Perineum visual field exposure device

Abstract

The present invention relates to a perineal visual field exposure device, which includes a fixed bracket (2), a spreader (5) and a lighting assembly. The fixed bracket (2) is used to detachably install the spreader (5), and the installation position of the spreader (5) on the fixed bracket (2) is adjustable. The lighting assembly is installed on the fixed bracket (2). Compared with the prior art, the present invention fixes the spreader (5) by the fixed bracket (2) and the installation position of the spreader (5) is adjustable. The surgeon can operate independently without the need for an assistant to assist with a retractor, saving operating space. At the same time, the position of the spreader (5) can be adjusted according to surgical needs. In addition, the device has its own lighting, avoiding repeated adjustment of external lighting, facilitating surgery, and complying with the principle of aseptic operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a perineum visual field exposure device. Background Art

[0002] The abdominoperineal radical resection (Miles procedure) is suitable for patients with low-lying rectal cancer who cannot preserve the anus to achieve radical resection. Because the surgery involves multiple areas, including the sigmoid colon, the entire rectum and its mesentery, the anal canal and surrounding skin and subcutaneous tissue, the entire anal sphincter, and lymph node clearance in the inferior mesenteric artery region, two surgeons, one in the abdomen and one in the perineum, are required to perform these tissue and organ removals.

[0003] When performing the Miles procedure on the perineum, the skin around the anal canal needs to be incised approximately 5 cm. At this point, the anal canal can be considered the inner circle of a concentric circle, and the skin incision is the outer circle. Taking the upper quadrant area as an example, the assistant uses a small S retractor to pull the tissue of the outer circle outward, and the surgeon pulls the tissue of the inner circle toward the opposite side. The pulling directions of the two are always opposite, so that there is a certain tension in the tissue, so that the gap can be fully exposed before segmentation. However, the operating space in the perineum is limited, and the assistant often stands on the outside of the patient's thigh to cooperate with the surgeon to expose the visual field. The long-term bending posture and the limitation of vision can easily lead to insufficient exposure of the surgical field, affecting the time and effect of the operation.

[0004] Existing perineal expanders have the following shortcomings: (1) They require the cooperation of at least one assistant and are still limited by space and vision; (2) The operation is cumbersome and requires the surgeon and the assistant to cooperate in repeatedly adjusting the pulling position, which affects the progress of the operation; (3) Some expanders are not firmly fixed, which increases the risk of surgical operation; (4) They do not have their own lighting device and need to rely on external lighting, and the lighting angle has to be adjusted frequently due to the small space in the perineum.

[0005] Therefore, it is necessary to provide a novel perineum visual field exposure device to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a perineum visual field exposure device in order to overcome the defects of the above-mentioned prior art.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A perineum visual field exposure device includes a fixed bracket, an expander and a lighting assembly. The fixed bracket is used for detachably installing the expander, and the installation position of the expander on the fixed bracket is adjustable. The lighting assembly is installed on the fixed bracket.

[0009] Preferably, the fixed bracket includes an annular fixed track, an expansion and support fixing frame and an adjustment component. The inner ring surface of the annular fixed track is provided with an annular track. The expansion and support fixing frame is installed at one end of the adjustment component, and the other end of the adjustment component is docked with the annular track through a walking structure. The expansion and support fixing frame is used for detachable installation of the expander.

[0010] Preferably, the adjustment assembly comprises a telescopic rod.

[0011] Preferably, the walking structure includes a roller engaged with the annular track and a brake member for locking the roller at a preset position of the annular track.

[0012] Preferably, the expansion fixing frame is in the shape of a frame, a buckle for fixing the expander is provided inside the frame of the expansion fixing frame, and the expander penetrates into the frame of the expansion fixing frame and is fastened and fixed by the buckle.

[0013] Preferably, the lighting assembly is detachably mounted on the fixing bracket.

[0014] Preferably, the lighting assembly includes a magnetic LED light chain, and a magnet for adsorbing the magnetic LED light chain is installed on the fixing bracket.

