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CN-122005158-A - Angle-adjustable positioning striker for acetabular cup implantation

CN122005158ACN 122005158 ACN122005158 ACN 122005158ACN-122005158-A

Abstract

The invention discloses an angle-adjustable positioning striker for acetabular cup implantation, which belongs to the technical field of medical instruments and comprises an adjusting and mounting assembly, a positioning and guiding mechanism, a striking assembly, a mounting rod and an acetabular cup positioning and combining mechanism, wherein the adjusting and mounting assembly is provided with the positioning and guiding mechanism, the adjusting and mounting assembly is used for adjusting the angle of the positioning and guiding mechanism, the left end of the mounting rod is fixedly provided with a connecting frame, the connecting frame is provided with the acetabular cup positioning and combining mechanism, the right end of the mounting rod is provided with the striking assembly, the positioning and guiding mechanism comprises a first guiding assembly and a second guiding assembly, the acetabular cup positioning and combining mechanism comprises a fixed positioning assembly and a telescopic inner supporting assembly, the fixed positioning assembly is arranged on the connecting frame, and the telescopic inner supporting assembly is arranged on the fixed positioning assembly. According to the invention, the telescopic inner support assembly is separated from the inner wall of the acetabular cup first, and then the fixed positioning assembly is removed, so that the acetabular cup is prevented from being separated from the bone groove by forced synchronous separation and traction, and the installation stability is ensured.

Inventors

  • DUAN TING
  • Zhong Xueyuan
  • LIU MENGDIE
  • DENG XIAOMAN

Assignees

  • 中国人民解放军陆军军医大学第一附属医院

Dates

Publication Date
20260512
Application Date
20260409

Claims (8)

