Costal cartilage slicer

Abstract

The application provides a costal cartilage slicer, which comprises a base, a knife seat, a fixing structure, a chuck structure, a knife holder and a stopper. The knife holder is used for detachably mounting a knife blade. The knife seat is arranged on the base. One end of the knife holder is rotationally connected to the knife seat, so that the rotation of the knife holder drives the knife blade to cut a costal cartilage block downward. The stopper is arranged on the lower side of the knife holder. The chuck structure is movable relative to the fixing structure along a reference direction. The fixing structure is arranged on the first side of the chuck structure along the reference direction. The stopper is arranged on the second side of the chuck structure along the reference direction. The stopper and the chuck structure can tightly clamp a costal cartilage block to be cut. The thickness of the costal cartilage pieces obtained by using the costal cartilage slicer provided by the application can be uniform and consistent.

Description

Technical Field

[0001] This invention relates to surgical instruments, and more particularly to a rib cartilage slicer. Background Technology

[0002] The main procedure for rhinoplasty is to combine a nasal bridge implant with rib cartilage for the nasal tip, collectively known as rib cartilage rhinoplasty.

[0003] In existing related technologies, the blocky rib cartilage is usually cut into several pieces of three to six pieces by manual cutting. In this process, manual cutting cannot make the thickness of a single rib cartilage piece completely uniform in all directions, nor can it make the thickness of two or more rib cartilage pieces completely uniform. The unevenness and inconsistency in thickness will lead to the instability of the left and right support of the nasal tip support, which can easily cause postoperative problems such as nasal tip deviation. Summary of the Invention

[0004] This invention provides a rib cartilage slicer to solve the problem that it is difficult to achieve a uniform and consistent thickness in the rib cartilage slices obtained by slicing.

[0005] According to a first aspect of the present invention, a rib cartilage slicer is provided, comprising: a base, a blade holder, a fixing structure, a clamping structure, a blade rest, and a stop block;

[0006] The blade holder is used to detachably mount the blade, the blade seat is disposed on the base, and one end of the blade holder is rotatably connected to the blade seat so that the blade can be driven to cut the costal cartilage block by rotating the blade holder;

[0007] The stop block is located on the lower side of the blade holder. The chuck structure is movable relative to the fixed structure along a reference direction. The fixed structure is located on the first side of the chuck structure along the reference direction. The stop block is located on the second side of the chuck structure along the reference direction. The stop block and the chuck structure can tightly clamp the rib cartilage block to be sliced.

[0008] Optionally, the rib cartilage slicer further includes an elastic connection structure, wherein the two ends of the elastic connection structure along the reference direction are respectively connected to the fixing structure and the clamping structure to provide an elastic force to the clamping structure. The elastic force refers to the force that enables the clamping structure to move away from the fixing structure along the reference direction.

[0009] Optionally, the elastic connection structure includes a first elastic component, a connecting rod, and a ball head. One end of the connecting rod is connected to or passes through the fixed structure, and the other end of the connecting rod is provided with the ball head. The ball head is connected to the clamping structure. The two ends of the first elastic component along the reference direction are respectively connected to the fixed structure and the clamping structure. The clamping structure is provided with a groove for the ball head to be inserted.

[0010] Optionally, the chuck structure includes a chuck body and a chuck rear plate, the chuck rear plate being connected to the side of the chuck body opposite to the stop block, and the chuck rear plate being connected to the ball head.

[0011] Optionally, the rib cartilage slicer further includes a handle component, which directly or indirectly drives the clamping structure such that when the handle component is manipulated to move along the reference direction, it can drive the clamping structure to move closer to the fixed structure along the reference direction.

[0012] Optionally, the clamp structure has a self-moving plate on the side opposite to the stop block, and the fixing structure includes a fixing block and a self-moving plate track; the fixing block is fixedly connected to the base, and the self-moving plate track is fixedly connected to the fixing block. When the clamp structure moves along the reference direction, the self-moving plate can slide along the self-moving plate track.

[0013] Optionally, the rib cartilage slicer further includes a blade clamping structure, wherein the blade holder is provided with a receiving groove, the receiving groove is capable of accommodating the blade, and the blade clamping structure is used to clamp the edge of the blade located in the receiving groove.

[0014] Optionally, the rib cartilage slicer further includes a limiting and fixing component and a limiting plate. The limiting plate is mounted to the blade holder by the fastener, and the limiting plate is located on the side of the blade holder with the receiving groove.

