CN109009136A - A kind of novel intervertebral measuring appliance - Google Patents

Abstract

The present invention relates to a novel intervertebral measuring device, which includes a length measuring shaft, an angle measuring shaft, a length dial, a bracing device, an angle dial, screws, and a vertebral body fitting surface; The scale line and sawtooth are arranged on the length dial; the described spreading device includes a spreading device and a bayonet; the first angle measuring shafts on the left and right sides and the spreading device are respectively connected with screws; the described The angle dials are respectively arranged above the left and right first length measuring axes; the ends of the second length measuring device and the second angle measuring device on the left and right sides are respectively connected to the vertebral body fitting surface by screws. Its advantages are as follows: it can accurately and quickly measure the length and angle between adjacent vertebral bodies, and it is convenient to cut out the titanium mesh that fits the vertebral bodies, so as to connect and fix the vertebral bodies, improve the quality of surgery, save operation time, and reduce complications. The probability of occurrence of symptoms can be reduced, the pain of patients can be reduced, and the recovery speed of patients after surgery can be increased.

Description

A new type of intervertebral measuring device

technical field

The invention relates to the technical field of medical instruments, in particular to a novel intervertebral measuring instrument.

Background technique

The spine is made up of 26 vertebrae and is the backbone of the human body. It not only supports the weight of the human body, but also protects the nerves, blood vessels and internal organs. It is an important part of the human body. The incidence of spinal tumors accounts for about 5% of bone tumors in the whole body, and thoracolumbar tumors are more common, and the disability rate and mortality rate are high, which brings serious economic burden to the family and society. Surgical intervention is the main treatment method. The main surgical methods are: total spondylectomy, nibble resection technique, and eggshell resection technique. The three techniques have their own advantages and disadvantages. In contrast, total spondylectomy is recognized as an ideal operation by scholars at home and abroad.

Because the spine is a bony structure, when the vertebral body between the spine is resected, it can only be supported and stabilized by rigid internal fixation. At present, there are many kinds of internal fixation materials used in spinal surgery. The use of titanium mesh internal fixation of the vertebral body can reduce the probability of complications and reduce the pain of patients. However, in current clinical medicine, estimation is usually used to judge the The distance and angle between the bodies, so as to cut the titanium mesh to fix the vertebral bodies on both sides. This method obviously has shortcomings, not only the distance and angle between the vertebrae are not accurate enough, but also the size of the titanium mesh cut out is different, which cannot be effectively fitted The surface of the vertebral body causes waste of titanium mesh. Therefore, the straight-line distance and angle between vertebral bodies are very important for cutting the size of the titanium mesh, and there is no measuring instrument that can accurately and quickly measure the straight-line distance and angle between vertebrae.

Chinese patent document: CN201620698567.5, application date 2016.07.05, patent name: a spinal intervertebral moment measuring device. Disclosed is a spinal intervertebral moment measuring device, which relates to the technical field of medical equipment. It includes a gripping rod, a control device, a monitoring device and a telescopic rod, the gripping rod is fixedly connected to the telescopic rod, and the interior is hollow and connected, and the control device and the monitoring device are arranged in the gripping rod and the telescopic rod; the control device It includes a knob, a rotating shaft, a gear and a rack, the knob is connected to the gear through the rotating shaft, one end of the rack is connected to the gear, and the other end is connected to the inner wall of the telescopic rod; the monitoring device includes a display screen, a control circuit and a sensor. The display screen and the sensor are respectively connected with the control circuit for detecting and displaying the amount of expansion and contraction.

A spinal intervertebral distance measuring device described in the above-mentioned patent document adopts a grip rod and a telescopic rod to be fixedly connected. The control device and the monitoring device are arranged in the grip rod and the telescopic rod. The knob is connected to the gear through the rotating shaft, and one end of the rack is connected to the gear. The other end is connected to the inner wall of the telescopic rod, and the display screen and the sensor are respectively connected to the control circuit for detecting and displaying the telescopic amount, so that the intervertebral distance can be accurately measured, and the operation is convenient and the data display is clear. But about a method that can accurately and quickly measure the length and angle between adjacent vertebral bodies, it is convenient to cut out the titanium mesh that fits the vertebral bodies, so as to connect and fix the vertebral bodies, improve the quality of surgery, save operation time and reduce complications There is no relevant report about a new type of intervertebral measuring device that reduces the probability of occurrence, reduces the pain of patients, and increases the recovery speed of postoperative patients.

