A planar link-type incision spreader for abdominal surgery

Abstract

The application discloses a flat link type incision opening device for abdominal surgery, which comprises a supporting rod, a stand, a fixing rod and an extension rod, a stand is vertically installed in the middle of the bottom end surface of the supporting rod, the inside of the stand is hollow, a lead screw is rotationally installed on each side wall of the stand, the lead screws are horizontally and symmetrically distributed, one end of each lead screw is rotationally connected with a first gear which is rotationally arranged in the inside of the lead screw, two groups of the first gears are oppositely arranged and synchronously rotate with the lead screws, a moving block is arranged on the outside of the lead screw, a moving rod is vertically installed on the upper surface of the moving block, the bottom of the moving rod is connected with the fixing rod and synchronously moves with the fixing rod, an extension rod is slidably arranged at the bottom of the fixing rod, and the extension rod is parallel to the fixing rod. The flat link type incision opening device for abdominal surgery has the advantages of convenient operation and effective response to sudden situations in surgery, and can be widely used.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a planar linkage-type incision opening device for abdominal surgery. Background Technology

[0002] Surgery, also known as surgery or incision, refers to the process of inserting surgical equipment or instruments into the human body or other biological tissues through the operation of a surgeon or other professionals to remove lesions, alter structures, or implant foreign objects.

[0003] Currently, most of the retractors used in existing surgical procedures are inserted into the wound after the opening position has been adjusted in advance. In the event of an emergency, it is difficult to make further adjustments, which makes it difficult to meet the needs of doctors and requires further improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a planar linkage-type incision opening device for abdominal surgery, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a planar linkage-type incision opening device for abdominal surgery, comprising a support rod, a column, a fixing rod, and an extension rod. The column is vertically mounted at the center of the bottom end of the support rod. The column is hollow inside. Screws are rotatably mounted on both sides of the column. The screws are horizontally symmetrically distributed and connected to a first gear rotatably disposed inside the screw. Two sets of the first gears are arranged opposite each other and rotate synchronously with the screws. A movable block is sleeved on the outside of the screw. A movable rod is vertically mounted on the upper surface of the movable block. The bottom of the movable rod is connected to the fixing rod and moves synchronously with the fixing rod. An extension rod is slidably mounted on the bottom of the fixing rod. The extension rod is distributed parallel to the fixing rod.

[0006] The fixed rods are symmetrically arranged in two sets, and each has a horizontally opening movable groove on its facing surface. One end of the connecting block is inserted into the inside of the movable groove. The connecting block has a U-shaped structure, and the other end is elastically connected to the side wall of the extension rod. One end of the connecting block that extends into the movable groove is fixedly connected to the card plate. The card plate also has a card block protruding from its surface facing the connecting block. The inner wall of the movable groove has a card slot that matches the card block at the same position.

[0007] A first rotating rod is provided through the center of the upper surface of the support rod. Two sets of second rotating rods are symmetrically arranged on both sides of the first rotating rod. The bottom of the first rotating rod passes through the column and extends into the interior of the column to be fixedly connected to the rotating rod. The end of the rotating rod away from the first rotating rod is provided with a first gear that meshes with the two sets of opposing second gears.

[0008] Preferably, a fixing sleeve is also fitted on the outer wall of the rotating rod. The fixing sleeve has an internal hollow circular structure. Connecting plates are symmetrically fixed on both sides of the outer wall of the fixing sleeve. One end of the connecting plate opposite to the first rotating rod is connected to a second spring. The second spring is vertically set, and the end away from the connecting plate is fixedly connected to the upper surface of the bearing plate. The bearing plate is welded and fixed to the inner wall of the column.

[0009] Preferably, the second rotating rod is vertically connected to one end of the support rod facing the lead screw and to one end of the connecting rod. The other end of the connecting rod is fixedly connected to the center of the end face of the active gear plate. The active gear plate meshes with the driven gear plate. The driven gear plate is located beside the active gear plate and is distributed perpendicularly to it. The driven gear plate is fixedly sleeved on the outside of the lead screw and rotates synchronously with the lead screw.

[0010] Preferably, the end of the connecting block away from the moving groove extends into the insertion hole opened on the side wall of the extension rod. A first spring is horizontally installed inside the insertion hole. The connecting block is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly connected to the inside of the insertion hole.

[0011] Preferably, the support rod has a horizontal groove for the slider to slide inwards towards the inside of the moving block, and the slider is fixedly connected to one end of the moving rod on the surface facing the moving block.

