CN212165959U

CN212165959U - Costal cartilage slicer

Info

Publication number: CN212165959U
Application number: CN202020424176.0U
Authority: CN
Inventors: 龙成云
Original assignee: Shanghai Yunxi Medical Equipment Co Ltd
Current assignee: Shanghai Yunxi Medical Equipment Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-18
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a costal cartilage section ware, include: the clamping device comprises a base, a cutter holder, a fixing structure, a chuck structure, a cutter frame and a stop block; the knife rest is used for detachably mounting a blade, the knife holder is arranged on the base, and one end of the knife rest is rotatably connected to the knife holder so as to drive the blade to cut rib cartilage blocks downwards through the rotation of the knife rest; the stop block is arranged on the lower side of the tool rest, the chuck structure can move along a reference direction relative to the fixing structure, the fixing structure is arranged on a first side of the chuck structure along the reference direction, the stop block is positioned on a second side of the chuck structure along the reference direction, and the rib cartilage block to be sliced can be tightly clamped between the stop block and the chuck structure. Use the utility model provides a thickness of costal cartilage section ware section obtained costal cartilage piece can accomplish evenly, unanimously.

Description

Costal cartilage slicer

Technical Field

The utility model relates to a surgical instrument especially relates to a costal cartilage section ware.

Background

The main operation mode of the nasal plastic operation is the operation mode of combining the false back of the nasi of the mountain root and the nasal tip of costal cartilage, which is collectively called costal cartilage and nose comprehensive operation.

In the prior art, the massive costal cartilage is usually cut into a plurality of three to six flaky costal cartilage pieces through the manual cutting of related personnel, in the process, the manual cutting cannot realize that the thickness of the single costal cartilage piece is completely uniform from top to bottom and from left to right, and cannot realize that the thickness of the two or more costal cartilage pieces is completely uniform, the uneven and inconsistent thickness can cause the instability of the left and right support force of the nasal tip support, and the postoperative problems of nose deflection and the like are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a costal cartilage slicer to the thickness of the costal cartilage piece that the solution section obtained is difficult to accomplish even, unanimous problem.

According to the utility model discloses a first aspect provides a costal cartilage section ware, include: the clamping device comprises a base, a cutter holder, a fixing structure, a chuck structure, a cutter frame and a stop block;

the knife rest is used for detachably mounting a blade, the knife holder is arranged on the base, and one end of the knife rest is rotatably connected to the knife holder so as to drive the blade to cut rib cartilage blocks downwards through the rotation of the knife rest;

the stop block is arranged on the lower side of the tool rest, the chuck structure can move along a reference direction relative to the fixing structure, the fixing structure is arranged on a first side of the chuck structure along the reference direction, the stop block is positioned on a second side of the chuck structure along the reference direction, and the rib cartilage block to be sliced can be tightly clamped between the stop block and the chuck structure.

Optionally, the costal cartilage slicer further includes an elastic connection structure, the two ends of the elastic connection structure along the reference direction are respectively connected to the fixing structure and the chuck structure, so as to provide an elastic acting force for the chuck structure, and the elastic acting force refers to an acting force capable of enabling the chuck structure to move away from the fixing structure along the reference direction.

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 with or passes through the fixed structure, the other end of the connecting rod is provided with the ball head, the ball head is connected with the chuck structure, the first elastic component is connected with the fixed structure and the chuck structure respectively at two ends of the reference direction, and the chuck structure is provided with a groove body for embedding the ball head.

Optionally, the chuck structure includes a chuck body and a chuck back plate, the chuck back plate is connected to a side of the chuck body opposite to the stopper, and the chuck back plate is connected to the ball head.

Optionally, the costal cartilage slicer further comprises a handle member, the handle member directly or indirectly drives the chuck structure, so that: when the handle part is operated and controlled to move along the reference direction, the chuck structure can be driven to move close to the fixed structure along the reference direction.

Optionally, a self-moving plate is arranged on one side of the chuck structure opposite to the stop block, and the fixing structure comprises a fixing block and a self-moving plate rail; the fixed block fixed connection in the base, move board track fixed connection certainly in the fixed block, the chuck structure is followed when the reference direction removes, move the board certainly can follow move the board track slides certainly.

Optionally, the costal cartilage slicer further comprises a blade clamping structure, the blade holder is provided with a containing groove, the containing groove can contain the blade, and the blade clamping structure is used for clamping the edge of the blade in the containing groove.