In summary, there is an urgent need for a method that can accurately and quickly measure the length and angle between adjacent vertebral bodies, so as to cut out the titanium mesh that fits the vertebral body, so as to connect and fix the vertebral body, improve the operation quality, and save It is a new type of intervertebral measuring device that reduces the operation time, reduces the probability of complications, relieves the pain of patients, and increases the recovery speed of postoperative patients.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method that can accurately and quickly measure the length and angle between adjacent vertebral bodies, so as to facilitate the cutting of titanium mesh that fits the vertebral bodies, thereby connecting and fixing the vertebral bodies, improving It is a new type of intervertebral measuring device that improves the quality of the operation, saves the operation time, reduces the probability of complications, relieves the pain of the patient, and increases the recovery speed of the postoperative patient.

For realizing above-mentioned object, the technical scheme that the present invention takes is:

A novel intervertebral measuring device, the intervertebral measuring device includes a length measuring shaft, an angle measuring shaft, a length dial, a support device, an angle dial, screws, and a vertebral body fitting surface; the length measuring shaft It includes a first length measurement axis and a second length measurement axis; the first length measurement axis and the second length measurement axis are fixedly connected in a right-angle structure; the angle measurement axis includes the first angle measurement axis, the second Two angle measurement shafts; the first angle measurement shaft and the second angle measurement shaft are connected by screws; the length dial is provided with scale lines and sawtooth; the sawtooth is located above the scale line; The length dials are set behind the first length measuring shafts on the left and right sides; the spreading device includes a spreading device and a bayonet; the spreading device is a cuboid structure, and the upper and lower sides are hollow structures, and the left and right bottoms are hollow structures The spreader is located on the upper left side of the spreader; the bayonet is set on the right side of the spreader; the left and right first length measuring devices are respectively fixed at both ends in the middle of the spreader On the front plate; the left and right first angle measuring axes are respectively arranged on the outside of the stretching device, relative to the positions of the left and right first length measuring axes; the first angle measuring axes on the left and right sides are respectively the same as the spreading device connected by screws; the angle dials are respectively arranged above the left and right first length measuring axes; the ends of the second length measuring devices and the second angle measuring devices on the left and right sides are respectively connected to the vertebral body by screws meet face.

As a preferred technical solution, the parts connected to each other by screws are hinged.

As a preferred technical solution, the overall shape of the spreader is circular.

As a preferred technical solution, a notch engagement structure is formed between the bayonet socket and the sawtooth.

As a preferred technical solution, the angle dial is fan-shaped.

As a preferred technical solution, the expansion device is a telescopic structure.

As a preferred technical solution, the measuring instrument body is made of stainless steel.

As a preferred technical solution, the titanium mesh is made of metal materials.

As a preferred technical solution, the bottom of the vertebral body fitting surface is made of non-slip material.

The present invention has the advantage that:

1. Utilizing the connection method that the first measuring axis and the second measuring axis are at right angles, it is not only convenient to directly read the scale on the length dial, but also makes the vertebral body fitting surface at the end of the second measuring axis close to the The surface of the adjacent vertebral body of the patient will not affect the measurement results.

2. The spreader provided on the upper left side of the spreader is round in shape, and the body of the spreader can be spread to the right by rotating up and down, which is convenient for the vertebral body at the end of the second length measuring shaft on the left and right sides. The fitting surface can be fitted to the surface of the patient's adjacent vertebral body, which is convenient for measurement.

3. The first length measurement axes on the left and right sides are respectively fixed on the front plates on both sides of the expansion device, so that the first length measurement axes on the left and right sides will not be offset in angle during the measurement process, so that it is convenient to measure The linear distance between the adjacent vertebral bodies of the patient makes the measurement process fast and accurate, and it is convenient for the medical staff to cut out the titanium mesh of the required length according to the measurement results.

4. The head end of the length scale is placed on the inner side of the spreader as a whole through the position below the right side of the spreader, and the head end is close to the left side of the spreader to ensure accurate linear distance measurement.

5. The bayonet located on the right side of the spreader, when the spreader stretches the body of the spreader to the right, due to its own elasticity, the spreader will not shrink back, and through the design of the bayonet, it is convenient The bayonet can be embedded in the sawtooth above the length dial to form an incisor matching structure, which can prevent the retraction device from retracting automatically, facilitate the operation of medical staff, save operation time, and make the measurement results more accurate. accurate.

6. The first angle measurement shaft located on the outside of the expansion device opposite to the first length measurement axis on the left and right sides is connected with the expansion device by screws, and can be freely rotated, and the first angle measurement axis is connected to the second angle The measuring axis, the second angle measuring axis and the vertebral body fitting surface are all connected by screws, so that the first angle measuring axis, the second angle measuring axis, and the vertebral body fitting surface can move with each other, which is convenient for the The vertebral body fitting surface is adjusted to be close to the surface of the patient's vertebral body, so as to obtain a precise angle between the patient's adjacent vertebral bodies.