[0015] Optionally, the blade clamping structure includes a second elastic member and a clamping member, and at least two sides of the receiving groove are provided with track grooves; the second elastic member connects the blade holder and the clamping member in the direction of clamping the edge of the blade, so as to push the clamping member to clamp the edge of the blade, the clamping member is disposed in the track groove, and moves along the track groove when pushed by the second elastic member.

[0016] Optionally, the edge of the blade may also be provided with a slot for the holder to be inserted.

[0017] Optionally, the rib cartilage slicer further includes at least one thickness block, each thickness block including a thickness portion, and the thickness of the thickness portion of different types of thickness blocks is different;

[0018] When different types of thickness blocks are selected, the spacing between the blade and the stop along the reference direction is different, and the different spacings correspond to different slice thicknesses.

[0019] Optionally, the upper side of the stop block is provided with a stop block extension plate, and the thickness block can be installed between the tool holder and the stop block extension plate along the reference direction. When the blade is installed together with any one of the thickness blocks on the tool holder, the thickness portion of the thickness block is sandwiched between the tool holder and the stop block extension plate along the reference direction.

[0020] Optionally, the rib cartilage slicer further includes a retracting block disposed on the blade holder, the retracting block being used to controllably press down on the blade disposed on the blade holder, so that the blade disengages from the blade holder.

[0021] Optionally, the tool holder is rotatably connected to the tool holder by a fixing screw, and the fixing screw is fitted with a Teflon washer and a gasket.

[0022] The rib cartilage slicer provided by the present invention can clamp the rib cartilage block to be sliced ​​using a clamping structure and a stop block, and can slice using a blade mounted on a blade holder. At the same time, since both the blade and the stop block are mounted on the blade holder, their relative positions can be fixed, thereby ensuring that the thickness of the rib cartilage slices obtained from the slicing is uniform and consistent. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the slicing principle of the rib cartilage slicer in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a rib cartilage slicer in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the rib cartilage slicer in one embodiment of the present invention when it has not been cut;

[0027] Figure 4 This is a schematic diagram of the structure of the rib cartilage slicer during cutting in one embodiment of the present invention;

[0028] Figure 5 This is a top view schematic diagram of a rib cartilage slicer according to an embodiment of the present invention;

[0029] Figure 6 This is a side view schematic diagram of a costal cartilage slicer according to an embodiment of the present invention;

[0030] Figure 7 yes Figure 2 A schematic diagram of the local structure of part B in the middle section;

[0031] Figure 8 This is a schematic diagram of the elastic connection structure in one embodiment of the present invention;

[0032] Figure 9 This is a partial structural diagram of the rib cartilage slicer in one embodiment of the present invention when the blade is not retracted;

[0033] Figure 10 This is a partial structural diagram of the rib cartilage slicer during the retraction process in one embodiment of the present invention;

[0034] Figure 11a This is a schematic diagram of the blade structure in one embodiment of the present invention. Figure 1 ;

[0035] Figure 11b This is a schematic diagram of the blade structure in one embodiment of the present invention. Figure 2 ;

[0036] Figure 12a This is a schematic diagram of the structure of a thickness block in one embodiment of the present invention. Figure 1 ;

[0037] Figure 12b This is a schematic diagram of the structure of the rear block in one embodiment of the present invention. Figure 2 ;

[0038] Figure 13 yes Figure 2 A schematic diagram of the structure of part A from another perspective.

[0039] Explanation of reference numerals in the attached figures:

[0040] 101-blade;

[0041] 1011 - Card Slot;

[0042] 1012 - Card slot;

[0043] 1013 - First cutting edge surface;

[0044] 1014 - Second cutting edge surface;

[0045] 102-Stop;

[0046] 1021 - Stop extension plate;

[0047] 103 - Clamp structure;

[0048] 1031 - Chuck back plate;

[0049] 1032 - Chuck body;

[0050] 104 - Fixed structure;

[0051] 1041-Fixed Block;

[0052] 1042 - Self-propelled plate track;

[0053] 1043 - Through hole;

[0054] 105 - Tool Holder;

[0055] 1051 - Reception slot;

[0056] 1052 - Track groove;

[0057] 1053 - Blade limiting part;

[0058] 1054 - Retractor block slot;

[0059] 106-Limiting plate;

[0060] 107-thickness block;

[0061] 1071-Thickness block matrix;

[0062] 1072 - Thickness section;

[0063] 1073 - Card slot;

[0064] 1074-thickness block groove;

[0065] 108 - Retracting block;

[0066] 109 - Blade clamping structure;

[0067] 1091 - Second elastic component;

[0068] 1092 - Clamping component;

[0069] 110-Fasteners;

[0070] 111-Self-moving plate;

[0071] 112 - Handle component;

[0072] 113 - Base;

