before cement is applied and hardens. Modified forms of mechanical locking devices are described below. According to FIG. 6-9, the element / prosthetic device is basically similar in shape to the device of FIG. 1-5. It is provided with tensile wires 4 wound around the teeth. The wires are fixed at points 5 on the back side of the element and run out on tippers 6 on the central lower protrusion 7 (cf. Fig. 9) of the element after passing through the protrusion holes. turning the keys 8, so that the wires pull tightly on the studs and hold the element tightly onto the teeth. The wires 4 also help to attach the teeth to one another, in case there is a loose tooth. In order to prevent the teeth from collapsing in the center under the action of the pressure of the wires 4, protrusions 9 are created in the inner cavity of the temperament / on which the teeth can rest. The pins 6 are recessed into the protrusion 7 in order to avoid injuries of the oral cavity of the animal as a result of the friction of the protruding pins and wire. Cement is applied as described above. According to FIG. 10, the element / prosthetic device is similar to the element shown in FIG. 6-9, with the only difference that the tensile force is connected by the wires 4 by rotating the single pin 6 with the key fS. The element / prosthetic device shown in FIG. 11 is also provided with wires for pulling the device onto the teeth 2. However, in this embodiment, the wires end in a slot, tapering at the ends, so that the wires are firmly wedged after they are manually pulled through the hole. According to FIG. 12 and 13, the element / prosthetic device in form is basically the same as the device shown in FIG. 1-5. The mechanical fastening device consists of cleats W, protruding from a hole in the frontal surface across the cavity and entering the holes on the back edge of the e. fixed IB holes x where the thread is pre-cut. The element / prosthetic device shown in FIG. 14-16, but the form is basically similar to the fixture depicted in FIG. 1-5. Frontal surface in elemept / formed by protrusions //. The fastening clip 12 covers the protrusions and is attracted to them by a nut / 5 screwed onto the flat-head bolt 14, which passes through the opening to the front surface 8 of the element /. There are grooves on the fastening strap, which press onto the protrusions 11 and thereby give them a proper shape for a tighter fit on the teeth. According to FIG. 17 and 18, the element / is not fundamentally different in shape from the elements described above. The fastening clip 12 is located inside element 1 and is superimposed on a deformable plate with protrusions //, which is embedded in the element and is attached to several teeth. The bracket 12 presses against the plate, pressing it against the teeth, under the pressure of the bolt 14 installed in the threaded hole, and thus secures the entire system, including the element, to the teeth.

Element / in FIG. 19 and 20 has essentially the same form as the one described above. Here the protrusions / exit out of the front surface of the element /. The head of a bolt 14 passing through a hole in this surface is pressed against the projections I. At the inner side, the bolt is fixed with a nut.

According to FIG. 21-23, element 1 has essentially the same shape. The teeth 15 are mounted along the edges of the cavity and, with the possibility of being deformed, sagging inward to make contact with the teeth in order to securely secure the element to the teeth until the cement hardens.

The element / shown in FIG. 24 and 25, has the shape of an arc with a slightly concave lower surface. Pins or screws — pass from the upper surface between adjacent teeth 2 to a plate element or nut attached to the front surface of teeth 2 and thereby attracting the system to the teeth.

According to FIG. 26 and 27, element 1 is a curved plate that encloses the front surface of teeth 2, the upper edge of which slightly protrudes above the teeth. The pins or screws extend from element 1 between adjacent teeth to another plate or strip 16 that engages the teeth from behind and thereby attracts the elements to the teeth.

Depicted “a FIG. 28, the element 1 has basically the same shape as the elements shown in FIG. 1-5, but made of a material of low ductility. The hem and gripping surface are covered with a metal strip in order to reduce their wear.

FIG. 29 shows the element / formed by using the removable form 17. In this case, a hardening plastic material is applied to the teeth and is given a proper configuration, after which the form is removed.

The described perception can be used not only for the replacement of teeth of sheep, but also for other animals, for example cattle.

Subject invention

Claims (14)

1. A prosthetic device for home livestock teeth, consisting at least of one curved element, the length of which corresponds to the width of several teeth, having an external gripping surface and an elongated cavity extending under it, which serves to grip by fitting to the teeth, and the element itself is made crescent shape with a concave top surface and a convex frontal surface, and these surfaces are in contact at an acute angle, forming a ridge along the gripping surface, characterized by for the purpose of varying the curvature the element and thereby making it more snug against the teeth inside the curved element, at least one slot is made, extending along the radius of the curve from the edge of this element. 2. A device according to claim 1, characterized in that it comprises a means comprising at least one stretching strip or wire fixed on a curved element and stretched at least on one of the teeth. 3. The appliance according to claim 2, characterized in that each end of a pair of tension strips or wires ends at the central part of the lower front surface of the element, and the other ends of these strips or wires are fixed at a point or points on the back of the element. 4. Apparatus according to claim 3, characterized in that the ends of the wires are drawn through a slot located in the center of the lower front part of the element, the slot being narrowed at the ends to pinch the ends of the wires. 5. A device according to claim 2, characterized in that the wires or strips are drawn through a corresponding hole located in the center of the lower front part of the element and are wound on a pin, while the tension is carried out by rotating the pin about its axis, perpendicular to the holes . 6. An arrangement according to claim 1, characterized in that it comprises fastening means, including linear tensioning means, passing through the lower hollow portion between adjacent teeth to attract the element to the teeth. 7. An arrangement as claimed in Claim 6, characterized in that the tensioning means consists of several cotter pins inserted from the front surface of the element for insertion into holes in the rear surface of the element. 8. Apparatus according to claim 6, characterized in that the tensioning means consists of at least one threaded bolt inserted from the back surface of the element so that it protrudes from the front surface of the element to screw a nut onto it. 9. The appliance according to claim 8, characterized in that said surface is provided with protrusions, wherein the fastening brace encloses the protrusions and the bolt passes through this brace, whereby the system can be attached to the teeth. 10. Device on PP. 1 and 9, characterized in that it is provided with a deformable plate extending over the teeth and under the lower surface of the front part of the element, the fastening clip covering the plate and the threaded bolt sitting in the hole in the front part and abutting against this clip, whereby the bracket is tensioned onto the plate and the system is attached to the teeth. 11. Fixture by “. 1, characterized in that one of the curved elements is fixed on the teeth by means of linear tension, extending from it between adjacent teeth to another element, which are drawn to the teeth on the opposite side of these teeth from the first element. 12. The appliance according to claim 1, characterized in that it comprises fastening means, including several deformable legs, extending along the edges of the element adjacent to the hollow surface. 13. An apparatus according to claim 1, characterized in that the fastening means include a strongly hardening adhesive cement. 14. A device according to claim 1, characterized in that the element is made of a hard-plastic material, and the gripping surface is covered with metal. P . d, g e g Rig 2 Rig 3  FIG. eleven 1 If g 9e Fig fff  77 Fig fff A g C. g ush) m-fH Fig 2 FIG 22