[0012] Preferably, the upper surface of the movable block is fixedly connected to one end of the movable rod, and a threaded hole for the lead screw to pass through is provided inside the movable block.

[0013] Preferably, the fixed rod has a T-shaped limiting block protruding from the surface facing the extension rod, and the extension plate has a T-shaped limiting groove horizontally opened on the surface facing the limiting block to allow the limiting block to slide horizontally.

[0014] Preferably, both the first and second rotating rods have anti-slip textures on their outer walls located above the support rod.

[0015] The technical effects and advantages of this invention are as follows: This planar linkage-type incision retraction device for abdominal surgery, through the arrangement of the first and second rotating rods, allows the two sets of screws used to adjust the distance between the fixed rods to rotate synchronously or independently, facilitating adjustment and effectively improving the reliability during surgery. It avoids repeated disassembly and reassembly of the incision retraction device during surgery, effectively improving surgical efficiency and safety, and reducing the occurrence of risks and errors. The elastic setting of the first rotating rod allows the two sets of fixed rods to move synchronously in series or independently, making operation convenient. The fixed rods can move independently on one side or simultaneously on both sides. This planar linkage-type incision retraction device for abdominal surgery has the advantages of easy operation, effective response to surgical emergencies, and wide applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure between the fixed rod and the extension rod of the present invention;

[0018] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the internal structure of the column of the present invention;

[0020] Figure 5 This is a schematic diagram of the connection structure between the movable block and the support rod of the present invention.

[0021] In the diagram: 1 Support rod, 2 Extension rod, 3 Moving groove, 4 Connecting block, 5 Fixed rod, 6 Column, 7 First rotating rod, 8 Second rotating rod, 9 Lead screw, 10 Clamping plate, 11 Clamping block, 12 Clamping groove, 13 First spring, 14 Connecting rod, 15 Driving gear, 16 Driven gear, 18 Rotating rod, 19 Fixed sleeve, 20 Connecting plate, 21 Second spring, 22 Bearing plate, 23 Mounting plate, 24 First gear, 25 Second gear, 26 Moving block, 27 Threaded hole, 28 Moving rod, 29 Slide groove, 30 Slider. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides, for example Figure 1-5 The planar linkage-type incision opening device for abdominal surgery shown includes a support rod 1, a column 6, a fixing rod 5, and an extension rod 2. The column 6 is vertically mounted in the center of the bottom end of the support rod 1. The interior of the column 6 is hollow. Screws 9 are rotatably mounted on both sides of the column 6. The screws 9 are horizontally symmetrically distributed and connected to a first gear 24 rotatably disposed inside the screws 9. Two sets of the first gears 24 are arranged opposite each other and rotate synchronously with the screws 9. A moving block 26 is sleeved on the outside of the screws 9. A moving rod 28 is vertically mounted on the upper surface of the moving block 26. The bottom of the moving rod 28 is connected to the fixing rod 5 and moves synchronously with the fixing rod 5. An extension rod 2 is also slidably mounted on the bottom of the fixing rod 5. The extension rod 2 is distributed parallel to the fixing rod 5.

[0024] Two sets of fixed rods 5 are symmetrically arranged, and each has a horizontally opening movable groove 3 on its facing surface. One end of the connecting block 4 is inserted into the inside of the movable groove 3. The connecting block 4 has a U-shaped structure, and the other end is elastically connected to the side wall of the extension rod 2. One end of the connecting block 4 that extends into the movable groove 3 is fixedly connected to the card plate 10. The card plate 10 also has a protruding card block 11 on its surface facing the connecting block 4. A card groove 12 that matches the card block 11 is opened on the inner wall of the movable groove 3 at the same position as the card block 11.

[0025] The upper surface of the support rod 1 is provided with a first rotating rod 7 through the center. Two sets of second rotating rods 8 are symmetrically arranged on both sides of the first rotating rod 7. The bottom of the first rotating rod 7 passes through the column 6 and extends into the interior of the column 6 to be fixedly connected to the rotating rod 18. The end of the rotating rod 18 away from the first rotating rod 7 is provided with a first gear 24 that meshes with the two sets of opposite second gears 25.

