CN2426346Y

CN2426346Y - Combined acctabulum

Info

Publication number: CN2426346Y
Application number: CN 00235083
Authority: CN
Inventors: 黄国富; 陈汉文
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-20
Filing date: 2000-05-20
Publication date: 2001-04-11
Anticipated expiration: 2010-05-20

Abstract

The utility model relates to a combined hip joint cotyla, which is characterized in that the utility model is composed of an outer cotyla and an inner cotyla. The outer cotyla is provided with a rib equally divided into a plurality of sections. The rib is provided with screw holes and plugging holes. The inner cotyla is an ultra-clean semi-sphere surface and is inlaid in the outer cotyla. The inner cotyla and the outer cotyla are left with a gap. The inner cotyla and the outer cotyla are connected by a loosening mechanical connecting structure. The utility model has the advantages that the easy loosening problem of the artificial joint can be effectively solved, the installation and the operation are convenient and the service life is long.

Description

The modular hip prosthesis mortar

This utility model relates to a kind of orthopaedics artificial joint, particularly a kind of modular hip prosthesis mortar.

At present, existing manual acetabulum is generally contact cotyla between single-body type or the full position of combination type prosthese, monomer whose formula manual acetabulum must rely on bone cement and human body synostosis, and combination type idol part is only limited to gapless structure, it is short that existing shortcoming is to install the back service life, easily loosening, poor with the complete blending of tissue, not a kind of ideal artificial joint structure.

The purpose of this utility model is to design a kind of modular hip prosthesis mortar, it can not re-use bone cement when the artificial hip joint mortar is installed, the back is installed produces biological fixed effect, and operational approach is simple, is the very strong orthopaedics of a kind of practicality with artificial intraarticular glove.

The technical solution of the utility model: a kind of modular hip prosthesis mortar, it is characterized in that it is made of outer mortar and interior mortar, said outer mortar is a basket support, which is provided with the muscle of several five equilibriums, screw hole is arranged on the muscle, and the centre has for interior mortar inserts the patchhole that connects, and muscle is outer for putting the bone hole; Mortar is a ultra-clean hemisphere face in said, crouches in the outer mortar that is basket support, and the planar interior mortar outer end of ultra-clean hemisphere has a center guide pillar, inserts the patchhole that is connected with mortar in the confession on the outer mortar and cooperates connection, leaves the gap between interior mortar and outer mortar; Mortar is connected with the mechanical connecting structure of outer mortar according to loosing prevention in said.

The mechanical connecting structure of the loosing prevention that mortar is connected with outer mortar in above-mentioned said the making can be made of the fin position limiting structure between outer mortar and interior mortar, the oral area of the basket support of said outer mortar can be equipped with a ring-type bayonet socket, ring-type bayonet socket inner face etc. is arranged with boss, interior mortar oral area outer surface has the corresponding groove of boss that is arranged with outer mortar ring-type bayonet socket inner face etc., and the boss that the groove of interior mortar oral area outer surface and outer mortar ring-type bayonet socket inner face etc. are arranged with is and blocks spacing the connection.

Muscle on the basket support of above-mentioned said outer mortar can be " ten " font, " Y " font, " well " but the shape setting of font or other hollow out.

Screw hole on the basket support of above-mentioned said outer mortar can be single-row setting, also can be perpendicular or parallel biserial setting mutually.

Using method of the present utility model: at first, fix according to screw and human body bone with outer mortar earlier, put bone between mortar and interior mortar outside afterwards, the outer mortar of then interior mortar being packed into is with the patchhole of outer mortar according to the center guide pillar of interior mortar outer end and cooperates connection, simultaneously, block spacing the connection because the boss that the groove of mortar oral area outer surface and outer mortar ring-type bayonet socket inner face etc. were arranged with in interior mortar made after inserting is, reach fixed purpose.

Superiority of the present utility model is: 1, be skillfully constructed, can solve the easily loosening problem of mortar body portion of artificial joint effectively, make the complete bone fusion of artificial mortar and substrate hone lamella, more approach biological, physiological and fix; 2, simple in structure, the fitting operation facility, the useful life is permanent, and interior mortar is replaceable and outer mortar almost grows together and needn't change with the human body bone, so aspect such artificial joint field of application good DEVELOPMENT PROSPECT is being arranged.

Further specify present technique below in conjunction with drawings and Examples.

