A thoracic surgical dilation device

Abstract

The application discloses a thoracic surgery expansion device, which comprises a mounting rack, a fixed arm is fixedly arranged at one end of the mounting rack, a movable arm is movably arranged on the mounting rack, an adjusting piece is arranged in the movable arm, hooks are arranged at the ends of the fixed arm and the movable arm, and hook claws are movably arranged on the fixed arm and the movable arm. The thoracic surgery expansion device is in transmission connection with the transmission part, the hook can be used for supporting the ribs to facilitate the operation of a doctor during the surgery, when the surgery is finished and the chest is closed, the transmission part can drive the hook and the hook claw to move, the hook is separated from the ribs, the hook claw is clamped on the side of the ribs, the adjusting piece drives the hook claw to assist the ribs to be combined, and guide parts are further arranged on the fixed arm and the movable arm, the guide parts can assist the steel wire to pass through the ribs when the hook claw combines the ribs, and the doctor can easily bind.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a thoracic surgical expansion device. Background Technology

[0002] In thoracic surgery, it is often necessary to make incisions between the ribs and use rib retractors to open them. Currently, the commonly known rib retractors include a fixed retractor arm, a movable retractor arm, a mounting plate, and a retractor mechanism. The fixed retractor arm and the movable retractor arm are arranged parallel to each other and connected to the same mounting plate. The fixed retractor arm and the movable retractor arm can move closer to each other or further away from each other under the action of the retractor mechanism. A first rib hook is installed on the fixed retractor arm, and a second rib hook is installed on the movable retractor arm. In use, the first rib hook and the second rib hook are hooked between the two ribs that need to be retracted. When the two retractor arms move away from each other, the ribs are retracted.

[0003] However, in a complete surgical procedure, the role of the retractor is only to open the ribs. When closing the ribs after the operation, the retractor can hardly provide any assistance. After the doctor spends a lot of effort to remove the retractor, other tools are even needed to fix and merge the ribs, which is time-consuming, laborious and extremely troublesome, seriously delaying the surgical process. Therefore, we propose a thoracic surgical expansion device. Summary of the Invention

[0004] The purpose of this invention is to provide a thoracic surgical expansion device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a thoracic surgical expansion device, comprising a mounting rack, a fixed arm fixedly mounted at one end of the mounting rack, a movable arm movably mounted on the mounting rack, an adjusting member disposed within the movable arm for driving the movable arm to move on the mounting rack, hooks provided at the ends of both the fixed arm and the movable arm, and further comprising:

[0006] The hook claws are provided in two and are respectively movably mounted on the fixed arm and the movable arm, to assist in the fusion of ribs during chest closure;

[0007] The transmission part is provided in the cavity of both the fixed arm and the movable arm. The transmission part is disposed in the cavity and is connected to the hook and the pawl to drive them to move on the fixed arm and the movable arm.

[0008] A drive unit, which is disposed in the cavity, is used to drive the transmission unit to move;

[0009] The guide section has two sets, which are respectively set on the fixed arm and the movable arm, and are used to guide the steel wire during the chest closing process to facilitate binding.

[0010] Preferably, the movable arm has a movable groove, and the adjusting component includes a positioning rod movably disposed in the movable groove. The positioning rod is L-shaped and its end is inserted into the tooth groove of the mounting rack. A positioning spring is provided at the bottom of the positioning rod, and the two ends of the positioning spring are fixedly connected to the side wall of the movable groove and the positioning rod, respectively. A moving component for driving the positioning rod to move is also provided in the movable groove.

[0011] Preferably, the movable component includes a rotating shaft rotatably mounted on the movable arm, a cam is provided at one end of the rotating shaft located in the movable groove, a torsion spring is provided on the outside of the rotating shaft, the two ends of the torsion spring are fixedly connected to the cam and the side wall of the movable groove respectively, and a handle is provided at one end of the rotating shaft located on the outside of the movable arm.

[0012] Preferably, the transmission unit includes two transmission shafts that are rotatably disposed on both sides of the cavity. Each transmission shaft has a pulley on its outer side, a belt on its outer side, and a transmission gear on its outer side. The hook and the pawl are each provided with a transmission rack that meshes with the transmission gear.

[0013] Preferably, the drive unit includes a worm gear rotatably disposed on the outside of any one of the drive shafts, and a worm gear rotatably disposed in the cavity and meshing with the worm gear. The worm gear rotatably passes through the fixed arm and the movable arm and has a knob at its end.

[0014] Preferably, the knob has anti-slip texture on its outer side.

