CN217744563U - Tibia side positioning guider for reconstruction of posterior cruciate ligament - Google Patents
Tibia side positioning guider for reconstruction of posterior cruciate ligament Download PDFInfo
- Publication number
- CN217744563U CN217744563U CN202123296560.0U CN202123296560U CN217744563U CN 217744563 U CN217744563 U CN 217744563U CN 202123296560 U CN202123296560 U CN 202123296560U CN 217744563 U CN217744563 U CN 217744563U
- Authority
- CN
- China
- Prior art keywords
- positioning
- swing arm
- cruciate ligament
- adjusting sleeve
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000002303 tibia Anatomy 0.000 title claims abstract description 58
- 210000002967 posterior cruciate ligament Anatomy 0.000 title claims abstract description 50
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 6
- 241001330002 Bambuseae Species 0.000 claims abstract description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 6
- 239000011425 bamboo Substances 0.000 claims abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 210000000988 bone and bone Anatomy 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 210000003041 ligament Anatomy 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 210000000629 knee joint Anatomy 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000001356 surgical procedure Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 206010050902 Postoperative thrombosis Diseases 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 201000008482 osteoarthritis Diseases 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Abstract
The utility model provides a tibia lateral positioning guider for reconstruction of posterior cruciate ligament, belonging to the technical field of medical equipment. The positioning guider comprises a positioning guide frame, a far-end positioning frame, a first adjusting sleeve and a second adjusting sleeve. Wherein the location leading truck includes a location section of thick bamboo and support arm, has arc swing arm slide on the support arm. The far-end positioning frame comprises an adjusting swing arm and a positioning arm, the adjusting swing arm is slidably mounted in the arc-shaped swing arm slide way, one end of the positioning arm is connected with the adjusting swing arm, and the other end of the positioning arm is provided with a tibia hook. The first adjustment sleeve is slidably mounted in the positioning barrel and has a K-wire guide bore. The second adjusting sleeve is slidably mounted in the positioning cylinder and is provided with a hollow drill guide hole, and the aperture of the hollow drill guide hole is larger than that of the Kirschner wire guide hole. The positioning guider is easy to operate, can safely and accurately position the tibial side dead point of the posterior cruciate ligament and manufacture the bone passage, shortens the operation time of the posterior cruciate ligament reconstruction operation, and improves the operation efficiency.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to tibia side location director is rebuild to posterior cruciate ligament.
Background
In recent years, the kinematics and arthroscopy have been rapidly developed. The fracture of the posterior cruciate ligament of the knee joint causes the instability of the sagittal plane of the knee joint, seriously influences the function of the knee joint of a patient and can cause the occurrence of osteoarthritis. Fracture of the posterior cruciate ligament of the knee joint generally requires a knee arthroscopic posterior cruciate ligament reconstruction operation. However, since the tibial side insertion point of the posterior cruciate ligament is located behind the tibial plateau, the insertion point serving as the attachment point of the reconstructed ligament is difficult to expose and position in the operation, so that the requirements of the bone canal positioning and manufacturing process of the tibial side on the operation technique of a doctor are high.
In the related art, a posterior cruciate ligament tibial guider designed according to a central point positioning method is usually adopted to assist in determining an attachment point for reconstruction of a posterior cruciate ligament, the commonly used guider usually comprises a support, and a guide rod and a swing arm which are installed on the support, in the process of a posterior cruciate ligament reconstruction surgery, the swing arm of the posterior cruciate ligament tibial guider is implanted into a joint cavity at the inner side of a knee joint, the front end of the swing arm is arranged at the position, which is about 10mm away from a tibial dead point, behind a tibial platform, the front end of the guide rod abuts against a tibia, a guide pin penetrates into a guide slideway of the guide rod, and when the guide pin penetrates through the tibial platform, the guide pin penetrates out of the tibial platform and is the tibial dead point on the posterior cruciate ligament side.
