CN114041838B - A sternum distraction device for cardiac surgery - Google Patents

Abstract

A sternum opening device for cardiac surgery relates to the technical field of medical equipment. An adjustment mechanism is installed on the deformed end of the opening plate, and through grooves arranged at equal distances are arranged on the deformed end of the opening plate. An inserting plate is installed inside; the sternum opening device for cardiac surgery according to the present invention adjusts the protruding quantity of the inserting plate according to the size of the surgical wound, so that the inserting plate corresponding to the surgical wound is inserted, and the inserting plate is inserted After reaching the surgical wound, it is deformed, and the skin at the position of the surgical wound is fixed to prevent the sternum opening device for cardiac surgery from being separated from the surgical wound. The opening of the wound can be adjusted according to the needs of the operation. After the adjustment is completed, the adjustment mechanism is disassembled and rotated, so that the adjustment mechanism is located on both sides of the opening plate, so as to avoid the adjustment mechanism affecting the operation of the medical staff.

Description

A sternum distraction device for cardiac surgery

technical field

The invention relates to the technical field of medical equipment, in particular to a sternum distraction device for cardiac surgery.

Background technique

During cardiac surgery, the patient's sternum needs to be stretched for surgery. The existing sternum stretch devices are used to stretch the limit position through the rack. Due to the large distance between the teeth on the rack, when the sternum is stretched too much, the sternum will be stretched too far. The surgical wound on the patient is torn again, causing unnecessary secondary injury. The sternum is stretched too small, which is inconvenient for medical staff to operate. At the same time, when the insertion end of the existing sternum stretch device is arc-shaped, it is not easy to operate. It is convenient for medical staff to insert the sternum opening device into the surgical wound. If the insertion end of the sternum opening device is straight, it is convenient to insert the sternum opening device into the surgical wound. Fixed, there will be slippage phenomenon, affecting the normal operation of the operation.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies in the background technology, the present invention discloses a sternum opening device for cardiac surgery. The present invention adjusts the protruding quantity of the insertion plate according to the size of the surgical wound, so that the insertion plate corresponding to the surgical wound is inserted into it, After the insertion plate is inserted into the surgical wound, it is deformed, and the skin at the position of the surgical wound is fixed to prevent the sternum opening device for cardiac surgery from being separated from the surgical wound. The size of the opening of the surgical wound can be adjusted according to the needs of the operation. After the adjustment is completed, the adjustment mechanism is disassembled and rotated, so that the adjustment mechanism is located on both sides of the opening plate, so as to avoid the adjustment mechanism affecting the medical staff. operate.

In order to realize the purpose of the invention, the present invention adopts the following technical solutions:

A sternum spreading device for cardiac surgery, comprising a spreading plate, an adjustment mechanism is installed on the deformed end of the spreading plate, and through grooves arranged at equal distances are arranged on the deformed end of the spreading plate. An insertion plate is installed in the slot.

The expansion plate includes a connecting block, a connecting belt and an adjusting block. The number of the connecting blocks is two, and two groups of connecting belts are fixedly connected between the two connecting blocks, and the number of each group of connecting belts is two. Adjusting blocks arranged at equal distances are fixedly connected to the connecting belts, the adjusting blocks are provided with through grooves, and two adjusting blocks in the middle are provided with adjusting mechanisms.

The position of the central axis of the adjusting mechanism coincides with the position of the central axis of the spreading plate.

The adjustment mechanism includes a connecting frame, a first multi-stage telescopic rod, a rotating block, a screw rod, a second multi-stage telescopic rod, a threaded connection block, an arc-shaped clipping plate, a toggle block, an arc-shaped limit plate and a clipping frame , the number of the connecting frames is two groups, the number of each group of connecting frames is two, and the two groups of connecting frames are respectively located on both sides of the deformation end of the stretched plate and are fixedly connected, and a rotating block is rotatably connected in the connecting frame, A first multi-stage telescopic rod is fixedly connected to the rotating block, a threaded connection block is fixedly connected to the telescopic end of the first multi-stage telescopic rod, and the two threaded connection blocks are clamped to each other, and the threaded connection block There is an installation groove on the installation groove, a second multi-stage telescopic rod is installed in the installation groove, and a clamping frame is fixedly connected to the telescopic end of the second multi-stage telescopic rod, and the clamping frame is located on the threaded connection blocks on both sides The two sides of the clamping frame are respectively fixedly connected with arc-shaped clamping plates, the arc-shaped clamping plates are slidingly connected with the toggle blocks, and the two toggle blocks are respectively fixed with screws. , and the two toggle blocks are adhered to each other, the two ends of the screw rod are respectively connected with the threaded connection blocks, and the two toggle blocks are respectively connected with arc-shaped limit plates, and the arc-shaped limit plates are located in the card In the frame and fixed connection.

