Orthopedic spinal operation tissue distraction forceps

Abstract

The utility model discloses a pair of orthopedic spinal operation tissue distraction forceps in the technical field of medical equipment, which comprises a fixing mechanism, a distraction adjusting mechanism is mounted at the upper end of the fixing mechanism, distraction mechanisms are mounted on the surface of the distraction adjusting mechanism, and the two groups of distraction mechanisms are symmetrically distributed; according to the scheme, through the structural arrangement of the fixing mechanism, the distraction adjusting mechanism and the distraction mechanisms, after the device is installed on one side of a sickbed through the fixing mechanism, the two distraction mechanisms are controlled to operate synchronously through the distraction adjusting mechanism, and after the two distraction mechanisms are inserted into a surgical incision of a patient, the surgical incision can be distraction towards the two sides; according to the surgical incision distraction device, the area in a surgical incision is exposed, operation of medical staff is facilitated, and when the fixing mechanism is fixed, the mounting height, position and distraction direction of the distraction mechanism can be adaptively adjusted, so that the surgical incision distraction device is adaptive to surgical incisions of different shapes and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a tissue spreading forceps for orthopedic spine surgery. Background Art

[0002] Spinal surgery is a complex orthopedic procedure used to treat spinal deformities, spinal fractures, spinal tumors and other diseases. During the operation, surgeons need to open the surrounding soft tissues and ligaments to clearly observe and handle the intervertebral disc, vertebral body or neural structure. This requires the use of tissue openers to provide sufficient operating space to ensure the safety and effectiveness of the operation.

[0003] After searching, Chinese patent No. CN202223281893.0 discloses a surgical tissue spreader that does not affect the field of view, including: a base, which is the mounting structure of the spreader, which is U-shaped, and the upper end of the base is rotatably connected to a threaded rod, and the other end of the threaded rod is rotatably connected to one end of the base; a clamping block, which is movably connected to the inside of the base, and the clamping block is threadedly connected to the threaded rod; a rubber pad, which is installed on one side of the clamping block; a servo electric cylinder, which is connected to the left end of the base; an installation box, which is arranged at the output end of the servo electric cylinder; a servo motor, which is installed at the front end of the installation box; a rack, which is movably connected to the inside of the installation box.

[0004] The beneficial effects of the above device are as follows: by setting a base, a servo electric cylinder, a servo motor and a rack, the above two sets of spreader assemblies are respectively installed on one side of the operating table, and the servo electric cylinder can drive the servo motor and its connecting assembly to move downward, and the servo motor drives the gear at its output end to rotate and drive the rack to move left and right inside the installation box, and the two sets of spreader assemblies are used to separately spread one side of the opening of the injured person, thereby achieving the goal of not affecting the field of vision of the surgeon and the normal use of the surgical treatment instruments.

[0005] During use, the above device can only open human tissue from a single direction, and the usage is relatively simple. During spinal surgery, the directions and shapes of surgical incisions are different, which requires medical staff to open human tissue from different directions. Therefore, during use, the opening device needs to be dynamically adjusted. To this end, we propose an orthopedic spinal surgery tissue opening forceps. Utility Model Content

[0006] The utility model aims to provide a tissue distraction forceps for orthopedic spine surgery to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tissue distraction forceps for orthopedic spinal surgery, comprising a fixing mechanism, a distraction adjustment mechanism is installed on the upper end of the fixing mechanism, a distraction mechanism is installed on the surface of the distraction adjustment mechanism, the distraction mechanism is arranged in two groups and is symmetrically distributed, the distraction adjustment mechanism comprises a slide rail frame installed on the fixing mechanism, both end surfaces of the slide rail frame are fixedly connected with a mounting seat A, a screw rod is inserted between the two groups of the mounting seats A, two groups of slide tables are installed on the surface of the screw rod, the two groups of slide tables slide in opposite directions on the surface of the slide rail frame, the two groups of distraction mechanisms are adaptively installed on the two groups of slide tables, the surface of the slide rail frame is fixedly connected with a mounting seat B, a damping shaft is inserted inside the mounting seat B, one end of the damping shaft is fixedly connected with a crank, the other end of the damping shaft is fixedly connected with a control bevel gear, the surface of the screw rod is fixedly connected with a driving bevel gear, and the control bevel gear and the driving bevel gear are meshingly connected.

[0008] Preferably, the fixing mechanism includes a fixing rod installed on one side of the bed, the fixing rod is arranged in an "L" shape and is hollow inside, a transverse sliding rod is inserted inside the horizontal end of the fixing rod, one end of the transverse sliding rod is fixedly connected to a fixing frame, the fixing frame is arranged in an "L" shape, the lower end surface of the fixing frame is fixedly connected to a base plate, the upper end surface of the fixing frame is arranged with a threaded hole and a threaded rod is inserted in the threaded hole, and a splint is sleeved on the lower end surface of the threaded rod.