7. The angle dials above the first length measurement axis on the left and right sides are in a fan-shaped structure, which can directly read the angle between the patient's vertebral bodies through measurement, which is convenient for medical staff to cut out the titanium mesh with the required angle according to the measurement results .

8. The design of the length measurement axis and the angle measurement axis can quickly and accurately measure the straight-line distance and angle between the adjacent vertebral bodies of the axis patient, which is convenient for medical staff to cut out the required titanium mesh according to the measurement results, so that the cut out titanium mesh The mesh fits more closely to the patient's vertebral body, which improves the quality of the operation, saves operation time, reduces the probability of complications, relieves the patient's pain, and increases the postoperative recovery speed of the patient.

Description of drawings

Accompanying drawing 1 is the front view three-dimensional structure schematic diagram of a kind of novel intervertebral measuring device of the present invention.

Accompanying drawing 2 is a rear view three-dimensional structural schematic diagram of a novel intervertebral measuring instrument of the present invention.

Accompanying drawing 3 is a rear view transparent three-dimensional structure schematic diagram of a novel intervertebral measuring instrument of the present invention.

Accompanying drawing 4 is the three-dimensional structure schematic diagram of the measurement result of a novel intervertebral measuring device of the present invention compared with the cut titanium mesh.

Detailed ways

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

The reference signs and components involved in the accompanying drawings are as follows:

1. Length measuring axis 11. First length measuring axis

12. Second length measuring axis 2. Angle measuring axis

21. First angle measuring axis 22. Second angle measuring axis

3. Length dial 31. Scale line

32. Sawtooth 4. Spreading device

41. Spreader 42. Bayonet

5. Angle dial 6. Screw

7. Vertebral body fitting surface

Example 1

Please refer to accompanying drawings 1-3, Fig. 1-3 is the three-dimensional structure diagram of a novel intervertebral measuring instrument of the present invention. A new type of intervertebral measuring device, the intervertebral measuring device includes a length measuring shaft 1, an angle measuring shaft 2, a length dial 3, a support device 4, an angle dial 5, a screw 6, and a vertebral body fitting surface 7 The length measuring shaft 1 includes a first length measuring shaft 11 and a second length measuring shaft 12; the first length measuring shaft 11 and the second length measuring shaft 12 are fixedly connected in a right-angle structure; The angle measuring shaft 2 includes a first angle measuring shaft 21 and a second angle measuring shaft 22; the first angle measuring shaft 21 is connected with the second angle measuring shaft by a screw 6; There are scale lines 31 and sawtooth 32; the sawtooth 32 is located above the scale line 31; the length dial 3 is located behind the first length measurement axis 11 on the left and right sides; Device 41, bayonet 42; The described stretching device 4 is a cuboid structure, the upper and lower sides are hollow structures, and the left and right bottoms are hollow structures; the described stretching device 41 is located on the upper left side of the spreading device 4; the described The bayonet 42 is located on the right side of the spreader 41; the left and right first length measuring devices 11 are respectively fixed on the front plates at both ends of the spreader 4 inside; the left and right first angle measuring shafts 21 are respectively set On the outside of the spreading device 4, relative to the position of the left and right first length measuring shafts 11; the first angle measuring shafts 21 on the left and right sides are connected to the spreading device 4 through the screws 6 respectively; the angle dial 5 are respectively arranged above the left and right first length measuring shafts 11; the ends of the second length measuring device 12 and the second angle measuring device 22 on the left and right sides are respectively connected to the vertebral body fitting surface 7 by screws 6 .

