CN217723823U - Acetabulum prosthesis angle navigator - Google Patents

Abstract

The utility model discloses an acetabular bone false body angle navigator belongs to medical instrument technical field, including base and support, the support is including cup jointing retainer plate on the base, setting at the dead lever in the retainer plate outside, the movable rod of being connected with the dead lever and fixing the supporting shoe at the movable rod tip to and set up mutually perpendicular's first slewing mechanism and second slewing mechanism between dead lever and movable rod, the supporting shoe is provided with the arc holding surface, the utility model discloses an arc holding surface is used in patient's hip, forms the outrigger, and the adaptability of abduction angle and anteversion angle is adjusted to the first slewing mechanism and the second slewing mechanism that rethread mutually perpendicular set up, adapts to different patients ' use, thereby improves the flexibility of supporting, provides the navigation for false body angular adjustment.

Description

Acetabulum prosthesis angle navigator

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to acetabular bone false body angle navigator.

Background

The acetabulum is seriously damaged or obviously degenerates, the joint movement is obviously limited, the living and working conditions are seriously influenced, and the hip joint replacement operation is required.

The accurate positioning of the acetabular cup prosthesis is an important step in hip replacement surgery and has important significance for the success of the surgery and the quality of life of patients after the surgery. Accurate positioning of the hip white cup prosthesis may strive for a maximum range of motion of the hip joint for the patient, reduce the risk of dislocation of the hip joint, and may maintain stability of the lower limb motility line.

The abduction and anteversion angles need to be pre-positioned prior to acetabular bruising. The prior art does not have special instrument to solve this problem, mainly carries out angle modulation through operating personnel's experience, leads to the operating efficiency low, simultaneously, also can be along with operator's mood fluctuation produces different corresponding deviations, influences the operation quality.

Therefore, there is a need to provide an angle navigator, which can provide stable support for the prosthesis during the operation, so that the hip socket prosthesis cannot be greatly displaced during the operation, the stability of the prosthesis is ensured, and the improvement of the operation quality is facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an acetabular bone prosthesis angle navigator has a plurality of degrees of freedom, for the prosthesis in the operation provides stable support to solve the problem that prior art poor stability, quality can't be guaranteed.

The purpose of the utility model is realized through the following scheme:

the utility model provides an acetabular bone false body angle navigator, includes base and support, the support is including cup jointing the retainer plate on the base, setting at the dead lever in the retainer plate outside, the movable rod of being connected with the dead lever and fixing the supporting shoe at the movable rod tip to and set up mutually perpendicular's first slewing mechanism and second slewing mechanism between dead lever and movable rod, the supporting shoe is provided with the arc holding surface.

Furthermore, the base is a rotating motor, a fixing groove is formed in a rotating main shaft of the rotating motor, and the fixing ring is sleeved in the fixing groove.

Furthermore, the joint of the fixed rod and the movable rod is in first flexible connection, and the movable rod is provided with second flexible connection.

Further, the first flexible connection and the second flexible connection are elastic segments.

Further, first slewing mechanism and second slewing mechanism all include with fixed drive shaft of support and driven shaft, be provided with the drive wheel in the drive shaft, set up on the driven shaft with the driven wheel of drive wheel meshing, the tightening belt has been cup jointed on drive shaft and the driven shaft.

Furthermore, all be provided with the connection pad on drive shaft and the driven shaft, the connection pad is provided with connection structure.

Further, a rotating handle is arranged at the top of the driving shaft.

The beneficial effects of the utility model reside in that:

the utility model discloses an arc holding surface is used in patient's hip, forms the stable support, and the adaptability of abduction angle and anteversion angle is adjusted to the first slewing mechanism and the second slewing mechanism that rethread mutually perpendicular set up, adapts to different patients' use to improve the flexibility of supporting, provide the navigation for false body angular adjustment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

fig. 1 is a front view of the acetabular prosthesis angle navigator of the present invention;

FIG. 2 is a front view of a second rotation mechanism;

FIG. 3 is a view showing an original state of the second rotating mechanism;

fig. 4 is an operation state diagram of the second rotating mechanism.

