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CN-120938537-B - Multifunctional knee joint marrow opening combined guide plate

CN120938537BCN 120938537 BCN120938537 BCN 120938537BCN-120938537-B

Abstract

The application relates to a multifunctional knee joint marrow opening combined guide plate which comprises a guide plate, wherein the guide plate is provided with an osteotomy opening, the guide plate is used for being connected with femoral tibia, and a plurality of Kirschner pinholes are formed in the guide plate. When the device is used, the guide plate is connected to the corresponding femur or tibia, the Kirschner wire is drilled into the bone through the Kirschner wire hole, so that the guide plate is fixed, the tibia or femur is cut through the osteotomy opening, the error in the osteotomy process is reduced, the osteotomy precision is improved, and the treatment effect is improved.

Inventors

  • XU NING

Assignees

  • 北京力达康科技有限公司

Dates

Publication Date
20260512
Application Date
20250819

Claims (5)

  1. 1. A knee joint multifunctional marrow opening combined guide plate is characterized by comprising a guide plate (100), wherein the guide plate (100) is used for being connected with femoral tibia, a plurality of Kirschner pinholes (300) are formed in the guide plate (100), a plurality of guide cylinders (110) are connected to the guide plate (100), each guide cylinder (110) is respectively communicated with each Kirschner pinhole (300), the guide cylinders (110) are used for guiding a Kirschner needle into the Kirschner pinholes (300), a marrow opening positioning hole (400) is formed in the guide plate (100), the guide plate (100) is connected with a guide cylinder (120), the guide cylinder (120) is communicated with the marrow opening positioning hole (400), the guide cylinder (120) is used for guiding the medullary needle into the marrow opening positioning hole (400), the guide cylinder (110) is connected with the guide plate (100) through a connecting block (310), the Kirschner pinholes (300) form bar-shaped holes, the guide cylinders (310) are matched into the holes in a sliding mode along the length direction of the bar-shaped holes, a first locking component (310) is connected with the guide plate (100), the first locking component (900) is connected with the guide plate (600) through the connecting block (600), the locating plate (600) is used for being in contact with the femoral tibia, the locating plate (600) and the guide plate (100) are respectively arranged on two sides of the femoral tibia, the connecting rod (500) is matched with the guide plate (100) in a sliding mode and drives the locating plate (600) to be close to or far away from the guide plate (100), the guide plate (100) is connected with a second locking assembly (800), the second locking assembly (800) is used for locking the connecting rod (500) on the guide plate (100), and when the connecting rod (500) is locked on the guide plate (100) through the second locking assembly (800), the locating plate (600) is in contact with the femoral tibia.
  2. 2. The multi-functional split-core guide plate for knee joint according to claim 1, wherein the first locking component (900) comprises an abutting plate (910) and a pushing piece, the abutting plate (910) is in sliding fit with the connecting block (310), and the pushing piece is used for pushing the abutting plate (910) to move and driving the abutting plate (910) to abut against the guide plate (100).
  3. 3. The multifunctional knee joint marrow opening combined guide plate according to claim 2, wherein the abutting plate (910) is connected with a plurality of friction strips (912) close to the guide plate (100), and the friction strips (912) are used for being in contact with the guide plate (100).
  4. 4. The multifunctional knee joint marrow opening combined guide plate of claim 1, wherein the second locking component (800) comprises a positioning block (810) and a moving part, the connecting rod (500) is provided with a limiting hole (521), and the positioning block (810) is used for being clamped in the limiting hole (521).
  5. 5. The multifunctional knee joint marrow opening combined guide plate of claim 4, wherein the moving part is a spring (820), one end of the spring (820) is connected to the guide plate (100), the other end of the spring (820) is connected to the positioning block (810), and the spring (820) is used for driving the positioning block (810) to move and driving the positioning block (810) to be clamped in the limiting hole (521).

Description

Multifunctional knee joint marrow opening combined guide plate Technical Field The application relates to the field of implant orthopaedics technology, in particular to a multifunctional marrow opening combined guide plate for knee joints. Background The joints are important weight-bearing joints of lower limbs, and when knee joint diseases are serious, the mobility of patients after suffering is often influenced, so that artificial knee joint replacement operation is required. In knee replacement surgery, a part of the original bone needs to be cut off to replace an artificial joint. Currently, in order to ensure that the prosthesis and the bone contact surface are kept in close contact during artificial knee joint replacement surgery, osteotomy leveling is usually required, and osteotomy operation is mainly performed by experience of an operator. Aiming at the related technology, due to the difference of the operation experience level of operators, the situation that the osteotomy position is in error influences the placement position and direction of the femoral prosthesis and the operation treatment effect. Disclosure of Invention In order to reduce the error in osteotomy and improve the treatment effect of the operation, the application provides a multifunctional marrow opening combined guide plate for knee joints. The application provides a multifunctional knee joint marrow opening combined guide plate, which adopts the following technical scheme: the utility model provides a multi-functional marrow combination baffle that opens of knee joint, includes the deflector, the deflector begins to have the osteotomy mouth, the deflector is used for being connected with the femoral tibia, a plurality of k's pinholes have been seted up to the deflector. Through adopting above-mentioned technical scheme, during the use, connect the deflector on corresponding femoral tibia, the kirschner wire is bored into the bone through the kirschner wire hole to this is accomplished the fixed of deflector, and the osteotomy is according to carrying out the osteotomy to femoral tibia through the osteotomy mouth, with this error that has reduced the osteotomy process, improves the osteotomy precision, improves treatment. Optionally, the deflector is connected with a plurality of guide cylinders, each guide cylinder is communicated with each k-wire hole respectively, and the guide cylinder is used for guiding the k-wire into the k-wire hole. Through adopting above-mentioned technical scheme, add the guide cylinder for during the use, the kirschner wire removes along the guide cylinder and is close to the kirschner wire hole, with this angular displacement when avoiding the kirschner wire to pass the kirschner wire hole as far as possible, further improves the precision of operation. Optionally, the guide plate is provided with a marrow-opening positioning hole. Through adopting above-mentioned technical scheme, offered and cut the marrow locating hole, during the use, cut the marrow locating hole and fix a position the intramedullary nail, the intramedullary nail passes and cuts the marrow locating hole and accomplish femur condyle and tibia platform and cut the marrow, is convenient for get rid of impaired marrow to this is convenient for accomplish simultaneously femur condyle and tibia platform's the marrow of cutting and cuts the bone, and then improves work efficiency. Optionally, the guide plate is connected with a guide cylinder, the guide cylinder is communicated with the marrow opening locating hole, and the guide cylinder is used for guiding the marrow needle to the marrow opening locating hole for communication. By adopting the technical scheme, the guide cylinder is additionally arranged, so that the condition that the angle is deviated when the marrow needle approaches to the marrow opening locating hole is avoided as much as possible, and the marrow opening precision is improved. Optionally, the guide cylinder is connected in the deflector through the connecting block, the bar hole is formed to the kirschner wire hole, the connecting block slides along bar hole length direction and cooperates in the bar downthehole, the connecting block is connected with first locking component, first locking component is used for locking the connecting block in the deflector. Through adopting above-mentioned technical scheme, during the use, can remove the connecting block according to the operation needs, after removing corresponding position, lock the connecting block in the deflector through first locking element to this further adjustment k's pinhole's position improves the operation precision, avoids the influence that the error of production process attempt led to the fact as far as possible. Optionally, the first locking component comprises an abutting plate and a pushing piece, wherein the abutting plate is in sliding fit with the connecting block, and the pushing piece is used for pushing the abutting plate to move and d