An adjustable rongeur

Abstract

The application provides an adjustable rongeur, and belongs to the technical field of medical instruments. The adjustable rongeur comprises a first main body, a second main body rotatably connected to the inner side of the first main body, and an adjusting assembly for adjusting the angle of the rongeur head, which is connected to the first main body and the second main body. The positioning nail and the spring sheet are arranged, the rotation of the positioning nail drives the spring sheet to stretch, the rotation of the rongeur head can change the clamping angle, and the situation that the conventional rongeur cannot be used can be coped with. Meanwhile, after the rongeur head is adjusted to the corresponding angle, the first main body and the second main body deflect as a whole to the corresponding direction, so that the field of view of the endoscope or the microscope is not blocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an adjustable bone rong. BACKGROUND

[0002] Bone rong has a wide range of applications in surgery, especially in orthopedic surgery, it is mainly used in fracture reduction, joint replacement, spinal surgery and other fields, in these surgeries, the doctor needs to accurately cut and break the bone, so as to carry out subsequent repair and reconstruction. The traditional bone rong is designed as an integrated head and handle, which cannot be bent or rotated. It is difficult to access the target area, and additional soft tissue needs to be pulled to expose the surgical field, which increases the trauma to the patient. Moreover, the overall size of the bone rong is large enough to block the view of the endoscope or microscope, affecting the accuracy of the operation. Therefore, the present application provides an adjustable bone rong to meet the needs. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an adjustable bone rong to solve the problem that the head of the existing bone rong cannot be adjusted in angle, affecting the operation.

[0004] To solve the above technical problems, the present application provides the following technical scheme:

[0005] An adjustable bone rong, comprising a first body, a second body rotatably connected to the inner side of the first body; a rong head rotatably mounted on the first body and the second body; an adjusting assembly connecting the first body and the rong head, the second body and the rong head, the adjusting assembly adjusting the angle of the rong head.

[0006] Optionally, the adjusting assembly comprises positioning nails inserted into the top ends of the first body and the second body, and the outer sides of the positioning nails on both sides are fixedly connected with protrusions.

[0007] Optionally, the outer sides of the protrusions on both sides are sleeved with rong heads, and the inner side of the positioning nail is inserted with a limiting block.

[0008] Optionally, the top of the limiting block is fixedly connected with a connecting frame, and the two sides of the limiting block are fixedly connected with arc plates.

[0009] Optionally, the bottom of the limiting block is fixedly connected with a spring sheet, the bottom end of the spring sheet is fixedly connected with a limiting rod, one side of the first body and the second body is fixedly connected with a hook frame, and the limiting rod is connected to the inner side of the hook frame.

[0010] Optionally, one side of the connecting frame is fixedly connected with a guide wire, the guide wire is slidingly connected in the interior of the first body and the second body, and the interior of the first body and the second body is slidingly connected with a sliding block.

[0011] Optionally, one side of the sliding block is fixedly connected with an adjusting rod, one end of the adjusting rod is fixedly connected with a reset frame.

[0012] Optionally, one side of the reset frame is fixedly connected with a pressing plate, the inner sides of the first body and the second body are fixedly connected with a through hole plate, and the adjusting rod is slidingly connected in the through hole plate.

[0013] Optionally, both sides of the through hole plate are provided with thinning sections, and one side of the sliding block is rotatably connected with an adjusting screw.

[0014] Optionally, the outer side of the adjusting screw is threadedly connected with an adjusting block, the adjusting block is slidingly connected in the first body and the second body, one side of the sliding block is fixedly connected with a hand limiting block, the hand limiting block is slidingly connected on the outer side of the first body and the second body, and the adjusting block is slidingly connected on one side of the hand limiting block.

[0015] Compared with the prior art, the present application has at least the following advantages:

[0016] In the above scheme, by arranging the positioning nail and the spring sheet, the positioning nail is rotatably inserted into the top end of the first body, and the jaw and the positioning nail are limited by the convex strips, and the edge corners of the jaw and the first body near the connecting frame are provided with rounded corners, so that the jaw can be rotated to one side, and the maximum rotation angle is ninety degrees. When the jaw is rotated, the positioning nail is synchronously rotated, and the rotation of the positioning nail drives the spring sheet to stretch. The rotation of the jaw can change the clamping angle, so that the situation that the conventional rongeur cannot be used can be coped with. Meanwhile, after the jaw is adjusted to the corresponding angle, the first body and the second body will be deflected in the corresponding direction as a whole, so that the field of view of the endoscope or microscope is not blocked.

