CN212939912U

CN212939912U - External fixing frame for fracture dislocation of first metacarpal base part

Info

Publication number: CN212939912U
Application number: CN202020482364.9U
Authority: CN
Inventors: 王征勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-06
Filing date: 2020-04-06
Publication date: 2021-04-13
Anticipated expiration: 2030-04-06

Abstract

The utility model discloses a first metacarpal basilar part fracture dislocation external fixation frame, include: the elastic bent sheet with an arc structure and two fixed clamping plates; two the solid fixed splint are located the both ends opening part outer wall of elasticity flexure respectively, two all run through the screw thread on the solid fixed splint and have connect adjusting screw soon, and adjusting screw's bottom is provided with the bulb, the outer wall of bulb is provided with the fastening clamping piece, and sets up on the fastening clamping piece with bulb roll connection's ball groove, two solid fixed splint's outer wall all is provided with the assembly piece, and the vertical end outer wall of assembly piece has seted up the assembly groove, and the inner wall of assembly groove inlays and is equipped with the handle of outside extension. The utility model discloses in, this external fixation frame adopts detachable construction's handle, conveniently carries out the switching operation to the external fixation frame, can not influence patient's normal life, also can play reinforced (rfd) effect to patient's fracture position simultaneously, the effectual recovered speed that improves the fracture position.

Description

External fixing frame for fracture dislocation of first metacarpal base part

Technical Field

The utility model relates to a medical care technical field especially relates to a first metacarpal basilar part fracture dislocation external fixation frame.

Background

The metacarpal bone is 5 pieces, is small-size long bone, is the 1 st ~ 5 th metacarpal bone by radius side ulna side in proper order, and the metacarpal bone also divides integrative both ends, and the proximal end is called the end, and is listed as the wrist bone looks joint with the distal side, and wherein first metacarpal bone end joint personally submits the saddle form, with the relevant festival of trapezium bone, the body is prismatic, slightly to dorsal side bending, the distal end is metacarpal bone microcephalus, is spherical, with the relevant festival of phalanx, when first metacarpal bone basilar part takes place the fracture, just need use the external fixation frame to carry out the centre gripping fixed to the fracture position to improve the recovered speed at fracture.

However, the existing external fixing frame for fracture of the base part of the first metacarpal bone usually adopts an integral structure design, and the external fixing frame cannot be disassembled and assembled, so that the exposed volume of the external fixing frame is large, and the normal life of a patient can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an external fixing frame for fracture dislocation of a metacarpal base part.

In order to achieve the above purpose, the utility model adopts the following technical scheme: first metacarpal base portion fracture dislocation external fixation frame includes: the elastic bent sheet with an arc structure and two fixed clamping plates;

the two fixing clamping plates are respectively positioned on the outer walls of the openings at the two ends of the elastic bent sheet;

adjusting screws are screwed on the two fixing clamp plates in a penetrating manner, the bottoms of the adjusting screws are provided with ball heads, the outer walls of the ball heads are provided with fastening clamping pieces, and ball grooves in rolling connection with the ball heads are formed in the fastening clamping pieces;

two the outer wall of solid fixed splint all is provided with the assembly piece, and the vertical end outer wall of assembly piece has seted up the assembly groove, and the inner wall of assembly groove inlays and is equipped with the handle of outside extension.

As a further description of the above technical solution:

the device also comprises a reserved groove;

the preformed groove is formed in the inner wall of the fixed clamping plate and is positioned on the outer side of the fastening clamping piece;

the width of the reserved groove is equal to the thickness of the fastening clamping piece;

the cross section areas of the preformed grooves are equal to the cross section areas of the fastening clamping pieces.

As a further description of the above technical solution:

the outer wall of the bottom of the fastening clamping piece is sleeved with a rubber sleeve, and the thickness of the rubber sleeve is smaller than that of the fastening clamping piece.

As a further description of the above technical solution:

the upper end of the inner wall of the assembling groove is provided with anti-falling grooves at equal intervals;

the upper end of the outer wall of the handle is equidistantly provided with anti-falling blocks;

the handle is connected with the assembling groove through the embedded clamping connection of the anti-falling block and the anti-falling groove.

As a further description of the above technical solution:

also comprises a lantern ring;

the lantern ring comprises becket and silica gel cover, and wherein, silica gel cover parcel is at the outer wall of becket, and becket articulates at the outer wall of handle.

As a further description of the above technical solution:

the outer wall of becket is provided with the lug that a plurality of equidistance distributes, and the cross-section of lug is the trapezium structure, and its length that is close to becket one side is greater than the length of keeping away from becket one side.

