Adjustable rongeur
By designing adjustable bone-biting forceps, the mast head is rotated 90 degrees by using the coordination of positioning nails and shrapnel, and one-handed control and precise angle adjustment are achieved through the adjustment component, the problem that the traditional bone-biting forceps head cannot be adjusted is solved, and the accuracy and flexibility of surgical operations are improved.
Patent Information
- Application Number
- CN202510598030.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2045-05-09
AI Technical Summary
The pincer head of traditional bone biting forceps cannot adjust the angle, which affects the accuracy of surgical operations and obstructs the endoscopic or microscopic field of view.
An adjustable bone biting forceps are designed to achieve 90 degrees of rotation of the clamp head through the coordination of positioning nails and shrapnel, and one-handed control and precise angle adjustment are achieved through the adjustment component.
It solves the problem of difficulty in adjusting the angle of the forceps head, reduces the obstruction of the endoscopic or microscopic field of view, and improves the accuracy and flexibility of surgical operations.
Smart Images
Figure CN120501474A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical instruments, and in particular to an adjustable rongeur. Background Art
[0002] Rongeurs are widely used in surgery, especially in orthopedic surgery. They are mainly used in the fields of fracture reduction, joint replacement, spinal surgery, etc. In these surgeries, doctors need to accurately cut and crush bones for subsequent repair and reconstruction. The head and handle of traditional rongeurs are designed as an integrated whole and cannot be bent or rotated. In difficult-to-reach target areas, additional soft tissue traction is required to expose the surgical field, which increases patient trauma. In addition, the overall size of the rongeurs is large and easily blocks the field of view of the endoscope or microscope, affecting the accuracy of the operation. Therefore, the present application provides an adjustable rongeur to meet the needs. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide an adjustable rongeur to solve the problem that the angle of the rongeur head of the existing rongeur cannot be adjusted, thereby affecting the surgical operation.
[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:
[0005] An adjustable bone-holding forceps includes a first main body, the inner side of which is rotatably connected to a second main body; a clamp head is rotatably mounted on the first and second bodies; an adjustment component connects the first main body and the clamp head, and the second main body and the clamp head, and the adjustment component adjusts the angle of the clamp head.
[0006] Optionally, the adjustment component includes positioning pins inserted into the top ends of the first body and the second body, and outer sides of the positioning pins on both sides are fixedly connected with convex strips.
[0007] Optionally, the outer sides of the convex strips on both sides are sleeved with pliers heads, and the inner sides of the positioning pins are inserted with limiting blocks.
[0008] Optionally, a connecting frame is fixedly connected to the top of the limit block, and arc plates are fixedly connected to both sides of the limit block.
[0009] Optionally, a spring piece is fixedly connected to the bottom of the limit block, the bottom end of the spring piece is fixedly connected to a limit rod, one side of the first body and the second body is fixedly connected to a hook rack, and the limit rod is clamped on the inner side of the hook rack.
[0010] Optionally, a guide wire is fixedly connected to one side of the connecting frame, the guide wire is slidably connected to the inside of the first body and the second body, and a slider is slidably connected to the inside of the first body and the second body.
[0011] Optionally, one side of the slider is fixedly connected to an adjusting rod, and one end of the adjusting rod is fixedly connected to a reset frame.
[0012] Optionally, a pressing plate is fixedly connected to one side of the reset frame, a connecting hole plate is fixedly connected to the inner sides of the first body and the second body, and the adjustment rod is slidably connected to the inside of the connecting hole plate.
[0013] Optionally, thinning sections are provided on both sides of the perforated plate, and an adjusting screw is rotatably connected to one side of the slider.
[0014] Optionally, the outer side of the adjusting screw is threadedly connected to an adjusting block, and the adjusting block is slidably connected to the inside of the first body and the second body. One side of the slider is fixedly connected to a hand limit block, and the hand limit block is slidably connected to the outer side of the first body and the second body, and the adjusting block is slidably connected to one side of the hand limit block.