[0017] By arranging the adjusting rod and the adjusting block, the pressing plate is pressed downward, the reset frame drives the adjusting rod to descend, and the sliding block is also driven to descend, so that the two side guide wires are pulled to drive the jaws on the two sides to rotate. In this way, the rotation of the jaws and the rotation angle of the jaws can be controlled by one hand, so that the operator can control the jaws, and the difficulty of controlling the jaws is reduced. When precise adjustment of the rotation angle of the jaws is required, the adjusting block can be slidingly connected on one side of the hand limiting block by rotating the adjusting screw, so that the rotation angle of the jaws is controlled by pulling the guide wire by the adjusting block. The adjusting block and the hand limiting block are adjusted by threads, so that the angle of the jaws can be kept more. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0019] Figure 1 is a schematic view of the three-dimensional structure of the adjustable rongeur;

[0020] Figure 2 is a schematic view of the enlarged structure of part A of Figure 1

[0021] Figure 3 is a schematic view of the partial structure of the adjustable rongeur;

[0022] Figure 4 is a schematic view of the enlarged structure of part B of Figure 3

[0023] Figure 5 is a schematic view of the exploded structure of the adjustable rongeur;

[0024] Figure 6 is a schematic view of the enlarged structure of part C of Figure 5

[0025] Figure 7 is a schematic view of the enlarged structure of part D of Figure 5

[0026] Figure 8 is a schematic view of the partial structure of the positioning nail of the adjustable rongeur.

[0027] Reference signs:

[0028] 1. first body; 2. second body; 3. positioning nail; 31. limiting groove; 32. through groove; 4. convex strip; 5. jaw; 51. mounting hole; 6. limiting block; 7. connecting frame; 8. arc plate; 9. elastic sheet; 10. limiting rod; 11. hook frame; 12. guide wire; 13. sliding block; 14. adjusting rod; 15. reset frame; 16. pressing plate; 17. connecting hole plate; 171. round hole; 18. thinned section; 19. adjusting block; 20. hand limiting block; 21. adjusting screw rod; 22. sliding groove.

[0029] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration and is not intended to limit the present application to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0030] The adjustable rongeur provided by the present application is described in detail below in combination with the drawings and specific embodiments. It is to be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be adopted by those skilled in the art to implement some known technologies; and the drawings are only used to more specifically describe the embodiments and are not intended to specifically limit the present application.​​​​

[0031] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0032] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0033] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0034] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an adjustable bone-crushing forceps, including a first body 1, with a second body 2 rotatably connected to the inner side of the first body 1. The first body 1 and the second body 2 are the handle and joint portion of a conventional single-joint bone-crushing forceps. An adjustment component is used to adjust the angle of the forceps head, and the adjustment component is connected to the first body 1 and the second body 2 respectively, as shown. Figure 6As shown, the adjusting assembly comprises a positioning pin 3 rotatably inserted at the top end of the first body 1 and the second body 2, the outer side of the positioning pin 3 is fixedly connected with a convex strip 4, the outer side of the two convex strips 4 is sleeved with a jaw 5, the inner side of the jaw 5 is provided with a mounting hole 51, the inner profile of the mounting hole 51 is matched with the outer profile of the positioning pin 3 and the convex strip 4, the jaw 5 is replaceable, by replacing the jaw 5 with different shapes, it can be applied in different use scenarios, improving the flexibility during use. Figure 8 As shown), the top of the limiting block 6 is fixedly connected with a connecting frame 7, and the connecting frame 7 is in close contact with the jaw 5. The two sides of the limiting block 6 are fixedly connected with an arc plate 8, the curvature of the arc plate 8 is matched with the outer profile of the convex strip 4, and the maximum descending height of the limiting block 6 in the limiting groove 31 of the positioning pin 3 is limited by the arc plate 8. The bottom of the limiting block 6 is fixedly connected with an elastic sheet 9, the elastic sheet 9 is an elastic structure as a whole, the two ends of the elastic sheet 9 are vertically arranged, and the middle part of the elastic sheet 9 is a wave-shaped structure. One end of the positioning pin 3 close to the limiting block 6 is provided with a through groove 32 (as shown) matched with the width of the vertical end of the elastic sheet 9. The through groove 32 on the positioning pin 3 is communicated with the limiting groove 31, and the width of the through groove 32 is smaller than that of the limiting groove 31. The bottom end of the elastic sheet 9 is fixedly connected with a limiting rod 10. One side of the first body 1 is fixedly connected with a hook frame 11, the inner profile of the hook frame 11 is semi-circular, the inner diameter of the hook frame 11 is matched with the outer diameter of the limiting rod 10, and the limiting rod 10 is clamped on the inner side of the hook frame 11. Figure 8

