High speed bending planer tool and system thereof

Abstract

The present application relates to a kind of high-speed curved planer and its system, belong to orthopedic medical instrument technical field, including: holding part, it is configured as hand-held part to facilitate operator operation and control the high-speed curved planer;Insertion part, it extends from the handle, insertion part includes inner tube, outer tube, inner tube is movably arranged in outer tube, the insertion part is equipped with curved section;Outer tube, including curved section and straight section, its curved section is hard elbow pipe or adjustable soft elbow pipe;Inner tube, including curved section and straight section, its curved section is soft elbow pipe, soft elbow pipe is equipped with braided layer outside, inner tube is connected with torque transmission element / component, the torque transmission element / component connection is used to drive inner tube rotation;Cutting part, including outer cutting tool bit and inner cutting tool bit, the outer cutting tool bit is arranged at the distal end of outer tube, the inner cutting tool bit is arranged at the distal end of inner tube.The high-speed curved planer can be flexibly adjusted the angle of planer in narrow and complex surgical environment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of orthopedic medical devices, in particular to a high-speed curved planer and a system thereof. BACKGROUND

[0002] In the existing field of medical devices, especially in orthopedic surgery, planers are widely used as a common tool for cutting and shaping soft tissues. However, with the increasing complexity and precision requirements of medical procedures, traditional planers have gradually exposed many shortcomings.

[0003] Firstly, the structure of traditional planers is fixed, with a straight rod-shaped head, which makes it very difficult for doctors to operate during the surgery when the surgical site is in a difficult-to-reach position. Especially in cases where complex anatomical structures need to be handled, traditional planers often cannot meet the surgical needs, forcing doctors to create larger channels or even need to use orthopedic grinding heads to remove healthy bones to complete the surgery. This not only reduces surgical efficiency but also greatly increases surgical costs.

[0004] Currently, there are some planers with bending functions, but these planers have limited bending ranges and cannot meet the needs of multi-angle and multi-directional operation. The existing planer design still cannot meet the clinical needs.

[0005] To solve the above problems, a high-speed curved planer is proposed. SUMMARY

[0006] The purpose of the present application is to provide a high-speed curved planer and a system thereof, which improves the operation space and comfort of the planer.

[0007] To solve the above technical problems, the present application is realized by the following technical scheme:

[0008] A high-speed curved planer, comprising:

[0009] a holding portion configured to facilitate an operator to operate and control the high-speed curved planer;

[0010] an insertion portion extending from the handle, the insertion portion comprising an inner tube and an outer tube, the inner tube being movably arranged in the outer tube, the insertion portion being provided with a curved section;

[0011] the outer tube comprising a curved section and a straight section, the curved section being a hard elbow or an adjustable soft elbow;

[0012] the inner tube comprising a curved section and a straight section, the curved section being a soft elbow, the soft elbow being provided with a braided layer, the inner tube being connected with a torque transmission element / assembly, the torque transmission element / assembly being used to drive the rotation of the inner tube;

[0013] The cutting portion includes an outer cutting head and an inner cutting head, the outer cutting head is arranged at the distal end of the outer tube, and the inner cutting head is arranged at the distal end of the inner tube.

[0014] In another aspect, a high-speed curved planer system includes the high-speed curved planer described above, and further includes a power source for driving the planer, the power source is connected with the inner tube through the torque transmission element / assembly in the holding portion to provide the rotation power of the inner tube. Advantages

[0015] The high-speed curved planer has soft and hard curved structures, so that the angle of the planer can be flexibly adjusted in a narrow and complex surgical environment, thereby enhancing the flexibility and adaptability of operation, especially in the area of difficult-to-reach bone tissue, which can effectively improve the accuracy of the operation.

[0016] By the design of the soft adjustable curved tube, the cutting range and angle can be accurately controlled during the operation as needed, avoiding large-scale cutting of healthy tissues, thereby effectively reducing the damage to the surrounding bones and soft tissues during the operation.

[0017] Due to the curved insertion portion, the planer can smoothly pass through complex bone structures or narrow surgical channels, reducing the dependence on larger surgical channels, thereby improving the utilization efficiency of the operation space.

[0018] The woven layer structure on the inner tube can improve the transmission stability of the hose and obtain higher rotation speed and torque.

