CN211834667U

CN211834667U - Femoral neck fracture reduction device

Info

Publication number: CN211834667U
Application number: CN202020121472.3U
Authority: CN
Inventors: 林振恩
Original assignee: Fuzhou Second Hospital
Current assignee: Fuzhou Second Hospital
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-11-03
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a femoral neck fracture resetting means, including first mount and second mount, the one end of first mount is connected with first connecting rod through the bulb is vice, and the one end of second mount is connected with the second connecting rod through the bulb is vice, rotate between first connecting rod and the second connecting rod and connect and lock, but be provided with rotation regulation's bone nail anchor clamps on first mount and the second mount respectively, still be provided with the drive mechanism of horizontal regulation bone nail anchor clamps on first mount and the second mount respectively. The femoral neck fracture reduction device can maintain the temporary fixation of fracture and is simple and convenient to reduce.

Description

Femoral neck fracture reduction device

Technical Field

The utility model relates to a femoral neck fracture resetting device.

Background

The fracture needs to be fixed and reset in the medical care process, but the situation of bad reset position sometimes happens in the reset process, if the fracture is not treated in time, the fracture part can be caused to deform after the bone is recombined, and the like. In case of fracture of femoral neck, the included angle between the femoral head nail and the extension line of the femoral shaft nail is generally acute, and the existing fracture reduction device can not be applied to the fracture. For this reason, a femoral neck fracture reduction device is required.

Disclosure of Invention

An object of the utility model is to provide a femoral neck fracture resetting means, this femoral neck fracture resetting means can maintain the interim fixed of fracture, and it is simple and convenient to reset.

The technical scheme of the utility model lies in: the utility model provides a femoral neck fracture resetting means, includes first mount and second mount, the one end of first mount is connected with first connecting rod through the bulb is vice, and the one end of second mount is connected with the second connecting rod through the bulb is vice, rotate between first connecting rod and the second connecting rod and connect and lock, but be provided with rotation regulation's bone nail anchor clamps on first mount and the second mount respectively, still be provided with the drive mechanism of horizontal regulation bone nail anchor clamps on first mount and the second mount respectively.

Furthermore, a locking bolt penetrates through the other end of the first connecting rod, and the locking bolt is in threaded connection with the other end of the second connecting rod.

Furthermore, the traction mechanism comprises transverse sliding grooves which are respectively arranged on the first fixing frame and the second fixing frame, sliding blocks which are in sliding fit with the transverse sliding grooves are arranged in the transverse sliding grooves, traction pieces which pull the sliding blocks to move transversely are respectively arranged on the first fixing frame and the second fixing frame, and the bone nail clamp is arranged on the sliding blocks.

Furthermore, the traction piece is an adjusting bolt, and the adjusting bolt is rotatably connected with the outer side end of the first fixing frame or the second fixing frame and penetrates through the transverse sliding groove to be in threaded connection with the sliding block.

Furthermore, the upper portion of slider is provided with the annular flange that is located first mount or second mount upside, and the lower extreme of slider has the gasket that is located first mount or second mount downside through the screw connection.

Further, the adjusting bolt is a hexagon socket head cap screw.

Further, the bone nail anchor clamps include punch holder and lower plate, it forms the arc recess in bone nail clamp hole to correspond to be provided with to cooperate between the downside of punch holder and the last side of lower plate, the vertical screw rod that passes punch holder and lower plate that is provided with on the slider, the upper portion spiro union of screw rod has the lock nut who is used for locking punch holder and lower plate.

Furthermore, matched anti-slip tooth surfaces are arranged on the lower side surface of the lower clamping plate and the upper side surface of the sliding block.

Furthermore, a plurality of radial bone nail clamp holes are arranged between the upper clamping plate and the lower clamping plate at intervals along the circumferential direction.

Further, the bone nail matched with the bone nail clamp hole is an elongated 3.0 threaded Steiner.

