CN217938354U

CN217938354U - Acetabulum side guide module and hip joint guide system

Info

Publication number: CN217938354U
Application number: CN202220241448.2U
Authority: CN
Inventors: 鄢正清; 孙延东; 刘哲
Original assignee: Suzhou Microport Orthorecon Co Ltd
Current assignee: Suzhou Microport Orthorecon Co Ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-12-02
Anticipated expiration: 2032-01-28
Also published as: CN219271092U

Abstract

The utility model provides an acetabulum side guide module and a hip joint guide system; the acetabulum side guide module is used for being arranged at a first predetermined position so as to guide a first operation direction relative to the first predetermined position, wherein the first predetermined position comprises at least three target positions; the acetabulum side guide module comprises: a positioning component and a guiding component; the positioning assembly comprises a first positioning surface and a first guide part, and the first positioning surface is used for being attached to at least three target positions of a first preset part; the first guide part is used for allowing the first positioning piece to penetrate through so as to enable the first positioning piece to be fixed on a first preset part; the guide assembly comprises a second positioning surface, a second guide part and a first guide part, and the second positioning surface is used for being attached to at least one target position of the first preset part after the positioning assembly is removed; the second guide part is used for the first positioning piece to penetrate; the first guide portion is used for guiding a first operation direction.

Description

Acetabulum side guide module and hip joint guide system

Technical Field

The utility model relates to the technical field of medical equipment, in particular to acetabulum side guide module and hip joint guide system.

Background

Total Hip Arthroplasty (THA) is an important treatment for hip joint diseases such as femoral head necrosis and hip joint dysplasia. In recent years, with advances in surgical techniques and continuous optimization of surgical access, THA has become accepted by more physicians and patients. However, the THA learning curve is long, and the requirements for experience of the operator, preoperative planning and intraoperative operation are high, so that the hip joint operation guiding device is produced accordingly. The hip joint operation guiding device is based on medical image data of a patient, an interest area is segmented by digital software according to clinical requirements, three-dimensional reconstruction of a model is completed, then processing is carried out according to parameters related to clinical requirements, operation access and exposure range, and an intraoperative navigation device with guiding function is designed according to the parameters; it can assist the operator to complete the operation more accurately and efficiently, shorten the learning curve and improve the clinical effect of the operation.

At present, some hip joint guiding devices also exist, but the hip joint guiding devices are often attached unstably, so that the problems of increased operation steps, large operation wounds, low operation precision and the like are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an acetabular bone side guide module and hip joint guide system to solve the problem that current hip joint guiding device was brought by the laminating unstability.

In order to solve the above technical problem, a first aspect of the present invention provides an acetabulum-side guiding module, configured to be disposed at a first predetermined location to guide a first operation direction relative to the first predetermined location, wherein the first predetermined location includes at least three target positions; the acetabulum side guide module comprises: a positioning component and a guiding component;

the positioning assembly comprises a first positioning surface and a first guide part, and the first positioning surface is used for being attached to at least three target positions of the first preset part; the first guide part is used for allowing a first positioning piece to penetrate through so as to enable the first positioning piece to be fixed on the first preset part;

the guide assembly comprises a second positioning surface, a second guide part and a first guide part, and the second positioning surface is used for being attached to at least one target position of the first preset part after the positioning assembly is removed; the second guide part is used for the first positioning piece to penetrate;

the first guide portion is used for guiding the first operation direction.

Optionally, in the acetabulum side guide module, the positioning assembly includes first and second separable sub-pieces, the first positioning surface spans the first and second sub-pieces, and the first and second sub-pieces are respectively used for fitting at least one target position.

Optionally, in the acetabulum-side guiding module, the positioning assembly includes a first holding portion, and the first holding portion is disposed opposite to the first positioning surface.

Optionally, in the acetabulum side guide module, the guide assembly comprises a third guide part, and the extension direction of the third guide part is arranged in a different plane from the extension direction of the second guide part; the third guiding part is used for the second positioning piece to penetrate through and be fixed on the first preset part.

Optionally, in the acetabulum side guide module, the positioning assembly comprises at least two first guide portions; the guide assembly includes at least two of the second guide portions.