[0026] Specifically, a fixing sleeve 19 is also fitted on the outer wall of the rotating rod 18. The fixing sleeve 19 has an internal hollow circular structure. Connecting plates 20 are symmetrically fixed on both sides of the outer wall of the fixing sleeve 19. One end of the connecting plate 20 opposite to the first rotating rod 7 is connected to the second spring 21. The second spring 21 is vertically set, and the end away from the connecting plate 20 is fixedly connected to the upper surface of the bearing plate 22. The bearing plate 22 is welded and fixed to the inner wall of the column 6. When the rotating rod 18 descends, it drives the fixing sleeve 19 to descend synchronously, thereby compressing the second spring 21.

[0027] Specifically, the second rotating rod 8 is vertically connected to one end of the support rod 1 facing the lead screw 9 and to one end of the connecting rod 14. The other end of the connecting rod 14 is fixedly connected to the center of the end face of the active gear disk 15. The active gear disk 15 meshes with the driven gear disk 16. The driven gear disk 16 is located beside the active gear disk 15 and is distributed perpendicularly to it. The driven gear disk 16 is fixedly sleeved 19 outside the lead screw 9 and rotates synchronously with the lead screw 9. The driven gear disk 16 is subjected to force to drive the lead screw 9 to rotate.

[0028] Specifically, the end of the connecting block 4 away from the moving groove 3 extends into the insertion hole opened on the side wall of the extension rod 2. A first spring 13 is horizontally installed inside the insertion hole. The connecting block 4 is fixedly connected to one end of the first spring 13, and the other end of the first spring 13 is fixedly connected to the inside of the insertion hole. The return force of the first spring 13 drives the locking block 11 to engage with the locking groove 12, so the extension rod 2 cannot move.

[0029] Specifically, the support rod 1 has a horizontal groove 29 for sliding the slider 30 inside the moving block 26, and the slider 30 is fixedly connected to one end of the moving rod 28 on the surface of the moving block 26.

[0030] Specifically, the upper surface of the movable block 26 is fixedly connected to one end of the movable rod 28, and a threaded hole 27 for the lead screw 9 to pass through is provided inside the movable block 26.

[0031] Specifically, the fixed rod 5 has a T-shaped limiting block protruding from its surface facing the extension rod 2, and the extension plate has a T-shaped limiting groove horizontally opened on its surface facing the limiting block to allow the limiting block to slide horizontally, thereby improving the stability of the sliding.

[0032] Specifically, the outer walls of the first rotating rod 7 and the second rotating rod 8 located above the support rod 1 are provided with anti-slip textures. By operating the first rotating rod 7 and the second rotating rod 8, the fixed rod 5 can be opened simultaneously or individually.

[0033] Working principle: This abdominal surgical planar linkage-type incision opening device, in use, firstly adjusts the distance between the two sets of fixed rods 5 according to the opening requirements to open the opening. First, press the first rotating rod 7, which extends into the interior of the column 6. The rotating rod 18 moves down synchronously with the first rotating rod 7. When the rotating rod 18 descends, it drives the fixed sleeve 19 to descend synchronously, thereby compressing the second spring 21. When the rotating rod 18 descends, it drives the second gear 25 to mesh with the two sets of first gears 24. The second gear 25 is installed at the bottom of the rotating rod 18 through the mounting plate 23. When the first gear 24 meshes with the second gear 25... The first rotating rod 7 can be rotated, which drives the rotating rod 18 and the first gear 24 to rotate. The first gear 24 drives the second gear 25 to rotate, and then the lead screw 9 rotates synchronously with the second gear 25. After completion, the first rotating rod 7 is released, the second spring 21 returns to its original position, and the first gear 24 moves away from the second gear 25. The first rotating rod 7 can only rotate freely. The moving block 26 moves along the gear, which drives the fixed rod 5 to separate or move closer to the adjustment distance. The fixed sleeve 19 and the rotating rod 18 are only rotatably connected. In other words, the rotating rod 18 and the fixed sleeve 19 can rotate relative to each other, but the fixed sleeve 19 cannot slide along the axial direction of the rotating rod 18.

[0034] The length of the extension rod 2 can be adjusted according to the length of the wound. Press the connecting block 4, and the connecting block 4 will drive the card plate 10 and the card block 11 to move. The card block 11 will leave the card slot 12 located on the inner wall of the moving groove 3. Then the moving block 26 can drive the extension rod 2 to move to the required position. Release the connecting block 4, and the card block 11 will be driven to engage with the card slot 12 again by the reset elastic force of the first spring 13. The extension rod 2 cannot move.