After adopting the back cruciate ligament shin bone director among the correlation technique to fix a position back cruciate ligament shin bone side dead point, need wholly demolish the director to set up back cruciate ligament baffle in back cruciate ligament shin bone side dead point department, need add the back inboard approach in order to avoid haring back vascular neural structure simultaneously, extensively release back inboard structure, the operation technical requirement is high, the operation time is long, and probably increases postoperative thrombosis's risk. Affecting the efficiency and efficacy of the surgery.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a back cruciate ligament rebuilds shin bone side location director, easily operation can fix a position back cruciate ligament shin bone side dead point safely accurately and make the shin bone way, shortens the operation time that back cruciate ligament rebuilds the operation, improves operation efficiency. The technical scheme is as follows:
the embodiment of the utility model provides a tibia side location director is rebuild to posterior cruciate ligament has:
the positioning guide frame comprises a positioning cylinder and a supporting arm, the supporting arm is arranged on the side wall of the positioning cylinder in a protruding mode along the radial direction of the positioning cylinder, and an arc-shaped swing arm slide way is arranged on the supporting arm;
the far-end positioning frame comprises an adjusting swing arm and a positioning arm, the adjusting swing arm is slidably mounted in the arc-shaped swing arm slide way, one end of the positioning arm is connected with the adjusting swing arm and is bent towards the axis direction of the positioning cylinder, and the other end of the positioning arm is provided with a tibia hook;
the first adjusting sleeve is slidably mounted in the positioning cylinder and is provided with a Kirschner wire guide hole which penetrates through the first adjusting sleeve along the axial direction;
the second adjusting sleeve is slidably installed in the positioning cylinder and provided with a hollow drill guide hole which penetrates through the second adjusting sleeve along the axial direction, and the aperture of the hollow drill guide hole is larger than that of the Kirschner wire guide hole.
Optionally, the inner wall of the positioning cylinder is provided with a plurality of first limiting latch teeth, the plurality of first limiting latch teeth are uniformly arranged at intervals along the axial direction of the positioning cylinder, and each first limiting latch tooth is arranged in a semi-circular arc shape and protrudes inwards along the radial direction of the positioning cylinder; the outer wall of the first adjusting sleeve is provided with a plurality of second limiting clamping teeth matched with the first limiting clamping teeth, the second limiting clamping teeth are uniformly arranged at intervals along the axial direction of the first adjusting sleeve, and each second limiting clamping tooth is arranged in a semi-circular arc shape in a protruding mode along the radial direction of the first adjusting sleeve; have on the outer wall of second adjusting sleeve with a plurality of first spacing latch assorted a plurality of third spacing latches, a plurality of third spacing latches are followed the even interval arrangement of second adjusting sleeve's axis direction, every the spacing latch of third is followed the radial outside protrusion of second adjusting sleeve is arranged and is the semicircle arcuation.
Optionally, both sides of the tibia hook in the length direction are provided with limiting baffles protruding towards the positioning cylinder, and the two limiting baffles are parallel to each other and symmetrically arranged relative to the tibia hook.
Optionally, the edge of the limiting baffle and the joint with the tibia hook are both arc chamfer structures.
Optionally, the adjusting swing arm is provided with a scale mark for displaying an included angle between the positioning arm and the axis of the positioning cylinder, and one end of the supporting arm is provided with a pointing mark matched with the scale mark.
Optionally, the tibia side positioning guider for posterior cruciate ligament reconstruction further comprises a locking bolt, a first bolt hole matched with the locking bolt is formed in the supporting arm, the first bolt hole is communicated with the arc-shaped swing arm slide way, and a second bolt hole matched with the locking bolt is formed in the adjusting swing arm.
Optionally, the adjusting swing arm is provided with one second bolt hole, the supporting arm is provided with a plurality of first bolt holes, and the first bolt holes are uniformly arranged at intervals along the extending direction of the arc-shaped swing arm slide way.
Optionally, the hole diameter of the kirschner wire guide hole is 2mm.
Optionally, the tibial side positioning guide for reconstruction of the posterior cruciate ligament comprises a plurality of second adjusting sleeves, and the hole diameters of the hollow drill guide holes of the plurality of second adjusting sleeves are 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm and 10mm respectively.
Optionally, the positioning guide frame, the distal end positioning frame, the first adjusting sleeve and the second adjusting sleeve are stainless steel structural members.
