Tissue retractor device for clinical operation

Abstract

The invention discloses a tissue retraction retractor device for clinical surgery, and belongs to the field of medical instruments, the tissue retraction retractor device comprises a bottom ring, a middle ring, a top ring and a retraction mechanism, the middle ring is rotatably arranged above the bottom ring, the top ring is arranged above the middle ring, the bottom ring comprises a first annular plate, and first sliding grooves are formed in the inner wall of the first annular plate in a circumferential array mode; the retraction mechanism comprises a first sliding rod and a second sliding rod, the second sliding rod is arranged above the first sliding rod, the first sliding rod is arranged in the first sliding groove in a sliding mode, the second sliding rod is arranged between the middle ring and the top ring, and a bandage is arranged on the side wall of the bottom ring. The device can automatically expand a wound, can be flexibly adjusted according to the shape of the wound, and is suitable for various operation scenes.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular refers to a tissue retraction hook device for clinical surgery. Background Art

[0002] In surgical operations, it is often necessary to retract patient tissues with hooks to expand the wound, expand the operating space, and facilitate the operation. Today's common retractor devices are usually manually operated, which is more flexible and suitable for a variety of situations, but requires medical staff to observe the shape of the wound to retract at different angles and fix them manually, which requires strong surgical experience and takes up surgical time, which is inconvenient. Today, there are some devices on the market that can achieve automatic retractors, but such devices can usually only retract patient tissues from a single direction, require multiple devices to complete wound expansion, and need to adjust each device, which has certain defects. At the same time, there are also some devices on the market that can achieve synchronous outward expansion of the wound, but such devices can usually only be used for circular regular wounds. However, in clinical operations, when facing different types of operations, the shape of the wound is often irregular. When facing such wounds, if they expand from the center of the wound to different angles, the distance required to be retracted is also different, and such devices cannot be applied. Therefore, a retractor device that can be flexibly adjusted according to the shape of the wound and is suitable for various types of operations is needed. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a tissue retraction hook device for clinical surgery, which can automatically expand the wound and can be flexibly adjusted according to the shape of the wound, and is suitable for a variety of surgical scenarios.

[0004] The technical solution adopted by the present invention is as follows: The present invention provides a tissue retraction hook device for clinical surgery, including a bottom ring, a middle ring, a top ring and a retraction mechanism, the middle ring is rotatably arranged above the bottom ring, the top ring is arranged above the middle ring, the bottom ring includes an annular plate 1, a sliding groove 1 is opened in a circular array on the inner wall of the annular plate 1, the retraction mechanism includes a sliding rod 1 and a sliding rod 2, the sliding rod 2 is arranged above the sliding rod 1, the sliding rod 1 is slidably arranged in the sliding groove 1, the sliding rod 2 is arranged between the middle ring and the top ring, and the side wall of the bottom ring is provided with a strap.

[0005] Furthermore, the bottom ring also includes an annular groove, an extension plate, a driving bin, a motor and a driving gear, the annular groove is opened on a top wall of the annular plate, the extension plate is arranged on a side wall of the annular plate, the driving bin is arranged at the bottom of the extension plate, the motor is arranged in the driving bin, the driving gear is rotatably arranged on the top of the extension plate, and the driving gear is transmission-connected to the output end of the motor.

[0006] Furthermore, a clamping plate is slidably provided in the slide groove 1, and a spring is provided between the side wall of the slide groove 1 away from the annular plate 1 and the clamping plate.

[0007] Furthermore, the middle ring includes an annular plate 2, the bottom wall of which is provided with a snap ring, the snap ring is clamped in the annular groove, the snap ring is fitted with the inner wall of the annular groove, the top wall of the annular plate 2 is provided with a snap buckle in a circumferential array, and the side wall of the annular plate 2 is provided with a passive gear.

[0008] Wherein, the passive gear and the active gear are meshed with each other.