In order to solve the above technical problem, a second aspect of the present invention provides a femoral-side guiding module, configured to be disposed at a second predetermined location to guide a second operation direction relative to the second predetermined location; wherein the second predetermined portion is a non-circular shaped portion; the femoral side guide module includes: the third positioning surface, the fourth guide part and the second guide part;

the third positioning surface is used for being attached to the second preset part;

the fourth guide part is used for the third positioning piece to penetrate through and be fixed on the second preset part;

the second guide portion is used for guiding the second operation direction.

Optionally, in the femoral-side guiding module, the fourth guiding portion includes at least two guiding holes, and the guiding holes penetrate through the third positioning surface and have at least two intersection points with the third positioning surface.

Optionally, in the femoral side guiding module, the femoral side guiding module includes a second holding portion, and the second holding portion and the third positioning surface are disposed at the back side.

Optionally, in the femoral side guide module, the second guide portion includes at least two guide surfaces arranged at an angle, and the second operating direction includes at least two sub-operating directions, each of the guide surfaces being used to guide one of the sub-operating directions.

In order to solve the above technical problem, a third aspect of the present invention provides a hip joint guiding system, which includes the acetabulum side guiding module and the femur side guiding module as described above.

To sum up, the present invention provides an acetabulum side guide module for being disposed at a first predetermined location to guide a first operation direction relative to the first predetermined location, wherein the first predetermined location includes at least three target positions; the acetabulum side guide module comprises: a positioning component and a guiding component; the positioning assembly comprises a first positioning surface and a first guide part, and the first positioning surface is used for being attached to at least three target positions of the first preset part; the first guide part is used for allowing a first positioning piece to penetrate through so as to enable the first positioning piece to be fixed on the first preset part; the guide assembly comprises a second positioning surface, a second guide part and a first guide part, and the second positioning surface is used for being attached to at least one target position of the first preset part after the positioning assembly is removed; the second guide part is used for the first positioning piece to penetrate; the first guide portion is used for guiding the first operation direction.

So the configuration, through the first locating surface laminating first predetermined position's of locating component at least three target location, locating component can accurately place steadily to guarantee positioning accuracy. After the positioning assembly determines the position, the first positioning member can be fixed on the first preset position through the first guide part. And then remove positioning element, with at least one target location of the first predetermined position of second locating surface laminating of guide assembly, utilize first locating piece to penetrate the second guide part, can be fixed a position guide assembly on first predetermined position according to predetermined direction to make guide assembly's first guide part can guide first operation direction accurately reliably, be convenient for the art person to operate.

Drawings

Those skilled in the art will appreciate that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

FIG. 1 is a schematic view of a positioning assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of another orientation of the positioning assembly of an embodiment of the present invention;

fig. 3 is a schematic view of a guide assembly of an embodiment of the present invention;

fig. 4 is a schematic view of another preferred example of a guide assembly of an embodiment of the present invention;

fig. 5a is a schematic view of a second preferred example of a positioning assembly of an embodiment of the present invention;

fig. 5b is a schematic view of a third preferred example of a positioning assembly of an embodiment of the present invention;

fig. 6 is a schematic view of a femoral side guide module in accordance with an embodiment of the present invention;

fig. 7 is a schematic view of another orientation of the femoral side guide module according to an embodiment of the present invention.

In the drawings:

1-a positioning assembly; 11-a first location face; 12-a first guide; 13-a first sub-piece; 14-a second sub-part; 15-a first grip;

2-a guide assembly; 21-a second positioning surface; 22-a second guide; 23-a first guide; 24-a third guide;

3-femoral side guide module; 31-a third positioning surface; 32-a fourth guide; 321-a guide hole; 33-a second guide; 331-a guide surface; 34-second grip.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings are intended to show different emphasis, sometimes in different proportions.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a", "an" and "the" are generally employed in a sense including "at least one", the terms "at least two" and "two or more" are generally employed in a sense including "two or more", and moreover, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or imply that there is a number of technical features being indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or at least two of that feature, "one end" and "the other end" and "proximal end" and "distal end" generally refer to the corresponding two parts, including not only the endpoints. Furthermore, as used in the present application, the terms "mounted," "connected," and "disposed" on another element should be construed broadly, and generally only mean that there is a connection, coupling, fit, or drive relationship between the two elements, and that the connection, coupling, fit, or drive between the two elements can be direct or indirect through intervening elements, and should not be construed as indicating or implying any spatial relationship between the two elements, i.e., an element can be located in any orientation within, outside, above, below, or to one side of another element unless the content clearly dictates otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. Moreover, directional terminology, such as above, below, up, down, upward, downward, left, right, etc., is used with respect to the exemplary embodiments as they are shown in the figures, with the upward or upward direction being toward the top of the corresponding figure and the downward or downward direction being toward the bottom of the corresponding figure.