[0015] Compared with the prior art, the present invention has at least the following beneficial effects:
[0016] In the above scheme, by setting a positioning pin and a spring piece, the positioning pin is rotatably inserted into the top end of the first main body, and the pliers head and the positioning pin are limited to each other by the convex strip, and the corners of the pliers head and the first main body close to the connecting frame are rounded, so that the pliers head can be rotated to one side, and the maximum rotation angle is ninety degrees. When the pliers head rotates, the positioning pin rotates synchronously, and the rotation of the positioning pin will drive the spring piece to stretch. The rotation of the pliers head can change the clamping angle, which can cope with situations where conventional bone-holding pliers cannot be used. At the same time, after the pliers head is adjusted to the corresponding angle, the first main body and the second main body will deflect in the corresponding direction as a whole, so as not to block the field of view of the endoscope or microscope.
[0017] By setting an adjusting rod and an adjusting block, pressing the pressing plate downward causes the reset frame to drive the adjusting rod to descend, and at the same time drives the slider to descend, thereby pulling the guide wires on both sides to cause the pliers heads on both sides to rotate, so that the rotation of the pliers heads and the adjustment of the rotation angle of the pliers heads can be controlled with one hand, which is convenient for the surgeon to control the pliers heads and reduces the difficulty of controlling the pliers heads. When the rotation angle of the pliers heads needs to be precisely adjusted, the adjusting screw can be rotated to make the adjusting block slide on one side of the hand limit block, so that the guide wire is pulled by the adjusting block to control the rotation angle of the pliers heads. The adjusting block and the hand limit block are adjusted by threads, so that the pliers heads can maintain more angles. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.
[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an adjustable rongeur;
[0020] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;
[0021] Figure 3 This is a cross-sectional view of the local structure of the adjustable rongeur;
[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part B;
[0023] Figure 5 This is a schematic diagram of the explosion structure of the adjustable rongeur;
[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of part C;
[0025] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of part D;
[0026] Figure 8 This is a schematic diagram of the partial structure of the positioning pin of the adjustable bone rongeur.
[0027] Reference numerals:
[0028] 1. First body; 2. Second body; 3. Positioning pin; 31. Limiting groove; 32. Through groove; 4. Raised strip; 5. Clamp head; 51. Mounting hole; 6. Limiting block; 7. Connecting frame; 8. Arc plate; 9. Shrapnel; 10. Limiting rod; 11. Hook frame; 12. Guide wire; 13. Slider; 14. Adjusting rod; 15. Reset frame; 16. Pressing plate; 17. Connecting hole plate; 171. Round hole; 18. Thinning section; 19. Adjusting block; 20. Hand limiting block; 21. Adjusting screw; 22. Sliding groove.
[0029] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION
[0030] The following describes in detail an adjustable rongeur provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative methods for implementing known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.
[0031] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).
[0032] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.
[0033] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.
[0034] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.
[0035] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an adjustable rongeur, comprising a first body 1, the inner side of which is rotatably connected to a second body 2, the first body 1 and the second body 2 being the handle and joint parts of a conventional single-joint rongeur. An adjustment component is used to adjust the angle of the rongeur's jaws, and the adjustment component is connected to the first body 1 and the second body 2, respectively, as shown in FIG. Figure 6As shown, the adjustment component includes a positioning pin 3 that is rotatably inserted into the top of the first body 1 and the second body 2. The outer side of the positioning pin 3 is fixedly connected to a convex strip 4. The outer sides of the convex strips 4 on both sides are sleeved with a clamp head 5. The inside of the clamp head 5 is provided with a mounting hole 51. The inner contour of the mounting hole 51 is adapted to the outer contour of the positioning pin 3 and the convex strip 4. The clamp head 5 is a replaceable setting. By replacing the clamp head 5 of different shapes, it can be used in different usage scenarios, thereby improving the flexibility of use. A limiting block 6 is inserted into the positioning pin 3, and a limiting groove 31 (such as Figure 8 As shown), the top of the limit block 6 is fixedly connected to a connecting frame 7, and the connecting frame 7 fits with the pliers head 5. Arc plates 8 are fixedly connected to both sides of the limit block 6. The curvature of the arc plate 8 matches the outer contour of the convex strip 4. The arc plate 8 limits the maximum descending height of the limit block 6 in the limiting groove 31 of the positioning pin 3. A spring piece 9 is fixedly connected to the bottom of the limit block 6. The spring piece 9 is an elastic structure as a whole. The two ends of the spring piece 9 are vertically arranged. The middle part of the spring piece 9 is a wavy structure. The end of the positioning pin 3 close to the limit block 6 is provided with a through groove 32 (as shown in FIG. 1 ) that matches the width of the vertical end of the spring piece 9. Figure 8 As shown), the through slot 32 on the positioning pin 3 is connected to the limiting slot 31, the width of the through slot 32 is smaller than the width of the limiting slot 31, the bottom end of the spring piece 9 is fixedly connected to the limiting rod 10, and one side of the first body 1 is fixedly connected to the hook rack 11, the inner side profile of the hook rack 11 is semicircular, the inner diameter of the hook rack 11 coincides with the outer diameter of the limiting rod 10, and the limiting rod 10 is clamped on the inner side of the hook rack 11.
