CN106037924A - Tibial tuberosity traction nail embedding guider - Google Patents

Abstract

A tibial tubercle traction nail placement guide, comprising a tibial tuberosity base, a tibial distal base, and a connecting rod, the tibial tubercle base and the tibial distal base are respectively fixed on the tibial crest and constituted by the connecting rod Force line support, force line support is parallel to the tibial crest; the base of the distal tibia is a fixation device; the base of the tibial tubercle includes a visual level, a transverse hole, a transverse link, and a hollow link; the visual level is installed on the tibial tubercle The top of the base is used to verify the precise position of the nail when placing the nail; the transverse hole is the transverse through hole of the base of the tibial tuberosity, and the transverse connecting rod can slide freely through the transverse hole and remain perpendicular to the force line support; it needs to be fixed During this time, the lateral position of the lateral connecting rod in the tibial tubercle base is fixed by the set screw on the lateral hole. Finally, the best traction nail can be obtained, which is vertical to the longitudinal direction of the tibia and parallel to it in the horizontal direction.

Description

Tibial Tubercle Traction Screw Insertion Guide

technical field

The invention belongs to the technical field of medical equipment.

Background technique

Severely displaced femoral shaft and proximal femoral fractures often require emergency tibial tuberosity traction for reduction and fixation.

Because orthopedic surgeons can only rely on personal experience and are affected by operating conditions, the nails are often not accurately perpendicular to the tibia when placing the nails, which directly affects the traction effect. Sometimes even larger deviations occur, leading to traction failure or avulsion fracture of the tibial tuberosity.

In the prior art, the Chinese utility model patent CN 204931819 U disclosed on 2016.01.06 is a tibial tubercle traction operation locator, which includes a fixed frame and a sliding side plate, and the sliding side plate is arranged in the fixed frame; the fixed frame consists of a square Composed of groove and side wall, the side wall is set at one end of the square groove, and the side wall is provided with a square hollow, and the other two side walls of the square groove are symmetrically arranged with horizontal sliding groove 1; the sliding side plate is provided with a base, and the base A screw rod 1 is arranged in the middle, and the screw rod passes through the sliding groove on the side wall of the square groove. Nut 1 is arranged at both ends of the screw rod, and the nut 1 is arranged on the outside of the sliding groove.

The Chinese utility model patent 201642300 U published on 2010.11.24CN is a tibial tuberosity traction operation locator, which includes a telescopic tube, an adjuster and a positioning tube. The feature is that the telescopic tube is composed of two sections: an outer tube and an inner rod A regulator is provided between the outer tube and the inner rod, brackets are provided at both ends of the telescopic tube, a positioning tube and a connecting tube are respectively provided at the ends of the bracket, and the inner ends of the positioning tube and the connecting tube are wavy. During use, according to the patient's condition, adjust the distance between the brackets at both ends of the telescopic tube by adjusting the regulator between the outer tube and the inner rod, and then adjust the positioning tube and the connecting tube at the ends of the two brackets. 1. Fix the bone traction steel needle on the part of the patient, then insert the bone traction steel needle into the positioning tube, and then drive it in.

Contents of the invention

In order to reduce the situation of uneven nail quality, the present invention discloses a tibial tubercle traction nail insertion guide, which can quickly place the traction nail perpendicular to the tibia into the traction position below the tibial tuberosity. The guide of the present invention can help orthopedic surgeons place the traction nail in a satisfactory traction nail path when setting the nail.

Its structural representation of the technical scheme that the present invention takes is:

A tibial tubercle traction nail insertion guide, characterized in that it includes a tibial tubercle base 1, a tibial distal base 2, a connecting rod 3, the tibial tubercle base 1, tibial distal base 2 They are respectively fixed on the tibial crest and form a force line support through the connecting rod 3, and the force line support is parallel to the tibial crest.

The base 2 of the distal end of the tibia is a fixing device, which includes a curved and flexible body 23, an elastic rubber band 21, hooks 22 at both ends of the body, and the base is bound and fixed on the tibial crest by binding the elastic rubber band 21 .

The tibial tuberosity base 1 is an adjustment and guide actuator, which includes a visual level 11, a transverse hole 13, a transverse link 12, a hollow link 14,

The visual level 11 is installed on the top of the tibial tuberosity base 1 for checking the precise position of the nail when placing the nail;

The transverse hole 13 is a transverse through hole of the tibial tubercle base 1, and the transverse connecting rod 12 slides freely through the transverse hole 13 and remains perpendicular to the force line support; when it needs to be fixed, it passes through the transverse hole 13 The fixed screw 131 fixes the horizontal position of the transverse link 12 in the tibial tubercle base 1; the outer end of the transverse link 12 can be inserted into the hollow link 14, and the hollow link 14 remains parallel to the line of force support, and the hollow link The rod 14 can slide freely on the transverse link 12, and if necessary, fix its position on the transverse link 12 by screws;

The end of the hollow connecting rod 14 has a nail positioning channel 141, the nail positioning channel 141 is perpendicular to the body of the hollow connecting rod 14, and the nail positioning channel 141 is used to guide and drive the traction nails;

Slide each adjusting part (that is: the hollow link 14 can slide freely on the transverse link 12, and the transverse link 12 slides freely through the transverse hole 13), when the positioning hole 141 reaches the desired position, and the level 11 When the water drop is in the center, tighten all the screws so that the two bases and the connecting rod 3 become a rigid whole, and the traction nail passes through the positioning hole 141 parallel to the transverse connecting rod 12 and passes under the tibial tubercle, so that the best traction can finally be obtained The nail is perpendicular to the longitudinal direction of the tibia and parallel to it in the horizontal direction.

