Surgical guide plate

Abstract

The utility model relates to an operation guide plate which comprises a main body part and a matching part, the main body part is detachably connected with the matching part, the matching part is provided with a matching surface, and the matching surface is used for being matched with the surface of a bone. The design period and the manufacturing period of the operation guide plate are both relatively short, so that the waiting period between the time when a patient confirms to accept a bone operation and the time when the patient is subjected to the bone operation is relatively short, the patient can accept treatment in time, and the treatment effect can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a surgical guide. Background Art

[0002] A surgical guide is a surgical auxiliary tool. During bone surgery, it can assist doctors in performing surgical operations such as positioning, guiding, and measuring, thereby improving the doctor's surgical accuracy and efficiency.

[0003] According to the physiological structure of different patients, the surgical guide needs to be customized.

[0004] However, in the prior art, the overall structure of the surgical guide is usually manufactured by an integrated molding process, which requires a long design time and production time, has low delivery efficiency, and is difficult to apply to patients who urgently need a surgical guide. Utility Model Content

[0005] In view of this, the present application provides a surgical guide, which is conducive to solving the problem that "the design time and production time of surgical guides in the existing technology are long, the delivery efficiency is low, and it is difficult to apply to patients who urgently need surgical guides."

[0006] The present application provides a surgical guide, which includes a main body and a matching piece. The matching piece is detachably connected to the main body, and the matching piece has a matching surface for matching with the surface of a bone.

[0007] Because the main component and the mating component are detachably connected, they can be manufactured separately. Specifically, the main component can be a universal or standard part pre-fabricated before the patient's visit, while the mating component can be a custom component (customized based on the surface shape, size, and other geometric features of the patient's bone) manufactured after the patient confirms that they are undergoing bone surgery. Because the mating component is smaller in size and volume than the surgical guide, it can be designed and manufactured quickly, or in other words, the design and manufacturing cycles required for the mating component are relatively short. After the customized mating component is manufactured, it is detachably connected to the pre-fabricated main component to form the surgical guide required by the user. Compared to conventional surgical guides, which require temporary design and customization due to the integrated molding of the overall structure, resulting in relatively long design and manufacturing cycles, the surgical guide of the present application has a relatively short design and manufacturing cycle, resulting in a relatively short waiting period between the patient confirming that they are undergoing bone surgery and the surgery being performed on them. This allows patients to receive treatment in a timely manner, which is beneficial for improving the treatment effect. In particular, compared with the surgical guides in the prior art, the surgical guide of the present application can be delivered to emergency patients who are in urgent need of treatment in a timely manner, so that emergency patients can also receive good surgical treatment.

[0008] Optionally, either the main body or the matching piece includes a receiving portion, and the other includes a connecting portion, and at least a portion of the connecting portion is installed in the receiving portion.

[0009] Optionally, the accommodating space formed by the accommodating portion passes through the main body or the matching component along the first installation direction of the connecting portion.

[0010] Optionally, the surgical guide includes at least two mating parts, each of the at least two mating parts is provided with a corresponding first through hole, each first through hole has a positioning port located on the corresponding mating surface; the line connecting the at least two positioning ports is a positioning reference line.

[0011] Optionally, the main body is provided with a second through hole, and the second through hole is connected to the first through hole.

[0012] Optionally, the main body includes a first part and a second part, and the second part is detachably connected to the matching part; the first part and the second part are detachably connected, or the second part extends from the first part and is formed integrally.

[0013] Optionally, if the first part and the second part are detachably connected, the first part is provided with a first connecting hole, the second part includes a first connecting member and a fastener, the first connecting member and the mating member are detachably connected, and the first connecting member is provided with a second connecting hole; the fastener is passed through the second connecting hole and extends into the first connecting hole, so that the first connecting member is fastened to the first part through the fastener.

[0014] Optionally, the first connecting member includes a connecting body and a limiting member, the connecting body is detachably connected to the mating member, the connecting body is provided with a second connecting hole, the limiting member is limitedly connected to the first part, and the limiting member is also limitedly connected to the connecting body to limit the rotation of the connecting body relative to the first part around the fastener.

[0015] Optionally, the first part includes a first inner wall for enclosing a first connecting hole, the first inner wall includes a first limiting portion, the connecting body includes a second inner wall for enclosing a second connecting hole, and the second inner wall includes a second limiting portion; at least part of the structure of the limiting member extends from the second connecting hole to the first connecting hole, the limiting member includes a third limiting portion and a fourth limiting portion, the third limiting portion is limitedly connected to the first limiting portion, and the fourth limiting portion is limitedly connected to the second limiting portion.

[0016] Optionally, the first limiting portion includes two first limiting surfaces that are oppositely arranged, and the third limiting portion includes two third limiting surfaces that are oppositely arranged, and each first limiting surface abuts against the corresponding third limiting surface;

[0017] And / or, the second limiting portion includes two oppositely disposed second limiting surfaces, the fourth limiting portion includes two oppositely disposed fourth limiting surfaces, and each second limiting surface abuts against the corresponding fourth limiting surface.

[0018] Optionally, the limiting component is provided with a third through hole, and the fastener is also passed through the third through hole.

