CN214805284U - Calcaneal coronal compression device - Google Patents

Abstract

The utility model relates to an orthopedic surgical instrument, in particular to a calcaneus coronal compression device, which comprises handles, a rotating shaft and clamping rods, wherein the two handles are respectively connected with the two clamping rods, and the handles are crossed at the joint and are rotationally connected by the rotating shaft; the outer sides of the arc-shaped clamping pieces are connected to the movable ends of the corresponding clamping rods through reset connecting mechanisms; the upper end of the arc-shaped clamping piece is provided with a row of fastening line fixing holes, and the lower end of the arc-shaped clamping piece is provided with a row of through holes; a protruding shaft end is arranged on the outer side of the rotating shaft, and a pulley is sleeved at the shaft end; one of the handles is uniformly provided with a plurality of limiting columns; each fixing hole is provided with a fastening line, the movable end of each fastening line penetrates through the through hole and then is wound on the pulley, the movable end of each fastening line is provided with a fixing ring, and the movable end of each fastening line is fixed on the limiting column through the fixing ring after being wound on the pulley for multiple circles. The area of the binding surface of the compression device and the calcaneus crown is large, the compression is uniform and adjustable, and the compression requirement of the calcaneus crown can be met.

Description

Calcaneal coronal compression device

Technical Field

The utility model relates to an orthopedic surgery instrument, in particular to a calcaneus coronal compression device.

Background

Calcaneus fracture is one of common fracture types of trauma patients, and severe calcaneus fracture can cause intractable pain and dysfunction of feet due to traumatic arthritis and deformity healing of calcaneus, and seriously influences walking and life quality of patients.

The methods for treating calcaneus fractures can be divided into conservative treatment and operative treatment, and different treatment modes can be selected for different types of calcaneus fractures. The traditional fixation method of Steiner has good fracture reduction and fixation effects, and is one of the classic calcaneus reduction modes. In addition, the steel plate screw system is widely used for treating calcaneal fracture, however, each series of steel plate systems mainly aim at the fixation after fracture reduction, and instruments specially aiming at the reduction and fixation of the calcaneal fracture are lacked. The utility model provides an application number is 2013204905386's utility model provides a calcaneum restorer, this restorer can realize the pressurization of calcaneum basically and reset, however, to the position that this shape of calcaneum crown is special relatively, its suitability is not strong, the problem of unable load easily appears in the top of its draw-in groove part on the one hand, it is less to lead to its applied pressure, unsatisfied calcaneum crown pressurization demand, on the other hand then it inlays preceding tip and is the conch form, conch form middle part is unsettled, when calcaneum crown pressurizes, because pressurize the face unevenness, only marginal point contact can appear very probably, can't satisfy the pressurization demand.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, provide a calcaneum coronal position pressure device, it is big with calcaneum coronal position binding face area, and pressurizes evenly, adjustable, can satisfy calcaneum coronal position pressurization demand.

In order to achieve the above object, the utility model adopts the following technical scheme:

the calcaneus coronal compression device comprises handles, a rotating shaft and clamping rods, wherein the two handles are respectively connected with the two clamping rods, and the handles are crossed at the connecting part and are rotationally connected by the rotating shaft; the outer sides of the arc-shaped clamping pieces are connected to the movable ends of the corresponding clamping rods through reset connecting mechanisms; the upper end of the arc-shaped clamping piece is provided with a row of fastening line fixing holes, and the lower end of the arc-shaped clamping piece is provided with a row of through holes; a protruding shaft end is arranged on the outer side of the rotating shaft, and a pulley is sleeved at the shaft end; one of the handles is uniformly provided with a plurality of limiting columns; each fixing hole is provided with a fastening line, the movable end of each fastening line penetrates through the through hole and then is wound on the pulley, the movable end of each fastening line is provided with a fixing ring, and the movable end of each fastening line is fixed on the limiting column through the fixing ring after being wound on the pulley for multiple circles.

Preferably, all the fastening wires are locked by the receiving ring after passing through the through holes.

Preferably, the cross section of the fastening line is circular or rectangular.

Preferably, the fastening wire is a stainless steel wire.

Preferably, the arc-shaped clamping piece is a stainless steel clamping piece.

In detail, the reset connecting mechanism comprises a groove arranged at the outer side of the arc-shaped clamping piece and a rotating shaft connected with two side walls in the groove; and a connecting block sleeved outside the rotating shaft is arranged at a position above the clamping rod corresponding to the groove, and a return spring is arranged between two ends of the connecting block and the corresponding side wall of the groove.

More specifically, the reset spring is sleeved outside the rotating shaft, one end of the reset spring is fixed on the connecting block, and the other end of the reset spring is fixed on the corresponding side wall of the groove.

As a preferred scheme, the limiting column is mushroom-shaped.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an arc clamping piece and fastening line realize with the laminating of calcaneum coronal position, the binding face area is big, and pressurize evenly, adjustable, can satisfy calcaneum coronal position pressurization demand. And, the utility model discloses can improve on current device, it is little to improve the degree of difficulty, and is with low costs.

