CN210727820U - Intraoperative tool for correcting adult elbow inversion - Google Patents

Abstract

The utility model discloses an intraoperative tool for correcting adult elbow inversion, which comprises a bottom plate, wherein the upper side of the bottom plate is rotatably connected with a rotating plate, the right end of a mandril arranged in the bottom plate is movably connected with the side wall of the rotating plate, two sides of a placing plate arranged on the upper side of the bottom plate are fixedly connected with vertical plates, the vertical plates are respectively engaged and connected with a plurality of first screw rods, the inner ends of the first screw rods are respectively rotatably connected with a bone holding clamp, two sides of the upper surface of the rotating plate are respectively fixedly connected with a fixed seat, and two guide plates are rotatably connected on the fixed seat. The quality of the operation is improved.

Description

Intraoperative tool for correcting adult elbow inversion

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an intraoperative tool for correcting adult elbow varus.

Background

The elbow varus deformity is the most common late complication of fracture on the humeral ankle, the local dysplasia of the adult elbow varus is heavier compared with children, the humeral condyle needs to be cut for elbow varus treatment, at present, when the adult elbow varus is used for the humeral condyle osteotomy treatment, the osteotomy is generally carried out by contrasting an X sheet, the adopted method is to cut the X sheet according to the size of the osteotomy, then the X sheet is attached to the osteotomy position and cut along with the X sheet, but as the X sheet is in a paper sheet shape, and a bone saw is always fixed by a hand of a medical worker in the osteotomy process, the hand of the medical worker is fatigued to reduce the accuracy of the osteotomy due to long-time operation, the cutting angle is not fixed easily, both sides or front and back skew can be caused, the cut is irregular, the operation quality is reduced, and in the existing osteotomy operation, bone saws may mistakenly injure soft tissues causing secondary trauma to the patient, and therefore we propose an intra-operative tool for correcting adult elbow varus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intraoperative tool for correcting adult elbow varus to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an intraoperative tool for correcting adult elbow varus comprises a bottom plate, wherein a rotating plate is installed at the right end of the upper side of the bottom plate, a placing plate is installed in the middle of the upper side of the bottom plate, vertical plates are fixedly connected to two sides of the placing plate and positioned on the bottom plate, a plurality of first screw rods are meshed and connected to the vertical plates, bone holding clamps are rotatably connected to the inner ends of the first screw rods, and positioning columns are fixedly connected to clamping surfaces of the bone holding clamps;

the utility model discloses a swivel plate, including the upper surface of swivel plate, the upper surface of swivel plate is connected with the first slide, the lower side of fixing base is connected with the first slide, the upper surface of first slide is connected with the fixing base, it is connected with two baffles to rotate on the fixing base, the downside of fixing base and the inside that is located the swivel plate are opened there is the second spout, the inside of second spout is rotated and is connected with the second screw rod, the meshing has the second slider on the second screw rod, the both ends fixedly connected with bracing piece of second slider.

Preferably, a guide pillar is fixedly connected to the inner side wall of any guide plate on the same side, a lifting block is slidably sleeved on the outer side wall of the guide pillar through a first spring, a pressing plate is connected to the inner side wall of the lifting block, and a swinging block is slidably connected to the inside of the lifting block through a second spring.

Preferably, the bottom surface of the rotating plate is provided with a rotating shaft and is rotatably inserted into a slot formed in the bottom surface of the bottom plate, two sides of the inner part of the bottom plate are connected with ejector rods in a meshed mode, the right end of each ejector rod is movably connected with the side wall of the rotating plate, and the left end of each ejector rod penetrates through the side wall of the bottom plate and extends to the outer portion of the bottom plate.

Preferably, hold the bone clamp and include first bone clamp and second bone clamp, just second bone clamp upside fixedly connected with slider, slider sliding connection is in the inside of first bone clamp.

Preferably, the first screw rod is meshed with a sleeve fixedly connected to the inner side face of the vertical plate, and the inner end of the first screw rod is rotatably connected with the first bone clamp or the second bone clamp through a bearing.

Preferably, the outer ends of the ejector rod, the first screw rod and the second screw rod are fixedly connected with rotating handles.

Preferably, the outer side wall of the guide plate is provided with scales.