[0019] Optionally, the limiting member includes a third part and a fourth part distributed along the axis of the third through hole, the third part includes a third limiting portion, and the fourth part includes a fourth limiting portion; either the third part or the fourth part includes at least two inserted parts distributed circumferentially around the axis of the third through hole, and the other includes an inserting part, which can be plugged into any inserted part to limit the rotation of the third part and the fourth part relative to each other around the axis of the third through hole.

[0020] Optionally, the first part is provided with a through space running through the first part, and the third inner wall of the first part used to enclose and form the through space includes a guide surface, and the guide surface is used to guide the surgical instrument to slide and / or rotate relative to the first part.

[0021] Optionally, the first part is provided with a third connection hole, and the third connection hole is used to be penetrated by a fixing pin connected to the bone.

[0022] Optionally, the main body includes a first part and a second part, the first part is rotatably connected to the second part, and the second part is detachably connected to the matching part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a schematic structural diagram of the surgical guide provided in this application in a first specific embodiment;

[0025] Figure 2 for Figure 1 A schematic structural diagram of the central body in a specific embodiment;

[0026] Figure 3 for Figure 1 A schematic structural diagram of the matching part in a specific embodiment;

[0027] Figure 4 It is a schematic diagram of the positioning port and positioning reference line;

[0028] Figure 5 is a schematic diagram of a first through hole and a second through hole;

[0029] Figure 6This is a schematic structural diagram of the surgical guide provided in this application in a second specific embodiment;

[0030] Figure 7 is a schematic cross-sectional structural diagram of a partial assembly of the first connecting member and the first portion in a specific embodiment;

[0031] Figure 8 A schematic diagram of a partially assembled cross-sectional structure of the first part and the second part in a specific embodiment;

[0032] Figure 9 It is a schematic exploded view of a local structure of the first part and the second part in a specific embodiment;

[0033] Figure 10 is a schematic diagram of a partial structure of the first part in a specific embodiment;

[0034] Figure 11 It is a structural schematic diagram of a limiting component in a specific embodiment;

[0035] Figure 12 It is a structural schematic diagram of a connecting body in a specific embodiment;

[0036] Figure 13 is a schematic cross-sectional structural diagram of a partial assembly of the first connecting member and the first portion in another specific embodiment;

[0037] Figure 14 is a schematic diagram of a partial structure of the first part in another specific embodiment;

[0038] Figure 15 is a structural schematic diagram of a connecting body in another specific embodiment;

[0039] Figure 16a It is a schematic cross-sectional structural diagram of the partial assembly of the first part and the second part in another specific embodiment;

[0040] Figure 16b is a schematic structural diagram of a position-limiting member in another specific embodiment;

[0041] Figure 16c is a schematic structural diagram of a limiting member in another specific embodiment;

[0042] Figure 16d Schematic diagram of the structure of a limiting member in yet another specific embodiment;

[0043] Figure 17a It is a schematic cross-sectional structural diagram of the partial assembly of the first part and the second part in another specific embodiment;

[0044] Figure 17bis a schematic diagram of a partial structure of the first part in another specific embodiment;

[0045] Figure 18 This is a schematic structural diagram of the surgical guide provided in this application in a third specific embodiment;

[0046] Figure 19 for Figure 18 Schematic diagram of the structure of the surgical guide from another perspective;

[0047] Figure 20 This is a schematic structural diagram of the surgical guide provided in this application in a fourth specific embodiment;

[0048] Figure 21 This is a schematic structural diagram of the surgical guide provided in this application in a fifth specific embodiment;

[0049] Figure 22 for Figure 21 Schematic diagram of the structure of the surgical guide from another perspective;

[0050] Figure 23 This is a schematic structural diagram of the sixth specific embodiment of the surgical guide provided in this application.

[0051] Reference numerals:

[0052] 100-surgical guide;

[0053] 10-main body;

[0054] 1-Part I;

[0055] 11-Plate body;

[0056] 111-first connecting hole;

[0057] 112- first inner wall;

[0058] 1121-first limiting surface;

[0059] 113- limiting recess;

[0060] 12-first boss;

[0061] 13-through space;

[0062] 14- guiding surface;

[0063] 15- second boss;

[0064] 16-third connecting hole;

[0065] 2- Part II;

[0066] 21- first connecting member;

[0067] 211-connection body;

[0068] 2111-accommodation part;

[0069] 2111a-accommodation space;

[0070] 2112-second through hole;

[0071] 2113-second connecting hole;

[0072] 2114-second inner wall;

[0073] 2114a- second limiting surface;

[0074] 212-limiting member;

[0075] 2121-Part III;

[0076] 2121a-third limiting surface;

[0077] 2121b-inserted part;

[0078] 2122-Part 4;

[0079] 2122a-fourth limiting plane;

[0080] 2122b-insertion part;

[0081] 2123-third through hole;

[0082] 213-limiting protrusion;

[0083] 22- fasteners;

[0084] 23-connecting shaft;

[0085] 20-matching piece;

[0086] 20a-first mating member;

[0087] 20b- second mating member;

[0088] 20c- third matching piece;

[0089] 201-matching surface;

[0090] 202-connecting part;

[0091] 203-first through hole;

[0092] 203a-Location port;

[0093] 204-Positioning reference line. DETAILED DESCRIPTION

[0094] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0095] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0096] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0097] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0098] The present application provides a surgical guide plate for use in the field of medical device technology. Figure 1 As shown, the surgical guide 100 includes a main body 10 and a fitting member 20 that are detachably connected. The fitting member 20 has a fitting surface 201 for fitting with the surface of a bone.

