Slide rail type traction headstock
The utility model belongs to the technical field of medical instrument, concretely relates to a slide rail formula traction headstock that is arranged in extensive region dentata dislocation art to carry out skull traction.
The dislocation of the atlantoaxial is a serious disease, and the atlantoaxial dislocation compresses medulla oblongata to cause related symptoms such as occipital cervical pain, limb movement disorder, respiratory dysfunction and the like. The purpose of the operation treatment is to reduce pressure, relieve the oppression of medulla oblongata and spinal cord and restore the stability of the skull-neck junction area.
Currently, for the treatment of atlantoaxial dislocation, posterior fixation fusion is often adopted in clinic, which aims to restore the normal structure and stability of the cranioconjunctival junction area while reducing pressure and relieving myelencephalon and spinal cord compression. In the operation process of a patient with difficult renaturation atlantoaxial dislocation, on one hand, continuous cephalic traction is carried out on the skull so as to be beneficial to resetting of the atlantoaxial joint, and meanwhile, the anatomical mark is favorably revealed so as to relatively reduce the operation difficulty, and on the other hand, the head is fixed in the operation process so as to maintain the stability of the atlantoaxial bone and prevent the spinal cord from being damaged in the operation.
However, there is no traction headgear available in the prior art that can meet both skull traction and head fixation requirements in atlantoaxial dislocation.
At present, skull traction in an operation for a patient with difficult renaturation atlantoaxial dislocation generally adopts a double-nail skull traction bow to traction the skull, an S hook connected with a lasso is arranged on the traction bow, and the lasso is connected with a heavy hammer through a fixed pulley fixed at the far end of the head side to implement head-direction traction on the skull. A head support fixed with bagged liquid is arranged under the head to support the forehead of the patient and play a role in supporting the skull.
Disadvantages of the prior art
1. The double-nail skull traction bow can only carry out cephalic traction and cannot fix the skull in the vertical direction, and the skull can only be supported but cannot be prevented from moving in the vertical direction by adopting the cooperation of the head support at present.
2. In the existing skull traction technology, the skull of a patient can rotate left and right during operation, but the skull rotation can influence the accuracy of reduction when posterior fixation is carried out.
3. In the prior art of using the head support to lift the skull, the skull can move towards the traction direction due to continuous head traction, so that the head support is easy to press the eyes, and the eyeballs can be pressed to cause blindness.
For example, chinese patent publication CN107811689A discloses a four-nail skull traction device, but because the traction device uses four arms and a ring-shaped fixing ring surrounding the skull, the skull of the patient still cannot be fixed, can still rotate left and right, or can not realize head fixation while the skull is being pulled.
For example, chinese patent publication CN203943860U discloses a skull traction frame, in which skull external plates capable of matching the lower jaw and temporal parts of both ears of the skull of a patient are used instead of skull nails, and adjustment of the cervical vertebra flexion and extension degrees is satisfied by the change of the traction force angle. However, the skull outer plate cannot limit the skull of the patient to rotate left and right during the operation, and still cannot realize the head fixation while the skull is pulled.
Therefore, in order to smoothly perform the atlantoaxial dislocation posterior fixation fusion and avoid the risks possibly caused to the patient during the operation, a traction head frame capable of simultaneously realizing skull traction and head fixation during the atlantoaxial dislocation is urgently needed.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the present invention is to provide a sliding rail type traction head frame to solve the problem of simultaneously realizing skull traction and head fixation in atlantoaxial dislocation surgery.
For solving the technical problem, the utility model provides a headstock is pull to slide rail formula, pull bow, slider, linear slide rail and Y type grab arm including four nails, wherein four nails are pull the bow and are included four pieces of skull nails, bow arm and two rocking arms, and when using, the rocking arm is fixed respectively in the skull both sides through four pieces of skull nails of embedding in the skull, and the bow arm is fixed on two rocking arms, four nails are pull the both sides bow arm of bow and are connected the slider respectively, the slider imbeds linear slide rail separately and make four nails pull the bow and can slide along linear slide rail, Y type grab arm upper end is fixed respectively on two linear slide rails.
In a preferred embodiment, the rocker arm is fixed on the bow arm of the four-nail traction bow through a rocker arm fixing knob.
In a preferred embodiment, the top end of the four-pin traction bow is provided with a connecting ring for connecting a traction lasso.
In a preferred embodiment, the lower end of the Y-shaped gripper arm is connected to a base or a connector. The base can be
A base or connector of the headgear; the base or connector may be fixed to an operating table or the ground. The Y-shaped grasping arm can be directly connected with the base or the connector through the ratchet.
In a preferred embodiment, the traction head frame further comprises a pulley bracket, a traction lasso with one end connected to the four-nail traction bow, and a weight, wherein the other end of the traction lasso is connected to the weight through the pulley bracket fixed at the head side far end to provide a constant traction force in the horizontal direction.
In the use of the utility model discloses an in-process of operation of headstock is drawn to slide rail formula, the four nails that have the rocking arm are drawn the bow and are cooperateed with the slide rail of fixing on Y type grab arm, can keep the stability of patient's skull when making patient's skull be fixed in the required position of operation, ensure that patient's skull can not produce displacement and the ascending rotation in circumference in the vertical direction. The four-nail traction bow can horizontally slide on the slide rail through the connected slide block, and continuous horizontal traction force in the operation is ensured under the traction of the traction device. The position of the slide rail type traction head frame in the vertical direction can be accurately adjusted according to the height of an operating table through the Y-shaped grabbing arm, and the direction of cranium traction force in the operation is kept unchanged.
