A sternum traction device for mediastinal tumor surgery

Abstract

The present invention belongs to the technical field of medical devices, and specifically relates to a sternum traction device for mediastinal tumor surgery, comprising a mounting frame, a driving unit is provided inside the mounting frame, a traction unit is provided at one end of the driving unit, two traction units are provided, one of which is provided inside the mounting frame, and the other is provided inside the driving unit; the traction unit is driven by the power of the driving unit itself to open and assemble and move, and the traction of the sternal incision is achieved through the movement of the traction unit; the traction unit comprises a fixed arm, a rotating seat, a locking block, an elastic extrusion member and a traction seat, one end of the fixed arm cooperates with the mounting frame and the inside of the driving unit, the rotating seat is provided at the other end of the fixed arm, and the locking block is slidably provided inside the fixed arm. The invention can quickly and accurately install the traction unit on the patient's sternum, and can separate the traction unit through the driving unit to open the incision, providing doctors with better operating space and vision.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a sternum traction device for mediastinal tumor surgery. Background Art

[0002] Mediastinal tumors are one of the common surgical diseases, including mediastinal neurogenic tumors, thymomas, mediastinal cysts, lymphangiomas, teratomas, etc., all of which originate from the mediastinum. Most of them are benign and have a good prognosis.

[0003] In clinical practice, surgical treatment is the preferred option for mediastinal tumors. Surgical treatment requires cutting the sternum, which is then fixed with a fixation device. The existing sternal traction devices on the market are highly traumatic to patients and have complicated operation procedures during installation and use. Summary of the invention

[0004] The purpose of the present invention is to provide a sternum traction device for mediastinal tumor surgery, which can quickly and accurately install the traction part on the patient's sternum, and can separate the traction part through a driving part to open the incision, providing doctors with better operating space and vision.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A sternum traction device for mediastinal tumor surgery comprises a mounting frame, a driving part is arranged inside the mounting frame, a traction part is arranged at one end of the driving part, two traction parts are arranged, one of the traction parts is arranged inside the mounting frame, and the other traction part is arranged inside the driving part;

[0007] The pulling part is driven by the power of the driving part to open and assemble;

[0008] The pulling part is inserted into the incision of the patient, and the movement of the pulling part can pull the incision, thereby providing the doctor with a better surgical field of view and operating space;

[0009] The pulling part includes a fixed arm, a rotating seat, a locking block, an elastic extrusion piece and a pulling seat, one end of the fixed arm cooperates with the interior of the mounting frame and the driving part, the rotating seat is arranged at the other end of the fixed arm, the locking block is slidably arranged inside the fixed arm, the elastic extrusion piece is arranged between the fixed arm and the locking block, and the pulling seat is arranged on one side of the rotating seat.

[0010] In a preferred embodiment, a fixing pin is provided at one end of the fixing arm, and an engaging groove matching with the fixing pin is provided inside the driving part and the mounting frame.

[0011] In a preferred embodiment, a rotating pin is arranged inside the lower end of the rotating seat, and a limiting groove matching with the rotating pin is opened inside the fixed arm.

[0012] In a preferred embodiment, a locking pin is further provided inside the lower end of the rotating seat, a locking groove matching with the locking pin is provided inside the fixed arm, and the locking block matches with the inside of the locking groove.

[0013] In a preferred solution, both sides of one end of the locking block are arranged as inclined surfaces, and the inclined surfaces cooperate with the locking pin.

[0014] In a preferred solution, two pulling seats are provided, and a plurality of support plates are provided on opposite sides of the two pulling seats, and the support plates can be assembled with each other.

[0015] In a preferred embodiment, when the two pulling seats are in contact with each other, the support plates at the lower ends of the two support plates can be combined into a guiding inclined surface, and the inclined surface matches the incision surface of the patient.

[0016] In a preferred embodiment, a load-bearing arc surface is provided in the middle of the support plate, and the load-bearing arc surface matches with the inside of the patient's incision.

[0017] In a preferred embodiment, the surface of the pulling seat is polished.

