Surgical retractor

Abstract

The invention discloses a surgical retractor, and belongs to the technical field of medical instruments, the surgical retractor comprises two fixing plates, two curved bars, two rotating rods, two supporting rods, two first magnetic blocks and two retractor assemblies, the two first magnetic blocks are fixedly connected with the corresponding curved bars respectively, and the outer wall of each curved bar is movably arranged on the corresponding retractor assembly; the drag hook assembly comprises a connecting sleeve, a take-up module, a wire, a puncture needle, a plastic bending piece, a limiting block and a push rod, the connecting sleeve is fixedly connected with the curved bar, the take-up module is fixedly connected with the connecting sleeve, one end of the wire is connected with the take-up module, the puncture needle is connected with the other end of the wire, and the limiting block is fixedly connected with the puncture needle and located on the inner side wall of the puncture needle. The push rod is movably connected with the connecting sleeve in an inserted mode, and the plastic bending piece is fixedly connected with the push rod, so that the device can be suitable for different surgical operations, physical strength of doctors is greatly relieved, stability in the traction process is improved, and smooth operation is facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and provides a surgical retractor. Background Art

[0002] With the comprehensive progress and innovative development of various disciplines in the medical field, surgical treatment has been maturely applied in clinical diagnosis and treatment, effectively improving the survival rate and quality of life of patients. Currently, the surgical treatment methods routinely carried out clinically include open surgery and minimally invasive surgery. Whether it is open or minimally invasive surgery, the full exposure of the surgical field is an important prerequisite for ensuring the safe progress of surgical operations. Therefore, a surgical retractor that assists in exposing the surgical field has also become one of the indispensable medical devices for surgery.

[0003] However, when using the existing surgical retractors, it is necessary to rely on the surgeon to pull and traction forcefully outward for a long time, which greatly consumes the doctor's physical strength. And in different surgical operations, due to different exposures of the surgical field, the pulling angles, directions, and positions also change accordingly, which easily leads to surgical fatigue of the surgeon, resulting in unstable pulling during the operation and affecting the smooth progress of the operation. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a surgical retractor, aiming to solve the technical problem that in different surgical operations, due to different exposures of the surgical field, the pulling angles, directions, and positions also change accordingly, which easily leads to surgical fatigue of the surgeon, resulting in unstable pulling during the operation and affecting the smooth progress of the operation.

[0005] To achieve the above object, a surgical retractor adopted by the present invention includes two fixing plates, two curved rods, two rotating rods, two support rods, two first magnetic attraction blocks, and two groups of retractor assemblies. The two support rods are respectively fixedly connected to the corresponding fixing plates, the two rotating rods are respectively movably connected to the corresponding support rods, each curved rod is respectively fixedly connected to the corresponding rotating rod, the two first magnetic attraction blocks are respectively fixedly connected to the corresponding curved rods, and the outer wall of each curved rod is movably arranged in the retractor assembly;

[0006] The retractor assembly includes a connecting sleeve, a wire winding module, a wire, a puncture needle, a plastic bending member, a limiting block, and a push rod. The connecting sleeve is fixedly connected to the curved rod and sleeved on the outer wall of the curved rod. The wire winding module is fixedly connected to the connecting sleeve. One end of the wire is connected to the wire winding module, the other end of the wire is connected to the puncture needle. The limiting block is fixedly connected to the puncture needle and is located on the inner side wall of the puncture needle. The puncture needle has a cavity and a through hole. The push rod is movably inserted into the connecting sleeve and is located in the cavity. The plastic bending member is fixedly connected to the push rod and movably penetrates through the through hole.

[0007] Further, the wire winding module includes a servo motor and a wire winding roller. The servo motor is fixedly connected to the connecting sleeve and is located on the outer side wall of the connecting sleeve. The wire winding roller is connected to the output end of the servo motor. One end of the wire is fixedly connected to the wire winding roller and is wound around the outside of the wire winding roller.

[0008] Further, the surgical retractor further includes a moving support assembly, and the moving support assembly is respectively connected to the two fixing plates.

