Thoracic cavity supporting device for operation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a thoracic cavity supporting device for operation, which comprises a cylinder body, and the inner wall of the cylinder body is fixedly connected with an isolating membrane; the expansion mechanism is arranged in the cylinder body, the expansion mechanism comprises two expansion plates which are slidably installed on the two sides of the interior of the cylinder body respectively, and the bottoms of the expansion plates are fixedly connected with air bags; and the clamping mechanism comprises a clamping assembly rotationally connected to the outer wall of the cylinder body, and a lifting ring is arranged below the clamping assembly. The isolation membrane can be driven to contract and expand through the expansion plate of the expansion mechanism, the isolation membrane can conveniently penetrate through a surgical incision, the supporting convenience is improved, surgical instruments such as surgical forceps can be clamped through the clamping assembly of the clamping mechanism, after the air bag is inflated and expanded, the surgical incision can be conveniently supported and expanded, and the operation efficiency is improved. And surgical instruments can be conveniently supported and fixed.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a chest support device for surgery. Background Art

[0002] During thoracic surgery, several surgical incisions are usually made on the patient's chest, and surgical instruments such as surgical forceps that are in the shape of a long rod are inserted into the patient's chest through these surgical incisions to perform surgical operations such as excision of patient tissue. In order for the surgical instruments to pass through the surgical incision smoothly, a surgical chest support device is usually used to support and expand the surgical incision, so that the shape of the expanded surgical incision is approximately elliptical. The surgical chest support device usually consists of an isolation membrane and an upper ring and a lower ring connected to the upper and lower ends of the isolation membrane respectively. When used, the lower ring is placed inside the chest cavity, so that the lower ring and the upper ring are respectively fitted with the chest wall from the inside and outside. Since the isolation membrane is elastic, the isolation membrane is stretched outward with the lower ring and the upper ring and fits with the inner side of the surgical incision, thereby achieving support and expansion. The isolation membrane separates the inner side of the surgical incision from the surgical instruments, and plays a certain protective role for the surgical incision.

[0003] During use of the existing surgical chest support device, it is generally necessary to pass the lower ends of the lower ring and the isolation membrane through the surgical incision. Since the lower ring also plays a supporting and expanding role, the elasticity of the lower ring is not high, and the lower ring needs to be squeezed and flattened with force to be inserted into the surgical incision, making it difficult to conveniently pass the isolation membrane through the surgical incision, which is not convenient enough. Moreover, after surgical instruments such as surgical forceps are inserted into the chest cavity through the isolation membrane, they are generally directly placed on the edge of the upper ring without a fixed support mechanism, which makes surgical instruments such as surgical forceps easy to shake, and the operator needs to manually fix them all the time, which is not convenient enough. Summary of the invention

[0004] The purpose of the present invention is to provide a chest support device for surgery, which can drive the isolation membrane to contract and open through the expansion plate of the expansion mechanism, so as to facilitate the isolation membrane to pass through the surgical incision and improve the convenience of support, and can clamp surgical instruments such as surgical forceps through the clamping assembly of the clamping mechanism. After the airbag is inflated, it is not only convenient to support and expand the surgical incision, but also convenient for the clamping assembly to support and fix the surgical instrument.

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

[0006] A thoracic support device for surgery, comprising:

[0007] A cylinder, the inner wall of which is fixedly connected with an isolation membrane;

[0008] Expansion mechanism, the expansion mechanism is arranged inside the cylinder body. The expansion mechanism includes two expansion plates respectively slidably installed on both sides inside the cylinder body. A tension spring is installed between the outer side of the expansion plate and the cylinder body. The expansion plate is located inside the isolation film. The bottom of the expansion plate is fixedly connected to the isolation film. An airbag is fixedly connected to the bottom of the expansion plate. An air vent is opened at the top of the expansion plate, and the air vent is communicated with the inside of the airbag.

[0009] Clamping mechanism, the clamping mechanism is arranged outside the cylinder body. The clamping mechanism includes a clamping component rotatably connected to the outer wall of the cylinder body. A lifting ring is arranged below the clamping component. The lifting ring is slidably connected to the outer wall of the cylinder body in the vertical direction. The clamping component includes two clamping blocks, and the clamping blocks are used for clamping surgical instruments.

[0010] Among them, when the expansion plate slides inward, the diameter of the isolation film is reduced. After the isolation film extends into the surgical incision, the tension spring drives the expansion plate to slide outward, so that the expansion plate supports and expands the surgical incision and the isolation film. After the airbag is inflated through the air vent and expands upward to press against the thoracic wall, the lifting ring is closely attached to the clamping component to limit the clamping component.

