CN207909366U - The lower simulator for puncturing backbone of ultrasound - Google Patents

Abstract

The utility model discloses a simulating device for puncturing the spine under ultrasound, which comprises a spine model, a container and a soaking substance, the container is used to accommodate the soaking substance, the soaking substance is used to soak the spine model, and the spine The model is soaked in the soaking substance, wherein the spine model includes a model body, an air bag and a spinal canal, the spinal canal is clamped in the air bag, and the air bag is used to simulate the ligamentum flavum of the human body, which can move Plugged in the model body. The simulation device for puncturing the spine under ultrasound is equipped with an air bag including a spinal canal that can be movably plugged in the model body. On the one hand, due to the existence of the air bag, it can simulate the feeling of falling when the ligamentum flavum is broken; on the other hand, The switching of the puncture position is simple and convenient, so that the puncture practice can be performed effectively for many times, and the replacement of the air bag and the spinal canal is simple and convenient, which greatly improves the practice efficiency and reduces the cost.

Description

Simulator for spinal puncture under ultrasound

technical field

The utility model relates to the technical field of medical teaching aids, in particular to a simulation device for puncturing the spine under ultrasound.

Background technique

In recent years, with the rapid development of ultrasound technology and equipment, ultrasound imaging of the spinal region has been widely used in the fields of anesthesia and pain treatment. Intraspinal puncture, nerve root injection, lumbar paravertebral block, lumbosacral plexus block, caudal puncture and facet joint, posteromedial branch of spinal nerve block, etc. have aroused general enthusiasm for learning, and a large number of workshops on spinal ultrasound have sprung up in various places .

However, in the past, mannequins were mostly used in simulation teaching, which was limited to observation under scanning, and it was difficult to provide more practical puncture experience. Mannequins not only have high labor costs, but also have a very limited training time, which greatly limits the learning effect and enthusiasm of students. At the same time, the traditional puncture models in the past were all simple spine structures built in rubber, which could not meet the simulation imaging under ultrasound. In the recent teaching and training activities, we tried to explore the construction of a spine model with ultrasound imaging function. This model can not only simulate the imaging of the bony structure of the spine under ultrasound, but also complete the simulated puncture under the guidance of ultrasound in real time. unanimous praise. However, at present, this model cannot realize the signal feedback during the puncture process, that is, when the needle tip of the puncture needle breaks through the ligamentum flavum and enters the epidural space, touches the lumbar nerve root or touches the articular surface of the articular convexity, the model cannot give the operator real-time feedback , Usually there must be a teacher to give real-time guidance, which limits the learning process of learners, especially beginners, to some extent. Moreover, the existing models cannot perform limited puncture exercises, and the last puncture exercise often affects the following exercises.

Utility model content

In view of this, the utility model provides a simulation device for spinal puncture under ultrasound that can give real-time feedback to practitioners and can be used continuously for many times, so as to solve the problems existing in the prior art.

According to the utility model, there is provided a simulation device for puncturing the spine under ultrasound, comprising a spine model, a container and soaking substances, the container is used to accommodate the soaking substance, the soaking substance is used to soak the spine model, and the spine the model is soaked in the soaking substance,

Wherein, the spine model includes a model body, an airbag and a spinal canal, the spinal canal is clamped in the airbag, and the airbag is used to simulate the ligamentum flavum of the human body, which is movably plugged in the model body .

Preferably, the airbag includes a balloon body and a flexible skeleton, the flexible skeleton is used to support the balloon body,

Wherein, the capsule body is provided with an insertion cavity for accommodating the spinal canal.

Preferably, the airbag further includes an inflator, and the inflator communicates with the bladder for inflating the bladder.

Preferably, a power plug is also included, and the power plug is used for plugging in an external power supply.

Preferably, a reserved circuit interface and a puncture needle are also included, and the reserved circuit interface is used for electrically connecting the puncture needle.

Preferably, a plurality of indicator lights are provided on the outer wall of the container, respectively used to indicate the positions where the puncture needle punctures different spinal models.

Preferably, a conductive layer is provided on the outer surface of the transverse process of the model body.

Preferably, lumbosacral nerves are provided on the model body, and a conductive layer is provided on the outer surface of the lumbosacral nerves.

Preferably, it also includes a plurality of fixing devices for fixing the spine model.

Preferably, the soaking substance is a mixture of gelatin, agar, and preservatives.

The simulation device for puncturing the spine under ultrasound provided by the utility model is equipped with an air bag including a spinal canal that can be movably plugged in the model body. On the one hand, due to the existence of the air bag, it can simulate the sense of falling when the ligamentum flavum is pierced; On the other hand, the switching of the puncture position is simple and convenient, so that the puncture practice can be performed effectively for many times, and the replacement of the air bag and the spinal canal is simple and convenient, which greatly improves the practice efficiency and reduces the cost.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 shows a schematic structural diagram of a simulation device for ultrasonic puncture of the spine according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of the circuit part of the simulator for ultrasonic puncture of the spine according to an embodiment of the present invention.

