Background technology:

In the past 30 years, with the continuous development of total hip arthroplasty technology, its therapeutic effect has been fully affirmed, and the number of patients undergoing total hip arthroplasty is increasing. Total hip arthroplasty is mainly to take out the damaged hip joint and implant the prosthesis such as acetabulum and femoral stalk. The main instruments for the implantation of femoral stalk prosthesis are pulp cavity file and pulp cavity file handle. At present, the handle of the pulp cavity file designed by each manufacturer is different. The internal locking mechanism mostly adopts four-bar mechanism, and some manufacturers also use cam mechanism. These designs all adopt non detachable connection. When the pulp cavity file is used to expand the pulp cavity, the patient has a large amount of bleeding. The handle of the non detachable pulp cavity file cannot be easily cleaned and disinfected inside, which has the problem of incomplete cleaning and disinfection.

Technical implementation elements:

The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a handle of easy to remove and wash pulp cavity file with simple structure, simple use and convenient disassembly, so as to thoroughly clean and disinfect the inside of the handle of pulp cavity file, and ensure the safety of operation and the health of patients.

In order to achieve the above purpose, the handle of the utility model has the following structure:

The easy to remove and wash pulp cavity file handle comprises a hand handle, a hand handle and a pulp cavity file locking component.

The front end of the handle is provided with a pith cavity file insertion hole, and a groove is arranged along the length direction to connect the pith cavity file insertion hole, and the back end is provided with a knock end; the handle is detachable and connected to the handle, and can move relative to the handle in the connection state; the pith cavity file locking component is connected with the handle, and the handle is in the connection state , which is arranged in the groove, can move under the drive of the handle and lock the cavity file which is placed in the cavity file inserting hole; when the handle is in the disassembling state, the part of the cavity file locking assembly can be located outside the groove.

Pulp cavity file

In the handle of the easy to remove and wash pulp cavity file, the locking component of the pulp cavity file comprises a connecting rod and a locking block. One end of the connecting rod is connected with the handle. When the handle is in the connecting state, the connecting rod is arranged in the groove, and can move under the driving of the handle. When the handle is in the disassembling state, the connecting rod can be located outside the groove; the locking block is arranged in the groove near the inserting hole of the pulp cavity file, and is connected with the groove The hand-held handle is movably connected, can move between a locking position and a relaxing position driven by the connecting rod, and can be fixed at the locking position.

In the handle of the detachable and washable pulp cavity file, the handle is detachable and connected with the handle through a pivot, the handle is connected with one end of the connecting rod through a second pivot, the other end of the connecting rod is connected with the locking block through a fourth pivot, and the locking block is connected with the handle through a third pivot.

In the handle of the easy to remove and wash pulp cavity file, a U-shaped groove is arranged above the middle part of the handle, and the pivot is detachable and embedded in the U-shaped groove.

The easy to remove and wash pulp cavity file handle also includes a limit block, the limit block is detachable and connected to the handheld handle, when the handle is in the connection state, the limit block butts against the pivot, and fixes the pivot in the U-shaped groove, so as to limit the handle in the connection state.

In the handle of the detachable and washable pulp cavity file, the limit block comprises a base, a spring arranged on the base and a limit rod connected to the base and on both sides of the spring, the lower part of the middle part of the handle is provided with a limit block placement slot, the base is located in the limit block placement slot when the handle is in the connection state, and the spring butts against the The hand-held handle, the limit rod butts against the pivot, and fixes the pivot in the U-shaped groove.

The utility model adopts a detachable and washable pulp cavity file handle, the handle of which is detachable and connected to the hand handle. In the connection state, it can move relative to the hand handle, and drive the pulp cavity file locking component set in the groove to lock and place the pulp cavity file in the pulp cavity file insertion hole. In the disassembly state of the handle, the part of the pulp cavity file locking component can be placed outside the groove, The utility model has the advantages of simple structure, low production and application cost, and simple use and disassembly method.

In order to be able to understand the technical content of the utility model more clearly, the following embodiments are particularly described.

In one embodiment, the easy to remove and wash pulp cavity file handle comprises a hand handle 1, a hand handle 2 and a pulp cavity file locking component. The front end of the handlebar 1 is provided with a pith cavity file insertion hole, and a groove is arranged along the length direction to connect the pith cavity file insertion hole, and the back end is provided with a percussion end 10; the handlebar 2 is detachable connected with the handlebar 1, and can move relative to the handlebar 1 in the connection state; the pith cavity file locking component is connected with the handlebar 2, and the handlebar 2 is in the connection state In the state, the locking assembly of the pulp cavity file is arranged in the groove, and can move under the drive of the handle and lock the pulp cavity file which is placed in the inserting hole of the pulp cavity file; in the state of dismantling the handle 2, the part of the locking assembly of the pulp cavity file can be located outside the groove.

