Lumbar puncture practice device based on ultrasonic guidance

Abstract

The utility model relates to the technical field of lumbar puncture practicing devices, and discloses a lumbar puncture practicing device based on ultrasonic guidance, which comprises a human body model, a lumbar vertebra model arranged on the back of the human body model, a puncture needle and an ultrasonic probe respectively arranged on one side of the lumbar vertebra model, and a replacement assembly arranged on one side of the lumbar vertebra model. After a lumbar vertebra model is punctured, only the pressing disc needs to be pressed towards one side, the pressing disc drives the sliding plate to slide on the inner side of the second sliding groove, meanwhile, the sliding plate compresses the first spring, at the moment, the push rod moves downwards, the locking block compresses the second spring, and then the second spring is replaced. When the training device is used, a new mounting frame and a new lumbar vertebra model can be replaced, the lumbar vertebra model which is used for many times can be conveniently replaced through the replacement assembly, the lumbar vertebra model can be rapidly replaced through simple pressing and pulling operation, the training device can be repeatedly used, and the teaching cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lumbar puncture training devices, in particular to a lumbar puncture training device based on ultrasound guidance. Background Art

[0002] A lumbar puncture is a medical procedure used to obtain a sample of spinal fluid or administer medication. It is done by inserting a long, thin needle through the dura mater into the subarachnoid space in the lumbar region to obtain the sample or administer medication.

[0003] Lumbar puncture is a common clinical operation that requires precise positioning and operation skills. In medical education, students usually need to practice on real patients, but doing so not only poses certain risks to patients, but also has limited teaching resources. Traditional lumbar puncture practice devices usually have complex and costly replacement of lumbar models. Therefore, a lumbar puncture practice device based on ultrasound guidance is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a lumbar puncture training device based on ultrasound guidance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lumbar puncture practice device based on ultrasound guidance, comprising a human model, a lumbar model is arranged on the back of the human model, a puncture needle and an ultrasonic probe are arranged on one side of the lumbar model, and a replacement component is arranged on one side of the lumbar model;

[0006] The replacement component includes a mounting frame and a pressing plate, a slide plate is fixed at the bottom of the pressing plate, a locking groove is opened on one side of the mounting frame, a push rod is fixed at the bottom of the slide plate, and an insertion groove and a first sliding groove are respectively opened inside the human body model.

[0007] Preferably, the outer side of the mounting frame is inserted into the inner side of the insertion groove, and the outer side of the lumbar vertebra model is fixed to the inner side of the top of the mounting frame.

[0008] Preferably, the inner wall of the first slide groove is provided with a second slide groove and a third slide groove.

[0009] Preferably, a locking block is slidably connected to the inner side of the third sliding groove, the outer side of the locking block is inserted into the inner side of the locking groove, and a second spring is connected between one side of the locking block and the inner side of the third sliding groove.

[0010] Preferably, a limiting groove is provided on one side of the locking block, and a second inclined surface is provided on the inner side of the limiting groove.

[0011] Preferably, a first inclined surface is provided on one side of the bottom of the push rod, and one side of the first inclined surface is slidably connected to one side of the second inclined surface.

[0012] Preferably, the outer side of the slide plate is slidably connected to the inner side of the second slide groove, and a first spring is connected between one side of the second slide groove and one side of the slide plate.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] The utility model uses a lumbar vertebra model that needs to be replaced after puncture, and only needs to press the pressing plate to one side, and the pressing plate drives the slide plate to slide on the inner side of the second slide groove. At the same time, the slide plate compresses the first spring, and the push rod follows and moves downward, and the locking block compresses the second spring. At this time, the right end of the locking block leaves the inner side of the locking groove, and then the mounting frame is pulled upward to take out the mounting frame with the lumbar vertebra model installed, and a new mounting frame and lumbar vertebra model can be replaced. By replacing the components, the lumbar vertebra model that has been used many times can be easily replaced. The lumbar vertebra model can be quickly replaced through simple pressing and pulling operations, so that the training device can be reused, reducing the teaching cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the human body model of the utility model from top view;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the slide plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the inclined surface matching part of the utility model.

[0021] Explanation of the accompanying drawings: 1. human body model; 2. lumbar model; 3. replacement component; 31. mounting frame; 32. pressing plate; 33. slide plate; 34. first spring; 35. locking block; 36. push rod; 37. first inclined plane; 38. second inclined plane; 39. locking slot; 310. second spring; 4. insertion slot; 5. first slide slot; 6. second slide slot; 7. third slide slot; 8. limiting slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0026] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0027] Example

[0028] See also Figure 1-5The utility model provides a technical solution: a lumbar puncture practice device based on ultrasound guidance, comprising a human body model 1, a lumbar model 2 is arranged on the back of the human body model 1, a puncture needle and an ultrasonic probe are arranged on one side of the lumbar model 2, and a replacement component 3 is arranged on one side of the lumbar model 2;

[0029] The replacement component 3 includes a mounting frame 31 and a pressing plate 32. A slide plate 33 is fixed at the bottom of the pressing plate 32. When the lumbar vertebra model 2 needs to be replaced after puncture, it is only necessary to press the pressing plate 32 to one side. The pressing plate 32 drives the slide plate 33 to slide on the inner side of the second slide groove 6. A locking groove 39 is provided on one side of the mounting frame 31. A push rod 36 is fixed at the bottom of the slide plate 33. An insertion groove 4 and a first slide groove 5 are respectively provided inside the human body model 1. The outer side of the mounting frame 31 is inserted into the inner side of the insertion groove 4. The outer side of the lumbar vertebra model 2 is fixed to the inner side of the top of the mounting frame 31. The inner wall of the first slide groove 5 is provided with a second slide groove 6 and a third slide groove 7. At the same time, the slide plate 33 compresses the first spring 34. At this time, the push rod 36 moves downward with it, so that the first inclined surface 37 slides on the inner side of the second inclined surface 38. At this time, the locking block 35 is pushed to slide to the left inside the third slide groove 7. At the same time, the locking block 35 compresses the second spring 310.

