CN204562491U - Radius far-end fracture traction apparatus - Google Patents

Abstract

The utility model discloses a tractor for distal radius fracture, which comprises a first traction rod and a second traction rod. The first traction rod is provided with a lead screw and an open slot, and the lead screw penetrates into the open slot and The two ends are rotationally connected with the opening groove wall, and a guide rod parallel to the lead screw is arranged in the opening groove, and a finger rest nut is arranged on the lead screw, and the guide rod passes through the finger rest nut and is slidably connected with the finger rest nut, A telescopic rod is arranged on the finger nut, and a fixed frame is arranged on the telescopic rod, and a finger pincer tractor is arranged on the fixed frame, and a lead screw and a chute are arranged on the second pulling rod. The lead screw penetrates into the chute and both ends are rotatably connected with the chute wall. A slider threadedly connected with the lead screw is arranged in the chute, and a hoop is arranged on the slider, and the hoop includes straight ends at both ends. 1. There are two half hoops in the middle of an arc, one end of the half hoop is hinged with the slider, and the other end is provided with a bolt pair. When used, it will not cause trauma to the patient.

Description

Distal radius fracture retractor

technical field

The utility model relates to the field of medical instruments, in particular to a tractor for distal radius fractures.

Background technique

As we all know, the distal radius fracture distractor is a kind of medical equipment, and is widely used in the use of fractured patients. During the use of the existing retractor, it needs to be supported and fixed by the screws embedded in the radius and the metacarpal bone, which not only increases the pain of the patient, but also causes trauma to the patient, and there is also the possibility of the screw track being infected.

Utility model content

In view of this, the purpose of this utility model is to provide a distractor for distal radius fracture, which can improve its fixing support structure, which can not only ensure the fixing effect, but also not cause trauma to the patient.

The utility model solves the above-mentioned problems through the following technical means: a tractor for distal radius fractures, comprising a first traction rod and a second traction rod connected by a connecting rod, the two ends of the connecting rod are respectively connected with the first traction rod and the second The two drawbars are hinged with balls. The first drawbar is provided with a lead screw and an open slot. Parallel guide rods, the lead screw is provided with a finger nut, the guide rod passes through the finger nut and is slidably connected with the finger nut, the finger nut is provided with a telescopic rod, and the telescopic rod is provided with a fixed The fixed frame is provided with a finger pincer tractor, and a screw and a chute are set on the second draw bar. The screw penetrates into the chute and its two ends are rotatably connected with the chute wall, and the chute A slider threaded with the lead screw is provided inside, and a hoop is arranged on the slider. The hoop includes two half hoops with straight ends and an arc in the middle. One end of the half hoop is connected to the slider. Hinged, the other end is provided with a bolt pair.

Further, an arc-shaped airbag is provided inside the half hoop.

Further, the fixed frame has a horizontal arc structure, and five finger clamp retractors are arranged on the fixed frame, and the finger clamp retractors are slidingly connected with the fixed frame, and the finger clamp retractors and the fixed frame are connected through a lock. Tighten the screws to lock the connection.

Beneficial effects of the utility model: the distal radius fracture tractor of the utility model includes a first traction rod and a second traction rod, the first traction rod is provided with a screw and an opening slot, and the screw penetrates into the In the open groove and both ends are connected with the wall of the open groove in rotation, a guide rod parallel to the lead screw is arranged in the open groove, a finger rest nut is arranged on the lead screw, the guide rod passes through the finger rest nut and connects with the finger rest The nuts are slidingly connected, the said finger rest nut is provided with a telescopic rod, the said telescopic rod is provided with a fixing frame, the said fixed frame is provided with a finger clamp tractor, and the said second traction rod is provided with a lead screw and a sliding rod. The lead screw penetrates into the chute and the two ends are connected to the chute wall in rotation. A slider threadedly connected with the lead screw is arranged in the chute, and a hoop is arranged on the slider, and the hoop includes Two half hoops with straight ends and an arc in the middle, one end of the half hoop is hinged with the slider, and the other end is provided with a bolt pair. The distal radius fracture retractor with this structure improves its fixation and support structure, not only ensures the fixation effect, but also avoids trauma to the patient during use.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is A-A schematic diagram;