[0018] In a preferred embodiment, the driving part includes a flip cover, a driving motor, a driving gear, a driven gear, a driving screw, a driving block and a push button. The flip cover is rotatably arranged on the upper part of the mounting frame and is rotatably connected. The driving motor is fixedly connected to the interior of the flip cover. The tooth center of the driving gear is fixedly connected to the output end of the driving motor. The driven gear is rotatably arranged inside the flip cover, and the outer edge of the driven gear is meshed with the outer edge of the driving gear. The outer edge of the driving screw is threadedly connected to the tooth center of the driven gear. The driving block is fixedly connected to one end of the driving screw, and the internal fixing pin of the driving block cooperates. The push button is fixedly connected to the upper part of the flip cover, and the push button is electrically connected to the driving motor.

[0019] The technical effects achieved by the present invention are:

[0020] The present invention adopts the design of a driving part, and uses the power of the driving part to drive the pulling part to open and close, and through the movement of the pulling part, the human tissue at the incision of the patient is gradually stretched open, thereby providing doctors with a better surgical field of view and operating space;

[0021] The present invention adopts the design of the pulling part, and the pulling seat can be accurately inserted into the patient's body through the pulling part to provide support and limit for the opening of the incision, thereby ensuring the stability of the opening of the incision;

[0022] The present invention adopts the design of a fixed arm and a rotating seat, and the rotating seat can be disassembled and installed inside the fixed arm, so as to replace traction seats of different specifications to adapt to the traction conditions of different surgical incisions of patients and improve the flexibility of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of an overall expansion of an embodiment of the present invention;

[0025] Figure 3 is an overall side schematic diagram of an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of an overall side opening of an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of an embodiment of the present invention showing the flip cover opened;

[0028] Figure 6 is an exploded view of a pulling portion of an embodiment of the present invention;

[0029] Figure 7 is a bottom view of a rotating seat according to an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the installation of the rotating seat into the fixed arm of the embodiment of the present invention;

[0031] Fig. 9 Schematic diagram of a rotating pin entering a limiting groove according to an embodiment of the present invention;

[0032] Fig.10 is a schematic diagram of a locking pin entering a locking groove according to an embodiment of the present invention;

[0033] Fig.11 It is an exploded view of the driving part of an embodiment of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1. Mounting frame; 2. Driving unit; 201. Flip cover; 202. Driving motor; 203. Driving gear; 204. Driven gear; 205. Driving screw; 206. Driving block; 207. Press button; 3. Pulling unit; 301. Fixed arm; 3011. Fixed pin; 3012. Limiting groove; 3013. Locking groove; 302. Rotating seat; 3021. Rotating pin; 3022. Locking pin; 303. Locking block; 304. Elastic extrusion piece; 305. Pulling seat; 3051. Support plate. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0040] See also Figures 1 to 11 As shown, the present invention provides a sternum traction device for mediastinal tumor surgery, comprising a mounting frame 1, a driving part 2 is arranged inside the mounting frame 1, a traction part 3 is arranged at one end of the driving part 2, and two traction parts 3 are arranged, one of which is arranged inside the mounting frame 1, and the other is arranged inside the driving part 2;

[0041] The driving part 2 drives the pulling part 3 to open and close by its own power;

[0042] The pulling part 3 is inserted into the incision of the patient, and the movement of the pulling part 3 can pull the incision, thereby providing the doctor with a better surgical field of view and operating space;

[0043] The pulling part 3 includes a fixed arm 301, a rotating seat 302, a locking block 303, an elastic extrusion piece 304 and a pulling seat 305. One end of the fixed arm 301 cooperates with the interior of the mounting frame 1 and the driving part 2, the rotating seat 302 is arranged at the other end of the fixed arm 301, the locking block 303 is slidably arranged inside the fixed arm 301, the elastic extrusion piece 304 is arranged between the fixed arm 301 and the locking block 303, and the pulling seat 305 is arranged on one side of the rotating seat 302.

[0044] Specifically, when the incision on the patient's sternum needs to be pulled, the entire device needs to be placed on the incision, and the lower end of the pulling seat 305 in the assembled state needs to be inserted into the patient's body, and the fixed arm 301 needs to be driven to move by the driving unit 2, so that the fixed arm 301 drives the pulling seat 305 matched therewith to move together, so that the pulling seat 305 in the assembled state gradually opens, so that the human tissue at the incision is gradually stretched, thereby providing the doctor with a better surgical field of view and operating space;

[0045] The traction seat 305 is provided with a variety of different specifications. Before the operation is required, a suitable traction seat 305 is selected according to the patient's condition to adapt to different traction conditions of surgical incisions and improve the flexibility of the equipment.