[0099] Please refer to Figure 1As shown, since the main member 10 and the mating member 20 are detachably connected, the main member 10 and the mating member 20 can be manufactured separately. Specifically, the main member 10 can be a universal or standard part pre-fabricated before the patient's visit, and the mating member 20 can be a customized part (customized based on the shape, size, and other geometric features of the patient's bone surface) manufactured after the patient confirms that they will undergo bone surgery. Because the mating member 20 is smaller in size and volume than the surgical guide 100, the mating member 20 can be quickly designed and manufactured, or in other words, the design and manufacturing cycles required for the mating member 20 are relatively short. After the customized mating member 20 is manufactured, it is detachably connected to the pre-fabricated main member 10 to form the surgical guide 100 required by the user. Compared to conventional surgical guides, which require temporary design and customization due to their integrally molded structure, resulting in relatively long design and production cycles, the surgical guide 100 of the present invention has a relatively short design and production cycle. This shortens the waiting period between a patient's confirmation of orthopedic surgery and the surgery being performed, allowing patients to receive timely treatment and improving treatment outcomes. In particular, compared to conventional surgical guides, the surgical guide 100 of the present invention can be delivered promptly to patients in urgent need of treatment, enabling them to receive effective surgical treatment.

[0100] The fitting 20 can be manufactured using 3D printing technology. Specifically, after a 3D model of the fitting 20 is formed based on the 3D model of the patient's skeleton in 3D modeling software, the 3D printing technology is used to manufacture a physical fitting 20 based on the 3D model of the fitting 20. Regarding the formation of the 3D model of the skeleton, a medical scanner is used to scan the patient's skeleton to form the 3D model. Regarding the formation of the 3D model of the fitting 20, after a basic 3D model (including the main body and connection structure of the fitting 20) is constructed in the 3D modeling software, a Boolean operation is performed on the basic 3D model and the 3D model of the skeleton to form a complex curved surface on the basic 3D model that can mate with the surface of the 3D model of the skeleton. This complex curved surface is the mating surface 201. Useful 3D printing technologies include, but are not limited to, stereolithography (SLA), digital light processing (DLP), 3D printing (3DP), multi-jet fusion (MJF), and various other types of 3D printing or additive manufacturing technologies known in the art. In another possible embodiment, a mold corresponding to the mating part 20 is printed using 3D printing technology, and then injection molding is performed in the mold to form the mating part 20. In another possible embodiment, the mating part 20 is formed by machining, and the specific machining process is not limited in this embodiment.

[0101] Furthermore, the manufacturing techniques for the main member 10 can refer to any of the aforementioned manufacturing techniques for the mating member 20 and will not be further elaborated here. While the main member 10 can be a prefabricated universal or standard component, the specifications of the main member 10 can also include a variety of specifications. Specifically, the specifications can include size, shape, angle, or other geometric features. Physicians can select prefabricated main members 10 of different specifications based on the specific conditions of different patients (e.g., different bone sizes).

[0102] Furthermore, the number of the matching components 20 included in the surgical guide 100 can be one, two, or more than two.

[0103] In addition, the detachable connection between the main body 10 and the fitting 20 may include at least one of a plug-in connection, a riveted connection, a magnetic connection, a threaded connection, and an adhesive connection.

[0104] Alternatively, see Figure 2 As shown, the main body 10 includes a receiving portion 2111, please refer to Figure 3 As shown, the mating component 20 includes a connecting portion 202. At least a portion of the connecting portion 202 is mounted within the receiving portion 2111, enabling a detachable connection between the connecting portion 202 and the receiving portion 2111. With this arrangement, the structure for the detachable connection between the main component 10 and the mating component 20 is relatively simple. Consequently, the design and production cycles for the mating component 20 are relatively short, and the patient's wait time for the surgical guide 100 is also relatively short.

[0105] In other embodiments (not shown in the figures), the main body 10 may include a connecting portion 202, and the mating portion 20 may include a receiving portion 2111, and at least part of the structure of the connecting portion 202 is installed in the receiving portion 2111, so that the connecting portion 202 and the receiving portion 2111 are detachably connected.

[0106] The following content of this article is mainly described by taking "the main body 10 includes the accommodating portion 2111, and the matching component 20 includes the connecting portion 202" as an example.

[0107] Please refer to Figure 2 As shown, the accommodating portion 2111 may be a groove structure, and accordingly, the accommodating space 2111 a formed by the accommodating portion 2111 may be a groove space.

[0108] In other embodiments (not shown in the figures), the accommodating portion 2111 may be a curved wall structure, and accordingly, the accommodating space 2111a formed by the accommodating portion 2111 may be a hole space.

[0109] The following content of this article is mainly described by taking "the accommodating portion 2111 is a groove structure, and the accommodating space 2111a formed by the accommodating portion 2111 is a groove space" as an example.

