Adjustable skin flap retractor used in operation

Abstract

The invention discloses an adjustable skin flap traction device used in an operation. The adjustable skin flap traction device comprises a supporting assembly, a lifting assembly, an expanding assembly and a traction assembly. The lifting assembly is arranged at the upper end of the supporting assembly. The expanding assembly is arranged at the rear end of the lifting assembly; the traction assembly is arranged at the upper end of the expanding assembly; the expanding assembly comprises an expanding shell, an expanding sliding block, an expanding rod, an expanding screw rod, an expanding rotary knob and an expanding sliding groove. The front end of the expanding shell is vertically connected with the lifting assembly, a groove is formed in the expanding shell and rotationally connected with the expanding rod, and an expanding sliding groove is formed in the top. The rear end of the expanding rod penetrates through the expanding shell and is provided with an expanding knob, and expanding screws are symmetrically arranged at the two ends of the expanding rod and are in threaded connection with the expanding sliding blocks; the upper end of the expanding sliding block is fixedly connected with a retracting ring; the expanding rod is driven to rotate by rotating the expanding knob, so that the traction rings at the two ends can be relatively close to or far away from each other, and the difference of body contours and surgical sites of patients with different body types can be determined.

Description

Technical Field

[0001] The invention belongs to the technical field of breast surgery, and in particular relates to an adjustable skin flap retractor used during surgery. Background Art

[0002] In the field of surgery, especially in operations involving flap manipulation, such as breast surgery, good exposure of the flap is one of the key factors for the success of the operation. During the operation, the doctor needs to clearly observe the tissue structure, blood vessel and nerve distribution under the flap, and the surgical operation area to ensure the accuracy and safety of the operation. In radical mastectomy, in order to completely remove tumor tissue and protect important blood vessels and nerves, the flap needs to be fully pulled to fully expose structures such as axillary lymph nodes and chest wall muscles. Traditional pulling methods often rely on assistants to use surgical instruments for manual pulling. This method has many inconveniences and limitations. Since it is difficult for the assistant's strength and operation direction to be completely consistent, this traditional operation method easily leads to uneven pulling force and inconsistent direction of the flap, thereby affecting the freeing effect of the flap and increasing the operation time and complexity.

[0003] In the prior art, when the flap pulling device is used, due to the use of a circular ring for pulling, its applicability is poor when facing patients of different body shapes, and it can only pull the flap within the circular ring, and the size of the circular ring cannot be adjusted;

[0004] Therefore, in view of the above-mentioned existing technical problems, the present invention proposes an adjustable intraoperative skin flap retractor. Summary of the invention

[0005] In order to solve the above technical problems, the present invention designs an adjustable intraoperative skin flap retractor, by arranging a lifting component on the support component, and driving the lifting rack to lift and lower by a worm gear, thereby improving the applicability of the device, and arranging an expansion component at the rear end of the lifting component, by arranging an expansion rod on the expansion component to symmetrically thread the traction ring, so that the traction rings at both ends can be relatively close to or away from each other by rotating the expansion rod, so that the device can adjust the distance between the traction rings on both sides according to patients of different body shapes, further improving the applicability of the device;

[0006] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: an adjustable intraoperative flap retractor, comprising: a supporting component, a lifting component, an expanding component, and a retracting component;

[0007] A lifting assembly is disposed at the upper end of the support assembly; an expansion assembly is disposed at the rear end of the lifting assembly; and a pulling assembly is disposed at the upper end of the expansion assembly;

[0008] The expansion assembly includes an expansion shell, an expansion slider, an expansion rod, an expansion screw, an expansion knob, and an expansion slot; the front end of the expansion shell is vertically connected to the lifting assembly, a slot is provided inside the expansion shell to be rotatably connected to the expansion rod, and an expansion slot is provided on the top; the rear end of the expansion rod penetrates the expansion shell to set an expansion knob, and expansion screws are symmetrically provided at both ends of the expansion rod to be threadedly connected to the expansion slider; the upper end of the expansion slider is fixedly connected to the retraction ring;

[0009] Furthermore, the expansion screws at both ends of the expansion rod have the same thread pitch and opposite thread rotation directions;

[0010] Furthermore, the support assembly includes a support column, a fixing plate, a fixing screw, a fixing knob, and a clamping plate; two fixing plates are arranged at the lower end of the support column, and a rectangular groove is arranged at the upper end of the support column; a hole is arranged in the center of the fixing plate at the lower end to be threadedly connected to the fixing screw; a fixing knob is arranged at the lower end of the fixing screw, and a clamping plate is arranged at the upper end;

