Marking nail inserter for joint replacement surgery

Abstract

The utility model discloses a marking nail implanter used in joint replacement surgery. Before and during the process of driving the marking nail into the femur or tibia, the marking nail will not fall off, and the doctor does not need to hold the marking nail with his hands. After the marking nail is driven in, the marking nail can be quickly unlocked. During the process of driving the marking nail into the femur or tibia, the doctor can more easily grasp the handle, which saves the doctor more effort.

Description

Technical Field

[0001] The utility model relates to the field of electromechanical equipment, in particular to a marking nail implanter used in joint replacement surgery. Background Art

[0002] Currently in the medical field, when using robot-assisted equipment for joint replacement surgery, it is necessary to use a marker pin to fix it to the patient's femur or tibia to complete the positioning and verification of the femur and tibia. However, ordinary wrenches cannot lock the marker pins, and the doctor can only hold the marker pin with one hand and hold the wrench with the other hand to drive the marker pin in. This method is time-consuming and labor-intensive, and sometimes the marker pin may fall into the patient's body, which poses a great risk.

[0003] In summary, a marker nail implanter for joint replacement surgery is needed to address the deficiencies in the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a marking nail implanter for joint replacement surgery, aiming to solve the above problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a marking nail implanter for joint replacement surgery, comprising a handle, a clamping hexagonal rod is arranged on the handle, the clamping hexagonal rod is fixedly connected to the handle, a movable sleeve is sleeved on the outside of the clamping hexagonal rod, a return spring is arranged between the movable sleeve and the clamping hexagonal rod, the two ends of the return spring are respectively fitted with the handle and the movable sleeve, a marking nail gripper is arranged at the free end of the clamping hexagonal rod, and the marking nail gripper is movably connected to the clamping hexagonal rod.

[0006] Optionally, a front clamping point and a rear clamping point are provided on the marking nail gripper, wherein the front clamping point is provided at the middle portion of the marking nail gripper, and the rear clamping point is provided at the butt end between the marking nail gripper and the clamping hexagonal rod.

[0007] Optionally, a limit clamping point is set on the movable sleeve at the end that cooperates with the marking nail gripper, and the limit clamping point corresponds to the front clamping point and the rear clamping point.

[0008] Optionally, the handle comprises an inner core rod, a handle sleeve is sleeved on the outer side of the inner core rod, and a handle pin is arranged between the handle sleeve and the inner core rod.

[0009] Optionally, a connecting pin is provided between the inner core rod and the clamping hexagonal rod, and the inner core rod is fixedly connected to the clamping hexagonal rod via the connecting pin.

[0010] Optionally, a movable pin is provided between the marking nail gripper and the clamping hexagonal rod, and the marking nail gripper is movably connected to the clamping hexagonal rod via the movable pin.

[0011] Optionally, a knocking cap is provided on the handle, and the knocking cap is threadably connected to the handle.

[0012] Beneficial effects of the utility model:

[0013] 1. In the utility model, before and during the process of driving the marking nail into the femur or tibia, the marking nail will not fall off, and the doctor does not need to hold the marking nail by hand;

[0014] 2. In the utility model, after the marking nail is driven in, the marking nail can be quickly unlocked. During the process of driving the marking nail into the femur or tibia, the doctor can more easily grasp the handle, which saves the doctor more effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of a cross-sectional structure.

[0016] Figure 2 for Figure 1 A schematic diagram of an enlarged structure at A in the middle.

[0017] In the figure: 1. Handle; 2. Clamping hexagonal rod; 3. Movable sleeve; 4. Return spring; 5. Marking nail gripper; 6. Movable pin; 7. Handle pin; 8. Connecting pin; 9. Knocking cap; 11. Inner core rod; 12. Handle sleeve; 31. Limiting point; 51. Rear point; 52. Front point. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] In conjunction with the instruction manual Figure 1 -Attached Figure 2 , explain this technical solution

[0020] like Figure 1 As shown, a marking nail implanter used in joint replacement surgery includes a handle 1, a clamping hexagonal rod 2 is arranged on the handle 1, the clamping hexagonal rod 2 is fixedly connected to the handle 1, a movable sleeve 3 is sleeved on the outside of the clamping hexagonal rod 2, a return spring 4 is arranged between the movable sleeve 3 and the clamping hexagonal rod 2, the two ends of the return spring 4 are respectively fitted with the handle 1 and the movable sleeve 3, a marking nail gripper 5 is arranged at the free end of the clamping hexagonal rod 2, and the marking nail gripper 5 is movably connected to the clamping hexagonal rod 2.