[0110] Alternatively, see Figure 2 and Figure 3 As shown, the cross-section of the accommodating space 2111a formed by the accommodating portion 2111 perpendicular to the first installation direction X of the connecting portion 202 is in the shape of a dovetail, and the cross-section of the connecting portion 202 perpendicular to the first installation direction X of the connecting portion 202 is in the shape of a dovetail. This arrangement can not only meet the requirement of the connecting portion 202 being installed into the accommodating space 2111a formed by the accommodating portion 2111, but also limit the connecting portion 202 from being separated from the accommodating portion 2111 along the directions Y and Z.

[0111] The first installation direction X is a direction in which at least a portion of the structure of the connecting portion 202 is installed into the accommodating space 2111 a .

[0112] In addition, direction Y and direction Z are perpendicular to direction X, and direction Y is perpendicular to direction Z.

[0113] Furthermore, the swallowtail can also be considered a trapezoid.

[0114] In other embodiments (not shown in the figures), the shape of the cross section of the connecting portion 202 perpendicular to the first installation direction X of the connecting portion 202 can also be cloud-shaped or T-shaped. Correspondingly, the shape of the cross section of the accommodating space 2111a formed by the accommodating portion 2111 perpendicular to the first installation direction X of the connecting portion 202 can also be cloud-shaped or T-shaped. The effect of this embodiment is the same as the above-mentioned effect of the dovetail shape, and will not be repeated here.

[0115] Optionally, the accommodating portion 2111 is further bonded to the connecting portion 202. In this arrangement, the connecting portion 202 is not easily separated from the accommodating portion 2111, and the structural reliability of the surgical guide 100 is high.

[0116] Optionally, the accommodating portion 2111 is also interference-fitted with the connecting portion 202 . Under this arrangement, the connecting portion 202 is not easily separated from the accommodating portion 2111 , and the structural reliability of the surgical guide 100 is relatively high.

[0117] Alternatively, see Figure 2 As shown, if the main body 10 includes a receiving portion 2111, the receiving space 2111a formed by the receiving portion 2111 extends through the main body 10 along the first installation direction X of the connecting portion 202. In this arrangement, at least a portion of the connecting portion 202 can be installed within the receiving space 2111a formed by the receiving portion 2111 not only along the first installation direction X, but also along a second installation direction (the opposite of the first installation direction X). Therefore, the surgical guide 100 offers a high degree of flexibility in selecting the installation direction, with at least one installation direction allowing the connecting portion 202 and the receiving portion 2111 to be installed together.

[0118] In other embodiments (not shown in the figures), if the main body 10 includes a accommodating portion 2111, the accommodating space 2111a formed by the accommodating portion 2111 may not pass through the main body 10 along the first installation direction X of the connecting portion 202, so that at least part of the structure of the connecting portion 202 can only be installed in the accommodating space 2111a formed by the accommodating portion 2111 along one direction (for example, the first installation direction X), and the side wall of the accommodating portion 2111 can abut against the connecting portion 202 to limit the connecting portion 202 from continuing to move along the first installation direction X.

[0119] In other embodiments (not shown), if the fitting 20 includes a receiving portion 2111 and the main body 10 includes a connecting portion 202 , the receiving space 2111 a formed by the receiving portion 2111 may penetrate the fitting 20 along the first installation direction X of the connecting portion 202 .

[0120] Alternatively, see Figure 1 As shown, the surgical guide 100 includes at least two matching pieces 20, each of which is provided with a corresponding Figure 3 The first through holes 203 shown in FIG. 203 each have a positioning port 203a located on the corresponding mating surface 201. Figure 4 As shown, the connecting line (dotted line) between at least two positioning ports 203a is the positioning reference line 204. The positioning port 203a is used to provide a point positioning reference for the doctor's surgical treatment, and the positioning reference line 204 is used to provide a line positioning reference for the doctor's surgical treatment, thereby improving the accuracy of the doctor's surgical operation.

[0121] The endpoint of the positioning reference line 204 may be located at the center of the positioning port 203 a .

[0122] In addition, the positioning method may include using an additional structural member to penetrate the first through hole 203 for contact positioning and using light to penetrate the first through hole 203 for optical positioning.

[0123] If the surgical guide 100 is a femoral guide, bone screws can be inserted through the first through-holes 203 and partially driven into the femur for contact positioning. Accordingly, the positions of the bone screws can also be used to provide a point positioning reference for the surgeon during surgical treatment, and the line connecting at least two bone screws can also be used to provide a line positioning reference for the surgeon during surgical treatment.

[0124] Alternatively, see Figure 2 As shown, the main body 10 is provided with a second through hole 2112. Figure 5As shown, the second through-hole 2112 is connected to the first through-hole 203. The second through-hole 2112 serves as a spatial extension of the first through-hole 203. Its function is the same as that of the first through-hole 203, providing a positioning reference for the surgeon. Furthermore, if bone screw positioning is employed, when the bone screw is inserted through the first through-hole 203 and the second through-hole 2112, it can restrict movement of the main component 10 and the mating component 20 in a direction parallel to the first installation direction.

[0125] Optionally, the diameters of the first through hole 203 and the second through hole 2112 may be the same or different.

[0126] Alternatively, in one embodiment, please refer to Figure 2 As shown, the main body 10 includes a first part 1 and a second part 2, the second part 2 is detachably connected to the mating part 20, and the second part 2 extends from the first part 1 and is integrally formed. This arrangement makes the structure of the main body 10 less complex and has a higher degree of structural reliability.