[0073] 114-knife holder;

[0074] 115 - Base blade;

[0075] 116 - Foot pad;

[0076] 117 - Flexible connection structure;

[0077] 1171 - Ball Head;

[0078] 1172 - Linkage;

[0079] 1173 - First elastic component;

[0080] 118-Teflon gasket;

[0081] 119 - Fixing screw;

[0082] 120-Washer;

[0083] 121-Teflon gasket;

[0084] 122-Butterfly Nut;

[0085] 123 - Anti-negative screw. Detailed Implementation

[0086] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0087] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0088] The technical solution of the present invention will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0089] Figure 1 This is a schematic diagram of the slicing principle of the rib cartilage slicer in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the rib cartilage slicer in one embodiment of the present invention when it has not been cut; Figure 4 This is a schematic diagram of the structure of the rib cartilage slicer during cutting in one embodiment of the present invention; Figure 5 This is a top view of the costal cartilage slicer in one embodiment of the present invention; Figure 6 This is a side view schematic diagram of a rib cartilage slicer according to an embodiment of the present invention.

[0090] Please refer to the invention. Figures 1 to 5 The rib cartilage slicer includes: a base 113, a blade holder 114, a fixing structure 104, a clamping structure 103, a blade holder 105, and a stop block 102.

[0091] Please refer to Figure 2 and combined Figure 1 The blade holder 105 is used to detachably mount the blade 101. The blade base 114 is disposed on the base 113. One end of the blade holder 105 is rotatably connected to the blade base 114, so that the rotation of the blade holder 105 drives the blade 101 to cut the rib cartilage block 2; wherein, it can be as follows Figure 1 Cut downwards in the direction shown.

[0092] Please refer to Figure 1 The stop block 102 is located on the lower side of the tool holder 105, and the chuck structure 103 can move relative to the fixed structure along a reference direction, where the reference direction can be understood as the direction in which the costal cartilage block 2 is clamped, specifically for example... Figure 1 As shown, since the stop block 102 and the clamping structure 103 clamp the costal cartilage block 2 from the front and rear sides, the reference direction can also be regarded as the front and rear direction.

[0093] The fixing structure 104 is disposed on the first side of the clamping structure 103 along the reference direction, the stop block 102 is located on the second side of the clamping structure 103 along the reference direction, and the stop block 102 and the clamping structure 103 can tightly clamp the rib cartilage block 2 to be sliced.

[0094] Since both the blade and the stop are mounted on the tool holder, their relative positions can be fixed. Figure 1 For example, the distance between the two can be kept at L, and thus the thickness of the rib cartilage slices obtained by slicing can be kept at L. It can be seen that this embodiment can achieve uniform and consistent thickness.

[0095] In addition, Figure 1 In order to facilitate the characterization of its principle, some dimensions can be considered exaggerated. Therefore, in the specific implementation process, the dimensional proportions between the fixing structure 104, the clamping structure 103, the blade 101, the rib cartilage block 2, and the stop block 102 may not be as shown. Figure 1 As shown, but the principles of their interaction can be referred to Figure 1 The explanation is as shown.

[0096] In one embodiment, the rib cartilage slicer may further include an elastic connection structure 117, which connects the fixing structure 104 and the clamping structure 103 at both ends along the reference direction, respectively, to provide an elastic force to the clamping structure. The elastic force refers to the force that enables the clamping structure to move away from the fixing structure along the reference direction.

[0097] In the above embodiments, the elastic force can provide the required clamping force for clamping the costal cartilage block 2.

[0098] In actual use, the clamp structure 103 can be pulled to create a sufficient gap between the clamp structure 103 and the stop block 102. At this time, the rib cartilage block 2 is placed into the gap, and the clamp structure 103 is released. The clamp structure 103 can move close to the rib cartilage block 2 under the action of elastic force, so that the clamp structure 103 can fit the rib cartilage block 2. As the slicing is carried out, the thickness of the rib cartilage block 2 can gradually decrease after each slicing, but the clamp structure 103 can still remain in contact, thereby maintaining the clamping of the rib cartilage block 2 by the clamp structure 103 and the stop block 102, and fixing the position of the rib cartilage block 2.

[0099] It is evident that the function of the clamp structure 103 is to fit tightly against the costal cartilage block 2, leaving no gaps during the cutting process and ensuring the accuracy of the cutting.

[0100] Figure 7 yes Figure 2 A schematic diagram of the local structure of part B in the middle section; Figure 8 This is a schematic diagram of the elastic connection structure in one embodiment of the present invention.