Optionally, the costal cartilage slicer further comprises a limiting fixing piece and a limiting piece, the limiting piece is installed on the tool rest through the fastening piece, and the limiting piece is located on one side, provided with the accommodating groove, of the tool rest.

Optionally, the blade clamping structure includes a second elastic component and a clamping piece, and at least two sides of the accommodating groove are provided with track grooves; the second elastic component is connected between the tool rest and the clamping piece along the direction of clamping the edge of the blade so as to push the clamping piece to clamp the edge of the blade, and the clamping piece is arranged in the track groove and moves along the track groove when pushed by the second elastic component.

Optionally, a clamping groove for inserting the clamping piece is further formed in the edge of the blade.

Optionally, the costal cartilage slicer further comprises at least one thickness block, each thickness block comprises a thickness portion, and the thickness portions of different kinds of thickness blocks are different in thickness;

wherein, when different kinds of thickness blocks are selected, the spacing between the blade and the stopper in the reference direction is different, and the different spacing corresponds to different slice thicknesses.

Optionally, a stopper extending plate is disposed on the upper side of the stopper, the thickness block can be mounted between the tool holder and the stopper extending plate along the reference direction, and when the blade is mounted 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 stopper extending plate along the reference direction.

Optionally, the costal cartilage slicer further comprises a cutter withdrawing block arranged on the cutter frame, and the cutter withdrawing block is used for controllably pressing down the blade arranged on the cutter frame so as to enable the blade to be separated from the cutter frame.

Optionally, the tool rest is rotatably connected to the tool apron through a fixing screw, and a teflon gasket and a washer are sleeved on the fixing screw.

The utility model provides an among the costal cartilage slicer, but utilize chuck structure and the required sliced costal cartilage piece of dog centre gripping, the section can be implemented to the blade that the utilization was installed in the knife rest, simultaneously, because blade and dog are all installed in the knife rest, relative position between them can be fixed get off, and then, the thickness of the costal cartilage piece that the section obtained can accomplish evenly, unanimously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of a cutting principle of a costal cartilage slicer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a costal cartilage slicer according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the costal cartilage slicer according to an embodiment of the present invention when the costal cartilage slicer is not cut;

fig. 4 is a schematic structural view of the costal cartilage slicer according to an embodiment of the present invention when it is cut off;

fig. 5 is a schematic top view of an embodiment of the costal cartilage slicer of the present invention;

fig. 6 is a schematic side view of a costal cartilage slicer according to an embodiment of the present invention;

FIG. 7 is a partial schematic view of the structure of the portion B in FIG. 2;

fig. 8 is a schematic structural diagram of an elastic connection structure according to an embodiment of the present invention;

fig. 9 is a partial schematic structural view of the costal cartilage slicer according to an embodiment of the present invention;

fig. 10 is a schematic view of a portion of the costal cartilage slicer according to an embodiment of the present invention;

fig. 11a is a first schematic structural view of a blade according to an embodiment of the present invention;

fig. 11b is a schematic structural diagram of a blade according to an embodiment of the present invention;

fig. 12a is a first schematic structural diagram of a thickness block according to an embodiment of the present invention;

fig. 12b is a schematic structural diagram of a rear block according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a portion a in fig. 2 from another view angle.

Description of reference numerals:

101-a blade;

1011-card slot;

1012-card slot;

1013-a first edge surface;

1014-a second cutting edge surface;

102-a stop;

1021-a stop extension plate;

103-collet configuration;

1031-chuck back plate;

1032-chuck body;

104-a fixed structure;

1041-fixed block;

1042 — self-moving plate track;

1043-a through hole;

105-a tool holder;

1051-a receiving tank;

1052-track groove;

1053-a blade-limiting portion;

1054-retracting block slot;

106-a limiting piece;

107-thickness blocks;

1071-thickness bulk matrix;

1072-thickness part;

1073-card slot;

1074-thickness block grooves;

108-tool withdrawal block;

109-a blade clamping arrangement;

1091-a second elastic member;

1092-a clamp;

110-a fastener;

111-self-moving plates;

112-a handle member;

113-a base;

114-a tool apron;

115-base knife plate;

116-a foot pad;

117-elastic attachment structure;

1171-bulb;

1172-link;

1173-a first resilient member;

118-teflon spacers;

119-set screws;

