CN115624366A - Detection system, method and device for positioning tool for knee joint replacement - Google Patents
Detection system, method and device for positioning tool for knee joint replacement Download PDFInfo
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- CN115624366A CN115624366A CN202211153753.7A CN202211153753A CN115624366A CN 115624366 A CN115624366 A CN 115624366A CN 202211153753 A CN202211153753 A CN 202211153753A CN 115624366 A CN115624366 A CN 115624366A
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 73
- 238000001514 detection method Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012797 qualification Methods 0.000 claims abstract description 22
- 210000000988 bone and bone Anatomy 0.000 claims description 30
- 210000003127 knee Anatomy 0.000 claims description 14
- 238000011882 arthroplasty Methods 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims 1
- 238000010998 test method Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 4
- 210000002303 tibia Anatomy 0.000 description 13
- 238000004590 computer program Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000011883 total knee arthroplasty Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000013150 knee replacement Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000012659 Joint disease Diseases 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
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- Oral & Maxillofacial Surgery (AREA)
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- Pathology (AREA)
- Prostheses (AREA)
Abstract
The invention provides a detection system, a method and a device for a positioning tool for knee joint replacement, wherein the detection system comprises: the device comprises a bracket, a guide plate positioning slide block, a force line rod slide block fixing block and a force line rod slide block; the guide plate positioning slide block is arranged on the first side of the first end of the bracket in a sliding manner and is used for being matched and connected with a positioning tool; the force line rod sliding block fixing block is arranged on the second side of the first end of the bracket, and the lower part of the force line rod sliding block fixing block is connected with the force line rod sliding block in a sliding manner; and under the condition that the positioning tool is installed on the knee joint prosthesis model and the guide plate positioning sliding block is connected with the positioning tool in a matching way, the force line rod sliding block is used for determining the corresponding force line position of the knee joint prosthesis model so as to determine the qualification of the positioning tool. The detection system is used for solving the defect that the qualification of the positioning tool cannot be accurately detected due to multiple surgical instruments, heavy weight and complex assembly mode in the existing detection process of the positioning tool, and can accurately determine the qualification of the positioning tool based on the acquired accurate force line position.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a detection system, a detection method and a detection device for a positioning tool for knee joint replacement.
Background
An artificial knee joint replacement technology is a new technology for treating knee joint diseases which is gradually developed after the modern artificial hip joint is successfully applied to patients. The artificial knee joint replacement technology can effectively eradicate late knee joint pain and greatly improve the life quality of patients. The success of Total Knee Arthroplasty (TKA) depends on the positioning of the Knee joint, the gap and soft tissue balance, all of which depend on the exact location of the model prosthesis.
The existing detection method for the positioning tool (such as osteotomy positioning) is realized by a traditional TKA corresponding embracing instrument, but the qualification of osteotomy positioning cannot be accurately detected due to the fact that a plurality of surgical instruments are used, the weight is large, and the assembly mode is complex.
Disclosure of Invention
The invention provides a detection system, a detection method and a detection device for a positioning tool for knee joint replacement, which are used for solving the problem that the existing detection method for the positioning tool (such as osteotomy positioning) is realized by using a traditional TKA corresponding embracing instrument, but the qualification defect that osteotomy positioning cannot be accurately detected due to more surgical instruments, heavy weight and complex assembly mode is overcome, the detection system is simplified, and the qualification of the positioning tool can be accurately determined based on the acquired accurate force line position.
The invention provides a detection system for a positioning tool for knee joint replacement, which comprises: the device comprises a bracket, a guide plate positioning slide block, a force line rod slide block fixing block and a force line rod slide block;
the guide plate positioning sliding block is arranged on a first side of the first end of the bracket in a sliding manner and is used for being matched and connected with a positioning tool, and the first side is close to the positioning tool;
the force line rod sliding block fixing block is arranged on a second side of the first end of the bracket, the second side is the opposite side of the first side, and the force line rod sliding block is connected below the force line rod sliding block fixing block in a sliding manner; and under the condition that the positioning tool is installed on the knee joint prosthesis model and the guide plate positioning slide block is in fit connection with the positioning tool, the force line rod slide block is used for determining the corresponding force line position of the knee joint prosthesis model so as to determine the qualification of the positioning tool.