The utility model discloses a rail-sliding type pulls the headstock and has improved the stability that extensive region dentata dislocated intraoperative skull pulls, and the patient keeps the head all the time to continuously pull in the operation process, makes the head can't move to other directions when pulling to can not lead to the head to rock because of the operation such as the interior fixture of implanting in the art, also avoid the risk of eye pressurized simultaneously. Therefore, the resetting effect of the atlantoaxial is ensured during the operation, and the difficulty of the nail placing fusion in the posterior operation and the risks of blindness and the like caused by the compression of the eyeball are reduced.
The utility model discloses a headstock is pull to slide rail formula has excellent stability and accuracy nature, can ensure to carry out the skull with best angle and strength and pull in the art, has high stability simultaneously, ensures that the safety of performing the operation goes on. The traction head frame is simple in structure, convenient to manufacture, strong in compatibility and exact in effect, and can remarkably improve the traction reduction success rate and longitudinal stability, so that the treatment effect is ensured.
In order that the manner in which the disclosure may be more readily understood and readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings,
fig. 1 is a schematic top view of an embodiment of a slide rail traction head frame of the present invention; and
fig. 2 is a schematic side view of an embodiment of a rail traction head of the present invention.
Description of the reference numerals
Firstly, a rocker arm; fixing a knob by a rocker arm; thirdly, a sliding block; fourthly, a linear slide rail; fifthly, bending the arms; sixthly-shaped grabbing arms; seventhly, ratch.
The utility model provides a can satisfy the skull simultaneously in atlantoaxial dislocation art and pull the headstock to the slide rail formula that pulls and the head is fixed to ensure to implement the fixed fusion art of atlantoaxial dislocation back way smoothly, avoid the risk that probably leads to the fact the patient in the art.
Fig. 1 is a schematic top view of an embodiment of a rail traction head of the present invention. Fig. 2 is a schematic side view of an embodiment of a rail traction head of the present invention.
The slide rail type traction head frame comprises four skull nails, a bow arm, a rocker arm 1, a slide block 3, a linear slide rail 4 and a Y-shaped grabbing arm 6. During the use, rocking arm 1 is fixed respectively in skull both sides through four skull nails of embedding in the skull, and the bow 5 of fixing on rocking arm 1 connects slider 3 respectively, and slider 3 imbeds respectively in linear slide 4 makes bow 5 can slide along linear slide 4, and two grab arms of Y type grab arm 6 upper end are fixed respectively on two linear slide 4.
The rocker arm 1 is fixed on a bow arm 5 of the traction bow through a rocker arm fixing knob 2. The top end of the bow arm 5 is provided with a traction lasso connecting ring for connecting a traction lasso.
The lower end of the Y-shaped gripping arm
6 is connected to, for example
The base or the connector of the headstock can be fixed on an operating table or the ground, and the Y-shaped grabbing arm
6 can be directly connected with the base or the connector through the ratchet 7, so that the height of the traction headstock can be adjusted up and down according to the height of the operating table.
The rail traction head frame may further comprise a traction device, which may comprise, for example, a pulley bracket, a traction lasso with one end connected to a connection ring at the top end of the traction bow arm 5, and a weight, and the other end of the traction lasso is connected to the weight via the pulley bracket fixed at the distal end of the head side to provide a constant traction force in the horizontal direction.
As shown in fig. 2, in practical operation, after anesthesia of a patient is completed, four skull nails at two sides of a traction head rack are inserted into the skull of the patient, the skull of the patient is placed at a position required in the operation, then rocker arms
1 are respectively fixed on the skull nails at two sides, and are screwed on an arch arm of a traction bow through a fixing knob 2; the bow arms
5 at the two sides of the traction bow are respectively connected with the sliding block
3, and the sliding block
3 can slide in the linear sliding rail
4; the ratchet 7 at the lower end of the Y-shaped grabbing arm
6 is connected with the gear such as
The ratchet of the headstock base is screwed after being involuted, and when the upper end of the Y-shaped grabbing arm
6 is respectively connected with the two linear sliding rails
4, the linear sliding rails
4 are ensured to be parallel to the ground; one end of the traction lasso is connected with the traction head frame through a connecting ring, and the other end of the traction lasso is connected with a heavy hammer of 1/10 weight of the patient through a fixed pulley, so that the patient is continuously and horizontally dragged.
The utility model discloses a headstock is drawn to slide rail formula can make patient's skull be fixed in the required position of art person because of it possesses four skull nails, rocking arm, fixes bow arm and slider, linear slide rail and the Y type on the rocking arm and grab the arm, can stabilize the skull in the art simultaneously, avoids vertical direction and ascending displacement in week to be favorable to the art person to realize fusing operations such as operation, and effectively reduced the emergence of medical accidents such as eye pressurized blindness.
Moreover, the Y-shaped grasping arm of the traction head frame is connected with the linear slide rail, and the two sides of the traction bow are connected with the slide blocks matched with the slide rail, so that the traction head frame can move back and forth along the slide rail without displacement in the vertical direction, the continuous head-to-head traction force and the stability of the skull of the patient with atlantoaxial dislocation are ensured, and the atlantoaxial reposition effect is improved. The instrument is convenient to use, high in safety and high in clinical practical value.
The rail-type traction head may be directly connected with, for example
The base or the connector of the head frame is connected, can be lifted along with the operating table, is convenient for the operation of an operator in the operation, and has stronger practicability and compatibility. The traction bow fixed with the slide block can slide on the linear slide rail, and the continuous horizontal traction force in the operation is ensured without generating force in other directions under the traction of the lasso and the heavy hammer. The four-nail traction bow with the rocker arm can keep the skull of the patient stable while fixing the skull of the patient in the position required by the operator. After the Y-shaped grasping arm with the ratchet is fixed with the slide rail, the skull of the patient can not generate vertical displacement, and meanwhile, the risks of pressing the eyes of the patient, falling off of the tracheal cannula and the like can be avoided.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.