CN215839417U - Reduction forceps for rear ankle fracture - Google Patents

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a rear ankle fracture reduction forceps which comprises two jaw arms which are hinged with each other and marked as a first jaw arm and a second jaw arm, wherein the tail end of the first jaw arm is provided with a reduction tooth, the tail end of the second jaw arm is provided with two reduction teeth, the three reduction teeth are oppositely arranged and are bent inwards, the first jaw arm and the second jaw arm are provided with long holes at the hinged positions, auxiliary locking bolts are arranged in the two long holes, the other ends of the first jaw arm and the second jaw arm are provided with handles, and a locking tooth mouth of the first jaw arm and a locking tooth mouth of the second jaw arm can be meshed with each other. The utility model provides a pair of rear ankle fracture reduction forceps which has the functions of reducing and fixing rear ankle fracture, can reduce and temporarily fix the closed or minimally invasive incision in a rear ankle fracture incision reduction operation for an orthopedic doctor, and provides good conditions for further firm fixation.

Description

Reduction forceps for rear ankle fracture

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a pair of rear ankle fracture reduction forceps.

Background

The prior art and the defects are as follows:

in order to reduce iatrogenic damage, relieve pain of patients and improve fracture healing rate and speed and quality in orthopedic operations, closed reduction or minimally invasive reduction is adopted for a plurality of fractures, because the closed reduction does not cut skin and each layer of soft tissue, and the minimally invasive reduction only cuts a small incision, the direct reduction of the fractures is obviously influenced, and doctors are required to improve the quality of the closed reduction of the fractures. In all ankle fractures, the ankle fracture occupies about 14% -44% after combination, and the anatomical replacement of the ankle acupoint and the restoration of the contact area of the tibialis distance joint are key factors for achieving good function of ankle joint injury. The posterior ankle may alter the contact area of the tibialis joint and the biomechanics of the joint if not repositioned sufficiently. Generally, the reduction of superficial fractures is easy, and the closed reduction or the satisfactory position in a minimally invasive incision is difficult to achieve for the ankle fracture in the deep subcutaneous tissue because the fracture has no self-stability after reduction, and the blocking and traction of tissues around the fracture end are influenced by multiple factors. Due to poor stability of fracture ends, the fracture is difficult to maintain good alignment by a simple manual method so as to be beneficial to further internal fixation, the fracture alignment is good when the fracture is reset, and the fracture is displaced again and even fails to be fixed when the fixation is finished. In the clinical operation process, doctors often utilize the method of clamping jaws of the tissue forceps to help stabilize the reset fracture end, but because the tissue forceps teeth are sharp and small, the tissue forceps teeth are easy to penetrate into bone or bend or break when the tissue forceps teeth are twisted to adjust the position of the fracture end, and the small openings of the tissue forceps teeth cannot provide a large fracture adjustment range and may influence the implementation of further internal fixation.

The difficulty and significance for solving the technical problems are as follows:

therefore, based on the problems, the ankle fracture reduction forceps which have the functions of reducing and fixing the ankle fracture in orthopedics clinic and can provide the closed or minimally invasive incision for reduction and temporary fixation in the ankle fracture incision reduction operation for the orthopedic surgeon have important practical significance for providing good conditions for further firm fixation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems in the prior art and provide a pair of rear ankle fracture reduction forceps which has the functions of reducing and fixing rear ankle fracture in orthopedics clinic, can reduce and temporarily fix the fracture when a closed or minimally invasive incision is formed in a rear ankle fracture incision reduction operation for an orthopedics doctor, and provides good conditions for further firm fixation.

The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows:

the ankle fracture reduction forceps comprise two jaw arms which are hinged to each other and marked as a first jaw arm and a second jaw arm, wherein the tail end of the first jaw arm is provided with a reset tooth, the tail end of the second jaw arm is provided with two reset teeth, the reset teeth are oppositely arranged and are bent inwards, the first jaw arm and the second jaw arm are provided with long holes at hinged positions, auxiliary locking bolts are installed in the long holes, the first jaw arm and the second jaw arm are provided with handles at the other ends of the first jaw arm and the second jaw arm, locking tooth openings are formed in the inner sides of the handles, and the locking tooth openings of the first jaw arm and the locking tooth openings of the second jaw arm can be meshed with each other.

The utility model can also adopt the following technical scheme:

in the above-mentioned reduction forceps for posterior ankle fracture, further, the end of the reduction tooth is provided with a guide hole.

In the above-mentioned posterior ankle fracture reduction forceps, further, the distal end of the reduction tooth is spade-shaped.

In the above-mentioned reduction forceps for posterior ankle fracture, further, a sliding groove is provided between the nut of the auxiliary locking bolt and the forceps holder arm.

In conclusion, the utility model has the following advantages and positive effects:

1. the front and back ankle fracture reduction is not provided with special surgical instruments, and is assisted by 1-2 towel forceps, pelvis reduction forceps and other non-special instruments, and only one plane can be assisted for single-dimensional fixation at one time. The reduction forceps is provided with three reduction teeth, and can simultaneously realize the auxiliary fixation of two planes of a transverse shaft and a longitudinal shaft by utilizing a three-point stabilization principle.