According to the detection system of the positioning tool for the knee joint replacement, which is provided by the invention, the positioning tool is a bone cutting guide plate, and a bone cutting groove is formed in the bone cutting guide plate; the first side of the first end of the bracket is provided with an opening, the guide plate positioning sliding block is arranged in the opening in a sliding manner, and the guide plate positioning sliding block is inserted into the osteotomy groove and is used for being connected with the osteotomy guide plate in a matching manner.
According to the detection system of the positioning tool for the knee joint replacement, provided by the invention, the guide plate positioning slide block comprises a sliding end and a matching end, the sliding end is arranged in the opening in a sliding manner, and the matching end is matched and connected with the positioning tool; an indicating line is arranged on the upper end face of the matching end and used for indicating the stop position of the matching end inserted into the positioning tool.
According to the detection system of the positioning tool for the knee joint replacement, provided by the invention, the lower end of the force line rod sliding block is provided with a connecting structure; the connecting structure is used for being connected with an extension rod.
According to the invention, the detection system for the positioning tool for the knee joint replacement further comprises: the detachable base is connected with the second end of the support and used for supporting the support, and the second end is the opposite end of the first end.
The invention also provides a detection method of the positioning tool for knee joint replacement, which is applied to the detection system of any positioning tool for knee joint replacement, and the method comprises the following steps:
acquiring a first matching degree between a guide plate positioning slide block and a positioning tool in a state that the guide plate positioning slide block is matched and connected with the positioning tool;
determining a force line position corresponding to the knee joint prosthesis model in a state that the positioning tool is mounted on the knee joint prosthesis model;
acquiring a second matching degree between the position of the force line and the slide block of the force line rod;
and determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
According to the method for detecting the positioning tool for the knee joint replacement provided by the invention, the qualification of the positioning tool is determined according to the first matching degree and the second matching degree, and the method comprises the following steps: determining that the positioning tool is qualified under the condition that the first matching degree is greater than a first preset threshold value and the second matching degree is greater than a second preset threshold value; and determining that the positioning tool is unqualified under the condition that the first matching degree is less than or equal to the first preset threshold value and/or the second matching degree is less than or equal to the second preset threshold value.
According to the detection method of the positioning tool for the knee joint replacement, which is provided by the invention, the positioning tool is a bone cutting guide plate, and a bone cutting groove is formed in the bone cutting guide plate; should acquire the first matching degree between this baffle location slider and the positioning tool, include: acquiring the thickness of a sliding block corresponding to the guide plate positioning sliding block and the thickness of a notch corresponding to the osteotomy groove; a first degree of fit between the guide positioning slide and the osteotomy guide is determined based on a thickness difference between the slide thickness and the notch thickness.
According to the detection method of the positioning tool for knee joint replacement provided by the invention, the lower end of the force line rod sliding block is provided with the connecting structure, and the method further comprises the following steps: acquiring the length of a force line corresponding to the knee joint prosthesis model and the length of a rod corresponding to the force line rod slide block; and under the condition that the length of the force line is greater than that of the rod, outputting prompt information, wherein the prompt information is used for prompting a user to connect the extension rod at the connecting structure.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the detection method of the positioning tool for knee joint replacement.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of detecting a positioning tool for knee replacement as described in any of the above.
The invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a method of detecting a positioning tool for knee arthroplasty as described in any of the above.