The embodiment of the utility model provides a beneficial effect that technical scheme brought includes at least:
when a posterior cruciate ligament reconstruction operation needs to be carried out, the positioning guide frame and the distal positioning frame can be adjusted according to the specific anatomical characteristics obtained by imaging examination of a preoperative patient. Through letting adjust the swing arm and slide along the arc swing arm slide on the support arm, adjust the contained angle between the axis of the location arm that one end and regulation swing arm are connected and a location section of thick bamboo, make the shin bone couple that is located the location arm other end catch on the footprint district of back cruciate ligament shin bone side dead point, accomplish preliminary location. Afterwards, the first adjusting sleeve is assembled in the positioning cylinder in a sliding mode along the axis direction, the Kirschner wire guide hole is used for guiding, the Kirschner wire penetrates into the Kirschner wire guide hole and is implanted into the tibia, the Kirschner wire can be abutted to the end face of a tibial side dead point of the posterior cruciate ligament hooked by the tibial hook after penetrating out, and positioning is completed. The part of the Kirschner wire, which penetrates out of the tibia, is the tibia lateral dead point of the posterior cruciate ligament, at the moment, the first adjusting sleeve is detached and separated from the positioning cylinder along the axial direction of the positioning cylinder, and the Kirschner wire is kept implanted into the tibia. And then the second adjusting sleeve is assembled into the positioning cylinder in a sliding mode along the axial direction instead, so that the Kirschner wire implanted into the tibia is located in the hollow drill guide hole. Because the aperture of the hollow drill guide hole is larger than that of the Kirschner wire guide hole, an annular space for the hollow drill to go down is formed between the hole wall of the hollow drill guide hole and the Kirschner wire. At the moment, corresponding hollow drills are inserted into the hollow drill guide holes, the tibial bone canal can be opened along the implanting direction of the Kirschner wire, and the positioning accuracy is guaranteed. And through changing the first adjusting sleeve and the second adjusting sleeve that have different internal diameters, can directly carry out getting through of shin bone way after the implantation location of ke shi needle, need not to carry out the whole of location director and demolishs. Simple structure, easily operation can fix a position back cruciate ligament shin bone lateral insertion point and make the bone way safely accurately, shortens the operation time of back cruciate ligament reconstruction operation, improves operation efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 is a schematic perspective view of a posterior cruciate ligament reconstruction tibia side positioning guide provided in an embodiment of the present invention;
fig. 2 is a schematic view of an assembly structure of a posterior cruciate ligament reconstruction tibia positioning guide according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a positioning guide frame according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a distal positioning frame according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a first adjusting sleeve according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a second adjusting sleeve according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In the related art, a posterior cruciate ligament tibial guider designed according to a central point positioning method is usually adopted to assist in determining an attachment point for reconstruction of a posterior cruciate ligament, the commonly used guider usually comprises a support, and a guide rod and a swing arm which are installed on the support, in the process of a posterior cruciate ligament reconstruction surgery, the swing arm of the posterior cruciate ligament tibial guider is implanted into a joint cavity at the inner side of a knee joint, the front end of the swing arm is arranged at the position, which is about 10mm away from a tibial dead point, behind a tibial platform, the front end of the guide rod abuts against a tibia, a guide pin penetrates into a guide slideway of the guide rod, and when the guide pin penetrates through the tibial platform, the guide pin penetrates out of the tibial platform and is the tibial dead point on the posterior cruciate ligament side.
After the posterior cruciate ligament tibia guide device in the related technology is adopted to position the posterior cruciate ligament tibia side insertion point, the guide device needs to be integrally detached, and a posterior cruciate ligament baffle is arranged at the posterior cruciate ligament tibia side insertion point. Meanwhile, in order to avoid damaging the posterior vascular nerve structure, a posterior medial approach needs to be made, the tibial bone canal is opened after the posterior medial structure is widely loosened, the technical requirement of the operation is high, the operation time is long, and the risk of postoperative thrombosis can be increased. Affecting the efficiency and efficacy of the surgery.