In the figure: spine model 100, container 2, soaking substance 3, model body 11, air bag 12, bag body 121, flexible skeleton 122, inflatable device 123, spinal canal 13, fixing device 14, power plug 41, reserved circuit interface 42 , external power supply 43, pia mater 44, transverse process 45, lumbosacral nerve 46, master control switch 47, puncture needle 48, first indicator light 491, first indicator light 492, first indicator light 493.

Detailed ways

Embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples, and should not be used to limit the protection scope of the present utility model.

Fig. 1 shows a schematic structural diagram of a simulation device for ultrasonic puncture of the spine according to an embodiment of the present invention. As shown in FIG. 1 , this simulator for spinal puncture under ultrasound can be used to perform simulated exercises for puncture anesthesia in the spinal canal 13 , so that beginners can quickly master the puncture skills. The simulation device for puncturing the spine under ultrasound includes a spine model 100, a container 2 and a soaking substance 3, the container 2 is used to accommodate the soaking substance 3, the soaking substance 3 is used to soak the spine model 100, and the spine The model 100 is soaked in said soaking substance 3 .

The spine model 100 is fixed in the container 2 through a plurality of fixing devices 14 , and the container 2 is a heatable container 2 . The soaking substance 3 is a mixture of gelatin, agar, and preservatives. The mixture is used to simulate the human body except for the skeleton, and the mixture can be heated and reshaped for multiple uses. A conductive layer (not shown) is provided on the outer surface of the transverse process 45 of the model body 11, a lumbosacral nerve 46 is provided on the model body 11, and a lumbosacral nerve 46 is provided on the outer surface of the lumbosacral nerve 46. Conductive layer (not shown in the figure).

The spine model 100 includes a model body 11 , an air bag 12 and a spinal canal 13 , the spinal canal 13 is clamped in the air bag 12 , and the air bag 12 is movably packed in the model body 11 . The airbag 12 is used to simulate the ligamentum flavum of the human body. The airbag 12 includes a balloon body 121 and a flexible skeleton 122 , and the flexible skeleton 122 is used to support the balloon body 121 . Wherein, the capsule body 121 is provided with an insertion cavity for accommodating the spinal canal 13 . The air bag 12 wraps the spinal canal 13 and is inserted into the middle cavity of multiple vertebrae from one end of the model body 11 .

Specifically, the capsule body 121 is designed as an annular structure, and the middle annular cavity, ie, the accommodation cavity, is used for inserting into the spinal canal 13 . The flexible skeleton 122 is a plurality of rubber rings, which are connected in the capsule body 121 to support the capsule body 121 and squeeze the outer wall of the capsule body 121, so that the outer wall of the capsule body 121 and the inner wall of the middle chamber of the vertebrae are tightly flexible touch. In this way, on the one hand, the airbag 12 can be fixed, and on the other hand, the airbag 12 can be moved relative to the model body 11, such as rotated or pulled out.

Further, the airbag 12 also includes an inflator 123 , and the inflator 123 communicates with the bag body 121 for inflating the bag body 121 . In this implementation, the inflation device 123 is a rubber bag arranged outside the container 2, and the rubber bag and the air bag 12 are connected by a flexible tube, and the air bag 12 can be inflated by repeatedly pinching and pressing with hands. In an alternative embodiment, the inflation device 123 is selected as a syringe communicating with the airbag, so as to realize the function of inflating the airbag.

The ultrasonic spine puncture simulation device also includes a power plug 41 and a reserved circuit interface 42, the power plug 41 is used to insert an external power supply 43 (see Figure 2), and the reserved circuit interface 42 is used for electrical connection Piercing needle 48 (see Figure 2).

Further, a plurality of indicator lights are provided on the outer wall of the container 2 , which are respectively used to indicate the positions where the puncture needle 48 punctures into different spine models 100 .

In this embodiment, when the puncture needle 48 punctures, the signal indication of multiple indicator lights is realized through corresponding circuits.

Fig. 2 shows a schematic structural diagram of the circuit part of the simulator for ultrasonic puncture of the spine according to an embodiment of the present invention. As shown in Figure 2, this circuit part comprises external power supply 43, pia mater 44, transverse process 45 and lumbosacral nerve 46, master control switch 47 and puncture needle 48, and first indicator light 491, second indicator light and the first indicator light 491. Three indicator lights and other electronic devices. Wherein, the puncture needle 48 is connected with the first electrode of the external power supply 43, the pia mater 44, the transverse process 45 and the lumbosacral nerve 46 are respectively connected with the second electrode of the external power supply 43, the puncture needle 48 can be connected with the pia mater 44, the transverse process 45 and the lumbosacral nerve 46 are in contact with each other to form the first circuit, the second circuit or the third circuit respectively. Wherein, the first indicator light 491 is arranged on the first circuit, is used for indicating whether the puncture needle 48 touches the pia mater 44; the second indicator light 492 is arranged on the second circuit, is used for indicating whether the puncture needle 48 touches the transverse process 45; the third indicator light 493 is set on the third circuit, and is used to indicate whether the puncture needle 48 touches the lumbosacral nerve 46 or not. Three indicator lights can play a role in guiding the puncture. The main control switch 47 can be replaced by the power plug 41 in Fig. 1, and plays the role of controlling the on-off of the power supply. The external power supply 43 can be direct current or alternating current.