120-a gasket;

121-teflon spacers;

122-butterfly nut;

123-stop screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth",

"second," "third," "fourth," and the like (if any) are used to distinguish between similar objects and not necessarily to describe a particular order or sequence. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical solution of the present invention will be described in detail with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 1 is a schematic view of a cutting principle of a costal cartilage slicer according to an embodiment of the present invention; fig. 3 is a schematic structural view of the costal cartilage slicer according to an embodiment of the present invention when the costal cartilage slicer is not cut; fig. 4 is a schematic structural view of the costal cartilage slicer according to an embodiment of the present invention when it is cut off; fig. 5 is a schematic top view of an embodiment of the costal cartilage slicer of the present invention; fig. 6 is a schematic side view of a costal cartilage slicer according to an embodiment of the present invention.

Referring to fig. 1 to 5, the costal cartilage slicer of the utility model includes: a base 113, a tool holder 114, a securing structure 104, a collet structure 103, a tool holder 105, and a stop 102.

Referring to fig. 2 in combination with fig. 1, the tool holder 105 is used for detachably mounting the blade 101, the tool holder 114 is disposed on the base 113, and one end of the tool holder 105 is rotatably connected to the tool holder 114, so as to drive the blade 101 to lower the ribbed cartilage block 2 by the rotation of the tool holder 105; wherein the undercut may be in the direction shown in figure 1.

Referring to fig. 1, the stopper 102 is disposed at the lower side of the tool holder 105, and the collet structure 103 can move relative to the fixing structure along a reference direction, wherein the reference direction can be understood as a direction for clamping the costal cartilage block 2, such as shown in fig. 1, and the reference direction can be also considered as a front-back direction because the stopper 102 and the collet structure 103 clamp the costal cartilage block 2 from the front side and the back side.

The fixing structure 104 is disposed on a first side of the chuck structure 103 along the reference direction, the stopper 102 is disposed on a second side of the chuck structure 103 along the reference direction, and the rib cartilage block 2 to be sliced can be tightly clamped between the stopper 102 and the chuck structure 103.

Wherein, because blade and dog are all installed in the knife rest, relative position between them can be fixed down, take fig. 1 as an example, and the interval between the two can keep at L, and then, the thickness of the costal cartilage piece that the section obtained all can keep L, and it is thus clear that this embodiment can accomplish even, unanimous of thickness.

In addition, in fig. 1, for convenience of representation of the principle, the dimensions of a part of the fixing structure 104, the collet structure 103, the blade 101, the costal cartilage block 2 and the stopper 102 may be exaggerated, and further, in the implementation process, the mutual dimensional proportion relation among the fixing structure 104, the collet structure 103, the blade 101, the costal cartilage block 2 and the stopper 102 may not be as shown in fig. 1, but the mutual action principle can be understood by referring to fig. 1.

In one embodiment, the costal cartilage slicer may further include an elastic connection structure 117, and both ends of the elastic connection structure 117 along the reference direction are respectively connected to the fixing structure 104 and the collet structure 103 to provide an elastic force for the collet structure, where the elastic force refers to a force capable of moving the collet structure away from the fixing structure along the reference direction.

In the above embodiment, the required holding force can be provided for holding the costal cartilage block 2 by the elastic force.

In the actual use, can pull chuck structure 103 to make chuck structure 103 and dog 102 between produce sufficient interval, place costal cartilage piece 2 this moment in this interval, release chuck structure 103, chuck structure 103 can be close to costal cartilage piece 2 motion under the effect of elastic force, thereby make chuck structure 103 can laminate costal cartilage piece 2, wherein, along with sliced implementation, the thickness of costal cartilage piece 2 can reduce gradually after slicing each time, but chuck structure 103 still can keep laminating, thereby keep chuck structure 103 and dog 102 to the centre gripping of costal cartilage piece 2, realize the rigidity to costal cartilage piece 2.

It can be seen that the function of the chuck structure 103 is to completely cling to the costal cartilage block 2, no gap is left during cutting, and the accuracy of cutting is ensured.

FIG. 7 is a partial schematic view of the structure of the portion B in FIG. 2; fig. 8 is a schematic structural diagram of an elastic connection structure according to an embodiment of the present invention.