[0011] Furthermore, the lifting assembly includes a coupling shaft, a worm wheel, a gear, a worm, a lifting knob, and a lifting rack; the middle of the support column is rotatably connected to the coupling shaft, and one side is slidably connected to the lifting rack; the coupling shaft is respectively fixedly connected to the worm wheel and the gear; the gear meshes with the lifting rack; the lower end of the worm wheel is provided with a worm for meshing; the front end of the worm penetrates the support column to provide a lifting knob; the upper end of the lifting rack is vertically connected to the expansion housing;

[0012] Further, the pulling assembly includes a pulling ring, a pulling slide, a pulling hook, a pulling slider, a pulling knob, a pulling screw, a pulling plate, a telescopic plate, and a limiting groove; the front end of the pulling ring is fixedly connected to the expanded slider, and a pulling slide is provided in the middle to be slidably connected to the pulling slider; the pulling slider; the center of the pulling slider is provided with a hole to be threadedly connected to the pulling screw; the rear end of the pulling screw is provided with a pulling knob, and the front end is fixedly connected to the pulling plate; the lower end of the pulling plate is provided with a groove, and a plurality of limiting grooves are provided in an array at both ends of the groove to be slidably connected to the telescopic plate; the lower end of the telescopic plate is provided with a pulling hook;

[0013] Furthermore, a plurality of pulling sliders are arranged on the pulling slide;

[0014] Furthermore, the pulling ring is symmetrically arranged on both sides to form a circular ring;

[0015] Furthermore, holes are symmetrically provided on both sides of the upper end of the telescopic plate to arrange springs; and a limiting groove for movable connection of the telescopic rod is provided at the front end of the spring.

[0016] The beneficial effects of the present invention are:

[0017] The present invention realizes flap traction through a mechanical structure, avoiding the problem of uneven force caused by the difficulty in maintaining consistency between the assistant's force and the operation direction in traditional manual traction; it can stably provide continuous and uniform traction force for the flap, ensuring that the flap is in the best exposure state; and, by rotating the expansion knob to drive the expansion rod to rotate, the traction rings at both ends can be relatively close or far away, so that the distance between the traction rings on both sides can be flexibly adjusted according to the body contours of patients with different body shapes and differences in surgical sites, ensuring that flaps of different ranges and positions can be effectively pulled, greatly improving the applicability of the device to different patient groups;

[0018] At the same time, multiple traction sliders are arranged on the traction slide in the traction assembly, and the traction sliders can be pulled to slide on the traction slide according to the needs of the operation to achieve multi-angle and multi-directional traction; and the telescopic plate enables the position and range of the traction point to be further fine-tuned during the traction process to meet various complex and changeable scenarios during the operation, cope with the traction needs of flaps of different sizes and shapes, and change the traction strategy at any time as needed during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0020] Figure 1 It is a schematic diagram of the overall structure of an adjustable flap retractor used during surgery;

[0021] Figure 2 It is a side view of an adjustable intraoperative flap retractor;

[0022] Figure 3 It is a cross-sectional view from above of an adjustable intraoperative flap retractor;

[0023] Figure 4 A is a partial structural diagram of an adjustable flap retractor for intraoperative use;

[0024] Figure 5 It is a cross-sectional view of the expansion component of an adjustable intraoperative flap retractor;

[0025] Figure 6 The present invention is a schematic diagram of the structure of a pulling slider of an adjustable flap pulling device used during surgery;

[0026] Figure 7 It is a schematic diagram of the connection structure of the telescopic plate of an adjustable intraoperative flap retractor;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1-support assembly, 101-support column, 102-fixed plate, 103-fixed screw, 104-fixed knob, 105-clamping plate, 2-lifting assembly, 201-coupling, 202-worm gear, 203-gear, 204-worm, 205-lifting knob, 206-lifting rack, 3-expansion assembly, 301-expansion shell, 302-expansion slider, 303-expansion rod, 304-expansion screw, 305-expansion knob, 306-expansion slide, 4-pull assembly, 401-pull ring, 402-pull slide, 403-pull hook, 404-pull slider, 405-pull knob, 406-pull screw, 407-pull plate, 408-telescopic plate, 4081-telescopic rod, 4082-spring, 4083-limiting groove. DETAILED DESCRIPTION