[0011] As a preferred solution of the thoracic cavity support device for surgery described in the present invention, wherein: a sliding arm is slidably installed on the outer side of the expansion plate in the vertical direction. The sliding arm is slidably connected to the top of the cylinder body. A baffle is arranged at the end of the sliding arm away from the expansion plate. The baffle is slidably installed on the top of the cylinder body. One end of the tension spring is fixedly connected to the sliding arm, and the other end of the tension spring is fixedly connected to the baffle.

[0012] As a preferred solution of the thoracic cavity support device for surgery described in the present invention, wherein: the baffle is slidably connected to the top of the cylinder body. A first limiting hole is opened inside the baffle. A plurality of second limiting holes are opened on the top of the cylinder body along the sliding direction. A first limiting pin is connected inside the first limiting hole and the second limiting hole.

[0013] As a preferred solution of the thoracic cavity support device for surgery described in the present invention, wherein: a plurality of third limiting holes are opened on the side of the expansion plate close to the sliding arm in the vertical direction. A fourth limiting hole is opened at the end of the sliding arm close to the expansion plate. A second limiting pin is connected inside the third limiting hole and the fourth limiting hole.

[0014] As a preferred solution of the thoracic cavity support device for surgery described in the present invention, wherein: a first convex part is fixedly connected to the inner side of the top of the lifting ring. The inner side of the first convex part is slidably matched with the outer wall of the cylinder body in the vertical direction. A second convex part is fixedly connected to the outer side of the bottom of the cylinder body. The outer side of the second convex part is slidably matched with the inner wall of the lifting ring in the vertical direction.

[0015] As a preferred embodiment of the thoracic cavity support device for surgery according to the present invention, wherein: the clamping assembly further includes a rotating arm rotatably connected to the outer wall of the cylinder body, a first connecting arm is slidably mounted at the end of the rotating arm, a second connecting arm is slidably mounted along the vertical direction on the upper edge of the first connecting arm, a connecting frame is rotatably mounted on the second connecting arm, and the two clamping blocks are respectively slidably mounted at both ends of the connecting frame.

[0016] As a preferred embodiment of the thoracic cavity support device for surgery according to the present invention, wherein: the first connecting arm is slidably connected to the rotating arm along the radial direction of the cylinder body, a fifth limiting hole is formed in the rotating arm, a plurality of sixth limiting holes are formed along the sliding direction at one end of the first connecting arm close to the rotating arm, and a third limiting pin is slidably connected inside the fifth limiting hole and the sixth limiting hole.

[0017] As a preferred embodiment of the thoracic cavity support device for surgery according to the present invention, wherein: the second connecting arm is slidably connected to the first connecting arm along the vertical direction, a plurality of seventh limiting holes are formed along the vertical direction in the second connecting arm, an eighth limiting hole is formed at one end of the first connecting arm close to the second connecting arm, and a fourth limiting pin is slidably connected inside the seventh limiting hole and the eighth limiting hole.

[0018] As a preferred embodiment of the thoracic cavity support device for surgery according to the present invention, wherein: the connecting frame is rotatably connected to the upper end of the second connecting arm, a plurality of ninth limiting holes are formed along the circumferential direction at the upper end of the second connecting arm, a tenth limiting hole is formed in the connecting frame, and a fifth limiting pin is slidably connected inside the ninth limiting hole and the tenth limiting hole.

[0019] As a preferred embodiment of the thoracic cavity support device for surgery according to the present invention, wherein: a sliding column is fixedly connected to the outer side of the clamping block, the sliding column is slidably matched with the connecting frame, a spring is connected between the outer side of the clamping block and the connecting frame, a limiting block is fixedly connected to one end of the sliding column away from the clamping block, and the limiting block is located outside the connecting frame.