[0019] Of course, implementing any product of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a whole structure diagram of the embodiment of the present disclosure;

[0022] Figure 2 It is a double-bend whole structure diagram of the embodiment of the present disclosure;

[0023] Figure 3 It is an outer tube structure diagram of the embodiment of the present disclosure;

[0024] Figure 4 It is an inner tube structure diagram of the embodiment of the present disclosure;

[0025] Figure 5 Figure 1 is a structural diagram of the inner tube front end of an embodiment of the present disclosure;

[0026] Figure 6 Figure 2 is a structural diagram of the outer cutter head of an embodiment of the present disclosure;

[0027] Figure 7 Figure 3 is a structural diagram of the winding layer of an embodiment of the present disclosure;

[0028] Figure 8 Figure 4 is a structural diagram of the cutter head fitting of an embodiment of the present disclosure;

[0029] Figure 9 Figure 5 is a structural diagram of the traction rope of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the protection scope of the present application.

[0031] It should be noted that the "far end" and "far side" mentioned in the present application can be understood as the end far away from the operator, and the "near end" and "near side" can be understood as the end close to the operator.

[0032] In one embodiment, as shown in Figures 1-2 The structure of the high-speed curved planer cutter provided by the present application includes a holding part 5, an insertion part 1 and a cutting part.

[0033] The insertion part 1 includes an outer tube 11 and an inner tube 12, the inner tube 12 is movably installed in the outer tube 11, the outer tube 11 is fixedly arranged on the holding part 5, and the insertion part 1 is provided with a curved section.

[0034] The cutting part includes an outer cutting cutter head 113 and an inner cutting cutter head 123, the outer cutting cutter head 113 is arranged at the far end of the outer tube 11, and the inner cutting cutter head 123 is arranged at the far end of the inner tube 12.

[0035] In order to facilitate the user to operate the high-speed curved planer cutter, the holding part 5 is provided for the user to easily hold, which not only provides a position for the user to hold and operate the high-speed curved planer cutter, but also is internally provided with a structure for providing rotary power to the inner tube 12.

[0036] As shown in Figure 2As shown, the straight section of the outer tube 11 and the inner tube 12 is a stainless steel rigid tube, and the curved section of the outer tube 11 can be a hard elbow or an adjustable soft elbow; the inner tube is connected with a torque transmission element / assembly for driving the rotation of the inner tube; the torque transmission element / assembly can be driven by a motor.

[0037] In the structure shown in the figure, the hard elbow is integrated with the outer tube 11, and the curved section is set by bending the outer tube 11. This structure has the advantages of high strength and good support, which can ensure the strength of the curved section of the outer tube, and has the advantages of simple structure and easy processing. However, this structure cannot be adjusted, which will increase the size of the surgical channel, and cannot be adjusted in real time under the endoscope to adapt to different positions.

[0038] In the structure shown in the figure, the hard elbow is integrated with the outer tube 11, and the curved section is set by bending the outer tube 11. This structure has the advantages of high strength and good support, which can ensure the strength of the curved section of the outer tube, and has the advantages of simple structure and easy processing. However, this structure cannot be adjusted, which will increase the size of the surgical channel, and cannot be adjusted in real time under the endoscope to adapt to different positions.

[0039] In some embodiments, the adjustable soft elbow structure can be as shown in the figure Figure 3 As shown, the outer soft elbow 112 has a circular tube structure, and the two sides are uniformly provided with spring grooves 1121 that are staggered with each other, the spring grooves 1121 are V-shaped, the opening is outward, and the spring grooves 1121 are arranged on both sides of the outer soft elbow 112 in the direction that needs to be bent; the soft elbow is made of spring steel to ensure elasticity and rigidity; further, the soft elbow 112 has a distal end provided with a knife head positioning groove 1122 for installing and positioning an outer cutting knife head 113, and the outer cutting knife head 113 is provided with a knife head positioning boss 1131 that cooperates with the knife head positioning groove 1122.

[0040] The outer soft elbow 112 is provided with a traction rope threading hole 1123, and the traction rope threading hole 1123 is provided with a traction rope 2, the distal end of the traction rope 2 is fixed on the outer cutting knife head 113 or the distal end of the outer soft elbow 112, and the proximal end of the traction rope 2 is arranged on the adjusting mechanism of the holding part 5, so that the angle adjustment under the endoscope can be completed.

[0041] The part of the adjusting mechanism connected with the proximal end of the traction rope 2 can pull and tension the traction rope 2, the adjusting mechanism can be driven by sliding, rotating, etc., and the control method of the existing snake bone adjusting handle can be used.