[0036] By setting the positioning pin 3 and the limiting block 6, the detachable and replaceable setting of the jaw 5 can greatly increase the flexibility of use, and the combination of the jaw 5 with different shapes, the first body 1 and the second body 2 can greatly reduce the production cost. When the rongeur is disinfected, the jaw 5 is detached to avoid the disinfection dead angle. When the jaw 5 is installed, the positioning pin 3 is inserted into the top end of the first body 1 from the inner side of the first body 1, the jaw 5 is sleeved on the outer side of the positioning pin 3, the limiting rod 10 is clamped on the inner side of the hook frame 11, the connecting frame 7 is pulled upward to stretch the elastic sheet 9, the vertical section of the elastic sheet 9 close to the positioning pin 3 enters the limiting groove 31 through the through groove 32 of the positioning pin 3, the limiting block 6 is in close contact with the jaw 5, the connecting frame 7 is released at this time, the elastic sheet 9 is contracted to drive the limiting block 6 to descend, so that the limiting block 6 enters the limiting groove 31. Since the size of the limiting block 6 is greater than the width of the through groove 32, the limiting block 6 cannot slide out of the through groove 32. After the arc plate 8 is in close contact with the convex strip 4, the limiting block 6 stops descending. The jaw 5 is limited by the limiting block 6, and the installation of the jaw 5 is completed. The jaw 5 on the other side is the same. When disassembling, the jaw 5 can be disassembled by reversing the above steps;

[0037] ​Because the positioning nail 3 is rotatably inserted at the top end of the first main body 1, and the jaw 5 and the positioning nail 3 are limited by the convex strip 4, and the edge corner of the jaw 5 and the first main body 1 close to the connecting frame 7 is round, the jaw 5 can rotate to one side (the jaw 5 can rotate around the shaft of the mounting hole 51), and the maximum rotation angle is ninety degrees. When the jaw 5 rotates, the positioning nail 3 rotates synchronously, and the rotation of the positioning nail 3 drives the spring piece 9 to stretch, so that the jaw 5 can be reset through the contraction of the spring piece 9. The rotation of the jaw 5 can change the clamping angle, which can cope with the situation that the conventional bone rongeur cannot be used. At the same time, after the jaw 5 is adjusted to the corresponding angle, the first main body 1 and the second main body 2 will deflect to the corresponding direction as a whole, so as not to block the field of view of the endoscope or microscope.