Based on the above technical solution, the guide of the present invention can help orthopedic surgeons place the traction nails in a perfect and satisfactory traction nail path when inserting the nails. Not only ensure that the bone traction pin is perpendicular to the longitudinal axis of the tibia on the sagittal plane, but also ensure that the traction pin is also perpendicular to the tibial shaft on the coronal plane and cross section.

Description of drawings

Fig. 1 is a structural schematic diagram of the inventive guide after installation.

Fig. 2 is a schematic structural view of the end 1 of the tibial tuberosity base.

Fig. 3 is a schematic diagram of the overall structure of the guider of the present invention when it is removed.

Fig. 4 is a structural schematic view of the components of the guide of the present invention.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

Example 1

As shown in Figure 1, Figure 2, Figure 3, and Figure 4:

The force line support is integrated through the tibial tubercle base 1 placed on the tibial tubercle and the tibial distal base 2 bound on the calf underneath. The line of force bracket is longitudinally parallel to the tibial crest. The legs 6 are shown in FIG. 1 .

The base 2 of the distal end of the tibia has an elastic rubber binding band 21, and the hook 22 on the base 2 can bind and fix the base on the tibial crest.

There is a visual level 11 on the tibial tuberosity base 1, which can prevent the nail from tilting up and down when the nail is placed.

There is also a transverse link 12 perpendicular to the line of force support on the tibial tubercle base 1, the transverse link 12 can slide freely through the transverse hole 13 on the base 1, and when it needs to be fixed, pass the fixing screw on the transverse hole 13 131 fixes the transverse link 12 . A hollow connecting rod 14 can be placed at one end of the transverse connecting rod 12. There is a nail positioning hole 141 at the end of the hollow connecting rod 14. The hollow connecting rod 14 can slide freely on the transverse connecting rod 12, and can also be fixed by screws.

When the positioning hole 141 reaches the desired position and the level 11 drops are at the center, tighten all the screws so that the base and the connecting rod 3 are integrated, and the traction nail passes through the positioning hole 141 parallel to the transverse connecting rod 12 and passes under the tibial tubercle , so that the traction nail is perpendicular to the longitudinal direction of the tibia, and the perfect nail path is parallel to it in the horizontal direction.

Compared with the utility model patents CN 204931819 U and 201642300 U in the prior art, the design principle of the product of the present invention is different; the utility model patent in the prior art can only ensure that the bone traction pin is perpendicular to the longitudinal axis of the tibia on the sagittal plane , and there is no guarantee that the distraction pin will also remain perpendicular to the tibial shaft in the coronal and cross-sectional planes.

Claims (1)

1. guider inserted by a skeletal traction through tibial tubercle nail, it is characterised in that include tibial tubercle pedestal (1), distal tibial base Seat (2), connecting rod (3), described tibial tubercle pedestal (1), distal tibial pedestal (2) are individually fixed on tibial crest and by even Extension bar (3) constitutes line of force support, and described line of force support is parallel with tibial crest；

Described distal tibial pedestal (2) includes in the bending tool body (23) of toughness, an India rubber band (21), body two ends Hook (22), is fixed on pedestal binding on tibial crest by the binding of India rubber band (21)；

Described tibial tubercle pedestal (1) includes visual level instrument (11), transverse holes (13), transverse link (12), connecting rod (14),

Described visual level instrument (11) checks and approves the accurate position of nail when being installed on the top of tibial tubercle pedestal (1) for putting nail Put；

Described transverse holes (13) is the cross through hole of tibial tubercle pedestal (1), and described transverse link (12) is by this transverse holes (13) in, free sliding and holding are perpendicular with line of force support；Then by the fixed screw in transverse holes (13) when needing fixing (131) fixed lateral connecting rod (12) in tibial tubercle pedestal (1) in horizontal position；The outer end of transverse link (12) can be inserted into Connecting rod (14), connecting rod (14) keeps paralleling with line of force support, and connecting rod (14) can be in transverse link (12) On slidably, be fixed its position in transverse link (12) if necessary by screw；

Described connecting rod (14) end puts nail duct, location (141) with one, described in put nail duct, location (141) with hollow even Bar (14) body is vertical, described in put nail duct, location (141) and squeeze into traction nail for guiding；

Slide each regulation parts, and when duct, location (141) arrives desired position, and level indicator (11) globule is positioned at center Time, to tighten all screws, make two pedestals and connecting rod (3) become rigidity overall, traction nail is by duct, location (141) and horizontal stroke To connecting rod (12) parallel across tibial tubercle below.