An object of the utility model is to provide an acetabular bone side guide module, thighbone side guide module and hip joint guide system to solve the problem that current hip joint guiding device was brought by the laminating unstability.

Generally, for Total Hip Arthroplasty (THA), a separate surgical procedure is required for the femoral and acetabular sides. Hip joint guide systems may therefore often include an acetabular side guide module and a femoral side guide module.

The inventor finds that the acetabulum side guide module of the existing hip joint guide device usually takes an acetabulum socket as a fitting position, however, cartilage exists at the acetabulum socket, and the acetabulum cartilage can not be reflected in CT image data, so that when the acetabulum side guide module designed based on the CT image data is placed, partial or all acetabulum cartilage needs to be stripped, thereby increasing the operation steps, easily reducing the operation precision, increasing the injury suffered by a patient on the other hand and being not beneficial to the postoperative recovery of the patient.

The inventor finds that the existing femur side guiding module is usually attached by taking the anatomical structure of the femoral head or the femoral neck as a bony mark. However, since the shape of the femoral head is similar to spherical and the femoral neck is similar to cylindrical, when an operator places the femoral side guide module in an operation, deviation is easily generated between the operator and a planned fitting position, so that the operation precision is reduced; in addition, the conventional femoral side guiding module usually needs to expose more femoral heads for better fitting bone surfaces, so that an operation wound is increased, and the method is contradictory to a minimally invasive concept and is not beneficial to postoperative rehabilitation of a patient.

Referring to fig. 1 to 5b, based on the above research, an embodiment of the present invention provides an acetabulum-side guiding module, configured to be disposed at a first predetermined location to guide a first operation direction relative to the first predetermined location, wherein the first predetermined location includes at least three target positions; the acetabulum side guide module comprises: a positioning component 1 and a guide component 2; the positioning assembly 1 comprises a first positioning surface 11 and a first guide part 12, wherein the first positioning surface 11 is used for fitting at least three target positions of the first preset part; the first guide part 12 is used for a first positioning element to penetrate through so as to fix the first positioning element on the first preset part; the guide assembly 2 comprises a second positioning surface 21, a second guide part 22 and a first guide part 23, wherein the second positioning surface 21 is used for being attached to at least one target position of the first preset part after the positioning assembly 1 is removed; the second guiding part 22 is used for the first positioning piece to penetrate; the first guide portion 23 is used to guide the first operation direction.

For convenience of description, the present embodiment is described with an acetabulum as an example of the first predetermined portion. It should be noted that the acetabulum is only an example of the predetermined object, and is not a limitation of the first predetermined portion. Under some other application scenarios, can also regard as first predetermined position with acetabular bone prosthesis, animal's acetabular bone model etc. and utilize the operation such as the acetabular bone side guide module that this embodiment provided to simulate operation or application of force mark to it, the utility model discloses it is not limited to this. Further, the acetabulum comprises at least three target positions, and the present embodiment is described by taking an oval socket in the acetabulum socket, an acetabulum notch indentation and an acetabulum outer edge opposite to the acetabulum notch as examples of the three target positions of the acetabulum, and it can be understood that the three target positions are also only examples of the target positions of the acetabulum and are not limited thereto. Under some other application scenarios, can also select more quantity of target location or other parts of acetabular bone as the target location, the utility model discloses it is not limited to this. Further, the first operating direction refers to the direction of insertion of the acetabular file and the direction of implantation of the prosthesis.

Alternatively, the shape of the first locating surface 11 may be customized by reconstructing medical image data (e.g., CT image data) of the acetabulum. Because the first positioning surface 11 can be attached to at least three target positions of the first predetermined position, namely at least an acetabulum fossa, an acetabulum incisure notch and an acetabulum outer edge opposite to the acetabulum incisure notch, the positioning assembly 1 can be reliably positioned on the acetabulum without stripping acetabulum cartilage, on one hand, the operation steps are simplified, the operation precision is ensured, on the other hand, the injury to a patient is reduced, and the postoperative recovery of the patient is facilitated.