[0101] For specific implementation details, please refer to... Figure 7 and Figure 8 In conjunction with other accompanying drawings, the elastic connection structure 117 may include a first elastic component 1173, a connecting rod 1172, and a ball head 1171;

[0102] One end of the connecting rod 1172 is connected to the fixed structure 104, or: the connecting rod 1172 passes through the fixed structure 104, and the other end of the connecting rod 1172 is provided with the ball head 1171, which is connected to the clamp structure 103.

[0103] In one example, if the connecting rod 1172 is fixedly connected to the fixed structure 104, then the connecting rod 1172 can be a telescopic rod, with both ends of the telescopic rod connected to the fixed structure 104 and the ball head 1171 respectively.

[0104] In another example, the fixed structure 104 may be provided with a through hole 1043 through which the connecting rod 1172 passes, which can guide the movement of the connecting rod 1172.

[0105] The first elastic member 1173 is connected at both ends of the fixing structure 104 and the clamping structure 103 along the reference direction, respectively. The clamping structure 103 is provided with a groove for the ball head to be inserted. The first elastic member 1173 can be, for example, a spring, which can be located on the outside of the connecting rod 1172. Figure 7 In the embodiment shown, the first elastic member 1173 and the connecting rod 1172 are in one-to-one correspondence. In other alternative solutions, they may not be in one-to-one correspondence.

[0106] In specific implementation, the chuck structure 103 includes a chuck body 1032 and a chuck back plate 1031. The chuck back plate 1031 is connected to the side of the chuck body 1032 opposite to the stop block 102. The chuck back plate 1031 can be connected to the ball head 1171.

[0107] Among them, through the connection between the back plate 1031 of the clamp and the ball head 1171, the ball head 1171 can be used as an adjustable sphere, which allows the clamp body 1032 to make fine arc changes, so as to achieve the effect of closely adhering to the costal cartilage block 2.

[0108] Specifically, the ball head 1171 can be embedded in the groove (e.g., a spherical groove, a cuboid groove, a cube groove, etc.). Then, under the elastic force of the connecting rod 1172, the ball head 1171 can push the groove of the collet rear plate 1031, thereby pushing the collet rear plate 1031 and the collet body 1032 connected thereto away from the fixed structure 104. When the ball head 1171 is directly or indirectly driven to move closer to the fixed structure 104, it can drive the collet rear plate 1031 and the collet body 1032 connected thereto to move closer to the fixed structure 104 through the spherical groove. Simultaneously, due to the action of the ball head 1171, the collet body 1032 can deflect to a certain extent, thereby better conforming to the costal cartilage block 2.

[0109] In other examples, the other end of the connecting rod 1172 may be directly fixed to the back plate 1031 of the clamp without the ball head 1171.

[0110] In one implementation method, please refer to Figures 2 to 7 The rib cartilage slicer also includes a handle component 112, which directly or indirectly drives the clamping structure 103 so that when the handle component 112 is manipulated to move along the reference direction, it can drive the clamping structure 103 to move closer to the fixed structure 104 along the reference direction.

[0111] The handle component can be connected to the clamping structure 103 via a connecting rod 1172 and a ball head 1171, for example. This embodiment does not exclude other implementation methods, as long as the handle component 112 can drive the movement of the clamping structure 103, regardless of the method, it does not depart from the description of this embodiment. The handle component can be a handle ball.

[0112] In one example, with Figure 8 For example, the connecting rod 1172 can pass through the through hole 104 of the fixing structure 104, and the number of connecting rods 1172 can be three, of which at least one connecting rod 1172 (e.g., one connecting rod 1172) is provided with a handle part 112.

[0113] When the handle component 112 is pulled, it can drive the three connecting rods 1172, such as the first elastic component 1173 of the spring, so that the clamp structure 103 can move in the pulling direction of the handle component 112. After the pulling creates enough space to place the rib cartilage block, the handle component 112 is released. For example, the first elastic component 1173 of the spring can generate a restoring force, so that the ball heads 117 of the three connecting rods 1172 can make universal movements according to the shape of the rib cartilage block. In this way, it is easy to control the clamp structure 103 to effectively and accurately fit one side of the rib cartilage block, and the other side of the rib cartilage block fits the stop block 102. The clamp structure 103 and the stop block 102 form a tight clamping fit from left to right, achieving an effective and powerful fixing effect.

[0114] In contrast, in other existing solutions, the costal cartilage is difficult to remove, the amount taken is small, and the shape is irregular. It is usually impossible to stably fix the costal cartilage. If the costal cartilage cannot be perfectly fixed, the costal cartilage will be cut off during the cutting process, resulting in the loss of the costal cartilage. However, the solution in this embodiment can effectively fix the costal cartilage and avoid loss.