[0020] The technical effects achieved by the present invention are:

[0021] The present invention adopts the design of an expansion mechanism. The expansion mechanism can drive the isolation membrane to contract and expand through the expansion plate, so as to facilitate the insertion of the isolation membrane into the surgical incision. After the expansion plate slides inward along the cylinder body, the lower end of the expansion plate drives the isolation membrane to contract inward, reducing the overall size of the isolation membrane and facilitating the insertion of the isolation membrane into the surgical incision. After the tension spring drives the expansion plate to slide outward along the cylinder body under the elastic action, the expansion plate drives the isolation membrane to expand outward, thereby supporting and expanding the surgical incision. Compared with the traditional method of forcibly flattening the lower collar, it is convenient to pass the isolation membrane through the surgical incision and improve the convenience of support;

[0022] The present invention adopts the design of an expansion mechanism and a clamping mechanism. The clamping mechanism can clamp surgical instruments such as surgical forceps through the clamping component. After the airbag is inflated and expands, it squeezes outward from the inner wall of the thoracic cavity, so that the airbag and the lifting ring clamp the thoracic wall from the inside and outside respectively. On the one hand, it limits the relative position of the cylinder body on the surgical incision. On the other hand, when clamping the thoracic wall, the lifting ring also presses the clamping component to limit the relative position of the clamping component on the cylinder body, so that it is not only convenient to support and expand the surgical incision, but also convenient to support and fix the surgical instruments, improving the convenience of support. Brief Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the cross-sectional schematic diagram of the whole placed on the thoracic wall in the present invention;

[0025] Figure 3 is the cross-sectional schematic diagram of the cylinder body and the expansion mechanism in the present invention;

[0026] Figure 4 is in the present invention Figure 3 the enlarged schematic diagram of part A;

[0027] Figure 5 is in the present invention Figure 3 the enlarged schematic diagram of part B;

[0028] Figure 6 is the structural schematic diagram of the clamping component in the present invention;

[0029] Figure 7 is in the present invention Figure 6 the enlarged schematic diagram of part C;

[0030] Figure 8 is the cross-sectional schematic diagram of the first connecting arm and the second connecting arm in the present invention.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 10. Cylinder body; 101. Second limiting hole; 102. Second protruding part; 11. Isolation film; 12. Lifting ring; 121. First protruding part; 20. Expansion mechanism; 21. Expansion plate; 211. Ventilation port; 212. Third limiting hole; 22. Tension spring; 23. Airbag; 24. Sliding arm; 241. Fourth limiting hole; 25. Baffle; 251. First limiting hole; 26. First limiting pin; 27. Second limiting pin; 30. Clamping mechanism; 31. Clamping assembly; 32. Clamping block; 321. Sliding column; 322. Limiting block; 33. Rotating arm; 331. Fifth limiting hole; 34. First connecting arm; 341. Sixth limiting hole; 342. Eighth limiting hole; 35. Second connecting arm; 351. Seventh limiting hole; 352. Ninth limiting hole; 36. Connecting frame; 361. Tenth limiting hole; 37. Third limiting pin; 38. Fourth limiting pin; 39. Fifth limiting pin; 40. Spring. Detailed implementation manners

[0033] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0034] Embodiment 1

[0035] As Figures 1 to 8 shown, this is the first embodiment of the present invention. This embodiment provides a thoracic cavity support device for surgery, including a cylinder body 10, an isolation film 11 fixedly connected to the inner wall of the cylinder body 10; an expansion mechanism 20, the expansion mechanism 20 is arranged inside the cylinder body 10, the expansion mechanism 20 includes two expansion plates 21 respectively slidably installed on both sides inside the cylinder body 10, a tension spring 22 is installed between the outer side of the expansion plate 21 and the cylinder body 10, the expansion plate 21 is located inside the isolation film 11, the bottom of the expansion plate 21 is fixedly connected to the isolation film 11, an airbag 23 is fixedly connected to the bottom of the expansion plate 21, a ventilation port 211 is opened at the top of the expansion plate 21, and the ventilation port 211 is communicated with the inside of the airbag 23; a clamping mechanism 30, the clamping mechanism 30 is arranged outside the cylinder body 10, the clamping mechanism 30 includes a clamping assembly 31 rotatably connected to the outer wall of the cylinder body 10, a lifting ring 12 is arranged below the clamping assembly 31, the lifting ring 12 is slidably connected to the outer wall of the cylinder body 10 in the vertical direction, and the clamping assembly 31 includes two clamping blocks 32 for clamping surgical instruments.

[0036] It should be noted that the isolation membrane 11 is a prior art and is made of an elastic material, which will not be elaborated here. The airbag 23 is a prior art and is made of an elastic material for inflating and expanding and deflating and contracting, which will not be elaborated here. An air passage is provided inside the expansion plate 21. The upper end of the air passage communicates with the ventilation port 211, and the lower end of the air passage communicates with the airbag 23. An air pump (not shown in the figure) is connected to the outside of the ventilation port 211. The air pump is a prior art for inflating and pumping air into the airbag 23, which will not be elaborated here. The clamping block 32 is a prior art for fitting and clamping the rod-shaped part of surgical instruments such as surgical forceps. In the initial state, the airbag 23 does not extend into the thoracic cavity and is not inflated and expanded.