The invention provides a detection system, a method and a device for a positioning tool for knee joint replacement, wherein the detection system comprises: the device comprises a bracket, a guide plate positioning slide block, a force line rod slide block fixing block and a force line rod slide block; the guide plate positioning sliding block is arranged on a first side of a first end of the bracket in a sliding manner and is used for being matched and connected with a positioning tool, and the first side is close to the positioning tool; the force line rod sliding block fixing block is arranged on a second side of the first end of the bracket, the second side is the opposite side of the first side, and the force line rod sliding block is connected below the force line rod sliding block fixing block in a sliding mode; and under the condition that the positioning tool is installed on the knee joint prosthesis model and the guide plate positioning slide block is in fit connection with the positioning tool, the force line rod slide block is used for determining the position of the force line corresponding to the knee joint prosthesis model so as to determine the qualification of the positioning tool. The detection system is simplified, and is used for solving the problem that the existing detection method for the positioning tool (such as osteotomy positioning) is realized by corresponding a traditional TKA to a embracing instrument, but the qualification defect that osteotomy positioning cannot be accurately detected due to the fact that a plurality of surgical instruments are used, the weight is large, and the assembly mode is complex, and the qualification of the positioning tool can be accurately determined based on the acquired accurate force line position.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1a is a schematic structural view of a stent provided by the present invention;
FIG. 1b is a schematic structural diagram of a guide plate positioning block provided by the present invention;
FIG. 1c is a schematic structural view of a force line rod slider fixing block provided by the present invention;
FIG. 1d is one of the schematic structural views of the slider for force line bar provided by the present invention;
FIG. 1e is a schematic structural diagram of a detachable base according to the present invention;
FIG. 2 is a schematic view of a detection system for a positioning tool for knee arthroplasty according to the present invention;
FIG. 3a is a schematic structural view of a bone cutting guide provided in the present invention;
FIG. 3b is a schematic view of a bone cutting guide provided by the present invention on a detection system;
FIG. 3c is a second schematic view of the bone cutting guide provided by the present invention on the detection system;
FIG. 3d is a schematic view of a sliding scenario of the osteotomy guide plate and force line rod slider provided by the present invention;
FIG. 3e is a second schematic view of the structure of the force line rod slider according to the present invention;
FIG. 3f is a schematic view of the force beam slider of the present invention in position relative to a knee prosthesis model;
FIG. 4 is a schematic flow chart illustrating a method for detecting a positioning tool for knee arthroplasty according to the present invention;
FIG. 5 is a block diagram of a detection device for a positioning tool for knee arthroplasty according to the present invention;
fig. 6 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1a is a schematic structural view of a stent provided by the present invention;
FIG. 1b is a schematic structural diagram of a guide plate positioning block provided by the present invention;
FIG. 1c is a schematic structural view of a force line rod slider fixing block provided by the present invention;
FIG. 1d is a schematic view of the slider of the force line bar according to the present invention;
fig. 1e is a schematic structural diagram of the detachable base provided by the present invention.
Fig. 2 is a schematic structural diagram of a detection system for a positioning tool for knee replacement provided in the present invention, and the detection system 10 for a positioning tool for knee replacement may include: the device comprises a bracket 101, a guide plate positioning slide block 102, a force line rod slide block fixing block 103 and a force line rod slide block 104;
the guide plate positioning slide block 102 is slidably arranged on a first side of a first end of the bracket 101 and is used for being matched and connected with the positioning tool 20, and the first side is a side close to the positioning tool 20;
the force line rod sliding block fixing block 103 is arranged on a second side of the first end of the support 101, the second side is the opposite side of the first side, and a force line rod sliding block 104 is connected below the force line rod sliding block fixing block 103 in a sliding mode; under the state that the positioning tool 20 is installed on the knee joint prosthesis model and the guide plate positioning slide block 102 is matched and connected with the positioning tool 20, the force line rod slide block 104 is used for determining the corresponding force line position of the knee joint prosthesis model so as to determine the qualification of the positioning tool 20.
The positioning tool 20 is generated by three-dimensional (3D) printing, after the positioning tool 20 is attached to the knee joint prosthesis model, the bone grafting nail can fix the positioning tool 20 on the knee joint prosthesis model, and then the positioning tool 20 can effectively and accurately determine the position of the metal osteotome.
It will be appreciated that the sliding path of the guide plate positioning slide 102 on the first side of the first end of the bracket 101 is parallel to the sliding path of the force line rod slide 104 below the force line rod slide mounting block 103, so that the force line rod slide 104 can accurately determine the corresponding force line position of the knee prosthesis model on the guide plate positioning slide 102.
In the embodiment of the present invention, the detection system 10 is simplified to solve the problem that the existing detection method for the positioning tool 20 (for example, osteotomy positioning) is implemented by using a traditional TKA-corresponding embracing instrument, but the qualification defect that the osteotomy positioning cannot be accurately detected due to the fact that a plurality of surgical instruments, a large weight and a complex assembly mode exist, and the qualification of the positioning tool 20 can be accurately determined based on the obtained accurate force line position.