[0029] The present invention discloses an adjustable intraoperative skin flap retractor, comprising: a support component 1, a lifting component 2, an expansion component 3, and a pulling component 4; the lifting component 2 is arranged at the upper end of the support component 1; the expansion component 3 is arranged at the rear end of the lifting component 2; the pulling component 4 is arranged at the upper end of the expansion component 3; the expansion component 3 comprises an expansion shell 301, an expansion slider 302, an expansion rod 303, an expansion screw 304, an expansion knob 305, and an expansion slide 306; the front end of the expansion shell 301 is vertically connected to the lifting component 2, and the expansion shell 305 is vertically connected to the lifting component 2. A groove is provided inside the shell 301 to rotatably connect the expansion rod 303, and an expansion slide groove 306 is provided on the top; the rear end of the expansion rod 303 penetrates the expansion shell 301 to set an expansion knob 305, and expansion screws 304 are symmetrically provided at both ends of the expansion rod 303 and threadedly connected to the expansion slider 302; the upper end of the expansion slider 302 is fixedly connected to the traction ring; by rotating the expansion knob 305 to drive the expansion rod 303 to rotate, the traction rings 401 at both ends can be made relatively close or far away, so as to be able to adapt to the body contours and surgical sites of patients with different body shapes.

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1

[0032] like Figure 1 , 5-7, the upper end of the support component 1 is provided with a lifting component 2; the rear end of the lifting component 2 is provided with an expansion component 3; the upper end of the expansion component 3 is provided with a pulling component 4; the expansion component 3 includes an expansion shell 301, an expansion slider 302, an expansion rod 303, an expansion screw 304, an expansion knob 305, and an expansion slot 306; the front end of the expansion shell 301 is vertically connected to the lifting component 2, a groove is provided inside the expansion shell 301 to rotatably connect the expansion rod 303, and an expansion slot 306 is provided on the top; the rear end of the expansion rod 303 penetrates the expansion shell 301 to provide an expansion knob 305, and the two ends of the expansion rod 303 are symmetrically provided with expansion screws 304 threadedly connected to the expansion slider 302; the upper end of the expansion slider 302 is fixedly connected to the pulling ring; the expansion screws 304 at both ends of the expansion rod 303 have the same thread pitch and opposite thread rotation direction;

[0033] The pulling assembly 4 includes a pulling ring 401, a pulling slot 402, a pulling hook 403, a pulling slider 404, a pulling knob 405, a pulling screw 406, a pulling plate 407, a telescopic plate 408, and a limiting groove 4083; the front end of the pulling ring 401 is fixedly connected to the expanded slider 302, and the middle part is provided with a pulling slot 402 for sliding connection with the pulling slider 404; the pulling slider 404; the center of the pulling slider 404 is provided with a hole threadedly connected to the pulling screw 406; the rear end of the pulling screw 406 is provided with a pulling knob The button 405 is fixedly connected to the pulling plate 407 at the front end; the pulling plate 407 is provided at the lower end, and a plurality of limit grooves 4083 are arranged in an array at both ends to be slidably connected to the telescopic plate 408; a pulling hook 403 is arranged at the lower end of the telescopic plate 408; a plurality of pulling sliders 404 are arranged on the pulling slide 402; the pulling ring 401 is symmetrically arranged on both sides to form a ring; holes are symmetrically arranged on both sides of the upper end of the telescopic plate 408 to set springs 4082; a telescopic rod 4081 is arranged at the front end of the spring 4082 to be movably connected to the limit groove 4083;

[0034] In this embodiment, when the distance between the pulling rings 401 needs to be adjusted, the expansion knob 305 is rotated, and the rotation of the expansion knob 305 drives the expansion rod 303 to rotate. Since the expansion screws 304 at both ends of the expansion rod 303 are threadedly connected to the expansion slider 302, and the threads of the expansion screws 304 at both ends are rotated in opposite directions, when the expansion rod 303 rotates, the expansion sliders 302 at both ends will make relative linear motion along the expansion slide groove 306, and the pulling rings 401 fixed on the upper ends of the expansion sliders 302 will be relatively close or far away, so as to adjust the distance between the pulling rings 401 on both sides according to the needs of patients with different body shapes, so as to better adapt to different surgical situations. For example, the pulling range can be flexibly adjusted according to the size of the patient's chest, the range of the skin flap, etc.