[0037] When the present invention is in use, the expansion plate 21 slides inward along the cylinder 10, so that the distance between the two expansion plates 21 decreases. The lower end of the expansion plate 21 drives the isolation membrane 11 to move inward and contract, so that the lateral dimension outside the isolation membrane 11 decreases, facilitating the placement of the isolation membrane 11 with reduced dimensions into the surgical incision. Move the cylinder 10 along the surgical incision towards the side close to the patient's thoracic cavity, so that the expansion plate 21 drives the isolation membrane 11 to extend through the surgical incision and into the thoracic cavity. Under the elastic action, the tension spring 22 drives the expansion plate 21 to move outward, so that the expansion plate 21 slides outward along the cylinder 10 and drives the isolation membrane 11 to open, so that the lateral dimension outside the isolation membrane 11 increases and fits against the inner side of the incision. Since the distance between the two expansion plates 21 increases after the expansion plate 21 slides outward, the inner spacing of the surgical incision increases, thereby realizing the support and expansion of the surgical incision. Compared with the traditional method of forcibly flattening the lower collar, it is convenient to pass the isolation membrane 11 through the surgical incision and improve the convenience of support. Inflate the airbag 23 through the ventilation port 211, so that after the airbag 23 is inflated and expanded, it squeezes outward from the inner wall of the thoracic cavity, so that the distance between the airbag 23 and the lower end of the cylinder 10 decreases, so that the airbag 23 and the lifting ring 12 clamp the thoracic wall from the inside and outside respectively, limiting the relative position of the cylinder 10 on the surgical incision, so that the cylinder 10 is relatively fixed on the surgical incision, facilitating the support and expansion of the surgical incision. And the clamping assembly 31 clamps surgical instruments such as surgical forceps through the clamping block 32. After the clamping assembly 31 rotates along the cylinder 10, it is convenient to adjust the relative position between the clamped surgical instrument and the surgical incision. During the process that the airbag 23 is inflated and expanded and clamps the thoracic wall together with the lifting ring 12, the lifting ring 12 is pushed upward by the outer wall of the thoracic cavity, so that the lifting ring 12 moves upward along the cylinder 10, so that the top of the lifting ring 12 fits against the bottom of the clamping assembly 31. The lifting ring 12 presses the clamping assembly 31 against the cylinder 10, limiting the relative position of the clamping assembly 31 on the cylinder 10, so that the airbag 23 is not only convenient for supporting and expanding the surgical incision, but also convenient for the clamping assembly 31 to support and fix the surgical instrument, improving the convenience of support.

[0038] Among them, after the airbag 23 is inflated and expanded, it is not only used to clamp the thoracic wall to fix the cylinder body 10, but also separates the expansion plate 21 from the human tissues in the thoracic cavity in the thoracic cavity, reducing the situation that the lower end of the expansion plate 21 rubs against the human tissues in the thoracic cavity and damages the health of the patient. The expansion plate 21 is arranged inside the isolation membrane 11, so that during the process of supporting and expanding the surgical incision, the isolation membrane 11 separates the inside of the surgical incision from the expansion plate 21, reducing the situation that the expansion plate 21 damages the inside of the surgical incision when passing through the surgical incision.

[0039] Embodiment 2

[0040] Refer to Figures 1 to 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0041] As Figure 3 and Figure 4 shown, a sliding arm 24 is slidably installed along the vertical direction on the outer side of the expansion plate 21. The sliding arm 24 is slidably connected to the top of the cylinder body 10. One end of the sliding arm 24 away from the expansion plate 21 is provided with a baffle 25. The baffle 25 is slidably installed on the top of the cylinder body 10. One end of the tension spring 22 is fixedly connected to the sliding arm 24, and the other end of the tension spring 22 is fixedly connected to the baffle 25.

[0042] It should be noted that a sliding sleeve is provided at the top of the cylinder body 10, and the sliding arm 24 is slidably matched with the sliding sleeve.

[0043] According to the above structure, after the expansion plate 21 is slid up and down along the sliding arm 24, the distance between the bottom of the expansion plate 21 and the bottom of the cylinder body 10 is adjusted to adapt to thoracic walls of different thicknesses and sizes, improving applicability. After the baffle 25 is slid along the top of the cylinder body 10, the baffle 25 drives the tension spring 22 and the sliding arm 24 to slide along the cylinder body 10, adjusting the distance between the two expansion plates 21 when supporting and expanding the surgical incision, thereby adjusting the size of the surgical incision expansion and improving the convenience of support and expansion.

