Portable lumbar puncture practice device

Abstract

The utility model discloses a portable lumbar puncture practice device which comprises a box body, a mounting rack, springs, human body-imitated lumbar vertebra bones and a lumbar vertebra bone bending regulator, and the mounting rack is mounted in the box body; the spring is mounted on the mounting frame; the imitated human body lumbar vertebra bone is bound on the spring; the lumbar vertebra bending adjuster comprises a first rotating hand disc, a second rotating hand disc, a first universal flexible shaft, a second universal flexible shaft, a first telescopic cylinder and a second telescopic cylinder, and the first rotating hand disc and the second rotating hand disc are installed on the top of the box body; the first telescopic cylinder is vertically mounted on the mounting frame, and a first telescopic rod of the first telescopic cylinder is connected with the spring; the first rotating hand disc is connected with a screw rod of the first telescopic cylinder through a first universal flexible shaft; the second telescopic cylinder is horizontally mounted on the mounting frame, and a second telescopic rod of the second telescopic cylinder is connected with the spring; and the second rotating hand disc is connected with a screw rod of the second telescopic cylinder through a second universal flexible shaft. The lumbar vertebra bending degree can be adjusted, so that the simulation authenticity is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of lumbar puncture testing instruments, and more specifically to a portable lumbar puncture practice device. Background Technology

[0002] Lumbar puncture is a commonly used examination method in neurology. It involves inserting a needle into the lumbar intervertebral space to measure cerebrospinal fluid pressure and collect the fluid for clinical testing. As a fundamental skill, lumbar puncture is often performed by junior residents. Practice can improve their clinical skills and diagnostic abilities, leading to more accurate and effective treatment for patients. Therefore, lumbar puncture practice is of great significance for both medical education and clinical practice.

[0003] However, the commonly used lumbar puncture practice device is a rubber mannequin. First, the model is fixed, and its body shape and posture cannot be changed, which is quite different from clinical practice. Second, the mannequin is large, about half the size of a normal adult, and has a certain weight, making it inconvenient to practice anytime and anywhere. It often requires centralized training in a room where the mannequin is placed. In addition, the skin on the surface of the mannequin is either irreplaceable or too costly to replace. Repeated puncture practice often leaves a dense array of needle holes that cannot be eliminated. After repeated use, even novice operators can find the insertion point by following the location of the needle holes, affecting their thinking and judgment.

[0004] Therefore, providing a portable lumbar puncture practice device is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a portable lumbar puncture practice device to improve the realism of the simulation and enhance clinical operation skills and diagnostic and treatment levels.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable lumbar puncture training device includes a housing, a mounting frame, a spring, a human-like lumbar vertebra, and a lumbar vertebra curvature adjuster. The mounting frame is installed inside the housing; the spring is installed on the mounting frame; the human-like lumbar vertebra is strapped to the spring; the lumbar vertebra curvature adjuster includes a first rotating hand disc, a second rotating hand disc, a first universal joint, a second universal joint, a first telescopic cylinder, and a second telescopic cylinder. The first rotating hand disc and the second rotating hand disc are respectively installed on the top of the housing; the first telescopic cylinder is vertically installed on the mounting frame, and its first telescopic rod is connected to the spring; the first rotating hand disc and the lead screw of the first telescopic cylinder are connected through the first universal joint; the second telescopic cylinder is horizontally installed on the mounting frame, and its second telescopic rod is connected to the spring; the second rotating hand disc and the lead screw of the second telescopic cylinder are connected through the second universal joint.

[0008] By adopting the above technical solutions, the beneficial effects of this utility model are as follows:

[0009] It can adjust the curvature of the lumbar vertebrae to improve the realism of the simulation and enhance clinical skills and diagnostic and treatment levels.

[0010] Furthermore, it also includes a support frame, two central shafts, and a side-lying angle adjuster. The support frame is installed inside the housing via the two central shafts on both sides. The two sides of the mounting frame are respectively connected to the inner ends of the two central shafts. The two ends of the spring are respectively fixedly connected to the two sides of the mounting frame. The side-lying angle adjuster includes a third rotary handwheel, a third universal flexible shaft, and a third telescopic cylinder. The third rotary handwheel is installed on the top of the housing. The third telescopic cylinder is horizontally installed on the housing, and its telescopic rod is fixedly connected to the support frame. The third rotary handwheel and the lead screw of the third telescopic cylinder are connected via the third universal flexible shaft.

[0011] The beneficial effect of adopting the above-mentioned further technical solution is that it enables the adjustment of body position to improve the realism of the simulation.