In addition, in the prior art, the conventional TKA only judges the deviation of the knee joint prosthesis model to the stress line according to the knee joint X-ray or Computed Tomography (CT) before the operation, which affects the angle judgment, and may cause a certain degree of error in the TKA operation process. However, the detection system 10 according to the embodiment of the present invention can flexibly move the force line rod slider 104, so as to accurately determine the force line position corresponding to the knee joint prosthesis model; then, the user can perform the next osteotomy operation, and the detection system 10 then accurately implants the positioning tool 20 into the tibia corresponding to the knee joint prosthesis model, thereby effectively shortening the operation time and reducing the operation error.
Alternatively, the slide thickness of the guide plate positioning slide 102 may be a preset thickness threshold.
Illustratively, assume that the preset thickness threshold is 1.6 millimeters (mm), that is, the slider thickness of the guide plate positioning slider 102 is 1.6mm.
In some embodiments, the positioning tool 20 is a bone cutting guide 201, and the bone cutting guide 201 is provided with a bone cutting groove 2012; the first side of the first end of the bracket 101 is provided with an opening, the guide plate positioning slide block 102 is slidably disposed in the opening, and the guide plate positioning slide block 102 is inserted into the osteotomy groove 2012 for being cooperatively connected with the osteotomy guide plate 201.
Wherein the bone cutting guide 201 is generated by 3D printing.
The guide plate positioning slider 102 is slidably received in the opening of the first side of the frame 101 corresponding to the first end thereof, and is accurately inserted into the osteotomy groove 2012, thereby effectively and reliably securing the osteotomy guide plate 201.
Optionally, when the bone cutting guide plate 201 is a tibia guide plate, the tibia guide plate may include a tibia guide plate body, a tibia bone cutting groove is formed in a first side of the tibia guide plate body, the tibia bone cutting groove penetrates through one end of the tibia guide plate body, and a sickle blade is inserted into the tibia bone cutting groove; a fitting groove is formed in the second side of the tibial guide plate body; one end of the tibia guide plate body is provided with a force line rod fixing plate parallel to the tibia osteotomy groove, and one end, far away from the tibia guide plate body, of the force line rod fixing plate is provided with a force line rod inserting hole which is set to be capable of inserting the force line rod.
Illustratively, as shown in fig. 3a, the bone cutting guide is a schematic structural view provided by the present invention. In fig. 3a, the osteotomy guide 201 is provided with two osteotomy slots 2012, the slot opening thickness of the osteotomy slots 2012 is 1.6mm. Thus, when the notch thickness of the osteotomy groove 2012 is the same as the slider thickness of the guide plate positioning slider 102, the guide plate positioning slider 102 can be effectively and reliably inserted into the osteotomy groove 2012 to be cooperatively connected with the osteotomy guide 201, i.e., to fix the osteotomy guide 201, and at this time, the osteotomy groove 2012 is perpendicular to the force line rod slider 104; when the notch thickness of the osteotomy slot 2012 is not the same as the slide thickness of the guide plate positioning slide 102, the guide plate positioning slide 102 cannot be effectively and reliably inserted into the osteotomy slot 2012, resulting in the detection system 10 being able to accurately determine that the osteotomy guide 201 is not acceptable.
Illustratively, as shown in fig. 3b, it is a view of the bone cutting guide provided by the present invention on a detection system; fig. 3c is a schematic view of the bone cutting guide provided by the present invention on the detection system. The scene graph shown in fig. 3b is at a different angle than the scene graph shown in fig. 3 c.
Exemplarily, as shown in fig. 3d, it is a schematic view of the sliding scenario of the osteotomy guide plate and the force line rod slider provided by the present invention. In fig. 3d, when the detection system 10 is located at a horizontal plane, the guide plate positioning slide 102 is horizontally slidable on the first side of the first end of the bracket 101 based on the horizontal plane, and the force line bar slide 104 is horizontally slidable below the force line bar slide fixing block 103 based on the horizontal plane. The sliding path of the guide plate positioning slider 102 is parallel to the sliding path of the force line rod slider 104, so as to ensure that the force line rod slider 104 can effectively determine the position of the force line corresponding to the knee joint prosthesis model.