Reference numerals:

1-a base; 2-a scaffold; 3-a fixed ring; 4-fixing the rod; 5-a movable rod; 6-a supporting block; 7-a first rotation mechanism; 8-a second rotating mechanism; 9-arc support surface; 10-a fixed groove; 11-a first flexible connection; 12-a second flexible connection; 13-a drive shaft; 14-a driven shaft; 15-driving wheels; 16-a driven wheel; 17-tightening the belt; 18-a rotating handle; 19-connecting disc.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-4, the utility model discloses an acetabular prosthesis angle navigator, including base 1 and support 2, the support is including cup jointing retainer plate 3 on the base, setting up at the dead lever 4 in the retainer plate outside, the movable rod 5 of being connected with the dead lever and fixing at the supporting shoe 6 of movable rod tip to and set up mutually perpendicular's first slewing mechanism 7 and second slewing mechanism 8 between dead lever and movable rod, the supporting shoe is provided with arc holding surface 9.

In this embodiment, the base is a rotating electrical machine, a fixing groove 10 is provided on a rotating main shaft of the rotating electrical machine, and the fixing ring is sleeved in the fixing groove.

During the use, it is rotatory through the rotating electrical machines earlier, drive retainer plate, support rotation, carry out preliminary adjustment to the support position, make arc holding surface and acetabular bone false body form preliminary contact, the regulation of abduction angle is carried out to the first slewing mechanism of rethread, and rethread second slewing mechanism carries out the regulation of anteversion angle, reaches predetermined angle to form the stable support to hip false body.

In this embodiment, the junction of dead lever and movable rod is first flexonics 11, is provided with second flexonics 12 on the movable rod, and first flexonics and second flexonics are the elasticity section. The elastic section is made of elastic adhesive tape, so that the fixed rod and the movable rod can rotate relatively to adjust the direction.

In this embodiment, the first rotating mechanism and the second rotating mechanism both include a driving shaft 13 and a driven shaft 14 fixed to the support, a driving wheel 15 is disposed on the driving shaft, a driven wheel 16 engaged with the driving wheel is disposed on the driven shaft, and a tightening belt 17 is sleeved on the driving shaft and the driven shaft. The top of drive shaft sets up twist grip 18, and when using, through twist grip drive action wheel, the action wheel drive follows the driving wheel, makes angle change between the two to carry out the regulation of space position. The belt is tightened, so that a certain fixing force is generated after adjustment, a certain supporting force is kept, and the posture is stabilized.

In this embodiment, the driving shaft and the driven shaft are both provided with connecting discs 19, and the connecting discs are provided with connecting structures. The connecting structure can be a bolt or a screw, so that the assembly and disassembly are convenient.

In this embodiment, the dead lever is L type pole, and its one end is fixed with the retainer plate, and the other end is fixed with the movable rod to make support accessible horizontal direction be connected with the base, then its tip upwards direction extension again, realize the extension of support in the space direction.

In this embodiment, the rotating electrical machine is supplied with electrical energy by an external power source and is started or stopped by a control switch.

Finally, the above preferred embodiments are only intended to illustrate the technical solution of the invention and not to limit it, while the invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention defined by the claims.

Claims (7)

1. An acetabular prosthesis angle navigator, characterized in that: the support comprises a fixing ring sleeved on the base, a fixing rod arranged on the outer side of the fixing ring, a movable rod connected with the fixing rod, a supporting block fixed at the end part of the movable rod, a first rotating mechanism and a second rotating mechanism which are arranged between the fixing rod and the movable rod and are perpendicular to each other, and an arc-shaped supporting surface is arranged on the supporting block.

2. The acetabular prosthesis angle navigator of claim 1, wherein: the base is a rotating motor, a fixing groove is formed in a rotating main shaft of the rotating motor, and the fixing ring is sleeved in the fixing groove.

3. The acetabular prosthesis angle navigator of claim 1, wherein: the joint of the fixed rod and the movable rod is a first flexible connection, and a second flexible connection is arranged on the movable rod.

4. The acetabular prosthesis angle navigator of claim 3, wherein: the first flexible connection and the second flexible connection are elastic segments.

5. The acetabular prosthesis angle navigator of claim 4, wherein: the first rotating mechanism and the second rotating mechanism both comprise a driving shaft and a driven shaft which are fixed with the support, a driving wheel is arranged on the driving shaft, a driven wheel meshed with the driving wheel is arranged on the driven shaft, and a tightening belt is sleeved on the driving shaft and the driven shaft.

6. The acetabular prosthesis angle navigator of claim 5, wherein: and connecting discs are arranged on the driving shaft and the driven shaft, and are provided with connecting structures.

7. The acetabular prosthesis angle navigator of claim 5, wherein: and a rotating handle is arranged at the top of the driving shaft.

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