[0009] Preferably, a threaded hole is provided on the surface of the opening at the horizontal end of the fixing rod and a limit bolt A is inserted in the threaded hole, a vertical sliding rod is inserted inside the vertical end of the fixing rod, a threaded hole is also provided on the surface of the opening at the vertical end of the fixing rod and a limit bolt A is inserted therein, the expansion adjustment mechanism includes a slide rail frame installed on the upper end surface of the vertical sliding rod, a damping sleeve is fixedly connected to the lower end surface of the slide rail frame, and the damping sleeve is adaptively sleeved on the surface of the vertical sliding rod.

[0010] Preferably, the spreading mechanism includes a sleeve fixedly connected to the surface of the slide, an extension rod is inserted into the interior of the sleeve, a threaded hole is provided on the surface of the sleeve and a limiting bolt B is inserted into the threaded hole, a T-rod is inserted into the front end of the extension rod, a push plate is installed on the lower end surface of the T-rod, a clamping sleeve is fixedly connected to the back side of the push plate, and the clamping sleeve is adaptably sleeved on the surface of the T-rod.

[0011] Preferably, the other end of the T-shaped rod is fixedly connected to a control handle, and the surface of the extension rod is provided with a threaded hole and a limiting bolt B is inserted into the threaded hole.

[0012] Preferably, the push plate is configured as a "V"-shaped structure, a convex strip is fixedly connected to the lower end surface of the push plate, and the cross-section of the push plate and the convex strip is configured as an "L"-shaped structure.

[0013] Preferably, a slide groove is provided inside the lower end of the T-shaped rod, a slide plate is inserted inside the slide groove, a control rod is fixedly connected to the lower end surface of the slide plate, a pressure plate is fixedly connected to the lower end surface of the control rod, the pressure plate is located on one side of the push plate and above the convex strip, a spring is fixedly connected to the inner wall of the slide groove, and the other end of the spring is fixedly connected to the upper end surface of the slide plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This solution uses the structural setting of the fixing mechanism, the expansion adjustment mechanism, and the expansion mechanism, so that after the fixing mechanism installs the device on one side of the bed, the expansion adjustment mechanism controls the two groups of expansion mechanisms to operate synchronously, so that after the two groups of expansion mechanisms are inserted into the surgical incision of the patient, the surgical incision can be expanded to both sides to expose the area inside the surgical incision, which is convenient for the operation of medical staff. When the fixing mechanism is fixed, the installation height, position and expansion direction of the expansion mechanism can be adaptively adjusted, so that the device is suitable for surgical incisions of different shapes and sizes;

[0016] 2. This solution uses the structural setting of the expansion mechanism so that when the two groups of expansion mechanisms perform the expansion operation on the surgical incision, the surgical incision can be turned outward or expanded horizontally to both sides, thereby meeting different expansion needs. In the expansion process, the incision cross section can be clamped and fixed to prevent human tissue from slipping during the expansion process. In the clamping process, the surgical incision cross section is used to contact the surface of the push plate, and the surgical incision can be effectively stopped by further clamping up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a rear view schematic diagram of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the opening mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the propping mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the push plate structure of the utility model.

[0022] In the figure: 1. fixing mechanism; 101. fixing rod; 102. horizontal slide rod; 103. fixing frame; 104. bottom plate; 105. threaded rod; 106. clamping plate; 107. limit bolt A; 108. vertical slide rod; 2. expansion adjustment mechanism; 201. slide rail frame; 202. damping sleeve; 203. mounting seat A; 204. screw rod; 205. mounting seat B; 206. damping shaft; 207 , control bevel gear; 208, drive bevel gear; 209, slide; 210, crank; 3, expansion mechanism; 301, sleeve; 302, extension rod; 303, limit bolt B; 304, T-bar; 305, push plate; 306, control handle; 307, sleeve; 308, slide groove; 309, slide plate; 310, control rod; 311, pressure plate; 312, spring; 313, convex strip. DETAILED DESCRIPTION

[0023] Example

[0024] See also Figure 1-5 , the utility model provides a technical solution:

[0025] A tissue distraction forceps for orthopedic spine surgery, wherein the upper end of a fixing mechanism 1 is fixedly connected to a distraction adjustment mechanism 2, and two sets of independent distraction mechanisms 3 are installed on the distraction adjustment mechanism 2. After the device is installed on one side of a bed through the fixing mechanism 1, the two sets of distraction mechanisms 3 are synchronously controlled through the distraction adjustment mechanism 2, so that the two sets of distraction mechanisms 3 can further distract the human tissue incision on the patient's skin, making it convenient for medical staff to perform surgical operations.