In the example shown in fig. 1 and 2, the positioning element 1 may be a block, the first positioning surface 11 may be an outer surface of the block, the first guide portion 12 may be a guide hole formed through the block, and the first positioning member may be a positioning pin. Preferably, the positioning assembly 1 comprises at least two first guiding portions 12, i.e. the positioning assembly 1 comprises at least two guiding holes, preferably parallel to each other. After the first locating surface 11 conforms to the three target locations, the position of the positioning assembly 1 relative to the acetabulum is determined. At the moment, the positioning nail is nailed into the acetabulum along the guide hole, so that the positioning nail is positioned on the acetabulum according to the preoperative planned position. It can be understood that, in some other embodiments, the first guiding portion 12 is not limited to be a guiding hole, it may also be a guiding groove, and the first positioning element is not limited to be a positioning nail, it may also be a positioning screw, and the like, which can achieve similar effects, and the present invention is not limited thereto. Preferably, the first guide portion 12 is disposed near the posterior edge of the acetabulum or the outer edge of the acetabulum opposite to the notch of the acetabulum to avoid the penetration of the positioning nail. The first positioning piece can also retract the posterior muscles (such as the posterior part of the tensor fascia lata, gluteus maximus and the like) when the acetabulum is exposed after being nailed into the acetabulum.

In the example shown in fig. 3, the guide element 2 may be, for example, a rod-shaped body, the second positioning surface 21 being located at one axial end of the rod-shaped body. The second guide portion 22 extends in the axial direction of the rod-shaped body. After the step of driving the first locator into the acetabulum is completed, the locating assembly 1 can be removed, thereby locating the guide assembly 2 on the acetabulum. Specifically, the second positioning surface 21 is attached to at least one target position of the acetabulum, for example, the second positioning surface 21 is attached to the outer edge of the acetabulum opposite to the notch of the acetabulum. Alternatively, the shape of the second positioning surface 21 may be customized by reconstructing a customized design from medical image data (e.g., CT image data) of the acetabulum. Of course, in other embodiments, the second positioning surface 21 is not limited to fit the outer edge of the acetabulum opposite to the notch of the acetabulum, and may also fit other parts of the acetabulum, and those skilled in the art can configure the positioning surface according to the actual requirements.

In an alternative example, the second guiding portion 22 may be a guiding hole opened therethrough, and preferably, the guiding assembly 2 includes at least two guiding portions 22, that is, the guiding assembly 2 includes at least two guiding holes, and the two guiding holes are preferably parallel to each other. Before the second positioning surface 21 is attached to the target position, the guide hole of the second guide portion 22 may be aligned with the first positioning member. And then the guide component 2 is close to the acetabulum, the first positioning part penetrates into the guide hole until the second positioning surface 21 is attached to the target position, and the guide component 2 is positioned on the acetabulum. It is understood that in other embodiments, the second guiding portion 22 is not limited to be a guiding hole, but may also be a guiding groove, etc., which can achieve similar effects, and the present invention is not limited thereto. Furthermore, the number of the second guiding portions 22 is the same as that of the first guiding portions 12, and the distribution positions of the second guiding portions 22 on the guiding assembly 2 are also the same as that of the first guiding portions 12 on the positioning assembly 1, so that the first positioning members nailed into the first guiding portions 12 can correspond to the second guiding portions 22 one by one, and the installation accuracy of the guiding assembly 2 is ensured.

In an alternative embodiment, as shown in fig. 3, the first guide portion 23 may have a tile shape, i.e. a part of a cylinder shape cut along the axial direction. The shape of the concave portion of the first guide 23 matches the profile of the acetabular burr link, whereby the first guide 23 guides the first operating direction, i.e. the direction of insertion of the acetabular burr and the direction of implantation of the prosthesis. The first guide portion 23 is used for guiding the first operation direction and also for being held by an operator. The first guide portion 23 should have a certain extension length along its axial direction to facilitate gripping. In another alternative embodiment, as shown in fig. 4, the first guiding portion 23 may also be in a column shape, although those skilled in the art may select other shapes for the first guiding portion 23 according to practical applications, and the invention is not limited thereto. Preferably, the axial direction of the first guide portion 23 is parallel to the axial direction of the rod-shaped body of the guide assembly 2, and also parallel to the extension direction of the second guide portion 22, and also coincides with the preoperative planned direction.