Optionally, the number of guide plate positioning sliders 102 is at least two.
The number of guide plate positioning slides 102 may be adjusted based on the number of notches of the osteotomy groove 2012.
When the number of the guide plate positioning sliders 102 is two, the detection system 10 may slide and adjust the positions of the two guide plate positioning sliders 102 according to the osteotomy guide plates 201 of different sizes, so as to effectively and reliably fix the osteotomy guide plate 201, thereby enabling the detection system 10 to detect the eligibility of the osteotomy guide plates 201 of different sizes.
In some embodiments, the fence positioning block 102 may include a sliding end slidably disposed in an opening in a corresponding first side of the first end of the bracket 101 and a mating end that is matingly coupled to the positioning tool 20; an indicator line is provided on the upper end face of the mating end for indicating the stop position of the mating end inserted into the positioning tool 20.
The sliding end of the guide plate positioning slider 102 is slidably disposed in the opening of the first end of the bracket 101 corresponding to the first side, and based on the indication line on the upper end surface of the mating end, the mating end and the positioning tool 20 can be ensured to be in effective fit connection.
In some embodiments, the lower end of the force wire rod slide 104 is provided with a connection structure; the connecting structure is used for being connected with the extension rod.
Optionally, a threaded connection or a plug connection is provided inside the lower end of the force line rod slider 104 for additionally connecting an extension rod.
Because the knee joint prosthesis model has different force line lengths corresponding to the tibia, the force line rod slider 104 can determine whether the lower end of the force line rod slider 104 needs to be additionally connected with an extension rod or not based on the force line lengths. When the length of the force line is greater than the length of the force line rod slider 104, the detection system 10 outputs a prompt message, where the prompt message is used to prompt a user to add an extension rod to the lower end connection structure of the force line rod slider 104, so that the length of the force line is less than or equal to the length of the rod after the extension rod is added, and thus the force line rod slider 104 can effectively determine the position of the force line corresponding to the knee joint prosthesis model.
Illustratively, as shown in fig. 3e, the invention is a schematic structural diagram of the force line rod slider. In fig. 3e, the lower end of the force wire slider 104 is internally provided with a thread structure, which may be a threaded hole.
In some embodiments, further comprising: a detachable base 105, the detachable base 105 being connected to a second end of the rack 101 for supporting the rack 101, the second end being opposite to the first end.
The detachable base 105 supports the bracket 101, so that the bracket 101 can be ensured to be continuously in a fixed state without shaking.
Optionally, the force wire rod slide 104 is T-shaped.
The force line rod sliding block 104 is T-shaped, and can horizontally slide below the force line rod sliding block fixing block 103, so that the force line position corresponding to the knee joint prosthesis model can be effectively determined.
For example, as shown in fig. 3f, it is a schematic diagram of the position of the force line bar sliding block provided by the present invention compared to the knee joint prosthesis model. In fig. 3f, during the determination of the force line position of the knee prosthesis model by the force line rod slider 104, the detection system 10 can move the force line rod slider 104 to a preset position of the knee prosthesis model, which can be 1/3 of the inside of the tibial tubercle, i.e., on the coronal plane, with the tibial tubercle center inward.
The following describes a method for detecting a positioning tool for knee joint replacement provided by the present invention, and the method for detecting a positioning tool for knee joint replacement described below and the system for detecting a positioning tool for knee joint replacement described above can be referred to in correspondence with each other.
Fig. 4 is a schematic flow chart of the detection method of the positioning tool for knee joint replacement provided in the present invention, and may include:
401. and acquiring a first matching degree between the guide plate positioning sliding block and the positioning tool in a state that the guide plate positioning sliding block is connected with the positioning tool in a matching manner.
In some embodiments, the positioning tool is a bone cutting guide plate, and the bone cutting guide plate is provided with a bone cutting groove; the detecting device obtains a first matching degree between the guide plate positioning slide block and the positioning tool, and may include: the detection device acquires the thickness of a slide block corresponding to the guide plate positioning slide block and the thickness of a notch corresponding to the osteotomy groove; the detection device determines a first matching degree between the guide plate positioning slide block and the osteotomy guide plate according to a thickness difference between the slide block thickness and the notch thickness.