[0026] The fixing mechanism 1 includes a fixing rod 101 installed on one side of the bed. The fixing rod 101 is set to be "L" shaped and hollow inside. A horizontal sliding rod 102 is inserted inside the horizontal end of the fixing rod 101. One end of the horizontal sliding rod 102 is fixedly connected to a fixing frame 103, which is set to be "L" shaped, and the lower end surface of the fixing frame 103 is fixedly connected to a bottom plate 104. The upper end surface of the fixing frame 103 is provided with a threaded hole and a threaded rod 105 is inserted in the threaded hole. The lower end surface of the threaded rod 105 is sleeved with a clamping plate 106. Further, when the device needs to be installed, the bottom plate 104 is pressed against the lower surface of the bed board of the bed, and the threaded rod 105 is further rotated on the fixing frame 103 to push the clamping plate 106 to slide and change the relative distance between the clamping plate 106 and the bottom plate 104, so that the bottom plate 104 and the clamping plate 106 can clamp and fix the bed board, so that the device can be installed on one side of the bed, which is convenient for subsequent operations.

[0027] And the transverse slide bar 102 can slide in the fixed rod 101, and the distance of the device relative to the hospital bed can be further adjusted, so as to facilitate the tissue expansion of different surgical incisions on the patient's body. The surface of the horizontal end opening of the fixed rod 101 is provided with a threaded hole and a limit bolt A107 is inserted in the threaded hole. The limit bolt A107 penetrates the threaded hole and contacts the surface of the transverse slide bar 102, so that the adjustment and fixation of the transverse slide bar 102 can be achieved. At the same time, a vertical slide bar 108 is inserted inside the vertical end of the fixed rod 101. By sliding the vertical slide bar 108 in the fixed rod 101, the height of the device relative to the hospital bed can be further changed, thereby improving the applicability of the device. The surface of the vertical end opening of the fixed rod 101 is also provided with a threaded hole and a limit bolt A107 is inserted. The adjustment of the vertical slide bar 108 can be limited and fixed by the limit bolt A107. Improve the stability and safety of the device when it is used.

[0028] The expansion adjustment mechanism 2 includes a slide rail frame 201 installed on the upper end surface of the vertical slide bar 108, and a damping sleeve 202 is fixedly connected to the lower end surface of the slide rail frame 201, and the damping sleeve 202 is adaptively sleeved on the surface of the vertical slide bar 108. The expansion adjustment mechanism 2 can be further rotated above the fixing mechanism 1 to adjust the angles of the expansion adjustment mechanism 2 and the expansion mechanism 3, so that the device can expand surgical incisions of different shapes from different directions.

[0029] The surfaces of both ends of the slide rail frame 201 are fixedly connected with mounting seats A203, and a screw rod 204 is inserted between the two sets of mounting seats A203. Two sets of slides 209 are installed on the surface of the screw rod 204. When the screw rod 204 rotates inside the slide 209, it will control the slide 209 to slide linearly on the surface of the slide rail frame 201, thereby realizing the position adjustment of the slide 209. In addition, the two sets of slides 209 slide in opposite directions on the surface of the slide rail frame 201, and the spacing between the two sets of slides 209 can be further adjusted. The two sets of spreading mechanisms 3 are adaptively installed on the two sets of slides 209, and the spacing between the two sets of spreading mechanisms 3 can be further adjusted, so that the two sets of spreading mechanisms 3 can perform spreading operations with different spacing sizes on the surgical incision. The surface of the slide rail frame 201 is fixedly connected with a mounting seat B205, and a damping shaft 206 is inserted inside the mounting seat B205. One end of the damping shaft 206 is fixedly connected with a crank 210, and the other end of the damping shaft 206 is fixedly connected with a control bevel gear 207. The surface of the screw rod 204 is fixedly connected with a driving bevel gear 208, and the control bevel gear 207 and the driving bevel gear 208 are meshed and connected. Further, when the two sets of opening mechanisms 3 need to adjust the opening size of the surgical incision, the manual control crank 210 is raised to rotate, and the damping shaft 206 connected to the control bevel gear 207 is further driven to rotate, and the control bevel gear 207 is meshed with the drive bevel gear 208 to drive the screw rod 204 to rotate, so as to achieve the spacing adjustment of the two sets of slides 209. In addition, the damping shaft 206 has a damping effect when rotating in the mounting seat B205, which can prevent the damping shaft 206 from accidentally touching and causing the two sets of slides 209 to shift, further causing the opening mechanism 3 to misoperate to open the surgical incision, resulting in accidental injury to the patient.