[0046] The rotating seat 302 and the pulling seat 305 are installed at the other end of the fixed arm 301. At this time, the locking block 303 is squeezed by the elastic squeezing member 304 and is in an extended state. The rotating seat 302 is fixed inside the fixed arm 301 by the extension of the locking block 303, so that the rotating seat 302 can be easily installed;

[0047] When the rotating seat 302 needs to be disassembled, it is only necessary to rotate the rotating seat 302 to squeeze the locking block 303, so that the locking block 303 shrinks into the interior of the fixed arm 301, and the rotating seat 302 is continued to be rotated to squeeze and disassemble the rotating seat 302 and move it out of the interior of the fixed arm 301, thereby realizing the convenient disassembly of the rotating seat 302; the convenient disassembly of the rotating seat 302 improves the convenience of equipment maintenance and reduces the workload of medical staff.

[0048] See also Figures 6 to 10 As shown, a fixing pin 3011 is provided at one end of the fixing arm 301, and an engaging groove matching with the fixing pin 3011 is provided inside the driving part 2 and the mounting frame 1. The fixing pin 3011 at one end of the fixing arm 301 is inserted into the mounting frame 1 and the driving block 206 for installation, and the fixing pin 3011 can be limited inside the mounting frame 1 and the driving block 206 for fixing by closing the flip cover 201 on the upper part of the mounting frame 1;

[0049] At the same time, by opening the flip cover 201 on the upper part of the installation frame 1, the limiting fixation of the fixing pin 3011 inside the installation frame 1 and the drive block 206 can be released. At this time, the fixing arm 301 can be taken out of the installation frame 1 and the drive block 206, further improving the convenience of equipment maintenance.

[0050] See also Figures 6 to 10 As shown, a rotating pin 3021 is disposed inside the lower end of the rotating seat 302, and a limiting groove 3012 matching with the rotating pin 3021 is opened inside the fixed arm 301, and the limiting groove 3012 is opened in a horizontal shape;

[0051] When the rotating seat 302 is installed at the other end of the fixed arm 301, the middle part of the rotating seat 302 is first inserted into the interior of the fixed arm 301, and the rotating pin 3021 is moved to the limiting groove 3012, and then the rotating seat 302 is pushed to insert the rotating pin 3021 into the interior of the limiting groove 3012, and then the rotating seat 302 is rotated with the rotating pin 3021 until the rotating seat 302 is horizontally matched with the fixed arm 301.

[0052] See also Figures 6 to 10 As shown, a locking pin 3022 is further provided inside the lower end of the rotating seat 302, and a locking groove 3013 matching with the locking pin 3022 is provided inside the fixed arm 301, the locking groove 3013 is provided in an arc shape, and the locking block 303 matches with the inside of the locking groove 3013;

[0053] When the rotating seat 302 rotates with the rotating pin 3021 as the axis, the locking pin 3022 of the rotating seat 302 can enter the interior of the locking groove 3013, so that the locking pin 3022 can squeeze the locking block 303, so that the locking block 303 shrinks and enters the interior of the fixed arm 301 until the rotating seat 302 rotates to a position horizontally matching the fixed arm 301. At this time, the locking pin 3022 enters deep into the locking groove 3013, and the locking block 303 loses the squeezing of the locking pin 3022 and extends out again, fixing the locking pin 3022 inside the locking groove 3013.

[0054] See also Figures 6 to 10 As shown, both sides of one end of the locking block 303 are set as inclined surfaces, and the inclined surfaces cooperate with the locking pin 3022. The set inclined surfaces enable the locking pin 3022 to squeeze the locking block 303 more conveniently and labor-savingly into the interior of the fixed arm 301 by squeezing the inclined surfaces.

[0055] See also Figures 1 to 10 As shown, two pulling seats 305 are provided, and a plurality of support plates 3051 are provided on opposite sides of the two pulling seats 305. The support plates 3051 can be spliced ​​with each other. Through the splicing between the pulling seats 305, the volume can be smaller before insertion into the incision, making it more convenient to insert into the incision.

