Clinical operation traction equipment for general surgery department

Abstract

The invention belongs to the field of surgical traction equipment, and discloses clinical surgical traction equipment for the general surgery department, and the clinical surgical traction equipment is characterized in that a propelling assembly is slidably clamped in a sliding groove, and an elastic assembly is arranged at the upper end of the propelling assembly; when the propelling assembly moves to a scalp and skull adhesion area, the elastic assembly is pressed and contracted, and the bottom of the propelling assembly is kept in contact with the surface of the skull through the elastic assembly; when the propelling assembly moves to the skull sunken area, the elastic assembly restores elastically, and the elastic assembly presses the propelling assembly downwards, so that the bottom of the propelling assembly is attached to the bone surface of the sunken area; meanwhile, the propelling assembly is driven by the second rope to synchronously move in the direction close to the wound, the propelling assembly in linkage with a hook above is arranged below the wound, synchronous mechanical movement of pulling the wound and pushing out bone fragments is achieved through transmission of a pulley mechanism, the risk that the fragments move inwards to cause dura mater scratching is effectively reduced, and the safety of the dura mater is improved. And fragments can be concentrated to a surgical field center, so that quick cleaning is facilitated.

Description

Technical Field

[0001] The present disclosure belongs to the field of surgical traction equipment, and in particular relates to a surgical traction equipment for clinical use in general surgery. Background Art

[0002] In skull fracture repair surgery, shorter incisions are currently used to avoid the impact of a longer incision on recovery. However, due to the elasticity of tissue and the small size of the incision, a traction device is required to pull the tissue on both sides of the incision outward, opening the incision for easier observation.

[0003] However, a scalp traction surgical device with publication number CN118697396B, by threading the top threaded cylinder on the top of the top fixing frame to an external robotic arm or bracket, the side frame can be connected and fixed to the bracket or robotic arm with external bolts, so that the traction device can be fixed and installed in a portable manner, thereby improving the stability of the traction device during traction and eliminating the need for the operator to hold it continuously. However, the traction component is located above the scalp, and when it is pushed and pulled to both sides, a component force perpendicular to the scalp is formed at the wound. When there are fracture fragments inside the traction wound, there is a risk of the fragments moving toward the skull when the fracture fragments are directly pushed, which may scratch the fragile dura mater or even brain tissue, causing secondary damage. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a surgical traction device for general surgery clinical use, which solves the problem in the existing technology that due to the irregular shape of bone fragments and their frequent embedding in surrounding tissues, direct pushing operations pose a risk of fragments moving toward the skull, which may scratch the fragile dura mater or even brain tissue, causing secondary damage.

[0005] The purpose of this disclosure can be achieved through the following technical solutions:

[0006] A general surgery clinical traction device comprises: a wearable part, a traction component and a propulsion component;

[0007] The traction assembly is fixed to the upper end of the wearable portion and includes a support pad and a hook arranged parallel to the lower side of the support pad, wherein a slide groove is provided on the inner side of the hook;

[0008] The propulsion assembly is slidably engaged in the slide groove, and an elastic assembly is provided at the upper end of the propulsion assembly;

[0009] When the propulsion component moves to the adhesion area between the scalp and the skull, the elastic component is compressed and contracted, and the elastic component maintains the contact between the bottom of the propulsion component and the skull surface;

[0010] When the propulsion component moves to the skull depression, the elastic component elastically recovers and presses the propulsion component downward, so that the bottom of the propulsion component fits the bone surface of the depression.

[0011] The pulley mechanism comprises:

[0012] a first rope, with two ends connected to the traction assembly and the propulsion assembly respectively;

[0013] A second rope, one end of which is fixed to the first bracket, and the other end of which is passed through the movable pulley and the fixed pulley in sequence and then connected to the rotating shaft;

[0014] When the rotating shaft is driven, the traction assembly is pulled by the first rope to move away from the wound, and at the same time, the propulsion assembly is driven by the second rope to move synchronously toward the wound.

[0015] In some disclosures, a gap is provided between the side wall of the hook and the support pad, the end of the hook is configured as a tapered wedge, and the tip of the wedge is provided with a rounded structure.

[0016] In some disclosures, the support pad is made of a flexible material, and a plurality of connecting shafts are fixed to the outer surface of the support pad, and the connecting shafts are used to guide the moving path of the first rope.

