阅读说明：本技术 一种胸骨撑开器 (Sternum spreader ) 是由 沈春健 高顺 刘超 南洋 付嘉玉 李飞 车艳 吴文哲 孟祥宇 何旭 姚健 王程 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种胸骨撑开器,包括矩形滑框,所述矩形滑框的内侧壁前后对称且滑动连接有L形滑箱,两个所述L形滑箱内均设有撑开机构,所述矩形滑框的内侧壁中部设有配合所述L形滑箱使用的距离调节机构,所述矩形滑框的后端设有动脉插管固定机构,所述矩形滑框的的下侧设有支撑结构,所述撑开机构用于撑开胸部创口,所述距离调节机构用于调整两个所述撑开机构之间的距离,所述动脉插管固定机构用于固定动脉插管,可以使该胸骨撑开器的撑开位置能够得到精准的调节,撑开宽度能够根据撑开位置,以及患者创口的实际情况进行精确合理的调整,有效避免患者胸骨部位的损伤,又使撑开效果更好。(The invention discloses a sternum spreader, which comprises rectangular sliding frames, wherein the inner side walls of the rectangular sliding frames are symmetrically and slidably connected with L-shaped sliding boxes in the front and back directions, a spreading mechanism is arranged in each of the two L-shaped sliding boxes, a distance adjusting mechanism matched with the L-shaped sliding boxes for use is arranged in the middle of the inner side walls of the rectangular sliding frames, an arterial cannula fixing mechanism is arranged at the rear end of each rectangular sliding frame, a supporting structure is arranged at the lower side of each rectangular sliding frame, the spreading mechanism is used for spreading a chest wound, the distance adjusting mechanism is used for adjusting the distance between the two spreading mechanisms, the arterial cannula fixing mechanism is used for fixing an arterial cannula, the spreading position of the sternum spreader can be accurately adjusted, the spreading width can be accurately and reasonably adjusted according to the spreading position and the actual condition of the patient wound, and the injury of the sternum of the patient can be effectively avoided, but also has better opening effect.)

1. A sternal spreader, comprising a rectangular sliding frame (1), characterized in that: the utility model discloses a breastbone dilator, including rectangle sliding frame (1), the inside wall front and back symmetry and sliding connection of rectangle sliding frame (1) have L shape smooth case (2), two all be equipped with in the L shape smooth case (2) and strut the mechanism, the inside wall middle part of rectangle sliding frame (1) is equipped with the cooperation the distance adjustment mechanism that L shape smooth case (2) used, the rear end of rectangle sliding frame (1) is equipped with artery intubate fixed establishment, the downside of rectangle sliding frame (1) is equipped with bearing structure, strut the mechanism and be used for strutting the chest wound, distance adjustment mechanism is used for adjusting two strut the distance between the mechanism, artery intubate fixed establishment is used for fixed artery intubate, bearing structure is used for keeping breastbone dilator's stability.

2. A sternal distractor according to claim 1, wherein: the opening mechanism comprises a latch supporting arm (3) and two supporting plates (4), the latch supporting arm (3) is connected in the L-shaped sliding box (2) in a sliding manner, the two ends of the latch supporting arm (3) penetrate through the left side wall and the right side wall of the L-shaped sliding box (2), one supporting plate (4) is arranged at the lower part of the right side wall of the L-shaped sliding box (2), the other supporting plate (4) is arranged at the right end of the lower surface of the latch supporting arm (3), a rotating shaft (5) is rotatably connected on the left side between the upper inner surface and the lower inner surface of the L-shaped sliding box (2), a gear (6) is fixedly connected to the outer side of the rotating shaft (5), the gear (6) is meshed with the latch of the latch supporting arm (3), the upper end of the rotating shaft (5) penetrates through the upper side wall of the L-shaped sliding box (2) and is fixedly connected with a knob (7), the knob (7) is communicated with a positioning bolt (8) in a threaded connection mode.