Preferably, the upper side surface of the swinging block is provided with teeth.

Preferably, an angle ruler is arranged on the outer side wall of the fixed seat.

Preferably, the pressing plate is detachably connected with the lifting block, and the pressing plate is an arc-shaped plate with a downward radian.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a rotate first screw rod can make hold the bone clamp to fix patient's upper arm bone on the device, can prevent the skew in bone saw side position through the removal track that forms a bone saw blade between two baffle of homonymy, make the commentaries on classics board rotate on the bottom plate through rotating the ejector pin, and can make the second slider slide in the inside of second spout through rotating the second screw rod, make the bracing piece push against the baffle and rotate on the fixing base, the both sides of two baffle of homonymy and inclination around can change, the angle of bone saw when can adjusting the osteotomy, can change the angle of cutting according to the actual conditions that the patient's elbow is turned over in like this, thereby make the more accurate and regular of incision angle of cutting, the quality of operation has been improved; and when the bone saw moves downwards from between the two guide plates, the lifting block can also slide downwards, so that the pressing plate presses soft tissues of a patient to move downwards, the phenomenon that the bone saw accidentally injures the soft tissues is avoided, and the effect of protecting surrounding tissues is achieved.

Drawings

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

fig. 2 is a schematic view of an intraoperative simulation structure of the present invention;

FIG. 3 is a schematic structural view of the fixing base, the guide plate and the angle ruler of the present invention;

fig. 4 is an enlarged view of fig. 3 a according to the present invention;

fig. 5 is a cross-sectional view of the second sliding groove, the second sliding block and the supporting rod of the present invention;

FIG. 6 is an exploded view of the bone holding clip of the present invention;

fig. 7 is an exploded view of the bottom plate and the rotating plate of the present invention;

FIG. 8 is a schematic structural view of the guide plate and the perforated plate of the present invention;

FIG. 9 is a schematic view of a normal elbow joint valgus angle X-ray film of the present invention;

FIG. 10 is a schematic view of a malformed X-ray image with an elbow varus angle of about 14 according to the present invention;

FIG. 11 is a schematic X-ray image of the portable angle of the elbow joint of the present invention for postoperative recovery;

fig. 12 is a schematic diagram of a cut with a simulated osteotomy angle of 34 ° in accordance with the present invention.

In the figure: 1. the bottom plate, 2, the rotating plate, 3, the ejector pin, 4, the riser, 5, first screw rod, 6, hold the bone clamp, 601, first bone clamp, 602, the second bone clamp, 7, the turning handle, 8, the slider, 9, the reference column, 10, the fixing base, 11, the guide plate, 12, the second spout, 13, the second screw rod, 14, the second slider, 15, the bracing piece, 16, the third spout, 17, the angle ruler, 18, place the board, 19, the guide pillar, 20, first spring, 21, the elevator, 22, the second spring, 23, swing piece, 24, clamp plate, 25, the board that punches, 26, the through-hole, 27, pivot, 28, the sleeve, 29, the heavy groove, 30, the constant head tank, 31, the groove of stepping down.

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.

Referring to fig. 1-12, the present invention provides a technical solution: the utility model provides an instrument in art for correcting adult elbow enstrophe, includes bottom plate 1, commentaries on classics board 2 is installed to the upside right-hand member of bottom plate 1, the upside middle part fixedly connected with of bottom plate 1 places board 18, place board 18 be with bottom plate 1 swing joint, and the left end extends to the top of commentaries on classics board 2, plays the effect of supporting patient's arm, and is specific the upside of bottom plate 1 is equipped with a plurality of constant head tanks 30, constant head tank 30 with place the roof piece activity joint that board 18 bottom surface set up to the clearance is conveniently dismantled.