[0009] Furthermore, the top ring includes an annular plate three, the bottom wall of the annular plate three is provided with a circumferential array of slots, the buckles are inserted into the slots, the slots and the buckles fit each other, and the bottom wall of the annular plate three is also provided with a rubber pad.

[0010] Furthermore, the retraction mechanism also includes a rotating shaft, which is rotatably arranged between slide bar 1 and slide bar 2, and the rotating shaft is arranged at one end of slide bar 1 and slide bar 2 close to the center of annular plate 1. A sliding groove 2 is opened on the top wall of slide bar 2, and a screw is rotatably arranged in the sliding groove 2. A handle is provided at the end of the screw away from the rotating shaft, and the handle is arranged on the outside of the sliding groove 2. A groove is opened on the bottom wall of slide bar 2, and a ball is rotatably arranged in the groove.

[0011] Furthermore, a slider 1 is slidably provided in the second slide groove, the slider 1 is fitted with the inner wall of the second slide groove, a screw hole is penetrated through the slider 1, the screw hole is engaged with the screw thread, and a limit plate is rotatably provided on the top of the slider 1.

[0012] Preferably, the top wall of the limiting plate is made of a material with high friction.

[0013] Furthermore, a slide groove three is provided at one end of the slide rod close to the center of the annular plate, and the hook-pull mechanism includes a slider two, the slide groove three is open on one side close to the annular plate one, the slider two is slidably arranged in the slide groove three, and a pull hook is provided at one end of the slider two close to the center of the annular plate one.

[0014] Furthermore, the hook-and-pull mechanism is replaceable, and a hook-and-pull mechanism with different pull hooks can be selected according to the depth of the wound to adapt to various situations.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: the present scheme provides a tissue retraction hook device for clinical surgery. When facing an irregular wound, according to the expected wound shape and depth, a hook-pulling mechanism with a retractor adapted to the wound is installed along the slide groove three at the end of the retraction mechanism. The retraction mechanism is installed, the slide rod one is inserted into the slide groove one to abut against the clamping plate, the slide rod two is placed on the top surface of the middle ring, and the handle is turned according to the angle of the retraction mechanism and the expected shape of the wound. The position of the slider one and the limit plate is adjusted by the screw rod. The number of retraction mechanisms to be installed and the installation angle are selected according to the actual situation of the wound. Subsequently, the slot at the bottom of the top ring is aligned with the buckle, and the top ring is installed on the top of the middle ring so that the bottom wall of the annular plate three is close to the limit plate. The motor is started, and the motor drives the driving gear to rotate. The active gear drives the middle ring and the top ring to rotate through the passive gear. When the middle ring and the top ring rotate, the slide bar 2 follows the top ring to rotate with the limit plate as the fulcrum, and an angle appears between the slide bar 1 and the slide bar 2. Since the rotating shaft and the center of the top ring do not coincide, when the top ring drives the slide bar 2 to rotate, as the angle between the slide bar 1 and the slide bar 2 increases, the slide bar 2 pulls the slide bar 1 outward along the slide groove 1 through the rotating shaft, thereby expanding the wound and facilitating subsequent surgery. At the same time, the position of the slider 1 can be adjusted to adjust the moving distance of the slide bar 1 when the top ring rotates by the same angle. The closer the slider 1 is to the rotating shaft, when the top ring rotates by the same angle, the larger the angle between the slide bar 1 and the slide bar 2 is, and the longer the distance the slide bar 1 moves is, so that the hook-pull mechanism at the current angle can expand the wound more and adapt to wounds of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a tissue retraction hook device for clinical surgery provided by the present invention; Figure 2 A schematic diagram of the structure of a tissue retraction hook device for clinical surgery provided by the present invention for removing a top ring and a binding band; Figure 3 A schematic diagram of the structure of the bottom ring provided by the present invention; Figure 4 A cross-sectional view of the bottom ring provided by the present invention; Figure 5 A schematic diagram of the structure of the top ring provided by the present invention; Figure 6 A schematic diagram of the structure of the middle ring provided by the present invention; Figure 7 A schematic diagram of the structure of the retraction mechanism provided by the present invention; Figure 8 A schematic diagram of the structure of the pulling mechanism and the hooking mechanism provided by the present invention; Fig. 9 A cross-sectional view of the retraction mechanism provided by the present invention; Among them, 1. bottom ring, 2. middle ring, 3. top ring, 4. pulling mechanism, 5. hooking mechanism, 6. binding belt, 101. annular plate 1, 102. annular groove, 103. slide groove 1, 104. extension plate, 105. driving bin, 106. motor, 107. driving gear, 108. tightening plate, 109. spring, 201. annular plate 2, 202. snap ring, 203. buckle, 204. passive gear, 301. annular plate 3, 302. slot, 303. rubber pad, 401. slide bar 1, 402. slide bar 2, 403. rotating shaft, 404. slide groove 2, 405. screw, 406. handle, 407. slider 1, 408. limit plate, 409. slide groove 3, 410. groove, 411. ball, 501. slider 2, 502. hook.