[0038] As shown in Figures 2 to 7 , one side of the connecting frame 7 is fixedly connected with one end of the guide wire 12, and the other end of the guide wire 12 is connected with the adjusting block 19. The guide wire 12 is a memory metal, and the two guide wires 12 are respectively slid in the interiors of the first main body 1 and the second main body 2, so as to limit and guide the guide wire 12, and make the guide wire 12 slide in the interiors of the first main body 1 and the second main body 2 to the corresponding direction. As shown in Figure 4 and Figure 7As shown, the first body 1 and the second body 2 are slidably connected with a sliding block 13, the sliding block 13 is L-shaped, one side of the sliding block 13 is fixedly connected with an adjusting rod 14, one end of the adjusting rod 14 is fixedly connected with a reset frame 15, the reset frame 15 is a whole "V"-shaped elastic structure, and the first body 1 and the second body 2 can be reset to an unoccluded state through the elastic stretching of the reset frame 15, so as to facilitate the rapid recovery of the rongeur to the opening and closing state of the jaw. The side surface of the reset frame 15 is fixedly connected with a pressing plate 16, the pressing plate 16 is an arc-shaped structure, and the pressing plate 16 is arranged at the thumb of the hand of the operator after holding, so as to facilitate the contact between the thumb and the pressing plate 16 during use. The inner side of the first body 1 and the second body 2 is fixedly connected with a through hole plate 17, the adjusting rod 14 is slidably connected in the through hole plate 17, the surface of the through hole plate 17 is provided with a plurality of circular holes 171, the plurality of circular holes 171 are communicated with each other, the size of the communication part of the circular hole is smaller than the diameter of the circular hole, one end of the through hole plate 17 close to the adjusting rod 14 is provided with an opening (the size of the opening is smaller than the diameter of the circular hole), and the two sides of the through hole plate 17 are provided with a thinning section 18. The setting of the thinning section 18 enables the part of the through hole plate 17 provided with the circular hole to be opened and closed under the deformation of the thinning section 18. One side of the sliding block 13 is rotatably installed with an adjusting screw 21, the outer side of the adjusting screw 21 is threadedly connected with an adjusting block 19, the adjusting block 19 is slidably installed in the first body 1 and the second body 2, one side of the sliding block 13 is fixedly connected with a hand limiting block 20, the side profile of the hand limiting block 20 away from the adjusting screw 21 is matched with the profile of the operator's web space, so as to improve the comfort degree during holding by the operator, one side of the hand limiting block 20 is provided with a scale line for measuring the position of the adjusting block 19, so as to facilitate the precise control of the position of the adjusting block 19, the hand limiting block 20 is slidably connected to the outer side of the first body 1 and the second body 2, and the adjusting block 19 is slidably connected to one side of the hand limiting block 20. Specifically, the first body 1 and the second body 2 are provided with a sliding groove 22, and the sliding block 13 and the adjusting block 19 are slidably installed in the sliding groove 22.

[0039] By setting the adjusting rod 14 and the adjusting block 19, the guide wire 12 can pull the connecting frame 7 to rotate the positioning nail 3, so as to rotate the forceps head 5, so that the rotation angle of the forceps head 5 can be controlled, by holding the first body 1 and the second body 2, the thumb is placed on the top of the pressing plate 16, the pressing plate 16 is pressed downward, the reset frame 15 drives the adjusting rod 14 to descend, the adjusting rod 14 exerts pressure on the connecting hole plate 17 when descending, the thinning section 18 deforms to make the connecting hole plate 17 open, so that the adjusting rod 14 can descend in the inside of the connecting hole plate 17, and the sliding block 13 is lowered, the sliding block 13 drives the adjusting block 19 to descend, and then the two guide wires 12 are pulled to make the two forceps heads 5 rotate, so that the rotation of the forceps head 5 and the rotation angle of the forceps head 5 can be controlled by one hand, and the forceps head 5 is convenient for the operator to control, and the control difficulty of the forceps head 5 is reduced. When precise adjustment of the rotation angle of the forceps head 5 is required, the adjusting block 19 can be slid on one side of the hand limiting block 20 by rotating the adjusting screw 21, so that the guide wire 12 is pulled by the adjusting block 19 to control the rotation angle of the forceps head 5, the adjusting block 19 and the hand limiting block 20 are adjusted through threads, so that the forceps head 5 can keep more angles, the forceps head 5 can be kept at the required angle through the scale on one side of the hand limiting block 20, and the two forceps heads 5 can be kept at the same position, it should be noted that when the forceps head 5 is rotated to the maximum angle, i.e. ninety degrees, the first body 1 and the second body 2 need to be kept in the vertical state to clamp the bone when the rongeur is operated, so as to avoid excessive force to push the rongeur when clamping, which causes the force required to stretch the spring 9 to exceed, and the angle of the forceps head 5 changes when the spring 9 is stretched, and the above situation does not easily occur when the bone is cut.