The two sides of the placing plate 18 are fixedly connected with vertical plates 4 on the bottom plate 1, the vertical plates 4 are respectively connected with a plurality of first screws 5 in a meshing manner, the inner ends of the first screws 5 are respectively connected with a bone holding clamp 6 in a rotating manner, the clamping surfaces of the bone holding clamps 6 are respectively and fixedly connected with positioning columns 9, sleeves 28 with certain lengths extend out of the inner side walls of the vertical columns 4 to play a role in stably supporting and meshing the first screws 5, so that the humerus to be held is more stable, the specific bone holding clamp 6 can adopt a form of combining a first bone clamp 601 and a second bone clamp 602, a slide block 8 is fixedly connected to the upper side of the second bone clamp 602, the slide block 8 is slidably connected inside the first bone clamp 601 (as shown in figure 6), a 10cm incision is cut at the humerus position by a scalpel in an operation to expose the humerus of a patient, a plurality of opposite holes are drilled at the two sides of the humerus, then, the first screw 5 is rotated to contract the clamping ports of the corresponding first bone clamp 601 and the second bone clamp 602 until the positioning column 9 on the bone holding clamp 6 is inserted into the hole of the humerus, and the humerus is fixed on the device, in order to realize that the rotation of the first screw 5 does not drive the bone holding clamp 6 to rotate, the inner end of the first screw 5 is rotatably connected with the first bone clamp 601 or the second bone clamp 602 through a bearing, and certainly, other forms of rotary connection can also be adopted, for example, a form of a T-shaped bump and a T-shaped groove can be adopted to realize the rotary connection;

the two sides of the upper surface of the rotating plate 2 are fixedly connected with a fixed seat 10, the fixed seat 10 is rotatably connected with two guide plates 11, a gap is arranged between the two guide plates 11 on the same side, the gap is about the thickness of a saw blade of the bone saw, so that the two guide plates 11 on the same side are respectively provided with one end of the bone saw, the bone saw can only move along the side wall direction of the guide plates 11, the cut wedge-shaped bone is more regular, the angle of the left and right directions is prevented from being inclined, the side wall of each guide plate 11 is provided with a scale which is the measurement of the length unit (as shown in figure 8), the downward movement length of the bone saw can be clearly observed by medical personnel, the operation is more smooth in an auxiliary manner, a second sliding groove 12 is arranged on the lower side of the fixed seat 10 and inside the rotating plate 2, a second screw 13 is rotatably connected inside the second sliding groove 12, and a second sliding block 14 is, two ends of the second sliding block 14 are fixedly connected with supporting rods 15, the supporting rods 15 are L-shaped, so that the guide plate 11 is prevented from interfering when rotating, the upper end of the supporting rod 15 is connected inside a third sliding groove 16 in a sliding mode through a shaft, the third sliding groove 16 is formed inside the guide plate 11, a second screw 13 is rotated, the second screw 13 drives the second sliding block 14 to slide inside the second sliding groove 12, therefore, the second sliding block 14 drives the two supporting rods 15 to slide, when sliding, the upper end of the supporting rod 15 can slide inside the third sliding groove 16, and meanwhile, the upper end of the supporting rod 15 drives the two guide plates 11 to swing in parallel, so that the effect of changing the osteotomy angle is achieved.

Specifically, a guide post 19 is fixedly connected to the inner side wall of any one of the guide plates 11 on the same side, the guide post 19 can enable the lifting block 21 to horizontally slide only along the direction of the guide plate 11, the outer side wall of the guide post 19 is slidably sleeved with the lifting block 21 through a first spring 20, the inner side wall of the lifting block 21 is connected with a pressing plate 24, the inside of the lifting block 21 is slidably connected with a swinging block 23 through a second spring 22, the inner side walls of the two guide plates 11 on the same side are both provided with an abdicating groove 31 to increase space for installation of the guide post 19 and movement of the lifting block 21, the upper surface of the swinging block 23 is provided with teeth matched with the teeth of the bone saw, the teeth on the lower sides of the two ends of the bone saw are respectively contacted and clamped with the teeth of the two swinging blocks 23, the bone saw is continuously swung when moving downwards, so that when the bone saw is swung, the two swinging blocks 23 can swing with the, thereby elevator 21 can take clamp plate 24 to move down, clamp plate 24 is pressing the soft tissue downwards, make and form certain clearance between patient's soft tissue and the bone saw, avoid the bone saw to damage the soft tissue, can protect surrounding tissue, when the bone saw is not to swing piece 23 application pressure, elevator 21 can slide to the top of guide pillar 19 through the effect of the reset of first spring 20 elasticity, consequently clamp plate 24 will no longer press patient's soft tissue, and be connected for dismantling between clamp plate 24 and the elevator 21, for example can adopt forms such as screw fixation, thereby can select the clamp plate 24 that adapts to the model specification according to patient's the different conditions, just clamp plate 24 is the decurrent arc of radian.