[0127] in, Figure 2 The number of second portions 2 shown may correspond to the number of fitting elements 20 .

[0128] Optionally, due to the different bone sizes of different patients, the relative positions of the first portion 1 and the fitting 20 may also vary from patient to patient. Therefore, in another embodiment, please refer to Figure 6 As shown, the first part 1 and the second part 2 are detachably connected. In this configuration, the first part 1 and the second part 2 can be prefabricated separately. The specifications of the first part 1 can include multiple specifications, and the specifications of the second part 2 can also include multiple specifications. Depending on the patient's condition, the doctor can select and combine one of the prefabricated first parts 1 and one of the prefabricated second parts 2 to form the main body 10 that fits the patient's bones.

[0129] The manner in which the first part 1 and the second part 2 are detachably connected may include at least one of a plug-in connection, a riveted connection, a magnetic connection, a threaded connection, and an adhesive connection.

[0130] in addition, Figure 6 The number of second portions 2 shown may correspond to the number of fitting elements 20 .

[0131] Alternatively, see Figure 7 As shown, the first part 1 is provided with a first connecting hole 111, please refer to Figure 8 As shown, the second part 2 includes a first connecting member 21 and a fastener 22. The first connecting member 21 is connected to the first connecting member 21 and the fastener 22. Figure 3 The matching piece 20 shown is detachably connected, and the first connecting piece 21 is provided with Figure 7 The second connecting hole 2113 is shown. The fastener 22 is passed through the second connecting hole 2113 and extends into the first connecting hole 111, so that the first connecting member 21 is fastened to the first part 1 through the fastener 22, thereby satisfying the above-mentioned setting of detachable connection between the first part 1 and the second part 2.

[0132] The fastener 22 may be a screw or a pin.

[0133] The first connecting member 21 may include the accommodating portion 2111 described above and be provided with the second through hole 2112 described above.

[0134] Alternatively, see Figure 8-Figure 9 As shown, the first connecting member 21 includes a connecting body 211 and a limiting member 212. The connecting body 211 is detachably connected to the matching member 20. Figure 7 As shown, the connecting body 211 is provided with a second connecting hole 2113. Figure 8 As shown, the limiting member 212 is connected to the first portion 1 in a limiting manner. The limiting member 212 is also connected to the connecting body 211 in a limiting manner to limit the rotation of the connecting body 211 relative to the first portion 1 around the fastener 22. In other words, it limits the rotation of the connecting body 211 relative to the first portion 1 around the axis O1. With this arrangement, the position of the mating component 20 relative to the first portion 1 is more accurately determined, thereby improving the adaptability of the surgical guide 100 to the anatomy of different patients.

[0135] The connecting body 211 may include the accommodating portion 2111 described above and may be provided with the second through hole 2112 described above.

[0136] In addition, the structure of the connecting body 211 can be a rod-shaped structure, a block-shaped structure or other structures.

[0137] Alternatively, see Figure 7 As shown, the first part 1 includes a first inner wall 112 for enclosing and forming a first connecting hole 111, the first inner wall 112 includes a first limiting portion, and the connecting body 211 includes a second inner wall 2114 for enclosing and forming a second connecting hole 2113, the second inner wall 2114 includes a second limiting portion. Figure 8-Figure 9At least a portion of the limiting member 212 extends from the second connection hole 2113 into the first connection hole 111. The limiting member 212 includes a third limiting portion and a fourth limiting portion. The third limiting portion is in position-limiting connection with the first limiting portion, and the fourth limiting portion is in position-limiting connection with the second limiting portion, thereby satisfying the aforementioned requirement of "limiting rotation of the connecting body 211 relative to the first portion 1 about the fastener 22." Furthermore, because at least a portion of the limiting member 212 is located within the connecting hole formed by the second connection hole 2113 and the first connection hole 111, the surgical guide 100 achieves a highly compact structure, resulting in a smaller size and easier operation by the surgeon.

[0138] The first connection hole 111 and the second connection hole 2113 are both special-shaped holes.

[0139] Alternatively, see Figure 10 As shown, the first limiting portion includes two first limiting surfaces 1121 arranged opposite to each other, please refer to Figure 11 As shown, the third limiting portion includes two third limiting surfaces 2121a arranged opposite to each other. Each first limiting surface 1121 abuts against the corresponding third limiting surface 2121a to form the above-mentioned setting of "the third limiting portion and the first limiting portion are in limiting connection".

[0140] The relative arrangement refers to an arrangement in which two features are staggered in a specific direction, and the specific direction may be perpendicular to the axis O1. The relative arrangement may also include a symmetrical arrangement.

[0141] In addition, please refer to Figure 10 As shown, the first limiting portion including the two first limiting surfaces 1121 may be in the shape of a tile.

[0142] Furthermore, please refer to Figure 10 As shown, the shape of the first connection hole 111 can be a cylindrical hole with a tile-shaped space subtracted from it.

[0143] In addition, please refer to Figure 11 As shown, the shape of the third limiting portion including the two third limiting surfaces 2121a can be tile-shaped.