[0044] As Figure 4 shown, the baffle 25 is slidably connected to the top of the cylinder body 10. A first limiting hole 251 is opened inside the baffle 25. A plurality of second limiting holes 101 are opened along the sliding direction at the top of the cylinder body 10. A first limiting pin 26 is connected inside the first limiting hole 251 and the second limiting hole 101.

[0045] It should be noted that a sliding groove is opened at the top of the cylinder body 10. A sliding strip is fixedly connected to the bottom of the baffle 25. The sliding strip is slidably matched with the sliding groove. The first limiting pin 26 is slidably connected to the first limiting hole 251, and one end of the first limiting pin 26 close to the cylinder body 10 is threadedly connected to the second limiting hole 101.

[0046] According to the above structure, when it is necessary to adjust the distance between the two expansion plates 21 for supporting and expanding the surgical incision, the first limit pin 26 is taken out from the first limit hole 251 and the second limit hole 101, and the baffle 25 is slid along the top of the cylinder body 10 so that the first limit hole 251 is aligned with the second limit hole 101 at a suitable position. Then the baffle 25 is inserted and connected in the second limit hole 101 and the first limit hole 251 to limit the baffle 25 and the cylinder body 10. Since the baffle 25 drives the tension spring 22 and the sliding arm 24 to move along the top of the cylinder body 10 when moving, the maximum distance that the tension spring 22 drives the sliding arm 24 and the expansion plate 21 to slide outward during expansion is increased or decreased, thereby adjusting the distance between the two expansion plates 21 when supporting and expanding the surgical incision, and facilitating the adjustment of the size of the surgical incision expansion.

[0047] As Figure 4 shown, a plurality of third limit holes 212 are vertically formed on one side of the expansion plate 21 close to the sliding arm 24, a fourth limit hole 241 is formed at one end of the sliding arm 24 close to the expansion plate 21, and a second limit pin 27 is connected inside the third limit hole 212 and the fourth limit hole 241.

[0048] It should be noted that one side of the expansion plate 21 close to the sliding arm 24 is arc-shaped, one side of the sliding arm 24 close to the expansion plate 21 is arc-shaped, the second limit pin 27 is slidably connected with the third limit hole 212, one end of the second limit pin 27 close to the expansion plate 21 is threadedly connected with the third limit hole 212, and the diameter size of one end of the second limit pin 27 close to the expansion plate 21 is smaller than that of the end far from the expansion plate 21, which is used to prevent the expansion plate 21 from separating from the sliding arm 24.

[0049] According to the above structure, when it is necessary to adjust the distance between the bottom of the expansion plate 21 and the bottom of the cylinder body 10, the second limit pin 27 is taken out from the third limit hole 212 and the fourth limit hole 241, and the expansion plate 21 is slid up and down along the sliding arm 24 so that the fourth limit hole 241 is aligned with the third limit hole 212 at a suitable position. Then the second limit pin 27 is inserted and connected in the third limit hole 212 and the fourth limit hole 241 to limit the expansion plate 21 and the sliding arm 24, thereby adjusting the distance between the bottom of the expansion plate 21 and the bottom of the cylinder body 10 and facilitating the adaptation to the chest wall with different thickness dimensions.

[0050] As Figure 4 shown, a first convex portion 121 is fixedly connected to the inner side of the top of the lifting ring 12, the inner side of the first convex portion 121 is slidably matched with the outer wall of the cylinder body 10 in the vertical direction, a second convex portion 102 is fixedly connected to the outer side of the bottom of the cylinder body 10, and the outer side of the second convex portion 102 is slidably matched with the inner wall of the lifting ring 12 in the vertical direction.

[0051] According to the above structure, when the lifting ring 12 slides downward along the cylinder body 10 under the action of its own gravity, the bottom of the first convex part 121 fits against the top of the second convex part 102, so that the second convex part 102 hinders the first convex part 121 from continuing to slide downward, preventing the lifting ring 12 from detaching from the cylinder body 10 and improving the stability of the device.

[0052] As Figure 6 , Figure 7 and Figure 8 shown, the clamping assembly 31 further includes a rotating arm 33 rotatably connected to the outer wall of the cylinder body 10. A first connecting arm 34 is slidably installed at the end of the rotating arm 33. A second connecting arm 35 is slidably installed along the vertical direction on the upper edge of the first connecting arm 34. A connecting frame 36 is rotatably installed on the second connecting arm 35. Two clamping blocks 32 are respectively slidably installed at both ends of the connecting frame 36.