It should be noted that: the measuring instrument body is made of stainless steel; the titanium mesh is made of metal material; the first measuring axis 11 and the second measuring axis 12 are connected at right angles , it is not only convenient to directly read the scale on the length dial 3, but also enables the vertebral body fitting surface 7 arranged at the end of the second length measuring axis 12 to be closely attached to the surface of the adjacent vertebral body of the patient, thereby not affecting the measurement result; The parts connected to each other by the screws 6 are hinged, and can be freely rotated; the spreader 41 provided on the upper left side of the spreader 4 is generally circular, and can be rotated up and down to facilitate The main body of the stretching device 4 can be stretched to the right side, so that the vertebral body fitting surface 7 provided at the end of the second length measuring shaft 12 on the left and right sides can fit with the surface of the adjacent vertebral body of the patient, which is convenient for measurement; The first length measurement shafts 11 on the left and right sides are respectively fixed on the front plates on both sides inside the expansion device 4, so that the first length measurement shafts 11 on the left and right sides will not be angularly offset during the measurement process, thereby facilitating the measurement The straight-line distance between adjacent vertebral bodies of the patient can be obtained, so that the measurement process is fast and accurate, and it is convenient for the medical staff to cut out the titanium mesh of the required length according to the measurement results (see Figure 4); the head end of the length dial 3 passes through the support The lower position on the right side of the opening device 4 will be placed on the inner side of the opening device 4 as a whole, and the head end will be close to the left side of the opening device 4 to ensure that the measured straight-line distance is accurate; the card located on the right side of the opening device 41 mouth 42, when the spreader 41 stretches the body of the spreader 4 to the right, due to the stretchability, the spreader 4 will automatically retract, and through the design of the bayonet 42, the bayonet 42 can be embedded in the An incisor matching structure is formed in the sawtooth 32 provided above the length dial 3, which prevents the automatic retraction of the spreader 4, facilitates the operation of the medical staff, saves the operation time, and makes the measurement result more accurate; The first angle measuring shaft 21 located on the outside of the spreading device 4 relative to the first length measuring shaft 11 on the left and right sides is connected with the spreading device 4 through a screw 6, which can be rotated arbitrarily, and the first angle measurement The shaft 21 is connected with the second angle measuring shaft 22, the second angle measuring shaft 22 and the vertebral body fitting surface 7 through the design of the screw 6, so that the first angle measuring shaft 21, the second angle measuring shaft 22, the vertebral body The fitting surfaces 7 can be mutually movable, so that the vertebral body fitting surfaces 7 can be adjusted to be close to the surface of the patient's vertebral body, so as to obtain a precise angle between the patient's adjacent vertebral bodies; The angle dial 5 at the position above the first length measurement axis 11 has a fan-shaped structure, and the angle between the vertebral bodies of the patient can be directly read out through measurement, which is convenient for the medical staff to cut out the titanium mesh of the required angle according to the measurement results (see Figure 4) ; The design of the length measurement axis 1 and the angle measurement axis 2 can quickly and accurately measure the linear distance and angle between the adjacent vertebral bodies of the axis patient, so that the medical staff can cut out the required titanium mesh according to the measurement results (see Fig. 4), so that the cut titanium mesh fits the patient's vertebral body more closely, improves the operation quality, saves operation time, reduces the probability of complications, and alleviates the It reduces the pain of the patient and increases the recovery speed of the patient after surgery.

As a preference, the bottom of the vertebral body fitting surface 7 is made of non-slip material, which has anti-slip effect and has a definite fixing effect.

The method of using the intervertebral measuring device: by rotating and adjusting the spreader 41, the spreader 4 is stretched to the right, so that the vertebral body fitting surfaces 7 on the left and right sides are respectively close to the surface of the adjacent vertebral body of the patient, At this time, by placing the bayonet 42 on the right side of the spreader 41 in the sawtooth 32 above the length dial 3, the spreader 4 can be kept in a fixed state. The angle dial 5 above the 11 can directly read the angle between the adjacent vertebral bodies of the patient; , and the set position of the left and right first measuring shafts 11 is fixed, the distance between the left and right first measuring shafts 11 and the two ends of the stretching device 4 can be directly obtained; by reading the degree on the length dial 3, subtract the left and right The diameter of the first measurement shaft 11 and the distance between the left and right first measurement shaft 11 and the two ends of the expansion device 4 can draw the straight-line distance between the two length side measurement shafts 1, because the first length measurement shaft 11 and the second The length measurement axes 12 are connected by a right-angle fixed structure, and the straight-line distance of the second length measurement axis 12 can be directly obtained by adding the straight-line distance between the two length measurement axes 1 to the straight-line distance of the two second length measurement axes 12 , the straight-line distance between the adjacent vertebral bodies of the patient can be obtained; the medical staff can cut out the titanium mesh that fits the patient's vertebral body better according to the straight-line distance and angle measurement results of the patient's adjacent vertebral bodies.