[0035] When the pulling assembly 4 is in use, the pulling hook 403 at the lower end of the telescopic plate 408 is gently placed on the selected flap pulling point to ensure that the pulling hook 403 can firmly hook the flap. According to the range and angle requirements of the flap pulling, the position of the pulling slider 404 is adjusted on the pulling groove 402 in the middle of the pulling ring 401. A plurality of pulling sliders 404 are arranged on the pulling groove 402. The pulling sliders 404 of appropriate number and position can be selected for operation according to the specific situation. By sliding the pulling slider 404, the position of the pulling point on the circumference of the pulling ring 401 can be changed, so as to achieve pulling of flaps at different positions. After adjusting the pulling position, the pulling knob 405 at the rear end is rotated to drive the pulling screw 406 forward or backward, thereby driving the pulling plate 407 fixedly connected at the front end to move. The movement of the pulling plate 407 further drives the telescopic plate 408 and the pulling hook 403 to achieve pulling of the flap.

[0036] In this embodiment, the expansion component 3 greatly improves the applicability of the device to patients of different body shapes. Whether it is a thin patient or an obese patient, the traction ring 401 can be adjusted to a suitable position by the expansion component 3 to effectively traction the skin flap. When facing a group of patients with large body differences, the device is no longer restricted like a traditional fixed-size traction device, effectively avoiding the poor flap traction effect caused by the mismatch between the device size and the patient's body shape, so that the operation can be carried out smoothly.

[0037] The pulling slider 404 arranged on the pulling groove 402 allows pulling operations to be performed at different positions of the pulling ring 401. During the operation, the shapes and sizes of the skin flaps are different. Through multiple pulling sliders 404, appropriate pulling points can be selected according to the actual situation of the skin flap. For irregular-shaped skin flaps, pulling points can be set at different positions to achieve multi-point pulling of the skin flap, so that the skin flap can be evenly pulled open, effectively avoiding local excessive pulling or insufficient pulling, thereby better exposing the surgical field and providing convenience for doctors to perform delicate surgical operations; when the telescopic plate 408 is in use, the telescopic plate 408 can be pulled according to different skin flap conditions to make the telescopic plate 408 slide downward, thereby improving the effectiveness of traction.

[0038] Example 2

[0039] like Figure 1-4 As shown, the support assembly 1 includes a support column 101, a fixing plate 102, a fixing screw 103, a fixing knob 104, and a clamping plate 105; two fixing plates 102 are arranged at the lower end of the support column 101, and a rectangular groove is arranged at the upper end of the support column 101; a hole is provided in the center of the fixing plate 102 at the lower end to be threadedly connected with the fixing screw 103; a fixing knob 104 is arranged at the lower end of the fixing screw 103, and a clamping plate 105 is arranged at the upper end;

[0040] The lifting assembly 2 includes a coupling 201, a worm wheel 202, a gear 203, a worm 204, a lifting knob 205, and a lifting rack 206; the middle of the support column 101 is rotatably connected to the coupling 201, and one side is slidably connected to the lifting rack 206; the coupling is respectively fixedly connected to the worm wheel 202 and the gear 203; the gear 203 is meshed with the lifting rack 206; the lower end of the worm wheel 202 is provided with a worm 204 for meshing; the front end of the worm 204 penetrates the support column 101 to be provided with a lifting knob 205; the upper end of the lifting rack 206 is vertically connected to the expansion housing 301;

[0041] In this embodiment, by rotating the fixing knob 104, the fixing screw 103 moves upward, thereby driving the clamping plate 105 to move upward, and the device is fixed on the operating table;

[0042] Rotate the lifting knob 205, the knob drives the worm 204 to rotate, the worm 204 meshes with the worm wheel 202, the rotation of the worm 204 drives the worm wheel 202 to rotate, the worm wheel 202 and the gear 203 are fixedly connected to the coupling 201, so the rotation of the worm wheel 202 drives the gear 203 to rotate synchronously, when the gear 203 rotates, the rotational motion of the gear 203 will be converted into a linear lifting motion of the lifting rack 206, the upper end of the lifting rack 206 is vertically connected to the expansion housing 301, the up and down movement of the lifting rack 206 will drive the expansion component 3 and the pulling component 4 to move up and down as a whole;

[0043] In this embodiment, the doctor can accurately adjust the height of the retractor according to the specific location and depth of the surgical site, such as when treating skin flaps in different locations such as close to the axilla or inframammary fold, so that the skin flap can be retracted at an appropriate height, thereby providing a clear and accurate field of view for the surgical operation, and helping the doctor to perform the operation more delicately, such as lymph node dissection or skin flap suturing.

[0044] Since the worm wheel 202 and the worm 204 have a self-locking transmission property, after the height is adjusted, the lifting rack 206 can be kept in the corresponding position and will not be easily displaced due to external interference.