In addition, in order to facilitate the implantation of the steel nail in the operation, the upper side of the placing plate 18 is provided with a perforated plate 25, two ends of the perforated plate 25 are movably clamped with the sinking grooves 29 arranged on the two guide plates 11 at two sides respectively, the middle part of the perforated plate 25 is provided with a plurality of through holes 26, after the osteotomy end is closed, two ends of the perforated plate 25 are placed on the side walls of the guide plates 11, and after the osteotomy end is perforated through the through holes 26, the subsequent fixation of the implanted steel plate is facilitated.

Specifically, the outer side wall of the fixed seat 10 is provided with an angle ruler 17, the angle ruler 17 is used for measuring the angle of the guide plate 11, the shape is semicircular, the midpoint of the angle ruler 17 is 0 degree, the left side of the middle part of the angle ruler 17 is positive, the right side of the middle part of the angle ruler is negative, and when the guide plate 11 is located at the midpoint of the angle ruler 17, the angle of the guide plate is 0 degree, so that the cutting angle can be adjusted rapidly.

In addition, the bones of some patients are not straight, or the cutting angle needs to be adjusted longitudinally, that is, an included angle is formed between the rotating plate 2 and the bottom plate 1, so that the bottom surface of the rotating plate 2 is provided with a rotating shaft 27 and is rotatably inserted into a slot arranged on the bottom surface of the bottom plate 1, two sides inside the bottom plate 1 are engaged and connected with the ejector rods 3, the right ends of the ejector rods 3 are movably connected with the side wall of the rotating plate 2, the left ends of the ejector rods 3 penetrate through the side wall of the bottom plate 1 and extend to the outside of the bottom plate, when the two ejector rods 3 are rotated to different directions, the two ejector rods 3 can slide on the bottom plate 1 to different directions, so that the ejector rods 3 sliding leftwards can push the rotating plate 2 to rotate the rotating plate 2 on the bottom plate 1, the device on the rotating plate 2 can adjust the angle with the humerus of the patient along with the rotation of the rotating plate 2, the angle of osteotomy is more accurate, the outer ends of the ejector rod 3, the first screw rod 5 and the second screw rod 13 are fixedly connected with the rotating handle 7, and the ejector rod 3, the first screw rod 5 and the second screw rod 13 can be conveniently rotated by the aid of the rotating handle 7.

The working principle is as follows: the valgus angle of the elbow joint, also called the carry angle, of the normal elbow joint is about 20 (as shown in figure 9). Taking a patient as an example, when the left elbow is injured in a young period, the medial humeral condyle develops slowly, and an elbow varus deformity occurs, and the varus angle is about 14 degrees (as shown in fig. 10), so that the planned osteotomy angle of the patient is 34 degrees according to the difference between the two angles, namely, the osteotomy angle of the wedge-shaped closed osteotomy with the 34 degrees on the left humeral condyle is performed, so that the left side reaches the eversion angle consistent with the right side, the bone can be cut once by a bone saw at the middle point (namely, the 0 degree position) of the angle ruler 17 at the guide plate 11, then the guide plate 11 is rotated, the guide plate 11 is rotated leftwards to the 34 degrees position of the angle ruler 17, and then the bone is cut once again, so that the wedge-shaped osteotomy with the 34 degrees can be cut, the convenience and the cut size can be more accurate (as shown in fig. 11, an X-ray film.