[0115] In the specific implementation process, the edge of the base 113 may also be provided with a base blade plate 115, the position of which matches the blade. The base blade plate 115 can be connected to the base 113 and closely attached to the lower edge of the chuck body 1032. It can serve as a load-bearing part when the blade 101 presses down to cut the costal cartilage, ensuring that the costal cartilage block can be completely cut when the blade 101 presses down to cut.

[0116] Pull the ball handle parallel backward, and the spring of the connecting rod will drive the chuck body 1032, the chuck back plate 1031, the ball head 1171, and the self-moving plate 111 to move backward as a whole. After leaving enough space, the rib cartilage block 2 to be cut can be placed close to the chuck body 1032. Then push the ball handle forward to push the rib cartilage block 2 to the edge of the base blade plate. Press down the 22 blade holder to completely fix the rib cartilage block between the 12 stop block and the 7 chuck.

[0117] Furthermore, the number of elastic connection structures 117 can be one or at least two, for example, multiple elastic connection structures 117 can be evenly distributed.

[0118] In one implementation method, please refer to Figure 2 The clamping structure 103 has a self-moving plate 111 on the side opposite to the stop block 102. The fixing structure 104 includes a fixing block 1041 and a self-moving plate track 1042. The fixing block 1041 is fixedly connected to the base 113, and the self-moving plate track 1042 is fixedly connected to the fixing block 1041. When the clamping structure 103 moves along the reference direction, the self-moving plate 111 can slide along the self-moving plate track 1042.

[0119] In one example, with Figures 2 to 6 For example, both the self-moving plate 111 and the self-moving plate track 1042 can be in the shape of a U-shape with the opening facing downwards. The width of the self-moving plate track 1042 can be narrower than that of the self-moving plate 111, and its height can also be lower than that of the self-moving plate 111. When the handle ball is pulled backwards, the self-moving plate 111 will cover the self-moving plate track 1042 and move backwards. In a further example, the width of the self-moving plate track 1042 can be fixed or variable. For example, the end closer to the fixed block 1041 is wider than the end farther away from the fixed block 1042. That is, along the direction away from the fixed block 1041, the width of the self-moving plate track 1042 can gradually decrease.

[0120] As can be seen, the self-moving plate 111 and the self-moving plate guide rail 1042 can facilitate the guidance of the movement of the clamp structure 103, ensuring that the clamp structure 103 can fit and clamp the rib cartilage block 2.

[0121] The chuck body 1032, chuck back plate 1031, ball head 1171, connecting rod 1172, fixing block 1041, handle part 112, self-moving plate 111, and self-moving plate track 1042 can form an integral module. The function of this module as a whole is to be able to move back and forth to fix the rib cartilage block. It can be adjusted to a suitable position according to the size of different rib cartilage blocks to fix the rib cartilage block that needs to be cut.

[0122] Figure 9 This is a partial structural diagram of the rib cartilage slicer in one embodiment of the present invention when the blade is not retracted; Figure 10 This is a partial structural diagram of the rib cartilage slicer during the retraction process in one embodiment of the present invention; Figure 11a This is a schematic diagram of the blade structure in one embodiment of the present invention. Figure 1 ; Figure 11b This is a schematic diagram of the blade structure in one embodiment of the present invention. Figure 2 ; Figure 12a This is a schematic diagram of the structure of a thickness block in one embodiment of the present invention. Figure 1 ; Figure 12b This is a schematic diagram of the structure of the rear block in one embodiment of the present invention. Figure 2 .

[0123] Please refer to Figures 9 to 11b The rib cartilage slicer further includes a blade clamping structure 109. The blade holder 105 is provided with a receiving groove 1051 for receiving the blade 101. The blade clamping structure 109 is used to clamp the edge of the blade 101 located in the receiving groove 1051, for example, it can be self-cleaning. Figure 8 and Figure 9 The edges of the blade 101 are shown on the left and right sides.

[0124] The receiving groove 1051 can be a recessed groove located on the side of the tool holder near the fixed structure. The tool holder can also have a retraction block slot 1054 for inserting the retraction block.

[0125] In one implementation method, please refer to Figure 2 , Figure 4 , Figure 5 The rib cartilage slicer further includes a fastener 110 and a limiting piece 106. The limiting piece 106 is mounted to the blade holder 105 via the fastener 110. The limiting piece 106 is located on the side of the blade holder 105 where the receiving groove is provided, and can block the side of the receiving groove 1051 near the fixed structure to achieve a limiting effect on the blade 101.

