CN210354875U

CN210354875U - Pelvis rear ring sliding steel plate fixing structure

Info

Publication number: CN210354875U
Application number: CN201920817194.2U
Authority: CN
Inventors: 唐经励
Original assignee: Liuzhou Workers Hospital
Current assignee: Liuzhou Workers Hospital
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-21
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a ring sliding steel plate fixed knot constructs behind pelvis, including first fixed plate, second fixed plate and a plurality of set screw, first fixed plate all is equipped with corresponding first fixed orifices with the wherein one end of second fixed plate, set screw passes two first fixed orifices and fixes at the middle part of sacrum or passes from the middle part of sacrum and fix on another hip, the other end of first fixed plate all slides with the other end of second fixed plate and is provided with the slide, be equipped with the second fixed orifices on the slide, through the relative position between the adjustable second fixed orifices of slide and the first fixed orifices, set screw passes the second fixed orifices and fixes on another hip, and lock the slide. The utility model discloses a pelvis rear ring sliding steel plate fixed knot constructs can make the fixed of pelvis more firm to it is convenient to adjust, and the installation of being convenient for has improved work efficiency.

Description

Pelvis rear ring sliding steel plate fixing structure

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a pelvis back ring sliding steel plate fixed knot constructs.

Background

Posterior pelvic ring injury is a more severe form of pelvic fracture, often involving more complications and a higher mortality rate due to the complex anatomy of the pelvis and the injurious causes of high energy injuries. After injury of the posterior pelvic ring, reduction and fixation are of great importance in controlling bleeding, maintaining pelvic stability, alleviating further peripheral soft tissue injury, and improving prognosis.

The existing fixing mode is generally to fix by penetrating through the left and right hip bones, but in practice, the fixing is not stable enough, a great deal of research data shows that the fixing should be fixed on the sacrum while fixing the hip bones, and the existing fixing structure has the defects that the position adjustment of the fixing installation is difficult and the installation is inconvenient because the fixing hole position on the fixing steel plate is fixed, thereby affecting the working efficiency.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide a pelvis back ring sliding steel plate fixed knot and construct for the fixed of pelvis is more firm, and it is convenient to adjust, and the installation of being convenient for has improved work efficiency.

The utility model discloses a realize through following technical scheme: a sliding steel plate fixing structure for the posterior pelvic ring comprises a first fixing plate, a second fixing plate and three fixing screws, wherein the first fixing plate and the second fixing plate are installed on one hip bone, one end of the first fixing plate and one end of the second fixing plate are respectively provided with a corresponding first fixing hole, one fixing screw penetrates through the two first fixing holes, the end part of the fixing screw is fixed to the middle part of a sacrum or the middle part of the sacrum penetrates through the other hip bone and is fixed to the other hip bone, one end of the first fixing plate and one end of the second fixing plate are locked on the one hip bone, a sliding plate is arranged at the other end of the first fixing plate and the other end of the second fixing plate in a sliding mode, a second fixing hole is formed in the sliding plate, the relative position between the second fixing hole and the first fixing hole can be adjusted by sliding the sliding plate, and the other two fixing screws respectively penetrate through the second fixing holes on the two sliding plates and lock the two sliding plates so as to fix the other ends of the first fixing plate and the second fixing plate on the hip bone, wherein the end part of the fixing screw installed at the other end of the first fixing plate is fixed on the second sacral vertebra below the sacrum, and the end part of the fixing screw installed at the other end of the second fixing plate is fixed on the other hip bone.

Further, first fixed plate with the second fixed plate all includes stiff end and regulation end, the stiff end is the platelike setting, first fixed orifices sets up on the fixed end, adjust the end with the fixed end links to each other and is equipped with the slide rail with slide sliding fit.

Furthermore, the adjusting end is in a half-ring shape and comprises two parallel sliding rails, one end of each sliding rail is fixedly connected with the fixed end, and the other end of each sliding rail is connected with the fixed end through a connecting part.

Furthermore, the edges of the two sides of the sliding plate are respectively provided with a sliding chute which is in sliding fit with the sliding rail.

Furthermore, the sliding groove is a dovetail groove, and a sliding strip in sliding fit with the dovetail groove is convexly arranged on the sliding rail.

Furthermore, convex strips are arranged on two sides of the sliding plate, and grooves in sliding fit with the convex strips are formed in the sliding rail.

Further, the second fixing hole comprises two hole positions, wherein one hole position is a threaded hole, and the other hole position is a tapered hole.

Further, the first fixing hole is a tapered hole.