Wherein the thickness difference is an absolute value of the difference, i.e. a positive value.
Different matching degrees corresponding to different thickness differences: the smaller the thickness difference is, the more the guide plate positioning slide block is attached to the osteotomy groove, and at the moment, the higher the matching degree between the guide plate positioning slide block and the osteotomy guide plate is; the larger the thickness difference is, the less the guide plate positioning slide block is attached to the osteotomy groove, and at the moment, the lower the matching degree between the guide plate positioning slide block and the osteotomy guide plate is.
402. And determining the corresponding force line position of the knee joint prosthesis model under the condition that the positioning tool is installed on the knee joint prosthesis model.
Under the state that the positioning tool is installed on the knee joint prosthesis model, the detection device can move the force line rod sliding block at the lower end of the force line rod sliding block fixing block to the preset position of the knee joint prosthesis model, and the force line rod sliding block has flexibility and can accurately determine the force line position corresponding to the knee joint prosthesis model.
403. And acquiring a second matching degree between the force line position and the force line rod slide block.
In some embodiments, the method may further comprise: the detection device acquires the length of a force line corresponding to the knee joint prosthesis model and the length of a rod corresponding to a force line rod sliding block; the detection device outputs prompt information under the condition that the length of the force line is greater than that of the rod, and the prompt information is used for prompting a user to additionally connect an extension rod at the lower end of the force line rod sliding block.
Under the condition that the rod length of the force line rod sliding block is greater than the corresponding force line length of the knee joint prosthesis model, the force line rod sliding block can be effectively ensured to be capable of accurately determining the force line length. However, when the length of the force line is greater than the length of the rod, it indicates that the force line rod slider cannot accurately determine the length of the force line, at this time, the detection device may output a prompt message, and then, the user additionally attaches an extension rod to the lower end of the force line rod slider according to the prompt message, so as to ensure that the new length of the rod corresponding to the force line rod slider needs to be greater than the length of the force line, so that the force line rod slider after the extension rod is additionally attached can accurately determine the length of the force line.
Optionally, the time sequence for acquiring the first matching degree between the guide plate positioning slide block and the positioning tool and the second matching degree between the force line position and the force line rod slide block by the detection device is not limited.
404. And determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
In some embodiments, the determining, by the detecting device, the eligibility of the positioning tool according to the first matching degree and the second matching degree may include: the detection device determines that the positioning tool is qualified under the condition that the first matching degree is greater than a first preset threshold value and the second matching degree is greater than a second preset threshold value; the detection device determines that the positioning tool is unqualified under the condition that the first matching degree is less than or equal to a first preset threshold value and/or the second matching degree is less than or equal to a second preset threshold value.
The first preset threshold and the second preset threshold may be the same or different, and may be set before the detection apparatus leaves the factory, or may be user-defined, and are not specifically limited herein.
Illustratively, assume that the first predetermined threshold is 99% and the second predetermined threshold is 99%.
Under the condition that the first matching degree is greater than a first preset threshold value and the second matching degree is greater than a second preset threshold value, the detection device shows that the first matching degree and the second matching degree are higher, and at the moment, the positioning tool can be determined to be qualified; the detection device indicates that the first matching degree and/or the second matching degree are lower under the condition that the first matching degree is less than or equal to a first preset threshold value and/or the second matching degree is less than or equal to a second preset threshold value, and at the moment, the positioning tool can be determined to be unqualified.
In the embodiment of the invention, a first matching degree between a guide plate positioning slide block and a positioning tool is obtained; determining the corresponding force line position of the knee joint prosthesis model; acquiring a second matching degree between the position of the force line and the force line rod slide block; and determining the qualification of the positioning tool according to the first matching degree and the second matching degree. In the method, the detection device can flexibly move the force line sliding block, accurately determine the position of the force line corresponding to the knee joint prosthesis model, and effectively and accurately determine whether the positioning is qualified or not according to the first matching degree between the guide plate positioning sliding block and the positioning tool and the second matching degree between the force line position and the force line rod sliding block.