[0042] The inner tube 12 includes a soft tube section and a hard tube section, the soft tube section is arranged at the curved section position of the insertion part 1, and the soft tube section and the hard tube section are connected by pressure welding or welding, the soft tube section can be made of spring, cutting hose, etc., based on the torque transmission and high-speed stability, a soft tube is proposed in the present application Figure 4As shown, in some embodiments, the inner tube 12 is sequentially provided with a hard tube segment 121, an inner hose segment 122, and an inner cutting head 123 from the proximal end to the distal end; the inner hose segment 122 includes a plurality of inner hose intermediate parts 1221 and a distal end connector 1223 and a proximal end connector 1222 respectively arranged at both ends of the inner hose segment 122, the inner hose intermediate parts 1221 are connected end to end, and the inner hose intermediate parts 1221 are in the shape of a whole circular ring.

[0043] The connection mode of the inner hose intermediate part 1221 is as shown in Figure 7 As shown, the distal end of the inner hose intermediate part 1221 is provided with two distal end connection grooves 1229 distributed in a circle, the distal end connection grooves 1229 are provided with a distal end fixing boss 1228, the distal end of the distal end fixing boss 1228 is in a circular shape, and the connection part of the distal end fixing boss 1228 and the inner hose intermediate part 1221 is a trapezoid gradually increasing from the distal end to the proximal end.

[0044] The proximal end of the inner hose intermediate part 1221 is provided with a proximal end connection boss 1225 matched with the distal end connection groove 1229, the proximal end connection boss 1225 is arranged in the distal end connection groove 1229, the proximal end connection boss 1225 and the distal end connection groove 1229 are provided with an installation gap for giving way when bending, the distal end connection groove 1229 is provided with a proximal end connection groove 1226 matched with the distal end fixing boss 1228, and the distal end fixing boss 1228 is arranged in the proximal end connection groove 1226; the proximal end connection boss 1225 is provided with an outer anti-falling boss 1227;

[0045] The distal end connector 1223 and the proximal end connector 1222 are connected with the inner hose intermediate part 1221 through the same connection structure as the inner hose intermediate part 1221; the side of the inner hose intermediate part 1221, the distal end connector 1223, and the proximal end connector 1222 close to each other is provided with a bending giving way groove on both sides of the connection structure to ensure that the inner hose segment 122 will not interfere when bending.

[0046] In some embodiments, the outer side of the inner hose segment 122 is provided with a winding layer;

[0047] Further, the winding layer is composed of a plurality of stainless steel braided flexible shafts 3, the winding direction of which is determined according to the rotation direction of the inner tube 12, and the winding layer is tightened with the rotation of the inner tube 12, so that the torque can be transmitted through the winding layer, and the stability of the inner hose segment 122 is ensured. As shown in Figure 7 As shown, a plurality of flexible shaft mounting grooves 1230 can be arranged on the outer side of the inner hose segment 122 when arranged; such arrangement can ensure the stability of the mounting of the stainless steel braided flexible shaft 3, the stainless steel braided flexible shaft 3 adopts a structure of multiple winding and weaving without a mandrel, and the spiral directions of adjacent two layers of weaving are opposite.

[0048] In some embodiments, asFigure 4 As shown, the winding layer can be tightly wound by multiple strands of stainless steel soft wire, and the winding direction is determined by the rotating direction of the inner tube 12, which tightens with the rotating inner tube 12, thus ensuring the firm stability of the inner hose section 122 components, and the outermost winding layer can play a role in transmitting torque.

[0049] In some embodiments, the inner cutting head 123 is provided with multiple inner protruding cutting edges 1231 for cutting, and the outer cutting head 113 is provided with multiple outer protruding cutting edges 1231 for cutting, thus avoiding the blockage of the channel caused by the excessive cutting of soft tissue.