[0144] In other embodiments (not shown), the first limiting portion may include a first curved surface that protrudes outward, and the third limiting portion may include a second curved surface that is recessed inward. The first curved surface and the second curved surface may cooperate to form the aforementioned arrangement of "the third limiting portion and the first limiting portion being in a position-limiting connection." Of course, the first limiting portion may also include a second curved surface that is recessed inward, and the third limiting portion may also include a first curved surface that protrudes outward.

[0145] Alternatively, see Figure 11As shown, the fourth limiting portion includes two fourth limiting surfaces 2122a arranged opposite to each other, please refer to Figure 12 As shown, the second limiting portion includes two oppositely disposed second limiting surfaces 2114a. Each second limiting surface 2114a abuts against the corresponding fourth limiting surface 2122a to form the above-mentioned setting of "the fourth limiting portion and the second limiting portion are in limiting connection".

[0146] The relative arrangement refers to an arrangement in which two features are staggered in a specific direction, and the specific direction may be perpendicular to the axis O1. The relative arrangement may also include a symmetrical arrangement.

[0147] In addition, please refer to Figure 11 As shown, the shape of the fourth limiting portion including the two fourth limiting surfaces 2122a can be a triangular prism.

[0148] Furthermore, please refer to Figure 12 As shown, the second inner wall 2114 may include a step structure to form a setting for the second connecting hole 2113 as a special-shaped hole.

[0149] In addition, please refer to Figure 12 As shown, the shape of the second connection hole 2113 can be a shape formed by combining a cylindrical hole and a triangular prism hole.

[0150] In other embodiments (not shown), the second limiting portion may include an outwardly protruding third curved surface, and the fourth limiting portion may include an inwardly recessed fourth curved surface. The second curved surface and the fourth curved surface may cooperate to form the aforementioned arrangement of "the second limiting portion and the fourth limiting portion being in a position-limiting connection." Of course, the second limiting portion may also include an inwardly recessed fourth curved surface, and the fourth limiting portion may also include an outwardly protruding third curved surface.

[0151] Alternatively, see Figure 11 As shown, the limiting member 212 is provided with a third through hole 2123. Figure 9 The fastener 22 shown is also provided through the Figure 11 The third through hole 2123 is shown. Under this configuration, the surgical guide 100 has a relatively high degree of structural compactness, so that the surgical guide 100 is relatively small in size and is convenient for operation by the doctor's hands.

[0152] In other embodiments, please refer to Figure 13-16aAs shown, the limiting member 212 may not be provided with the third through-hole 2123. The fastener 22 is only provided through the second connection hole 2113 and extends into the first connection hole 111. The limiting member 212 may be in the shape of a quadrangular prism. The limiting member 212 is provided through the second connection hole 2113 and extends into the first connection hole 111, that is, the limiting member 212 and the fastener 22 are arranged side by side. The first connection hole 111 and the second connection hole 2113 may both be shaped holes formed by a combination of a cylindrical hole and a quadrangular prism. A portion of the limiting member 212 is located within the quadrangular prism space of the first connection hole 111, and another portion of the limiting member 212 is located within the quadrangular prism space of the second connection hole 2113. The limiting member 212 is in surface contact with the first portion 1 to form a limiting connection. The limiting member 212 is in surface contact with the connecting body 211 to form a limiting connection, thereby limiting the rotation of the connecting body 211 relative to the first portion 1 about the axis O1.

[0153] The following content of this article is mainly described by taking “the limiting member 212 is provided with a third through hole 2123 , and the fastener 22 is passed through the third through hole 2123 ” as an example.

[0154] Alternatively, see Figure 16b-16c As shown, the limiting member 212 includes a third portion 2121 and a fourth portion 2122, arranged along the axis O1 of the third through-hole 2123. The third portion 2121 includes the third limiting portion described above, and the fourth portion 2122 includes the fourth limiting portion described above. The third portion 2121 may be provided with at least two inserted portions 2121b circumferentially distributed around the axis O1 of the third through-hole 2123, while the fourth portion 2122 may include an inserting portion 2122b. To adapt to different patient anatomy, the inserting portion 2122b can be plugged into different inserted portions 2121b, thereby changing the position of the fourth limiting portion on the fourth portion 2122 relative to the third limiting portion on the third portion 2121, changing the position of the connecting body 211, which is fixedly connected to the fourth limiting portion, relative to the first portion 1, which is fixedly connected to the third limiting portion, and changing the position of the mating component 20, which is connected to the connecting body 211, relative to the first portion 1, thereby improving the adaptability of the surgical guide 100 to different patients' anatomy. On the other hand, the plug-in connection between the inserting portion 2122b and the inserted portion 2121b can limit the connection between the third portion 2121 and the fourth portion 2122 to restrict the rotation of the third portion 2121 and the fourth portion 2122 relative to each other around the axis O1.

[0155] Wherein, under the condition that the inserting portion 2122b is plugged into different plugged portions 2121b, please refer to Figure 6 As shown, the deflection angle α of the fitting 20 relative to the first portion 1 is also different, and the deflection angle α can be in the range of 0° to 360°.

[0156] In addition, please refer to Figure 16b As shown, the inserting portion 2122b may be a columnar structure, and the inserted portion 2121b may be a recessed structure, and the inserted portion 2121b is surrounded to form a space that can accommodate the inserting portion 2122b.