Figure 3 is a schematic diagram of B-B.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings, as shown in Figures 1-3: a distractor for distal radius fractures, including a first drawbar 2 and a second drawbar 3 connected by a connecting rod 1, the The two ends of the connecting rod are respectively hinged with the first drawbar and the second drawbar ball. The first drawbar is provided with a lead screw 4 and an open slot 5. The wall is rotationally connected, and a guide rod 6 juxtaposed with the lead screw is arranged in the open groove, and a finger nut 7 is arranged on the lead screw, and the guide rod passes through the finger nut and is slidably connected with the finger nut, so that the screw The rod, the guide rod and the finger support nut constitute the screw transmission structure, and the rotation of the lead screw can make the finger support nut move along the lead screw. The finger support nut is provided with a telescopic rod 8, and the telescopic rod includes mutual sockets. The inner rod body and the outer rod body, the telescopic rod is provided with a fixed frame 9, the fixed frame is a horizontal arc structure, and five finger clamping tractors 10 are arranged on the fixed frame, and the finger clamping tractors and the The fixed frame is slidingly connected, and the finger clamps the tractor and the fixed frame to connect and lock through the locking screw 16. The second drawing rod is provided with a screw and a chute 11, and the screw is inserted into the chute and the two The end is connected to the chute wall in rotation, and a slider 12 threadedly connected with the lead screw is arranged in the chute, and a hoop is arranged on the slider, and the hoop includes two straight ends and an arc in the middle. Half hoop 13, one end of the half hoop is hinged with the slider, the other end is provided with a bolt pair 14, the ball hinge is also provided with locking screws, and the inner rod body and outer rod body of the telescopic rod are connected by locking screws locking.

The specific process of using the tractor for distal radius fracture is: turn the lead screw on the second traction rod to move the slider along the length direction of the chute, and adjust the position of the slider in the chute to adapt to different forearm lengths of different patients Then clamp the patient’s forearm between the two and a half hoops, and connect the other ends of the two and a half hoops together through a pair of bolts, thus completing the support and fixation of one end of the retractor; The retractor is fixed on the five fingers of the patient. Adjust the position of the finger-clamp retractor on the ring holder, and lock and fix it after reaching the ideal position. In this way, the support and fixation of the other end of the retractor is completed.

Slowly rotate the lead screw on the first traction rod, so that the fixation frame moves slowly to the distal end along the lead screw, so as to retract the broken end of the fracture, and then adjust the wrist joint to a corresponding position and fix it.

The distal radius fracture retractor with this structure improves its fixation and support structure, not only ensures the fixation effect, but also avoids trauma to the patient during use.

As a further improvement of the above-mentioned technical solution, an arc-shaped airbag 15 is arranged inside the half hoop, and the airbag communicates with the inflatable structure. When the retractor is supported and fixed, the patient's forearm is in contact with the soft airbag, which can avoid skin soft tissue damage, and at the same time, the tightness of the clamping can be adjusted by adjusting the amount of air in the airbag, so that the clamping and fixing effect is better.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (3)

1. A retractor for distal radius fractures, comprising a first traction rod (2) and a second traction rod (3) connected by a connecting rod (1), the two ends of the connecting rod are respectively connected to the first traction rod and the second Two traction rods are ball hinged, characterized in that: the first traction rod is provided with a lead screw (4) and an open slot (5), the lead screw penetrates into the open slot and both ends are rotatably connected with the wall of the open slot, A guide rod (6) parallel to the lead screw is arranged in the opening groove, and a finger nut (7) is arranged on the lead screw. The guide rod passes through the finger nut and is slidably connected with the finger nut. A telescopic rod (8) is arranged on the supporting nut, and a fixed frame (9) is arranged on the telescopic rod, and a finger clamp tractor (10) is arranged on the fixed frame, and a lead screw is arranged on the second pulling rod and the chute (11), the lead screw penetrates into the chute and both ends are rotationally connected with the chute wall, the chute is provided with a slider (12) threadedly connected with the lead screw, and the slider is provided with A hoop, the hoop includes two half hoops (13) with straight ends and an arc in the middle, one end of the half hoop is hinged to the slider, and the other end is provided with a bolt pair (14). 2. The distractor for distal radius fracture according to claim 1, characterized in that: an arc-shaped airbag (15) is arranged inside the half hoop. 3. The distal radius fracture retractor according to claim 2, characterized in that: the fixed frame is in a horizontal arc structure, five fingers are arranged on the fixed frame to press the retractor, and the fingers are pressed to press the retractor. It is slidably connected with the fixed frame, and the finger clamps the retractor and the fixed frame for connection and locking through locking screws (16).