In a specific implementation process, referring to fig. 7 and 8 in combination with other figures, the elastic connection structure 117 may include a first elastic component 1173, a connecting rod 1172, and a ball 1171;

one end of the link 1172 is connected to the fixed structure 104, or: the connecting rod 1172 penetrates through the fixing structure 104, the ball head 1171 is arranged at the other end of the connecting rod 1172, and the ball head 1171 is connected with the chuck structure 103.

In one example, if link 1172 is fixedly attached to fixed structure 104, then: the connecting rod 1172 may be a telescopic rod, and two ends of the telescopic rod are respectively connected to the fixing structure 104 and the ball 1171.

In another example, the fixing structure 104 can be provided with a through hole 1043 for the connecting rod 1172 to pass through, and the through hole 1043 can provide a guide function for the movement of the connecting rod 1172.

The two ends of the first elastic component 1173 along the reference direction are respectively connected with the fixing structure 104 and the chuck structure 103, and the chuck structure 103 is provided with a groove body for embedding the ball head. The first elastic component 1173 can be, for example, a spring, which can be disposed outside the link 1172. in the embodiment shown in fig. 7, the first elastic component 1173 and the link 1172 are in one-to-one correspondence, and in other alternatives, they can also be in non-one-to-one correspondence.

In a specific implementation process, the chuck structure 103 includes a chuck body 1032 and a chuck back plate 1031, the chuck back plate 1031 is connected to a side of the chuck body 1032 opposite to the stopper 102, and the chuck back plate 1031 can be connected to the ball head 1171.

The ball 1171 can be an adjustable sphere through the connection of the chuck back plate 1031 and the ball 1171, which enables the chuck body 1032 to change in fine curvature, so as to tightly attach to the costal cartilage block 2.

Specifically, the ball 1171 can be inserted into the groove (e.g., a spherical groove, a groove in a rectangular parallelepiped, a square cube, etc.), and further, the ball 1171 can push the groove of the chuck rear plate 1031 under the elastic force of the connecting rod 1172, so as to push the chuck rear plate 1031 and the chuck body 1032 connected thereto to move away from the fixing structure 104, and when the ball 1171 is directly or indirectly driven to move close to the fixing structure 104, it can drive the chuck rear plate 1031 and the chuck body 1032 connected thereto to move close to the fixing structure 104 through the spherical groove. Simultaneously, because of the effect of its bulb 1171, chuck body 1032 can take place to deflect to a certain extent to can laminate costal cartilage piece 2 better.

In other examples, the other end of the link 1172 can be directly fixed to the chuck rear plate 1031 without the ball 1171.

In one embodiment, referring to fig. 2 to 7, the costal cartilage slicer further includes a handle member 112, and the handle member 112 directly or indirectly drives the chuck structure 103, so that: the handle member 112 is operable to move along the reference direction to move the chuck structure 103 along the reference direction to approach the fixed structure 104.

The handle member can be connected to the chuck structure 103 through the connecting rod 1172 and the ball 1171, but other implementations are not excluded in this embodiment, and as long as the handle member 112 can drive the chuck structure 103 to move, which does not depart from the description of this embodiment in any way. The handle part can be a handle ball.

In an example, referring to fig. 8, the connecting rods 1172 can pass through the through holes 104 of the fixing structure 104, and the number of the connecting rods 1172 can be three, wherein at least one connecting rod 1172 (e.g., one connecting rod 1172) is provided with the handle part 112.

When pulling handle part 112, can drive three connecting rods 1172, for example, the first elastic component 1173 of spring, make chuck structure 103 can move along handle part 112's pulling direction, after the pulling produced the space of enough placing the costal cartilage piece, loosen handle part 112, for example, the first elastic component 1173 of spring can produce the effort that resets, make the bulb 117 of three connecting rod 1172 can be universal motion according to the shape of costal cartilage piece, and then, can be convenient for control chuck structure 103 effectively and accurately laminate costal cartilage piece one side, costal cartilage opposite side laminating dog 102, chuck structure 103 forms the clamp of driving fit with dog 102, reach the fixed action of effective powerful laminating.

Compared with the prior art, in other schemes, the costal cartilage block is difficult to take out, the taking amount is small, the shape is irregular, the costal cartilage block cannot be stably fixed usually, if the costal cartilage block cannot be perfectly fixed, the costal cartilage block can be cut off during cutting to complete the loss of the costal cartilage block, and the scheme of the embodiment can effectively fix the costal cartilage block and avoid the loss.