2. The present assistant reset towel clamp and pelvis reset clamp have their sharp teeth, clamp handle and rotating shaft in fixed length and opening angle. The jaw arm of the resetting clamp can realize the adjustment of the length (0-10cm) and the angle (0-180 degrees) of the resetting jaw arm (from the auxiliary locking bolt to the resetting tooth part in the jaw arm) according to different bone sizes by virtue of the sliding groove and the auxiliary locking bolt, and the length and the angle can be fixed at any angle in the range.

3. The widened locking tooth opening can realize auxiliary locking of the reset arm when a single reset tong arm is used for fixing the other reset tong arm to finely adjust the length of the longitudinal axis to be 0-4 cm, so that double stabilization is realized, and the reset failure caused by shaking in the operation or loosening of an auxiliary locking bolt is avoided.

4. The reduction tooth is designed to be a slight shovel-shaped head, and can be tightly attached to a joint surface, so that the tip of the needle-shaped reduction forceps is prevented from damaging bones and articular cartilage.

5. The reset tooth is provided with the guide hole, so that a Kirschner wire or a hollow screw guide pin can be arranged and used during resetting, and temporary fixing operation is completed during resetting.

Drawings

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

fig. 4 is a side view of the present invention.

In the figure:

1. the clamp comprises a clamp arm, 2, a handle, 3, a reset tooth, 4, a locking tooth opening, 5, an auxiliary locking bolt, 6, a guide hole, 7 and a sliding groove.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 4.

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

the first embodiment is as follows:

the ankle fracture reduction forceps comprise two jaw arms 1 which are hinged to each other and marked as a first jaw arm and a second jaw arm, wherein the tail end of the first jaw arm is provided with a reset tooth, the tail end of the second jaw arm is provided with two reset teeth 3, the reset teeth 3 are arranged oppositely and are bent inwards, the first jaw arm and the second jaw arm are provided with long holes at hinged positions, auxiliary locking bolts 5 are arranged in the long holes, the first jaw arm and the second jaw arm are provided with handles 2 at the other ends of the first jaw arm and the second jaw arm, locking tooth ports 4 are arranged on the inner sides of the handles, and the locking tooth ports 4 of the first jaw arm and the locking tooth ports 4 of the second jaw arm can be meshed with each other.

In this embodiment, the end of the reset tooth is provided with a guide hole 6.

In this embodiment, the distal end of the reset tooth is spade-shaped.

In this embodiment, a sliding slot 7 is provided between the nut of the auxiliary locking bolt 5 and the jaw arm 1.

The working process is as follows: the fracture end can achieve the functions of restoration and temporary fixation by utilizing the functions of three forceps teeth fixation and crow bar. The technical scheme of the utility model is as follows: be equipped with jaw arm 1, handle 2, tooth 3 resets, locking tooth mouth 4 and supplementary locking bolt 5, when extrudeing two handles 2 in opposite directions, two handles 2 are close to, jaw arm 1 drives tooth 3 centre gripping fracture end and shin bone that resets, prizes the fracture end with tooth 3 that resets and presss from both sides tightly, locking tooth mouth 4 and supplementary locking bolt 5 locking can keep tooth 3 that resets to press from both sides tight state and reach the interim fixed after resetting, can implant interim fixed guide pin or ke shi needle according to the guiding hole 6 in the tooth that resets.

In conclusion, the utility model provides the rear ankle fracture reduction forceps which have the functions of reducing and fixing the rear ankle fracture in orthopedics clinic, can reduce and temporarily fix the fracture in a closed or minimally invasive incision reduction operation for the rear ankle fracture incision of an orthopedics doctor, and provides good conditions for further firm fixation.

The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (4)

1. The ankle fracture reduction forceps are characterized in that: the ankle fracture reduction forceps comprise two jaw arms which are hinged to each other and are marked as a first jaw arm and a second jaw arm, the tail end of the first jaw arm is provided with a reset tooth, the tail end of the second jaw arm is provided with two reset teeth, the reset teeth are oppositely arranged and are bent inwards, the first jaw arm and the second jaw arm are provided with long holes at hinged positions, auxiliary locking bolts are installed in the long holes, the other ends of the first jaw arm and the second jaw arm are provided with handles, the inner sides of the handles are provided with locking tooth openings, and the locking tooth openings of the first jaw arm and the locking tooth openings of the second jaw arm can be meshed with each other.

2. The posterior ankle fracture reduction forceps of claim 1, wherein: the tail end of the reset tooth is provided with a guide hole.

3. The posterior ankle fracture reduction forceps of claim 1, wherein: the tail end of the reset tooth is shovel-shaped.

4. The posterior ankle fracture reduction forceps of claim 1, wherein: and a sliding groove is formed between the nut of the auxiliary locking bolt and the clamp arm.

Images