When the simulation device for puncturing the spine under ultrasound in this embodiment is in use, first insert the spinal canal 13 into the air bag 12, then insert the air bag 12 into the spine model 100, and then operate the inflation device 123 to inflate until the spinal canal 13 is firmly fixed. Fixed in the spine model 100. Then, the power is turned on, and the puncture position is searched under ultrasonic imaging through the puncture needle 48 . If the pia mater 44 is used as the puncture target, then when the puncture needle 48 punctures the air bag 12, the puncture practitioner will have a sense of loss, thereby simulating the feeling that the needle point of the puncture needle 48 penetrates into the ligamentum flavum, and when the needle point further penetrates into the soft When the meninges 44, the first indicator light 491 lights up at this time, indicating that the puncture is successful. During the puncture process, if the transverse process 45 or the lumbosacral nerve 46 is punctured, the corresponding indicator light will light up so as to serve as a puncture guide. Of course, the transverse process 46 or the lumbosacral nerve 46 can also be used as the puncture target for practice, and the part as the puncture target can serve as an indicator during the process.

During the puncturing practice, because the soaking substance 3 will be penetrated, the air bag 12 will be punctured, thereby affecting the effect of the puncturing practice again. At this point, the soaking substance 3 can be heated so that the soaking substance 3 can be reshaped. As for the airbag 12, the airbag 12 can be rotated at an angle to switch between different puncture positions, so as not to affect the effect of re-puncture practice. When the air bag 12 cannot be used due to multiple punctures, the air bag 12 can be directly taken out, and the air bag 12 can be replaced again, or the air bag 12 and the spinal canal 13 can be replaced as a whole. Of course, only the vertebral canal 13 can also be replaced in one replacement.

The simulation device for puncturing the spine under ultrasound in this application is equipped with an air bag 12 including a spinal canal 13 that can be movably plugged in the model body 11. On the one hand, due to the existence of the air bag, it can simulate the failure when the ligamentum flavum is broken. On the other hand, the switching of the puncture position is simple and convenient, so that the puncture practice can be performed continuously and effectively for many times, and the replacement of the airbag 12 and the spinal canal 13 is simple and convenient, which greatly improves the practice efficiency and reduces the cost. .

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention The scope of the technical solution shall be included in the scope of the claims and description of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. A simulation device for puncturing the spine under ultrasound, characterized in that it comprises a spine model, a container and a soaking substance, the container is used to accommodate the soaking substance, and the soaking substance is used to soak the spine model, the The spine model is soaked in the soaking substance, Wherein, the spine model includes a model body, an airbag and a spinal canal, the spinal canal is clamped in the airbag, and the airbag is used to simulate the ligamentum flavum of the human body, which is movably plugged in the model body . 2. The simulation device for ultrasonic puncture of the spine according to claim 1, wherein the balloon comprises a capsule body and a flexible skeleton, and the flexible skeleton is used to support the capsule body, Wherein, the capsule body is provided with an insertion cavity for accommodating the spinal canal. 3 . The simulation device for ultrasonic puncture of the spine according to claim 2 , wherein the air bag further comprises an inflation device, and the inflation device communicates with the balloon body for inflating the balloon body. 4 . 4. The simulation device for ultrasonic spine puncture according to claim 1, further comprising a power plug for plugging in an external power supply. 5 . The simulator for ultrasonic spine puncture according to claim 1 , further comprising a reserved circuit interface and a puncture needle, and the reserved circuit interface is used to electrically connect the puncture needle. 6. The simulation device for puncturing the spine under ultrasound according to claim 5, wherein a plurality of indicator lights are arranged on the outer wall of the container, which are respectively used to indicate that the puncture needle punctures different spine models s position. 7. The simulation device for ultrasonic puncture of the spine according to claim 1, wherein a conductive layer is provided on the outer surface of the transverse process of the model body. 8 . The simulator for puncturing the spine under ultrasound according to claim 1 , wherein a lumbosacral nerve is provided on the model body, and a conductive layer is provided on the outer surface of the lumbosacral nerve. 8 . 9. The simulation device for ultrasonic puncture of the spine according to claim 1, further comprising a plurality of fixing devices for fixing the spine model. 10 . The simulator for ultrasonic puncture of the spine according to claim 1 , wherein the soaking substance is a mixture of gelatin, agar, and preservatives. 11 .