In the specific implementation process, the edge of the base 113 can be further provided with a base knife plate 115, the position of the base knife plate 115 is matched with that of the blade, the base knife plate 115 can be connected to the base 113 and tightly attached to the lower edge of the chuck body 1032, and the base knife plate can be used as a bearing part when the blade 101 is pressed downwards to cut costal cartilage, so that the costal cartilage blocks can be completely cut when the blade 101 is pressed downwards to cut.

The handle ball pulls backwards in parallel, the spring through the connecting rod can drive the chuck body 1032 and the chuck rear plate 1031, the ball head 1171, and the self-moving plate 111 integrally moves backwards, enough space is reserved, the rib cartilage block 2 needing to be cut can be placed tightly to the chuck body 1032, the handle ball is horizontally pushed forwards to enable the rib cartilage block 2 to be pushed to the edge of the base knife plate, and the 22 knife rest is pressed downwards to completely fix the rib cartilage block between the 12 stop blocks and the 7 chucks.

In addition, the number of the elastic connection structures 117 may be one, or may be at least two, and for example, may be a plurality of elastic connection structures 117 that are uniformly distributed.

In one embodiment, referring to fig. 2, a self-moving plate 111 is disposed on a side of the chuck structure 103 opposite to the stopper 102, and the fixing structure 104 includes a fixing block 1041 and a self-moving plate rail 1042; the fixed block 1041 is fixedly connected to the base 113, the self-moving plate rail 1042 is fixedly connected to the fixed block 1041, and when the collet structure 103 moves along the reference direction, the self-moving plate 111 can slide along the self-moving plate rail 1042.

In an example, as shown in fig. 2 to 6, the self-moving plate 111 and the self-moving plate rail 1042 may be in a T shape with an opening facing downward, the self-moving plate rail 1042 may be narrower than the self-moving plate 111 in width and lower than the self-moving plate 111 in height, and when the handle ball is pulled backward, the self-moving plate 111 covers the self-moving plate rail 1042 to move backward. By way of further example, the width of the self-moving plate rail 1042 may be fixed or may vary, for example: its one end that is close to fixed block 1041 is wider than the one end of keeping away from fixed block 1042, promptly: the width of the self-moving plate rail 1042 may be gradually reduced in a direction away from the fixed block 1041.

Therefore, the self-moving plate 111 and the self-moving plate guide rail 1042 can guide the movement of the chuck structure 103 conveniently, and ensure that the chuck structure 103 can fit and clamp the costal cartilage block 2.

The chuck body 1032, the chuck back plate 1031, the ball 1171, the connecting rod 1172, the fixing block 1041, the handle part 112, the self-moving plate 111 and the self-moving plate rail 1042 can form an integral module, and the integral module can move back and forth to fix the costal cartilage blocks, adjust the proper positions according to the sizes of different costal cartilage blocks and fix the costal cartilage blocks to be cut.

Fig. 9 is a partial schematic structural view of the costal cartilage slicer according to an embodiment of the present invention; fig. 10 is a schematic view of a portion of the costal cartilage slicer according to an embodiment of the present invention; fig. 11a is a first schematic structural view of a blade according to an embodiment of the present invention; fig. 11b is a schematic structural diagram of a blade according to an embodiment of the present invention; fig. 12a is a first schematic structural diagram of a thickness block according to an embodiment of the present invention; fig. 12b is a schematic structural diagram of a back-end block in an embodiment of the present invention.

Referring to fig. 9 to 11b, the costal cartilage slicer further includes a blade holding structure 109, the blade holder 105 is provided with a receiving groove 1051, the receiving groove 1051 is used for receiving the blade 101, and the blade holding structure 109 is used for holding the edge of the blade 101 located in the receiving groove 1051, for example, the edge of the blade 101 can be held from the left and right sides shown in fig. 8 and 9.

The accommodating groove 1051 may be a sinking groove disposed on one side of the tool holder close to the fixing structure, and the tool holder may further have a tool retracting block slot 1054 into which the tool retracting block is inserted.

In one embodiment, referring to fig. 2, 4 and 5, the costal cartilage slicer further includes a fastener 110 and a limiting plate 106, and the limiting plate 106 is mounted on the tool holder 105 through the fastener 110. The limiting piece 106 is located on one side of the knife rest 105, where the accommodating groove is formed, and can be blocked at one side of the accommodating groove 1051, which is close to the fixing structure, so as to limit the blade 101.