[0015] Preferably, the guide part includes a guide tube that is movably inserted into the fixed arm and the movable arm. A connecting plate is provided at the top of the guide tube, and a side groove for the steel wire to pass through is provided on one side of both the guide tube and the connecting plate. A through groove is provided on both the fixed arm and the movable arm, and the through groove communicates with the side groove.

[0016] Preferably, multiple guide tubes are arranged linearly on the fixed arm and the movable arm, and each guide tube is fixedly connected to a connecting plate on the same side thereon.

[0017] Preferably, magnetic blocks are embedded in the top of the fixed arm and the movable arm, as well as the bottom of the connecting plate, and the magnetic blocks located at the bottom of the connecting plate attract each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This thoracic surgical dilatation device features hooks and claws connected to a transmission unit. During surgery, the hooks can open the ribs to facilitate the surgeon's operation. When closing the chest at the end of the surgery, the transmission unit moves the hooks and claws, causing the hooks to disengage from the ribs while the claws engage with the sides of the ribs. An adjustment mechanism then moves the claws to assist in rib closure. Guide sections are also provided on the fixed and movable arms, allowing the wires to be routed around the ribs as the claws close them, facilitating ligation by the surgeon. Throughout the entire surgical procedure, multiple operations can be performed using a single dilatator, making it extremely convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Another structural diagram;

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the side section structure;

[0023] Figure 4 This is a schematic diagram of the hook structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the hook structure of the present invention;

[0025] Figure 6 This is a partial cross-sectional view of the movable arm of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0027] Figure 8 This is a partial cross-sectional view of the fixed arm structure of the present invention;

[0028] Figure 9 For the present invention Figure 8 Another structural diagram;

[0029] Figure 10 This is a schematic diagram of the partially exploded structure of the fixed arm of the present invention;

[0030] Figure 11 This is a schematic diagram of the guide section structure of the present invention.

[0031] In the diagram: 1-Rack mounting; 2-Fixed arm; 3-Moving arm; 4-Adjusting component; 41-Moving groove; 42-Positioning rod; 43-Positioning spring; 5-Moving component; 51-Rotating shaft; 52-Cam; 53-Torsion spring; 54-Handle; 6-Transmission unit; 61-Transmission shaft; 62-Transmission gear; 63-Transmission rack; 7-Drive unit; 71-Worm gear; 72-Worm; 73-Knob; 8-Guide unit; 81-Guide tube; 82-Connecting plate; 83-Side groove; 84-Through groove; 85-Magnetic block; 9-Hook; 10-Claw. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-11 The present invention provides a technical solution: a thoracic surgical expansion device, comprising a mounting rack 1, a fixed arm 2 fixedly mounted at one end of the mounting rack 1, a movable arm 3 movably mounted on the mounting rack 1, an adjusting member 4 disposed within the movable arm 3 for driving the movable arm 3 to move on the mounting rack 1, and hooks 9 disposed at the ends of both the fixed arm 2 and the movable arm 3, and further comprising:

[0034] Hook 10, two hooks 10 are provided and are respectively movably mounted on fixed arm 2 and movable arm 3, to assist in rib merging during chest closure;

[0035] The transmission part 6, the fixed arm 2 and the movable arm 3 are all provided with cavities. The transmission part 6 is set in the cavity and is connected to the hook 10 and the hook 9 for transmission, so as to drive the two to move on the fixed arm 2 and the movable arm 3.

[0036] The drive unit 7 is disposed in the cavity and is used to drive the transmission unit 6 to move.

[0037] The guide section 8 is provided in two sets, which are respectively set on the fixed arm 2 and the movable arm 3, and are used to guide the steel wire during the chest closing process to facilitate binding.

[0038] The movable arm 3 has a movable groove 41. The adjusting component 4 includes a positioning rod 42 that is movably disposed in the movable groove 41. The positioning rod 42 is L-shaped and its end is engaged with the tooth groove of the mounting rack 1. A positioning spring 43 is provided at the bottom of the positioning rod 42. The two ends of the positioning spring 43 are fixedly connected to the side wall of the movable groove 41 and the positioning rod 42, respectively. A moving component 5 for driving the positioning rod 42 to move is also provided in the movable groove 41.

[0039] The movable part 5 includes a rotating shaft 51 rotatably mounted on the movable arm 3. A cam 52 is provided at one end of the rotating shaft 51 located in the movable groove 41. A torsion spring 53 is provided on the outside of the rotating shaft 51. The two ends of the torsion spring 53 are fixedly connected to the cam 52 and the side wall of the movable groove 41, respectively. A handle 54 is provided at one end of the rotating shaft 51 located on the outside of the movable arm 3.