[0009] Further, the moving support assembly includes two moving brackets, two connecting rods, a plugging sleeve, a plugging block, a second magnetic attraction block, a third magnetic attraction block, two moving bases and two electric telescopic rods. The two moving brackets are respectively fixedly connected to the corresponding fixing plates and are respectively located below the fixing plates. The two moving bases are respectively movably connected to the corresponding moving brackets and are respectively located below the moving brackets. Each moving base is internally provided with an electric telescopic rod, and the output ends of each electric telescopic rod are respectively fixedly connected to the corresponding moving brackets. The two connecting rods are respectively fixedly connected to the corresponding moving brackets and are respectively located on the inner side walls of the moving brackets. The plugging sleeve is fixedly connected to one of the connecting rods. The plugging block is fixedly connected to the other connecting rod. The second magnetic attraction block is fixedly connected to the plugging sleeve. The third magnetic attraction block is fixedly connected to the plugging block, and the second magnetic attraction block and the third magnetic attraction block are magnetically attracted to each other.

[0010] Further, the surgical retractor further includes two groups of limiting assemblies. The two groups of limiting assemblies are respectively connected to the corresponding fixing plates and are respectively located below the fixing plates.

[0011] Further, the limiting assembly includes a connecting bolt, a U-shaped frame, a spring, a pull rod and a clamping plate. The U-shaped frame is located below the fixing plate. The connecting bolt movably penetrates through the fixing plate and is threadedly connected to the U-shaped frame. The pull rod is movably connected to the U-shaped frame and movably penetrates through the U-shaped frame. The clamping plate is fixedly connected to the pull rod and is located inside the U-shaped frame. The two ends of the spring are respectively fixedly connected to the U-shaped frame and the clamping plate and are sleeved on the outside of the pull rod.

[0012] Further, the limiting assembly further includes a guiding arc block. The guiding arc block is fixedly connected to the clamping plate and is located on the outer side wall of the clamping plate.

[0013] Further, the limiting assembly further includes a protective cover. The protective cover is movably connected to the U-shaped frame and is located below the U-shaped frame.

[0014] The beneficial effects of the present invention are:

[0015] Place the two curved rods above the operating table and connect them into a C shape through the two first magnetic attraction blocks. The outer walls of the two curved rods are both provided with the hook assemblies. The two curved rods can rotate simultaneously and independently. The two curved rods form a spherical range of motion, which can meet different surgical angles and traction forces, eliminating the need for surgeons to apply traction. When puncturing a patient, first push the push rod to drive the plastic bending member to move within the puncture needle, and penetrate through the through hole to drive the puncture needle to puncture. When the puncture needle enters the surgical cavity area, the front end of the plastic bending member will not cause harm to the patient's surgical cavity. Then, retract the plastic bending member into the cavity of the puncture needle. At the same time, the plastic bending member is located above the limit block, and then apply force to squeeze the push rod. The push rod drives the plastic bending member to bend, and the plastic bending member will cause the front end of the puncture needle to bend, making the front end of the puncture needle form a hook shape after entering the surgical cavity area. At this time, fit the head of the push rod into the puncture needle, and the push rod is fixed within the puncture needle. The puncture needle can always be in a hook shape. Then, start the wire winding module, and the wire winding module controls the winding and unwinding of the wire. No secondary harm will be caused to the patient's body during the puncture process. Through the above method, it is possible to be applicable to different surgical operations, greatly reducing the physical strength of doctors, increasing the stability during the traction process, and facilitating the smooth progress of the operation.

[0016] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail with preference in conjunction with the drawings, where:

[0018] Figure 1 is a schematic structural diagram of the surgical retractor of the present invention;

[0019] Figure 2 is a front view of the structure of the surgical retractor of the present invention;

[0020] Figure 3 is a side view of the structure of the surgical retractor of the present invention;

[0021] Figure 4 For the present invention Figure 3 A-A line structural sectional view;

[0022] Figure 5 For the present invention Figure 4 Local enlarged view of part B;

[0023] Figure 6 Structural schematic diagram of the retractor assembly of the present invention;

[0024] Figure 7 Internal structural schematic diagram of the puncture needle of the present invention in the use state.

[0025] Reference numerals: 100 is the retractor assembly, 101 is the fixing plate, 102 is the curved rod, 103 is the rotating rod, 104 is the first magnetic block, 105 is the connecting sleeve, 106 is the wire, 107 is the puncture needle, 108 is the plastic bending part, 109 is the limiting block, 110 is the push rod, 111 is the cavity, 112 is the through hole, 113 is the support rod, 114 is the servo motor, 115 is the wire winding roller, 116 is the connecting bolt, 117 is the U-shaped frame, 118 is the spring, 119 is the pull rod, 120 is the clamping plate, 121 is the guiding arc block, 122 is the protective cover, 123 is the moving bracket, 124 is the connecting rod, 125 is the plugging sleeve, 126 is the plugging block, 127 is the second magnetic block, 128 is the third magnetic block, 129 - moving base, 130 - electric telescopic rod. Detailed implementation manners