[0040] The working principle of the technical scheme provided by the application is as follows:

[0041] By holding the first body 1 and the second body 2, the thumb is placed on the top of the pressing plate 16, the pressing plate 16 is pressed downward, the reset frame 15 drives the adjusting rod 14 to descend, the adjusting rod 14 descends in the inside of the connecting hole plate 17, at the same time, the sliding block 13 is driven to descend, and then the two side guide wires 12 are pulled to make the two side forceps 5 rotate, the positioning nails 3 rotate synchronously when the forceps 5 rotate, the rotation of the positioning nails 3 drives the elastic sheet 9 to stretch, the rotation of the forceps 5 can change the clamping angle, and the situation that the conventional rongeur cannot be used can be coped with, and at the same time, after the forceps 5 are adjusted to the corresponding angle, the first body 1 and the second body 2 deflect to the corresponding direction as a whole, so that the field of view of the endoscope or the microscope is not blocked, so that the rotation of the forceps 5 and the rotation angle of the forceps 5 can be controlled by one hand, the forceps 5 are convenient for the operator to control, and the control difficulty of the forceps 5 is reduced; when the rotation angle of the forceps 5 needs to be precisely adjusted, the adjusting screw 21 is rotated to make the adjusting block 19 slide on one side of the hand limiting block 20, so that the guide wire 12 is pulled by the adjusting block 19 to control the rotation angle of the forceps 5, the adjusting block 19 and the hand limiting block 20 are adjusted through threads, so that the forceps 5 can keep more angles, the scale on one side of the hand limiting block 20 can make the forceps 5 be at the required angle, and the two forceps 5 can be kept at the same position.

[0042] The present application encompasses any alternatives, modifications, equivalent methods and solutions made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, the specific details are described in detail in the above preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0043] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can also be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. An adjustable bone-crushing forceps, characterized in that, It includes a first body, a second body rotatably connected to the inner side of the first body, and pliers heads rotatably mounted on the first body and the second body; An adjustment component connects the first body and the pliers head, and the second body and the pliers head; the adjustment component adjusts the angle of the pliers head. The adjustment assembly includes positioning pins inserted into the top of the first body and the second body, and protrusions are fixedly connected to the outer sides of the positioning pins on both sides. Pliers are fitted onto the outer sides of the protrusions on both sides, and a limit block is inserted into the inner side of the positioning pin. The positioning pin has a limiting groove that matches the outer contour of the limiting block. A connecting frame is fixedly connected to the top of the limiting block, and the connecting frame fits against the pliers head. Arc plates are fixedly connected to both sides of the limiting block, and the curvature of the arc plates matches the outer contour of the protrusion. A spring piece is fixedly connected to the bottom of the limiting block. The two ends of the spring piece are vertically set, and the middle part of the spring piece has a wavy structure. A through groove that matches the width of the vertical end of the spring piece is opened at one end of the positioning pin near the limiting block. The through groove on the positioning pin is connected to the limiting groove. The width of the through groove is smaller than the width of the limiting groove. A limiting rod is fixedly connected to the bottom end of the spring piece. A hook frame is fixedly connected to one side of the first body and the second body. The limiting rod is snapped into the inner side of the hook frame. One side of each of the two connecting frames is fixedly connected to a guide wire, and the other end of the guide wire is connected to an adjustment block. The guide wires on both sides are slidably connected inside the first body and the second body, respectively. By adjusting the position of the adjusting block, the guidewire slides in the corresponding direction inside the first and second bodies, thereby rotating the clamp head.

2. The adjustable bone-biting forceps according to claim 1, characterized in that, The first body and the second body are internally connected by sliders.

3. The adjustable bone-biting forceps according to claim 2, characterized in that, An adjusting rod is fixedly connected to one side of the slider, and a reset frame is fixedly connected to one end of the adjusting rod.

4. The adjustable bone-biting forceps according to claim 3, characterized in that, A pressing plate is fixedly connected to one side of the reset frame, and a connecting plate is fixedly connected to the inner side of the first main body and the second main body. The adjusting rod is slidably connected inside the connecting plate.

5. The adjustable bone-biting forceps according to claim 4, characterized in that, Thinning sections are provided on both sides of the connecting plate, and an adjusting screw is rotatably connected to one side of the slider.

6. The adjustable bone-biting forceps according to claim 5, characterized in that, The adjusting screw is threaded to an adjusting block on its outer side. The adjusting block is slidably connected inside the first body and the second body. A hand limiting block is fixedly connected to one side of the slider. The hand limiting block is slidably connected to the outer side of the first body and the second body. The adjusting block is slidably connected to one side of the hand limiting block.

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