[0157] In other embodiments (not shown in the figures), the third part 2121 may include an insertion portion 2122b, and the fourth part 2122 may be provided with at least two inserted portions 2121b distributed circumferentially around the axis O1 of the third through hole 2123, and the insertion portion 2122b may be plugged into any inserted portion 2121b to meet the above-mentioned effects of "changing the position of the mating part 20 connected to the connecting body 211 relative to the first part 1" and "to limit the rotation of the third part 2121 and the fourth part 2122 relative to each other around the axis O1".

[0158] Please refer to Figure 16c-16d As shown, the inserting portion 2122b and the inserted portion 2121b can both be tooth-like structures, and the inserting portion 2122b can be plugged into the inserted portion 2121b at multiple angles, or in other words, the inserting portion 2122b and the inserted portion 2121b can be meshed and connected to meet the above-mentioned effects of "changing the position of the mating part 20 connected to the connecting body 211 relative to the first part 1" and "to limit the rotation of the third part 2121 and the fourth part 2122 relative to each other around the axis O1".

[0159] Please refer to Figure 16c As shown, the inserting portion 2122b and the inserted portion 2121b are both sharp teeth, or, please refer to Figure 16d As shown, the inserting portion 2122b and the inserted portion 2121b are both rectangular teeth.

[0160] Optionally, the main body 10 includes a first part 1 and a second part 2 , the first part 1 is rotatably connected to the second part 2 , and the second part 2 is detachably connected to the fitting 20 .

[0161] Alternatively, see Figure 17a As shown, the second part 2 includes a first connecting member 21 and a connecting shaft 23, the first connecting member 21 is rotatably connected to the connecting shaft 23, and a part of the connecting shaft 23 is also detachably connected to the first connecting hole 111 of the first part 1 (threaded connection or interference fit), based on Figure 17a In the structure shown, the first connecting member 21 abuts against the first part 1. The first connecting member 21 also includes a limiting protrusion 213, and the first part 1 also includes a limiting recess 113. The limiting protrusion 213 cooperates with the limiting recess 113 to limit the rotation of the first connecting member 21 relative to the first part 1 around the axis O1. Figure 17bAs shown, the first portion 1 includes at least two limiting recesses 113 distributed circumferentially around the axis O1. In this arrangement, the limiting protrusion 213 can cooperate with any of the limiting recesses 113. Specifically, under the action of an external force, the limiting protrusion 213 can separate from one of the limiting recesses 113, allowing the first connector 21 to rotate relative to the first portion 1 about the axis O1. After the limiting protrusion 213 cooperates with the other limiting recess 113, the rotation of the first connector 21 relative to the first portion 1 about the axis O1 is re-restricted. Based on the skeletal conditions of different patients, the doctor can change the position of the first connector 21 relative to the first portion 1 to change the position of the mating member 20 connected to the first connector 21 relative to the first portion 1, thereby improving the adaptability of the surgical guide 100 to the anatomy of different patients.

[0162] In other embodiments (not shown in the figures), the first connecting member 21 may include at least two limiting recesses 113 distributed circumferentially around the axis O1, and the first part 1 may include a limiting protrusion 213, which can cooperate with any limiting recess 113. The arrangement of this embodiment can also improve the adaptability of the surgical guide 100 to the bones of different patients.

[0163] In other embodiments (not shown), the first connecting member 21 may not include the limiting protrusion 213, and the first portion 1 may not include the limiting recess 113. After the doctor rotates the first connecting member 21 relative to the first portion 1 to a predetermined position, he or she may secure the first connecting member 21 and the first portion 1 by bonding, thereby also limiting the rotation of the first connecting member 21 relative to the first portion 1 about the axis O1.

[0164] Alternatively, see Figure 2 As shown, the first part 1 is provided with a through space 13 running through the first part 1 , and the third inner wall in the first part 1 for enclosing and forming the through space 13 includes a guide surface 14 , which can be used to guide the movement direction of the surgical instrument relative to the first part 1 .

[0165] Among them, the through space 13 can be a rectangular space, and accordingly, the third inner wall can include two parallel and oppositely arranged guide surfaces 14, which can be used to guide the osteotomy tool to slide along a set direction relative to the first part 1, thereby improving the osteotomy accuracy of the osteotomy tool.

[0166] In other embodiments (not shown in the figures), the through space 13 may be a hole space, and accordingly, the third inner wall includes a curved guide surface 14, which is used to guide the surgical nail or surgical needle to move along the axis of the hole space, thereby improving the accuracy of the corresponding surgical operation.

[0167] Please refer to Figure 2As shown, the first part 1 includes a plate body 11 and a first boss 12 . The plate body 11 and the first boss 12 are integrally formed, and a through space 13 extends from the plate body 11 to the first boss 12 .

[0168] Alternatively, see Figure 2 As shown, the first part 1 is provided with a third connection hole 16, which is used to be penetrated by a fixing nail (not shown in the figure) connected to the bone, so that the first part 1 can be fixedly connected to the bone through the fixing nail.

[0169] Alternatively, see Figure 2 As shown, the first part 1 includes a plate body 11 and a second boss 15 , the plate body 11 and the second boss 15 are integrally formed, and the third connecting hole 16 passes through the plate body 11 and extends from the plate body 11 to the second boss 15 .