[0012] Furthermore, it also includes human-like subcutaneous connective tissue, two air bladders, and a body shape adjuster. The human-like subcutaneous connective tissue and the two air bladders on both sides are connected as one unit. Both air bladders are fixed on the support frame. The human-like subcutaneous connective tissue is located directly in front of the human-like lumbar vertebrae. The body shape adjuster is connected and communicates with the two air bladders respectively.

[0013] The beneficial effect of adopting the above-mentioned further technical solution is that the weight can be adjusted to improve the realism of the simulation.

[0014] Furthermore, the size adjuster includes an inflatable ball, a first three-way valve, and a second three-way valve. The first three-way valve is installed on the top of the housing. The inflatable ball is installed at the first air inlet of the first three-way valve via a one-way valve. The first air outlet of the first three-way valve is connected to the second air inlet of the second three-way valve via a hose. An exhaust valve is installed at the second air outlet of the first three-way valve. The two third air outlets of the second three-way valve are respectively connected to the two airbags via hoses.

[0015] Furthermore, it also includes a simulated skin collection column assembly and a simulated skin delivery column assembly. The simulated skin collection column assembly and the simulated skin delivery column assembly have the same structure, each including a support column, a sleeve, a rotating shaft, a rotating handle, and a positioning pin. The two support columns are vertically installed on both sides of the support frame. The sleeve is fixed to the top of the support frame and located directly above the support columns. The rotating shaft is located inside the sleeve and rotatably connected to it. The rotating handle is installed at the top of the rotating shaft, and the top of the support column is fixedly connected to the bottom of the rotating shaft. The positioning pin is screwed onto the through hole of the sleeve. The simulated skin is respectively wrapped around the two support columns on both sides, and the simulated skin is located in front of the simulated human subcutaneous connective tissue.

[0016] The beneficial effect of adopting the above-mentioned further technical solution is that it facilitates the replacement of simulated skin.

[0017] Furthermore, it also includes a storage bag, a support, and a simulated cerebrospinal fluid infusion bag. The storage bag is placed inside the simulated human lumbar vertebra; the support is fixed to the top of the box; the simulated cerebrospinal fluid infusion bag is hung on the support; and the simulated cerebrospinal fluid infusion bag is connected to the storage bag through a transmission tube.

[0018] Furthermore, the enclosure includes a main body and a door, the door being hinged to the main body; the door has a lumbar puncture window.

[0019] Furthermore, it also includes support legs, which are mounted on the housing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 The attached figure is a schematic diagram of the overall structure of a portable lumbar puncture practice device provided by this utility model in the closed state.

[0022] Figure 2 The attached figure is a schematic diagram of the overall structure of a portable lumbar puncture practice device provided by this utility model in the open state of the door;

[0023] Figure 3 The attached figure is a structural schematic diagram of a portable lumbar puncture practice device provided by this utility model, excluding the housing.

[0024] Figure 4 The attached figure is a schematic diagram of the lumbar vertebral curvature adjuster provided by this utility model;

[0025] Figure 5 The attached figure is a structural schematic diagram of the lateral angle adjuster provided by this utility model;

[0026] Figure 6 The attached figure is a schematic diagram of the body size adjuster provided by this utility model;

[0027] Figure 7 The attached figure is a structural schematic diagram of the simulated skin collection column assembly and the simulated skin delivery column assembly provided by this utility model;

[0028] Figure 8 The attached figure is a structural schematic diagram showing the connection relationship between the liquid storage bag and the simulated cerebrospinal fluid infusion bag provided by this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1-8As shown in the figure, this utility model discloses a portable lumbar puncture training device, including a housing 1, a mounting frame 2, a spring 3, a human-like lumbar vertebra 4, and a lumbar vertebral curvature adjuster 5. The mounting frame 2 is installed inside the housing 1; the spring 3 is installed on the mounting frame 2; the human-like lumbar vertebra 4 is tied to the spring 3; the lumbar vertebral curvature adjuster 5 includes a first rotating hand disc 51, a second rotating hand disc 52, a first universal flexible shaft 53, a second universal flexible shaft 54, a first telescopic cylinder 55, and a second telescopic cylinder 56. The first rotating hand disc 51 and the second rotating hand disc 52 are respectively installed on the top of the housing 1; the first telescopic cylinder 55 is vertically installed on the mounting frame 2 and its first telescopic rod is connected to the spring 3; the lead screws of the first rotating hand disc 51 and the first telescopic cylinder 55 are connected through the first universal flexible shaft 53; the second telescopic cylinder 56 is horizontally installed on the mounting frame 2 and its second telescopic rod is connected to the spring 3; the lead screws of the second rotating hand disc 52 and the second telescopic cylinder 56 are connected through the second universal flexible shaft 54. This invention allows the first rotating hand disc 51 to be rotated, and the first universal flexible shaft 53 to transmit the rotational motion to the lead screw of the first telescopic cylinder 55. The telescopic rod moves up and down under the guidance of the guide rail, following the nut, thereby driving the spring 3 to move up and down. Similarly, rotating the second rotating hand disc 52 can drive the telescopic rod of the second telescopic rod to move back and forth, thereby driving the spring 3 to move back and forth. This allows for adjustment of the curvature of the simulated human lumbar vertebra 4 on the spring 3, thereby improving the simulation realism and enhancing clinical operation skills and diagnostic and treatment levels.