[0053] According to the above structure, when the clamping blocks 32 clamp surgical instruments such as surgical forceps, by rotating the rotating arm 33 along the cylinder body 10, the angular position of the clamping part of the surgical instrument and the surgical incision along the horizontal plane is adjusted. By sliding the first connecting arm 34 along the rotating arm 33, the distance between the clamping part of the surgical instrument and the surgical incision along the horizontal plane is adjusted. By sliding the second connecting arm 35 along the first connecting arm 34, the distance between the clamping part of the surgical instrument and the surgical incision along the vertical direction is adjusted. By rotating the connecting frame 36 along the second connecting arm 35, the angular position of the clamping part of the surgical instrument and the surgical incision along the vertical plane is adjusted, so as to facilitate the support and fixation of the surgical instrument and improve the convenience of support.

[0054] As Figure 6 and Figure 8 shown, the first connecting arm 34 is slidably connected to the rotating arm 33 along the radial direction of the cylinder body 10. A fifth limiting hole 331 is formed in the rotating arm 33. A plurality of sixth limiting holes 341 are formed in one end of the first connecting arm 34 close to the rotating arm 33 along the sliding direction. A third limiting pin 37 is slidably connected inside the fifth limiting hole 331 and the sixth limiting hole 341.

[0055] According to the above structure, when it is necessary to adjust the distance between the clamping part of the surgical instrument and the surgical incision along the horizontal plane, the third limiting pin 37 is pulled out from the fifth limiting hole 331 and the sixth limiting hole 341. The first connecting arm 34 is slid along the rotating arm 33 to align the fifth limiting hole 331 with the sixth limiting hole 341 at a suitable position. The third limiting pin 37 is inserted into the fifth limiting hole 331 and the sixth limiting hole 341 to limit the rotating arm 33 and the first connecting arm 34, so as to adjust the distance between the first connecting arm 34 and the rotating arm 33, and thus adjust the distance between the clamping block 32 and the surgical incision along the horizontal plane, so as to facilitate the adjustment of the distance between the clamping part of the surgical instrument and the surgical incision along the horizontal plane.

[0056] As Figure 6 and Figure 8 shown, the second connecting arm 35 is slidably connected to the first connecting arm 34 in the vertical direction. A plurality of seventh limiting holes 351 are formed in the second connecting arm 35 in the vertical direction. An eighth limiting hole 342 is formed at one end of the first connecting arm 34 close to the second connecting arm 35. A fourth limiting pin 38 is slidably connected inside the seventh limiting hole 351 and the eighth limiting hole 342.

[0057] According to the above structure, when it is necessary to adjust the distance in the vertical direction between the clamping part of the surgical instrument and the surgical incision, the fourth limiting pin 38 is pulled out from the eighth limiting hole 342 and the seventh limiting hole 351, and the second connecting arm 35 is slid up and down along the first connecting arm 34, so that the eighth limiting hole 342 is aligned with the seventh limiting hole 351 at a suitable position. The fourth limiting pin 38 is inserted into the eighth limiting hole 342 and the seventh limiting hole 351 to limit the first connecting arm 34 and the second connecting arm 35, thereby adjusting the distance between the second connecting arm 35 and the first connecting arm 34, so as to adjust the distance in the vertical direction between the clamping block 32 and the surgical incision, thus facilitating the adjustment of the distance in the vertical direction between the clamping part of the surgical instrument and the surgical incision.

[0058] As Figure 6 、 Figure 7 and Figure 8 shown, the connecting frame 36 is rotatably connected to the upper end of the second connecting arm 35. A plurality of ninth limiting holes 352 are formed in the upper end of the second connecting arm 35 in the circumferential direction. A tenth limiting hole 361 is formed in the connecting frame 36. A fifth limiting pin 39 is slidably connected inside the ninth limiting hole 352 and the tenth limiting hole 361.

[0059] It should be noted that the upper end of the second connecting arm 35 is fan-shaped. A rotating shaft is fixedly connected to the center of the fan shape. The rotating shaft is rotationally matched with the connecting frame 36. The plurality of ninth limiting holes 352 are circumferentially distributed around the axis of the rotating shaft.