[0015] Preferably, the device also includes a support assembly for supporting and adjusting the position of the fixed bracket, the support assembly includes joint fixed bearings installed on both sides of the fixed bracket, a support lever is movably installed on the joint fixed bearing, and a fixed metal block is provided at the end of the support lever for fixation.

[0016] Preferably, the expander is a clamp-shaped expander, comprising two expansion arms and two handles, wherein one of the expansion arms is provided with a plurality of grooves arranged in sequence for locking the installation position of the expander when the expander is installed on the fixed bracket, the head of the expansion arm is a smooth flat expansion head, and a serrated buckle and a metal support plate for adjusting the expansion angle of the expansion arm are provided between the two handles.

[0017] Preferably, a hook is provided at the bottom of the fixing bracket.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) The present invention fixes the expander through a fixed bracket and the installation position of the expander is adjustable. The surgeon can operate independently without the need for an assistant to assist with the retractor, saving operating space. At the same time, the position of the expander can be adjusted according to surgical needs, making the operation convenient. In addition, the device has its own lighting device, avoiding repeated adjustment of the external lighting device.

[0020] (2) The fixing bracket of the present invention is provided with an annular fixing track, an expansion fixing frame and an adjustment assembly. The expansion fixing frame is used to fix the expander. The adjustment assembly is used to adjust the 360-degree rotation of the expansion fixing frame on the annular fixing track, thereby satisfying the adjustment of the orientation of the expander. After the expansion fixing frame is fixed, it does not need to be held by hand, which is convenient for surgery.

[0021] (3) The adjustment component of the present invention is designed as a telescopic rod, so that the fixed height of the expander can be adjusted according to the height of the expansion position required during the operation, which further facilitates the use during the operation.

[0022] (4) The lighting assembly of the present invention adopts a detachable magnetic LED light chain, which is fixed to the back of the circular track by magnetic attraction after being placed in a sterile plastic protective cover, and directly illuminates the perineum surgical field at close range, eliminating the need for repeated adjustment of the external lighting device. At the same time, it complies with the principle of aseptic operation. Except for the detachable LED lights, the rest of the magnetic LED light chain is made of metal, which is firmly fixed and can be reused after sterilization.

[0023] (5) The present invention is provided with a support assembly for supporting and adjusting the position of the fixed bracket, and utilizes a joint fixed bearing to realize the rotation of the fixed bracket relative to the support lever, thereby adjusting the fixed bracket to the most appropriate angle and orientation to suit patients of various body types.

[0024] (6) The expander of the present invention can achieve a secure fixation between the expander and the fixed bracket through the groove on the expander, effectively avoiding the risk of surgical operation. At the same time, the depth of the flat expansion head of the expander extending into the surgical area can be adjusted as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of a perineum visual field exposure device according to the present invention;

[0026] Figure 2 This is a rear view of a perineum visual field exposure device according to the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a circular fixed track of a perineum visual field exposure device according to the present invention;

[0028] Figure 4 This is a schematic structural diagram of a expander in a perineum visual field exposure device of the present invention;

[0029] Figure 5 The figure is a schematic diagram of the use of a perineum visual field exposure device of the present invention.

[0030] In the figure, 1 is the patient; 2 is the fixed bracket; 21 is the circular fixed track; 22 is the expansion fixed frame; 221 is the telescopic rod; 222 is the brake start and stop button; 223 is the buckle; 224 is the locking button; 23 is the joint fixed bearing; 24 is the fixed metal block; 25 is the hook; 3 is the magnetic LED light chain; 31 is the LED light; 32 is the magnet and wire; 33 is the plug; 4 is the internal structure of the circular fixed track; 41 is the circular track; 42 is the roller; 43 is the brake closed state; 44 is the brake open state; 5 is the expander; 51 is the expansion arm; 511 is the groove; 512 is the flat expansion head; 52 is the handle; 53 is the serrated buckle; 54 is the metal support sheet. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the following embodiments are merely illustrative in nature and the present invention is not intended to limit its applicable objects or uses, and the present invention is not limited to the following embodiments.