[0036] By setting the positioning pin 3 and the limit block 6, the detachable and replaceable setting of the pliers head 5 can greatly increase the flexibility of use. At the same time, the pliers head 5 of various forms, combined with the first body 1 and the second body 2, can greatly reduce the production cost. When the bone-holding forceps are disinfected, the sterilization dead corner can be avoided by removing the pliers head 5. When the pliers head 5 is installed, the positioning pin 3 and the inner side of the first body 1 are inserted into the top of the first body 1, and the pliers head 5 is sleeved on the outer side of the positioning pin 3. After the time limit rod 10 is clamped on the inner side of the hook frame 11, the connecting frame 7 is pulled upward to stretch the shrapnel 9, so that The vertical section of the spring piece 9 close to the positioning pin 3 enters the limiting groove 31 through the through groove 32 of the positioning pin 3, and the limiting block 6 is fitted with the clamp head 5. At this time, the connecting frame 7 is loosened, and the spring piece 9 contracts 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 larger 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 fitted with the convex strip 4, the limiting block 6 stops descending, and the clamp head 5 is limited by the limiting block 6, thereby completing the installation of the clamp head 5. The same is true for the clamp head 5 on the other side. When disassembling, the clamp head 5 can be disassembled by reversing the above steps.
[0037] Since the positioning pin 3 is rotatably inserted into the top of the first main body 1, and the pliers head 5 and the positioning pin 3 are limited to each other by the convex strip 4, and the corners of the pliers head 5 and the first main body 1 close to the connecting frame 7 are rounded, so that the pliers head 5 can be rotated to one side (the pliers head 5 can be rotated around the axial direction of the mounting hole 51), and the maximum rotation angle is ninety degrees. When the pliers head 5 rotates, the positioning pin 3 rotates synchronously, and the rotation of the positioning pin 3 will drive the spring piece 9 to stretch, and then the pliers head 5 can be reset by the contraction of the spring piece 9. The rotation of the pliers head 5 can change the clamping angle, which can cope with situations where conventional bone clamps cannot be used. At the same time, after the pliers head 5 is adjusted to the corresponding angle, the first main body 1 and the second main body 2 will deflect in the corresponding direction as a whole, so as not to block the field of view of the endoscope or microscope.