2. The utility model discloses the setting of arc clamping piece is compared in the clamping piece of conch form, and its structure is just easily with heel bone coronal position laminating, and the binding face is bigger to its deformation of own is great relatively, and when the most advanced of arc clamping piece and clamping bar junction atress difference are great, it is more not fragile.

3. The utility model can realize the tight joint with the calcaneus crown position at the middle part which is difficult to joint between the calcaneus crown position and the arc-shaped clamping piece when the utility model is tightened, and applies pressure to meet the pressurizing requirement; and, because the setting of spacing post, can realize the fine setting of the fastening line tightness degree of calcaneum coronal position different positions to satisfy the demand. At the darker department of calcaneum coronal position, because the most advanced atress of arc clamping piece is less, the pressurization is uneven, and through the taut effect of fastening line, not only can increase the binding face, can also press the most advanced of arc clamping piece to calcaneum coronal position, make whole device pressurization more even.

4. The fastening line of the utility model can directly select a fine line structure of stainless steel wire, and can also select a flat line to increase the area of the binding surface; in addition, the structure that the flat wire is arranged on the inner side of the arc-shaped clamping piece (namely the part to be jointed with the calcaneus crown) and the stainless steel wire is arranged on other parts can be selected. The fastening line is flexible to install and convenient to replace, can be directly and completely fixed in the fixing hole of the arc-shaped clamping piece, and can also be set in a mode of additionally arranging a limiting ring, a limiting strip, tying a dead knot and the like at the fixing hole on the back of the arc-shaped clamping piece.

5. The utility model discloses still set up and accomodate the ring, all fastening lines pass behind the perforating hole promptly and accomodate ring locking, are one with fastening line locking, and on rethread pulley after-fixing to spacing post, it is all more convenient to install and fasten to can also prevent that the fastening line is in disorder, and then prevent that solitary fastening line from tearing apart.

6. The utility model discloses the arc clamping piece meets through connection structure that resets and clamping bar, and its reset spring only can drive the most advanced small circle rotation of arc clamping piece when the fastening wire tightens up to make the most advanced position department of arc clamping piece demand that can pressurize.

Drawings

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

FIG. 2 is a schematic view of the outer side of the arc-shaped clamping piece of the present invention;

fig. 3 is an inner side schematic view of the arc-shaped clamping piece of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-handle, 11-spacing post, 2-rotating shaft, 3-clamping rod, 4-arc clamping piece, 41-fixing hole, 42-through hole, 43-rotating shaft, 44-reset spring and 5-fastening line.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

The embodiment provides a pressurization device for a calcaneus coronal position, which aims at a special part of the calcaneus coronal position to achieve the purposes of large pressurization surface and uniform pressurization.

Referring to fig. 1 to 3, the pressurization device for the calcaneus crown of the embodiment comprises a handle 1, a rotating shaft 2 and clamping rods 3, wherein the two handles are respectively connected with the two clamping rods, the handles are crossed at the joint and are rotatably connected by the rotating shaft. The improvement is mainly that the embodiment is additionally provided with two arc-shaped clamping pieces 4 and a fastening wire 5. Wherein, the whole device of this embodiment all adopts stainless steel material to make, comes to realize through arc clamping piece and fastening line with the laminating of calcaneum crown-shaped position, the binding face area is big, and the pressurization is even, adjustable, can satisfy calcaneum crown-shaped position pressurization demand. And, the utility model discloses can improve on current device, it is little to improve the degree of difficulty, and is with low costs.

Specifically, the outer side of the arc-shaped clamping piece is connected to the movable end of the corresponding clamping rod 3 through a reset connecting mechanism; the upper end of the arc-shaped clamping piece 4 is provided with a row of fastening line fixing holes 41, and the lower end of the arc-shaped clamping piece is provided with a row of through holes 42; a protruding shaft end is arranged on the outer side of the rotating shaft 2, and a pulley is sleeved at the shaft end; a plurality of limiting columns 11 are uniformly arranged on one handle 1; each fixing hole 41 is provided with a fastening line 5, the movable end of the fastening line passes through the through hole 42 and then is wound on the pulley, the movable end of the fastening line is provided with a fixing ring, and the movable end of the fastening line is fixed on the limiting column 11 through the fixing ring after being wound on the pulley for multiple circles. Wherein, the setting of arc clamping piece, compare in the clamping piece of shell form, its structure is just easily with heel bone coronal position laminating, the binding face is bigger to its deformation of self is great relatively, and when the most advanced of arc clamping piece and clamping bar junction atress difference are great, it is more not fragile. When the tightening line is tightened, the middle part which is difficult to be jointed between the coronal part of the calcaneus and the arc-shaped clamping piece can be tightly jointed with the coronal part of the calcaneus, pressure is applied, and the pressurizing requirement is met; and, because the setting of spacing post, can realize the fine setting of the fastening line tightness degree of calcaneum coronal position different positions to satisfy the demand. At the darker department of calcaneum coronal position, because the most advanced atress of arc clamping piece is less, the pressurization is uneven, and through the taut effect of fastening line, not only can increase the binding face, can also press the most advanced of arc clamping piece to calcaneum coronal position, make whole device pressurization more even.