[0017] In some disclosures, the second bracket is located on a side of the support pad away from the first bracket, a rotating shaft is fixed to the upper end of the second bracket, a support angle is fixed to the lower end of the second bracket, and the first bracket and the second bracket are fixed to the head by adhesive tape.

[0018] In some disclosures, the propulsion assembly includes a middle support, a fishbone block, a universal joint and a support wire, and the end of the first rope is fixedly connected to the middle support, and multiple fishbone blocks and universal joints are equidistantly arranged at both ends of the middle support for sliding, and the multiple fishbone blocks are connected by universal joints, and the outer sides of the two outermost universal joints are fixed with support wires that pass through the outermost fishbone blocks.

[0019] In some disclosures, a limiting ball is fixed at the end of the support wire, and the support wire and the limiting ball are both made of latex, and the diameter of the limiting ball is greater than the length of the slide groove, thereby limiting the propulsion component from sliding along the slide groove.

[0020] In some disclosures, the universal joint includes two symmetrically arranged forks and a cross shaft, and the inner walls of adjacent fishbone blocks are provided with axial slide rails. Each fork is connected to the fishbone block through the slide rails to form a sliding pair, and the ends of the two forks are hinged to each other through the cross shaft to form a rotational degree of freedom.

[0021] In some disclosures, a limiting groove is provided on the inner side of the axial slide rail, and a limiting ring adapted to the limiting groove is fixed on the outer side of the fork head, and the two side surfaces of the limiting ring are respectively fitted with the inner wall of the limiting groove.

[0022] In some disclosures, a magnet is fixed to one end of the first rope close to the propulsion assembly, and the middle support is made of metal.

[0023] In some disclosures, the elastic component includes a cushion layer, a guide rod and a support spring, and a guide groove is opened at the upper end of the fishbone block and the middle support, a guide rod is slidably provided at the upper end of the guide groove, and a cushion layer is fixed to the upper end of the guide rod, and a support spring is fixed between the cushion layer and the fishbone block.

[0024] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0025] A fixed connection is a connection in which parts or components are fixed without any relative movement;

[0026] A rotational connection is a connection between parts that allows the parts to rotate relative to each other;

[0027] Threaded connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and easy assembly and disassembly. It is widely used in mechanical engineering and connection structure fields.

[0028] A sliding connection is a connection between parts that allows the parts to slide relative to each other.

[0029] Beneficial effects of the present disclosure:

[0030] 1. By setting a propulsion component below the wound that is linked to the hook above, and using a pulley mechanism to achieve synchronous mechanical movement of "pulling the wound" and "pushing out bone fragments", the step-by-step operation time can be significantly shortened, allowing the surgeon to pull the wound to expose the surgical field while reducing the risk of fragments being dispersed due to operation delays. The pulling and pushing movements are synchronized by a single rotating shaft, simplifying the operator's operation complexity.

[0031] 2. The propulsion assembly can bend and deform along the shape of the skull, allowing it to slide along the upper end surface of the skull. At the same time, when dealing with the depression in the fracture area, the propulsion assembly can further deform and conform to the shape of the depression, so that the propulsion assembly applies horizontal thrust to the bone fragments during movement, thereby reducing the risk of scratching the dura mater during the movement of bone fragments;

[0032] 3. At the same time, when the skull in the concave area is fragile, the cooperation of the elastic component and the propulsion component can automatically reduce the pressure on the concave area, thereby reducing the damage to the dura mater when pushing out bone fragments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present disclosure;

[0035] Figure 2 is a schematic diagram of the connection structure of the traction assembly and the propulsion assembly according to an embodiment of the present disclosure;

[0036] Figure 3 is a schematic diagram of the connection structure between the propulsion assembly and the first rope according to an embodiment of the present disclosure;

[0037] Figure 4 is a schematic diagram of the overall structure of the propulsion assembly of an embodiment of the present disclosure;

[0038] Figure 5 is a schematic diagram of a partially exploded structure of a propulsion assembly according to an embodiment of the present disclosure;

[0039] Figure 6 is a schematic diagram of the overall structure of the universal joint according to an embodiment of the present disclosure;

[0040] Figure 7 It is a schematic diagram of the connection structure of the universal joint and the fishbone block in an embodiment of the present disclosure.