[0040] In use, holding the handle 54 will rotate the rotating shaft 51, which in turn drives the cam 52 to rotate. When the cam 52 rotates, it presses the positioning rod 42 and moves it downward, thereby causing the positioning rod 42 to disengage from the tooth groove of the mounting rack 1. At this time, the movable arm 3 can move on the mounting rack 1, thereby adjusting the distance between the fixed arm 2 and the movable arm 3. When the adjustment is finished, release the handle 54. Under the action of the torsion spring 53, the cam 52 returns to its original position and no longer presses the positioning rod 42. Under the action of the positioning spring 43, the positioning rod 42 re-engages with the tooth groove of the mounting rack 1.

[0041] The transmission unit 6 includes two transmission shafts 61 that are rotatably disposed on both sides of the cavity. Each transmission shaft 61 has a pulley on its outer side and a belt on its outer side, which can realize the synchronous rotation of the two transmission shafts 61 through belt drive. A transmission gear 62 is also disposed on the outer side of the transmission shaft 61. Both the hook 9 and the pawl 10 are provided with a transmission rack 63 that meshes with the transmission gear 62.

[0042] The drive unit 7 includes a worm gear 71 rotatably disposed on the outside of any one of the transmission shafts 61, and a worm 72 rotatably disposed in the cavity and meshing with the worm gear 71. The worm 72 rotatably passes through the fixed arm 2 and the movable arm 3 and has a knob 73 at its end.

[0043] During use, when the hook 9 needs to be used to open the ribs, the knob 73 is turned to drive the worm gear 72 to rotate, which in turn drives the worm wheel 71 to rotate, which in turn drives the transmission shaft 61 to rotate. The two transmission shafts 61 rotate synchronously through belt drive, which drives the transmission gear 62 to rotate and mesh with the transmission rack 63, thereby driving the transmission rack 63 to move. Depending on the direction of the knob 73 rotation, when the knob 73 rotates in one direction, it can drive the hook 9 to move downward, at which time the hook pawl 10 moves upward. When this is used to open the ribs, the hook 9 hooks the ribs, and then the movable arm 3 moves to open the ribs. When the knob 73 rotates in the opposite direction, the hook 9 moves upward, and the hook pawl 10 moves downward to hook the ribs. When this is used to close the chest, the movable arm 3 drives the hook pawl 10 to move towards the fixed arm 2, thereby closing the sternum.

[0044] The knob 73 has anti-slip texture on the outside for gripping during use.

[0045] The guide section 8 includes a guide tube 81 that is movably inserted into the fixed arm 2 and the movable arm 3. A connecting plate 82 is provided at the top of the guide tube 81, and a side groove 83 for the steel wire to pass through is provided on one side of both the guide tube 81 and the connecting plate 82. A through groove 84 is provided on both the fixed arm 2 and the movable arm 3, and the through groove 84 communicates with the side groove 83.

[0046] Multiple guide tubes 81 are provided on the fixed arm 2 and the movable arm 3 in a linear arrangement, and each guide tube 81 is fixedly connected to the connecting plate 82 on the same side thereon.

[0047] After closing the chest, the guide tube 81 is inserted into the fixed arm 2 and the movable arm 3. Then the steel wire passes through the guide tube 81, with the end of the steel wire always abutting against the inner wall of the guide tube 81, so that the end of the steel wire goes around the rib along the guide tube 81. Then the doctor ties the two ends of the newly stricken body.

[0048] Magnetic blocks 85 are embedded in the top of the fixed arm 2 and the movable arm 3, as well as the bottom of the connecting plate 82. The magnetic blocks 85 located at the bottom of the connecting plate 82 attract each other. The setting of the magnetic blocks 85 makes the guide tube 81 more stably installed on the fixed arm 2 and the movable arm 3.