3. A sternal distractor according to claim 1, wherein: apart from adjustment mechanism and include U-shaped groove (9), U-shaped groove (9) fixed connection be in the inside wall middle part of rectangle sliding frame (1), rotate between the two internal surfaces of the left and right sides of U-shaped groove (9) and be connected with threaded rod (10), threaded connection has rectangle nut piece (11) on threaded rod (10), rectangle nut piece (11) with the interior lower surface sliding connection of U-shaped groove (9), the left end of threaded rod (10) runs through the left side wall of U-shaped groove (9), both surfaces all articulate the one end of connecting rod (12) around rectangle nut piece (11), two the other end of connecting rod (12) all with correspond the side the lateral wall middle part of L shape smooth case (2) is articulated.

4. A sternal distractor according to claim 3, wherein: and stabilizing springs (13) are arranged between the surfaces of the two L-shaped sliding boxes (2) opposite to each other and the inner surface of the rectangular sliding frame (1).

5. A sternal distractor according to claim 1, wherein: artery intubate fixed establishment is including fixed pipe (14) and right trapezoid draw runner (17), fixed pipe (14) are established the rear surface of rectangle sliding frame (1), the lateral wall rear portion through connection of fixed pipe (14) has concave groove (15), fixedly connected with right trapezoid draw runner (16) on the interior rear surface of concave groove (15), the hypotenuse of right trapezoid draw runner (17) pass through the slider with the hypotenuse sliding connection of right trapezoid draw runner (16), the narrow downside of right trapezoid draw runner (16) upside is wide, the narrow upside of right trapezoid draw runner (17) downside is wide.

6. A sternal distractor according to claim 1, wherein: the supporting structure comprises a fixing groove (18), the right side of the upper side wall of the fixing groove (18) is connected with two fastening bolts (19) in a penetrating mode and in a threaded connection mode, the two fastening bolts (19) are symmetrically arranged front and back, a Z-shaped supporting frame (20) is arranged on the left side of the upper side wall of the fixing groove (18), and the lower surface of the rectangular sliding frame (1) is fixedly connected to the upper end of the Z-shaped supporting frame (20).

7. A sternal distractor according to claim 1, wherein: and scale marks (21) are arranged on the right side of the upper surface of the rectangular sliding frame (1).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sternum distractor.

Background

The breastbone spreader is commonly used in the process of an open chest operation, is used for spreading breastbones on two sides of a patient to a certain degree, and expanding the visual field of the operation, and is convenient for the operation to be carried out.

Disclosure of Invention

The present invention is directed to a sternal distractor, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sternum spreader, includes the smooth frame of rectangle, the inside wall front and back symmetry and the sliding connection of the smooth frame of rectangle have L shape to slide the case, two all be equipped with the mechanism that struts in the L shape slides the incasement, the inside wall middle part of the smooth frame of rectangle is equipped with the cooperation the distance adjustment mechanism that the smooth case of L shape used, the rear end of the smooth frame of rectangle is equipped with artery intubate fixed establishment, the downside of the smooth frame of rectangle is equipped with bearing structure, the mechanism that struts is used for strutting the chest wound, distance adjustment mechanism is used for adjusting two strut the distance between the mechanism, artery intubate fixed establishment is used for fixed artery intubate, bearing structure is used for keeping sternum spreader's stability.

Preferably, the opening mechanism includes latch brace arm and two faggings, latch brace arm sliding connection is in the inside of the smooth case of L shape, the both ends of latch brace arm all run through the left and right sides wall of the smooth case of L shape, one the fagging is established the right side wall lower part of the smooth case of L shape, another the fagging is established the lower surface right-hand member of latch brace arm, left side rotation between the upper and lower internal surface of the smooth case of L shape is connected with the pivot, the outside fixedly connected with gear of pivot, the gear with the latch meshing of latch brace arm, run through the upper end of pivot the last side wall fixedly connected with knob of the smooth case of L shape, link up and threaded connection has positioning bolt on the knob.

Preferably, apart from adjustment mechanism and including the U-shaped groove, U-shaped groove fixed connection be in the inside wall middle part of the smooth frame of rectangle, it is connected with the threaded rod to rotate between the two internal surfaces of the left and right sides in U-shaped groove, threaded connection has the rectangle nut piece on the threaded rod, the rectangle nut piece with the interior lower surface sliding connection in U-shaped groove, the left end of threaded rod runs through the left side wall in U-shaped groove, both surfaces all articulate the one end of connecting rod, two around the rectangle nut piece the other end of connecting rod all with correspond the side the lateral wall middle part of the smooth case of L shape is articulated.