Fig. 1 is a schematic perspective view of a tibial side positioning guide for posterior cruciate ligament reconstruction according to an embodiment of the present invention. Fig. 2 is an assembly structure diagram of a tibia lateral positioning guide for posterior cruciate ligament reconstruction according to an embodiment of the present invention. Fig. 3 is a schematic perspective view of a positioning guide frame according to an embodiment of the present invention. Fig. 4 is a schematic perspective view of a distal end positioning frame according to an embodiment of the present invention. Fig. 5 is a schematic perspective view of a first adjusting sleeve according to an embodiment of the present invention. Fig. 6 is a schematic perspective view of a second adjusting sleeve according to an embodiment of the present invention. As shown in fig. 1 to 6, by practice, the applicant provides a posterior cruciate ligament reconstruction tibial side positioning guide comprising a positioning guide frame 1, a distal positioning frame 2, a first adjustment sleeve 3 and a second adjustment sleeve 4.
The positioning guide frame 1 comprises a positioning cylinder 11 and a supporting arm 12, the supporting arm 12 is arranged on the side wall of the positioning cylinder 11 in a protruding mode along the radial direction of the positioning cylinder 11, and an arc-shaped swing arm slide rail 121 is arranged on the supporting arm 12. The distal positioning frame 2 comprises an adjusting swing arm 21 and a positioning arm 22. The adjusting swing arm 21 is slidably mounted in the arc-shaped swing arm slide rail 121, one end of the positioning arm 22 is connected with the adjusting swing arm 21 and is bent towards the axis direction of the positioning cylinder 11, and the other end of the positioning arm 22 is provided with a tibia hook 221. The first adjusting sleeve 3 is slidably mounted in the positioning cylinder 11, and the first adjusting sleeve 3 has a kirschner wire guide hole 31 provided therethrough in the axial direction. The second adjusting sleeve 4 is slidably mounted in the positioning cylinder 11, the second adjusting sleeve 4 has a hollow drill guide hole 41 arranged to penetrate in the axial direction, and the diameter of the hollow drill guide hole 41 is larger than that of the kirschner wire guide hole 31.
The embodiment of the utility model provides an in, when needs carry out back cruciate ligament and rebuild the operation, can be at first adjust location leading truck 1 and distal end locating rack 2 according to the specific anatomical features that patient's imaging examination reachs before the art reachs. Through letting adjust swing arm 21 along the arc swing arm slide 121 slip on the support arm 12, adjust the contained angle between the axis of the locating arm 22 that one end and regulation swing arm 21 are connected and a location section of thick bamboo 11, make the shin bone couple 221 that is located the locating arm 22 other end catch on the footprint district of back cruciate ligament shin bone side dead center, accomplish preliminary location. And then the first adjusting sleeve 3 is assembled in the positioning cylinder 11 in a sliding manner along the axial direction, the Kirschner wire guide hole 31 is used for guiding, the Kirschner wire penetrates into the Kirschner wire guide hole 31 and is implanted into the tibia, and the Kirschner wire can abut against the end surface of the tibial side dead point of the posterior cruciate ligament hooked by the tibial hook 221 after penetrating out, so that the positioning is completed. And the needle outlet position of the Kirschner wire penetrating out of the tibia is the lateral dead point of the tibia of the posterior cruciate ligament, at the moment, the first adjusting sleeve 3 is detached and separated from the positioning cylinder 11 along the axial direction of the positioning cylinder 11, and the Kirschner wire is kept implanted into the tibia. After that, the second adjusting sleeve 4 is assembled into the positioning cylinder 11 in a sliding way along the axial direction, so that the Kirschner wire which is implanted into the tibia is positioned in the hollow drill guiding hole 41. Because the aperture of the hollow drill guide hole 41 is larger than that of the Kirschner wire guide hole 31, an annular space for the hollow drill to go down is formed between the hole wall of the hollow drill guide hole 41 and the Kirschner wire. At this time, the corresponding hollow drill is put into the hollow drill guide hole 41, so that the tibial bone canal can be opened along the implanting direction of the Kirschner wire, and the positioning accuracy is ensured. And through changing the first adjusting sleeve 3 and the second adjusting sleeve 4 with different internal diameters, the tibial bone canal can be directly opened without integrally removing the positioning guider after the Kirschner wire is implanted and positioned. Simple structure, easily operation can fix a position back cruciate ligament shin bone lateral insertion point and make the bone way safely accurately, shortens the operation time of back cruciate ligament reconstruction operation, improves operation efficiency.