[0026] The present invention will be further described below in conjunction with the detailed implementation manners. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] As Figures 1 to 7 shown, the present invention provides a surgical retractor, including two fixing plates 101, two curved rods 102, two rotating rods 103, two support rods 113, two first magnetic blocks 104 and two sets of retractor assemblies 100. The two support rods 113 are respectively fixedly connected to the corresponding fixing plates 101, the two rotating rods 103 are respectively movably connected to the corresponding support rods 113, each curved rod 102 is respectively fixedly connected to the corresponding rotating rod 103, the two first magnetic blocks 104 are respectively fixedly connected to the corresponding curved rods 102, and the outer wall of each curved rod 102 is movably arranged in the retractor assembly 100;

[0028] The retractor assembly 100 includes a connecting sleeve 105, a wire winding module, a wire 106, a puncture needle 107, a plastic bending member 108, a limiting block 109 and a push rod 110. The connecting sleeve 105 is fixedly connected to the curved rod 102 and sleeved on the outer wall of the curved rod 102. The wire winding module is fixedly connected to the connecting sleeve 105. One end of the wire 106 is connected to the wire winding module, and the other end of the wire 106 is connected to the puncture needle 107. The limiting block 109 is fixedly connected to the puncture needle 107 and is located on the inner side wall of the puncture needle 107. The puncture needle 107 has a cavity 111 and a through hole 112. The push rod 110 is movably inserted into the connecting sleeve 105 and is located in the cavity 111. The plastic bending member 108 is fixedly connected to the push rod 110 and movably penetrates through the through hole 112.

[0029] In this embodiment, the two curved rods 102 are located above the operating table and are connected into a C shape by the two first magnetic attraction blocks 104. The retractor assemblies 100 are arranged on the outer walls of the two curved rods 102. The two curved rods 102 can rotate simultaneously and independently. The two curved rods 102 form a spherical range of motion, which can meet different surgical angles and traction forces, eliminating the need for the surgeon to apply traction. When puncturing the patient, first push the push rod 110 to drive the plastic bending member 108 to move within the puncture needle 107 and penetrate through the through hole 112 to drive the puncture needle 107 to puncture. The puncture needle 107 enters the surgical cavity area, and the front end of the plastic bending member 108 will not cause harm to the patient's surgical cavity. Then, retract the plastic bending member 108 into the cavity 111 of the puncture needle 107. At the same time, the plastic bending member 108 is located above the limiting block 109. Then, apply force to squeeze the push rod 110. The push rod 110 drives the plastic bending member 108 to bend. The plastic bending member 108 will cause the front end of the puncture needle 107 to bend, so that the front end of the puncture needle 107 forms a hook shape after entering the surgical cavity area. At this time, fit the head of the push rod 110 into the puncture needle 107, and the push rod 110 is fixed within the puncture needle 107. The puncture needle 107 can always be in a hook shape. Then, start the wire winding module. The wire winding module controls the winding and unwinding of the wire 106. No secondary harm will be caused to the patient's body during the puncture process. Through the above method, it is realized that it can be applicable to different surgical operations, greatly reducing the physical strength of the doctor, increasing the stability during the traction process, and facilitating the smooth progress of the operation.

[0030] Further, the wire winding module includes a servo motor 114 and a wire winding roller 115. The servo motor 114 is fixedly connected to the connecting sleeve 105 and is located on the outer side wall of the connecting sleeve 105. The wire winding roller 115 is connected to the output end of the servo motor 114. One end of the wire 106 is fixedly connected to the wire winding roller 115 and is wound around the outside of the wire winding roller 115.

[0031] In this embodiment, the servo motor 114 is fixed on the connecting sleeve 105. By starting the servo motor 114, the output end of the servo motor 114 drives the wire winding roller 115 to rotate, and the wire winding roller 115 winds and unwinds the wire 106.

[0032] Further, the surgical retractor further includes a moving support assembly, and the moving support assembly is respectively connected to the two fixing plates 101.

[0033] In this embodiment, by arranging the moving support assembly below the fixing plate 101, the moving support assembly is used to conveniently move the curved rod 102 and the retractor assembly 100, and the position can be adjusted according to requirements, which is convenient for performing surgery.