[0035] When opening the wound, if it is necessary to temporarily adjust the opening distance, the second rotating rod 8 in the corresponding direction can be rotated. The connecting rod 14 drives the active gear plate 15 to rotate, which in turn causes the driven gear plate 16 to be forced to rotate the lead screw 9. The fixed rod 5 in the corresponding direction can then move on its own without needing to connect the fixed rod 5 at the other end to move. It is easy to use. This planar linkage-type incision opening device for abdominal surgery has the advantages of being easy to operate and being able to effectively deal with sudden surgical situations. It can be widely used.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A planar linkage-type incision opening device for abdominal surgery, comprising a support rod (1), a column (6), a fixing rod (5), and an extension rod (2), characterized in that: A column (6) is vertically installed in the center of the bottom end face of the support rod (1). The inside of the column (6) is hollow. A lead screw (9) is rotatably installed on both sides of the column (6). The lead screw (9) is horizontally symmetrically distributed and connected to a first gear (24) rotatably installed inside the lead screw (9). Two sets of the first gear (24) are arranged opposite each other and rotate synchronously with the lead screw (9). A moving block (26) is sleeved on the outside of the lead screw (9). A moving rod (28) is vertically installed on the upper surface of the moving block (26). The bottom of the moving rod (28) is connected to the fixed rod (5) and moves synchronously with the fixed rod (5). An extension rod (2) is also slidably provided at the bottom of the fixed rod (5). The extension rod (2) is parallel to the fixed rod (5). The fixed rod (5) is symmetrically provided in two sets, and the moving groove (3) is horizontally opened on the facing surface. One end of the connecting block (4) is inserted into the moving groove (3). The connecting block (4) has a U-shaped structure, and the other end is elastically connected to the side wall of the extension rod (2). One end of the connecting block (4) extending into the moving groove (3) is fixedly connected to the card plate (10). The card plate (10) facing the connecting block (4) also has a card block (11) protruding. The inner wall of the moving groove (3) is provided with a card groove (12) that matches the card block (11) at the same position as the card block (11). A first rotating rod (7) is provided through the center of the upper surface of the support rod (1). Two sets of second rotating rods (8) are symmetrically arranged on both sides of the first rotating rod (7). The bottom of the first rotating rod (7) passes through the column (6) and extends into the interior of the column (6) to be fixedly connected to the rotating rod (18). The end of the rotating rod (18) away from the first rotating rod (7) is provided with a first gear (24) that meshes with the two sets of opposing second gears (25).

2. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: A fixing sleeve (19) is also fitted on the outer wall of the rotating rod (18). The fixing sleeve (19) has an internal hollow circular structure. Connecting plates (20) are symmetrically fixed on both sides of the outer wall of the fixing sleeve (19). One end of the connecting plate (20) opposite to the first rotating rod (7) is connected to the second spring (21). The second spring (21) is vertically set, and one end away from the connecting plate (20) is fixedly connected to the upper surface of the bearing plate (22). The bearing plate (22) is welded and fixed to the inner wall of the column (6).

3. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The second rotating rod (8) is vertically connected to one end of the support rod (1) facing the lead screw (9) and to one end of the connecting rod (14). The other end of the connecting rod (14) is fixedly connected to the center of the end face of the active gear plate (15). The active gear plate (15) meshes with the driven gear plate (16). The driven gear plate (16) is located beside the active gear plate (15) and is perpendicular to it. The driven gear plate (16) is fixedly sleeved (19) outside the lead screw (9) and rotates synchronously with the lead screw (9).

4. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The end of the connecting block (4) away from the moving groove (3) extends into the insertion hole opened on the side wall of the extension rod (2). A first spring (13) is horizontally installed inside the insertion hole. The connecting block (4) is fixedly connected to one end of the first spring (13), and the other end of the first spring (13) is fixedly connected to the inside of the insertion hole.

5. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The support rod (1) has a horizontal groove (29) for sliding the slider (30) inside the moving block (26), and the slider (30) is fixedly connected to one end of the moving rod (28) on the surface of the moving block (26).

6. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The upper surface of the movable block (26) is fixedly connected to one end of the movable rod (28), and a threaded hole (27) for the lead screw (9) to pass through is provided inside the movable block (26).

7. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The fixed rod (5) also has a T-shaped limiting block protruding from the surface facing the extension rod (2), and the extension plate has a T-shaped limiting groove horizontally opened on the surface facing the limiting block for the limiting block to slide horizontally.

8. The planar linkage-type incision spreading device for abdominal surgery according to claim 1, characterized in that: The first rotating rod (7) and the second rotating rod (8) are both provided with anti-slip texture on the outer wall above the support rod (1).

Images