The threads at both ends of the screw are opposite.

The insertion plate includes a plate body, a turning plate, a transmission plate, a second connecting frame and a push plate, the plate body is located in the through groove on the deformation end of the opening plate and is slidably connected, and the plate body is provided with a sliding groove and the bending groove, and the bending groove is communicated with the chute, a push plate is slidably connected in the chute, the push plate is connected with the transmission plate through the second connecting frame, and one end of the transmission plate is movably connected with the turning plate Limiting grooves are respectively provided on both sides of the turning plate, and a limiting rod is fixedly connected to the groove walls on both sides of the bending groove, and one end of the limiting rod is located in the limiting groove and is slidably connected.

Owing to adopting the above-mentioned technical scheme, the present invention has the following beneficial effects:

The sternum opening device for cardiac surgery according to the present invention adjusts the protruding quantity of the insertion plate according to the size of the operation wound, so that the insertion plate corresponding to the operation wound is inserted, and the insertion plate is deformed after being inserted into the operation wound , to fix the skin at the position of the surgical wound, to prevent the sternum opening device for cardiac surgery from being separated from the surgical wound, and to drive the opening plate to move through the adjustment mechanism, and to drive the insertion plate to move through the opening plate, so as to open the surgical wound, it can be The size of the opening of the surgical wound is adjusted according to the needs of the operation. After the adjustment is completed, the adjustment mechanism is disassembled and rotated, so that the adjustment mechanism is located on both sides of the opening plate, so as to avoid the adjustment mechanism affecting the operation of the medical staff.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the sectional view of the present invention;

3 is a cross-sectional view of the present invention;

Fig. 4 is the enlarged structural schematic diagram of A place of the present invention;

1. Spreading plate; 101, connecting block; 102, connecting belt; 103, adjusting block; 2, inserting plate; 201, plate body; 202, turning plate; 203, transmission plate; 204, second connecting frame; 205, Push plate; 3. Adjustment mechanism; 301, connecting frame; 302, first multi-stage telescopic rod; 303, rotating block; 304, screw rod; 305, second multi-stage telescopic rod; 306, threaded connection block; 307, arc Clip board; 308, toggle block; 309, arc limit plate; 310, clip frame.

Detailed ways

The present invention can be explained in detail through the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

A sternum opening device for cardiac surgery described in conjunction with accompanying drawings 1 to 4 comprises a spreading plate 1, an adjusting mechanism 3 is installed on the deformed end of the expanding plate 1, and the spreading plate 1 is driven by the adjusting mechanism 3 For deformation, the deformed end of the expansion plate 1 is provided with through grooves arranged at equal distances, and the insertion plate 2 is installed in the through groove, and the insertion plate 2 is inserted into the surgical wound, and the skin near the surgical wound is treated. to be fixed.

The expansion plate 1 includes a connecting block 101, a connecting belt 102 and an adjusting block 103. The number of the connecting blocks 101 is two, and two groups of connecting belts 102 are fixedly connected between the two connecting blocks 101. The number of 102 is two, two connecting belts 102 are fixedly connected with adjusting blocks 103 arranged at equal distances, the adjusting blocks 103 are provided with through grooves, and the two adjusting blocks 103 in the middle are provided with adjusting mechanisms 3 .

The position of the central axis of the adjusting mechanism 3 coincides with the position of the central axis of the opening plate 1, and the center position of the opening plate 1 is driven to open outward by the adjusting mechanism 3, so that the opening plate 1 is opened in a circular shape.