The beneficial effects are that: compared with the prior art, the utility model discloses when the sliding steel plate fixed knot of ring constructs behind pelvis passes through two fixed hipbones of set screw, still fix sacrum and hipbone through set screw, the stability of pelvis fixed knot structure has been improved, set up the second fixed orifices on the slide simultaneously, can adjust the relative position between second fixed orifices and the first fixed orifices through removing the slide, and then remove the second fixed orifices and fix to being fit for fixed position, and the installation of being convenient for has improved work efficiency, can be applicable to the disease of different pelvis sizes.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a front view of the fixing structure of the posterior pelvic ring sliding steel plate of the present invention;

fig. 2 is a side view of the fixing structure of the posterior pelvic ring sliding steel plate of the present invention;

FIG. 3 is a schematic structural diagram of an embodiment of the first fixing plate in FIG. 1;

FIG. 4 is a schematic view of an installation configuration of one embodiment of the slider of FIG. 3;

fig. 5 is a schematic view of an installation structure of another embodiment of the slide board in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, a sliding steel plate fixing structure for the posterior pelvic ring comprises a first fixing plate 1, a second fixing plate 2 and three fixing screws 3, wherein the first fixing plate 1, the second fixing plate 2 and the fixing screws 3 are made of rustproof steel, generally, a human body usually has two hip bones at the left and the right, the first fixing plate 1 and the second fixing plate 2 are installed on one hip bone, wherein one end of the first fixing plate 1 and one end of the second fixing plate 2 are respectively provided with a corresponding first fixing hole 4, one fixing screw 3 passes through the two first fixing holes 4, the end of the fixing screw 3 is fixed on the middle part of the sacrum or continuously passes through the middle part of the sacrum and is fixed on the other hip bone, and one end of the first fixing plate 1 and the second fixing plate 2 is fixed on one hip bone, in other words, the first fixing hole 4 on the first fixing plate 1 and the first fixing hole 4 on the second fixing plate 2 can mutually form a through hole, the end of the fixing screw 3 is connected with the sacrum through the through hole, when the fixing screw 3 is fixed, the end of the fixing screw can be fixed in the middle of the sacrum without penetrating through the sacrum, so as to reduce the risk of injury to nerves when the fixing screw completely penetrates through the sacrum, or the end can completely penetrate through the middle of the sacrum and is fixedly connected with the other hip bone, so as to improve the stability of fixation, a sliding plate 5 is arranged at the other end of the first fixing plate 1 and the other end of the second fixing plate 2 in a sliding way, a second fixing hole 6 is arranged on the sliding plate 5, the relative position between the second fixing hole 6 and the first fixing hole 4 can be adjusted through the sliding plate 5, the other two fixing screws 3 respectively penetrate through the second fixing holes 6 on the two sliding plates 5 and lock the two sliding plates 5, so that the other ends of the first fixing plate 1 and the second fixing plate 2 are fixed on one hip bone, wherein the end of the fixing screw 3 arranged at the other end of the first fixing, the end of the fixing screw 3 mounted on the other end of the second fixing plate 2 is fixed on the other hip bone.

Specifically, when in fixation, one end of the first fixing plate 1 and one end of the second fixing plate 2 are fixed on the hip bone through the fixing screw 3, then the position of the sliding plate 5 is adjusted, and finally the fixing screw 3 is matched with the second fixing hole 6 on the sliding plate 5, so that the other end of the first fixing plate 1 and the other end of the second fixing plate 2 are also fixed on the hip bone, the first fixing hole 4 can be a common taper hole or a threaded hole, for the convenience of driving the fixing screw 3, the taper hole is preferred, and the nut diameter of the fixing screw 3 is larger than the aperture of the taper hole, so that the nut of the fixing screw 3 presses the end parts of the first fixing plate 1 and the second fixing plate 2 on the hip bone simultaneously after being lifted tightly, the fixing structure is simple, the fixing stability is improved, after one end of the first fixing plate 1 and one end of the second fixing plate 2 are both fixed on the hip bone, can adjust the relative position between second fixed orifices 6 and the first fixed orifices 4 through removing slide 5 to make second fixed orifices 6 remove to the position that is fit for fixing, thereby the installation of the set screw 3 of being convenient for, through locking set screw 3, thereby fix slide 5, the installation of being convenient for has improved work efficiency, can be applicable to the disease of different pelvis sizes. In another embodiment, the fixing screw 3 provided at the other end of the first fixing plate may be fixedly coupled with the other hip bone after passing through the middle portion of the second sacrum below the sacrum, thereby further improving the stability of the fixation, and the three fixing screws 3 may have a triangular fixing structure, thereby further improving the stability of the fixation.

As shown in fig. 3, the first fixing plate 1 and the second fixing plate 2 both include a fixing end 11 and an adjusting end 12, the fixing end 11 is disposed in a plate shape, and the first fixing hole 4 is disposed on the fixing end 11, specifically, the fixing end 11 can be a flat plate shape or a curved plate shape, so as to make the fixing end 11 more fit to the sacrum, in the present invention, the fixing stability can be further improved by fixing the plate-shaped fixing end 11 and the fixing screw 3, and the fixing screw 3 with a diameter of 6.5-7.3mm is usually adopted to satisfy the requirement of fixing structure strength in clinical practice, while the fixing screw 3 with a diameter of 4.5mm can satisfy the required fixing structure strength, when the fixing screw 3 is used for fixing, the fixing screw 3 with a larger diameter easily penetrates out of the pelvic bone to cause heavy bleeding and viscera injury, in the technical scheme, the fixing screw 3 with a smaller diameter is adopted, the injury that causes the pelvis when can effectual reduction set screw 3 installation to reduce the risk of heavy bleeding and internal organ damage, adjust end 12 and stiff end 11 and link to each other and be equipped with slide 5 sliding fit's slide rail 121, through slide 5 and slide rail 121 cooperation, thereby realize slide 5's slide adjusting.