Preferably, stabilizing springs are arranged between the opposite surfaces of the two L-shaped sliding boxes and the inner surface of the rectangular sliding frame.

Preferably, artery intubate fixed establishment is including fixed pipe and right trapezoid draw runner, fixed pipe is established the rear surface of rectangle draw runner, the lateral wall rear portion through connection of fixed pipe has the concave groove, fixedly connected with right trapezoid draw runner on the interior rear surface of concave groove, the hypotenuse of right trapezoid draw runner pass through the slider with the hypotenuse sliding connection of right trapezoid draw runner, the narrow downside of right trapezoid draw runner upside is wide, the narrow upside of right trapezoid draw runner downside is wide.

Preferably, the supporting structure comprises a fixing groove, the right side of the upper side wall of the fixing groove is communicated with two fastening bolts in a threaded connection mode, the two fastening bolts are symmetrically arranged front and back, a Z-shaped supporting frame is arranged on the left side of the upper side wall of the fixing groove, and the lower surface of the rectangular sliding frame is fixedly connected to the upper end of the Z-shaped supporting frame.

Preferably, the right side of the upper surface of the rectangular sliding frame is provided with scale marks.

Compared with the prior art, the invention has the beneficial effects that: a breastbone spreader, by rotating a threaded rod, a rectangular nut block is in threaded connection with the threaded rod, the rectangular nut block is in sliding connection with a U-shaped groove, one end of a connecting rod is hinged to two sides of the rectangular nut block, the other end of the connecting rod is hinged with an L-shaped sliding box on the corresponding side, a spreading mechanism is arranged in the L-shaped sliding box, the distance between the spreading mechanisms on the two sides is adjustable, a gear is rotated to stir a latch supporting arm, a supporting plate on the latch supporting arm and a supporting plate on the L-shaped sliding box are mutually far away, the spreading position of the breastbone spreader can be accurately adjusted, the spreading width can be accurately and reasonably adjusted according to the spreading position and the actual condition of a wound of a patient, the damage of the breastbone part of the patient is effectively avoided, the spreading effect is better, the rectangular sliding frame is arranged on a Z-shaped supporting frame which is arranged on a fixing groove, a fastening bolt is communicated and in threaded connection with the fixing groove, can make this sternum spreader's stability better, through the fixed pipe of connecting on the rectangle sliding frame, through connection concave groove on the fixed pipe, the fixed connection right trapezoid fixed strip in the concave groove, right trapezoid fixed strip hypotenuse passes through slider and right trapezoid sliding strip hypotenuse sliding connection, can conveniently be fixed to the aorta intubate, avoids the artery intubate to rock the position in the operation, influences going on of operation.

Drawings

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

FIG. 2 is a schematic cross-sectional front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic top cross-sectional view of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is a partial enlarged view of the portion B in FIG. 4;

FIG. 7 is a perspective view of the arterial cannula fixation mechanism of the present invention;

fig. 8 is a right sectional view of the arterial cannula fixing device according to the present invention.

In the figure: the device comprises a 1-rectangular sliding frame, a 2-L-shaped sliding box, a 3-latch supporting arm, a 4-supporting plate, a 5-rotating shaft, a 6-gear, a 7-knob, an 8-positioning bolt, a 9-U-shaped groove, a 10-threaded rod, a 11-rectangular nut block, a 12-connecting rod, a 13-stabilizing spring, a 14-fixing tube, a 15-concave groove, a 16-right trapezoid fixing strip, a 17-right trapezoid sliding strip, an 18-fixing groove, a 19-fastening bolt, a 20-Z-shaped supporting frame and 21-scale marks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a sternum spreader, includes rectangle sliding frame 1, symmetry and sliding connection have L shape sliding box 2 around the inside wall of rectangle sliding frame 1, two all be equipped with the mechanism that struts in the L shape sliding box 2, the inside wall middle part of rectangle sliding frame 1 is equipped with the cooperation the distance adjustment mechanism that L shape sliding box 2 used, the rear end of rectangle sliding frame 1 is equipped with artery intubate fixed establishment, the downside of rectangle sliding frame 1 is equipped with bearing structure, the mechanism that struts is used for strutting the chest wound, distance adjustment mechanism is used for adjusting two strut the distance between the mechanism, artery intubate fixed establishment is used for fixed artery intubate, bearing structure is used for keeping sternum spreader's stability.