[0041] In the figure: 1. wearing part; 2. traction assembly; 21. support pad; 22. hook; 211. movable pulley; 212. connecting shaft; 221. slide groove; 3. first bracket; 31. fixed pulley; 4. first rope; 41. magnet; 5. second rope; 6. second bracket; 61. rotating shaft; 62. support angle; 7. propulsion assembly; 71. middle support; 72. fishbone block; 73. universal joint; 74. support wire; 75. guide groove; 721. slide rail; 7211. limit groove; 731. fork; 732. cross shaft; 7311. limit ring; 741. limit ball; 8. elastic assembly; 81. cushion; 82. guide rod; 83. support spring. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0043] Please refer to Figures 1 to 7, a general surgery clinical traction device, comprising: a wearable portion 1, a traction component 2 and a propulsion component 7;

[0044] The traction assembly 2 is fixed to the upper end of the wearable portion 1 and includes a support pad 21 and a hook 22 arranged parallel to the lower side of the support pad 21. A slide groove 221 is provided on the inner side of the hook 22.

[0045] The propulsion assembly 7 is slidably engaged in the slide groove 221, and an elastic assembly 8 is provided at the upper end of the propulsion assembly 7;

[0046] When the propulsion component 7 moves to the adhesion area between the scalp and the skull, the elastic component 8 is compressed and contracted, and the elastic component 8 maintains the bottom of the propulsion component 7 in contact with the skull surface;

[0047] When the propulsion component 7 moves to the skull depression area, the elastic component 8 elastically recovers and presses the propulsion component 7 downward, so that the bottom of the propulsion component 7 fits the bone surface of the depression area;

[0048] The pulley mechanism comprises:

[0049] The first rope 4 has two ends connected to the traction assembly 2 and the propulsion assembly 7 respectively;

[0050] A second rope 5, one end of which is fixed to the first bracket 3, and the other end of which is passed through the movable pulley 211 and the fixed pulley 31 in sequence and then connected to the rotating shaft 61;

[0051] When the rotating shaft 61 is driven, the traction assembly 2 is pulled by the first rope 4 to move away from the wound, and at the same time, the propulsion assembly 7 is driven by the second rope 5 to move synchronously toward the wound.

[0052] During use, a straight line wound is cut at the fracture site of the patient, and then the hook 22 on the traction component 2 is hung on the wound of the patient. At this time, the cortex outside the wound is opened outward by utilizing the height difference of the hook 22, and then the wearing part 1 is worn on the head. At this time, another straight line wound is cut at the end of the hook 22, and the straight line wound cut later is located behind the fracture area. At this time, the propulsion component 7 is slidably connected to the notch inside the hook 22. At this time, the rocker is rotated to drive the rotating shaft 61 to rotate, and the second rope 5 is wound around the rotating shaft 61. On the outside, while the second rope 5 is being wound, it drives the traction assembly 2 toward the side away from the wound. Simultaneously, as the traction assembly 2 moves, the first rope 4 drives the propulsion assembly 7 toward the side closer to the wound. An elastic assembly 8 is provided between the propulsion assembly 7 and the scalp. The elastic restoring force of the elastic assembly 8 applies a downward thrust to the propulsion assembly 7, so that the bottom of the propulsion assembly 7 is always supported against the bottom of the skull. When the propulsion assembly 7 moves to the adhesion area, the horizontal shear force generated by the movement of the propulsion assembly 7 is used to separate the scalp from the skull. When the propulsion assembly 7 moves to the recessed area, the gap between the scalp and the skull at the upper end of the recessed area increases, and the pressure on the elastic assembly 8 is weakened, allowing the elastic assembly 8 to elastically recover. At this time, the height of the propulsion assembly 7 increases, so that the bottom of the propulsion assembly 7 is in contact with the inner surface of the recessed area. At this time, the bone fragments suspended between the skull and scalp are located on the side of the propulsion assembly 7 closer to the wound. Compared to the conventional propulsion assembly 7 whose position does not change, when the propulsion assembly 7 moves above the recessed area, the propulsion exerts a downward thrust on the suspended bone fragments. Pressure, which can easily cause suspended bone fragments to embed into the dura mater, thereby causing damage to the dura mater. The present application sets a propulsion component 7 under the wound that is linked to the upper retractor, and uses a rope pulley transmission to realize the synchronous mechanical movement of "pulling the wound" and "pushing out the bone fragments". Before the propulsion component 7 moves to the bone fragments, a horizontal thrust is applied to the bone fragments on the scalp and then pushed to the outside of the wound, which effectively reduces the risk of dura mater scratches caused by the inward movement of the fragments, and can also concentrate the fragments to the center of the surgical field for quick cleaning.