[0032] Example

[0033] Combine Figures 1 to 4 As shown, this embodiment provides a perineum visual field exposure device, which includes a fixed bracket 2, an expander 5 and a lighting assembly. The fixed bracket 2 is used for detachably installing the expander 5, and the installation position of the expander 5 on the fixed bracket 2 is adjustable. The lighting assembly is installed on the fixed bracket 2.

[0034] The perineal visual field exposure device provided by the present invention fixes the expander 5 through the fixed bracket 2, and the installation position of the expander 5 is adjustable. The surgeon can operate independently without the need for an assistant to assist with the retractor, saving operating space. At the same time, the position of the expander 5 can be adjusted according to surgical needs, which is convenient for operation. In addition, the device has its own lighting device, avoiding repeated adjustment of the external lighting device.

[0035] As a preferred embodiment, the fixed bracket 2 in this embodiment includes an annular fixed track 21, an expansion bracket 22, and an adjustment assembly. The inner annular surface of the annular fixed track 21 is provided with an annular track 41. The expansion bracket 22 is mounted on one end of the adjustment assembly, and the other end of the adjustment assembly is connected to the annular track 41 via a walking structure. The expansion bracket 22 is used for detachable installation of the expander 5. In this embodiment, the adjustment assembly uses a telescopic rod 221, so that the fixed height of the expander 5 can be adjusted according to the height of the expansion position required during surgery, further facilitating use during surgery. The walking structure includes a roller 42 that is engaged with the annular track 41 and a brake member for locking the roller 42 at a preset position on the annular track 41. The brake member passes through the interior of the adjustment assembly to the rectangular fixed bracket 2, and a brake start / stop button 222 is provided on both sides of the expansion bracket 22. The brake assembly is a conventional structure, including brake pads located on both sides of the roller 42 as shown in the figure, and a linkage rod that pulls the brake pads. The linkage rod passes through the interior of the adjustment assembly to the rectangular fixed bracket 2 and is connected to the brake start / stop button 222. The brake pad state is controlled by the brake start / stop button 222. When the brake start / stop button 222 is pressed, the brake assembly assumes the brake open state 44. At this time, the adjustment assembly can slide along the annular track 41 to adjust the position of the expansion bracket 22. When the expansion bracket 22 is adjusted to the appropriate position, the brake start / stop button 222 is released, and the brake assembly assumes the brake closed state 43, thereby fixing the position of the expansion bracket 22.

[0036] In this embodiment, the fixing bracket 2 is provided with an annular fixing track 21, an expansion fixing bracket 22 and an adjustment assembly. The expansion fixing bracket 22 is used to fix the expander 5. The adjustment assembly is used to adjust the 360° rotation of the expansion fixing bracket 22 on the annular fixing track 21, thereby meeting the adjustment of the orientation of the expander 5. After the expansion fixing bracket 22 is fixed, it does not need to be held by hand, which facilitates the operation.

[0037] As another preferred embodiment, the expansion and fixing frame 22 is in the shape of a frame. A buckle 223 for fixing the expander 5 is provided inside the frame of the expansion and fixing frame 22. The expander 5 is inserted into the frame of the expansion and fixing frame 22 and is fixed by the buckle 223. A locking button 224 is provided on the expansion and fixing frame 22. When the locking button 224 is not pressed, the buckle 223 is retracted into the frame of the expansion and fixing frame 22, allowing the expander 5 to move freely within the frame of the expansion and fixing frame 22. When the locking button 224 is pressed, the buckle 223 is raised and fixed, fixing the expander 5 in a certain position. This method can achieve a secure fixation of the expander 5 and effectively avoid surgical operation risks.