[0170] The surgical guide 100 described in any of the above embodiments can be a surgical guide for any bone type, such as a femoral surgical guide, a tibial surgical guide, a limb surgical guide, a spinal surgical guide, a hip surgical guide, a shoulder surgical guide, and an elbow surgical guide.

[0171] Taking the surgical guide 100 as a femoral surgical guide as an example, please refer to Figure 6 As shown, the surgical guide 100 may include three mating components 20, such as a first mating component 20a, a second mating component 20b, and a third mating component 20c. The mating surface 201 of the first mating component 20a is used to mate with the surface of the anterior condyle of the femur, the mating surface 201 of the second mating component 20b is used to mate with the surface of the medial condyle of the femur, and the mating surface 201 of the third mating component 20c is used to mate with the surface of the lateral condyle of the femur.

[0172] Taking surgical guide 100 as a tibial surgical guide as an example, please refer to Figures 18-20 As shown, the surgical guide 100 may include two mating parts 20, such as a first mating part 20a and a second mating part 20b, wherein the mating surface 201 of the first mating part 20a is used to mate with the surface of the tibial plateau, and the mating surface 201 of the second mating part 20b is used to mate with the surface of the anterior tibia.

[0173] Taking the surgical guide 100 as an example, please refer to Figure 21-23 As shown, the surgical guide 100 may include two mating components 20, such as a first mating component 20a and a second mating component 20b. The mating surface 201 of the first mating component 20a is configured to mate with the surface of a target bone surface on a limb, and the mating surface 201 of the second mating component 20b is also configured to mate with the surface of a target bone surface on a limb. The target bone surface is a non-articular portion of a limb skeleton.

Claims

1. A surgical guide, characterized in that: It includes a main body and a mating part, the main body includes a first part and a second part, the first part is provided with a first connecting hole, the second part includes a first connecting part and a fastener, the first connecting part includes a connecting body and a limiting member, the connecting body and the mating part are detachably connected, the mating part has a mating surface, and the mating surface is used to cooperate with the surface of the bone, the connecting body is provided with a second connecting hole, the fastener is passed through the second connecting hole and extends into the first connecting hole, so that the connecting body is fastened to the first part through the fastener, and the first part and the connecting body are both limitedly connected to the limiting member to limit the rotation of the connecting body around the fastener relative to the first part.

2. The surgical guide according to claim 1, wherein: The first part includes a first inner wall for enclosing and forming the first connecting hole, the first inner wall includes a first limiting portion, and the connecting body includes a second inner wall for enclosing and forming the second connecting hole, the second inner wall includes a second limiting portion; At least part of the structure of the limiting member extends from the second connecting hole into the first connecting hole. The limiting member includes a third limiting portion and a fourth limiting portion. The third limiting portion is connected to the first limiting portion in a limiting manner, and the fourth limiting portion is connected to the second limiting portion in a limiting manner.

3. The surgical guide according to claim 2, characterized in that: The first limiting portion includes two first limiting surfaces arranged opposite to each other, and the third limiting portion includes two third limiting surfaces arranged opposite to each other, and each first limiting surface abuts against the corresponding third limiting surface; And / or, the second limiting portion includes two oppositely disposed second limiting surfaces, the fourth limiting portion includes two oppositely disposed fourth limiting surfaces, and each second limiting surface abuts against the corresponding fourth limiting surface.

4. The surgical guide according to claim 2, wherein: The limiting component is provided with a third through hole, and the fastener is also passed through the third through hole.

5. The surgical guide according to claim 4, characterized in that: The limiting member includes a third portion and a fourth portion distributed along the axis of the third through hole, the third portion includes the third limiting portion, and the fourth portion includes the fourth limiting portion; Either the third part or the fourth part includes at least two inserted parts distributed circumferentially around the axis of the third through hole, and the other includes an inserting part, which can be plugged into any of the inserted parts to limit the rotation of the third part and the fourth part relative to each other around the axis of the third through hole.

6. The surgical guide according to any one of claims 1 to 5, characterized in that: The first part is provided with a through space running through the first part, and the third inner wall of the first part used for enclosing and forming the through space includes a guide surface, and the guide surface is used for guiding the surgical instrument to slide and / or rotate relative to the first part.

7. The surgical guide according to any one of claims 1 to 5, characterized in that: The first portion is provided with a third connection hole, and the third connection hole is used for passing a fixing pin connected to the bone.

8. The surgical guide according to any one of claims 1 to 5, characterized in that: Either one of the connecting body and the fitting includes a receiving portion, and the other includes a connecting portion, wherein at least a portion of the connecting portion is installed in the receiving portion.

9. The surgical guide according to claim 8, characterized in that: The accommodating space formed by the accommodating portion passes through the connecting body or the matching piece along the first installation direction of the connecting portion.

10. The surgical guide according to any one of claims 1 to 5, characterized in that: The surgical guide includes at least two mating parts, each of which is provided with a corresponding first through hole, each of which has a positioning port located on the corresponding mating surface, and the line connecting at least two of the positioning ports is a positioning reference line.

11. The surgical guide according to claim 10, characterized in that: The connecting body is provided with a second through hole, and the second through hole is communicated with the first through hole.

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