[0053] Please refer to Figures 2 to 3 A gap is provided between the side wall of the hook 22 and the support pad 21 , and the end of the hook 22 is configured as a tapered wedge, and the tip of the wedge is provided with a rounded structure.

[0054] The tapered wedge-shaped, gradually varying height facilitates the hook 22 to penetrate the inner side of the scalp, while the rounded corner at the end of the hook 22 can reduce the risk of damaging the scalp or dura mater during the penetration process.

[0055] Please refer to Figures 1 to 3 The support pad 21 is made of a flexible material, and a plurality of connecting shafts 212 are fixed to the outer surface of the support pad 21 . The connecting shafts 212 are used to guide the moving path of the first rope 4 .

[0056] The flexible material can better fit the shape of the head. At the same time, after the support pad 21 fits the head, the overall shape of the support pad 21 is bent, and the hook 22 is arranged parallel to the support pad 21, so that the shape of the connecting line of the cross sections of multiple hooks 22 is an arc, rather than being located on the same horizontal plane, which can better fit the head. When the first rope 4 needs to change direction, it bypasses the outer surface of the connecting shaft 212. Since the contact surface between the connecting shaft 212 and the first rope 4 is an arc surface, in order to reduce the friction between the support pad 21 and the first rope 4, the connecting shaft 212 optimizes the traction path by changing the transmission direction of the first rope 4.

[0057] Please refer to Figures 1 to 2 The second bracket 6 is located on the side of the support pad 21 away from the first bracket 3. The upper end of the second bracket 6 is fixed with a rotating shaft 61, the lower end of the second bracket 6 is fixed with a support angle 62, and the first bracket 3 and the second bracket 6 are fixed to the head by adhesive tape.

[0058] During use, the first bracket 3 is fixed to the side of the support pad 21 away from the wound by tape, and the wearing part 1 passes through the bottom of the first bracket 3, and the second bracket 6 is fixed to the side of the support pad 21 close to the wound, and the height of the second bracket 6 is raised by the support angle 62 to reduce the obstruction of the wound by the second bracket 6, which is conducive to reducing interference with the wound operation area, and the rotating shaft 61 is fixed to the upper end of the raised second bracket 6 to optimize the torque transmission efficiency of the rope transmission path and ensure that the direction of traction force is accurately controllable.

[0059] Please refer to Figures 3 to 6 The propulsion assembly 7 includes a middle support 71, a fishbone block 72, a universal joint 73 and a support wire 74, and the end of the first rope 4 is fixedly connected to the middle support 71. A plurality of fishbone blocks 72 and universal joints 73 are equidistantly arranged at both ends of the middle support 71 for sliding, and the plurality of fishbone blocks 72 are connected by universal joints 73. The outer sides of the two outermost universal joints 73 are fixed with support wires 74 that pass through the outermost fishbone blocks 72.