[0050] Since the outer soft elbow pipe 112 needs to have greater rigidity to ensure its stability during operation, in this case, it is difficult to ensure the safety margin under this tension force by using a traditional single control traction rope of the snake bone, and in the case of simultaneous operation of multiple traction ropes, due to the consistency of the force direction, the existing adjusting handle is driven by a rigid moving part, which is difficult to ensure the uniform force of each traction rope; in some embodiments, the inner side of the outer soft elbow pipe 112 during operation is provided with two traction rope threading holes 1123,

[0051] The outer cutting head 113 or the distal end of the outer soft elbow pipe 112 is provided with a U-shaped through hole for installing the traction rope 2, which is provided with two outlets at both ends, respectively, penetrating the surface, forming a through hole structure with a U-shaped path, and the traction rope 2 passes through the U-shaped through hole and then passes through the traction rope threading hole 1123 in turn, and is connected with the adjusting mechanism of the holding part 5. By setting the traction rope 2 to slide in the U-shaped through hole, the uniform force of the two traction ropes 2 can be ensured.

[0052] In some specific embodiments, the U-shaped through hole is arranged on the outer cutting head 113, as shown in Figure 6 As shown, the outer cutting head 113 is provided with a U-shaped suture mounting hole 1132, and the two ends of the U-shaped suture mounting hole 1132 are provided with threading holes 1133. This design can facilitate installation and make the force point close to the distal end for easy adjustment.

[0053] As shown in Figure 9 The traction rope 2 can be divided into a movable section 21 arranged in the U-shaped through hole, and the two sections of the traction rope 2 are provided with fixed ends 25 connected with the adjusting mechanism of the holding part 5, the threading section 22 near the end of the movable section 21 is arranged in the threading hole 1133, and the threading section 22 and the fixed end 25 are provided with a connecting section 23, the connecting section 23 is provided with a protective sleeve 24 outside, the protective sleeve 24 is arranged outside the outer tube 11, further, the outer tube 11 is provided with a groove for installing the protective sleeve 24, the protective sleeve 24 is a stainless steel tube, and the traction rope 2 is a high-strength metal wire, which can be a stainless steel wire or a nickel-titanium wire.

[0054] Because the strength of the soft shaft is lower than that of the rigid shaft, in order to avoid the falling and breaking of the inner cutter head, and more importantly, the length and position of the inner hose section 122 need to be matched with the bending angle and radius of the outer tube, so as to avoid the failure and damage of the inner hose section 122 during high-speed rotation, based on this, in some embodiments, as shown in Figure 8 the outer cutting cutter head 113 is provided with a fixed buckle installation groove 1135, the inner cutting cutter head 123 is provided with an annular fixed groove 1233 at the proximal end portion 1232, and the fixed buckle installation groove 1135 is provided with a fixed buckle 4, the fixed buckle 4 includes an arc-shaped main body end 41, and the two sides of the arc-shaped main body end 41 are provided with fixed pin ends 42 matched with the annular fixed groove 1233. At the same time, such design can avoid the breaking of the inner hose section 122 to make the cutter head lose stability and ensure that no secondary damage is caused. At the same time, the inner hose section 122 and the bending position can be fixed to ensure the best combination.

[0055] In one embodiment, as shown in Figure 2 the high-speed bending planer adopts a double-bending structure design, which provides more flexible operation angles and ranges. The outer tube 11 and the inner tube 12 are both provided with corresponding double-bending structures;

[0056] The bending section of the outer tube 11 can be a combination of a fixed bending tube section and an adjustable soft bending tube section. The fixed bending tube section is located at one end close to the holding part, ensuring that the planer has sufficient rigidity and support force at the basic angle. The adjustable soft bending tube section is located at the distal end, allowing the operator to adjust through the handle during the operation to realize multi-angle and multi-directional operation; the design of the inner tube 12 is matched with the outer tube 11, and the bending section thereof is composed of a hose section.

[0057] Further, as shown in Figure 2 the outer tube of the distal bending 100 adopts a bendable spring hose, and the proximal bending 200 adopts a rigid tube bending.

[0058] The high-speed bending planer in the above embodiment is also provided with a traction adjusting mechanism for controlling the bending angle of the adjustable distal bending 100. The mechanism is connected with the traction rope 2 through the rotation or sliding adjusting device on the holding part 5. One end of the traction rope 2 is fixed at the distal end of the outer cutting cutter head 113 or the outer soft bending tube 112, and the other end is connected with the adjusting device. The traction rope passes through the U-shaped through hole 1123 from the bending section of the outer tube, realizing the uniformity of stress during double-bending operation.

