Rib retractor for thoracic surgeon

Abstract

The utility model discloses a rib retraction device for thoracic surgeons, which comprises a driving box, a screw, a first rotating handle, a retraction mechanism and a shifting mechanism, the driving box is of a rectangular cavity structure, and the retraction mechanism and the shifting mechanism are respectively arranged at two ends of the driving box; the retracting mechanism comprises a first sliding table, a connecting shaft, a first connecting rod, a second connecting rod, a third connecting rod, a bearing plate and a hook, one end of the first sliding table is movably connected with a screw rod and a first sliding strip on the driving box through a first sliding groove and a first screw hole, and the other end of the first sliding table is connected with the first connecting rod and the second connecting rod through the connecting shaft; one end of the first connecting rod is provided with a bearing plate, and the other end of the second connecting rod is connected with the hook through a third connecting rod. The rib traction device is suitable for rib traction of different parts, and two groups of traction structures are arranged and can be selectively used according to needs.

Description

Technical Field

[0001] The invention relates to the technical field of rib retraction equipment, and in particular to a rib retraction device for thoracic surgeons. Background Art

[0002] Current thoracic surgery often requires making an opening between two ribs, and then using a rib retractor to retract the ribs to complete the thoracic surgery. Retractors are divided into sternal retractors, rib retractors and scapula retractors. Existing rib retractors generally use screws to drive the toggle frame to pull the ribs at both ends apart. This design has two defects. First, when the ribs are pulled apart, the spacing is not enough. Second, when the ribs are pulled apart, the position is different, and the required equipment and the force of the toggle are also different. A single retraction device requires the assistance of multiple devices to achieve. Therefore, we designed a multifunctional rib retraction device, which is not only suitable for rib traction at different parts, but also has two sets of retraction structures, which can be selected and used according to needs. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the utility model provides a rib retraction device for thoracic surgeons, which is not only suitable for traction of ribs in different parts, but also has two groups of retraction structures, which can be selected and used according to needs.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A rib retraction device for thoracic surgeons comprises a driving box, a screw, a first rotating handle, a retraction mechanism and a toggle mechanism, wherein the driving box is a rectangular hollow structure, and the retraction mechanism and the toggle mechanism are respectively arranged at both ends of the driving box; the retraction mechanism comprises a first sliding table, a connecting shaft, a first connecting rod, a second connecting rod, a third connecting rod, a bearing plate and a hook, one end of the first sliding table is movably connected to the screw and the first sliding bar on the driving box through a first sliding groove and a first screw hole respectively, and the other end of the sliding table is connected to the first connecting rod and the second connecting rod through a connecting shaft, one end of the first connecting rod is provided with a bearing plate, and the other end of the second connecting rod is connected to the hook through the third connecting rod.

[0006] Furthermore, the third connecting rod is movably arranged inside the second connecting rod, and a first limiting screw is arranged on the upper part of the second connecting rod; the hook is an arc-shaped hook, and a fixing ear at one end of the hook is movably connected to the third connecting rod through a pin shaft.

[0007] Furthermore, the screw rod is arranged inside the driving box, and one end of the screw rod is connected to the first rotating handle through a connector.

[0008] Furthermore, the toggle mechanism includes a second sliding platform, a third sliding platform, a fourth sliding platform, a toggle rod, a positioning slot and a driving mechanism, one end of the toggle rod is movably connected to a fourth slide bar on the fourth sliding platform through a fourth slide slot; the fourth sliding platform is connected to the third sliding platform through a connecting rod, and the third sliding platform is slidably connected to the third slide bar inside the second sliding platform through the third slide slot; the second sliding platform is slidably connected to the second slide bar on the other side of the driving box through the second slide slot on one end.

[0009] Furthermore, a plurality of positioning slots are provided on the upper portion of the toggle rod, and the positioning slots are movably connected to the connecting holes on the toggle rod through pins; a driving mechanism is provided on the upper portion of the toggle rod, and the driving mechanism is connected to the rack on the upper portion of the fourth sliding platform.

[0010] Furthermore, the driving mechanism includes a driving gear, a connecting block and a second rotating handle. The driving gear is connected to the upper part of the fourth sliding platform through the connecting block, and the driving gear is meshed with the rack. A second rotating handle is provided at one end of the connecting block, and the second rotating handle is connected to the driving gear through a rotating shaft.

[0011] Furthermore, the bearing plate is a semi-arc plate, and a flexible cushion layer is provided on the inner wall of the bearing plate.

[0012] The utility model has the following advantages and beneficial effects:

[0013] In the utility model, a retraction mechanism and a toggle mechanism are respectively arranged on both sides of the driving box, wherein the retraction mechanism has a larger traction force and is used when a larger position needs to be pulled, while the toggle mechanism uses the two ends of the toggle rod for guidance to retract the ribs, and can be used when retracting in a small range. This design is more applicable.