[0038] Furthermore, the lighting assembly is detachably mounted on the fixed bracket 2. The lighting assembly includes a magnetic LED light chain 3, which includes a plurality of LED lights 31 on the light chain. The back of the light chain is provided with a magnet and wires 32, and is powered by a plug 33. A magnet for adsorbing the magnetic LED light chain 3 is installed on the fixed bracket 2. During the operation, the magnetic LED light chain 3 is put into a sterile plastic protective cover and then adsorbed on the back of the fixed bracket 2 to ensure that the principle of sterility is always followed. The perineal surgical field is directly illuminated at close range, eliminating the need for repeated adjustment of the external lighting device. At the same time, it complies with the principle of aseptic operation. Except for the detachable LED lights, the rest of the magnetic LED light chain 3 is made of metal, is firmly fixed, and can be reused after sterilization.

[0039] Furthermore, the device also includes a support assembly for supporting and adjusting the position of the fixed bracket 2. The support assembly includes articulated bearings 23 mounted on either side of the fixed bracket 2. A support lever is movably mounted on the articulated bearings 23. A fixed metal block 24 is provided at the end of the support lever for fixation. The fixed metal block 24 can be secured to the lever via a screw knob. During surgery, the fixed metal block 24 is fixed to the lithotomy bracket, and the entire fixed bracket 2 is supported by the two support levers. Simultaneously, the articulated bearings 23 enable the fixed bracket 2 to rotate relative to the support levers, allowing the fixed bracket 2 to be adjusted to the most appropriate angle and orientation to accommodate patients of various body types.

[0040] Furthermore, the expander 5 is a clamp-shaped expander 5, including two expansion arms 51 and two handles 52. A number of grooves 511 are arranged in sequence on the expansion arm 51 on one side of the expander 5 for locking the installation position of the expander 5 when the expander 5 is installed on the fixed bracket 2. The expansion arm 51 on the other side is smoothed, and the expansion head is flat and also smoothed. The expander 5 handles 52 are anti-slip. A semicircular serrated buckle 53 is provided between the two handles 52, and there are also serrations inside the handle 52 on one side, which can fix the expansion angle after being gripped. A metal support plate 54 is also installed between the two handles 52. After pushing the two handles 52 in opposite directions to unlock the buckles, the metal support plate 54 expands the two handles 52, and the two arms at the front end of the expander 5 automatically return to a closed state. In this embodiment, the groove 511 on one side of the expander arm 51 of the expander 5 matches the buckle 223 inside the frame of the expander fixing frame 22 for fixing the expander 5. When fixing the expander 5, the expander arm 51 is adjusted and placed into the expander fixing frame 22. The flat expander head 512 is extended into the surgical area. After adjusting to the appropriate depth, the locking button 224 is pressed. The buckle 223 pops out and snaps into one of the grooves 511 to fix the expander 5. The handle 52 is pressed to adjust the degree of opening of the two expander arms 51 to maintain a certain tension on the tissue. In this embodiment, the expander 5 can be firmly fixed to the fixing frame 2 through the groove 511 on the expander 5, effectively avoiding surgical operation risks. At the same time, the depth of the flat expander head 512 of the expander 5 into the surgical area can be adjusted as needed.

[0041] In addition, a hook 25 is provided at the bottom of the fixing bracket 2, on which a sterile bag or a sterile basket can be placed, making it convenient to place and take out surgical instruments.

[0042] The above-mentioned perineal visual field exposure device is suitable for exposing the perineum during Miles surgery. The following describes the specific use of the device of the present invention during surgery.

[0043] like Figure 5 As shown, the specific operation process includes the following steps:

[0044] 1. Patient 1 takes the lithotomy position. After disinfection and draping, the high-temperature and high-pressure sterilized fixed bracket 2 is fixed to the lithotomy bracket through the fixed metal block 24. The joint fixed bearing 23 is adjusted to fix the fixed bracket 2 in the appropriate position.

[0045] 2. Place the magnetic LED light chain 3 into a sterile plastic protective cover, and magnetically position it around the back of the circular track 41 of the fixing bracket 2. Connect the plug 33 to the power supply and turn on the power.

[0046] 3. Place a sterile bag or sterile basket on the hook 25, cover the sterile basket with a surgical towel, and place the surgical instruments in it.

