Gum Graft Collector

Abstract

A graft collector designed to facilitate and offer greater precision in performing the cutting and “dissection” of an area of the donor tissue in grafting operations. The graft collector is set as an anatomical grip handle based on a support head and fixation of a removable curved or angled blade. The cutting blade is provided with a cutting edge on two opposite sides, being folded in two points at 90°. The constructive arrangement of the graft collector allows the fixation of the cutting blade and its loosening and release for replacement. The said graft collector is a precise and anatomical grip instrument, designed for the good manual performance of the professional when cutting and removing the tissue to be used as a graft.

Claims

1. GUM GRAFT COLLECTOR (1) designed to perform the cutting and dissection of an area of donor tissue in graft operations, said graft collector (1) characterized by being configured as an anatomical handle found in a head of support and fixation of an angled, removable blade.

2. GUM GRAFT COLLECTOR, according to claim 1, characterized by the handle is an elongated body (2), anatomical, with a preferably oval profile, which extends to a support belly (3) with sinuous contours, from which the body remains in curvilinear neck (4) incorporating the head (5).

3. GUM GRAFT COLLECTOR, according to claim 1, characterized by the support belly (3) and the union of the body (2) with the head (5) receive a pattern of reentrant ribbings (NE) to aid the grip.

4. GUM GRAFT COLLECTOR, according to claim 1, characterized by a rounded head (5), that extends downwards, being interrupted by a semi-circular housing (6) and continuing until a coupling terminal (7) formed by an inverted U-slot through, said semi-circular housing (6) and coupling terminal (7) sharing a central hole (8).

5. GUM GRAFT COLLECTOR, according to claim 1, characterized by head (5) receives in its semi-circular housing (6) a fixing sheave (9) with threaded central hole (10) and side ribs (11), positioned in the housing (6) in order to be rotated.

6. GUM GRAFT COLLECTOR, according to claim 1, characterized by coupling terminal (7) receiving a clamping component (12), formed from a straight base that extends superiorly a threaded neck (13), which is inserted into the central threaded hole (10) of the fixing pulley (9) and inferiorly extends two opposing legs (14) and open at an angle in order to press against the walls of the terminal (7), the sides (15) of the U-folded cutting blade (16).

7. GUM GRAFT COLLECTOR, according to claim 1, characterized by the cutting blade (16) is a rectangular blade segment provided with cutting edge on the two opposite sides, this segment being folded in two points at 90°, resulting in a three-part blade, equal or not, with a folded horizontal base bounded by the vertical sides.

8. GUM GRAFT COLLECTOR, according to claim 1, characterized by the physical arrangement of the graft collector (1) allowing the rotation of the fixing pulley (9) in one direction to tighten and fix the blade (16) and the rotation of the fixing pulley (9) in the opposite direction loosen and release the blade (16).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Explained until then in a brief way, the invention is illustrated by the accompanying drawings.

[0024] FIG. 1—isometric view of the graft collector. Detail A shows the blade fastening components in an exploded state;

[0025] FIG. 2—side view of the graft collector. Detail B shows the partial view, of the head, in lateral median section;

[0026] FIG. 3—front view of the graft collector. Detail C shows the head in frontal median section;

[0027] FIG. 4—frontal sectional view, according to detail C, showing the introduction and fixation of the curved blade in the coupling terminal.

DETAILED DESCRIPTION OF THE INVENTION

[0028] In accordance with the attached drawings, the gum graft collector the reason for this patent application, is an innovative provision applied in a cutting instrument to collect gum graft. The instrument is more precisely presented as a graft collector (1), designed in order to facilitate and offer greater precision in performing the cutting and “dissection” of an area of the donor tissue in grafting operations.

[0029] In general, the graft collector (1) is set as an anatomical grip handle based on a support head and fixation of a removable curved or angled blade.

[0030] More specifically, as shown in FIGS. 1, 2 and 3, the graft collector's handle (1) is configured as an elongated body (2), anatomical, with an preferably oval profile, which extends to a belly of support (3) with sinuous contours, from which the body continues in a curvilinear neck (4) incorporating the head (5). The support belly (3) of the elongated body (2) and its union with the head (5) receive a pattern of reentrant ribs (NE) to aid the grip.

[0031] The said head (5) is rounded and extends downwards, being interrupted by a semi-circular housing (6) and continuing until a coupling terminal (7) formed by a through inverted U-slot. The semi-circular housing (6) and the coupling terminal (7) share a central hole (8).

[0032] The head (5) receives in its semi-circular housing (6) a fixing pulley (9) with a central threaded hole (10), and side ribs (11), being positioned in the housing (6) so that it can be rotated by user's finger with the aid of ribbings (11). The coupling terminal (7), in turn, receives a clamping component (12), formed from a straight base that extends superiorly a threaded neck (13), which is inserted in the central threaded hole (10) of the fixing pulley (9), and it extends inferiorly two opposing legs (14) and open at an angle in order to press against the walls of the terminal (7), the sides (15) of a U-folded cutting blade (16).

[0033] The cutting blade (16) is, more specifically, a rectangular blade segment with cutting edge on the two opposite sides, this segment being folded in two points at 90°, resulting in a three-part blade, equal or not, a horizontal base bounded by the vertical, folded sides.

[0034] The constructive arrangement of the graft collector (1) allows the rotation of the fixing pulley (9) by the user in one direction to tighten the clamping component (12) against the terminal (7), where the legs (14) at an angle firmly fix the sides (16) of the cutting blade (16) by pressing against the walls of said terminal (7), as shown in FIG. 4, and turning the fastening pulley (9) in the opposite direction loosen the clamping component (12), releasing the blade (16) for its removal and replacement.

[0035] Thus, it is possible to identify the graft collector (1) as a precise and anatomical grip instrument, having been designed for the good manual performance of the professional when cutting and removing the tissue to be used as a graft. Its cutting blade (16), folded in a U shape, allows the simple slide through the donor tissue to cut this in a portion controlled by its horizontal part and bounded by the vertical folded parts, performing the collection of the perfect graft portion in a single cut, without the need to make incisions almost handmade. It is to say that the conformation of the blade (16) allows the graft collection to be carried out with the appropriate dimensions and proportions for its use. This cutting movement is further assisted and significantly facilitated by the conformation of the head (5), which provides the ideal support for the professional's finger to exert continuous and easily controlled pressure during the cut.

[0036] In addition, the blade (16) can be easily replaced by screwing and unscrewing the fixing pulley (9).

[0037] Finally, the general shape of the elongated body (2) of the graft collector (1) allows its perfect use in almost any position the patient is in offering the professional an excellent range with easy variation of the positioning angle, unlike a scalpel.