[0056] See also Figure 3 As shown, when the two traction seats 305 are in contact with each other, the support plates 3051 at the lower ends of the two can be combined into a guiding slope, which cooperates with the incision surface of the patient. The guiding slope provides structural guidance for the traction seat 305 to be inserted into the patient's incision, thereby improving the accuracy of insertion.

[0057] See also Figure 3 and Figure 4As shown, a bearing arc surface is provided in the middle of the support plate 3051, and the bearing arc surface cooperates with the inside of the patient's incision. Through the large-area contact between the bearing arc surface and the inside of the incision, better support is provided for the support plate 3051 to move together with the traction seat 305, thereby improving the stability of the expansion.

[0058] See also Figure 1 As shown, the pulling seat 305 is made of stainless steel and is polished. Stainless steel does not contain chemicals harmful to the human body and is easy to disinfect and clean. At the same time, the smooth surface treatment can reduce damage to the skin.

[0059] See also Figures 1 to 5 as well as Fig.11 As shown, the driving unit 2 includes a flip cover 201, a driving motor 202, a driving gear 203, a driven gear 204, a driving screw 205, a driving block 206 and a pressing button 207. The flip cover 201 is rotatably arranged on the upper part of the mounting frame 1 and is rotatably connected. The driving motor 202 is fixedly connected to the inside of the flip cover 201. The tooth center of the driving gear 203 is fixedly connected to the output end of the driving motor 202. The driven gear 204 is rotatably arranged inside the flip cover 201, and the outer edge of the driven gear 204 is meshed with the outer edge of the driving gear 203. The outer edge of the driving screw 205 is threadedly connected to the tooth center of the driven gear 204. The driving block 206 is fixedly connected to one end of the driving screw 205. The internal fixing pin 3011 of the driving block 206 cooperates. The pressing button 207 is fixedly connected to the upper part of the flip cover 201, and the pressing button 207 is electrically connected to the driving motor 202.

[0060] The driving motor 202 is powered by pressing the trigger button 207, and the driving motor 202 drives the driving gear 203 to rotate. The rotation of the driving gear 203 drives the meshing driven gear 204 to rotate together. The rotation of the driven gear 204 drives the driving screw 205 connected to the internal thread thereof to move horizontally. The movement of the driving screw 205 drives the driving block 206 to slide inside the mounting frame 1. At this time, the driving block 206 drives the corresponding pulling part 3 to move, so that the two pulling parts 3 are separated and opened, and the incision of the patient is stretched open.

[0061] The interior of the installation frame 1 can be exposed by rotating the flip cover 201 so that the pulling part 3 can be maintained more conveniently.

[0062] The working principle of the present invention is as follows: when the incision at the sternum of the patient needs to be pulled, the device as a whole needs to be placed at the incision, and the lower end of the pulling seat 305 in the assembled state needs to be inserted into the patient's body, and the fixed arm 301 needs to be driven to move by the driving part 2, so that the fixed arm 301 drives the pulling seat 305 matched therewith to move together, so that the pulling seat 305 in the assembled state gradually opens, so that the human tissue at the incision is gradually stretched, thereby providing the doctor with a better surgical field of view and operating space;

[0063] The traction seat 305 is provided with a variety of different specifications. Before the operation is required, a suitable traction seat 305 is selected according to the patient's condition to adapt to different traction conditions of surgical incisions and improve the flexibility of the equipment.

[0064] The rotating seat 302 and the pulling seat 305 are installed at the other end of the fixed arm 301. At this time, the locking block 303 is squeezed by the elastic squeezing member 304 and is in an extended state. The rotating seat 302 is fixed inside the fixed arm 301 by the extension of the locking block 303, so that the rotating seat 302 can be easily installed;

[0065] When the rotating seat 302 needs to be disassembled, it is only necessary to rotate the rotating seat 302 to squeeze the locking block 303, so that the locking block 303 shrinks into the interior of the fixed arm 301, and the rotating seat 302 is continued to be rotated to squeeze and disassemble the rotating seat 302 and move it out of the interior of the fixed arm 301, thereby realizing the convenient disassembly of the rotating seat 302; the convenient disassembly of the rotating seat 302 improves the convenience of equipment maintenance and reduces the workload of medical staff.