The fastening element 110 may be, for example, a fastening screw, and the fastening element 110 may pass through the position-limiting piece 106 and the tool holder 105 to achieve fastening.

At least a portion of the fastener 110 (e.g., a fastening screw) can be fastened to the butterfly nut 122 after passing through the stop tab 106 and the tool holder 105. Further, in the solution configured with the thickness block 107, the fastener 109 may also pass through the thickness block 107 and the block extension plate 1021, so as to achieve the fastening connection among the limiting piece 106, the thickness block 107, and the block 102 of the tool holder 105.

Referring to fig. 8 and 9, the blade holding structure 109 includes a second elastic member 1092 and a holding member 1091, and at least two sides of the accommodating groove 1051 are provided with rail grooves 1052; the second elastic member 1091 is coupled between the tool holder 105 and the holder 1092 in a direction of holding the edge of the blade 101 to push the holder 1091 to hold the edge of the blade, and the holder 1091 is disposed in the track groove 1052 and moves along the track groove 1052 when pushed by the second elastic member 1091.

Wherein the direction of the edge of the clamping blade 101 may be, for example: taking fig. 8 and 9 as an example, the clamping direction of the clamp 1092 at the left edge of the blade 101 is rightward, and the clamping direction of the clamp 1092 at the right edge of the blade 101 is leftward, so that the blade 101 can be clamped by the two clamps 1092.

To engage the holder 1092, in an example, referring to fig. 11a and 11b, the edge of the blade 101 is further provided with a slot 1011 for the holder to be inserted. In a specific example, other clamping grooves may be formed on other edges of the blade 101, such as the clamping groove 1012 shown in the figure, and correspondingly, the blade holder may be provided with a blade limiting portion 1053 capable of being inserted into the clamping groove 1012, and the blade may be limited in different directions by the clamping grooves (such as the clamping groove 1011 and the clamping groove 1012) formed in different positions.

In one embodiment, the blade 101 may be sharpened on one side surface, i.e. a single-edged structure, for example, may be sharpened on one side to the right as shown in fig. 11b, which may facilitate cutting a flatter and straighter surface, and the blade 101 may be sharpened twice, the first sharpening angle being, for example, 20 degrees as shown in fig. 11b, which may be used to maintain the hardness of the edge, and the second sharpening angle being, for example, 9 degrees as shown in fig. 11 b. Correspondingly, one side surface of the blade 101 may have a first edge surface 1013 and a second edge surface 1014, the first edge surface 1013 is located at an end of the blade 101 to connect to the other side surface of the blade 101, the second edge surface 1014 connects to the first edge surface, an included angle between the first edge surface 1013 and the other side surface of the blade 101 is a first included angle (for example, 20 degrees), an included angle between a plane where the second edge surface is located and a plane where the other side surface of the blade 101 is located is a second included angle (for example, 9 degrees), the second included angle is smaller than the first included angle, by the above design of single-side cutting edge and the two edge surfaces, sharpness of the edge may be ensured, when cutting the costal cartilage, under a downward force, a cutting feed may be facilitated, so that a cut surface of the cut costal cartilage piece is flatter and straighter.

In one embodiment, referring to fig. 12a and 12b, the costal cartilage slicer further includes at least one thickness block 107, each thickness block 107 includes a thickness portion 1072, and the thickness portions 1072 of different types of thickness blocks 107 have different thicknesses; each thickness block is mountable to the tool holder 105;

when different types of thickness blocks are selected, the spacing between the blade 101 and the stopper 102 in the reference direction (i.e., L shown in fig. 1) is different, and the different spacing corresponds to different slice thicknesses. Specifically, the thickness of the thickness portion 1072 of the thickness block 107 is D, where D and L are varied in synchronization, that is, if the thickness D of the thickness portion 1072 of the selected thickness block 107 is different, the above L is also different, and D and L themselves may be equal or different.

In one example, the stop 102 has a stop extension plate 1021 on the top, which may be integral with the stop 102 or assembled together. The thickness block 107 may be attached between the holder 105 and the stopper extension plate 1021 in the reference direction, and when the blade 101 is attached to the holder together with any one of the thickness blocks 107, the thickness portion 1072 of the thickness block 107 may be sandwiched between the holder 106 and the stopper extension plate 1021 in the reference direction, and further, the holder 106, the thickness portion 1072, and the stopper extension plate 1021 may be sequentially bonded in the reference direction. In other examples, other components may be disposed between the tool holder and the thickness portion, or between the thickness portion and the tool holder extension plate, and the configuration is not deviated from the description of the embodiment.