[0031] To further optimize the technical solution of this utility model, it also includes a support frame 6, two central shafts 7, and a side-lying angle adjuster 8. The support frame 6 is installed inside the housing 1 via the two central shafts 7 on both sides. The two sides of the mounting frame 2 are respectively connected to the inner ends of the two central shafts 7. The two ends of the spring 3 are respectively fixedly connected to the two sides of the mounting frame 2. The side-lying angle adjuster 8 includes a third rotating hand disc 81, a third universal flexible shaft 82, and a third telescopic cylinder 83. The third rotating hand disc 81 is installed on the top of the housing 1. The third telescopic cylinder 83 is horizontally installed on the housing 1, and its telescopic rod is fixedly connected to the support frame 6. The lead screws of the third rotating hand disc 81 and the third telescopic cylinder 83 are connected via the third universal flexible shaft 82. During operation, rotating the third rotating hand disc 81 transmits the rotational motion to the lead screw of the third telescopic cylinder 83 via the third universal flexible shaft 82. The telescopic rod follows the nut and moves in extension and retraction under the guidance of the guide rail, thereby driving the support frame 6 to swing around the central shaft 7 to simulate the adjustment of body position and improve the realism of the simulation.

[0032] To further optimize the technical solution of this utility model, it also includes simulated human subcutaneous connective tissue 9, two airbags 10, and a body shape adjuster 11. The simulated human subcutaneous connective tissue 9 and the two airbags 10 on both sides are connected as one unit; both airbags 10 are fixed on the support frame 6; the simulated human subcutaneous connective tissue 9 is located directly in front of the simulated human lumbar vertebrae; the body shape adjuster 11 is connected and communicates with the two airbags 10 respectively. The body shape adjuster 11 can inflate and deflate the airbags 10 to adjust the body shape, thereby improving the realism of the simulation.

[0033] Specifically, the size adjuster 11 includes an inflatable ball 111, a first three-way valve 112, and a second three-way valve 113. The first three-way valve 112 is installed on the top of the housing 1. The inflatable ball 111 is installed at the first air inlet of the first three-way valve 112 via a one-way valve 114. The first air outlet of the first three-way valve 112 is connected to the second air inlet of the second three-way valve 113 via a hose. An exhaust valve 115 is installed at the second air outlet of the first three-way valve 112. The two third air outlets of the second three-way valve 113 are respectively connected to two airbags 10 via hoses. In use, the two airbags 10 are inflated by squeezing the inflatable ball 111. When the exhaust valve 115 is opened, the two airbags 10 are deflated.

[0034] To further optimize the technical solution of this utility model, it also includes a simulated skin collection column assembly 12 and a simulated skin delivery column assembly 13. The simulated skin collection column assembly 12 and the simulated skin delivery column assembly 13 have the same structure, both including a support column 121, a sleeve 122, a rotating shaft 123, a rotating handle 124, and a positioning pin 125. The two support columns 121 are vertically installed on both sides of the support frame 6; the sleeve 122 is fixed to the top of the support frame 6 and located directly above the support column 121; the rotating shaft 123 is located inside the sleeve 122 and is rotatably connected to it; the rotating handle 124 is installed on the top of the rotating shaft 123, and the top of the support column 121 is fixedly connected to the bottom of the rotating shaft 123; the positioning pin 125 is screwed onto the through hole of the sleeve 122; the simulated skin 14 is respectively wrapped around the two support columns 121 on both sides, and the simulated skin 14 is located in front of the simulated human subcutaneous connective tissue 9. By rotating the handle of the simulated skin delivery column assembly 13, the used simulated skin 14 is delivered and wound around the support column 121 of the rotating simulated skin delivery column assembly 13. At this time, there is a brand new simulated skin 14 between the two support columns 121, which makes it easy to replace the simulated skin 14.