[0060] According to the above structure, when it is necessary to adjust the angular position in the vertical plane between the clamping part of the surgical instrument and the surgical incision, the fifth limiting pin 39 is pulled out from the tenth limiting hole 361 and the ninth limiting hole 352, and the connecting frame 36 is rotated along the second connecting arm 35, so that the tenth limiting hole 361 is aligned with the ninth limiting hole 352 at a suitable position. The fifth limiting pin 39 is inserted into the tenth limiting hole 361 and the ninth limiting hole 352 to limit the connecting frame 36 and the second connecting arm 35, thereby adjusting the angular position in the vertical plane between the connecting frame 36 and the second connecting arm 35, so as to adjust the angular position in the vertical plane between the clamping block 32 and the surgical incision, thus facilitating the adjustment of the angular position in the vertical plane between the clamping part of the surgical instrument and the surgical incision.

[0061] As Figure 6 , Figure 7 and Figure 8 shown, a sliding column 321 is fixedly connected to the outer side of the clamping block 32. The sliding column 321 is in sliding fit with the connecting frame 36. A spring 40 is connected between the outer side of the clamping block 32 and the connecting frame 36. A limiting block 322 is fixedly connected to the end of the sliding column 321 away from the clamping block 32. The limiting block 322 is located outside the connecting frame 36.

[0062] It should be noted that a sliding hole is formed in the connecting frame 36. The sliding hole is in sliding fit with the sliding column 321. The size of the limiting block 322 is larger than the size of the sliding hole. An elastic pad is fixedly connected to the inner side of the clamping block 32. The elastic pad is made of an elastic material and is used to reduce the damage of the clamping block 32 to the surgical instrument when clamping the surgical instrument.

[0063] According to the above structure, the limiting block 322 is pulled outward. The limiting block 322 drives the clamping block 32 to slide outward along the connecting frame 36 through the sliding column 321, so that the distance between the two clamping blocks 32 increases. The surgical instruments such as surgical forceps are placed between the two clamping blocks 32. The limiting block 322 is no longer pulled. At this time, the spring 40 pushes the clamping block 32 to slide inward along the connecting frame 36 under the elastic action, so that the distance between the two clamping blocks 32 decreases, thereby facilitating the clamping block 32 to clamp the surgical instrument.

[0064] The working principle of the present invention is as follows: After the two expansion plates 21 slide inward, they drive the isolation membrane 11 to contract inward, which is convenient for inserting the isolation membrane 11 into the surgical incision. After insertion, the airbag 23 is inflated, so that the distance between the airbag 23 and the bottom of the cylinder 10 is reduced after the airbag 23 expands. Thus, the airbag 23 and the lifting ring 12 clamp the chest wall, not only limiting the relative position of the cylinder 10 on the surgical incision, but also pressing and clamping the clamping assembly 31 through the lifting ring 12 to limit the relative position of the clamping assembly 31 on the cylinder 10. On the one hand, it is convenient to support and expand the surgical incision, and on the other hand, it is convenient to support and fix the surgical instrument, improving the convenience of support. Among them, the clamping assembly 31 clamps the surgical instruments such as surgical forceps through the clamping block 32. Compared with the traditional method that requires the operator to manually fix the surgical instrument all the time, the convenience of support is improved.

[0065] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specifically stated and limited, are implemented according to the conventional means in the art.

Claims

1. A thoracic support device for surgery, characterized in that, Comprising: A cylinder body (10), an isolation film (11) is fixedly connected to the inner wall of the cylinder body (10); An expansion mechanism (20), the expansion mechanism (20) is arranged inside the cylinder body (10), the expansion mechanism (20) includes two expansion plates (21) respectively slidably installed on both sides inside the cylinder body (10), a tension spring (22) is installed between the outer side of the expansion plate (21) and the cylinder body (10), the expansion plate (21) is located inside the isolation film (11), the bottom of the expansion plate (21) is fixedly connected to the isolation film (11), an airbag (23) is fixedly connected to the bottom of the expansion plate (21), a ventilation port (211) is opened at the top of the expansion plate (21), and the ventilation port (211) is communicated with the inside of the airbag (23); A clamping mechanism (30), the clamping mechanism (30) is arranged outside the cylinder body (10), the clamping mechanism (30) includes a clamping component (31) rotatably connected to the outer wall of the cylinder body (10), a lifting ring (12) is arranged below the clamping component (31), the lifting ring (12) is slidably connected to the outer wall of the cylinder body (10) in the vertical direction, the clamping component (31) includes two clamping blocks (32), and the clamping blocks (32) are used for clamping surgical instruments; Wherein, after the expansion plate (21) slides inwards, the diameter of the isolation film (11) is reduced. After the isolation film (11) extends into the surgical incision, the tension spring (22) drives the expansion plate (21) to slide outwards, so that the expansion plate (21) supports and expands the surgical incision and the isolation film (11). After the airbag (23) is inflated through the ventilation port (211), it squeezes the thoracic wall upwards, so that the lifting ring (12) closely adheres to the clamping component (31) to limit the clamping component (31).