Fig. 1 is the related a kind of modular hip prosthesis mortar overall structure generalized section of this utility model.

Fig. 2 is the outer mortar overall structure vertical view of the related a kind of modular hip prosthesis mortar of this utility model.

Fig. 3 is that the A of outer mortar overall structure vertical view of the related a kind of modular hip prosthesis mortar of this utility model is to view.

Wherein 1 is outer mortar, 2 is interior mortar, and 3 is the muscle that outer mortar is provided with " ten " font, and 4 is screw hole, 5 is screw, 6 is patchhole, and 7 for putting the bone hole, and 8 is the center guide pillar of interior mortar outer end, 9 is the ring-type bayonet socket on the outer mortar, 10 boss that are provided with for ring-type bayonet socket inner face, 11 be on the interior mortar oral area outer surface with the corresponding groove of outer mortar ring-type bayonet socket boss, 12 gaps for leaving between interior mortar and outer mortar.

Embodiment: a kind of modular hip prosthesis mortar (seeing accompanying drawing 1,2,3), it is characterized in that it is made of outer mortar 1 and interior mortar 2, said outer mortar 1 is a basket support, which is provided with " ten " font muscle 3 of the quartering, screw hole 4 is arranged on the muscle 3, and the centre has for interior mortar inserts the patchhole 6 that connects, and muscle 3 is outer for putting bone hole 7, the oral area of basket support has a ring-type bayonet socket 9, and ring-type bayonet socket 9 inner faces etc. are arranged with boss 10; Mortar 2 is a ultra-clean hemisphere face in said, crouch in the outer mortar 1 that is basket support, planar interior mortar 2 outer ends of ultra-clean hemisphere have a center guide pillar 8, insert the patchhole 6 that is connected with mortar in the confession on the outer mortar 12 and cooperate connections, and 1 in interior mortar 2 and outer mortar leave gap 12; Interior mortar 2 oral area outer surfaces have the boss 10 corresponding grooves 11 that are arranged with ring-type bayonet socket 9 inner faces of outer mortar 1 etc., and the boss 10 that the groove 11 of interior mortar oral area outer surface and outer mortar ring-type bayonet socket inner face etc. are arranged with is and blocks spacing the connection (seeing accompanying drawing 1).

Muscle 3 on the above-mentioned said outer mortar 1 basket support is " ten " font setting (seeing accompanying drawing 2).

Screw hole 4 on above-mentioned said outer mortar 1 basket support " ten " the font muscle 3 is single-row setting (seeing accompanying drawing 2,3).

Claims

1, a kind of modular hip prosthesis mortar is characterized in that it is made of outer mortar and interior mortar, and said outer mortar is a basket support, which is provided with the muscle of several five equilibriums, and screw hole is arranged on the muscle, and the centre has for interior mortar inserts the patchhole that connects, and muscle is outer for putting the bone hole; Mortar is a ultra-clean hemisphere face in said, crouches in the outer mortar that is basket support, and the planar interior mortar outer end of ultra-clean hemisphere has a center guide pillar, inserts the patchhole that is connected with mortar in the confession on the outer mortar and cooperates connection, leaves the gap between interior mortar and outer mortar; Mortar is connected with the mechanical connecting structure of outer mortar according to loosing prevention in said.

2, by the said a kind of modular hip prosthesis mortar of claim 1, the mechanical connecting structure that it is characterized in that the loosing prevention that mortar is connected with outer mortar in said the making can be made of the fin position limiting structure between outer mortar and interior mortar, the oral area of the basket support of said outer mortar can be equipped with a ring-type bayonet socket, ring-type bayonet socket inner face etc. is arranged with boss, interior mortar oral area outer surface has the corresponding groove of boss that is arranged with outer mortar ring-type bayonet socket inner face etc., and the boss that the groove of interior mortar oral area outer surface and outer mortar ring-type bayonet socket inner face etc. are arranged with is and blocks spacing the connection.

3,, it is characterized in that muscle on the basket support of said outer mortar can be " ten " font, " Y " font, " well " but the shape setting of font or other hollow out by the said a kind of modular hip prosthesis mortar of claim 1.

4, by the said a kind of modular hip prosthesis mortar of claim 1, it is characterized in that the screw hole on the basket support of said outer mortar can be single-row setting, also can be perpendicular or parallel biserial setting mutually.