[0126] The fastener 110 may be, for example, a fastening screw, which can pass through the limiting piece 106 and the tool holder 105 to achieve fastening.

[0127] For at least some of the fasteners 110 (e.g., fastening screws), after passing through the limiting plate 106 and the tool holder 105, they can be fastened to the butterfly nut 122. Furthermore, in a configuration with a thickness block 107, the fastener 109 can also pass through the thickness block 107 and the stop extension plate 1021, thereby achieving a fastening connection between the limiting plate 106, the thickness block 107, and the stop block 102 of the tool holder 105.

[0128] Please refer to Figure 8 and Figure 9 The blade clamping structure 109 includes a second elastic member 1092 and a clamping member 1091. At least two sides of the receiving groove 1051 are provided with track grooves 1052. The second elastic member 1091 connects the blade holder 105 and the clamping member 1092 in the direction of clamping the edge of the blade 101, so as to push the clamping member 1091 to clamp the edge of the blade. The clamping member 1091 is provided in the track groove 1052 and moves along the track groove 1052 when pushed by the second elastic member 1091.

[0129] The direction of the edge holding the blade 101 can be, for example, as follows: Figure 8 and Figure 9 For example, the clamping member 1092 located on the left edge of the blade 101 moves to the right, and the clamping member 1092 located on the right edge of the blade 101 moves to the left. The blade 101 can be clamped by the two clamping members 1092.

[0130] To accommodate the clamping element 1092, please refer to one example. Figure 11a and Figure 11b The edge of the blade 101 is also provided with a slot 1011 for the holder to be inserted. In a specific example, other edges of the blade 101 may also be provided with other slots, such as slot 1012 shown in the figure. Correspondingly, the tool holder may be provided with a blade limiting part 1053 that can be inserted into the slot 1012. By using slots (such as slots 1011 and slots 1012) at different positions, the blade can be easily limited in different directions.

[0131] In one embodiment, the blade 101 can be sharpened on one side of its surface, thus forming a single-sided sharpening structure, for example, as shown in the example below. Figure 11b The blade shown is single-edged to the right, which facilitates cutting a flatter and straighter surface. The blade 101 can be double-edged, with the first edge angle being, for example, [missing information]. Figure 11b The 20 degrees shown can be used to maintain the hardness of the cutting edge; the second sharpening angle is, for example, [missing information]. Figure 11b The angle shown is 9 degrees. Correspondingly, one side surface of the blade 101 may have a first cutting edge surface 1013 and a second cutting edge surface 1014. The first cutting edge surface 1013 is located at the end of the blade 101 to connect to the other side surface of the blade 101. The second cutting edge surface 1014 is connected to the first cutting edge surface. The angle between the first cutting edge surface 1013 and the other side surface of the blade 101 is the first angle (e.g., 20 degrees). The angle between the plane where the second cutting edge surface is located and the plane where the other side surface of the blade 101 is located is the second angle (e.g., 9 degrees). The second angle is smaller than the first angle. Through the above single-sided sharpening design and two cutting edge surfaces, the sharpness of the cutting edge can be guaranteed. When cutting the costal cartilage, under the action of downward force, it is easy to achieve the cutting, so that the cut surface of the costal cartilage slice is flatter and straighter.

[0132] In one implementation method, please refer to Figure 12a and Figure 12b The rib cartilage slicer further includes at least one thickness block 107, each of the thickness blocks 107 including a thickness portion 1072, and the thickness of the thickness portion 1072 of different types of thickness blocks 107 is different; each type of thickness block can be mounted on the blade holder 105.

[0133] When different types of thickness blocks are selected, the spacing between the blade 101 and the stop 102 along the reference direction (i.e., Figure 1 The L values ​​shown are different, and different intervals correspond to different slice thicknesses. Specifically, the thickness of the thickness portion 1072 in the thickness block 107 is D, where D and L change synchronously. That is, if the thickness D of the thickness portion 1072 of the selected thickness block 107 is different, then the above L is also different. In addition, D and L can be equal or unequal.

[0134] In one example, a stop extension plate 1021 is provided on the upper side of the stop 102, which can be integral with the stop 102 or assembled together. The thickness block 107 can be installed between the tool holder 105 and the stop extension plate 1021 along the reference direction. When the blade 101 is installed on the tool holder together with any one of the thickness blocks 107, the thickness portion 1072 of the thickness block 107 is sandwiched between the tool holder 106 and the stop extension plate 1021 along the reference direction. Furthermore, the tool holder 106, the thickness portion 1072, and the stop extension plate 1021 can be sequentially fitted together along the reference direction. In other examples, other components may be arranged between the tool holder and the thickness portion, or between the thickness portion and the tool holder extension plate. Regardless of the arrangement, it does not depart from the description of the present embodiment.