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] like Figure 1-Figure 9 As shown, the present invention provides a tissue retraction hook device for clinical surgery, comprising a bottom ring 1, a middle ring 2, a top ring 3 and a retraction mechanism 4, wherein the middle ring 2 is rotatably arranged above the bottom ring 1, and the top ring 3 is arranged above the middle ring 2, the bottom ring 1 comprises an annular plate 101, and a sliding groove 103 is provided in a circular array on the inner wall of the annular plate 101, the retraction mechanism 4 comprises a sliding bar 1 401 and a sliding bar 2 402, the sliding bar 2 402 is arranged above the sliding bar 1 401, the sliding bar 1 401 is slidably arranged in the sliding groove 103, the sliding bar 2 402 is arranged between the middle ring 2 and the top ring 3, and a binding strap 6 is provided on the side wall of the bottom ring 1.

[0021] Furthermore, the bottom ring 1 also includes an annular groove 102, an extension plate 104, a driving bin 105, a motor 106 and a driving gear 107. The annular groove 102 is opened on the top wall of the annular plate 101, the extension plate 104 is arranged on the side wall of the annular plate 101, the driving bin 105 is arranged at the bottom of the extension plate 104, the motor 106 is arranged in the driving bin 105, and the driving gear 107 is rotatably arranged on the top of the extension plate 104, and the driving gear 107 is transmission-connected to the output end of the motor 106.

[0022] Furthermore, a clamping plate 108 is slidably provided in the slide groove 103 , and a spring 109 is provided between the side wall of the slide groove 103 away from the annular plate 101 and the clamping plate 108 .

[0023] Furthermore, the middle ring 2 includes an annular plate 201, a retaining ring 202 is provided on the bottom wall of the annular plate 201, the retaining ring 202 is clamped in the annular groove 102, the retaining ring 202 is fitted with the inner wall of the annular groove 102, a buckle 203 is provided in a circular array on the top wall of the annular plate 201, and a passive gear 204 is provided on the side wall of the annular plate 201.

[0024] The passive gear 204 and the active gear 107 are meshed with each other.

[0025] Furthermore, the top ring 3 includes an annular plate 301, and a circumferential array of slots 302 are provided on the bottom wall of the annular plate 301. The buckles 203 are inserted into the slots 302, and the slots 302 and the buckles 203 fit each other. A rubber pad 303 is also provided on the bottom wall of the annular plate 301.

[0026] Furthermore, the pulling mechanism 4 also includes a rotating shaft 403, which is rotatably arranged between the slide bar 1 401 and the slide bar 2 402. The rotating shaft 403 is arranged at one end of the slide bar 1 401 and the slide bar 2 402 close to the center of the annular plate 101. The top wall of the slide bar 2 402 is provided with a sliding groove 2 404, and a screw 405 is rotatably arranged in the sliding groove 2 404. A handle 406 is arranged at the end of the screw 405 away from the rotating shaft 403, and the handle 406 is arranged on the outside of the sliding groove 2 404. The bottom wall of the slide bar 2 402 is provided with a groove 410, and a ball 411 is rotatably arranged in the groove 410.

