JPWO2020187444A5 - - Google Patents

Claims (18)

A set for endoscopically securing an implant to an intervertebral disc using nails or pins, comprising:
an applicator sleeve (1) insertable into the intervertebral disc via an endoscope and through which an implant can be inserted into the intervertebral disc defect;
a drill wire guide sleeve (2) sized to be inserted into the applicator sleeve (1);
a pusher (3) that transmits impact when the implant is fixed to the intervertebral disc using a nail or pin, and is sized to be inserted into the applicator sleeve (1) ;
The set further comprising a drill wire for pre-drilling a bony portion of a vertebral body through said implant . A set according to claim 1, wherein the applicator sleeve (1) has a beveled tip (11), a hollow cylindrical main part (12) and a flange-like distal part (13). the beveled tip (11) has two tip ends (21, 22) formed by cavities (17, 18) of said applicator sleeve (1); and/or
3. The claim 1 or 2, wherein the tip (11) of the applicator sleeve (1) is rotationally asymmetrically inclined with respect to the longitudinal axis (X) of the applicator sleeve (1). set of. The beveled tip (11) is rotationally asymmetrically beveled with respect to the longitudinal axis (X) of the applicator sleeve (1) and has two tip ends (21, 22). and
Said two tip ends (21, 22) and at least one line extending through them and parallel to said longitudinal axis (X) of said applicator sleeve (1) define at least one tip. defines faces (E1, E2),
With respect to said apical surface (E1), the upper slope (14) of said tip (11) is geometrically shaped by a cut having an upper surface (14) inclined at an upper apex angle α with respect to said apical surface (E1). and/or
With respect to the same or another apical surface (E2), by cutting the lower slope (15) of said tip (11) with a lower surface (15) inclined at a lower apex angle β with respect to said apical surface (E2) 4. A set according to claim 2 or 3, characterized geometrically. 20°≦α≦30 ° is applied to the upper tip angle α, and/or
5. The set according to claim 4, wherein 20[deg.]≤[beta]≤30[deg .] applies to the lower tip angle [beta]. The two tip ends (21, 22) have a height h perpendicular to the longitudinal axis (X) of the applicator sleeve (1), at which height
0.5mm≤h≤1.5mm
A set according to any one of claims 3 to 5, wherein is applied. A set according to any one of the preceding claims, wherein the drill wire guide sleeve (2) has a hollow cylindrical main part (201) and a flange-like distal part (202). said pusher (3) optionally has a protrusion (301) at its proximal end, a cylindrical body (302) and a pusher head (303) at its distal end, and / or
13 mm≦LSK≦17 mm applies to the length LSK of the pusher head (303) along the longitudinal axis (Z) of the pusher (3), and/or
The outer diameter DSK of the pushing tool head (303),
8 mm ≤ DSK ≤ 12 mm applies and/or
the length LD of the protrusion (301) along the longitudinal axis (Z) of the pusher (3),
1.9 mm ≤ LD ≤ 2.1 mm applies and/or
At the outer diameter DD of the protrusion (301),
A set according to any one of the preceding claims, wherein 0.9 mm ≤ DD ≤ 1.1 mm applies. The outer diameter DA of said applicator sleeve (1),
3.9 mm ≤ DA ≤ 4.1 mm applies, and
In the inner diameter dA of said applicator sleeve (1),
3.3 mm ≤ dA ≤ 3.5 mm applies, and
Outer diameter DB of said drill wire guide sleeve (2),
2.9 mm≦DB≦3.1 mm applies, and
In the inner diameter dB of said drill wire guide sleeve (2),
2.3 mm ≤ dB ≤ 2.5 mm applies, and
The outer diameter DS of the pushing tool (3),
A set according to any one of the preceding claims, wherein 2.9 mm ≤ DS ≤ 3.1 mm applies. on the length LA of said applicator sleeve (1),
215 mm≦LA≦290 mm applies, and
on the length LB of said drill wire guide sleeve (2),
210 mm ≤ LB ≤ 285 mm applies, and
The length LS of the pushing tool (3),
220 mm≦LS≦305 mm applies, and
Furthermore, LB<LA<LS applies, and
The specified lengths LA, LB, LS are the lengths of the flanged ends (13, 202) or head (303) of the respective parts (1, 2, 3), respectively. A set according to any one of the preceding claims, determined excluding the end portion (13, 202) or the head portion (303). on the length LFA of the flanged end (13) of the applicator sleeve (1) along the main axis (X) of the applicator sleeve (1) and on the flanged end of the applicator sleeve (1). 2.9 mm ≤ LFA ≤ 3.1 mm , and 9 mm ≤ DFA ≤ 11 mm , and/or
to the length LFB of the flanged distal end (202) of the drill wire guide sleeve (2) along the main axis (Y) of the drill wire guide sleeve (2); The outer diameter DFB of the flange-like end (202) applies LFB=LFA±0.1 mm and also applies DFB≧ DFA. set of. A set according to any one of the preceding claims, wherein the components of said set are reusable after proper sterilization. A set according to any preceding claim, further comprising an implant for insertion into an intervertebral disc. 14. A set according to claim 13 , wherein the implant is porous, spongy, dense, felt, non-woven or reticulated. The implant comprises the following materials: collagen;
- hyaluronan (hyaluronic acid);
- polyglycolic acid, polylactic acid and/or copolymers thereof;
- Polycaprolactone:
- native membranes, perichondrium and/or fascia, variants thereof;
- alginate;
- agarose;
- fibrin;
- an albumin-containing material;
- polysaccharides;
and combinations thereof;
A set according to any preceding claim, comprising at least one of Set according to any one of the preceding claims, further comprising at least one, preferably resorbable and/or radiopaque nail or pin for anchoring the implant in the intervertebral disc. Said nail or pin, preferably resorbable, has an applied diameter DN of 1.4 mm≦DN≦1.6 mm and/or
17. The set of claim 16 , wherein the resorbable and/or radiopaque nail or pin has an applied length LN of 10 mm < LN < 30 mm. The applicator sleeve (1) is attachable to an endoscope and/or
the connection between the endoscope and said applicator sleeve (1) does not require further fixation and/or
Set according to any one of the preceding claims, wherein the applicator sleeve (1) does not have a separate holder or handle .