Compared with the prior art, the utility model has the advantages of it is following: the bone nail clamp hole arranged on the femoral neck fracture reduction device is convenient for installing the bone nail; and in the femoral neck fracture reduction device, the ball heads at the two ends of the first connecting rod and the second connecting rod and the hinging of the first connecting rod and the second connecting rod are more suitable for adjusting the direction and the angle under the condition that the two bone nails form an acute angle. If the fracture reduction is not good, the positions of the first fixing frame and the second fixing frame can be directly adjusted through the ball head pairs of the first connecting rod and the second connecting rod and the first connecting rod and the second connecting rod in a hinged mode, and the operation is simple and convenient; meanwhile, the fracture reduction bracket can avoid ray operation when in use, the fracture reduction is direct, the temporary fixation of the fracture can be maintained, the reduction is simple and convenient, and the operation process is flexible.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the fixing frame of the present invention;

fig. 3 is a cross-sectional view of the fixing frame of the present invention;

FIG. 4 is a schematic view of the upper or lower clamping plate of the present invention;

in the figure: 10-a first fixing frame 20-a second fixing frame 30-a first connecting rod 40-a second connecting rod 50-a bone nail clamp 51-an upper clamping plate 52-a lower clamping plate 53-a bone nail clamping hole 54-an arc-shaped groove 55-a locking nut 56-an anti-skid tooth surface 61-a transverse sliding groove 62-a sliding block 63-an adjusting bolt 64-an annular flange 65-a gasket 66-a screw 67-a screw.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 4

The utility model provides a femoral neck fracture resetting means, includes first mount 10 and second mount 20, the one end of first mount is connected with first connecting rod 30 through the bulb is vice, and the one end of second mount is connected with second connecting rod 40 through the bulb is vice, rotate between first connecting rod and the second connecting rod and connect and lock, but be provided with rotation regulation's bone nail anchor clamps 50 on first mount and the second mount respectively, still be provided with the drive mechanism of horizontal regulation bone nail anchor clamps on first mount and the second mount respectively.

In this embodiment, a locking bolt 31 is disposed at the other end of the first connecting rod in a penetrating manner, and the locking bolt is screwed with the other end of the second connecting rod, so that an included angle between the first fixing frame 10 and the second fixing frame is adjusted by rotation of the first connecting rod and the second connecting rod, an acute angle is formed between extension lines of the first fixing frame and the second fixing frame, and the angle is fixed by the locking bolt.

In this embodiment, traction mechanism is including setting up horizontal spout 61 on first mount and second mount respectively, be provided with in the horizontal spout rather than sliding fit's slider 62, first mount and second mount still are provided with respectively and pull the piece that pulls slider lateral shifting, bone nail anchor clamps are installed on the slider, and bone nail anchor clamps rotate with the slider to be connected and accomplish the locking through lock nut. Thereby adjusting the position of the bone nail clamps and the distance between the two bone nail clamps through the traction mechanism.

In this embodiment, the traction member is an adjusting bolt 63, the adjusting bolt is rotatably connected with the outer side end of the first fixing frame or the second fixing frame and penetrates through the transverse sliding groove to be screwed with the sliding block, and the adjusting bolt is an inner hexagon bolt, so that the position of the sliding block can be adjusted by rotating the adjusting bolt, and the position of the bone nail clamp can be adjusted.

In this embodiment, the upper portion of the slider is provided with an annular flange 64 located on the upper side of the first fixing frame or the second fixing frame, and the lower end of the slider is connected with a gasket 65 located on the lower side of the first fixing frame or the second fixing frame through a screw 67. Therefore, the sliding block can be limited on the transverse sliding grooves of the first fixing frame and the second fixing frame, and the situation of deviation in the using process is prevented.

In this embodiment, the bone nail anchor clamps include punch holder 51 and lower plate 52, correspond between the downside of punch holder and the last side of lower plate and be provided with the arc recess 54 that cooperatees and form bone nail clamp hole 53, two arc recesses are oval when pressing from both sides tightly to the clamp of bone nail is realized to better cooperation. A screw 66 penetrating through the upper clamping plate and the lower clamping plate is vertically arranged on the sliding block, and a locking nut 55 for locking the upper clamping plate and the lower clamping plate is screwed on the upper part of the screw. Therefore, when the bone nail clamp is adjusted, the bone nail clamp is locked through the locking nut.

In this embodiment, mating anti-slip tooth surfaces 56 are provided on the lower side of the lower clamping plate and the upper side of the slider. Thereby prevent that the in-process of locking bone nail anchor clamps, or clinical use in-process bone nail anchor clamps from taking place rotatory skew, effectively guarantee the position of bone nail anchor clamps.