Therefore, after the guide assembly 2 is positioned on the acetabulum, the acetabular file and the prosthesis to be implanted can be accurately inserted for operation under the guidance of the first guide part 23. The location position of guide assembly 2 is accurate, and the laminating is fixed comparatively stable, has effectively improved the operation precision, and first guide portion 23 also can accurately guide first operation direction reliably, the operation of the operative of being convenient for person.

Further, with continued reference to fig. 3 and 4, the guiding assembly 2 includes a third guiding portion 24, and an extending direction of the third guiding portion 24 is disposed opposite to an extending direction of the second guiding portion 22; the third guiding portion 24 is used for the second positioning element to penetrate through. In an exemplary embodiment, the third guiding portion 24 may be a guiding hole formed therethrough, the second positioning member may be a positioning nail, the positioning nail can be screwed on the acetabulum through the guiding hole, and the third guiding portion 24 and the second guiding portion 22 are crossed and dislocated in different directions without interfering with each other due to the different surfaces of the extending direction of the third guiding portion and the extending direction of the second guiding portion, so as to facilitate the penetration of the second positioning member, and on the other hand, the second positioning member can provide another direction for fixing the guiding assembly 2 after being screwed into the acetabulum, thereby firmly and reliably fixing the guiding assembly 2 on the acetabulum.

Referring to fig. 5a and 5b, preferably, the positioning assembly 1 includes a first sub-member 13 and a second sub-member 14 which are separable, the first positioning surface 11 spans the first sub-member 13 and the second sub-member 14, and the first sub-member 13 and the second sub-member 14 are respectively used for fitting at least one target position. The first positioning surface 11 spans the first sub-part 13 and the second sub-part 14 means that when the first sub-part 13 and the second sub-part 14 are combined, the first positioning surface 11 spans the boundary line of the first sub-part 13 and the second sub-part 14, so that the first sub-part 13 and the second sub-part 14 are separated and have a part of the first positioning surface 11 thereon. Considering that the three target positions to which the first positioning surface 11 is attached are actually spatial positions with concave-convex portions, there may be difficulty in attaching and detaching the first positioning surface 11 to and from the acetabulum, i.e., difficulty in being snapped in or being removed after being snapped in. In order to facilitate the installation and the removal of the positioning assembly 1, the positioning assembly 1 is configured to be split, so that the installation and the removal can be facilitated. Alternatively, the first sub-part 13 and the second sub-part 14 may be connected by a snap connection. The present embodiment does not particularly limit the dividing arrangement of the first sub-member 13 and the second sub-member 14, and fig. 5a and 5b respectively show two different dividing arrangements, wherein fig. 5a shows that the first sub-member 13 and the second sub-member 14 are arranged in a vertically divided arrangement, and fig. 5a shows that the first sub-member 13 and the second sub-member 14 are arranged in a horizontally divided arrangement. It can be understood that a person skilled in the art may also arrange the first sub-element 13 and the second sub-element 14 in other dividing arrangements, which is not limited in the embodiment.

Optionally, the positioning assembly 1 includes a first holding portion 15, and the first holding portion 15 is disposed opposite to the first positioning surface 11. The first grip 15 may, for example, be arranged on a side of the block of the positioning assembly 1 facing away from the first positioning surface 11, which is intended to be gripped by an operator. In the example shown in fig. 1, the first grip 15 has a rectangular parallelepiped shape. It is understood that the shape of the first grip portion 15 is not particularly limited in the present embodiment, and other shapes may be selected for the first grip portion 15 to facilitate gripping. Furthermore, the first grip portion 15 may not be provided separately, but a block of the positioning assembly 1 itself is used as a grip, which is beneficial to reduce the structural volume of the positioning assembly 1.

Referring to fig. 6 and 7, the embodiment of the present invention further provides a femur side guiding module 3 for being disposed at a second predetermined position to guide a second operation direction relative to the second predetermined position; wherein the second predetermined portion is a non-circular shaped portion; the femoral side guide module 3 includes: a third positioning surface 31, a fourth guide portion 32, and a second guide portion 33; the third positioning surface 31 is used for attaching the second predetermined part; the fourth guiding portion 32 is used for a third positioning element to penetrate through and be fixed on the second predetermined position; the second guide portion 33 is used to guide the second operating direction.