[0038] like Figures 2 to 7 As shown, one end of the guide wire 12 is fixedly connected to one side of the connecting frame 7, and the other end of the guide wire 12 is connected to the adjustment block 19. The guide wire 12 is a memory metal. The guide wires 12 on both sides slide inside the first body 1 and the second body 2 respectively, thereby limiting the guide wire 12 and guiding it so that the guide wire 12 slides in the corresponding direction inside the first body 1 and the second body 2. Figure 4 and Figure 7As shown, a slider 13 is slidably connected to the interior of the first body 1 and the second body 2. The slider 13 is L-shaped. An adjustment rod 14 is fixedly connected to one side of the slider 13. One end of the adjustment rod 14 is fixedly connected to a reset frame 15. The reset frame 15 is an elastic structure in the shape of a "V". The elastic stretching of the reset frame 15 can reset the first body 1 and the second body 2 to an unengaged state, thereby facilitating the rapid restoration of the jaws of the bone rongeur to the open and closed state. A pressing plate 16 is fixedly connected to the side of the reset frame 15. The pressing plate 16 is an arc-shaped structure. The pressing plate 16 is set at the thumb of the operator's hand after grasping it, so that the thumb can contact the pressing plate 16 when the operator uses it. A connecting plate 17 is fixedly connected to the inner side of the first body 1 and the second body 2, and the adjusting rod 14 is slidably connected to the inside of the connecting plate 17. A plurality of circular holes 171 are provided on the surface of the connecting plate 17. The plurality of circular holes 171 are interconnected, and the size of the connecting part of the circular holes is smaller than the diameter of the circular holes. One end of the connecting plate 17 close to the adjusting rod 14 is open (the size of the opening is smaller than the diameter of the circular hole), and thinning sections 18 are provided on both sides of the connecting plate 17. The setting of the thinning section 18 enables the part of the connecting plate 17 with the circular holes to open and close under the deformation of the thinning section 18. An adjustment screw 21 is rotatably mounted on one side of the slider 13. The outer side of the adjustment screw 21 is threadedly connected to an adjustment block 19. The adjustment block 19 is slidably mounted inside the first and second bodies 1 and 2. A hand stop block 20 is fixedly connected to one side of the slider 13. The contour of the side of the hand stop block 20 away from the adjustment screw 21 matches the contour of the operator's tiger's mouth, thereby improving the operator's comfort when holding the device. A scale line is provided on one side of the hand stop block 20 for measuring the position of the adjustment block 19, facilitating precise control of the position of the adjustment block 19. The hand stop block 20 is slidably connected to the outer sides of the first and second bodies 1 and 2, and the adjustment block 19 is slidably connected to one side of the hand stop block 20. Specifically, a sliding groove 22 is provided on the first and second bodies 1 and 2, and the slider 13 and the adjustment block 19 are slidably mounted in the sliding groove 22.
[0039] By providing the adjusting rod 14 and the adjusting block 19, the guide wire 12 can pull the connecting frame 7 to rotate the positioning pin 3, thereby rotating the pliers head 5, so that the rotation angle of the pliers head 5 can be controlled. By holding the first body 1 and the second body 2, placing the thumb on the top of the pressing plate 16, pressing the pressing plate 16 downward, the reset frame 15 drives the adjusting rod 14 to descend. When the adjusting rod 14 descends, pressure is applied to the connecting hole plate 17, and the thinning section 18 is deformed to open the connecting hole plate 17, so that the adjusting rod 14 can be lowered inside the connecting hole plate 17, and at the same time drive the slider 13 to descend. The descent of the slider 13 drives the adjusting block 19 to descend, and then pulls the guide wires 12 on both sides to cause the pliers heads 5 on both sides to rotate, so that the rotation of the pliers head 5 and the adjustment of the rotation angle of the pliers head 5 can be realized with one hand, which is convenient for the operator to control the pliers head 5 and reduces the difficulty of regulating the pliers head 5. When it is necessary to precisely adjust the rotation angle of the pliers head 5, the adjusting screw 21 can be rotated to make the adjusting block 19 slide on one side of the hand limit block 20, so that the rotation angle of the pliers head 5 can be controlled by pulling the guide wire 12 through the adjusting block 19. The adjusting block 19 and the hand limit block 20 are adjusted through the thread, so that the pliers head 5 can maintain a wider angle. The scale on one side of the hand limit block 20 can make the pliers head 5 at the desired angle, and at the same time, the pliers heads 5 on both sides can be kept in the same position. It should be noted that when the pliers head 5 is rotated to the maximum angle, that is, ninety degrees, when operating the bone rongeur, the first body 1 and the second body 2 need to be in a vertical state to clamp the bone, so as to avoid pushing the bone rongeur with excessive force during clamping, which will exceed the force required for the stretching of the shrapnel 9, causing the angle of the pliers head 5 to change when the shrapnel 9 is stretched. The above situation is not easy to occur when cutting the bone.