A new type of intervertebral measuring device of the present invention utilizes the connection mode that the first measuring axis and the second measuring axis are at right angles, which not only facilitates the direct reading of the scale on the length dial, but also makes it easy to read the scale on the second length measuring axis. The vertebral body fitting surface at the end can be closely attached to the surface of the adjacent vertebral body of the patient, so as not to affect the measurement results; the parts connected by screws are hinged, and can be rotated freely; the left side of the distraction device is The spreader provided at the position is overall circular, and the main body of the spreader can be stretched to the right by rotating up and down, so that the vertebral body fitting surface at the end of the second length measurement shaft on the left and right sides can be adjacent to the patient The surface of the vertebral body fits together, which is convenient for measurement; the first length measurement axes on the left and right sides are respectively fixed on the front plates on both sides inside the expansion device, so that the first length measurement axes on the left and right sides will not be angularly distorted during the measurement process Offset, so that it is easy to measure the linear distance between the adjacent vertebral bodies of the patient, making the measurement process fast and accurate, and it is convenient for the medical staff to cut out the titanium mesh of the required length according to the measurement results; The position below the side will be placed on the inside of the spreader as a whole, and the head end will be close to the left side of the spreader to ensure the accuracy of the measured straight-line distance; After the body is stretched to the right, the stretching device will not shrink back due to its own elasticity, and through the design of the bayonet, the bayonet can be embedded in the sawtooth above the length dial to form a tooth-cutting matching structure. In this way, the automatic retraction of the spreading device can be prevented, the operation of the medical staff is facilitated, the operation time is saved, and the measurement result is more accurate; The angle measurement axis and the expansion device are connected by screws, which can be rotated freely, and the first angle measurement axis and the second angle measurement axis, the second angle measurement axis and the vertebral body fitting surface are all designed by screws connection, so that the first angle measurement axis, the second angle measurement axis, and the vertebral body fitting surface can be mutually movable, so that the vertebral body fitting surface can be adjusted to be close to the surface of the patient's vertebral body, so as to obtain the patient's adjacent vertebral body The precise angle between the vertebral bodies; the angle dials located above the first length measurement axis on the left and right sides are in a fan-shaped structure, and the angle between the patient's vertebral bodies can be read directly through measurement, which is convenient for medical staff to cut out the vertebral bodies according to the measurement results. Titanium mesh that requires an angle; the design of the length measurement axis and the angle measurement axis can quickly and accurately measure the straight-line distance and angle between the adjacent vertebral bodies of the patient on the axis, which is convenient for medical staff to cut out the required titanium mesh according to the measurement results, so that The cut out titanium mesh fits the patient's vertebral body better, which improves the quality of the operation, saves operation time, reduces the probability of complications, relieves the patient's pain, and increases the postoperative recovery speed of the patient.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and supplements can also be made, and these improvements and supplements should also be considered Be the protection scope of the present invention.

Claims (9)

1. a kind of novel intervertebral measuring appliance, which is characterized in that the intervertebral measuring appliance includes linear measure longimetry axis, angle measurement Axis, length scale disk, support arrangement, angle dial, screw, centrum binding face；The linear measure longimetry axis includes the first length Measure axis, the second linear measure longimetry axis；It is solid at right-angle type structure between the first linear measure longimetry axis and the second linear measure longimetry axis Fixed connection；The angle measurement axis includes first angle measurement axis, second angle measurement axis；The first angle measures axis It is connected by screw between second angle measurement axis；The length scale disk is equipped with graduation mark, sawtooth；The sawtooth is set Above graduation mark；The length scale disk is set to the left and right sides the first linear measure longimetry axis rear；The device for spreading packet Include dilator, bayonet；The device for spreading is rectangular parallelepiped structure, is up and down hollow structure, and left and right lower section is hollow structure；Institute The dilator stated is set to device for spreading upper left position；The bayonet is set to the right side of dilator；The left and right first Length-measuring appliance is individually fixed on the foreboard of device for spreading bosom both ends；The left and right first angle measurement axis difference Position on the outside of device for spreading, relative to the first linear measure longimetry axis of left and right；The first angle of the left and right sides measures Same screw of crossing is connect axis respectively with device for spreading；The angle dial is respectively arranged on the top of the first linear measure longimetry axis of left and right Position；Second length-measuring appliance of the left and right sides, second angle measuring device end be connected by screw to respectively in Centrum binding face.

2. intervertebral measuring appliance according to claim 1, which is characterized in that between screw component interconnected For articulated manner.

3. intervertebral measuring appliance according to claim 1, which is characterized in that the dilator is integrally rounded.

4. intervertebral measuring appliance according to claim 1, which is characterized in that form one between the bayonet and sawtooth and cut Tooth fit structure.

5. intervertebral measuring appliance according to claim 1, which is characterized in that the fan-shaped structure of the angle dial.

6. intervertebral measuring appliance according to claim 1, which is characterized in that the device for spreading is telescopic structure.

7. intervertebral measuring appliance according to claim 1, which is characterized in that the measuring appliance ontology is by stainless steel material system It makes.

8. intervertebral measuring appliance according to claim 1, which is characterized in that the titanium net is fabricated by metal material.

9. intervertebral measuring appliance according to claim 1, which is characterized in that the bottom of the centrum binding face is by ribband Material is made.