  1. 1. The utility model provides an acetabular cup implants with adjustable angle's location striker, includes adjusting installation component (1), location guiding mechanism (2), strikes subassembly (3), installation pole (4) and acetabular cup location combination mechanism (5), its characterized in that: the adjusting and mounting assembly (1) is used for adjusting the angle of the positioning and guiding mechanism (2); the left end of the mounting rod (4) is fixedly provided with a connecting frame (41), and the connecting frame (41) is provided with an acetabular cup positioning and combining mechanism (5), and the right end of the mounting rod (4) is provided with a striking component (3); The positioning guide mechanism (2) comprises a first guide component (21) and a second guide component (22), the first guide component (21) for guiding the mounting rod (4) is mounted on the adjusting and mounting component (1), and the second guide component (22) for supporting and guiding the striking component (3) is mounted on the adjusting and mounting component (1); the acetabular cup positioning combination mechanism (5) comprises a fixed positioning assembly (51) and a telescopic inner support assembly (52), wherein the fixed positioning assembly (51) is installed on the connecting frame (41), and the telescopic inner support assembly (52) is installed on the fixed positioning assembly (51).
  2. 2. The angle-adjustable positioning striker for acetabular cup implantation according to claim 1, wherein the adjusting and mounting assembly (1) comprises a supporting plate (11), a supporting frame (12), a supporting seat (13), a locking structure (14) and a quick positioning assembly, the supporting frame (12) is rotatably mounted on the top of the supporting plate (11), the supporting seat (13) is rotatably mounted on the front side surface of the supporting frame (12), the rotating direction of the supporting frame (12) is perpendicular to the rotating direction of the supporting seat (13), a group of locking structures (14) are mounted on the supporting frame (12) and the supporting seat (13), and a group of quick positioning assembly which is convenient for enabling the mounting rod (4) to move to a specific angle is mounted on the supporting frame (12) and the supporting seat (13).
  3. 3. An adjustable angle positioning impactor for acetabular cup implantation according to claim 2, wherein the first guide assembly (21) and the second guide assembly (22) are both mounted to the support base (13).
  4. 4. The angle-adjustable positioning striker for acetabular cup implantation according to claim 3, wherein the first guide assembly (21) comprises a first mounting seat (211), a first fixing frame (212), a first guide cylinder (213) and a second guide cylinder (214), the first mounting seat (211) is detachably mounted on the left side of the front side surface of the supporting seat (13) through bolts, the first fixing frame (212) is fixedly mounted on the front side surface of the first mounting seat (211), the first guide cylinder (213) and the second guide cylinder (214) are fixedly mounted on the front side of the inner side of the first fixing frame (212), central axes of the first guide cylinder (213) and the second guide cylinder (214) are collinear, the mounting rod (4) penetrates through the middle parts of the first guide cylinder (213) and the second guide cylinder (214), and the outer walls of the mounting rod (4) are in limiting sliding connection with the inner walls of the first guide cylinder (213) and the second guide cylinder (214).
  5. 5. The angle-adjustable positioning striker for acetabular cup implantation according to claim 4, wherein the second guide assembly (22) comprises a second mounting seat (221), a second fixing frame (222), a guide frame (223) and a guide slide block (224), the second mounting seat (221) is detachably mounted on the right side of the front side surface of the supporting seat (13) through bolts, the second fixing frame (222) is fixedly mounted on the front side surface of the second mounting seat (221), the guide frame (223) is fixedly mounted on the front side of the inner side of the second fixing frame (222), a plurality of guide slide grooves are uniformly formed in the inner side of the guide frame (223) at equal intervals, and the guide slide block (224) is mounted in the guide slide grooves in a limiting sliding mode.
  6. 6. The angle-adjustable positioning beater for acetabular cup implantation according to claim 5, wherein the beating assembly (3) comprises a beating cylinder (31), a beating plate (32) and a stress seat (33), the plurality of guide sliding blocks (224) are fixedly arranged on the outer side of the beating cylinder (31), the beating plate (32) is fixedly arranged in the beating cylinder (31), the central axis of the beating cylinder (31) is collinear with the central axis of the first guide cylinder (213), the stress seat (33) is positioned in the beating cylinder (31), and the stress seat (33) is in threaded connection with the right end of the mounting rod (4).
  7. 7. The angle-adjustable positioning striker for acetabular cup implantation according to claim 6, wherein the fixed positioning assembly (51) comprises a semicircular mounting frame (511), an arc-shaped extension plate (512) and a mounting cylinder (514), the arc-shaped extension plate (512) is fixedly mounted on the right side of the semicircular mounting frame (511), the arc-shaped extension plate (512) is fixedly connected with the connecting frame (41), a plurality of two abdicating grooves (513) are formed in the semicircular mounting frame (511) and the arc-shaped extension plate (512) at equal intervals, the mounting cylinder (514) is fixedly mounted on the connecting frame (41), and the shape and the size of the semicircular mounting frame (511) are consistent with those of the inner part of the acetabular cup.
  8. 8. The adjustable angle positioning striker for acetabular cup implantation according to claim 7, wherein the telescopic inner support assembly (52) comprises an adaptive inner support (521), guide blocks (523), shrinkage limiting sliding blocks (525), synchronous moving blocks (526) and pushing cylinders (527), the adaptive inner support (521) is accommodated in each of the second yielding grooves (513), the outer wall of the adaptive inner support (521) is attached to the inner wall of the acetabular cup, a plurality of second guide grooves (522) are formed in the semicircular mounting frame (511), the outer wall of the guide blocks (523) is in limit sliding connection with the inner wall of the second guide grooves (522), the guide blocks (523) are fixedly mounted on the inner side of the adaptive inner support (521), the inside of each adaptive inner support (521) is provided with shrinkage limiting sliding grooves (524), the shrinkage limiting sliding blocks (525) are fixedly mounted on the synchronous moving blocks (526), the pushing cylinders (527) are fixedly mounted on the inner walls of the pushing cylinders (514), and the output ends of the pushing cylinders (514) penetrate through the right side faces of the fixed cylinders (514) and are connected with the right side faces of the fixed cylinders (514).