[0060] When in use, the limiting balls 741 at both ends of the support wire 74 are engaged with the outer side of the slide groove 221. When the propulsion component 7 is placed in the interlayer between the scalp and the skull, the fishbone block 72 is fit with the upper end surface of the skull due to the influence of gravity. At the same time, multiple fishbone blocks 72 are bent with the universal joint 73 as the center of the circle. The universal joint 73 can make the propulsion component 7 adapt to the bending angle of the skull. When the first rope 4 drives the middle support 71 to move outward to the side close to the wound, the middle support 71 moves forward first, and then the middle support 71 drives the fishbone blocks 72 on both sides to move forward in turn through the universal joints 73 on both sides. Please refer to Figure 4, and the end of the support wire 74 is fixed with a limiting ball 741. The material of the support wire 74 and the limiting ball 741 are both latex material, which is soft, does not hurt the skin and is easy to deform. In addition, the diameter of the limiting ball 741 is larger than the length of the slide 221, thereby limiting the propulsion component 7 from sliding along the slide 221. When moving, a wave-like progressive motion with the middle support 71 as the wave crest is formed. Compared with the "overall scraping" of the traditional one-shaped propeller, it can reduce tissue damage. When the propulsion component 7 moves in a wave-like progressive motion, the propulsion component 7 can be fixed to one side of the middle support 71, and the remaining fishbone blocks 72 are driven to move by the tension of the universal joint 73. The synchronization of the movement of the support wires 74 at both ends is low, and when the traditional I-shaped propeller is driven by a single pulling force, the propeller is subjected to uneven force when moving, which easily causes stress to be concentrated at the connection with the first rope 4, and the synchronization of the movement of the two ends of the support wire 74 is high during the movement. At the same time, when the propulsion component 7 forms a wave-like progressive motion, the universal joint 73 between adjacent fishbone blocks 72 rotates along the internal hinge of the universal joint 73, so that the universal joint 73 as a whole is transformed from horizontal to inclined, so that the lateral distance between the two adjacent universal joints 73 is further reduced, which is conducive to reducing the blind spot position where the propulsion component 7 has not moved during the propulsion process.

[0061] Please refer to Figures 5 and 6 The universal joint 73 includes two symmetrically arranged forks 731 and a cross shaft 732. An axial slide rail 721 is provided on the inner wall of the adjacent fishbone block 72. Each fork 731 is connected to the fishbone block 72 through the slide rail 721 to form a sliding pair. The ends of the two forks 731 are hinged to each other through the cross shaft 732 to form a rotational degree of freedom.

[0062] The end of the fork 731 away from the cross shaft 732 is slidably connected to the inner wall of the fishbone block 72, and then the two fork heads 731 are rotated and connected together through the cross shaft 732. At the same time, when the fishbone block 72 performs a wave-like progressive motion, the two fork heads 731 rotate along the connection of the cross shaft 732, and the fork head 731 away from the middle support 71 rotates with the vertical axis of the cross shaft 732 as the center of the circle and tilts to reduce the lateral distance between the two adjacent fishbone blocks 72.

[0063] Please refer to Figure 7 A limiting groove 7211 is provided on the inner side of the axial slide rail 721, and a limiting ring 7311 adapted to the limiting groove 7211 is fixed on the outer side of the fork head 731, and the two side surfaces of the limiting ring 7311 are respectively in contact with the inner wall of the limiting groove 7211;

[0064] When in use, the limiting ring 7311 on the fork head 731 is inserted into the inner side of the limiting groove 7211, so that the universal joint 73 can move vertically along the limiting groove 7211, so that the fishbone block 72 can fit with the arc surface of the upper end face of the skull, and the limiting ring 7311 is axially limited by the limiting groove 7211 to prevent the fork head 731 from escaping from the fishbone block 72.

[0065] Please refer to Figures 3 and 4 A magnet 41 is fixed to one end of the first rope 4 close to the propulsion assembly 7, and the middle support 71 is made of metal.

[0066] When the hook 22 of the traction component 2 is inserted under the cortex, the magnet 41 of the first rope 4 is temporarily fixed to the side wall of the end of the hook 22 with tape. When the end of the hook 22 scratches the scalp to form a wound, the tape on the outside of the magnet 41 is removed, and the metal middle support 71 on the propulsion component 7 is magnetically adsorbed to the magnet 41, so as to quickly fix the first rope 4 and the propulsion component 7 to improve the convenience of the device.

[0067] Please refer to Figures 4 and 5 The elastic component 8 includes a cushion layer 81, a guide rod 82 and a support spring 83, and a guide groove 75 is opened at the upper end of the fishbone block 72 and the middle support 71, and a guide rod 82 is slidably provided at the upper end of the guide groove 75, and a cushion layer 81 is fixed to the upper end of the guide rod 82, and a support spring 83 is fixed between the cushion layer 81 and the fishbone block 72.

