CN203341857U

CN203341857U - Micro-momentum hip joint implantation material

Info

Publication number: CN203341857U
Application number: CN 201320349555
Authority: CN
Inventors: 李万红
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-12-18
Anticipated expiration: 2023-06-18

Abstract

The utility model relates to a micro-momentum hip joint implantation material which comprises an implantation material body 1. The implantation material body 1 is provided with one or more holes 12, and a locking nail 3 can be matched with a gap 13 through the hole 12 in the implantation material body 1. When the implantation material body 1 is implanted into the thighbone 2, the locking nail 3 and the thighbone 2 are relatively fixed through a hole 22 in the thighbone 2 and the hole 12 in the implantation material body, the locking nail 3 is matched with the gap 13 through the hole 12, therefore, the implantation material body 1 and the thighbone 2 can be relatively fixed in a non-close-fit mode, a certain included angle can be formed between the axis of the hole 12 in the implantation material body 1 and the longitudinal axis (Y-Y) on the implantation material body 1, and the hole 12 can be a round hole 14 or an oval hole 15 or a smooth hole 16 or a hole 17 with internal threads. The micro-momentum hip joint implantation material is simple in structure and high in practicability, and can be widely applied to treatment of human body hip joints.

Description

A kind of fine motion amount hip joint implant

Technical field

This utility model relates to a kind of fine motion amount hip joint implant, belongs to the medical material field.

Technical background

The people with age, the easy osteoporosis of human hip, perhaps because accident also easily causes human hip impaired, need carry out joint replacement surgery or tuberosity bone fracture joint replacement surgery or increase gradually because Fracture of femur needs the case of interior fixed reset operation because of the human hip pathological changes clinically, operation at present is all generally to adopt biochemical basis, adopt biochemical coating at implant surface, after the implant into body femur, to accelerate the healing of implant and human body, but this way makes patient's convalescent period become longer, after operation, to repose the long period, and easily produce complication, or employing physical principle, make ripple etc. at implant surface, after the implant into body femur, with strengthening friction to increase the relative stability of implant and femur, but patient is often owing to being older or the reason such as body constitution, majority is osteoporosis in various degree, therefore, cause implant to lack putting forth effort basis easily to make between implant and femur to produce loosening and be difficult to reach clinical purpose, and, the simple way with increasing frictional force, also there is it to be difficult to control part, if that is: implant coordinates tension with femur, but sclerotin is too loose, easily produces, if sclerotin is not too loose, easy stress concentration, cause certain stress concentration point too tired, affects post-operative recovery.

Summary of the invention

The purpose of this utility model is to provide between a kind of implant and femur and is matched in clearance, makes implant main body 1 and femur 2 relatively-stationary a kind of fine motion amount hip joint implant under non-tight fit state.

The purpose of this utility model is achieved through the following technical solutions:

A kind of fine motion amount hip joint implant, comprise implant main body 1, and implant main body 1 is provided with one or more hole 12.

Locking nail 3 can be complementary by the 12Cheng gap, hole 13 on implant main body 1.

When implant main body 1 during at implanted femur 2, locking nail 3 can be by the hole 12 on femur hole 22 and implant main body 1, with femur 2, do relative fixingly, locking nail 3 coordinates with 12Cheng gap, hole 13, make implant main body 1 with femur 2 relative fixing under non-tight fit state.

The axis in the hole 12 on implant main body 1 and the longitudinal axis (Y-Y) on implant main body 1 can be at a certain angle 18, and hole 12 can be circular hole 14 or ellipse circular hole 15 or naked body hole 16 or with internal thread hole 17 or with the chamfering 19 of importing effect.

The beneficial effects of the utility model are: the implant main body, in clinical use, can increase the stability after the implant into body femur, effective loosing prevention, anti-rotation; Greatly increased the quickly-healing of early stage bone network, reduce the time that the patient lies up, the effect of its " under non-tight fit state relatively fixing ", more can make to sink when implant is stressed and obtain comparatively ideal balance with the minimizing stress concentration, thereby adapt to different patients, particularly osteoporotic patient, make clinical operation become simpler.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:

Fig. 1 is this utility model structural representation

Fig. 2 is this utility model femur and femur hole cross-sectional schematic

Fig. 3 is this utility model locking nail structural representation

Fig. 4 is this utility model using state structural representation

Fig. 5 is this utility model using state partial enlarged drawing

Fig. 6 is this utility model screwed hole and angle structural representation

Fig. 7 is this utility model elliptical aperture, circular port, naked body hole, chamfering structure (front view) schematic diagram

Fig. 8 is this utility model elliptical aperture, circular port, naked body hole, chamfering structure (side view) schematic diagram

The specific embodiment

As shown in Fig. 1～8, a kind of fine motion amount hip joint implant, comprise implant main body 1, on the implant main body, 1 is provided with one or more hole 12, locking nail 3 can be complementary by the 12Cheng gap, hole 13 on implant main body 1, when implant main body 1 during at implanted femur 2, locking nail 3 can be by the hole 12 on femur hole 22 and implant main body 1, with femur 2, do relative fixing, locking nail 3 coordinates with 12Cheng gap, hole 13, make implant main body 1 with femur 2 relative fixing under non-tight fit state, the axis in the hole 12 on implant main body 1 and the longitudinal axis (Y-Y) on implant main body 1 can be at a certain angle, hole 12 can be circular hole 14 or ellipse circular hole 15 or naked body hole 16 or band internal thread hole 17.

Clinically, after hip joint implant main body 1 is implanted patient's femur 2, available various way, can on femur 2, get out the hole 22 with hole 12 coaxial lines, locking nail 3 need only be imported, locking nail 3 is bearing point by two holes 22 on femur 2, allow hip joint implant main body 1 be fixed in the internal medullary mass of femur 2, because locking nail 3 coordinates with the 12Cheng gap, hole 13 on main body 1, make main body 1 in the internal medullary mass of femur 2, be " under non-tight fit state relatively fixing ", thereby reach clinical purpose, increase the stability after implanting, effective loosing prevention, anti-rotation, and reducing the stressed sinking of implant and reducing stress concentration and obtain comparatively ideal balance.

Claims

1. a fine motion amount hip joint implant, comprise implant main body (1), and it is characterized in that: on the implant main body, (1) is provided with one or more hole (12).

2. a kind of fine motion amount hip joint implant according to claim 1, it is characterized in that: locking nail (3) can be gap (13) and be complementary by the hole (12) on implant main body (1).

3. a kind of fine motion amount hip joint implant according to claim 1, it is characterized in that: when implant main body (1) when implanted femur (2), locking nail (3) can be by the hole (12) on femur hole (22) and implant main body (1), with femur (2), do relative fixing, locking nail (3) is gap (13) with hole (12) and coordinates, make implant main body (1) with femur (2) relative fixing under non-tight fit state.

4. a kind of fine motion amount hip joint implant according to claim 1, it is characterized in that: axis and the longitudinal axis (Y-Y) on implant main body (1) in the hole (12) on implant main body (1) can be at a certain angle, and hole (12) can be circular hole (14) or ellipse circular hole (15) or naked body hole (16) or band internal thread hole (17).