[0030] The opening mechanism 3 includes a sleeve 301 fixedly connected to the surface of the slide 209, an extension rod 302 is inserted inside the sleeve 301, and a threaded hole is provided on the surface of the sleeve 301, and a limit bolt B303 is inserted in the threaded hole. When the device is fixed to the bedside, if the position of the opening mechanism 3 relative to the incision cannot be aligned, the extension rod 302 slides inside the sleeve 301, and the position of the opening point of the incision by the opening mechanism 3 can be further adjusted to improve the adaptability of the device. After the extension rod 302 is adjusted, it can be fixed by tightening the limit bolt B303 to ensure the stability and firmness of the structure when the device is opened.

[0031] A T-shaped rod 304 is inserted into the front end of the extension rod 302, and a push plate 305 is installed on the lower end surface of the T-shaped rod 304. A clamping sleeve 307 is fixedly connected to the back of the push plate 305, and the clamping sleeve 307 is fitted on the surface of the T-shaped rod 304. When the push plate 305 is adjusted to the surgical incision position, the push plate 305 is inserted into the incision, and the expansion mechanism 3 is further driven by the expansion adjustment mechanism 2 to slide along the direction perpendicular to the incision, so that the push plate 305 can expand the incision outward, further expose the tissue inside the incision, and facilitate the operation of medical staff. In addition, the two groups of expansion mechanisms 3 and the expansion adjustment mechanism 2 are distributed in a "U"-shaped structure, which further exposes the area above the surgical incision, thereby facilitating the operation of medical staff. The other end of the T-shaped rod 304 is fixedly connected with a control handle 306, and the push plate 305 can be controlled to rotate by the control handle 306, so that after the push plate 305 is inserted between the surgical incisions, the T-shaped rod 304 connected to the push plate 305 is controlled by the control handle 306 to rotate, so that the push plate 305 can flip the tissues on both sides of the surgical incision outward, thereby effectively exposing the area inside the surgical incision, and facilitating the operation of medical staff. In addition, the surface of the extension rod 302 is provided with a threaded hole, and a limiting bolt B303 is inserted into the threaded hole. The limiting bolt B303 is further tightened in the threaded hole to limit the T-shaped rod 304, ensuring the adjustment and fixation of the push plate 305, thereby maintaining the flipping and expansion of the human tissue.

[0032] The push plate 305 is set to a "V"-shaped structure, so that when the push plate 305 pushes the surgical incision, the top of the push plate 305 pushes the surgical incision first, so that the pushing degree of the surgical incision is greater than that of the edge, further avoiding the surgical incision being pushed too far and causing harm to the patient. At the same time, the lower end surface of the push plate 305 is fixedly connected with a convex strip 313, and the cross-section of the push plate 305 and the convex strip 313 is set to an "L"-shaped structure, so that when the push plate 305 pushes the tissue of the surgical incision, the convex strip 313 drags the human tissue from below, preventing the human tissue from slipping during the pushing process of the push plate 305, resulting in failure of the surgical incision to open.

[0033] A slide groove 308 is provided inside the lower end of the T-shaped rod 304, and a slide plate 309 is inserted inside the slide groove 308. A control rod 310 is fixedly connected to the lower end surface of the slide plate 309, and a pressing plate 311 is fixedly connected to the lower end surface of the control rod 310. The pressing plate 311 is located on one side of the push plate 305 and above the convex strip 313. A spring 312 is fixedly connected to the inner wall of the slide groove 308, and the other end of the spring 312 is fixedly connected to the upper end surface of the slide plate 309. Before the push plate 305 stretches the human tissue, the medical staff holds the control rod 310 by hand to pull the slide plate 309 to slide upward and squeeze the spring 312, so that the push plate 305 further stretches the human tissue, and then releases the control of the control rod 310, and the slide plate 309 slides downward under the elastic force of the spring 312, so that the pressing plate 311 contacts the surface of the human tissue, and further clamps the human tissue up and down. This ensures the stability of the expansion mechanism 3 when expanding the human tissue, and also prevents the elastic force of the human tissue in its own elastic state from causing the human tissue to slip. In the clamping process, the cross section of the surgical incision contacts the surface of the push plate 305, and further through the upper and lower clamping, the surgical incision can be effectively hemostatic.