[0047] 4. After pressing the brake start / stop button 222 on the expansion bracket 22, the brake component presents the brake open state 44. At this time, the adjustment component can slide along the annular track 41 to adjust the position of the expansion bracket 22. When the expansion bracket 22 is adjusted to the appropriate position, release the brake start / stop button 222, and the brake component presents the brake closed state 43, thereby fixing the position of the expansion bracket 22. The fixed height of the bracket 22 can also be adjusted by the telescopic rod 221.

[0048] 5. Press the handle 52 to open the expander 5, place the expander arm 51 into the expander fixing frame 22, extend the flat expander head 512 into the surgical area, adjust it to the appropriate depth, and then press the locking button 224 to fix the expander 5. Press the handle 52 to adjust the degree of opening of the two expander arms 51 to keep a certain tension on the tissue.

[0049] 6. During the surgical operation, if the position of the expander 5 needs to be adjusted, first push the handle 52 in the opposite direction, release the serrated buckle 53 to reset the expander arm 51, then press the brake start / stop button 222 or adjust the telescopic rod 221 to the appropriate position, and finally press the handle 52 to open the expander arm 51 to the appropriate angle.

[0050] 7. After the operation, remove the magnetic LED light chain 3, expander 5 and fixed bracket 2 for further cleaning and high temperature and high pressure sterilization.

[0051] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0052] The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments can be implemented in various other ways, and various omissions, replacements, and changes can be made without departing from the technical concept of the present invention.

Claims

1. A perineum visual field exposure device, characterized in that: The device comprises a fixed bracket (2), an expander (5) and a lighting assembly, wherein the fixed bracket (2) is used for detachably mounting the expander (5), and the mounting position of the expander (5) on the fixed bracket (2) is adjustable, and the lighting assembly is mounted on the fixed bracket (2); the fixed bracket (2) comprises an annular fixed track (21), an expansion fixing frame (22) and an adjustment assembly, the inner annular surface of the annular fixed track (21) is provided with an annular track (41), one end of the adjustment assembly is mounted with the expansion fixing frame (22), and the other end of the adjustment assembly is docked with the annular track (41) through a walking structure, and the expansion fixing frame (22) is used for detachably mounting the expander (5); the expansion fixing frame (22) is frame-shaped, and the expansion fixing frame (22) is provided with an annular track (41). The frame of the expansion fixing frame (22) is provided with a buckle (223) for fixing the expander (5), and the expander (5) is inserted into the frame of the expansion fixing frame (22) and is clamped and fixed by the buckle (223); the expander (5) is a clamp-shaped expander (5), including two expansion arms (51) and two handles (52), one of the expansion arms (51) is sequentially arranged with a plurality of grooves (511) for locking the installation position of the expander (5) when the expander (5) is installed on the fixing bracket (2), the head of the expansion arm (51) is a smooth flat expansion head (512), and a serrated buckle (53) and a metal support sheet (54) for adjusting the expansion angle of the expansion arm (51) are provided between the two handles (52).

2. The perineum visual field exposure device according to claim 1, characterized in that: The adjustment assembly comprises a telescopic rod (221).

3. The perineum visual field exposure device according to claim 1, characterized in that: The walking structure comprises a roller (42) engaged with the annular track (41) and a brake member for locking the roller (42) at a preset position of the annular track (41).

4. The perineum visual field exposure device according to claim 1, characterized in that: The lighting assembly is detachably mounted on the fixing bracket (2).

5. The perineum visual field exposure device according to claim 4, characterized in that: The lighting assembly comprises a magnetic LED light chain (3), and a magnet for adsorbing the magnetic LED light chain (3) is installed on the fixing bracket (2).

6. The perineum visual field exposure device according to claim 1, characterized in that: The device also includes a support assembly for supporting and adjusting the position of the fixed bracket (2), the support assembly including joint fixed bearings (23) installed on both sides of the fixed bracket (2), a support lever movably installed on the joint fixed bearing (23), and a fixed metal block (24) for fixing is provided at the end of the support lever.

7. The perineum visual field exposure device according to claim 1, characterized in that: A hook (25) is provided at the bottom of the fixing bracket (2).

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