An adaptive incision shape incision dilator

Abstract

The utility model discloses a kind of incision dilators of self-adaptive incision shape, it is related to incision dilator technical field, including support plate, the bottom four corners of support plate are fixedly provided with support rod, the top of support plate is provided with connecting port, the top of connecting port is provided with expansion mechanism, the bottom of expansion mechanism is provided with two adjusting mechanism, the adjusting mechanism includes connecting plate, the side of connecting plate is rotatably connected with worm, the side of connecting plate is fixedly connected with two connecting frames, the inner wall of two connecting frames is rotatably connected with connecting shaft, the outer wall of connecting shaft is fixedly provided with worm wheel, the worm wheel is engaged with the worm, the same adjusting frame is fixedly connected with the top and bottom of the circumferential outer wall of connecting shaft, one end of adjusting frame is fixedly provided with connecting rod, the bottom of connecting rod is provided with expansion plate. The utility model is convenient for the expansion of different size incision.

Description

Technical Field

[0001] This utility model relates to the field of incision expander technology, and in particular to an incision expander that adapts to the shape of the incision. Background Technology

[0002] Incision dilators are typically adjustable-sized expansion instruments made of polymer materials such as metal or plastic. They are generally conical or cylindrical in shape and have multiple adjustable branches. Surgeons can insert them into narrow cavities or organs and then adjust the size of the dilator by means of inflation or twisting to expand and maintain the tissue or organ at the surgical site.

[0003] CN221808004U discloses an automatic incision dilator, belonging to the technical field of incision dilators. It includes a first outer shell, a first transmission chamber, a second outer shell, and a second transmission chamber. The first transmission chamber is located inside the first outer shell, and a positive and negative motor is fixedly connected inside the first transmission chamber. The beneficial effect of this automatic incision dilator is that, by setting a handle, a positive threaded column, a negative threaded column, a second rotating shaft, and a second threaded cap, when medical personnel need to dilate a surgical incision, they only need to drive the positive and negative threaded columns to rotate via the handle. With the cooperation of the positive and negative threaded columns and the second threaded cap, the fixed block carrying the dilation plate moves, thereby changing the distance between the two sets of dilation plates, thus achieving the purpose of dilating the surgical incision. This solves the problem that existing devices can only be used handheld, improving the practicality of the device.

[0004] However, similar to the incision expanders mentioned above, the width of the expansion plate cannot be adjusted during use. Therefore, when expanding incisions of different sizes, the expansion plate needs to be replaced, which is cumbersome and inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adaptive cut shape cut expander.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adaptive slit shape expander includes a support plate, with support rods fixedly installed at the four bottom corners of the support plate. A connection port is provided at the top of the support plate, and an expansion mechanism is installed at the top of the connection port. Two adjustment mechanisms are provided at the bottom of the expansion mechanism. Each adjustment mechanism includes a connecting plate, a worm gear rotatably connected to one side of the connecting plate, and two connecting frames fixedly connected to one side of the connecting plate. A connecting shaft is rotatably connected to the inner walls of the two connecting frames. A worm wheel is fixedly installed on the outer wall of the connecting shaft, meshing with the worm gear. The same adjustment frame is fixedly connected to the top and bottom of the circumferential outer wall of the connecting shaft. A connecting rod is fixedly installed at one end of the adjustment frame, and an expansion plate is installed at the bottom of the connecting rod.

[0008] The present invention is further configured such that a threaded groove is provided at the bottom of the connecting rod, a threaded rod is threadedly connected to the inner wall of the threaded groove, and an adjusting rod is fixedly provided at the bottom of the threaded rod.

[0009] The present invention is further configured such that the expansion plate is rotatably connected to the bottom of the adjusting rod, and the cross-section of the expansion plate is arc-shaped.

[0010] The present invention is further configured such that a knob is rotatably connected to one side of the connecting plate, and the knob is fixedly disposed between the knob and the worm gear.

[0011] The present invention is further configured such that the expansion mechanism includes two mounting plates fixedly connected to the top two sides of the support plate, and a bidirectional threaded screw is rotatably connected to the opposite side of the two mounting plates, and a slider is rotatably connected to both ends of the outer wall of the bidirectional threaded screw.

[0012] The present invention is further configured such that the same limiting rod is fixedly connected to the opposite side of the two mounting plates, and two limiting blocks are slidably arranged on the outer wall of the limiting rod. A moving hole adapted to the limiting rod is opened on one side of the limiting block, and the limiting rod is inserted into the moving hole.