The present embodiment is described with reference to the trochanteric ridges of the femur as an example of the second predetermined portion. It should be noted that the trochanteric crest of the femur is only an example of the predetermined object, and is not a limitation of the second predetermined portion. Furthermore, the second predetermined part is a non-round shaped part, and the non-round shaped part is a non-cylindrical or spherical part, so that the approximately spherical femoral head and the approximately cylindrical femoral neck are prevented from being selected as the second predetermined part. Thus, one skilled in the art may also select other non-round shaped locations on the femur as the second predetermined location. Except that the selection thighbone is as the operation object of thighbone side guide module, under some other application scenes, can also regard thighbone prosthesis, the thighbone model of animal etc. as the predetermined position of second, utilize the thighbone side guide module that this embodiment provided to simulate operation or application of force operation such as mark to it, the utility model discloses it is not limited to this. Further, the second operative direction is an osteotomy direction.

Alternatively, the shape of the third positioning surface 31 can be reconstructed from the medical image data (e.g. CT image data) of the femur to a customized design. Because the third positioning surface 31 can be attached to the intertrochanteric ridge, the femoral side guide module 3 can be reliably positioned on the femur, deviation of the attachment position caused by circular features of the femoral head and the femoral neck is avoided, and the operation precision is ensured. In addition, the mode of attaching the intertrochanteric ridge does not need to expose more femoral heads, is favorable for reducing operation wounds and is favorable for postoperative rehabilitation of patients.

In the example shown in fig. 6 and 7, the femoral side guide module 3 may be a block, the third positioning surface 31 may be an outer surface of the block, the fourth guiding portion 32 may be a guiding hole formed through the block, and the third positioning member may be a positioning pin. After the third positioning surface 31 fits the intertrochanteric ridge, the position of the femoral side guide module 3 relative to the femur is determined. At this time, the positioning pin is driven into the femur along the guide hole of the fourth guide portion 32, so that the femoral-side guide block 3 is positioned on the femur according to the preoperatively planned position. It can be understood that, in some other embodiments, the fourth guiding portion 32 is not limited to be a guiding hole, and it may also be a guiding slot, and the third positioning element is not limited to be a positioning nail, and it may also be a positioning screw, and it can achieve similar effect, and the present invention is not limited thereto.

Preferably, the fourth guiding portion 32 includes at least two guiding holes 321, and the guiding holes 321 penetrate the third positioning surface 31 and have at least two intersection points with the third positioning surface 31. Due to the fact that the guide hole 321 has at least two intersection points with the third positioning surface 31, the positioning nail will also cross the intertrochanteric ridge during the process of passing through the guide hole 321, and therefore the femur side guide module 3 can be reliably fixed on the femur.

Alternatively, the two guide holes 321 are parallel to each other. To avoid bone fracture problems, the distance between two of the guiding holes 321 is preferably greater than 5mm, and the maximum distance between the axis of the guiding hole 321 and the third positioning surface 31 is greater than 5mm, so that the positioning nail is spaced from the bone surface traversing the intertrochanteric crest by more than 5mm after traversing the intertrochanteric crest.

Optionally, the femoral-side guiding module 3 includes a second holding portion 34, and the second holding portion 34 is disposed opposite to the third positioning surface 31. The second grip 34 can, for example, be arranged on a side of the block of the femoral-side guide module 3 facing away from the third positioning surface 31, which is intended to be gripped by the operator. In the example shown in fig. 6, the second grip 34 has a rectangular parallelepiped shape. It is understood that the shape of the second grip portion 34 is not particularly limited in this embodiment, and other shapes may be selected for the second grip portion 34 to facilitate gripping. Further, the second grip portion 34 may not be provided separately, but a block of the femoral side guide module 3 itself is used as a grip, which is beneficial to reduce the structural volume of the femoral side guide module 3.