As shown in fig. 5, the schematic structural diagram of the detection device of the positioning tool for knee replacement provided in the present invention may include:
the obtaining module 501 is configured to obtain a first matching degree between a guide plate positioning slider and a positioning tool in a state where the guide plate positioning slider is connected with the positioning tool in a matching manner;
a determining module 502, configured to determine a force line position corresponding to the knee joint prosthesis model in a state where the positioning tool is mounted to the knee joint prosthesis model;
an obtaining module 501, configured to obtain a second matching degree between the position of the force line and the slider of the force line rod;
a determining module 502, configured to determine the eligibility of the positioning tool according to the first matching degree and the second matching degree.
Optionally, the determining module 502 is specifically configured to determine that the positioning tool is qualified when the first matching degree is greater than a first preset threshold and the second matching degree is greater than a second preset threshold; and determining that the positioning tool is unqualified under the condition that the first matching degree is less than or equal to the first preset threshold value and/or the second matching degree is less than or equal to the second preset threshold value.
Optionally, the positioning tool is a bone cutting guide plate, and a bone cutting groove is formed in the bone cutting guide plate;
an obtaining module 501, configured to specifically obtain a thickness of a slider corresponding to the guide plate positioning slider and a thickness of a notch corresponding to the osteotomy groove;
a determination module 502 is configured to determine a first degree of fit between the guide positioning block and the bone resection guide based on a thickness difference between the block thickness and the notch thickness.
Optionally, the lower end of the force line rod sliding block is provided with a connecting structure, and the obtaining module 501 is further configured to obtain a force line length corresponding to the knee joint prosthesis model and a rod length corresponding to the force line rod sliding block;
an output module 503, configured to output a prompt message for prompting a user to connect the extension pole at the connection structure if the length of the force line is greater than the length of the pole.
As shown in fig. 6, which is a schematic structural diagram of an electronic device provided in the present invention, the electronic device may include: a processor (processor) 610, a communication Interface (Communications Interface) 620, a memory (memory) 630 and a communication bus 640, wherein the processor 610, the communication Interface 620 and the memory 630 communicate with each other via the communication bus 640. The processor 610 may invoke logic instructions in the memory 630 to perform a method of detecting a positioning tool for knee arthroplasty, the method comprising: acquiring a first matching degree between a guide plate positioning slide block and a positioning tool in a state that the guide plate positioning slide block is matched and connected with the positioning tool; determining a force line position corresponding to the knee joint prosthesis model in a state that the positioning tool is mounted on the knee joint prosthesis model; acquiring a second matching degree between the position of the force line and the slide block of the force line rod; and determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, wherein when the computer program is executed by a processor, the computer is capable of executing the method for detecting a positioning tool for knee arthroplasty provided by the methods described above, the method comprising: acquiring a first matching degree between a guide plate positioning slide block and a positioning tool in a state that the guide plate positioning slide block is matched and connected with the positioning tool; determining a force line position corresponding to the knee joint prosthesis model in a state that the positioning tool is mounted on the knee joint prosthesis model; acquiring a second matching degree between the position of the force line and the slide block of the force line rod; and determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing a method for detecting a positioning tool for knee arthroplasty provided by the above methods, the method comprising: acquiring a first matching degree between the guide plate positioning slide block and the positioning tool in a state that the guide plate positioning slide block is matched and connected with the positioning tool; determining a force line position corresponding to the knee joint prosthesis model in a state that the positioning tool is mounted on the knee joint prosthesis model; acquiring a second matching degree between the position of the force line and the slide block of the force line rod; and determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A system for detecting a positioning tool for knee arthroplasty, comprising: the device comprises a bracket, a guide plate positioning slide block, a force line rod slide block fixing block and a force line rod slide block;
the guide plate positioning sliding block is arranged on a first side of a first end of the bracket in a sliding manner and is used for being matched and connected with a positioning tool, and the first side is close to the positioning tool;
the force line rod sliding block fixing block is arranged on a second side of the first end of the bracket, the second side is the opposite side of the first side, and the force line rod sliding block is connected below the force line rod sliding block fixing block in a sliding mode; and under the condition that the positioning tool is installed on the knee joint prosthesis model and the guide plate positioning slide block is in fit connection with the positioning tool, the force line rod slide block is used for determining the position of the force line corresponding to the knee joint prosthesis model so as to determine the qualification of the positioning tool.