The distance adjusting mechanism is adjusted in advance, the adjusting distance of the distance adjusting mechanism is determined according to the length of a wound to be cut, the rectangular sliding frames 1 on two sides and the opening mechanism are located at the position, needing to be opened, of the wound of a patient, the supporting structure fixes the sternum opener on the operating bed, the rectangular sliding frames 1 can be located on the upper side of the wound of the patient, the opening width is determined according to actual conditions, the opening mechanisms with reasonable opening widths on two sides are clamped into the wound of the patient, the sternum of the patient is opened, the opening width is more reasonable, sternum injury of the patient caused by excessive opening is avoided, and operation risks are reduced.

Specifically, the opening mechanism comprises a latch supporting arm 3 and two supporting plates 4, the latch supporting arm 3 is slidably connected inside the L-shaped sliding box 2, two ends of the latch supporting arm 3 penetrate through the left side wall and the right side wall of the L-shaped sliding box 2, one supporting plate 4 is arranged at the lower part of the right side wall of the L-shaped sliding box 2, the other supporting plate 4 is arranged at the right end of the lower surface of the latch supporting arm 3, the two supporting plates 4 are arranged in an L shape, the two supporting plates 4 are opposite to each other, when in use, the two supporting plates 4 extend into a wound to hook two sides of the wound, a rotating shaft 5 is rotatably connected to the left side between the upper inner surface and the lower inner surface of the L-shaped sliding box 2, a gear 6 is fixedly connected to the outer side of the rotating shaft 5, the gear 6 is meshed with the latch of the latch supporting arm 3, and a knob 7 is fixedly connected to the upper end of the rotating shaft 5, penetrates through the upper side wall of the L-shaped sliding box 2, link up and threaded connection has positioning bolt 8 on the knob 7, when strutting the mechanism and using, make knob 7 rotate, knob 7 drives pivot 5 and rotates, the epaxial gear 6 of pivot 5 rotates, gear 6 stirs latch brace 3, make latch brace 3 can the horizontal slip, left backup pad 4 is kept away from to the backup pad 4 that makes the right side when latch brace 3 slides to the right side, make the doctor strut the width according to the actual conditions determination that the position was strutted to patient's wound needs, adjust to the suitable distance after screwing positioning bolt 8 and withholding the upper surface of L shape smooth case 2, it is fixed to make the width of strutting, make backup pad 4 strut to patient's wound, make the width of strutting of wound position reasonable, convenient adjustment.

Particularly, the distance adjusting mechanism comprises a U-shaped groove 9, the U-shaped groove 9 is fixedly connected with the middle part of the inner side wall of the rectangular sliding frame 1, a threaded rod 10 is rotatably connected between the left inner surface and the right inner surface of the U-shaped groove 9, a rectangular nut block 11 is in threaded connection with the threaded rod 10, the rectangular nut block 11 is in sliding connection with the inner lower surface of the U-shaped groove 9, the left end of the threaded rod 10 penetrates through the left side wall of the U-shaped groove 9, the threaded rod 10 is convenient to rotate, the front surface and the rear surface of the rectangular nut block 11 are respectively hinged with one end of a connecting rod 12, the other ends of the two connecting rods 12 are respectively hinged with the middle part of the side wall of the L-shaped sliding box 2 at the corresponding side, when the distance adjusting mechanism is used, a doctor rotates the threaded rod 10, the rectangular nut block 11 limited by the U-shaped groove 9 on the threaded rod 10 can slide left and right, so that the connecting rods 12 at two sides can enable the L-shaped sliding boxes 2 at two sides to be close to each other, or keep away from each other, and then make two distances of strutting between the mechanism obtain accurate regulation, make the more accurate that the position of strutting can be confirmed, make the effect of strutting better.