[0135] In this embodiment, the use of the thickness block 107 can change the position of the stop block 102 relative to the tool holder 105, thereby adjusting the L mentioned above. In other embodiments, the L mentioned above can also be adjusted by adjusting the position of the blade 101 or the tool holder 105. Regardless of the method, it does not depart from the description of this embodiment.

[0136] As can be seen, in the specific application of the above scheme (such as in rhinoplasty), it is necessary to cut the rib cartilage block into rib cartilage slices of different thicknesses. Different personnel (such as doctors) have different operating techniques, and the required thickness of the rib cartilage slices varies. The thickness blocks have different thickness standards, such as 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, and 4.0 mm. By changing the thickness blocks, it is easy to cut rib cartilage slices of different thicknesses, and it can be ensured that multiple rib cartilage slices are completely consistent in thickness.

[0137] In specific implementation, the thickness block 107 may also include a thickness block base 1071. Since the thickness of the thickness block base 1071 of each thickness block 107 is the same, it can facilitate the installation operation of the thickness block. For example, the thickness block base 1071 can be held by hand for installation.

[0138] In a further embodiment, the thickness portion 1072 may be provided with a slot 1073, through which the fastener 110 may pass to achieve positioning and installation of the thickness block 107 and hold the thickness block 107 in place. At the same time, by fastening the fastener 110 and the butterfly nut 122, the position between the thickness block 107, the tool holder 105 and the stop block 102 can be secured.

[0139] In a further embodiment, the thickness portion 1072 may also be provided with a thickness block groove 1074, and the side of the tool holder 105 away from the fixing structure along the reference direction may also be provided with a mating portion that mates with the thickness block groove 1074. Then, the thickness block can be mounted on the mating portion (for example, it may be a screw other than the fixing member 110) to further fix the position of the thickness block 107.

[0140] In one implementation method, please refer to Figure 2 The rib cartilage slicer further includes a retracting block 108 disposed on the blade holder 105. The retracting block 108 is used to controllably press down on the blade 101 disposed on the blade holder 105 so that the blade 101 disengages from the blade holder.

[0141] For one example, please refer to Figure 9 and Figure 10 The connecting surfaces of the slot 1011 and the clamping member 1091 can both be arc-shaped, with the axis of the arc shape along the reference direction. Furthermore, when the retracting block 108 is pushed downward to push the blade 101, the clamping member 1091 can be pushed to overcome the movement of the second elastic member 1092 and move away from the blade 101. As a result, the blade 101 can be pushed out and thus disengage from the receiving slot 1051 of the tool holder 105.

[0142] As can be seen, the blade 101 can be easily ejected by the blade retraction block 108, making it convenient for replacement.

[0143] Figure 13 yes Figure 2 A schematic diagram of the structure of part A from another perspective.

[0144] In one implementation method, please refer to Figure 13 The tool holder 105 is rotatably connected to the tool support 114 via a fixing screw 119, which is fitted with a Teflon washer and a gasket 120. The Teflon washer may include, for example, a Teflon washer 118 and another Teflon washer 121. Furthermore, the Teflon washer 121, Teflon washer 118, and gasket 120 may be sequentially distributed along the axial direction of the fixing screw 119. Additionally, the tool support 114 may have an internal thread into which the fixing screw 119 can be screwed.

[0145] The Teflon gasket and washer 120 can be annular. The Teflon gasket can fit tightly against the tool holder 114, reducing friction between the tool holder 105 and the tool base 114 when fixing the tool holder 105, thus increasing the flexibility of the tool holder 105. The Teflon gasket is fixed to the fixing screw 19 and fits tightly against the washer 120. When fixing the tool holder 105, the Teflon gasket provides the necessary damping force through lateral pressure, increasing flexibility and preventing the tool holder 105 from falling automatically due to gravity.

[0146] For one example, please refer to Figure 3 , Figure 13 The tool holder 114 may also be provided with a negative pressure screw 123: connecting the tool holder washer 120 and the fixing screw 119. When the fixing screw 119 is fixed, the negative pressure screw 29 can lock the fixing screw 119 to ensure that the fixing screw 119 cannot be loosened.

[0147] In one embodiment, the base 113 may also be connected to a counterweight, which may be located under the base 113 to increase the weight of the instrument and prevent it from tipping over during use. The bottom of the base 113 may also be provided with feet 116, such as silicone feet or feet made of other materials.