[0014] In the utility model, in order to obtain a larger traction force, the traction mechanism is driven by a screw rod. It is only necessary to first fix the hook at the position where traction is required, and place the bearing plate on the patient's chest. By rotating the screw rod, the entire hook will move forward to pull the ribs apart. This design has a stronger traction force and can be used as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a partial structural diagram of the retraction mechanism of the utility model;

[0017] Figure 3 This is the front view of the utility model;

[0018] Figure 4 It is the right view of the utility model;

[0019] Figure 5 It is a partial structural diagram of the toggle mechanism of the utility model;

[0020] Icons: 1-drive box, 2-first rotating handle, 3-pull-out mechanism, 4-sliding mechanism, 5-first slide bar, 7-screw, 301-first sliding table, 302-connecting shaft, 303-first connecting rod, 304-carrying plate, 305-second connecting rod, 306-first limit screw, 307-third connecting rod, 308-hook, 401-second sliding table, 402-third sliding table, 403-fourth sliding table, 404-fourth sliding groove, 405-sliding rod, 406-positioning slot, 407-second sliding groove, 409-third slide bar sliding, 410-fourth slide bar, 411-rack, 412-driving gear, 413-second rotating handle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 3 As shown, a rib retraction device for thoracic surgeons comprises a driving box 1, a screw 7, a first rotating handle 2, a retraction mechanism 3 and a toggle mechanism 4, wherein the driving box 1 is a rectangular hollow structure, and the retraction mechanism 3 and the toggle mechanism 4 are respectively arranged at both ends of the driving box 1; the retraction mechanism 3 comprises a first sliding platform 301, a connecting shaft 302, a first connecting rod 303, a second connecting rod 305, a third connecting rod 307, a bearing plate 304 and a hook 308, one end of the first sliding platform 301 is movably connected with the screw 7 and the first sliding bar 5 on the driving box 1 through a first sliding groove and a first screw hole, respectively, and the other end of the sliding platform 301 is connected with the first connecting rod 303 and the second connecting rod 305 through a connecting shaft 302, one end of the first connecting rod 303 is provided with a bearing plate 304, and the other end of the second connecting rod 305 is connected with the hook 308 through the third connecting rod 307.

[0024] It should be noted that during thoracic surgery, the ribs need to be pulled apart first so that the doctor can perform surgery on the inside of the chest cavity. When the ribs are pulled apart, the force and size of the pulling are different due to the different parts. Therefore, different types of pulling equipment are often required during the operation, and many types of instruments need to be prepared. Therefore, we have designed an integrated pulling device to solve this technical problem. A pulling mechanism 3 and a toggle mechanism 4 are provided on both sides of the drive box 1, wherein the pulling mechanism 3 is used for pulling the ribs of a larger part. When in use, the hook 308 is first placed on the ribs, and the supporting plate 304 is placed on the upper part of the patient's chest cavity, and the entire first sliding platform 301 is pushed forward by rotating the screw 7. In this process, the entire rib part is pulled apart by the hook 308.

[0025] It should be further explained that the supporting plate 304 is connected to the first sliding platform 301 through the first connecting rod 303, and the first connecting rod 303 is configured as a telescopic rod structure, and a pressure spring is arranged on the outside of the telescopic rod to form an elastic structure, which can be used as an auxiliary when the sliding platform 301 is pushed forward. The design of the pressure spring can play a buffering role on the supporting plate 304.

[0026] like Figure 1 and Figure 3 As shown, the third connecting rod 307 is movably arranged inside the second connecting rod 305, and a first limit screw 306 is arranged on the upper part of the second connecting rod 305; the hook 308 is an arc-shaped hook, and the fixing ear at one end of the hook 308 is movably connected to the third connecting rod 307 through a pin shaft; the screw rod 7 is arranged inside the driving box 1, and one end of the screw rod 7 is connected to the first rotating handle 2 through a connector.

[0027] It should be noted that, since the hook 308 needs to be hooked at different positions, our hook 308 is connected to the second connecting rod 305 through the third connecting rod 307, and the length can be adjusted as needed. After the length is adjusted, it is fixed and limited by the first limiting screw 306.

[0028] It should be further explained that the screw rod 7 is manually driven by the first rotating handle 2. This design can obtain a larger torque force, thereby driving the sliding platform 301 forward.

[0029] like Figure 4 and Figure 5As shown, the toggle mechanism 4 includes a second sliding platform 401, a third sliding platform 402, a fourth sliding platform 403, a toggle rod 405, a positioning slot 406 and a driving mechanism, one end of the toggle rod 405 is movably connected to the fourth slide bar 410 on the fourth sliding platform 403 through a fourth slide slot 404; the fourth sliding platform 403 is connected to the third sliding platform 402 through a connecting rod, and the third sliding platform 402 is slidably connected to the third slide bar 409 inside the second sliding platform 401 through the third slide slot; the second sliding platform 401 is slidably connected to the second slide bar 8 on the other side of the drive box 1 through a second slide slot 407 on one end.