Particularly, two the surface that L shape smooth case 2 carried on the back mutually with all be equipped with stabilizing spring 13 between the internal surface of rectangle smooth frame 1, when the smooth case 2 of both sides L shape was kept away from each other the adjustment interval, stabilizing spring 13 compression provided a reverse thrust to L shape smooth case 2, made the slip of L shape smooth case 2 more stable.

Particularly, the artery intubation fixing mechanism comprises a fixing tube 14 and a right trapezoid slide bar 17, wherein the fixing tube 14 is arranged on the rear surface of the rectangular slide frame 1, the rear part of the side wall of the fixing tube 14 is connected with a concave groove 15 in a penetrating manner, the inner rear surface of the concave groove 15 is fixedly connected with the right trapezoid fixing bar 16, the inclined edge of the right trapezoid slide bar 17 is connected with the inclined edge of the right trapezoid fixing bar 16 in a sliding manner through a sliding block, the upper side of the right trapezoid fixing bar 16 is narrow and the lower side of the right trapezoid slide bar 17 is wide, an aorta intubation is inserted into a patient during an operation, the intubation can pass through the fixing tube 14, the right trapezoid slide bar 17 is pressed downwards, the side wall of the right trapezoid slide bar 17 is pushed into the fixing tube 14 by the right trapezoid fixing bar 16, the aorta intubation is fixed, the operation is simple and convenient, and the fixing effect is good, the aorta intubation is prevented from shaking unstably in the operation process to influence the operation.

Particularly, bearing structure includes fixed slot 18, link up and threaded connection has two fastening bolt 19 on the last lateral wall right side of fixed slot 18, and two fastening bolt 19 front and back symmetry sets up, the last lateral wall left side of fixed slot 18 is equipped with Z shape support frame 20, and the Z shape of Z shape support frame 20 sets up and to reduce sheltering from in space, and the convenient operation is gone on, the lower fixed surface of rectangle sliding frame 1 is connected the upper end of Z shape support frame 20, and fixed slot 18 card is at the operation table edge, screws up fastening bolt 19 and fixes fixed slot 18 on the operation table, and Z shape support frame 20 supports rectangle sliding frame 1 at the upside of patient's wound, makes the stability that this sternum strutted better.

Particularly, the right side of the upper surface of the rectangular sliding frame 1 is provided with scale marks 21, the scale marks 21 are convenient for doctors to improve reference, and the adjusting distance of the distance adjusting mechanism is determined, so that the distance between the two side spreading mechanisms is adjusted more accurately.

The working principle is as follows: the supporting structure is used for fixing the sternum spreader on an operating bed, the fixing groove 18 is clamped at the edge of the operating bed, the fastening bolt 19 is screwed and fixed, the rectangular sliding frame 1 can be stably positioned at the wound upper part of a patient by the Z-shaped supporting frame 20, the distance between the two spreading mechanisms can be adjusted in advance according to the incision length set by a doctor by the distance adjusting mechanism, the threaded rod 10 is rotated, the rectangular nut block 11 on the threaded rod 10 is limited by the U-shaped groove 9, the rectangular nut block 11 can slide left and right, the connecting rods 12 at two sides of the rectangular nut block 11 drive the L-shaped sliding box 2 to slide, the distance between the two spreading mechanisms can be accurately adjusted in advance, the doctor rotates the knob 7 again, the knob 7 drives the rotating shaft 5 to rotate, the gear 6 on the rotating shaft 5 stirs the latch supporting arm 3, and the supporting plate 4 on the latch supporting arm 3 can be far away from the supporting plate 4 on the L-shaped sliding box 2, the width of strutting can be adjusted according to the particular case adjustment that the wound both sides strut the position to the width that makes the messenger strut, the width is strutted to the adjustment, screw positioning bolt 8 and the lateral wall top of L shape smooth case 2 tightly, make the rotational position of knob 7 fixed, and then make the width of strutting fixed, two faggings 4 on the mechanism of strutting pull open the wound of patient again, it is more reasonable to make the width of strutting, prevent to strut patient's sternum damage when excessive, reduce the operation risk, and the aorta intubate that inserts in the patient during operation can pass fixed tube 14 earlier, slide right trapezoid draw 17 down along right trapezoid fixed strip 16, with aorta intubate chucking, make its position fix, avoid the intubate unstability in the operation process, influence going on of operation.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

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.