The adjusting end 12 may be a U-shaped semi-ring, and includes two parallel slide rails 121, one end of each of the two slide rails 121 is fixedly connected to the fixing end 11, and the other end is connected to the fixing end through a connecting portion 122, the connecting portion 122 may be an arc or a straight bar, and during processing, the slide plate 5 may be slidably mounted on the slide rails 121, and then one end of each of the two slide rails 121 and the end of the fixing end 11 are fixed by welding.

The sliding adjustment structure of the sliding plate 5 and the sliding rail 121 can adopt various embodiments, specifically, as shown in fig. 4, in the first sliding adjustment embodiment of the sliding plate 5 and the sliding rail 121, the two side edges of the sliding plate 5 are respectively provided with a sliding chute 51 in sliding fit with the sliding rail 121, and the sliding chutes 51 on the two sides are respectively in sliding engagement with the two sliding rails 121, so that the sliding plate 5 is slidably mounted on the sliding rail 121.

In order to further improve the stability of the connection structure between the sliding groove 51 and the sliding rail 121, the sliding groove 51 may be a dovetail groove, and a sliding strip 123 slidably engaged with the dovetail groove is convexly disposed on the sliding rail 121.

As shown in fig. 5, in the second sliding adjustment embodiment of the sliding plate 5 and the sliding rail 121, two sides of the sliding plate 5 are provided with the convex strips 52, the sliding rail 121 is provided with the grooves 124 slidably engaged with the convex strips 52, and the sliding engagement between the sliding plate 5 and the sliding rail 121 is realized by the sliding engagement between the grooves 124 and the convex strips 52.

In order to improve the stability of the fixing screws 3 to the sliding plate 5, the second fixing holes 6 may include two hole sites, one of which is a threaded hole, the other is a tapered hole, the threaded hole and the tapered hole are both provided with the matched fixing screws 3, and the two fixing screws 3 are arranged in a crossed manner at a certain included angle when being mounted, so as to further improve the stability of the fixing.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. A sliding steel plate fixing structure for a posterior pelvic ring is characterized by comprising a first fixing plate (1), a second fixing plate (2) and three fixing screws (3), wherein the first fixing plate (1) and the second fixing plate (2) are respectively installed on one hip bone, one end of the first fixing plate (1) and one end of the second fixing plate (2) are respectively provided with a corresponding first fixing hole (4), one fixing screw (3) penetrates through the two first fixing holes (4) to enable the end part of the fixing screw to be fixed in the middle of a sacrum or penetrate through the middle of a sacrum to be fixed on the other hip bone, one end of the first fixing plate (1) and one end of the second fixing plate (2) are locked on one hip bone, and a sliding plate (5) is arranged at the other end of the first fixing plate (1) and the other end of the second fixing plate (2) in a sliding manner, the sliding plate (5) is provided with a second fixing hole (6), the sliding plate (5) can be slid to adjust the relative position between the second fixing hole (6) and the first fixing hole (4), the other two fixing screws (3) respectively penetrate through the second fixing holes (6) in the two sliding plates (5) and lock the two sliding plates (5), so that the other ends of the first fixing plate (1) and the second fixing plate (2) are fixed on the hip bone, wherein the end part of the fixing screw (3) installed at the other end of the first fixing plate (1) is fixed on a second sacral vertebra below the sacrum, and the end part of the fixing screw (3) installed at the other end of the second fixing plate (2) is fixed on the other hip bone.

2. The structure of claim 1, wherein the first fixing plate (1) and the second fixing plate (2) each comprise a fixing end (11) and an adjusting end (12), the fixing ends (11) are disposed in a plate shape, the first fixing holes (4) are disposed on the fixing ends (11), and the adjusting ends (12) are connected to the fixing ends (11) and provided with sliding rails (121) slidably engaged with the sliding plate (5).

3. The structure as claimed in claim 2, wherein the adjusting end (12) is in a U-shape and is in a half-ring shape, and comprises two parallel slide rails (121), one end of the two slide rails (121) is fixed to the fixing end (11), and the other end is connected to the fixing end through a connecting part (122).

4. The structure as claimed in claim 3, wherein the sliding plate (5) has sliding grooves (51) at its two side edges for sliding engagement with the sliding rails (121).

5. The structure for fixing the posterior pelvic ring sliding steel plate according to claim 4, wherein the sliding groove (51) is a dovetail groove, and the sliding rail (121) is convexly provided with a sliding strip (123) which is in sliding fit with the dovetail groove.

6. The structure as claimed in claim 2, wherein the sliding plate (5) has a protruding strip (52) on both sides thereof, and the sliding rail (121) has a groove (124) slidably engaged with the protruding strip (52).

7. The sliding steel plate fixing structure of the posterior pelvic ring according to claim 1, wherein the second fixing hole (6) comprises two holes, one of which is a threaded hole and the other is a tapered hole.

8. The structure of claim 1, wherein the first fixing hole (4) is a tapered hole.