[0030] It should be noted that the toggle mechanism 4 is used for small-range rib toggle, and the entire device can slide on one side of the drive box 1 through the second sliding table 401 to achieve lateral displacement adjustment of the device; and the second sliding table 401 is connected to the fourth sliding table 403 through the third sliding table 402, and the fourth sliding table 403 can adjust the height on the third sliding table 402, and a toggle rod 405 is arranged on the upper part of the fourth sliding table 403, which is driven by the driving mechanism to pull the ribs apart through the toggle rod 405.

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, a plurality of positioning slots 406 are provided on the upper part of the toggle rod 405, and the positioning slots 406 are movably connected to the connecting holes on the toggle rod 405 through a pin shaft; a driving mechanism is provided on the upper part of the toggle rod 405, and the driving mechanism is connected to the rack 411 on the upper part of the fourth sliding platform 403; the driving mechanism includes a driving gear 412, a connecting block and a second rotating handle 413, the driving gear 412 is connected to the upper part of the fourth sliding platform 403 through the connecting block, and the driving gear 412 is meshed with the rack 411; a second rotating handle 413 is provided at one end of the connecting block, and the second rotating handle 413 is connected to the driving gear 412 through a rotating shaft; the supporting plate 304 is a semi-arc plate, and a flexible cushion layer is provided on the inner wall of the supporting plate 304.

[0032] It should be noted that a driving gear 412 is provided on the upper part of each toggle rod 405, which can be driven in cooperation with the rack 411 under the rotation of the second rotating handle 413. When in use, the positioning slot 406 on the toggle rod 405 is first connected to the rib part, and then the two toggle rods 405 are driven to move to pull the rib part apart. The whole structure is relatively simple and convenient to use.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rib retraction device for a thoracic surgeon, comprising a drive box (1), a screw (7), a first rotating handle (2), a retraction mechanism (3) and a toggle mechanism (4), characterized in that: The driving box (1) is a rectangular hollow structure, and a pulling mechanism (3) and a shifting mechanism (4) are respectively provided at two ends of the driving box (1); The retraction mechanism (3) comprises a first sliding platform (301), a connecting shaft (302), a first connecting rod (303), a second connecting rod (305), a third connecting rod (307), a bearing plate (304) and a hook (308); one end of the first sliding platform (301) is movably connected to the screw rod (7) and the first sliding bar (5) on the driving box (1) through a first sliding groove and a first screw hole, respectively; the other end of the sliding platform (301) is connected to the first connecting rod (303) and the second connecting rod (305) through the connecting shaft (302); one end of the first connecting rod (303) is provided with a bearing plate (304); the other end of the second connecting rod (305) is connected to the hook (308) through the third connecting rod (307).

2. A rib retraction device for thoracic surgeons according to claim 1, characterized in that: The third connecting rod (307) is movably arranged inside the second connecting rod (305), and a first limiting screw (306) is arranged on the upper part of the second connecting rod (305); The hook (308) is an arc-shaped hook, and a fixing ear at one end of the hook (308) is movably connected to the third connecting rod (307) via a pin.

3. A rib retraction device for thoracic surgeons according to claim 1, characterized in that: The screw rod (7) is arranged inside the drive box (1), and one end of the screw rod (7) is connected to the first rotating handle (2) via a connector.

4. A rib retraction device for thoracic surgeons according to claim 1, characterized in that: The toggle mechanism (4) comprises a second sliding platform (401), a third sliding platform (402), a fourth sliding platform (403), a toggle rod (405), a positioning slot (406) and a driving mechanism, and one end of the toggle rod (405) is movably connected to a fourth slide bar (410) on the fourth sliding platform (403) via a fourth slide slot (404); The fourth sliding platform (403) is connected to the third sliding platform (402) via a connecting rod, and the third sliding platform (402) is slidably connected to a third sliding bar (409) inside the second sliding platform (401) via a third sliding groove; The second sliding platform (401) is slidably connected to the second sliding bar (8) on the other side of the drive box (1) via a second sliding groove (407) on one end.

5. A rib retraction device for thoracic surgeons according to claim 4, characterized in that: A plurality of positioning slots (406) are provided on the upper portion of the toggle rod (405), and the positioning slots (406) are movably connected to the connecting holes on the toggle rod (405) via pins; A driving mechanism is provided on the upper portion of the toggle rod (405), and the driving mechanism is connected to a rack (411) on the upper portion of the fourth sliding platform (403).

6. A rib retraction device for thoracic surgeons according to claim 5, characterized in that: The driving mechanism comprises a driving gear (412), a connecting block and a second rotating handle (413); the driving gear (412) is connected to the upper part of the fourth sliding platform (403) through the connecting block, and the driving gear (412) is meshed with the rack (411); A second rotating handle (413) is provided at one end of the connection block, and the second rotating handle (413) is connected to the driving gear (412) via a rotating shaft.

7. The rib retraction device for thoracic surgeons according to claim 1, characterized in that: The bearing plate (304) is a semi-arc-shaped plate, and a flexible cushion layer is provided on the inner wall of the bearing plate (304).

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