The adjustment mechanism 3 includes a connecting frame 301, a first multi-stage telescopic rod 302, a rotating block 303, a screw rod 304, a second multi-stage telescopic rod 305, a threaded connection block 306, an arc-shaped snap plate 307, a toggle block 308, The arc limit plate 309 and the clamping frame 310, the number of the connecting frames 301 is two groups, the number of each group of connecting frames 301 is two, and the two sets of connecting frames 301 are respectively located on both sides of the deformed end of the opening plate 1 and fixedly connected, the connecting frame 301 is rotatably connected with a rotating block 303, the rotating block 303 is fixedly connected with a first multi-stage telescopic rod 302, and the telescopic end of the first multi-stage telescopic rod 302 is fixedly connected with a A threaded connection block 306, two threaded connection blocks 306 are clamped to each other, the threaded connection block 306 is provided with an installation groove, and a second multi-stage telescopic rod 305 is installed in the installation groove, and the second multi-stage telescopic rod 305 is installed in the installation groove. A clipping frame 310 is fixedly connected to the telescopic end of the telescopic rod 305 , and the clipping frame 310 is located between the threaded connection blocks 306 on both sides and is in contact with each other. The two sides of the clipping frame 310 are fixedly connected with arcs respectively. The clamping plate 307, the arc-shaped clamping plate 307 is slidably connected with the toggle block 308, the two toggle blocks 308 are respectively fixedly connected with a screw 304, and the two toggle blocks 308 are adhered to each other, the screw Two ends of the 304 are respectively connected with the threaded connection blocks 306 . The two toggle blocks 308 are respectively slidably connected with arc-shaped limit plates 309 , which are located in the clamping frame 310 and are fixedly connected.

The threads at both ends of the screw rod 304 are opposite, and the screw rod 304 drives the screw connection blocks 306 at both ends to move inward or outward at the same time.

The inserting plate 2 includes a plate body 201, a turning plate 202, a transmission plate 203, a second connecting frame 204 and a pushing plate 205. The plate body 201 is located in the through groove on the deformed end of the opening plate 1 and is slidably connected, so The plate body 201 is provided with a chute and a bending slot, and the bending slot is communicated with the chute. A push plate 205 is slidably connected in the chute, and the push plate 205 is connected to the transmission plate 203 through the second connecting frame 204. One end of the transmission plate 203 is movably connected with the turning plate 202, the two sides of the turning plate 202 are respectively provided with limit grooves, and the groove walls on both sides of the bending groove are respectively fixed with limit rods. One end of the limit rod is located in the limit groove and is slidably connected.

In the described sternum opening device for cardiac surgery, when in use, the medical staff aligns the opening plate 1 with the position of the surgical wound on the patient, and adjusts the insertion plate 2 according to the size of the surgical wound, so that the excess The insertion plate 2 is retracted into the through groove on the adjustment block 103, the insertion plate 2 aligned with the surgical wound is inserted into the surgical wound, and the push plate 205 is pressed, and the transmission plate 203 is driven by the push plate 205 to move, and the transmission plate 203 The turning plate 202 is driven to move, and the movement track of the turning plate 202 is limited by the limit rod, so that the turning plate 202 extends out of the plate body 201, and the insertion plate 2 becomes an L-shaped plate, and the skin at the surgical wound position is stuck. In order to prevent the sternum opening device for cardiac surgery from being separated from the surgical wound during the operation, the medical staff rotates the toggle block 308, drives the screw 304 to rotate through the toggle block 308, and drives the threaded connecting blocks 306 at both ends to move outward at the same time through the screw 304. , the threaded connection block 306 drives the adjustment block 103 to move through the first multi-stage telescopic rod 302, and drives the insertion plate 2 fixed with the skin to move through the adjustment block 103, and opens the surgical wound. Personnel separates the two toggle blocks 308. After the two toggle blocks 308 are separated, the position of the toggle block 308 is limited by the arc-shaped clamping plate 307 and the arc-shaped limit plate 309 to prevent the toggle block 308 from detaching. The clamping frame 310 pulls the separated two toggle blocks 308 through the clamping frame 310, so that the clamping frame 310 moves to both sides of the opening plate 1, and rotates, so that the separated clamping frame 310 and the support The opening plate 1 is flat to prevent the adjustment mechanism 3 from affecting the operation of the medical staff.