Preferably, the second guide part 33 comprises at least two angularly arranged guiding surfaces 331, the second operating direction comprising at least two sub-operating directions, each of the guiding surfaces 331 being adapted to guide one of the sub-operating directions. It should be noted that the sub-operation directions herein refer to different osteotomy directions. Specifically, in the process of cutting the femoral neck in the hip joint operation, the cutting position of the femoral neck often interferes with the greater trochanter of the femur, and an operator often cuts two cuts to avoid the greater trochanter when cutting the femoral neck, so that the two sub-operation directions are the directions avoiding the greater trochanter. It is understood that the arrangement angle of the two guiding surfaces 331 can be determined according to the outer contour of the greater trochanter, and in practice, the customized design can be reconstructed based on the medical image data (such as CT image data) of the femur.

Based on the acetabulum side guide module and the femur side guide module 3, the present embodiment also provides a hip joint guide system, which comprises the acetabulum side guide module and the femur side guide module 3. Further, the hip joint guide system further comprises a first positioning element, a second positioning element and a third positioning element.

To sum up, the present invention provides an acetabulum side guide module for being disposed at a first predetermined location to guide a first operation direction relative to the first predetermined location, wherein the first predetermined location includes at least three target positions; the acetabulum side guide module comprises: a positioning component and a guiding component; the positioning assembly comprises a first positioning surface and a first guide part, and the first positioning surface is used for being attached to at least three target positions of the first preset part; the first guide part is used for allowing a first positioning piece to penetrate through so as to enable the first positioning piece to be fixed on the first preset part; the guide assembly comprises a second positioning surface, a second guide part and a first guide part, and the second positioning surface is used for being attached to at least one target position of the first preset part after the positioning assembly is removed; the second guide part is used for the first positioning piece to penetrate; the first guide portion is used for guiding the first operation direction. So the configuration, the first locating surface through locating component laminates the at least three target location at first predetermined position, and locating component can accurately place steadily to guarantee positioning accuracy. After the positioning assembly determines the position, the first positioning member can be fixed on the first preset position through the first guide part. And then remove positioning element, with at least one target location of the first predetermined position of second locating surface laminating of guide assembly, utilize first locating piece to penetrate the second guide part, can be fixed a position guide assembly on first predetermined position according to predetermined direction to make guide assembly's first guide part can guide first operation direction accurately reliably, be convenient for the art person to operate.

It should be noted that, several of the above embodiments may be combined with each other. The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any changes and modifications made by those skilled in the art according to the above disclosure are all within the scope of the appended claims.

Claims

1. An acetabular side guide module for placement at a first predetermined location to guide a first operational orientation relative to the first predetermined location, wherein the first predetermined location includes at least three target locations; it is characterized by comprising: a positioning component and a guiding component;

the first guide portion is used for guiding the first operation direction.

2. The acetabular side guide module of claim 1, wherein the positioning assembly includes separable first and second sub-pieces, the first positioning surface spanning the first and second sub-pieces, the first and second sub-pieces each for conforming to at least one of the target locations.

3. The acetabular side guide module of claim 1, wherein the positioning assembly includes a first grip portion disposed opposite the first positioning surface.

4. The acetabular side guide module of claim 1, wherein the guide assembly includes a third guide portion extending in a direction that is out of plane with the second guide portion; the third guiding part is used for the second positioning piece to penetrate through and be fixed on the first preset part.

5. The acetabular side guide module of claim 1, wherein the positioning assembly includes at least two of the first guides; the guide assembly includes at least two of the second guide portions.

6. A hip joint guide system comprising the acetabular side guide module according to any one of claims 1 to 5, further comprising a femoral side guide module; the femur side guide module is used for being arranged at a second preset position so as to guide a second operation direction relative to the second preset position; wherein the second predetermined portion is a non-circular shaped portion; the femoral side guide module includes: the third positioning surface, the fourth guide part and the second guide part;

the second guide portion is used for guiding the second operation direction.

7. The hip guide system according to claim 6, wherein the fourth guide portion comprises at least two guide holes extending through the third positioning surface and having at least two intersections with the third positioning surface.

8. The hip guide system according to claim 6, wherein the femoral side guide module comprises a second grip portion, the second grip portion being disposed opposite the third positioning surface.

9. The hip-joint guide system according to claim 6, wherein the second guide comprises at least two angularly arranged guide surfaces, the second operating direction comprising at least two sub-operating directions, each guide surface for guiding one of the sub-operating directions.