Advantageous effects

The utility model provides a first metacarpal basal part fracture dislocation external fixation frame. The method has the following beneficial effects:

(1): this external fixation frame adopts detachable construction's handle, can assemble into "clip" structure with the assembly of handle freedom on the external fixation frame, conveniently carries out the switching operation to the external fixation frame to can reduce the whole volume of external fixation frame after taking off the handle, can not influence patient's normal life.

(2): this external fixation frame adopts movable structure's fastening splint, makes it contact with patient's first metacarpal base portion fracture department under adjusting screw's drive, plays reinforced effect to patient's fracture position, has improved fracture position's recovered speed.

Drawings

Fig. 1 is a schematic view of the whole side view structure of the external fixing frame for fracture dislocation at the base of the first metacarpal bone provided by the utility model;

FIG. 2 is a schematic side view of the fixing splint according to the present invention;

FIG. 3 is a schematic structural view of the joint between the adjusting screw and the fastening clip of the present invention;

FIG. 4 is a schematic view of the explosion structure of the joint of the assembling block and the handle of the present invention;

fig. 5 is a schematic view of the internal structure of the middle sleeve ring according to the present invention.

Illustration of the drawings:

1. fixing the clamping plate; 11. reserving a groove; 12. an adjusting screw; 121. a ball head; 13. fastening the clamping piece; 131. a ball groove; 132. a rubber sleeve; 2. assembling the block; 21. assembling a groove; 22. a drop-proof groove; 3. a handle; 31. an anti-drop block; 4. an elastic bending sheet; 5. a collar; 51. a metal ring; 52. a silica gel sleeve; 53. and (4) a bump.

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.

As shown in fig. 1 to 5, the external fixator for fracture dislocation of the base of the first metacarpal bone comprises: the elastic bent piece 4 with an arc structure and two fixed splints 1;

the two fixed clamping plates 1 are respectively positioned on the outer walls of the openings at the two ends of the elastic bent sheet 4;

adjusting screws 12 are screwed on the two fixing clamp plates 1 in a penetrating manner, the bottoms of the adjusting screws 12 are provided with ball heads 121, the outer walls of the ball heads 121 are provided with fastening clamping pieces 13, and the fastening clamping pieces 13 are provided with ball grooves 131 in rolling connection with the ball heads 121;

the rubber sleeve 132 is sleeved on the outer wall of the bottom of the fastening clamping piece 13, and the thickness of the rubber sleeve 132 is smaller than that of the fastening clamping piece 13, so that a certain buffering effect can be achieved between the fastening clamping piece 13 and the fracture part;

the outer wall of two solid fixed splint 1 all is provided with assembly block 2, and assembly groove 21 has been seted up to the vertical end outer wall of assembly block 2, and the inner wall of assembly groove 21 inlays and is equipped with handle 3 outside extending.

In this embodiment, two handles 3 are respectively inserted into the assembly grooves 21 of two assembly blocks 2, so that the whole external fixation frame is in a "clip" state, the patient presses the two handles 3 to approach each other, and can drive the two fixation splints 1 to bear force outwards, at this time, the elastic bent piece 4 is squeezed and overturns towards one side of the handle 3, so as to open the two fixation splints 1, then the two fixation splints 1 are respectively clamped at the fracture part of the first metacarpal base part, the handle 3 is loosened to reset and rebound the elastic bent piece 4, so as to ensure that the two external fixation frames can be clamped and fixed at the fracture part of the first metacarpal base part, and the two handles 3 are pulled outwards, so as to reduce the whole volume of the external fixation frame, when the fracture part of the first metacarpal base part needs to be pressurized and clamped, the adjusting screw 12 is rotated anticlockwise, so that the adjusting screw 12 pushes the fastening clamping piece 13 to move, when the adjusting screw 12 is rotated continuously, the ball head 121 rotates in the ball groove 131, so as to push the fastening clip 13 to continuously apply pressure to the fracture part, thereby ensuring the clamping stability of the fracture part.

Still include the preformed groove 11, the preformed groove 11 is seted up at the inner wall of solid fixed splint 1 and is located the outside of fastening clamping piece 13, and the width of preformed groove 11 equals with the thickness size of fastening clamping piece 13, and the cross sectional area of preformed groove 11 equals for the cross sectional area size of fastening clamping piece 13.

In this embodiment, when need not use fastening clamping piece 13, fastening clamping piece 13 can retract into preformed groove 11 for the inner wall of solid fixed splint 1 is complete relatively, unevenness's phenomenon can not appear, thereby has avoided unevenness's structure to cause the phenomenon of secondary damage to patient's fracture position.