[0030] The third slide groove 7 is slidably connected with a locking block 35, and the outer side of the locking block 35 is inserted into the inner side of the locking groove 39. A second spring 310 is connected between one side of the locking block 35 and the inner side of the third slide groove 7. A limiting groove 8 is provided on one side of the locking block 35, and a second inclined surface 38 is provided on the inner side of the limiting groove 8. A first inclined surface 37 is provided on one side of the bottom of the push rod 36, and one side of the first inclined surface 37 is slidably connected to one side of the second inclined surface 38. The outer side of the slide plate 33 is slidably connected to the inner side of the second slide groove 6, and a first spring 34 is connected between one side of the second slide groove 6 and one side of the slide plate 33, so that the right end of the locking block 35 leaves the inner side of the locking groove 39. Then, the mounting frame 31 is pulled upward to take out the mounting frame 31 with the lumbar vertebra model 2 installed, and a new mounting frame 31 and lumbar vertebra model 2 can be replaced. The lumbar vertebra model 2 that has been used many times can be easily replaced by replacing the replacement component 3. The lumbar vertebra model 2 can be quickly replaced by simple pressing and pulling operations, so that the training device can be reused, reducing the teaching cost.

[0031] Working principle: When medical students need to perform lumbar puncture, they can use the puncture needle to perform lumbar puncture on the lumbar model 2 under the guidance of the ultrasonic probe. When the lumbar model 2 needs to be replaced after puncture, they only need to press the pressing plate 32 to one side, and the pressing plate 32 drives the slide plate 33 to slide on the inner side of the second slide groove 6. At the same time, the slide plate 33 compresses the first spring 34. At this time, the push rod 36 moves downward, so that the first inclined surface 37 slides on the inner side of the second inclined surface 38, and the locking block 35 is pushed to the left. Slide on the inner side of the third slide groove 7, and at the same time, the locking block 35 compresses the second spring 310, so that the right end of the locking block 35 leaves the inner side of the locking groove 39, and then pull the mounting frame 31 upward to take out the mounting frame 31 with the lumbar vertebra model 2 installed, and replace it with a new mounting frame 31 and lumbar vertebra model 2. By replacing the component 3, the lumbar vertebra model 2 that has been used multiple times can be easily replaced. Through simple pressing and pulling operations, the lumbar vertebra model 2 can be quickly replaced, so that the practice device can be reused, reducing the teaching cost.

[0032] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0033] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0034] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lumbar puncture training device based on ultrasound guidance, comprising a human model (1), Features: The back of the human body model (1) is provided with a lumbar vertebra model (2), one side of the lumbar vertebra model (2) is provided with a puncture needle and an ultrasonic probe, and one side of the lumbar vertebra model (2) is provided with a replacement component (3); The replacement assembly (3) comprises a mounting frame (31) and a pressing plate (32), a slide plate (33) is fixed at the bottom of the pressing plate (32), a locking groove (39) is provided on one side of the mounting frame (31), a push rod (36) is fixed at the bottom of the slide plate (33), and an insertion groove (4) and a first slide groove (5) are respectively provided inside the human body model (1).

2. A lumbar puncture training device based on ultrasound guidance according to claim 1, Features: The outer side of the mounting frame (31) is inserted into the inner side of the insertion groove (4), and the outer side of the lumbar vertebra model (2) is fixed to the inner side of the top of the mounting frame (31).

3. The ultrasound-guided lumbar puncture training device according to claim 2, Features: The inner wall of the first sliding groove (5) is provided with a second sliding groove (6) and a third sliding groove (7).

4. The ultrasound-guided lumbar puncture training device according to claim 3, Features: A locking block (35) is slidably connected to the inner side of the third sliding groove (7), the outer side of the locking block (35) is inserted into the inner side of the locking groove (39), and a second spring (310) is connected between one side of the locking block (35) and the inner side of the third sliding groove (7).

5. The ultrasound-guided lumbar puncture training device according to claim 4, Features: A limiting groove (8) is provided on one side of the locking block (35), and a second inclined surface (38) is provided inside the limiting groove (8).

6. The ultrasound-guided lumbar puncture training device according to claim 5, Features: A first inclined surface (37) is provided on one side of the bottom of the push rod (36), and one side of the first inclined surface (37) is slidably connected to one side of the second inclined surface (38).

7. The ultrasound-guided lumbar puncture training device according to claim 6, Features: The outer side of the slide plate (33) is slidably connected to the inner side of the second slide groove (6), and a first spring (34) is connected between one side of the second slide groove (6) and one side of the slide plate (33).

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