Arthrodesis implant and surgical kit comprising such an implant

1. An interphalangeal arthrodesis implant ( 1 ) for promoting the osseous fusion of a distal phalanx ( 2 ) with a proximal phalanx ( 3 ), said implant ( 1 ) comprising:

a primary component ( 4 ) including a primary anchoring body ( 5 ) intended to be anchored in a medullary canal of the distal phalange ( 2 ) and an elongated male connector ( 6 ); and

a secondary component ( 7 ) including a secondary anchoring body ( 8 ) intended to be anchored in a medullary canal of the proximal phalange ( 3 ) and a female connector ( 9 ), said female connector ( 9 ) comprising:

a main body ( 10 ) which extends longitudinally between a rear end ( 11 ) linked to said secondary anchoring body ( 8 ) and an opposite front face ( 12 ), and which has a lateral wall ( 14 ) linking said rear end ( 11 ) to said front face ( 12 ),

a housing ( 15 ) formed within said main body ( 10 ) and configured to receive said male connector ( 6 ) in order to link together said primary ( 4 ) and secondary ( 7 ) components, and

an opening ( 18 ) which is formed in said main body ( 10 ), in communication with said housing, ( 15 ), and which extends continuously on both said front face ( 12 ) and said lateral wall ( 14 ), and which is sized and configured to enable a lateral introduction of the male connector ( 6 ) into said housing ( 15 ) via said opening ( 18 ),

each of said primary ( 4 ) and secondary ( 6 ) components forming an integral part made in one piece, and said primary ( 5 ) and secondary ( 8 ) anchoring bodies being respectively designed to ensure the insertion and anchoring of the primary component ( 4 ) into the distal phalanx ( 2 ), and of the secondary component ( 7 ) into the proximal phalanx ( 3 ), by impaction or by forced wedging,

wherein the primary anchoring body ( 5 ) extends longitudinally between a primary penetrating end ( 35 ) for penetrating into the distal phalanx ( 2 ) and an opposite primary base end ( 36 ), and has a primary outer surface ( 39 ) linking the primary base end ( 36 ) to the primary penetrating and ( 35 ), the primary outer surface ( 39 ) having a generally convergent or conical shape, in the direction of the primary penetrating end ( 35 ), and provided with at least one longitudinal primary flattened portion ( 40 ) formed in said primary outer surface ( 39 ),

wherein the secondary anchoring body ( 8 ) extends longitudinally between a secondary penetrating end ( 37 ) for penetrating into the proximal phalanx ( 3 ) and an opposite secondary base end ( 38 ), and has a secondary outer surface ( 41 ) linking the secondary base end ( 38 ) to the secondary penetrating end ( 37 ), the secondary outer surface ( 41 ) having a generally convergent or conical shape, in the direction of the secondary penetrating end ( 37 ),

wherein the male connector ( 6 ) extends longitudinally between a first end ( 19 ) linked to the primary base end ( 36 ) of the primary anchoring body ( 5 ) and a second free end ( 20 ), and the male connector ( 6 ) comprises a first portion ( 22 A) and a second portion ( 22 B), the first portion ( 22 A) extending from said first end ( 19 ), whereas the second portion ( 22 B) prolongs said first portion ( 22 A) up to said second free end ( 20 ),

wherein said opening ( 18 ) of the female connector ( 9 ) comprises a first area ( 18 A) which extends on said front face ( 12 ) and a second area ( 18 B) which extends on said lateral wall ( 14 ) of the main body ( 10 ) of the female connector ( 9 ), said second opening area ( 18 B) formed as a substantially rectangular window extending longitudinally from a peripheral edge ( 13 ) of the front face ( 12 ) and in the direction of the rear end ( 11 ) of said main body ( 10 ), said second opening area ( 18 B) being shaped and configured to enable a lateral introduction of said second portion ( 22 B) of the male connector ( 6 ) into said housing ( 15 ) via said second area ( 18 B) of the opening ( 18 ),

wherein the male connector ( 6 ) comprises a plurality of teeth ( 23 ) protruding from the first portion ( 22 A) of the male connector ( 6 ) only, and the female connector ( 9 ) comprises a plurality of notches ( 24 ) formed along an inner wall ( 16 ) of the housing ( 15 ), the plurality of notches ( 24 ) complementary to the plurality of teeth ( 23 ) and cooperating to ensure relative locking of the primary ( 4 ) and secondary ( 7 ) components by enabling a progressive adjustment of the relative spacing of the primary ( 5 ) and secondary ( 8 ) anchoring bodies.

2. The interphalangeal arthrodesis implant ( 1 ) according to claim 1 , wherein said complementary plurality of teeth ( 23 ) and plurality of notches ( 24 ) are designed and configured to ensure a reversible relative locking of the primary ( 4 ) and secondary ( 7 ) components.

3. The interphalangeal arthrodesis implant ( 1 ) according to claim 1 , wherein said secondary anchoring body ( 8 ) is provided with at least one longitudinally secondary flattened portion ( 42 ) formed in said secondary outer surface ( 41 ).

4. The interphalangeal arthrodesis implant ( 1 ) according to claim 1 , wherein the primary anchoring body ( 5 ) extends longitudinally according to a first axis (A-A′), the male connector ( 6 ) extending longitudinally in a direction opposite to that of said primary anchoring body ( 5 ) according to a second axis (B-B′) which is coincident with said first axis (A-A′).

5. The interphalangeal arthrodesis implant ( 1 ) according to claim 1 , wherein the primary anchoring body ( 5 ) extends longitudinally according to a first axis (A-A′), the male connector ( 6 ) extending longitudinally in a direction opposite to that of said primary anchoring body ( 5 ) according to a second axis (B-B′) which is secant to said first axis (A-A′), the second axis (B-B′) being inclined with respect to said first axis (A-A′) at an elevation angle (a) comprised between 0° and 30°.