[0068] When it moves to the adhesion area between the scalp and the skull, the gap between the scalp and the skull is smaller, and the scalp exerts downward pressure on the pad 81 to compress the support spring 83 to shrink inward, so that the pad 81 and the guide rod 82 move downward, thereby shortening the overall height of the pad 81 and the propulsion component 7 to reduce the resistance of the propulsion component 7 to pass through the adhesion. At the same time, when the propulsion component 7 moves to the recessed area, the gap between the scalp and the skull increases. In order to enable the bottom of the propulsion component 7 to smoothly fit with the upper end surface of the skull, the support spring 83 releases its elastic restoring force. When the support spring 83 recovers, it pushes the fishbone block 72 to move downward, and uses the elongation of the support spring 83 to compensate for the excess gap when the propulsion component 7 is in the recessed area. When the support spring 83 is restored, its downward pressure will also be weakened. When the support spring 83 is in its original length state, the total height of the elastic component 8 and the propulsion component 7 is less than the thickness of the skull and the height of the hook 22, so that as the depth of the skull depression increases, the downward pressure that the depression can withstand increases. When the support spring 83 is in its original length state, the total height of the elastic component 8 and the propulsion component 7 is less than the thickness of the skull and the height of the hook 22, so that when the skull thickness in the depression area is zero, the support spring 83 does not actively apply pressure to the depression area, and the support spring 83 also applies an upward pulling force to the propulsion component 7 to further reduce the pressure of the propulsion component 7 on the depression area, thereby facilitating the protection of the dura mater during the propulsion process.

[0069] The following further describes a general surgery clinical traction device provided by the present invention in conjunction with the accompanying drawings and implementation examples.

[0070] During use, a scalp incision is made at the surgical site to form a wound, increasing the exposed area of ​​the bottom of the wound. The support pad 21 is then attached to the scalp surface outside the wound, and the hook 22 is inserted between the scalp and the skull along the wound until there is no bone fragment at the end of the hook 22. At this time, a micro incision is cut again at the end of the hook 22, and the propulsion component 7 is placed in the area between the scalp and the skull at the incision at the end of the hook 22. At this time, the scalp above the hook 22 is located in the gap. The first rope 4 fixed to the end of the hook 22 is removed from the hook 22, and the magnet 41 is magnetically attracted to the outside of the middle support 71, and the support wires 74 at both ends of the propulsion component 7 are inserted into the slide groove 221 on the hook 22, and the limiting ball 741 is located on the outside of the slide groove 221;

[0071] At this time, the rotating shaft 61 is rotated, and the rotating shaft 61 winds the second rope 5 around the outside of the rotating shaft 61. At the same time, during the winding of the second rope 5, the traction assembly 2 is driven toward the side away from the wound via the movable pulley 211. At the same time, the traction assembly 2 moves, and the first rope 4 drives the propulsion assembly 7 toward the side close to the wound. An elastic component 8 is provided between the propulsion assembly 7 and the scalp. The elastic restoring force of the elastic component 8 applies a downward thrust to the propulsion assembly 7, so that the bottom of the propulsion assembly 7 is always supported by the bottom of the skull. When the propulsion assembly 7 moves to the adhesion area, the horizontal shear force generated by the movement of the propulsion assembly 7 is used to separate the scalp from the skull. When the propulsion assembly 7 moves to the recessed area, the gap between the scalp and the skull at the upper end of the recessed area increases. At this time, the support spring 83 releases its elastic restoring force. When the support spring 83 recovers, it pushes the fishbone block 72 downward. The extension of the support spring 83 is used to compensate for the excess gap when the propulsion assembly 7 is in the recessed area, thereby reducing the vertical pressure of the bone fragments by the propulsion assembly 7, which may cause the bone fragments to scratch the dura mater and cause damage.

[0072] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0073] The above shows and describes the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present disclosure. Various changes and improvements may be made to the present disclosure without departing from the spirit and scope of the present disclosure, and such changes and improvements shall fall within the scope of the present disclosure.