[0059] The high-speed bending planer knife with the double-bending structure can adapt to complex surgical environments, especially in narrow or difficult-to-access surgical areas, significantly improving the flexibility and accuracy of surgery. The combination of the double-bending structure and the adjusting mechanism makes the planer knife system more stable and flexible during intraoperative operation, and the adjustable mirror-under bending angle at the distal end can improve the operation space and comfort, reduce the dependence on the surgical channel for the doctor, and avoid damage to healthy bone tissue, thereby improving the efficiency and safety of surgery.

[0060] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. High speed bending planer tool, characterized in that, The utility model relates to a kind of curved planer knives, including: A holding part is configured to facilitate an operator to operate and control the hand-held part of the curved planer knife. An insertion part extends from the holding part, the insertion part includes an inner tube and an outer tube, the inner tube is movably arranged in the outer tube, the insertion part is provided with a curved section. The outer tube includes a curved section and a straight section, the curved section of the outer tube is a soft elbow pipe. The inner tube includes a curved section and a straight section, the curved section of the inner tube is a soft elbow pipe, the outer surface of the soft elbow pipe is provided with a winding layer, the inner tube is connected with a torque transmission element / assembly, and the torque transmission element / assembly is connected for driving the inner tube to rotate. A cutting part includes an outer cutting bit and an inner cutting bit, the outer cutting bit is arranged at the distal end of the outer tube, and the inner cutting bit is arranged at the distal end of the inner tube. A fixed buckle mounting groove is formed on the outer cutting bit, the proximal end of the inner cutting bit is provided with an annular fixing groove, a fixed buckle is arranged in the fixed buckle mounting groove, the fixed buckle includes an arc-shaped main body end, and fixed bolt ends are arranged on both sides of the arc-shaped main body end and cooperated with the annular fixing groove. A U-shaped through hole for installing a traction rope is arranged on the distal end of the outer cutting bit or the outer soft elbow pipe. The through hole is provided with two outlets at both ends, forming a through hole structure with a U-shaped path, and the traction rope passes through the U-shaped through hole and is then connected with the adjusting mechanism of the holding part. The curved section of the outer tube close to the cutting part is a soft elbow pipe. The soft elbow pipe is in the shape of a circular tube, and spring grooves are uniformly arranged on both sides of the soft elbow pipe. A traction rope threading hole is arranged on the outer soft elbow pipe, and a traction rope is arranged in the traction rope threading hole.

2. A high speed bending tool according to claim 1, characterized in that The insertion part is provided with two curved sections in opposite directions.

3. A high speed bending tool according to claim 1 or 2, characterized in that The curved section of the inner tube is an inner hose section, which includes a plurality of inner hose intermediate parts and a distal end connector and a proximal end connector arranged at both ends of the inner hose section. The inner hose intermediate parts are in the shape of a circular ring and connected end to end. The distal end of the inner hose intermediate part is provided with two distal end connecting grooves arranged in a circumferential direction, and a distal end fixing boss is arranged in the distal end connecting groove. The distal end of the distal end fixing boss is in the shape of a circle, and the connection part between the distal end fixing boss and the inner hose intermediate part is in the shape of a trapezoid gradually increasing from the distal end to the proximal end. The proximal end of the inner hose intermediate part is provided with a proximal end connecting boss cooperated with the distal end connecting groove. The distal end connector and the proximal end connector are connected with the inner hose intermediate part through the same connection structure. The inner hose intermediate part, the distal end connector and the proximal end connector are all provided with a bending allowance groove on the side close to each other.

4. A high speed bending tool according to claim 1 or 2, characterized in that The winding layer is composed of a plurality of stainless steel braided flexible shafts, and the winding direction is determined according to the rotating direction of the inner tube, which is tightened with the rotating inner tube.

5. A high speed bending tool according to claim 1 or 2, characterized in that The winding layer is composed of a plurality of stainless steel braided flexible shafts, and the winding direction is determined according to the rotating direction of the inner tube, which is tightened with the rotating inner tube.

6. A high speed bending tool according to claim 1 or 2, characterized in that The inner cutting head is provided with a plurality of inner protruding cutting edges for cutting, and the outer cutting head is provided with a plurality of outer protruding cutting edges for cutting.

7. A high speed bending tool according to claim 1 or 2, characterized in that The traction rope is provided with a protective sleeve outside the outer tube.

8. A high speed bending tool system characterized in that, The high-speed bending planer knife according to any one of claims 1-7, further comprising a power source for driving the planer knife, the power source being connected with the inner tube through torque transmission elements / assembly in the holding part to provide rotating power for the inner tube.

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