[0034] Further, the moving support assembly includes two moving brackets 123, two connecting rods 124, a plugging sleeve 125, a plugging block 126, a second magnetic block 127, a third magnetic block 128, two moving bases 129 and two electric telescopic rods 130. The two moving brackets 123 are respectively fixedly connected to the corresponding fixing plates 101 and are respectively located below the fixing plates 101. The two moving bases 129 are respectively movably connected to the corresponding moving brackets 123 and are respectively located below the moving brackets 123. Each moving base 129 is provided with an electric telescopic rod 130, and the output end of each electric telescopic rod 130 is fixedly connected to the corresponding moving bracket 123. The two connecting rods 124 are respectively fixedly connected to the corresponding moving brackets 123 and are respectively located on the inner side walls of the moving brackets 123. The plugging sleeve 125 is fixedly connected to one of the connecting rods 124, the plugging block 126 is fixedly connected to the other connecting rod 124, the second magnetic block 127 is fixedly connected to the plugging sleeve 125, the third magnetic block 128 is fixedly connected to the plugging block 126, and the second magnetic block 127 and the third magnetic block 128 are magnetically attracted to each other.

[0035] In this embodiment, when it is necessary to adjust the positions of the curved rod 102 and the hook assembly 100, by pulling the handle outside the moving bracket 123, the moving base 129 moves on the ground, causing the moving bracket 123 to move outside the operating bed. The moving bracket 123 drives the U-shaped frame 117 to slide on the side of the bed, changing the positions of the curved rod 102 and the hook assembly 100. When it is necessary to connect the two curved rods 102, the two moving brackets 123 are symmetrically located on the side of the operating bed. The insertion block 126 is inserted into the insertion sleeve 125, and the insertion block 126 and the insertion sleeve 125 are fixed by the magnetic attraction between the second magnetic block 127 and the third magnetic block 128. The two connecting rods 124 are connected, and at the same time, the two curved rods 102 are connected by the first magnetic block 104, so as to stably fix the two curved rods 102 above the operating bed. When using the two curved rods 102 separately, force is applied to separate the second magnetic block 127 and the third magnetic block 128, and at the same time, the two first magnetic blocks 104 are separated. At this time, the two moving brackets 123 can drive the curved rods 102 to move respectively. In addition, by setting the moving base 129 and the electric telescopic rod 130, the height of the moving bracket 123 can be adjusted, which is convenient for the device to fit operating beds of different heights.

[0036] Further, the surgical retractor further includes two sets of limiting components, and the two sets of limiting components are respectively connected to the corresponding fixing plates 101 and are respectively located below the fixing plates 101.

[0037] In this embodiment, by arranging the limiting components below the two fixing plates 101, the limiting components are used to conveniently fix the curved rod 102 on the operating bed, so that the hook assembly 100 is located above the operating bed.

[0038] Further, the limiting component includes a connecting bolt 116, a U-shaped frame 117, a spring 118, a pull rod 119 and a clamping plate 120. The U-shaped frame 117 is located below the fixing plate 101. The connecting bolt 116 movably penetrates through the fixing plate 101 and is threadedly connected to the U-shaped frame 117. The pull rod 119 is movably connected to the U-shaped frame 117 and movably penetrates through the U-shaped frame 117. The clamping plate 120 is fixedly connected to the pull rod 119 and is located inside the U-shaped frame 117. The two ends of the spring 118 are respectively fixedly connected to the U-shaped frame 117 and the clamping plate 120 and are sleeved outside the pull rod 119.

[0039] In this embodiment, the fixed plate 101 is fixed to the U-shaped frame 117 through the connecting bolt 116. When fixing the curved rod 102 on the operating table, by inserting the U-shaped frame 117 towards the side of the operating table and simultaneously pulling down the pull rod 119, the pull rod 119 drives the clamping plate 120 to move downward within the U-shaped frame 117. The spring 118 is squeezed by the clamping plate 120 and compressed within the clamping plate 120 and the U-shaped frame 117. Then, the clamping plate 120 is positioned below the side of the bed. Immediately release the pull rod 119, and use the acting force of the spring 118 to drive the clamping plate 120 to hold against the lower part of the side of the bed, so that the U-shaped frame 117 is fixed to the side of the operating table, thereby fixing the curved rod 102 above the operating table.

[0040] Furthermore, the limiting component further includes a guiding arc block 121, which is fixedly connected to the clamping plate 120 and is located on the outer side wall of the clamping plate 120.