Optionally, the hole diameter of the kirschner wire guide hole 31 is 2mm. The tibia lateral locating guider for reconstructing the posterior cruciate ligament comprises a plurality of second adjusting sleeves 4, and the hole diameters of hollow drill guiding holes 41 of the second adjusting sleeves 4 are 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm and 10mm respectively. Exemplarily, in the embodiment of the present invention, after the kirschner wire with the diameter of 2mm is guided and implanted by using the first adjusting sleeve 3, the second adjusting sleeve 4 with the hollow drill guiding hole 41 with different hole diameters can be matched and connected with the positioning guiding frame 1 according to the actual operation requirement, so as to correspond to the operation of getting through the tibial bone canal by using the hollow drills with different sizes.
Optionally, the inner wall of the positioning cylinder 11 is provided with a plurality of first limiting latch teeth 111, the plurality of first limiting latch teeth 111 are uniformly arranged at intervals along the axial direction of the positioning cylinder 11, and each first limiting latch tooth 111 is arranged in a semi-circular arc shape and protrudes inwards along the radial direction of the positioning cylinder 11; the outer wall of the first adjusting sleeve 3 is provided with a plurality of second limiting latch teeth 32 matched with the plurality of first limiting latch teeth 111, the plurality of second limiting latch teeth 32 are uniformly arranged at intervals along the axial direction of the first adjusting sleeve 3, and each second limiting latch tooth 32 is arranged in a semi-circular arc shape and protrudes outwards along the radial direction of the first adjusting sleeve 3; the outer wall of the second adjusting sleeve 4 is provided with a plurality of third limiting latch teeth 42 matched with the plurality of first limiting latch teeth 111, the plurality of third limiting latch teeth 42 are uniformly arranged at intervals along the axis direction of the second adjusting sleeve 4, and each third limiting latch tooth 42 is arranged in a semi-arc shape in a radial outward protruding mode along the second adjusting sleeve 4. Exemplarily, in the embodiment of the present invention, when the first adjusting sleeve 3 is assembled with the positioning guide frame 1, the first adjusting sleeve 3 may be coaxially aligned with the positioning cylinder 11, so that the plurality of second limiting latch teeth 32 outside the first adjusting sleeve 3 are staggered from the plurality of first limiting latch teeth 111 on the inner wall of the positioning cylinder 11, and then the first adjusting sleeve 3 is slid into the positioning cylinder 11 along the axial direction until the one end of the first adjusting sleeve 3 reaches a specified distance from the needle insertion point on the tibia. Then, the first adjusting sleeve 3 is rotated by 180 degrees along the axial direction, so that the plurality of second limiting latch teeth 32 and the plurality of first limiting latch teeth 111 are meshed with each other, and the assembly can be completed. The plurality of first limiting latch teeth 111 and the plurality of second limiting latch teeth 32 which are meshed with each other can ensure that the first adjusting sleeve 3 is fixedly connected with the positioning guide frame 1, and the first adjusting sleeve 3 is prevented from sliding relatively along the axial direction during operation. The whole structure is simple, the assembly and the disassembly are convenient, and the operation efficiency can be further improved.
It should be noted that, fixed connection can be realized through a plurality of spacing latch 111 meshes mutually of a plurality of third spacing latch 42 and a plurality of first spacing latch 111 of a location section of thick bamboo 11 equally to second adjusting sleeve 4, and is the same with the assembly methods of first adjusting sleeve 3 and a location section of thick bamboo 11, the embodiment of the utility model is not repeated herein.