[0013] The present invention is further configured such that the limiting block is fixedly connected to the slider, and the limiting block is fixedly connected to the connecting plate.

[0014] The present invention is further configured such that a folding handle is rotatably connected to one side of one of the mounting plates, and the folding handle is fixedly disposed between the folding handle and the bidirectional threaded screw.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. When using this adaptive incision shape expander, first place the support plate on the hospital bed, then adjust the size between the two expansion plates according to the shape of the incision. By turning the knob, the worm gear is driven to rotate, which in turn drives two worm wheels to rotate. When the worm wheels rotate, they drive two adjustment frames to adjust the angle, thereby adjusting the distance between the two expansion plates and positioning the expansion plates at both ends of the incision. Subsequently, the expansion mechanism drives the position of the two adjustment mechanisms to expand the incision, thus achieving the purpose of facilitating the expansion of different incision shapes.

[0017] 2. This adaptive cut shape expander, after adjusting the position of the expansion plate, can drive the bidirectional threaded screw to rotate via a folding handle. Under the limiting action of the limiting rod and the limiting block, the two sliders move on the bidirectional threaded screw, thereby driving the adjustment mechanism to move and expand the cut, making it easy to use.

[0018] 3. The adaptive cut shape expander, through the threaded rod and threaded groove, facilitates the adjustment of the length of the connecting rod, thereby increasing the applicability of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an adaptive cut shape expander proposed in this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of a cut expander expansion mechanism that adapts to the shape of the cut, as proposed in this utility model.

[0021] Figure 3 This is a three-dimensional structural schematic diagram of a cut expander adjustment mechanism that adapts to the cut shape, as proposed in this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of a cut expander knob that adapts to the shape of the cut, as proposed in this utility model.

[0023] In the diagram: 1. Support plate; 2. Connecting port; 3. Support rod; 4. Expansion mechanism; 401. Mounting plate; 402. Folding handle; 403. Two-way threaded screw; 404. Limiting rod; 405. Limiting block; 406. Moving hole; 407. Sliding block; 5. Adjustment mechanism; 501. Connecting plate; 502. Worm gear; 503. Connecting frame; 504. Worm wheel; 505. Connecting shaft; 506. Adjusting frame; 507. Connecting rod; 508. Threaded rod; 509. Adjusting rod; 510. Expansion plate; 6. Knob. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0026] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0027] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0028] Reference Figure 1-4 An adaptive incision shape expander includes a support plate 1. Support rods 3 are fixedly installed at the four bottom corners of the support plate 1. A connection port 2 is opened at the top of the support plate 1. An expansion mechanism 4 is installed at the top of the connection port 2. Two adjustment mechanisms 5 are installed at the bottom of the expansion mechanism 4. Each adjustment mechanism 5 includes a connecting plate 501. A worm gear 502 is rotatably connected to one side of the connecting plate 501. Two connecting brackets 503 are fixedly connected to one side of the connecting plate 501. The inner walls of the two connecting brackets 503 rotate. A connecting shaft 505 is connected, and a worm gear 504 is fixedly installed on the outer wall of the connecting shaft 505. The worm gear 504 meshes with the worm 502. The top and bottom of the circumferential outer wall of the connecting shaft 505 are fixedly connected to the same adjusting frame 506. A connecting rod 507 is fixedly installed at one end of the adjusting frame 506. An expansion plate 510 is installed at the bottom of the connecting rod 507. A knob 6 is rotatably connected to one side of the connecting plate 501. The knob 6 is fixedly installed between the knob and the worm 502. The worm 502 can be rotated by the knob 6.

[0029] Reference Figure 2The bottom of the connecting rod 507 is provided with a threaded groove, and the inner wall of the threaded groove is connected to a threaded rod 508 by a thread. An adjusting rod 509 is fixedly provided at the bottom of the threaded rod 508. The length of the connecting rod 507 can be easily adjusted through the threaded groove and the threaded rod 508, thereby increasing the applicability of the device. The expansion plate 510 is rotatably connected to the bottom of the adjusting rod 509. The cross-section of the expansion plate 510 is arc-shaped. The rotatable connection design makes it easy to adjust the angle of the expansion plate 510.