[0027] Furthermore, a slider 407 is slidably provided in the second slide groove 404, and the slider 407 is fitted with the inner wall of the second slide groove 404. A screw hole is penetrated through the slider 407, and the screw hole is threadedly engaged with the screw rod 405. A limit plate 408 is rotatably provided on the top of the slider 407.

[0028] Preferably, the top wall of the limiting plate 408 is made of a material with high friction.

[0029] Furthermore, a slide groove 3 409 is provided at one end of the slide rod 401 close to the center of the annular plate 101, and the hook-pull mechanism 5 includes a slider 2 501, the slide groove 3 409 is opened on one side close to the annular plate 101, the slider 2 501 is slidably arranged in the slide groove 3 409, and a pull hook 502 is provided at one end of the slider 2 501 close to the center of the annular plate 101.

[0030] Furthermore, the hook-pull mechanism 5 is replaceable, and a hook-pull mechanism 5 with different pull hooks 502 can be selected according to the depth of the wound to adapt to various situations.

[0031] When used specifically, firstly, a preoperative opening plan is formulated according to the patient and the surgical conditions, and the present invention is prepared preoperatively according to the expected wound. According to the expected wound shape and depth, the hooking mechanism 5 with the retracting hook 502 adapted to the wound is installed along the slide groove 3 409 at the end of the retracting mechanism 4, and then the top ring 3 is removed to start installing the retracting mechanism 4. When installing the retracting mechanism 4, the slide bar 1 401 and the slide bar 2 402 of the retracting mechanism 4 need to be in the following positions: Figure 8 In the state shown, the slide bar 1 401 is inserted into the slide groove 1 103 to fit the abutting plate 108, the slide bar 2 402 is placed on the top surface of the middle ring 2, and the handle 406 is turned according to the angle of the retracting mechanism 4 and the shape of the expected wound, and the position of the slide bar 1 407 and the limit plate 408 is adjusted by the screw 405. The number of installed retracting mechanisms 4 and the installation angle are determined according to the actual situation of the wound, and then the groove 302 at the bottom of the top ring 3 is aligned with the buckle 203, and the top ring 3 is installed on the top of the middle ring 2, so that the bottom wall of the rubber pad 303 is close to the limit plate 408, and the preoperative preparation is completed; After the operation begins, an incision is made on the patient's body according to the established plan, and then the present invention is placed directly above the incision and fixed by means of a bandage 6, and then the position and angle of the present invention are slightly adjusted so that the hooks 502 of all the hooking and pulling mechanisms 5 hook the inside of the incision from the inside, and then the motor 106 is started, and the motor 106 drives the active gear 107 to rotate, and the active gear 107 drives the middle ring 2 and the top ring 3 to rotate through the passive gear 204. When the middle ring 2 and the top ring 3 rotate, the second slide bar 402 rotates with the top ring 3 with the limit plate 408 as the fulcrum, and an angle appears between the first slide bar 401 and the second slide bar 402. At the same time, since the center of the rotating shaft 403 and the top ring 3 do not coincide, when the top ring 3 drives the second slide bar 402 to rotate When the top ring 3 rotates by the same angle, the movement distance of the slide bar 401 changes according to the position of the limit plate 408 and the slider 1 407 in the slide groove 2 404. The closer the slider 1 407 is to the rotation shaft 403, when the top ring 3 rotates by the same angle, the larger the angle between the slide bar 1 401 and the slide bar 2 402 is, and the longer the movement distance of the slide bar 1 401 is, so that the hook-pull mechanism 5 at the current angle can expand the wound more, thereby adapting to wounds of different shapes.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A tissue retraction hook device for clinical surgery, characterized in that: The invention comprises a bottom ring (1), a middle ring (2), a top ring (3) and a pulling-out mechanism (4), wherein the middle ring (2) is rotatably arranged above the bottom ring (1), and the top ring (3) is arranged above the middle ring (2). The bottom ring (1) comprises an annular plate (101), and a sliding groove (103) is provided in a circular array on the inner wall of the annular plate (101). The pulling-out mechanism (4) comprises a sliding rod (401) and a sliding rod (402), wherein the sliding rod (402) is arranged above the sliding rod (401), the sliding rod (401) is slidably arranged in the sliding groove (103), and the sliding rod (402) is arranged between the middle ring (2) and the top ring (3).