In this embodiment, the use of the thickness block 107 allows the L mentioned above to be adjusted by changing the position of the stopper 102 with respect to the tool holder 105, and in other embodiments, the L mentioned above may be adjusted by adjusting the position of the blade 101 or the tool holder 105, regardless of which mode does not depart from the description of the present embodiment.

It can be seen that, in the specific use process of the above scheme (for example, in the operation of nasal plastic surgery), the costal cartilage pieces need to be cut into costal cartilage pieces with different thicknesses, different personnel (for example, doctors) have different operation methods, the thickness of the costal cartilage pieces is different, and the thickness pieces have different thickness standards, such as: 1.0 millimeter, 1.5 millimeter, 2.0 millimeter, 2.5 millimeters, 3.0 millimeter, 3.5 millimeters, 4.0 millimeters, through the change of thickness piece, can be convenient for cut out the costal cartilage piece of different thickness to can guarantee that polylith costal cartilage piece thickness is identical.

In a specific implementation, the thickness block 107 may further include a thickness block base 1071, which may facilitate a thickness block mounting operation, for example, the thickness block base 1071 may be mounted by holding the thickness block base 1071 by hand, since the thickness of the thickness block base 1071 of each thickness block 107 is the same.

In a further aspect, the thickness portion 1072 may be provided with a slot 1073, and the fastener 110 may pass through the slot 1073, so as to achieve the positioning and installation of the thickness block 107 and clamp the thickness block 107, and at the same time, the position between the thickness block 107, the tool holder 105 and the stopper 102 may be fastened by fastening the fastener 110 and the butterfly nut 122.

In a further aspect, the thickness portion 1072 may further have a thickness block groove 1074, and a side of the tool holder 105 away from the fixing structure along the reference direction may further have a matching portion matching with the thickness block groove 1074, and further, the thickness block may be mounted on the matching portion (for example, a screw other than the fixing member 110), so as to further fix the position of the thickness block 107.

In one embodiment, referring to fig. 2, the costal cartilage slicer further includes a cutter withdrawing block 108 disposed on the tool holder 105, wherein the cutter withdrawing block 108 is configured to controllably press down the blade 101 disposed on the tool holder 105 to separate the blade 101 from the tool holder.

For example, referring to fig. 9 and 10, the connection surfaces of the locking slot 1011 and the clamping member 1091 may be both arc-shaped, and the axis of the arc-shape is along the reference direction, so that when the tool retracting block 108 is pushed downward to push the blade 101, the clamping member 1091 is pushed to overcome the second elastic member 1092 to move away from the blade 101, and further, the blade 101 can be pushed out to be disengaged from the receiving slot 1051 of the tool holder 105.

Therefore, the blade 101 can be smoothly ejected through the blade withdrawing block 108, and replacement is convenient.

In one embodiment, referring to fig. 13, the tool holder 105 is rotatably connected to the tool holder 114 by a fixing screw 119, and the fixing screw 119 is sleeved with a teflon washer and a washer 120. The teflon washer may include, for example, a teflon washer 118 and another teflon washer 121, and further, the teflon washer 121, the teflon washer 118 and the washer 120 may be sequentially distributed along the axial direction of the fixing screw 119. In addition, the tool holder 114 may be provided with an internal thread into which a set screw 119 may be screwed.

The teflon spacer and the washer 120 may be annular, and the teflon spacer may be tightly attached to the tool holder 114, so that friction between the tool holder 105 and the tool holder 114 may be reduced when the tool holder 105 is fixed, thereby increasing flexibility of the tool holder 105. The Teflon gasket is fixed on the fixing screw 19 and is tightly attached to the gasket 120, and when the knife rest 105 is fixed, the required damping force is provided by the left and right compression of the Teflon gasket, so that the flexibility is improved, and the knife rest 105 can not be influenced by gravity and automatically falls down.

In an example, referring to fig. 3 and 13, the tool holder 114 may further include a negative stop screw 123: when the fixing screw 119 is fixed, the retaining screw 29 can clamp the fixing screw 119 to ensure that the fixing screw 119 cannot be loosened by connecting 6 the tool apron washer 120 and the fixing screw 119.

