Arc-shaped acetabular cup installer and improved driving head structure thereof

Abstract

The utility model discloses an arc-shaped acetabular cup installer and an improved driving head structure thereof, the arc-shaped acetabular cup installer comprises an acetabular cup and an installer used for installing the acetabular cup, the installer is connected with the acetabular cup in a clamping manner, the installer comprises a handle, the handle is connected with an arc-shaped main body, an arc-shaped groove is arranged below the main body, and the arc-shaped groove is connected with the installer. A groove is formed in the surface of the arc-shaped groove, a connecting rod is arranged in the arc-shaped groove, a locking bolt is arranged below the connecting rod, a clamping piece used for limiting angle rotation of the connecting rod is arranged in the groove, three protruding points are designed on the driving head, and the protruding points are accurately matched with a circular groove in the inner wall of the acetabular cup. The driving-in head and the acetabular cup are tightly combined in a clamping mode, the anti-rotation capacity in the installation process is remarkably improved, and installation position deviation caused by rotation is prevented.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an arc-shaped acetabular cup installer and an improved driving head structure thereof. Background Art

[0002] Traditional straight-line acetabular cup installers are often difficult to operate effectively in complex or confined surgical spaces or industrial environments. Space constraints can lead to installation difficulties or damage to surrounding structures. Furthermore, the heads of conventional impactors often utilize a threaded connection. While installation can be achieved by tapping the end face of the main body, this lacks anti-rotational properties in certain applications, which can easily lead to misalignment. Summary of the Invention

[0003] In view of the above problems, the present invention aims to provide an arc-shaped acetabular cup installer and an improved driving head structure thereof.

[0004] To achieve this technical purpose, the solution of the utility model is: an arc-shaped acetabular cup installer and an improved driving head structure thereof, including an acetabular cup and an installer for installing the acetabular cup, the installer is engaged with the acetabular cup, the installer includes a handle, the handle is connected to an arc-shaped main body, an arc-shaped groove is provided below the main body, a groove is provided on the surface of the arc-shaped groove, a connecting rod is provided in the arc-shaped groove, a locking bolt is provided below the connecting rod, and a clamping part for limiting the angular rotation of the connecting rod is provided in the groove.

[0005] Preferably, the lower end of the main body is provided with a driving head, and the driving head has three protrusions evenly arranged along the circumferential direction of the driving head. The bottom end of the inner wall of the acetabulum is provided with a circular groove matching the protrusions, and the circular grooves are evenly arranged in six numbers along the circumferential direction of the acetabulum.

[0006] Preferably, a first U-shaped sleeve is provided below the connecting rod, a second U-shaped sleeve is provided above the locking bolt, a connecting block is provided at the connection between the first U-shaped sleeve and the second U-shaped sleeve, and the connecting rod and the locking bolt realize the installation angle through the connecting block.

[0007] Preferably, the clamping member includes a clamping block matched with the groove, pins are provided on both sides of the clamping block and the button is connected through the pins, and a spring is provided between the button and the clamping block.

[0008] Preferably, the locking bolt passes through the main body and is connected to the acetabular cup.

[0009] The beneficial effects of the present utility model are:

[0010] The curved arc design combined with the three-point locking mechanism effectively solves the operational difficulties of traditional installers in complex environments and improves the accuracy and stability of installation.

[0011] The driving head is designed with three protrusions, which precisely match the circular grooves on the inner wall of the acetabular cup. The driving head and the acetabular cup are tightly combined by snapping together, which significantly improves the anti-rotation ability during installation and prevents the installation position from shifting due to rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 A schematic diagram of the driving head structure;

[0014] Figure 3 Schematic diagram of the acetabular cup structure;

[0015] Figure 4 Schematic diagram of the connection structure between the connecting rod and the locking bolt;

[0016] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0017] Figure 6 It is a schematic diagram of the card connector structure.

[0018] In the figure: 1, mortar cup 2, handle 3, main body 4, connecting rod 5, locking bolt 6, driving head 7, protrusion 8, circular groove 9, first U-shaped sleeve 10, second U-shaped sleeve 11, clamping block 12, button 13, connecting block. DETAILED DESCRIPTION

[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0020] As shown in the figure, a specific embodiment of the present invention is an arc-shaped acetabular cup installer and an improved driving head structure thereof, including an acetabular cup 1 and an installer for installing the acetabular cup 1, the installer is engaged with the acetabular cup 1, and the installer includes a handle 2, the handle 2 is connected to an arc-shaped main body 3, an arc-shaped groove is provided below the main body 3, a groove is provided on the surface of the arc-shaped groove, a connecting rod 4 is provided in the arc-shaped groove, a locking bolt 5 is provided below the connecting rod 4, a clamping member for limiting the angular rotation of the connecting rod 4 is provided in the groove, a first U-shaped shaft sleeve 9 is provided below the connecting rod 4, a second U-shaped shaft sleeve 10 is provided above the locking bolt 5, a connecting block 13 is provided at the connection between the first U-shaped shaft sleeve 9 and the second U-shaped shaft sleeve 10, the connecting rod 4 and the locking bolt 5 realize the installation angle through the connecting block 13, and the locking bolt 5 passes through and connects the acetabular cup 1.