Optionally, the tibia hook 221 has a limit stopper 2211 protruding toward the positioning cylinder 11 on both sides in the length direction, and the two limit stoppers 2211 are parallel to each other and symmetrically arranged with respect to the tibia hook 221. Exemplarily, in the embodiment of the utility model provides an in penetrate the kirschner wire guiding hole 31 and implant in the shin bone with the kirschner wire, the kirschner wire is wearing out and is catching on the terminal surface counterbalance of back cruciate ligament shin bone side dead point with shin bone couple 221 after, two limit baffle 2211 that are located shin bone couple 221 length direction both sides can carry out spacing fixed to the kirschner wire of wearing out, prevent the dismouting replacement at first adjusting sleeve 3 and second adjusting sleeve 4, and follow-up in-process that carries out the operation that the shin bone way was put through, the kirschner wire takes place to rock and the skew, guarantee its location fastening, the positional stability has further been improved.
Optionally, the edge of the limiting baffle 2211 and the connection with the tibial hook 221 are both arc chamfer structures. Exemplarily, in the embodiment of the present invention, the edge of the limit baffle 2211 and the connection with the tibia hook 221 are all set to be a smooth transition structure with a circular arc chamfer, so as to avoid damage to the vascular nerve nearby due to slight shaking during the process of hooking the tibia of the posterior cruciate ligament and performing the operation, thereby further improving the safety and the operation efficacy of the positioning guide.
Optionally, the adjusting swing arm 21 is provided with a scale mark 211 for displaying an included angle between the positioning arm 22 and the axis of the positioning cylinder 11, and one end of the supporting arm 12 is provided with a pointing mark 122 matched with the scale mark 211. Exemplarily, in the embodiment of the present invention, when the user performs an operation and adjusts the adjustment swing arm 21, the user can visually confirm the included angle between the axes of the positioning arm 22 and the positioning cylinder 11 through the scale mark 211 pointed by the directional mark 122, so as to ensure the adjustment precision, and enable the tibia hook 221 to accurately hook the target position of the tibia of the posterior cruciate ligament, thereby further improving the operation efficiency.
Optionally, the posterior cruciate ligament reconstruction tibia positioning guide further comprises a locking bolt 5, a first bolt hole 123 matched with the locking bolt 5 is formed in the support arm 12, the first bolt hole 123 is communicated with the arc-shaped swing arm slide rail 121, and a second bolt hole 212 matched with the locking bolt 5 is formed in the adjusting swing arm 21. Exemplarily, in the embodiment of the present invention, after adjusting the swing arm 21 to the required position along the arc-shaped swing arm slide 121, the locking bolt 5 can be turned by screwing, the screw rod of the locking bolt 5 sequentially passes through the first bolt hole 123 and the second bolt hole 212, the adjustment swing arm 21 is limited and fixed in the extending direction of the arc-shaped swing arm slide 121, the relative sliding of the adjustment swing arm 21 and the whole distal end positioning frame 2 relative to the positioning guide frame 1 in the operation is prevented, and the positioning accuracy of the positioning guide is further improved.
Alternatively, the adjusting swing arm 21 has a second bolt hole 212, and the supporting arm 12 has a plurality of first bolt holes 123, and the plurality of first bolt holes 123 are uniformly spaced along the extending direction of the arc-shaped swing arm slideway 121. Exemplarily, in the embodiment of the present invention, through evenly arranging a plurality of first bolt holes 123 along the extending direction of the arc swing arm slide rail 121 on the support arm 12 at intervals, in the process of adjusting the sliding of the adjusting swing arm 21 in the arc swing arm slide rail 121, every time adjusting a certain angle range, the second bolt hole 212 thereon can find the corresponding first bolt hole 123 to align and carry out fixed connection through the locking bolt 5, which improves the adjusting range of the distal end positioning frame 2 and the width of the positioning region. And adjust on the swing arm 21 because only need set up a second bolt hole 212, also can realize setting up more accurate scale mark 211 in its extending direction, perhaps carry out fretwork processing, reduce the material use amount, reduce manufacturing cost.