In addition, in one embodiment, the base 113 may further be connected with a weight block, which may be disposed under the base 113 to increase the weight of the apparatus and prevent the apparatus from overturning during use. The bottom of the base 113 may further be provided with a foot pad 116, for example, a silica gel foot pad, or a foot pad made of other materials.

In conclusion, in the costal cartilage slicer provided by the embodiment, the costal cartilage block which needs to be sliced can be clamped by the chuck structure and the stop block, slicing can be implemented by the blade arranged on the tool rest, and meanwhile, as the blade and the stop block are arranged on the tool rest, the relative positions of the blade and the stop block can be fixed, and further, the thickness of the costal cartilage piece obtained by slicing can be uniform and consistent.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A costal cartilage slicer, comprising: the clamping device comprises a base, a cutter holder, a fixing structure, a chuck structure, a cutter frame and a stop block;

2. The costal cartilage slicer of claim 1, further comprising a resilient connection structure connecting the fixed structure and the collet structure at each end along the reference direction to provide a resilient force to the collet structure, the resilient force being a force capable of moving the collet structure away from the fixed structure along the reference direction.

3. The costal cartilage slicer according to claim 2, wherein the elastic connection structure comprises a first elastic component, a connecting rod and a ball head, one end of the connecting rod is connected with the fixing structure or penetrates through the fixing structure, the ball head is arranged at the other end of the connecting rod, the ball head is connected with the chuck structure, two ends of the first elastic component along the reference direction are respectively connected with the fixing structure and the chuck structure, and the chuck structure is provided with a groove body for embedding the ball head.

4. The costal cartilage slicer of claim 3, wherein the collet structure includes a collet body and a collet back plate, the collet back plate is connected to a side of the collet body opposite the stop, the collet back plate is connected to the ball.

5. The costal cartilage slicer according to any one of claims 1-4, further comprising a handle member that directly or indirectly drives the collet structure such that: when the handle part is operated and controlled to move along the reference direction, the chuck structure can be driven to move close to the fixed structure along the reference direction.

6. The costal cartilage slicer according to any one of claims 1 to 4, wherein the side of the collet structure opposite to the stop block is provided with a self-moving plate, and the fixing structure comprises a fixing block and a self-moving plate rail; the fixed block fixed connection in the base, move board track fixed connection certainly in the fixed block, the chuck structure is followed when the reference direction removes, move the board certainly can follow move the board track slides certainly.

7. The costal cartilage slicer of any one of claims 1 to 4 further comprising a blade holding structure, the blade holder having a receiving slot for receiving the blade, the blade holding structure for holding an edge of the blade in the receiving slot.

8. The costal cartilage slicer according to claim 7, further comprising a fastener and a limiting piece, wherein the limiting piece is mounted on the knife rest through the fastener, and the limiting piece is located on one side of the knife rest where the containing groove is located.

9. The costal cartilage slicer of claim 7 wherein the blade holding structure comprises a second elastic member and a holding member, at least two sides of the receiving slot are provided with track slots; the second elastic component is connected between the tool rest and the clamping piece along the direction of clamping the edge of the blade so as to push the clamping piece to clamp the edge of the blade, and the clamping piece is arranged in the track groove and moves along the track groove when pushed by the second elastic component.

10. The costal cartilage slicer of claim 9 wherein the blade is further provided with a slot for insertion of the holder.

11. The costal cartilage slicer of any one of claims 1 to 4, further comprising at least one thickness block, the thickness block comprising a thickness section, the thickness section thickness of different kinds of thickness blocks being different; each thickness block can be arranged on the tool rest;

12. The costal cartilage slicer of claim 11 wherein a stop extension plate is provided on the upper side of the stop, the thickness block is mountable between the tool holder and the stop extension plate in the reference direction, and when the blade is mounted on the tool holder with any one of the thickness blocks, the thickness portion of the thickness block is sandwiched between the tool holder and the stop extension plate in the reference direction.

13. The costal cartilage slicer of any one of claims 1-4 further comprising a tool retraction block provided on the tool holder for controlled depression of a blade provided on the tool holder to disengage the blade from the tool holder.

14. The costal cartilage slicer of any one of claims 1-4 wherein the knife holder is rotatably connected to the knife holder by a set screw, the set screw being sleeved with a Teflon washer and washer.