[0041] In this embodiment, the guiding arc block 121 has an arc surface. The guiding arc block 121 is arranged on the outer side wall of the clamping plate 120. When fixing the limiting frame to the side of the bed, the clamping plate 120 can be conveniently located below the side of the bed through the guiding arc block 121.

[0042] Furthermore, the limiting component further includes a protective cover 122, which is movably connected to the U-shaped frame 117 and is located below the U-shaped frame 117.

[0043] In this embodiment, by arranging the protective cover 122 below the U-shaped frame 117, the protective cover 122 is detachable below the U-shaped frame 117, and the pull rod 119 is covered and protected by the protective cover 122 to avoid being exposed and accidentally touched.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A surgical retractor, characterized in that it includes two fixing plates, two curved rods, two rotating rods, two supporting rods, two first magnetic attraction blocks and two sets of retractor components. The two supporting rods are respectively fixedly connected to the corresponding fixing plates, the two rotating rods are respectively movably connected to the corresponding supporting rods, each curved rod is respectively fixedly connected to the corresponding rotating rod, the two first magnetic attraction blocks are respectively fixedly connected to the corresponding curved rods, and the outer wall of each curved rod is movably arranged in the retractor component; The retractor component includes a connecting sleeve, a wire winding module, a wire, a puncture needle, a plastic bending piece, a limiting block and a push rod. The connecting sleeve is fixedly connected to the curved rod and sleeved on the outer wall of the curved rod. The wire winding module is fixedly connected to the connecting sleeve. One end of the wire is connected to the wire winding module, the other end of the wire is connected to the puncture needle. The limiting block is fixedly connected to the puncture needle and located on the inner side wall of the puncture needle. The puncture needle has a cavity and a through hole. The push rod is movably inserted into the connecting sleeve and located in the cavity. The plastic bending piece is fixedly connected to the push rod and movably penetrates through the through hole.

2. The surgical retractor according to claim 1, characterized in that the wire winding module includes a servo motor and a wire winding roller. The servo motor is fixedly connected to the connecting sleeve and located on the outer side wall of the connecting sleeve. The wire winding roller is connected to the output end of the servo motor. One end of the wire is fixedly connected to the wire winding roller and wound around the outside of the wire winding roller.

3. The surgical retractor according to claim 1, characterized in that the surgical retractor further includes a moving support component, and the moving support component is respectively connected to the two fixing plates.

4. The surgical retractor according to claim 3, characterized in that the moving support component includes two moving brackets, two connecting rods, a plugging sleeve, a plugging block, a second magnetic attraction block, a third magnetic attraction block, two moving bases and two electric telescopic rods. The two moving brackets are respectively fixedly connected to the corresponding fixing plates and located below the fixing plates respectively. The two moving bases are respectively movably connected to the corresponding moving brackets and located below the moving brackets respectively. Each moving base is internally provided with an electric telescopic rod, and the output end of each electric telescopic rod is respectively fixedly connected to the corresponding moving bracket. The two connecting rods are respectively fixedly connected to the corresponding moving brackets and located on the inner side walls of the moving brackets respectively. The plugging sleeve is fixedly connected to one of the connecting rods, the plugging block is fixedly connected to the other connecting rod, the second magnetic attraction block is fixedly connected to the plugging sleeve, the third magnetic attraction block is fixedly connected to the plugging block, and the second magnetic attraction block and the third magnetic attraction block are magnetically attracted to each other.

5. The surgical retractor according to claim 1, characterized in that the surgical retractor further includes two sets of limiting components, and the two sets of limiting components are respectively connected to the corresponding fixing plates and located below the fixing plates respectively.

6. The surgical retractor according to claim 5, characterized in that The limiting component includes a connecting bolt, a U-shaped frame, a spring, a pull rod and a clamping plate. The U-shaped frame is located below the fixing plate. The connecting bolt movably penetrates through the fixing plate and is threadedly connected to the U-shaped frame. The pull rod is movably connected to the U-shaped frame and movably penetrates through the U-shaped frame. The clamping plate is fixedly connected to the pull rod and is located inside the U-shaped frame. Two ends of the spring are respectively fixedly connected to the U-shaped frame and the clamping plate, and the spring is sleeved outside the pull rod.

7. The surgical retractor according to claim 6, wherein the limiting component further includes a guiding arc block. The guiding arc block is fixedly connected to the clamping plate and is located on an outer side wall of the clamping plate.

8. The surgical retractor according to claim 7, wherein the limiting component further includes a protective cover. The protective cover is movably connected to the U-shaped frame and is located below the U-shaped frame.

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