[0066] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A sternum traction device for mediastinal tumor surgery, characterized in that: The invention comprises a mounting frame (1), wherein a driving part (2) is provided inside the mounting frame (1), a pulling part (3) is provided at one end of the driving part (2), and two pulling parts (3) are provided, wherein one of the pulling parts (3) is provided inside the mounting frame (1), and the other of the pulling parts (3) is provided inside the driving part (2); The pulling part (3) is driven by the power of the driving part (2) to open and assemble; The pulling portion (3) is inserted into the incision of the patient, and the movement of the pulling portion (3) can pull the incision, thereby providing the doctor with a better surgical field of view and operating space; The pulling portion (3) comprises a fixed arm (301), a rotating seat (302), a locking block (303), an elastic extrusion piece (304) and a pulling seat (305); one end of the fixed arm (301) cooperates with the inside of the mounting frame (1) and the driving portion (2); the rotating seat (302) is arranged at the other end of the fixed arm (301); the locking block (303) is slidably arranged inside the fixed arm (301); the elastic extrusion piece (304) is arranged between the fixed arm (301) and the locking block (303); and the pulling seat (305) is arranged on one side of the rotating seat (302); A rotating pin (3021) is disposed inside the lower end of the rotating seat (302), and a limiting groove (3012) matching with the rotating pin (3021) is provided inside the fixed arm (301); A locking pin (3022) is further provided inside the lower end of the rotating seat (302); a locking groove (3013) matching with the locking pin (3022) is provided inside the fixed arm (301); the locking block (303) matches with the inside of the locking groove (3013); and the locking groove (3013) is provided in an arc shape; Both sides of one end of the locking block (303) are arranged as inclined surfaces, and the inclined surfaces cooperate with the locking pin (3022). When the rotating seat (302) rotates with the rotating pin (3021) as the axis, the locking pin (3022) of the rotating seat (302) can enter the interior of the locking groove (3013).

2. A sternum traction device for mediastinal tumor surgery according to claim 1, characterized in that: A fixing pin (3011) is provided at one end of the fixing arm (301), and an engaging groove matching the fixing pin (3011) is provided inside the driving part (2) and the mounting frame (1).

3. The sternum traction device for mediastinal tumor surgery according to claim 1, characterized in that: Two pulling seats (305) are provided, and a plurality of support plates (3051) are provided on opposite sides of the two pulling seats (305), and the support plates (3051) can be assembled with each other.

4. A sternum traction device for mediastinal tumor surgery according to claim 3, characterized in that: When the two pulling seats (305) are in contact with each other, the support plates (3051) at the lower ends of the two support plates (3051) can be combined into a guiding inclined surface, and the inclined surface matches the incision surface of the patient.

5. The sternum traction device for mediastinal tumor surgery according to claim 3, characterized in that: A load-bearing arc surface is provided in the middle of the support plate (3051), and the load-bearing arc surface cooperates with the inside of the patient's incision.

6. The sternum traction device for mediastinal tumor surgery according to claim 1, characterized in that: The surface of the pulling seat (305) is polished.

7. The sternum traction device for mediastinal tumor surgery according to claim 1, characterized in that: The driving part (2) comprises a flip cover (201), a driving motor (202), a driving gear (203), a driven gear (204), a driving screw (205), a driving block (206) and a firing button (207); the flip cover (201) is rotatably arranged on the upper part of the mounting frame (1) and is rotatably connected; the driving motor (202) is fixedly connected to the inside of the flip cover (201); the tooth center of the driving gear (203) is fixedly connected to the output end of the driving motor (202); and the driven gear (204) is rotatably arranged on the upper part of the mounting frame (1). The invention is arranged inside the flip cover (201), and the outer edge of the driven gear (204) meshes with the outer edge of the driving gear (203), the outer edge of the driving screw (205) is threadedly connected to the tooth center of the driven gear (204), the driving block (206) is fixedly connected to one end of the driving screw (205), the internal fixing pin (3011) of the driving block (206) cooperates, the firing button (207) is fixedly connected to the upper part of the flip cover (201), and the firing button (207) is electrically connected to the driving motor (202).

Images