2. A tissue retraction hook device for clinical surgery according to claim 1, characterized in that: The bottom ring (1) further comprises an annular groove (102), an extension plate (104), a driving chamber (105), a motor (106) and a driving gear (107); the annular groove (102) is formed on the top wall of the annular plate (101); the extension plate (104) is arranged on the side wall of the annular plate (101); the driving chamber (105) is arranged on the bottom of the extension plate (104); the motor (106) is arranged in the driving chamber (105); the driving gear (107) is rotatably arranged on the top of the extension plate (104); and the driving gear (107) is drivingly connected to the output end of the motor (106).

3. A tissue retraction hook device for clinical surgery according to claim 2, characterized in that: The pulling mechanism (4) further comprises a rotating shaft (403), wherein the rotating shaft (403) is rotatably arranged between the first slide bar (401) and the second slide bar (402), wherein the rotating shaft (403) is arranged at one end of the first slide bar (401) and the second slide bar (402) close to the center of the circle of the first annular plate (101), wherein the top wall of the second slide bar (402) is provided with a second slide groove (404), wherein a screw rod (405) is rotatably arranged in the second slide groove (404), wherein a handle (406) is arranged at one end of the screw rod (405) away from the rotating shaft (403), wherein the handle (406) is arranged on the outside of the second slide groove (404), wherein a groove (410) is provided with a ball bearing (411) rotatably arranged in the groove (410), wherein a groove (410) is provided with a ball bearing (411).

4. A tissue retraction hook device for clinical surgery according to claim 3, characterized in that: The middle ring (2) comprises an annular plate 2 (201), the bottom wall of the annular plate 2 (201) is provided with a snap ring (202), the snap ring (202) is clamped in the annular groove (102), the snap ring (202) is fitted with the inner wall of the annular groove (102), the top wall of the annular plate 2 (201) is provided with snap buckles (203) in a circumferential array, the side wall of the annular plate 2 (201) is provided with a passive gear (204), the passive gear (204) is meshed with the active gear (107).

5. A tissue retraction hook device for clinical surgery according to claim 4, characterized in that: The top ring (3) comprises an annular plate three (301), the bottom wall of the annular plate three (301) is provided with a circumferential array of slots (302), the buckles (203) are inserted into the slots (302), the slots (302) and the buckles (203) are fitted with each other, and the bottom wall of the annular plate three (301) is also provided with a rubber pad (303).

6. A tissue retraction hook device for clinical surgery according to claim 5, characterized in that: A slider (407) is slidably disposed in the second slide groove (404), and the slider (407) is in contact with the inner wall of the second slide groove (404). A screw hole is penetrated through the slider (407), and the screw hole is threadedly engaged with the screw rod (405). A limit plate (408) is rotatably disposed at the top of the slider (407).

7. A tissue retraction hook device for clinical surgery according to claim 6, characterized in that: The sliding rod 1 (401) is provided with a sliding groove 3 (409) at one end close to the center of the annular plate 1 (101), and the hook-pull mechanism (5) includes a sliding block 2 (501), wherein the sliding groove 3 (409) is opened on one side close to the annular plate 1 (101), and the sliding block 2 (501) is slidably arranged in the sliding groove 3 (409), and a pulling hook (502) is provided at one end of the sliding block 2 (501) close to the center of the annular plate 1 (101).

8. The tissue retraction hook device for clinical surgery according to claim 7, characterized in that: A clamping plate (108) is slidably disposed in the slide groove one (103), and a spring (109) is disposed between the side wall of the slide groove one (103) away from the annular plate one (101) and the clamping plate (108).

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