Claims

1. A general surgery clinical traction device, characterized in that: include: Wearable part (1), traction assembly (2) and propulsion assembly (7); The traction assembly (2) is fixed to the upper end of the wearable portion (1), and comprises a support pad (21) and a hook (22) arranged parallel to the lower side of the support pad (21), wherein a slide groove (221) is provided on the inner side of the hook (22); The propulsion assembly (7) is slidably engaged in the slide groove (221), and an elastic assembly (8) is provided at the upper end of the propulsion assembly (7); When the propulsion component (7) moves to the adhesion area between the scalp and the skull, the elastic component (8) is compressed and contracted, and the elastic component (8) maintains the bottom of the propulsion component (7) in contact with the skull surface; When the propulsion component (7) moves to the skull depression area, the elastic component (8) elastically recovers, and the elastic component (8) presses down the propulsion component (7), so that the bottom of the propulsion component (7) fits the bone surface of the depression area; The pulley mechanism comprises: A first rope (4), the two ends of which are respectively connected to the traction assembly (2) and the propulsion assembly (7); A second rope (5), one end of which is fixed to the first bracket (3), and the other end of which is passed through a movable pulley (211) and a fixed pulley (31) in sequence and then connected to a rotating shaft (61); When the rotating shaft (61) is driven, the traction assembly (2) is pulled by the first rope (4) to move away from the wound, and at the same time, the propulsion assembly (7) is driven by the second rope (5) to move synchronously toward the wound.

2. A general surgery clinical traction device according to claim 1, characterized in that: A gap is provided between the side wall of the hook (22) and the support pad (21); the end of the hook (22) is configured into a tapered wedge shape, and the tip of the wedge shape is provided with a rounded corner structure.

3. A general surgery clinical traction device according to claim 2, characterized in that: The support pad (21) is made of a flexible material, and a plurality of connecting shafts (212) are fixed on the outer surface of the support pad (21), and the connecting shafts (212) are used to guide the moving path of the first rope (4).

4. A general surgery clinical traction device according to claim 1, characterized in that: The second bracket (6) is located on a side of the support pad (21) away from the first bracket (3); a rotating shaft (61) is fixed to the upper end of the second bracket (6); a supporting angle (62) is fixed to the lower end of the second bracket (6); and the first bracket (3) and the second bracket (6) are fixed to the head by adhesive tape.

5. A general surgery clinical traction device according to claim 1, characterized in that: The propulsion assembly (7) comprises a middle support (71), a fishbone block (72), a universal joint (73) and a support wire (74), and the end of the first rope (4) is fixedly connected to the middle support (71), and a plurality of fishbone blocks (72) and universal joints (73) are equidistantly arranged at both ends of the middle support (71), and the plurality of fishbone blocks (72) are connected by universal joints (73), and the outer sides of the two outermost universal joints (73) are fixed with support wires (74) that pass through the outermost fishbone blocks (72).

6. A general surgery clinical traction device according to claim 5, characterized in that: A limiting ball (741) is fixed to the end of the support wire (74), and the support wire (74) and the limiting ball (741) are both made of latex material, and the diameter of the limiting ball (741) is greater than the length of the chute (221), thereby limiting the propulsion component (7) from sliding along the chute (221).

7. A general surgery clinical traction device according to claim 5, characterized in that: The universal joint (73) includes two symmetrically arranged forks (731) and a cross shaft (732). An axial slide rail (721) is provided on the inner wall of the adjacent fishbone blocks (72). Each fork (731) is connected to the fishbone block (72) through the slide rail (721) to form a sliding pair. The ends of the two forks (731) are hinged to each other through the cross shaft (732) to form a rotational degree of freedom.

8. A general surgery clinical traction device according to claim 7, characterized in that: A limiting groove (7211) is provided on the inner side of the axial slide rail (721), and a limiting ring (7311) adapted to the limiting groove (7211) is fixed on the outer side of the fork head (731), and the two side surfaces of the limiting ring (7311) are respectively fitted with the inner wall of the limiting groove (7211).

9. A general surgery clinical traction device according to claim 8, characterized in that: A magnet (41) is fixed to one end of the first rope (4) close to the propulsion assembly (7), and the middle support (71) is made of metal.

10. A general surgery clinical traction device according to claim 9, characterized in that: The elastic component (8) comprises a cushion layer (81), a guide rod (82) and a support spring (83), and the upper ends of the fishbone block (72) and the middle support (71) are provided with a guide groove (75), the upper end of the guide groove (75) is slidably provided with a guide rod (82), and the upper end of the guide rod (82) is fixed with a cushion layer (81), and a support spring (83) is fixed between the cushion layer (81) and the fishbone block (72).

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