The part that is not described in detail in the present invention is the prior art. Although the present invention is specifically shown and introduced in conjunction with the preferred embodiments, there are many methods and approaches to realize the technical solution. The above are only the preferred embodiments of the present invention, but the It should be understood by those skilled in the art that various changes can be made to the present invention in form and detail without departing from the spirit and scope of the present invention defined by the appended claims, which are all within the protection scope of the present invention.

Claims (2)

1. A sternal distraction device for cardiac surgery, comprising a distraction plate (1), characterized in that: the adjusting mechanism (3) is installed on the deformation end of the unfolding plate (1), through grooves which are arranged at equal intervals are formed in the deformation end of the unfolding plate (1), and the inserting plate (2) is installed in the through grooves;

the unfolding plate (1) comprises connecting blocks (101), connecting bands (102) and adjusting blocks (103), the number of the connecting blocks (101) is two, two groups of connecting bands (102) are fixedly connected between the two connecting blocks (101), the number of each group of connecting bands (102) is two, the adjusting blocks (103) which are arranged at equal intervals are fixedly connected to the two connecting bands (102), through grooves are formed in the adjusting blocks (103), and adjusting mechanisms (3) are installed on the two adjusting blocks (103) in the middle;

the adjusting mechanism (3) comprises a connecting frame (301), a first multi-stage telescopic rod (302), a rotating block (303), a screw rod (304), a second multi-stage telescopic rod (305), threaded connection blocks (306), arc clamping plates (307), a shifting block (308), arc limiting plates (309) and clamping frames (310), the number of the connecting frame (301) is two, the number of each connecting frame (301) is two, the two connecting frames (301) are respectively positioned at two sides of the deformation end of the opening plate (1) and fixedly connected, the rotating block (303) is rotationally connected in the connecting frame (301), the first multi-stage telescopic rod (302) is fixedly connected on the rotating block (303), the threaded connection blocks (306) are fixedly connected on the telescopic end of the first multi-stage telescopic rod (302), the two threaded connection blocks (306) are mutually clamped, a mounting groove is formed in the threaded connection blocks (306), a second multi-stage telescopic rod (305) is installed in the installation groove, a clamping frame (310) is fixedly connected to the telescopic end of the second multi-stage telescopic rod (305), the clamping frame (310) is located between the threaded connection blocks (306) on the two sides and is in contact connection with the threaded connection blocks, arc clamping plates (307) are fixedly connected to the two sides in the clamping frame (310) respectively, the arc clamping plates (307) are in sliding connection with the shifting blocks (308), screw rods (304) are fixedly connected to the two shifting blocks (308) respectively, the two shifting blocks (308) are adhered to each other, the two ends of each screw rod (304) are connected with the threaded connection blocks (306) respectively, arc limiting plates (309) are slidably connected to the two shifting blocks (308) respectively, and the arc limiting plates (309) are located in the clamping frame (310) and are fixedly connected to each other; after the two shifting blocks (308) are separated, the positions of the shifting blocks (308) are limited through the arc-shaped clamping plate (307) and the arc-shaped limiting plate (309), the shifting blocks (308) are prevented from being separated from the clamping frame (310), the two separated shifting blocks (308) are pulled through the clamping frame (310), the clamping frame (310) is moved to two sides of the opening plate (1) and rotated, and the separated clamping frame (310) is enabled to be level with the opening plate (1);

the threads at the two ends of the screw rod (304) are opposite;

insert board (2) including plate body (201), returning face plate (202), driving plate (203), second link (204) and slurcam (205), plate body (201) are located and prop open logical inslot and sliding connection that board (1) deformation was served, be equipped with spout and bending groove on plate body (201), and bending groove and spout intercommunication, sliding connection has slurcam (205) in the spout, slurcam (205) are connected with driving plate (203) through second link (204), the one end and returning face plate (202) swing joint of driving plate (203), the both sides of returning face plate (202) are equipped with the spacing groove respectively, fixedly connected with gag lever post respectively on the cell wall of bending groove both sides, the one end of gag lever post is located spacing inslot and sliding connection.

2. The sternal distraction device of cardiac surgery of claim 1, wherein: the position of the central axis of the adjusting mechanism (3) is coincided with the position of the central axis of the opening plate (1).

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