[0035] To further optimize the technical solution of this utility model, it also includes a storage bag 15, a support 16, and a simulated cerebrospinal fluid infusion bag 17. The storage bag 15 is placed inside the simulated human lumbar vertebra 4; the support 16 is fixed to the top of the box 1; the simulated cerebrospinal fluid infusion bag 17 is hung on the support 16; the simulated cerebrospinal fluid infusion bag 17 and the storage bag 15 are connected and communicate with each other through a transmission pipe 18.

[0036] Specifically, the box 1 includes a box body 101 and a door 102, with the door 102 hinged to the box body 101; the door 102 has a lumbar puncture window 1021.

[0037] Specifically, it also includes support legs 19, which are mounted on the housing 1.

[0038] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A portable lumbar puncture practice device, comprising: The utility model provides a kind of human body simulation lumbar support, including box, mounting frame, spring, human body simulation lumbar bone, lumbar bone bending regulator, the mounting frame is mounted in the box inside;The spring is installed on the mounting frame;The human body simulation lumbar bone is tied on the spring;The lumbar bone bending regulator includes first rotary hand disc, second rotary hand disc, first universal flexible shaft, second universal flexible shaft, first telescopic cylinder and second telescopic cylinder, the first rotary hand disc and the second rotary hand disc are respectively installed on the top of the box;The first telescopic cylinder is vertically installed on the mounting frame and its first telescopic rod is connected with the spring;The first rotary hand disc is connected with the screw rod of the first telescopic cylinder by the first universal flexible shaft;The second telescopic cylinder is horizontally installed on the mounting frame and its second telescopic rod is connected with the spring;The second rotary hand disc is connected with the screw rod of the second telescopic cylinder by the second universal flexible shaft.

2. The portable lumbar puncture practice device of claim 1, wherein, It also includes support frame, two middle shafts and side-lying angle regulator, the support frame is installed in the box inside by two middle shafts on its both sides;The mounting frame both sides are respectively connected with the inner end of two middle shafts;The both ends of spring are respectively fixedly connected with the mounting frame both sides;The side-lying angle regulator includes third rotary hand disc, third universal flexible shaft and third telescopic cylinder, the third rotary hand disc is installed on the top of the box;The third telescopic cylinder is horizontally installed on the box and its telescopic rod is fixedly connected with the support frame;The third rotary hand disc is connected with the screw rod of the third telescopic cylinder by the third universal flexible shaft.

3. The portable lumbar puncture practice device of claim 2, wherein, It also includes human body simulation subcutaneous connective tissue, two air bags and fat-thin regulator, the human body simulation subcutaneous connective tissue and two air bags on its both sides are connected as a whole;Two air bags are fixed on the support frame;The human body simulation subcutaneous connective tissue is located in front of the human body simulation lumbar bone;The fat-thin regulator is respectively connected with two air bags.

4. The portable lumbar puncture practice device of claim 3, wherein, The fat-thin regulator includes inflatable ball, first three-way and second three-way, the first three-way is installed on the top of the box;The inflatable ball is installed in the first air inlet of the first three-way by one-way valve;The first air outlet of the first three-way and the second air inlet of the second three-way are connected by hose and communicated;The second air outlet of the first three-way is provided with exhaust valve;Two third air outlets of the second three-way are respectively connected with two air bags by hose and communicated.

5. The portable lumbar puncture practice device of claim 3, wherein, It also includes simulation skin collecting column assembly and simulation skin conveying column assembly, the simulation skin collecting column assembly and the simulation skin conveying column assembly are same structure, and all include support column, sleeve, pivot, rotary handle and positioning pin, two support columns are vertically installed on the both sides of the support frame;The sleeve is fixed on the top of the support frame and located above the support column;The pivot is located in the sleeve and rotationally connected therewith;The rotary handle is installed on the top end of the pivot, and the top end of the support column is fixedly connected with the bottom end of the pivot;The positioning pin is screwed on the through hole of the sleeve;Two sides of simulation skin are respectively wound on two support columns, and the simulation skin is located on the front side of the human body simulation subcutaneous connective tissue.

6. The portable lumbar puncture practice device of claim 1, wherein, The box body further comprises a liquid storage bag, a support and a simulated cerebrospinal fluid infusion bag, the liquid storage bag is arranged in the simulated human lumbar vertebra, the support is fixed on the top of the box body, the simulated cerebrospinal fluid infusion bag is hung on the support, and the simulated cerebrospinal fluid infusion bag is connected with the liquid storage bag through a transmission pipe.

7. The portable lumbar puncture practice device of claim 1, wherein, The box body comprises a box body and a door body, the door body is hinged to the box body, and the door body is provided with a lumbar puncture window.

8. The portable lumbar puncture practice device of claim 7, wherein, The box body further comprises a support leg, and the support leg is installed on the box body.

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