The fastening line of the embodiment can directly select a fine line structure of a stainless steel wire, and can also select a flat line to increase the area of the binding surface; in addition, the structure that the flat wire is arranged on the inner side of the arc-shaped clamping piece (namely the part to be jointed with the calcaneus crown) and the stainless steel wire is arranged on other parts can be selected. The fastening line is flexible to install and convenient to replace, can be directly and completely fixed in the fixing hole of the arc-shaped clamping piece, and can also be set in a mode of additionally arranging a limiting ring, a limiting strip, tying a dead knot and the like at the fixing hole on the back of the arc-shaped clamping piece.

The limiting column 11 is arranged to be mushroom-shaped, the maximum diameter of the limiting column is slightly smaller than that of the fixing ring, when the fixing ring is sleeved on the limiting column 11, the fixing ring can be pulled upwards due to the fact that the fastening line is in a tight state, and therefore the mushroom-shaped limiting column cannot be separated.

This embodiment has still set up and has accomodate the ring, and all fastening lines 5 pass behind the perforating hole 42 promptly and accomodate the ring locking, are one with fastening line locking, and on fixed spacing post behind the rethread pulley, it is all more convenient to install and fasten to can also prevent that the fastening line from scattering in disorder, and then prevent solitary fastening line from tearing apart.

In detail, the reset connecting mechanism comprises a groove arranged at the outer side of the arc-shaped clamping piece 4 and a rotating shaft 43 connected with two side walls in the groove; and a connecting block sleeved outside the rotating shaft is arranged at a position above the clamping rod 3 corresponding to the groove, and a return spring 44 is arranged between two ends of the connecting block and the corresponding side wall of the groove. The return spring 44 is sleeved outside the rotating shaft 43, and one end of the return spring is fixed on the connecting block, and the other end of the return spring is fixed on the corresponding side wall of the groove. The arc clamping piece is connected with the clamping rod through the reset connecting structure, and the reset spring of the arc clamping piece can drive the tip of the arc clamping piece to rotate in a small range only when the fastening wire is tightened, so that the tip part of the arc clamping piece can meet the pressure requirement.

Claims (8)

1. The calcaneus coronal compression device comprises handles (1), a rotating shaft (2) and clamping rods (3), wherein the two handles are respectively connected with the two clamping rods, and the handles are crossed at the joint and are rotatably connected by the rotating shaft; the clamp is characterized by further comprising two arc-shaped clamping pieces (4) and a fastening wire (5), wherein the outer sides of the arc-shaped clamping pieces are connected to the movable ends of the corresponding clamping rods (3) through reset connecting mechanisms; the upper end of the arc-shaped clamping piece (4) is provided with a row of fastening line fixing holes (41), and the lower end of the arc-shaped clamping piece is provided with a row of through holes (42); a protruding shaft end is arranged on the outer side of the rotating shaft (2), and a pulley is sleeved at the shaft end; a plurality of limiting columns (11) are uniformly arranged on one handle (1); each fixing hole (41) is provided with a fastening line (5), the movable end of each fastening line passes through the through hole (42) and then is wound on the pulley, the movable end of each fastening line is provided with a fixing ring, and the movable end of each fastening line is fixed on the limiting column (11) through the fixing ring after being wound on the pulley for multiple circles.

2. The calcaneus coronal compression device of claim 1, further comprising a receiving ring, wherein all the fastening wires (5) are passed through the through holes (42) and then locked by the receiving ring.

3. Device for compression of the calcaneus coronal plane according to claim 1, wherein said fastening wire (5) is circular or rectangular in cross-section.

4. Device for compression of the calcaneus coronal position according to claim 1, characterized in that said fastening wire (5) is a stainless steel wire.

5. The device for compressing the calcaneus coronal compression device of any one of claims 1-4, wherein the arcuate clip (4) is a stainless steel clip.

6. The calcaneus coronal compression device as claimed in claim 5, wherein said reduction coupling mechanism comprises a groove disposed on the outside of the arcuate clip (4) and a rotation shaft (43) connected to two sidewalls of the groove; and a connecting block sleeved outside the rotating shaft is arranged at a position above the clamping rod (3) corresponding to the groove, and a return spring (44) is arranged between the two ends of the connecting block and the corresponding side wall of the groove.

7. Device for compressing the calcaneus coronal compression system as claimed in claim 6, wherein said return spring (44) is fitted around the rotating shaft (43) and is fixed at one end to the connecting block and at the other end to the corresponding side wall of the groove.

8. Device for compressing the calcaneus coronal compression device according to claim 6 or 7, wherein said stop post (11) is mushroom-shaped.

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