When in use, the base plate 1 is fixed on an operating table by bolts, then the arm of a patient is placed on the placing plate 18, the humerus of the patient is exposed by cutting the humerus by a surgical knife by a cut of about 10cm, a plurality of opposite holes are drilled on two sides of the humerus, then the first screw rod 5 is rotated to shrink the clamping opening of the bone holding clamp 6 until the positioning column 9 on the bone holding clamp 6 is inserted into the hole of the humerus, and the humerus is fixed on the device; rotating ejector pin 3, make and change board 2 and rotate on bottom plate 1, the angle of 11 both sides of baffle can be adjusted like this, and can make baffle 11 rotate on fixing base 10 through rotating second screw rod 13, baffle 11 with both sides passes through bevel protractor 17 with the angle rotation to a certain angle like this, then the bone saw can follow and move down between the baffle 11 and cut the bone, two baffles 11 all have the effect of centre gripping to the bone saw, the bone saw just can only move down along the clearance between two baffles 11 and the situation that the slope can not appear takes place like this, during the osteotomy, the bone saw need carry out the osteotomy of twice different angles, so that cut out wedge bone piece, closed osteotomy end after the wedge bone piece takes out, put the both ends of punching plate 25 on the lateral wall of baffle 11, punch the back to the osteotomy end through-hole 26, it is fixed to implant the steel sheet.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An intra-operative tool for correcting adult elbow inversion, comprising a base plate (1), characterized in that: the bone clamping device is characterized in that a rotating plate (2) is installed at the right end of the upper side of the bottom plate (1), a placing plate (18) is installed in the middle of the upper side of the bottom plate (1), vertical plates (4) are fixedly connected to the two sides of the placing plate (18) and located on the bottom plate (1), a plurality of first screw rods (5) are meshed and connected to the vertical plates (4), bone holding clamps (6) are rotatably connected to the inner ends of the first screw rods (5), and positioning columns (9) are fixedly connected to the clamping surfaces of the bone holding clamps (6);

the equal fixedly connected with fixing base (10) in upper surface both sides of commentaries on classics board (2), it is connected with two baffle (11) to rotate on fixing base (10), the downside of fixing base (10) and the inside that is located commentaries on classics board (2) are opened there is second spout (12), the inside of second spout (12) is rotated and is connected with second screw rod (13), the meshing has second slider (14) on second screw rod (13), both ends fixedly connected with bracing piece (15) of second slider (14), the upper end sliding connection of bracing piece (15) is in the inside of third spout (16), the inside at baffle (11) is opened in third spout (16).

2. An intra-operative tool for correcting adult elbow varus according to claim 1, wherein: the guide post mechanism is characterized in that a guide post (19) is fixedly connected to the inner side wall of any guide plate (11) on the same side, a lifting block (21) is sleeved on the outer side wall of the guide post (19) in a sliding mode through a first spring (20), a pressing plate (24) is connected to the inner side wall of the lifting block (21), and a swinging block (23) is connected to the inside of the lifting block (21) in a sliding mode through a second spring (22).

3. An intra-operative tool for correcting adult elbow varus according to claim 1, wherein: the bottom surface of commentaries on classics board (2) is equipped with pivot (27) and rotates in the slot that grafting bottom plate (1) bottom surface set up, the inside both sides meshing of bottom plate (1) is connected with ejector pin (3), the right-hand member of ejector pin (3) and the lateral wall swing joint who changes board (2), the left end of ejector pin (3) runs through the lateral wall of bottom plate (1) and extends to its outside.

4. An intra-operative tool for correcting adult elbow varus according to claim 1, wherein: hold bone clamp (6) including first bone clamp (601) and second bone clamp (602), just second bone clamp (602) upside fixedly connected with slider (8), slider (8) sliding connection is in the inside of first bone clamp (601).

5. An intra-operative tool for correcting adult elbow varus according to claim 4, wherein: the first screw rod (5) is meshed with a sleeve (28) fixedly connected to the inner side face of the vertical plate (4), and the inner end of the first screw rod (5) is rotatably connected with the first bone clamp (601) or the second bone clamp (602) through a bearing.

6. An intra-operative tool for correcting adult elbow varus according to claim 3, wherein: the outer ends of the ejector rod (3), the first screw rod (5) and the second screw rod (13) are fixedly connected with rotating handles (7).

7. An intra-operative tool for correcting adult elbow varus according to claim 1, wherein: the outer side wall of the guide plate (11) is provided with scales.

8. An intra-operative tool for correcting adult elbow varus according to claim 2, wherein: the upper side surface of the swinging block (23) is provided with teeth.

9. An intra-operative tool for correcting adult elbow varus according to claim 1, wherein: and the outer side wall of the fixed seat (10) is provided with an angle ruler (17).

10. An intra-operative tool for correcting adult elbow varus according to claim 2, wherein: the pressing plate (24) is detachably connected with the lifting block (21), and the pressing plate (24) is an arc-shaped plate with a downward radian.

Images