Optionally, the positioning guide frame 1, the distal end positioning frame 2, the first adjusting sleeve 3 and the second adjusting sleeve 4 are stainless steel structural members. Exemplarily, in the embodiment of the present invention, the positioning guide frame 1, the distal positioning frame 2, the first adjusting sleeve 3, and the second adjusting sleeve 4 are all made of stainless steel material, for example, made of precipitation, hardening, and martensitic stainless steel (05 Cr17Ni4Cu4 Nb), so that the positioning guide has high strength, hardness, corrosion resistance, and the like, and the service life of the positioning guide is effectively prolonged.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item appearing in front of the word "comprising" or "comprises" includes the element or item listed after the word "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
The above description is only an optional embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A posterior cruciate ligament reconstruction tibial side positioning guide comprising:
the positioning guide frame (1) comprises a positioning cylinder (11) and a supporting arm (12), the supporting arm (12) is arranged on the side wall of the positioning cylinder (11) in a protruding mode along the radial direction of the positioning cylinder (11), and an arc-shaped swing arm slide way (121) is arranged on the supporting arm (12);
the far-end positioning frame (2) comprises an adjusting swing arm (21) and a positioning arm (22), the adjusting swing arm (21) is slidably mounted in the arc-shaped swing arm slide way (121), one end of the positioning arm (22) is connected with the adjusting swing arm (21) and is bent towards the axis direction of the positioning cylinder (11), and the other end of the positioning arm (22) is provided with a tibia hook (221);
the first adjusting sleeve (3) is slidably mounted in the positioning cylinder (11), the first adjusting sleeve (3) is provided with a Kirschner wire guide hole (31) which penetrates through the first adjusting sleeve along the axial direction, and the diameter of the Kirschner wire guide hole (31) is 2mm;
a plurality of second adjusting sleeve (4), second adjusting sleeve (4) slidable install in location section of thick bamboo (11), second adjusting sleeve (4) have along axial direction run through hollow drill guiding hole (41) that set up, the aperture of hollow drill guiding hole (41) is greater than the aperture of kirschner wire guiding hole (31), and is a plurality of second adjusting sleeve (4) the aperture of hollow drill guiding hole (41) is 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm and 10mm respectively.
2. The posterior cruciate ligament reconstruction tibial side positioning guide device according to claim 1, wherein the positioning barrel (11) has a plurality of first limiting latch teeth (111) on the inner wall, the plurality of first limiting latch teeth (111) are uniformly spaced along the axial direction of the positioning barrel (11), and each first limiting latch tooth (111) is arranged in a semi-circular arc shape protruding inwards along the radial direction of the positioning barrel (11); the outer wall of the first adjusting sleeve (3) is provided with a plurality of second limiting clamping teeth (32) matched with the first limiting clamping teeth (111), the second limiting clamping teeth (32) are uniformly arranged at intervals along the axial direction of the first adjusting sleeve (3), and each second limiting clamping tooth (32) is arranged in a semi-circular arc shape in a protruding mode along the radial direction of the first adjusting sleeve (3); have on the outer wall of second adjusting sleeve (4) with a plurality of spacing latch (42) of a plurality of third of first spacing latch (111) assorted, a plurality of spacing latch (42) of third are followed the even interval arrangement in axis direction of second adjusting sleeve (4), every spacing latch (42) of third are followed the radial outside protrusion of second adjusting sleeve (4) is arranged and is the semicircle arcuation.
3. The posterior cruciate ligament reconstruction tibial side positioning guide according to claim 1, wherein the tibial hook (221) has a limiting stopper (2211) protruding toward the positioning barrel (11) at both sides in the length direction, and the two limiting stoppers (2211) are parallel to each other and symmetrically arranged with respect to the tibial hook (221).
4. The posterior cruciate ligament reconstruction tibial side positioning guide of claim 3, wherein the edge of the limit stop (2211) and the connection with the tibial hook (221) are both arc chamfered structures.
5. The posterior cruciate ligament reconstruction tibial side positioning guide according to claim 1, wherein the adjusting swing arm (21) has a scale mark (211) for displaying the included angle between the positioning arm (22) and the axis of the positioning barrel (11), and one end of the supporting arm (12) has a pointing mark (122) matching with the scale mark (211).