[0040] The working principle of the technical solution provided by the present invention is as follows:
[0041] By holding the first body 1 and the second body 2, placing the thumb on the top of the pressing plate 16, pressing the pressing plate 16 downward, the reset frame 15 drives the adjusting rod 14 to descend, and the adjusting rod 14 descends inside the connecting hole plate 17, while driving the slider 13 to descend, thereby pulling the guide wires 12 on both sides to cause the pliers heads 5 on both sides to rotate. When the pliers heads 5 rotate, the positioning pins 3 rotate synchronously, and the rotation of the positioning pins 3 will drive the shrapnel 9 to stretch. The rotation of the pliers heads 5 can change the clamping angle, which can cope with situations where conventional bone-holding forceps cannot be used. At the same time, after the pliers heads 5 are adjusted to the corresponding angle, the first body 1 and the second body 2 will deflect in the corresponding direction as a whole, so as not to block the endoscope. Or the field of view of the microscope, so that the rotation of the pliers head 5 and the adjustment of the rotation angle of the pliers head 5 can be realized with one hand, which is convenient for the operator to control the pliers head 5 and reduces the difficulty of regulating the pliers head 5; when the rotation angle of the pliers head 5 needs to be precisely adjusted, the adjusting screw 21 can be rotated to make the adjusting block 19 slide on one side of the hand limit block 20, so that the rotation angle of the pliers head 5 can be controlled by pulling the guide wire 12 through the adjusting block 19, and the adjusting block 19 and the hand limit block 20 are adjusted through the thread, so that the pliers head 5 can maintain more angles, and the scale on one side of the hand limit block 20 can make the pliers head 5 at the desired angle, and at the same time, the pliers heads 5 on both sides can be kept in the same position.
[0042] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. While specific details are described in detail in the preferred embodiments of the present invention to provide a thorough understanding of the present invention, those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.
[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. An adjustable rongeur, characterized in that: It comprises a first body, the inner side of which is rotatably connected to a second body, and pliers heads are rotatably mounted on the first body and the second body; The adjusting component connects the first body and the pliers head, and the second body and the pliers head, and the adjusting component adjusts the angle of the pliers head.
2. The adjustable rongeur according to claim 1, characterized in that: The adjustment component includes positioning pins inserted into the top ends of the first body and the second body, and the outer sides of the positioning pins on both sides are fixedly connected with convex strips.
3. The adjustable rongeur according to claim 2, characterized in that: The outer sides of the convex strips on both sides are sleeved with clamp heads, and the inner sides of the positioning pins are plugged with limiting blocks.
4. The adjustable rongeur according to claim 3, characterized in that: The top of the limit block is fixedly connected with a connecting frame, and both sides of the limit block are fixedly connected with arc plates.
5. The adjustable rongeur according to claim 4, characterized in that: The bottom of the limit block is fixedly connected with an elastic piece, the bottom end of the elastic piece is fixedly connected with a limit rod, one side of the first body and the second body is fixedly connected with a hook rack, and the limit rod is clamped on the inner side of the hook rack.
6. The adjustable rongeur according to claim 4, characterized in that: A guide wire is fixedly connected to one side of the connecting frame. The guide wire is slidably connected to the inside of the first body and the second body. A slider is slidably connected to the inside of the first body and the second body.
7. The adjustable rongeur according to claim 6, characterized in that: One side of the slider is fixedly connected with an adjusting rod, and one end of the adjusting rod is fixedly connected with a reset frame.
8. The adjustable rongeur according to claim 7, characterized in that: A pressing plate is fixedly connected to one side of the reset frame, a connecting hole plate is fixedly connected to the inner sides of the first body and the second body, and the adjusting rod is slidably connected to the inside of the connecting hole plate.
9. The adjustable rongeur according to claim 8, characterized in that: Thinning sections are provided on both sides of the connecting hole plate, and an adjusting screw is rotatably connected to one side of the sliding block.
10. The adjustable rongeur according to claim 9, characterized in that: The outer side of the adjusting screw is threadedly connected to an adjusting block, and the adjusting block is slidably connected to the inside of the first body and the second body. One side of the slider is fixedly connected to a hand limit block, and the hand limit block is slidably connected to the outer side of the first body and the second body, and the adjusting block is slidably connected to one side of the hand limit block.