[0021] A front card point 52 and a rear card point 51 are set on the marking nail gripper 5, the front card point 52 is set in the middle part of the marking nail gripper 5, and the rear card point 51 is set at the docking end of the marking nail gripper 5 and the clamping hexagonal rod 2. A limit card point 31 is set on the movable sleeve 3 at the matching end with the marking nail gripper 5, and the limit card point 31 corresponds to the front card point 52 and the rear card point 51. The handle 1 includes an inner core rod 11, a handle sleeve 12 is sleeved on the outside of the inner core rod 11, a handle pin 7 is set between the handle sleeve 12 and the inner core rod 11, a connecting pin 8 is set between the inner core rod 11 and the clamping hexagonal rod 2, and the inner core rod 11 is fixedly connected to the clamping hexagonal rod 2 through the connecting pin 8, a movable pin 6 is set between the marking nail gripper 5 and the clamping hexagonal rod 2, and the marking nail gripper 5 is movably connected to the clamping hexagonal rod 2 through the movable pin 6, and a knocking cap 9 is set on the handle 1, and the knocking cap 9 is threadedly connected to the handle 1.

[0022] When the return spring 4 is in a free state, the limit clamping point 31 presses against the front clamping point 52, and the marking nail gripper 5 firmly grasps the marking nail under the hinged action of the movable pin 6; when the movable sleeve 3 is pulled back, the limit clamping point 31 presses against the rear clamping point 51, and the marking nail gripper 5 releases the marking nail under the hinged action of the movable pin 6, so that the marking nail automatically detaches.

[0023] Before and during the process of driving the marking nail into the femur or tibia, the marking nail will not fall off, and the doctor does not need to hold the marking nail with his hand. After the marking nail is driven in, the marking nail can be quickly unlocked. During the process of driving the marking nail into the femur or tibia, the doctor can more easily grasp the handle, which saves the doctor more effort.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A marker nail implanter for joint replacement surgery, characterized in that: It includes a handle, on which a clamping hexagonal rod is arranged, the clamping hexagonal rod is fixedly connected to the handle, a movable sleeve is sleeved on the outside of the clamping hexagonal rod, a return spring is arranged between the movable sleeve and the clamping hexagonal rod, two ends of the return spring are respectively fitted with the handle and the movable sleeve, a marking nail gripper is arranged at the free end of the clamping hexagonal rod, and the marking nail gripper is movably connected to the clamping hexagonal rod.

2. The marker pin implanter for joint replacement surgery according to claim 1, characterized in that: The marking nail gripper is provided with a front clamping point and a rear clamping point, wherein the front clamping point is provided at the middle part of the marking nail gripper, and the rear clamping point is provided at the butt end of the marking nail gripper and the clamping hexagonal rod.

3. The marker pin implanter for joint replacement surgery according to claim 2, characterized in that: A limit clamping point is arranged on the movable sleeve at the end cooperating with the marking nail gripper, and the limit clamping point corresponds to the front clamping point and the rear clamping point.

4. The marker pin implanter for joint replacement surgery according to claim 1, characterized in that: The handle comprises an inner core rod, a handle sleeve is sleeved outside the inner core rod, and a handle pin is arranged between the handle sleeve and the inner core rod.

5. The marker pin implanter for joint replacement surgery according to claim 4, characterized in that: A connecting pin is arranged between the inner core rod and the clamping hexagonal rod, and the inner core rod is fixedly connected to the clamping hexagonal rod through the connecting pin.

6. The marker pin implanter for joint replacement surgery according to any one of claims 1 to 5, characterized in that: A movable pin is arranged between the marking nail gripper and the clamping hexagonal rod, and the marking nail gripper is movably connected to the clamping hexagonal rod through the movable pin.

7. The marker pin implanter for joint replacement surgery according to any one of claims 1 to 5, characterized in that: A knocking cap is arranged on the handle, and the knocking cap is threadedly connected to the handle.

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