Anticreep groove 22 has been seted up to the inner wall upper end equidistance of mounting groove 21, and the outer wall upper end equidistance of handle 3 is provided with anticreep piece 31, through anticreep piece 31 and anticreep groove 22's embedded joint, is connected handle 3 and mounting groove 21.

In this embodiment, the outer wall diameter of handle 3 is less than the inner wall diameter of mounting groove 21, and when handle 3 inserted inside mounting groove 21 and press the operation, the ascending effort of one end meeting atress that lies in mounting groove 21 on the handle 3 for anticreep piece 31 on the handle 3 is fixed in embedding anticreep groove 22, thereby prevents that handle 3 from droing out in the mounting groove 21 when pressing excessively, has improved the operational safety of external fixation frame.

The handle is characterized by further comprising a lantern ring 5, wherein the lantern ring 5 is composed of a metal ring 51 and a silica gel sleeve 52, the outer wall of the metal ring 51 is wrapped by the silica gel sleeve 52, and the metal ring 51 is sleeved on the outer wall of the handle 3;

the outer wall of the metal ring 51 is provided with a plurality of projections 53 distributed at equal intervals, the cross section of each projection 53 is in a trapezoidal structure, and the length of one side of each projection 53 close to the metal ring 51 is greater than that of one side of each projection far away from the metal ring 51.

In this embodiment, when the collar 5 on the handle 3 is pressed, the finger can compress and deform downward toward the silicone sleeve 52, and at this time, the finger can contact the bump 53, so as to increase the friction force on the finger, thereby preventing the finger from falling off the hand when the handle 3 is pressed, and when the silicone sleeve 52 is not pressed, the silicone sleeve is in a normal state, so as to perform a wrapping and sealing treatment on the structure of the bump 53.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. First metacarpal base portion fracture dislocation external fixation frame which characterized in that includes: an elastic bent sheet (4) with an arc structure and two fixed clamping plates (1);

the two fixing clamping plates (1) are respectively positioned on the outer walls of openings at two ends of the elastic bent piece (4);

adjusting screws (12) are screwed on the two fixing clamp plates (1) in a penetrating manner, the bottoms of the adjusting screws (12) are provided with ball heads (121), the outer walls of the ball heads (121) are provided with fastening clamping pieces (13), and the fastening clamping pieces (13) are provided with ball grooves (131) in rolling connection with the ball heads (121);

two the outer wall of solid fixed splint (1) all is provided with assembly piece (2), and assembly groove (21) have been seted up to the vertical end outer wall of assembly piece (2), and the inner wall of assembly groove (21) inlays and is equipped with handle (3) outside extending.

2. The external fixator for fracture dislocation of metacarpal base according to claim 1, further comprising a pre-groove (11);

the preformed groove (11) is formed in the inner wall of the fixed clamping plate (1) and is positioned on the outer side of the fastening clamping piece (13);

the width of the preformed groove (11) is equal to the thickness of the fastening clamping piece (13);

the cross section area of the preformed groove (11) is equal to that of the fastening clamping piece (13).

3. The external fixator for first metacarpal base fracture dislocation according to claim 1, wherein the rubber sleeve (132) is sleeved on the outer wall of the bottom of the fastening clip (13), and the thickness of the rubber sleeve (132) is smaller than that of the fastening clip (13).

4. The external fixator for fracture dislocation at the base of metacarpal bone as claimed in claim 1, wherein the upper end of the inner wall of the assembling groove (21) is provided with anti-falling grooves (22) at equal intervals;

the upper end of the outer wall of the handle (3) is equidistantly provided with anti-falling blocks (31);

the handle (3) is connected with the assembling groove (21) through the embedded clamping connection of the anti-falling block (31) and the anti-falling groove (22).

5. The external fixator for fracture dislocation of metacarpal base according to claim 1, further comprising a collar (5);

the lantern ring (5) consists of a metal ring (51) and a silica gel sleeve (52), wherein the silica gel sleeve (52) wraps the outer wall of the metal ring (51), and the metal ring (51) is sleeved on the outer wall of the handle (3).

6. The external fixator for fracture dislocation of metacarpal base portion according to claim 5, wherein the external wall of said metal ring (51) is provided with a plurality of projections (53) distributed at equal intervals, and the cross section of the projections (53) is trapezoidal structure, and the length of the side close to the metal ring (51) is longer than the length of the side far from the metal ring (51).