Description

Angle-adjustable positioning striker for acetabular cup implantation Technical Field The invention relates to the technical field of medical appliances, in particular to an angle-adjustable positioning striker for acetabular cup implantation. Background In hip joint replacement operation, an artificial acetabular cup is required to be accurately fixed on an acetabular bone bed of a patient, so that the rotation center of an acetabulum and joint matching degree are guaranteed, in the installation process, the artificial acetabular cup is positioned through a guide supporting device, and then a medical staff hits the guide supporting device, so that the acetabular cup is fixed on the bone bed. For example, chinese patent CN222075370U discloses a sensor-based acetabular positioning device, which can rapidly and accurately perform real-time positioning monitoring on the angle of an acetabular cup through the cooperation of a plurality of proximity sensors, and move an acetabular cup seat through a screw, a threaded sleeve and a sliding block. However, in order to ensure accuracy and stable installation, the guide supporting device is tightly attached to the inner wall of the acetabular cup, the attachment of the guide supporting device and the acetabular cup is also more tight in the process of fixing the acetabular cup to a bone bed by beating, and after the installation is completed, if the guide supporting device is separated from the acetabular cup by violence, the acetabular cup is easy to drive to shift. Based on the above, the invention designs an angle-adjustable positioning striker for acetabular cup implantation to solve the above problems. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, the present invention provides an angle-adjustable positioning impactor for acetabular cup implantation. In order to achieve the above purpose, the invention is realized by the following technical scheme: An angle-adjustable positioning striker for acetabular cup implantation comprises an adjusting and mounting assembly, a positioning and guiding mechanism, a striking assembly, a mounting rod and an acetabular cup positioning and combining mechanism; The adjusting and mounting assembly is used for adjusting the angle of the positioning and guiding mechanism; The left end of the mounting rod is fixedly provided with a connecting frame, and the connecting frame is provided with an acetabular cup positioning and combining mechanism; The positioning guide mechanism comprises a first guide component and a second guide component, the first guide component for guiding the mounting rod is arranged on the adjusting and mounting component, and the second guide component for supporting and guiding the striking component is arranged on the adjusting and mounting component; The acetabular cup positioning combination mechanism comprises a fixed positioning assembly and a telescopic inner support assembly, wherein the fixed positioning assembly is arranged on the connecting frame, and the telescopic inner support assembly is arranged on the fixed positioning assembly. Furthermore, the adjusting and mounting assembly comprises a supporting plate, a supporting frame, a supporting seat, a locking structure and a quick positioning assembly, wherein the supporting frame is rotatably mounted on the top of the supporting plate, the supporting seat is rotatably mounted on the front side surface of the supporting frame, the rotating direction of the supporting frame is perpendicular to that of the supporting seat, the supporting frame and the supporting seat are respectively provided with a group of locking structures, and the supporting frame and the supporting seat are respectively provided with a group of quick positioning assemblies which are convenient for enabling the mounting rod to move to a specific angle and are used for quick positioning. Furthermore, the first guide component and the second guide component are both arranged on the supporting seat. Furthermore, the first guide assembly comprises a first mounting seat, a first fixing frame, a first guide cylinder and a second guide cylinder, the first mounting seat is detachably mounted on the left side of the front side surface of the supporting seat through bolts, the first fixing frame is fixedly mounted on the front side surface of the first mounting seat, the first guide cylinder and the second guide cylinder are fixedly mounted on the front side of the inner side of the first fixing frame, the central axes of the first guide cylinder and the second guide cylinder are collinear, a mounting rod penetrates through the middle parts of the first guide cylinder and the second guide cylinder, and the outer wall of the mounting rod is in limiting sliding connection with the inner walls of the first guide cylinder and the second guide cylinder. Furthermore, the second guide assembly comprises a second installation seat, a second fixing frame, a gu