[0049] In summary, during use, the hook 9 first hooks the middle of the rib, then the movable arm 3 moves to open and lock the rib with the hook 9. When closing the chest, the knob 73 is turned, which drives the worm gear 72 to rotate. The worm gear 72 drives the worm wheel 71 to rotate, which in turn drives the transmission shaft 61 to rotate. The two transmission shafts 61 rotate synchronously via belt drive, driving the transmission gear 62 to rotate and mesh with the transmission rack 63. This drives the transmission rack 63 to move, which in turn moves the hook 9 upwards and the hook claw 10 downwards. The hook claw 10 then hooks the side of the rib, and the movable arm 3 moves towards the fixed arm 2, causing the hook claw 10 to hook the rib and close it. After closing the chest, the guide tube 81 is inserted into the fixed arm 2 and the movable arm 3. Then, a steel wire passes through the guide tube 81, with the end of the wire always abutting against the inner wall of the guide tube 81, allowing the end of the wire to wrap around the rib along the guide tube 81. The doctor then ties the two ends of the rib. Throughout the entire surgical procedure, multiple operations can be performed using a single expander, making it very convenient.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thoracic surgical expansion device, comprising a mounting rack (1), a fixed arm (2) fixedly mounted at one end of the mounting rack (1), a movable arm (3) movably mounted on the mounting rack (1), an adjusting member (4) disposed within the movable arm (3) for driving the movable arm (3) to move on the mounting rack (1), and hooks (9) disposed at the ends of both the fixed arm (2) and the movable arm (3), characterized in that: It also includes: Two hooks (10) are provided and are respectively movably mounted on the fixed arm (2) and the movable arm (3) to assist the ribs in closing the chest. The transmission part (6) is provided in the cavity of both the fixed arm (2) and the movable arm (3). The transmission part (6) is located in the cavity and is connected to the hook (10) and the hook (9) for driving them to move on the fixed arm (2) and the movable arm (3). A drive unit (7) is disposed in the cavity and is used to drive the transmission unit (6) to move. The guide part (8) is provided in two sets, and is respectively provided on the fixed arm (2) and the movable arm (3) to guide the steel wire during the chest closing process for easy binding.

2. The thoracic surgical expansion device according to claim 1, characterized in that: The movable arm (3) has a movable groove (41) inside. The adjusting component (4) includes a positioning rod (42) movably disposed in the movable groove (41). The positioning rod (42) is L-shaped and its end is inserted into the tooth groove of the mounting rack (1). A positioning spring (43) is provided at the bottom of the positioning rod (42). The two ends of the positioning spring (43) are fixedly connected to the side wall of the movable groove (41) and the positioning rod (42) respectively. A moving component (5) for driving the positioning rod (42) to move is also provided in the movable groove (41).

3. The thoracic surgical expansion device according to claim 2, characterized in that: The movable component (5) includes a rotating shaft (51) rotatably mounted on the movable arm (3). A cam (52) is provided at one end of the rotating shaft (51) located in the movable groove (41). A torsion spring (53) is provided on the outside of the rotating shaft (51). The two ends of the torsion spring (53) are fixedly connected to the cam (52) and the side wall of the movable groove (41) respectively. A handle (54) is provided at one end of the rotating shaft (51) located on the outside of the movable arm (3).

4. The thoracic surgical expansion device according to claim 3, characterized in that: The transmission unit (6) includes two transmission shafts (61) that are rotatably disposed on both sides of the cavity. Each transmission shaft (61) has a pulley on its outer side and a belt on its outer side. A transmission gear (62) is also disposed on the outer side of the transmission shaft (61). Both the hook (9) and the claw (10) are provided with a transmission rack (63) that meshes with the transmission gear (62).

5. A thoracic surgical expansion device according to claim 4, characterized in that: The drive unit (7) includes a worm gear (71) rotatably disposed outside any one of the transmission shafts (61), and a worm (72) rotatably disposed inside the cavity and meshing with the worm gear (71). The worm (72) rotatably passes through the fixed arm (2) and the movable arm (3) and has a knob (73) at its end.

6. A thoracic surgical expansion device according to claim 5, characterized in that: The knob (73) has anti-slip texture on the outside.

7. A thoracic surgical expansion device according to claim 6, characterized in that: The guide part (8) includes a guide tube (81) that is movably inserted into the fixed arm (2) and the movable arm (3). A connecting plate (82) is provided on the top of the guide tube (81), and a side groove (83) for steel wire to pass through is provided on one side of both the guide tube (81) and the connecting plate (82). A through groove (84) is provided on both the fixed arm (2) and the movable arm (3), and the through groove (84) communicates with the side groove (83).

8. A thoracic surgical expansion device according to claim 7, characterized in that: Multiple guide tubes (81) are arranged linearly on the fixed arm (2) and the movable arm (3), and each guide tube (81) is fixedly connected to the connecting plate (82) on the same side thereon.

9. A thoracic surgical expansion device according to claim 8, characterized in that: The top of the fixed arm (2) and the movable arm (3) and the bottom of the connecting plate (82) are all equipped with magnetic blocks (85), and the magnetic blocks (85) located at the bottom of the connecting plate (82) attract each other with other magnetic blocks (85).

Images