In this embodiment, be provided with the radial bone nail clamp hole of a plurality of along the circumferencial direction interval between upper plate and the lower plate, the rotation regulation of cooperation bone nail anchor clamps for the adjustment of the different angles of use that bone nail anchor clamps can be better. When the bone nail is clamped, the fixed end of the bone nail only needs to extend into the bone nail clamping hole, and the locking of the bone nail can be completed by locking the upper clamping plate and the lower clamping plate.

In this embodiment, the bone nail used in cooperation with the bone nail clamp hole is a lengthened 3.0 screw-threaded Stewart pin.

When the femoral neck fracture reduction device is used, the direction and the angle can be adjusted under the condition that two bone nails form an acute angle through the ball heads at the two ends of the first connecting rod and the second connecting rod and the first connecting rod and the second connecting rod which are hinged and locked mutually.

In the use process of the femoral neck fracture reduction device, the two Steiner needles which are fixed at the proximal folding end of the femoral head by the crossed threading needles in the operation process are included, and the Steiner needles of the external part are connected and fixed into an integral structure by a bone nail clamp. When the femoral neck fracture reduction device is used, a needle is inserted from a muscle gap to avoid femoral artery, femoral vein and bone nerve; then the patient is placed on an operating bed, after the percutaneous cross puncture needle is fixed on the femoral head and the femoral shaft, the medical staff controls the proximal fracture alignment distal fracture end of the femoral head through the bone nail clamp, and finely adjusts the front and back displacement direction of the femoral head by means of the adjusting bolt, so that the anatomical reduction is achieved, the fracture position after reduction can be maintained, the nail placement is facilitated, and the operation process is flexible.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a femoral neck fracture resetting means, includes first mount and second mount, its characterized in that, the one end of first mount is connected with first connecting rod through the bulb is vice, and the one end of second mount is connected with the second connecting rod through the bulb is vice, rotate between first connecting rod and the second connecting rod and connect and lock, but be provided with rotation regulation's bone nail anchor clamps on first mount and the second mount respectively, still be provided with the drive mechanism of horizontal regulation bone nail anchor clamps on first mount and the second mount respectively.

2. A femoral neck fracture reduction device according to claim 1, wherein a locking bolt is arranged through the other end of the first link, and the locking bolt is in threaded connection with the other end of the second link.

3. A femoral neck fracture reduction device according to claim 1 or 2, wherein the traction mechanism comprises a transverse sliding groove respectively arranged on the first fixing frame and the second fixing frame, a sliding block in sliding fit with the transverse sliding groove is arranged in the transverse sliding groove, the first fixing frame and the second fixing frame are respectively provided with a traction piece for drawing the sliding block to move transversely, and the bone nail clamp is arranged on the sliding block.

4. A femoral neck fracture reduction device according to claim 3, wherein the traction member is an adjusting bolt which is rotatably connected with the outer side end of the first fixing frame or the second fixing frame and penetrates through the transverse sliding groove to be in threaded connection with the sliding block.

5. A femoral neck fracture reduction device according to claim 3, wherein the upper part of the slider is provided with an annular flange positioned at the upper side of the first fixing frame or the second fixing frame, and the lower end of the slider is connected with a gasket positioned at the lower side of the first fixing frame or the second fixing frame through a screw.

6. A femoral neck fracture reduction device according to claim 4, wherein the adjustment bolt is a socket head cap screw.

7. A femoral neck fracture reduction device according to claim 3, wherein the bone nail clamp comprises an upper splint and a lower splint, an arc-shaped groove which is matched with the upper side surface of the upper splint to form a bone nail clamping hole is correspondingly arranged between the lower side surface of the upper splint and the upper side surface of the lower splint, a screw rod which passes through the upper splint and the lower splint is vertically arranged on the slide block, and a locking nut for locking the upper splint and the lower splint is screwed on the upper part of the screw rod.

8. A femoral neck fracture reduction device according to claim 7, wherein cooperating anti-slip tooth surfaces are provided on the lower side of the lower splint and on the upper side of the slider.

9. A femoral neck fracture reduction device according to claim 7 or 8, wherein a plurality of radial nail hole are provided between the upper and lower splints at intervals along the circumferential direction.

10. A femoral neck fracture reduction device according to claim 7, wherein the bone screw with which the bone screw clamp hole is fitted is an elongate 3.0 threaded Steiner.