[0030] Reference Figure 2 and Figure 3 The expansion mechanism 4 includes two mounting plates 401 fixedly connected to the top sides of the support plate 1. A bidirectional threaded screw 403 is rotatably connected to the opposite side of the two mounting plates 401. Slider blocks 407 are rotatably connected to both ends of the outer wall of the bidirectional threaded screw 403. The bidirectional threaded screw 403 facilitates the driving of the two adjustment mechanisms 5 to expand the cut. A single limiting rod 404 is fixedly connected to the opposite side of the two mounting plates 401. Two limiting blocks 405 are slidably disposed on the outer wall of the limiting rod 404. One side of each limiting block 405 has a portion adapted to the limiting rod 404. The sliding hole 406 is used to limit the slider 407. The limiting rod 404 is inserted into the sliding hole 406. The limiting rod 404 and the sliding hole 406 are used to limit the slider 407. The limiting block 405 is fixedly connected to the slider 407 and the connecting plate 501. The slider 407 drives the limiting block 405 and the adjusting mechanism 5 to move. A folding handle 402 is rotatably connected to one side of one of the mounting plates 401. The folding handle 402 is fixedly set to the bidirectional threaded screw 403. The folding handle 402 is used to facilitate the rotation of the bidirectional threaded screw 403.

[0031] Working principle: When in use, first place the support plate 1 on the hospital bed, then adjust the size between the two expansion plates 510 according to the shape of the incision. By turning the knob 6, the worm gear 502 is driven to rotate, and the worm gear 502 drives the two worm wheels 504 to rotate. When the worm wheels 504 rotate, they drive the two adjustment frames 506 to adjust the angle, thereby adjusting the distance between the two expansion plates 510 and positioning the expansion plates 510 at both ends of the incision. Then, the position of the two adjustment mechanisms 5 is driven by the expansion mechanism 4 to expand the incision, thereby facilitating the expansion of different incision shapes.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slit expander with adaptive slit shape, comprising a support plate (1), wherein support rods (3) are fixedly disposed at the four bottom corners of the support plate (1), characterized in that, The support plate (1) has a connection port (2) at its top. An expansion mechanism (4) is provided at the top of the connection port (2). Two adjustment mechanisms (5) are provided at the bottom of the expansion mechanism (4). The adjustment mechanism (5) includes a connecting plate (501). A worm gear (502) is rotatably connected to one side of the connecting plate (501). Two connecting frames (503) are fixedly connected to one side of the connecting plate (501). A connecting shaft (505) is rotatably connected to the inner wall of the two connecting frames (503). A worm wheel (504) is fixedly provided on the outer wall of the connecting shaft (505). The worm wheel (504) meshes with the worm gear (502). The same adjustment frame (506) is fixedly connected to the top and bottom of the outer circumferential wall of the connecting shaft (505). A connecting rod (507) is fixedly provided at one end of the adjustment frame (506). An expansion plate (510) is provided at the bottom of the connecting rod (507).

2. The incision expander with adaptive incision shape according to claim 1, characterized in that, The bottom of the connecting rod (507) is provided with a threaded groove, and the inner wall of the threaded groove is connected to a threaded rod (508) by a thread. An adjusting rod (509) is fixedly provided at the bottom of the threaded rod (508).

3. The incision expander with adaptive incision shape according to claim 2, characterized in that, The expansion plate (510) is rotatably connected to the bottom of the adjusting rod (509), and the cross-section of the expansion plate (510) is arc-shaped.

4. The incision expander with adaptive incision shape according to claim 1, characterized in that, A knob (6) is rotatably connected to one side of the connecting plate (501), and the knob (6) is fixedly disposed between the worm gear (502).

5. The incision expander with adaptive incision shape according to claim 4, characterized in that, The expansion mechanism (4) includes two mounting plates (401) fixedly connected to the top sides of the support plate (1). A bidirectional threaded screw (403) is rotatably connected to the opposite side of the two mounting plates (401). A slider (407) is rotatably connected to both ends of the outer wall of the bidirectional threaded screw (403).

6. The incision expander with adaptive incision shape according to claim 5, characterized in that, The two mounting plates (401) are fixedly connected to the same limiting rod (404) on opposite sides. Two limiting blocks (405) are slidably arranged on the outer wall of the limiting rod (404). A moving hole (406) adapted to the limiting rod (404) is opened on one side of the limiting block (405). The limiting rod (404) is inserted into the moving hole (406).

7. A slit expander with adaptive slit shape according to claim 6, characterized in that, The limiting block (405) is fixedly connected to the slider (407), and the limiting block (405) is fixedly connected to the connecting plate (501).

8. A slit expander with adaptive slit shape according to claim 7, characterized in that, One of the mounting plates (401) is rotatably connected to a folding handle (402) on one side, and the folding handle (402) is fixedly disposed between the folding handle (402) and the bidirectional threaded screw (403).

Images