In a more preferred embodiment, the locking assembly of the pulp cavity file comprises a connecting rod 3 and a locking block 4. One end of the connecting rod 3 is connected with the handlebar 2. When the handlebar 2 is in the connection state, the connecting rod 3 is arranged in the groove, and can move under the driving of the handlebar 2. When the handlebar 2 is in the disassembly state, the connecting rod 3 can be located outside the groove; the locking block 4 is arranged in the groove near the position where the pulp cavity file is inserted into the hole, and The handheld handle 1 is movably connected, can move between the locking position as shown in Fig. 1 and the loosening position as shown in Fig. 2 under the drive of the connecting rod 3, and can be fixed at the locking position.

Wherein, the handle 2 is detachably connected to the handle 1 through a pivot 6, the handle 2 is connected to one end of the connecting rod 3 through a second pivot 7, the other end of the connecting rod 3 is connected to the locking block 4 through a fourth pivot 9, and the locking block 4 is connected to the handle 1 through a third pivot 8.

In a further preferred embodiment, the middle part of the handle 1 is provided with a U-shaped groove, and the pivot 7 is detachable and embedded in the U-shaped groove.

In a further preferred embodiment, the easy to remove and wash pulp cavity file handle also includes a limit block 5 as shown in Fig. 3. The limit block 5 is detachable and connected to the handle 1. When the handle 2 is in the connection state, the limit block butts against the pivot, and fixes the pivot in the U-shaped groove, so as to limit the handle 2 to the connection state.

In a more preferred embodiment, the limit block 5 includes a base 11, springs 12 and 13 arranged on the base 11, and limit rods 14 and 15 connected to the base 11 and located on both sides of the springs 12 and 13 respectively. The lower part of the middle part of the handle 1 is provided with a limit block placement slot. When the handle 2 is in the connection state, the base 11 is located in the limit block placement slot The springs 12 and 13 are connected with the handle 1, and the limit rods 14 and 15 are connected with the pivot 7, and the pivot 7 is fixed in the U-shaped groove.

In practical application, the utility model provides a pulp cavity file handle with a handlebar limit device, which can be easily disassembled, cleaned and disinfected thoroughly, in view of the shortcomings in the prior art. The utility model comprises a handle, a handle, a connecting rod, a clamping block and a handle limiting block.

The handle of the pulp cavity file of the utility model comprises a hand handle 1, the back end of the hand handle 1 is provided with a knock end 10, the front end is provided with a pulp cavity file insertion hole, and the middle part is provided with a locking mechanism movement cavity. The front end of the moving cavity is provided with a third pivot 8, both sides of the rear end of the moving cavity are provided with a U-shaped groove, and the bottom end and both sides of the moving cavity are provided with a hand handle limit block moving groove. The locking block 4 is triangular, which is located at the front end of the movement cavity of the handle 1 and is pivotally connected with the handle 1 through the third pivot 8; the connecting rod 3 is located in the movement cavity of the handle 1, the two ends of the connecting rod are provided with pivot holes, the front end is pivotally connected with the locking block 4 through the fourth pivot 9, the rear end is pivotally connected with the handle 2 through the second pivot 7, and one end of the handle is provided with two pivots, except for the second pivot Besides the pivot 7, the utility model is pivotally connected with the U-shaped groove at the back end of the handle moving cavity through a pivot. The handlebar limit block 5 is installed at the bottom end of the rear end of the mobile cavity of the handlebar, and can slide up and down in the mobile cavity of the connecting rod 1 through the spring structure.

When the locking mechanism is in a relaxed state, pull down the limit block 5 of the handle to make the limit bars 14 and 15 on both sides exit from the U-shaped groove in the middle of the handle 1. At this time, pull up the handle 2. The locking mechanism (including the handle 2, the first pivot 6, the second pivot 7, the connecting rod 3, the fourth pivot 9 and the locking block 4) will pull out from the movement cavity of the handle 1 around the third pivot 8, which can file the inner cavity and the The locking mechanism is thoroughly cleaned and disinfected to improve the safety of the operation.

The utility model has the advantages of novel structure design, convenient disassembly, pulling out the internal locking mechanism from the internal cavity of the handle of the pulp cavity file, thorough cleaning and disinfection, and improving the safety of the operation.

The utility model adopts a detachable and washable pulp cavity file handle, the handle of which is detachable and connected to the hand handle. In the connection state, it can move relative to the hand handle, and drive the pulp cavity file locking component set in the groove to lock and place the pulp cavity file in the pulp cavity file insertion hole. In the disassembly state of the handle, the part of the pulp cavity file locking component can be placed outside the groove, The utility model has the advantages of simple structure, low production and application cost, and simple use and disassembly method.