2. The thoracic cavity support device for surgery according to claim 1, wherein: A sliding arm (24) is slidably installed on the outer side of the expansion plate (21) in the vertical direction, the sliding arm (24) is slidably connected to the top of the cylinder body (10), a baffle (25) is arranged at one end of the sliding arm (24) away from the expansion plate (21), the baffle (25) is slidably installed on the top of the cylinder body (10), one end of the tension spring (22) is fixedly connected to the sliding arm (24), and the other end of the tension spring (22) is fixedly connected to the baffle (25).

3. The thoracic cavity support device for surgery according to claim 2, wherein: The baffle (25) is slidably connected to the top of the cylinder body (10), a first limiting hole (251) is opened inside the baffle (25), a plurality of second limiting holes (101) are opened on the top of the cylinder body (10) along the sliding direction, and a first limiting pin (26) is connected inside the first limiting hole (251) and the second limiting hole (101).

4. The surgical thoracic support device according to claim 2, characterized in that: A plurality of third limiting holes (212) are opened on one side of the expansion plate (21) close to the sliding arm (24) in the vertical direction, a fourth limiting hole (241) is opened at one end of the sliding arm (24) close to the expansion plate (21), and a second limiting pin (27) is connected inside the third limiting hole (212) and the fourth limiting hole (241).

5. The surgical thoracic support device according to claim 1, wherein: The inner side of the top of the lifting ring (12) is fixedly connected with a first convex part (121). The inner side of the first convex part (121) is in sliding fit with the outer wall of the cylinder body (10) in the vertical direction. The outer side of the bottom of the cylinder body (10) is fixedly connected with a second convex part (102). The outer side of the second convex part (102) is in sliding fit with the inner wall of the lifting ring (12) in the vertical direction.

6. The thoracic cavity support device for surgery according to claim 1, characterized in that: The clamping assembly (31) further includes a rotating arm (33) rotatably connected to the outer wall of the cylinder body (10). A first connecting arm (34) is slidably installed at the end of the rotating arm (33). A second connecting arm (35) is slidably installed on the upper edge of the first connecting arm (34) in the vertical direction. A connecting frame (36) is rotatably installed on the second connecting arm (35). The two clamping blocks (32) are respectively slidably installed at both ends of the connecting frame (36).

7. The surgical thoracic support device according to claim 6, characterized in that: The first connecting arm (34) is slidably connected to the rotating arm (33) in the radial direction of the cylinder body (10). A fifth limiting hole (331) is formed in the rotating arm (33). A plurality of sixth limiting holes (341) are formed in the end of the first connecting arm (34) close to the rotating arm (33) along the sliding direction. A third limiting pin (37) is slidably connected inside the fifth limiting hole (331) and the sixth limiting hole (341).

8. The surgical thoracic support device according to claim 6, wherein: The second connecting arm (35) is slidably connected to the first connecting arm (34) in the vertical direction. A plurality of seventh limiting holes (351) are formed in the second connecting arm (35) in the vertical direction. An eighth limiting hole (342) is formed in the end of the first connecting arm (34) close to the second connecting arm (35). A fourth limiting pin (38) is slidably connected inside the seventh limiting hole (351) and the eighth limiting hole (342).

9. The surgical thoracic support device according to claim 6, wherein: The connecting frame (36) is rotatably connected to the upper end of the second connecting arm (35). A plurality of ninth limiting holes (352) are formed in the upper end of the second connecting arm (35) in the circumferential direction. A tenth limiting hole (361) is formed in the connecting frame (36). A fifth limiting pin (39) is slidably connected inside the ninth limiting hole (352) and the tenth limiting hole (361).

10. The surgical thoracic support device according to claim 6, characterized in that: A sliding column (321) is fixedly connected to the outer side of the clamping block (32). The sliding column (321) is in sliding fit with the connecting frame (36). A spring (40) is connected between the outer side of the clamping block (32) and the connecting frame (36). A limiting block (322) is fixedly connected to the end of the sliding column (321) far from the clamping block (32). The limiting block (322) is located outside the connecting frame (36).

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