WO2022011673A1 - Bone holding forceps having steel wire guide - Google Patents

Abstract

Bone holding forceps having a steel wire guide. The bone holding forceps comprise a fixing rod (1) and a movable rod (2). The front end of the fixing rod (1) has a first clamping part (11) having a hook; the front end of the movable rod (2) has a second clamping part (21) facing the first clamping part (11); the first clamping part (11) and the second clamping part (21) are encircled to clamp and fix a thigh bone; a hollow tube (12) where a steel wire may penetrate through is fixed on the back side of the front end of the fixing rod (1). The hollow tube (12) where a steel wire may penetrate through is provided on the back of the front end of the fixing rod (1), and in virtue of the hollow tube (12), a doctor can complete penetrating of the steel wire before the bone holding forceps are taken out, so that two operation steps before (fixing the thigh bone by the bone holding forceps and winding a steel wire rope) can be completed in one step, an operation process is simplified, the operation time is shortened, and the pain of patients is alleviated.

Description

A kind of bone holding forceps with wire guide technical field

The invention relates to a bone holding forceps for fixing a femur, and belongs to the technical field of medical devices.

Background technique

Fractures are one of the most common diseases in orthopedics. In open reduction and fixation of fractures, the two broken ends of the fracture are often clamped with a forceps and other instruments for reduction, and then fixed with internal fixation materials.

In the current operation, wire threading is performed after removing the rongeur, and the process of threading the wire is generally performed manually without auxiliary tools. On the one hand, the fracture reduction effect may be lost during this operation, requiring re-reduction; on the other hand, due to the lack of auxiliary tools, the insertion of the wire is not fast enough, which prolongs the operation time and brings pain to the patient.

technical problem

The purpose of the present invention is to overcome the above-mentioned defects in the background technology, and to provide a bone holding forceps guided by a wire, which is beneficial to the threading of the wire rope during the operation and shortens the operation time.

technical solutions

In order to achieve the above purpose, the present invention provides the following technical solution: a rongeur guided by a wire, characterized in that the rongeur includes a fixed rod and a movable rod, and the front end of the fixed rod has a hook-shaped a first clamping part, the front end of the movable rod has a second clamping part facing the first clamping part, the first clamping part and the second clamping part are in a closed state for clamping the femur Hold and fix; the back side of the front end of the fixing rod is fixed with a hollow tube for threading the steel wire.

beneficial effect

In the present invention, a hollow tube for threading a steel wire is arranged on the back of the front end of the fixing rod. With the help of the hollow tube, the doctor can thread the steel wire before taking out the bone holding forceps, and the previous two operation steps ( The femur is fixed with the femur and the wire rope is wound around) and completed in one step, which simplifies the operation process, shortens the operation time and reduces the pain of the patient.

Description of drawings

Figure 1 is a schematic diagram of the structure of the inner casing.

The symbols in the figure are as follows: 1-fixed rod; 11-first clamping part; 12-hollow tube; 2-movable rod; 21-second clamping part; 22-slider; 3-screw; 31-spin handle.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , a wire-guided bone holding forceps according to the present embodiment includes a fixed rod 1 and a movable rod 2 slidably arranged on the inner side of the fixed rod 1 . In this embodiment, the fixed rod 1 is provided with a chute, and the movable rod 2 is provided with a slider matched with the chute. A screw 3 is threadedly connected to the tail of the fixed rod 1 , and the head of the screw 3 is rotatably connected to the tail of the movable rod 2 . A handle 31 is fixed at the tail of the screw 3 . The screw 3 is rotated by the handle 31 to make the movable rod 2 move forward or retreat.

The front end of the fixing rod 2 has a hook-shaped first clamping portion 11 . The front end of the movable rod 2 has a second clamping portion 21 facing the first clamping portion 11 . The first clamping part 11 and the second clamping part 12 are in a closed state for clamping and fixing the femur. As shown in FIG. 1 , the first clamping portion 11 and the second clamping portion 21 have serrated structures, which are intended to prevent slippage and to clamp the femur more stably.

The back side of the front end of the fixing rod 2 is fixed with a hollow tube 12 for passing the wire. The hollow tube 12 is arc-shaped, and fits with the back of the hook head of the fixing rod 2, which is conducive to the threading of the steel wire. In this example, the hole diameter of the hollow tube 12 is 3 mm.

During the operation, after the femur is reduced and fixed with bone tongs, the steel wire is passed through the hollow tube 12 . Hold the head end of the steel wire, then take out the bone holding forceps, the tail end of the steel wire slides out of the hollow tube, and then use the wire forceps to tighten the two ends of the steel wire together to complete the binding and fixation of the femur.

As a preferred solution, the side surface of the hollow tube 12 close to the head of the fixing rod 1 is provided with a notch through which the steel wire can slide out. In this way, the steel wire can be slipped out from the hollow tube 12 when the rongeur is fixed, and the femur is now bundled and fixed with the wire, and then the rongeur is removed to prevent the loss of the reduction effect of the fracture.

In addition to the above-described embodiments, the present invention may also have other embodiments. All technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (6)

A bone holding rongeur guided by a wire, characterized in that the bone holding forceps comprises: a fixed rod (1) and a movable rod (2), and the front end of the fixed rod (2) has a hook-shaped first A clamping part (11), the front end of the movable rod (2) has a second clamping part (21) facing the first clamping part (11), the first clamping part (11) and the first clamping part (11) The two clamping parts (21) are in a closed state and are used for clamping and fixing the femur; a hollow tube (12) for threading a steel wire is fixed on the back side of the front end of the fixing rod (2). The bone holding forceps with wire guide according to claim 1, characterized in that: the movable rod (2) is slidably arranged on the inner side of the fixed rod (1). The bone holding forceps with wire guide according to claim 2, characterized in that: the fixed rod (1) is provided with a chute, and the movable rod (2) is provided with a slider (22) matched with the chute. The bone holding forceps with wire guide according to claim 3, characterized in that: the tail of the fixed rod (1) is threadedly connected with a screw (3), and the head of the screw (3) is connected to the movable rod (2). ) at the end of the rotating connection. The bone holding forceps with wire guide according to claim 1, characterized in that: a rotating handle (31) is fixed at the tail of the screw rod (3). The bone holding forceps guided by a wire according to claim 1, characterized in that: the side surface of the hollow tube (12) close to the head of the fixing rod (1) is provided with a notch for the wire to slide out.