JPWO2020030656A5

JPWO2020030656A5 -

Info

Publication number: JPWO2020030656A5
Application number: JP2021531183A
Authority: JP
Publication date: 2022-08-16

Claims

A bone clamp (1, 200, 300) used for fixation of a fractured bone or prevention of bone fracture, said clamps (1, 200, 300) being joined together at a pivot point (5) A pair of handles (2a, 2b) are provided, each of said handles (2a, 2b) having an arcuate jaw (4a, 4b), said arcuate jaws (4a, 4b) connecting said jaws (4a, 4a). proximal ends (12a, 12b) of said jaws (4a, 4b) communicating with second ends (8a, 8b) having openings at the distal ends (14a, 14b) of said jaws (4a, 4b). a first end (7a, 7b) having an opening in said first end (7a, 7b) and said second end (8a, 8b) defining a channel (6a, 6b) said channels (6a, 6b) are adapted to accommodate cables, wires, sutures, bands or other suitable flexible material, and said channels (6a, 6b) are adapted to: Bone clamp (1, 200, 300) characterized in that it is an open channel extending through the inner surface (10a, 10b) of said arcuate jaws (4a, 4b).

Bone clamp (1, 200, 300) according to claim 1, wherein at least one of said second ends (8a, 8b) is flared.

one of said second ends (8a, 8b) is flared and the other said second end is square, rounded, beveled or flared 3. A bone clamp (1, 200, 300) according to claim 2, which is rectangular or rectangular.

at least one of the first ends (7a, 7b) is flared ;
When one of said first ends (7a, 7b) is flared, the other said first end is square, rounded, beveled or flared. Bone clamp (1, 200, 300) according to any one of the preceding claims, wherein the bone clamp (1, 200, 300) is rectangular or rectangular .

Bone according to any one of the preceding claims, wherein at least one of said inner surfaces (10a, 10b) comprises a plurality of ridges (12) extending perpendicularly to said channels (6a, 6b). Clamp (1, 200, 300).

Bone clamp ( 1 , 200, 300) according to any one of the preceding claims, wherein said arcuate jaws (4a, 4b) have an arc that is between 11.25° and 270°.

The handles (2a, 2b) are identical at the pivot point (5) where the central portions (3a, 3b) of the handles (2a, 2b) are connected to each other by a coupling connector (18) and a slot (16). Bone clamp ( 1 , 200, 300) according to any one of the preceding claims, capable of sliding relative to each other in a plane.

Bone clamp ( 1 , 200, 300) according to any one of the preceding claims, wherein said handle (2a, 2b) further comprises clamping means.

Bone clamp ( 1 , 200, 300) according to any one of the preceding claims, wherein said bone clamp (1, 200, 300) is made of stainless steel, titanium, carbon steel, graphene, platinum or alloys thereof. 200, 300).

The claim wherein either one or both of said channels (6a, 6b) are inclined at an angle of about 0.01° to about 45° relative to said centerline of said jaws (4a, 4b), respectively. 10. A bone clamp (1, 200, 300) according to any one of claims 1-9 .

Bone clamp (1, 200, 300) according to claim 8 , wherein only said channel (6a) is inclined at an angle to said centerline of said jaw (4a).

further a ledge (201) extending outwardly from the inner surface (202) of said jaw (4b) between said first end (7b) and said central portion (3b) of said handle (2b); Bone clamp (1, 200, 300) according to any one of claims 1 to 11 .

13. The method of any one of claims 1 to 12 , further comprising a retractable sleeve (401) extending from said distal end (14b) of one jaw to said distal end (14a) of the other jaw. A bone clamp as described (1, 200, 300).

The central portion (3b) of the handle (2b) between the pivot point (5) and the first end (7b) is convex with respect to the central plane of the channel (6b) or Bone clamp ( 1 , 200, 300) according to any one of the preceding claims, having any of the concave surfaces.

Said cable (100) comprises a body (101) and a tip (102), characterized in that said tip (102) is stiffened and has a chamfered end point (102a), said tip (102) being curved. A cross-sectional shape adapted to engage with said channel (6a, 6b) of a bone clamp (1, 200, 300) according to claim 1, wherein said cage and said tip (102) have a similar cross-sectional shape. A cable (100) for use with a bone clamp (1, 200, 300) according to claim 1, comprising:

Edges (202a, 202b) and sides (202a, 202b) such that said chamfered end points (102a) correspond to the cross-sectional shape of said openings 7b, 8a of the bone clamp (1, 200, 300) according to claim 1. 16. Cable (100) according to claim 15 , for use with a bone clamp (1, 200, 300) according to claim 1, further comprising a bone clamp (1, 200, 300) according to claim 1, further comprising:

Said tip (102) further comprises a non-curved portion (102b) between said cable body (101) and said tip (102), and said tip (102) comprises said non-curved portion (102b) and said 17. Cable (100) according to claim 15 or 16 for use with a bone clamp (1, 200, 300) according to claim 1, curved between chamfered end points (102a).

The curved portion between the non-curved portion (102b) and the chamfered end point (102a) of the tip (102) is defined by the arcuate jaw (4a) of the clamp (1, 200, 300) according to claim 1. 18. The cable (100) of claim 17 for use with the bone clamp (1, 200, 300) of claim 1, having an arc coinciding with that of arcs of 4b).

Cable (100) according to claim 18 , for use with said bone clamp (1, 200, 300), wherein said tip (102) has an arc that is between 11.25° and 270°.

2. The method of claim 1, wherein the radius of curvature of said tip (102) is slightly greater than the diameter of the bone to be clamped, approximately equal to said diameter of said bone, or less than 50% less than said diameter of said bone. Cable (100) according to any one of claims 15 to 19 , for use with a bone clamp (1, 200, 300) according to any one of claims 15-19.

Bone clamp (1, 1) according to claim 1, wherein said tip (102) is fixed to said body (101) of said cable (100) by welding, gluing, snap fitting, screwing or male-female coupling. Cable (100) according to any one of claims 15 to 20 for use with 200, 300).

wherein said cable (100) is made from medical grade materials such as stainless steel, titanium, cobalt-chromium-molybdenum alloys, carbon steel, graphene, platinum, biocompatible polymers and alloys thereof, or combinations thereof; Cable (100) according to any one of claims 15 to 21 , for use with a bone clamp (1, 200, 300) according to claim 1.

The tip (102) may be square, rectangular, triangular, elliptical, pentagonal, hexagonal, heptagonal, octagonal, star-shaped, substantially flat, oval, flat with rounded edges, or any combination thereof. Cable (100) according to any one of claims 15 to 22 for use with a bone clamp (1, 200, 300) according to claim 1, having cross-sectional shapes selected from a combination.

A kit for use in internal fixation of fractured bones or prevention of bone fractures, comprising:
A bone clamp (1, 200, 300) according to claim 1;
comprising a body (101) and a tip (102), characterized in that said tip (102) is stiffened and has a chamfered end point (102a), said tip (102) is curved and said tip is curved; A cable (100) having a cross-sectional shape adapted to engage with said channel (6a, 6b) of a bone clamp (1, 200, 300) according to claim 1, wherein (102) has a similar cross-sectional shape. )When,
Kit with .