2. The detection system according to claim 1, wherein the positioning tool is a bone cutting guide plate provided with a bone cutting slot;
the first side of support first end is equipped with the opening, baffle location slider slides and locates in the opening, baffle location slider inserts in the osteotomy groove for with osteotomy baffle cooperation is connected.
3. The inspection system of claim 2, wherein the guide plate positioning slide includes a sliding end and a mating end, the sliding end being slidably disposed in the opening, the mating end being in mating connection with the positioning tool;
an indicating line is arranged on the upper end face of the matching end and used for indicating the stop position of the matching end inserted into the positioning tool.
4. The detection system according to any one of claims 1-3, wherein the lower end of the force line rod slider is provided with a connecting structure;
the connecting structure is used for being connected with the extension rod.
5. The detection system according to any one of claims 1-3, further comprising: the detachable base is connected with the second end of the support and used for supporting the support, and the second end is the opposite end of the first end.
6. A method for detecting a positioning tool for knee arthroplasty, applied to a detection system according to any one of claims 1 to 5, comprising:
acquiring a first matching degree between a guide plate positioning sliding block and a positioning tool in a state that the guide plate positioning sliding block is connected with the positioning tool in a matched manner;
determining a force line position corresponding to the knee joint prosthesis model in a state that the positioning tool is mounted to the knee joint prosthesis model;
acquiring a second matching degree between the force line position and the force line rod sliding block;
and determining the qualification of the positioning tool according to the first matching degree and the second matching degree.
7. The method of claim 6, wherein determining the eligibility of the positioning tool based on the first and second degrees of match comprises:
determining that the positioning tool is qualified under the condition that the first matching degree is greater than a first preset threshold value and the second matching degree is greater than a second preset threshold value;
and determining that the positioning tool is unqualified under the condition that the first matching degree is smaller than or equal to the first preset threshold value and/or the second matching degree is smaller than or equal to the second preset threshold value.
8. The detection method according to claim 6, wherein the positioning tool is a bone cutting guide plate, and a bone cutting groove is formed on the bone cutting guide plate; the acquiring a first matching degree between the guide plate positioning sliding block and the positioning tool comprises:
obtaining the thickness of a sliding block corresponding to the guide plate positioning sliding block and the thickness of a notch corresponding to the osteotomy groove;
determining a first degree of match between the guide positioning slide and the osteotomy guide based on a thickness difference between the slide thickness and the notch thickness.
9. The method of testing as claimed in any one of claims 6-8, wherein a lower end of said force wire rod slide is provided with a connection structure, said method further comprising:
acquiring the length of a force line corresponding to the knee joint prosthesis model and the length of a rod corresponding to the force line rod sliding block;
and under the condition that the length of the force line is greater than that of the rod, outputting prompt information, wherein the prompt information is used for prompting a user to connect the extension rod at the connecting structure.
10. A device for detecting a positioning tool for a knee arthroplasty, comprising:
the acquisition module is used for acquiring a first matching degree between the guide plate positioning slide block and the positioning tool in a state that the guide plate positioning slide block is in fit connection with the positioning tool;
the determining module is used for determining the position of a force line corresponding to the knee joint prosthesis model under the condition that the positioning tool is installed on the knee joint prosthesis model;
the acquisition module is further used for acquiring a second matching degree between the force line position and the force line rod sliding block;
the determining module is further configured to determine the eligibility of the positioning tool according to the first matching degree and the second matching degree.
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| CN202211153753.7A CN115624366A (en) | 2022-09-21 | 2022-09-21 | Detection system, method and device for positioning tool for knee joint replacement |
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Address after: 100176 2201, 22 / F, building 1, yard 2, Ronghua South Road, economic and Technological Development Zone, Daxing District, Beijing Applicant after: Beijing Changmugu Medical Technology Co.,Ltd. Applicant after: Zhang Yiling Address before: 100176 2201, 22 / F, building 1, yard 2, Ronghua South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Applicant before: BEIJING CHANGMUGU MEDICAL TECHNOLOGY Co.,Ltd. Applicant before: Zhang Yiling |