[0045] In summary, the present invention realizes flap traction through a mechanical structure, avoiding the problem of uneven force caused by the difficulty in maintaining consistency between the assistant's force and the operation direction in traditional manual traction; it can stably provide continuous and uniform traction force for the flap, ensuring that the flap is in the best exposure state; and, by rotating the expansion knob 305 to drive the expansion rod 303 to rotate, the traction rings 401 at both ends can be relatively close or far away, so that the distance between the traction rings 401 on both sides can be flexibly adjusted according to the body contours of patients with different body shapes and differences in surgical sites, ensuring that flaps of different ranges and positions can be effectively pulled, greatly improving the applicability of the device to different patient groups;

[0046] At the same time, a plurality of traction sliders 404 are arranged on the traction groove 402 in the traction component 4, and the traction sliders 404 can be pulled to slide on the traction groove 402 according to the needs of the operation to realize multi-angle and multi-directional traction; and the telescopic plate 408 enables the position and range of the traction point to be further fine-tuned during the traction process, so as to meet various complex and changeable scenarios during the operation, cope with the traction needs of flaps of different sizes and shapes, and change the traction strategy at any time as needed during the operation.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. An adjustable flap retractor for intraoperative use, characterized in that: Including: support assembly, lifting assembly, expansion assembly, pulling assembly; A lifting assembly is arranged on the upper end of the support assembly; An expansion component is arranged at the rear end of the lifting component; a pulling component is arranged at the upper end of the expansion component; The expansion component includes an expansion shell, an expansion slider, an expansion rod, an expansion screw, an expansion knob, and an expansion slot; the front end of the expansion shell is vertically connected to the lifting component, a slot is opened inside the expansion shell to rotatably connect the expansion rod, and an expansion slot is opened on the top; the rear end of the expansion rod penetrates the expansion shell to set an expansion knob, and expansion screws are symmetrically set at both ends of the expansion rod to be threadedly connected to the expansion slider; the upper end of the expansion slider is fixedly connected to the retraction ring.

2. The adjustable intraoperative flap retractor according to claim 1, characterized in that: The expansion screws at both ends of the expansion rod have the same thread pitch and opposite thread rotation directions.

3. The adjustable intraoperative flap retractor according to claim 1, characterized in that: The support assembly includes a support column, a fixing plate, a fixing screw, a fixing knob, and a clamping plate; two fixing plates are arranged at the lower end of the support column, and a rectangular groove is arranged at the upper end of the support column; a hole is opened in the center of the fixing plate at the lower end to thread the fixing screw; a fixing knob is arranged at the lower end of the fixing screw, and a clamping plate is arranged at the upper end.

4. The adjustable intraoperative flap retractor according to claim 1, characterized in that: The lifting assembly includes a coupling, a worm wheel, a gear, a worm, a lifting knob, and a lifting rack; the middle of the support column is rotatably connected to the coupling, and one side is slidably connected to the lifting rack; the worm wheel and the gear are fixedly connected to the coupling shaft respectively; the gear meshes with the lifting rack; the lower end of the worm wheel is provided with a worm meshing; the front end of the worm penetrates the support column to set the lifting knob; the upper end of the lifting rack is vertically connected to the expanded shell.

5. The adjustable intraoperative flap retractor according to claim 1, characterized in that: The pulling assembly includes a pulling ring, a pulling slot, a pulling hook, a pulling slider, a pulling knob, a pulling screw, a pulling plate, a telescopic plate, and a limiting slot; the front end of the pulling ring is fixedly connected to the expanded slider, and a pulling slot is provided in the middle to be slidably connected to the pulling slider; the pulling slider; a hole is provided in the center of the pulling slider to be threadedly connected to the pulling screw; a pulling knob is provided at the rear end of the pulling screw, and the front end is fixedly connected to the pulling plate; a slot is provided at the lower end of the pulling plate, and a plurality of limiting slots are provided in an array at both ends of the slot to be slidably connected to the telescopic plate; a pulling hook is provided at the lower end of the telescopic plate.

6. The adjustable intraoperative flap retractor according to claim 5, characterized in that: A plurality of pulling sliding blocks are arranged on the pulling slide groove.

7. The adjustable intraoperative flap retractor according to claim 5, characterized in that: The pulling ring is symmetrically arranged on both sides to form a circular ring.

8. The adjustable intraoperative flap retractor according to claim 5, characterized in that: Holes are symmetrically provided on both sides of the upper end of the telescopic plate to arrange springs; and a telescopic rod movable connection limit groove is provided at the front end of the spring.

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