[0021] Specifically, the main body 3 of the installer adopts an arc-shaped or bent design, which cooperates with the connection between the connecting rod 4 and the locking bolt 5. A screw cap is provided at the upper end of the connecting rod 4, which enables flexible adjustment of the installation angle according to the actual situation of the operation or industrial site, avoids obstacles, and reduces operational difficulty and space limitations.

[0022] The lower end of the main body 3 is provided with a driving head 6, and the driving head 6 is evenly provided with three protrusions 7 along the circumferential direction of the driving head 6. The bottom end of the inner wall of the acetabulum 1 is provided with a circular groove 8 that matches the protrusion 7. There are six circular grooves 8 evenly provided along the circumferential direction of the acetabulum 1.

[0023] Specifically, the driving head 6 is designed with three protrusions 7, which precisely match the circular grooves 8 on the inner wall of the acetabular cup 1. The driving head 6 is tightly combined with the acetabular cup 1 through a snap-fitting manner, realizing a three-point snap-fit ​​mechanism, which significantly improves the anti-rotation ability during the installation process.

[0024] The clamping member includes a clamping block 11 that matches the groove. Pins are provided on both sides of the clamping block 11 and a button 12 is connected via the pins. A spring is provided between the button 12 and the clamping block 11.

[0025] Specifically, pin holes are provided on both sides of the upper end face of the block 11 and the end face of the button 12, and pins are inserted into the holes for fixing the button 12 on both sides of the block 11 and for rotating the button 12. Spring grooves are provided on both side faces of the block 11 for placing springs, and the other side of the spring abuts against the side face of the button 12. By toggling the button 12 and rotating the button 12 through the pin, the button 12 abuts against the outer wall of the connecting rod 4, thereby limiting the rotation of the connecting rod 4 and ensuring the installation accuracy.

[0026] Working principle: During installation, first adjust the arc to a suitable angle so that the three-point protrusion 7 is aligned with the three circular grooves 8 in the inner bottom wall of the acetabulum 1. Then, clamp the connecting rod 4 with the clamping piece, and then apply appropriate force to the end face of the main body 3 to knock it so that the driving head 6 is tightly engaged with the acetabulum 1 to complete the installation.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent replacements and improvements made to the above embodiments based on the technical essence of the present invention should be included in the scope of protection of the technical solution of the present invention.

Claims

1. An arc-shaped acetabular cup installer and an improved driving head structure thereof, comprising an acetabular cup (1) and an installer for installing the acetabular cup (1), characterized in that: The mounter is engaged with the acetabulum (1), and the mounter comprises a handle (2), the handle (2) is connected to an arc-shaped main body (3), an arc-shaped groove is provided below the main body (3), a groove is provided on the surface of the arc-shaped groove, a connecting rod (4) is provided in the arc-shaped groove, a locking bolt (5) is provided below the connecting rod (4), and a clamping member for limiting the angular rotation of the connecting rod (4) is provided in the groove.

2. The arc-shaped acetabular cup installer and its improved driving head structure according to claim 1, characterized in that: The lower end of the main body (3) is provided with a driving head (6), and the driving head (6) is evenly provided with three protrusions (7) along the circumferential direction of the driving head (6). The bottom end of the inner wall of the mortar cup (1) is provided with a circular groove (8) matching the protrusion (7), and six circular grooves (8) are evenly provided along the circumferential direction of the mortar cup (1).

3. The arc-shaped acetabular cup installer and its improved driving head structure according to claim 1, characterized in that: A first U-shaped shaft sleeve (9) is provided below the connecting rod (4), a second U-shaped shaft sleeve (10) is provided above the locking bolt (5), a connecting block (13) is provided at the connection between the first U-shaped shaft sleeve (9) and the second U-shaped shaft sleeve (10), and the connecting rod (4) and the locking bolt (5) are installed at an angle via the connecting block (13).

4. The arc-shaped acetabular cup installer and its improved driving head structure according to claim 1, characterized in that: The clamping member comprises a clamping block (11) matched with the groove, pins are provided on both sides of the clamping block (11) and a button (12) is connected via the pins, and a spring is provided between the button (12) and the clamping block (11).

5. The arc-shaped acetabular cup installer and its improved driving head structure according to claim 1, characterized in that: The locking bolt (5) passes through the main body (3) and is connected to the acetabulum (1).

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