6. The posterior cruciate ligament reconstruction tibial side positioning guide according to claim 1, wherein the posterior cruciate ligament reconstruction tibial side positioning guide further comprises a locking bolt (5), the supporting arm (12) has a first bolt hole (123) matching with the locking bolt (5), the first bolt hole (123) communicates with the arc-shaped swing arm slideway (121), and the adjusting swing arm (21) has a second bolt hole (212) matching with the locking bolt (5).
7. The posterior cruciate ligament reconstruction tibial side positioning guide according to claim 6, wherein the adjusting swing arm (21) has one second bolt hole (212), the support arm (12) has a plurality of first bolt holes (123), and the plurality of first bolt holes (123) are uniformly spaced along the extension direction of the arc-shaped swing arm slideway (121).
8. The posterior cruciate ligament reconstruction tibial side positioning guide according to any one of claims 1 to 7, wherein the positioning guide (1), the distal positioning frame (2), the first adjustment sleeve (3) and the second adjustment sleeve (4) are stainless steel structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123296560.0U CN217744563U (en) | 2021-12-24 | 2021-12-24 | Tibia side positioning guider for reconstruction of posterior cruciate ligament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123296560.0U CN217744563U (en) | 2021-12-24 | 2021-12-24 | Tibia side positioning guider for reconstruction of posterior cruciate ligament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217744563U true CN217744563U (en) | 2022-11-08 |
Family
ID=83869852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123296560.0U Active CN217744563U (en) | 2021-12-24 | 2021-12-24 | Tibia side positioning guider for reconstruction of posterior cruciate ligament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217744563U (en) |
-
2021
- 2021-12-24 CN CN202123296560.0U patent/CN217744563U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10123811B2 (en) | Anatomic femoral guide | |
| US7842042B2 (en) | Convergent tunnel guide apparatus and method | |
| US8945136B2 (en) | Intramedullary nail aiming device | |
| US9271745B2 (en) | Cross pinning guide devices and methods | |
| EP2257240B1 (en) | A device for use during ligament reconstruction surgery | |
| US10463379B2 (en) | Customized surgical cutting guide for total knee replacement and method for making thereof | |
| CN104013456A (en) | Femoral orthopaedic surgical instrument including a measurement device and method of use of same | |
| WO1991006250A1 (en) | An orthopedic drill guide device | |
| US20160310191A1 (en) | Articulating Syndesmosis Targeting Guide Device and Method | |
| CN206576942U (en) | A kind of High Tibial Osteotomy guider | |
| WO2009134520A1 (en) | Ligament reconstruction guide assembly and methods of use | |
| US20200375615A1 (en) | Anterior cruciate ligament reconstruction | |
| US20140171952A1 (en) | External Tibial Mill Guide and Method of Use | |
| CN217744563U (en) | Tibia side positioning guider for reconstruction of posterior cruciate ligament | |
| AU2015284650B2 (en) | Phalangeal head plate | |
| CN209770551U (en) | Reconstruction locator for dissecting anterior cruciate ligament through tibial bone canal | |
| WO2013136303A1 (en) | A positioning guide for positioning a bone cutting guide assembly and a bone cutting guide system | |
| CN216394179U (en) | Femoral locator for determining position of insertion needle | |
| CN215018455U (en) | Device in knee joint anterior cruciate ligament reconstruction | |
| CN219021468U (en) | Knee joint anterior and posterior cruciate ligament femur side tunnel positioner | |
| CN105744900B (en) | Surgical clip | |
| CN217448021U (en) | Positioning tool for positioning original hip joint center in hip joint replacement | |
| CN215080110U (en) | Animal experiment bone cartilage defect molding device | |
| CN108245252B (en) | Multi-tunnel guide management system in knee joint multiple ligament injury operation | |
| CN114366332A (en) | Positioner for positioning original hip joint center in hip joint replacement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240313 Address after: 434000 Building 1, Wangjiagang Road, Jingzhou Development Zone, Jingzhou City, Hubei Province Patentee after: Hubei Guizhi Trading Co.,Ltd. Country or region after: China Address before: 430030 No. 1095 Jiefang Avenue, Hubei, Wuhan Patentee before: TONGJI HOSPITAL TONGJI MEDICAL College HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY Country or region before: China |