Claims

1. A tissue distraction forceps for orthopedic spine surgery, comprising a fixing mechanism (1), characterized in that: The upper end of the fixing mechanism (1) is provided with an expansion adjustment mechanism (2), the surface of the expansion adjustment mechanism (2) is provided with an expansion mechanism (3), the expansion mechanism (3) is arranged in two groups and is symmetrically distributed, the expansion adjustment mechanism (2) comprises a slide rail frame (201) installed on the fixing mechanism (1), both end surfaces of the slide rail frame (201) are fixedly connected with mounting seats A (203), a screw rod (204) is inserted between the two groups of mounting seats A (203), two groups of slide tables (209) are installed on the surface of the screw rod (204), and the two groups of slide tables (209) are arranged on the slide rail frame (201). The sliding directions of the surfaces are opposite, and the two groups of the spreading mechanisms (3) are mounted on two groups of slides (209) in an adaptive manner. The surface of the slide rail frame (201) is fixedly connected with a mounting seat B (205), and a damping shaft (206) is inserted inside the mounting seat B (205). One end of the damping shaft (206) is fixedly connected with a crank (210), and the other end of the damping shaft (206) is fixedly connected with a control bevel gear (207). The surface of the screw rod (204) is fixedly connected with a driving bevel gear (208), and the control bevel gear (207) and the driving bevel gear (208) are meshingly connected.

2. The orthopedic spine surgery tissue distraction forceps according to claim 1, characterized in that: The fixing mechanism (1) comprises a fixing rod (101) installed on one side of the hospital bed, the fixing rod (101) is arranged in an "L" shape and is hollow inside, a horizontal end of the fixing rod (101) is inserted with a transverse sliding rod (102), one end of the transverse sliding rod (102) is fixedly connected with a fixing frame (103), the fixing frame (103) is arranged in an "L" shape, the lower end surface of the fixing frame (103) is fixedly connected with a bottom plate (104), the upper end surface of the fixing frame (103) is provided with a threaded hole and a threaded rod (105) is inserted in the threaded hole, and the lower end surface of the threaded rod (105) is sleeved with a clamping plate (106).

3. The orthopedic spine surgery tissue distraction forceps according to claim 2, characterized in that: The surface of the horizontal end opening of the fixing rod (101) is provided with a threaded hole and a limiting bolt A (107) is inserted into the threaded hole; the vertical end of the fixing rod (101) is inserted into a vertical sliding rod (108); the surface of the vertical end opening of the fixing rod (101) is also provided with a threaded hole and a limiting bolt A (107) is inserted into the surface; the expansion adjustment mechanism (2) comprises a slide rail frame (201) installed on the upper end surface of the vertical sliding rod (108); the lower end surface of the slide rail frame (201) is fixedly connected with a damping sleeve (202); the damping sleeve (202) is adaptively sleeved on the surface of the vertical sliding rod (108).

4. The orthopedic spine surgery tissue distraction forceps according to claim 1, characterized in that: The spreading mechanism (3) comprises a sleeve (301) fixedly connected to the surface of the slide (209), an extension rod (302) is inserted into the sleeve (301), a threaded hole is provided on the surface of the sleeve (301) and a limit bolt B (303) is inserted into the threaded hole, a T-shaped rod (304) is inserted into the front end of the extension rod (302), a push plate (305) is installed on the lower end surface of the T-shaped rod (304), and a clamping sleeve (307) is fixedly connected to the back of the push plate (305), and the clamping sleeve (307) is adaptively sleeved on the surface of the T-shaped rod (304).

5. The tissue distraction forceps for orthopedic spine surgery according to claim 4, characterized in that: The other end of the T-shaped rod (304) is fixedly connected to a control handle (306), and a threaded hole is provided on the surface of the extension rod (302) and a limiting bolt B (303) is inserted into the threaded hole.

6. The orthopedic spine surgery tissue distraction forceps according to claim 4, characterized in that: The push plate (305) is configured as a "V"-shaped structure, a convex strip (313) is fixedly connected to the lower end surface of the push plate (305), and the cross-sections of the push plate (305) and the convex strip (313) are configured as an "L"-shaped structure.

7. The tissue distraction forceps for orthopedic spine surgery according to claim 4, characterized in that: A slide groove (308) is provided inside the lower end of the T-shaped rod (304), a slide plate (309) is inserted inside the slide groove (308), a control rod (310) is fixedly connected to the lower end surface of the slide plate (309), a pressure plate (311) is fixedly connected to the lower end surface of the control rod (310), the pressure plate (311) is located on one side of the push plate (305) and above the convex strip (313), a spring (312) is fixedly connected to the inner wall of the slide groove (308), and the other end of the spring (312) is fixedly connected to the upper end surface of the slide plate (309).

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