[0148] In summary, the rib cartilage slicer provided in this embodiment can hold the rib cartilage block to be sliced ​​using a clamping structure and a stop block, and can perform slicing using a blade mounted on the blade holder. At the same time, since both the blade and the stop block are mounted on the blade holder, their relative positions can be fixed, thereby ensuring that the thickness of the rib cartilage slices obtained from the slicing is uniform and consistent.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rib cartilage slicer, characterized in that, include: Base, tool holder, fixing structure, chuck structure, tool post and stop; The blade holder is used to detachably mount the blade, the blade seat is disposed on the base, and one end of the blade holder is rotatably connected to the blade seat so that the blade can be driven to cut the costal cartilage block by rotating the blade holder; The stop block is located on the lower side of the blade holder. The chuck structure can move relative to the fixed structure along the reference direction. The fixed structure is located on the first side of the chuck structure along the reference direction. The stop block is located on the second side of the chuck structure along the reference direction. The stop block and the chuck structure can tightly clamp the rib cartilage block to be sliced. The rib cartilage slicer further includes an elastic connection structure, wherein the two ends of the elastic connection structure along the reference direction are respectively connected to the fixing structure and the clamping structure to provide an elastic force to the clamping structure. The elastic force refers to the force that enables the clamping structure to move away from the fixing structure along the reference direction. The elastic connection structure includes a first elastic component, a connecting rod, and a ball head. One end of the connecting rod is connected to the fixed structure, and the other end of the connecting rod is provided with the ball head. The ball head is connected to the clamping structure. The two ends of the first elastic component along the reference direction are respectively connected to the fixed structure and the clamping structure. The clamping structure is provided with a groove for the ball head to be inserted. The clamp structure includes a clamp body and a clamp rear plate. The clamp rear plate is connected to the side of the clamp body opposite to the stop block, and the clamp rear plate is connected to the ball head. The ball head is an adjustable spherical body, which allows the clamp body to deflect to a certain extent, thereby better fitting the costal cartilage block. The clamping structure has a self-moving plate on the side opposite to the stop block. The fixing structure includes a fixing block and a self-moving plate track. The fixing block is fixedly connected to the base, and the self-moving plate track is fixedly connected to the fixing block. When the clamping structure moves along the reference direction, the self-moving plate can slide along the self-moving plate track. The rib cartilage slicer also includes different types of thickness blocks, each thickness block having a thickness portion, and the thickness of the thickness portion of the different types of thickness blocks is different; each type of thickness block can be mounted on the blade holder; When different types of thickness blocks are selected, the spacing between the blade and the stop along the reference direction is different, and the different spacings correspond to different slice thicknesses.

2. The rib cartilage slicer according to claim 1, characterized in that, It also includes a handle component, which directly or indirectly drives the chuck structure so that when the handle component is manipulated to move along the reference direction, it can drive the chuck structure to move closer to the fixed structure along the reference direction.

3. The rib cartilage slicer according to claim 1, characterized in that, It also includes a blade clamping structure, wherein the blade holder is provided with a receiving groove for receiving the blade, and the blade clamping structure is used to clamp the edge of the blade located in the receiving groove.

4. The rib cartilage slicer according to claim 3, characterized in that, It also includes fasteners and limiting pieces, the limiting pieces being mounted to the tool holder by the fasteners, the limiting pieces being located on the side of the tool holder that has the receiving groove.

5. The rib cartilage slicer according to claim 3, characterized in that, The blade clamping structure includes a second elastic component and a clamping member. At least two sides of the receiving groove are provided with track grooves. The second elastic component connects the blade holder and the clamping member in the direction of clamping the edge of the blade, so as to push the clamping member to clamp the edge of the blade. The clamping member is located in the track groove and moves along the track groove when pushed by the second elastic component.

6. The rib cartilage slicer according to claim 5, characterized in that, The blade is also provided with a slot for the clamping member to be inserted.

7. The rib cartilage slicer according to claim 1, characterized in that, The upper side of the stop block is provided with a stop block extension plate. The thickness block can be installed between the tool holder and the stop block extension plate along the reference direction. When the blade is installed on the tool holder together with any one of the thickness blocks, the thickness portion of the thickness block is sandwiched between the tool holder and the stop block extension plate along the reference direction.

8. The rib cartilage slicer according to claim 1, characterized in that, It also includes a tool retraction block disposed on the tool holder, the tool retraction block being used to controllably press down on the blade disposed on the tool holder so that the blade disengages from the tool holder.

9. The rib cartilage slicer according to claim 1, characterized in that, The tool holder is rotatably connected to the tool base by a fixing screw, and the fixing screw is fitted with a Teflon washer and a gasket.

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