CN110880257A - Vein simulation injection auxiliary device based on medical nursing teaching - Google Patents
Vein simulation injection auxiliary device based on medical nursing teaching Download PDFInfo
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- CN110880257A CN110880257A CN201911241962.5A CN201911241962A CN110880257A CN 110880257 A CN110880257 A CN 110880257A CN 201911241962 A CN201911241962 A CN 201911241962A CN 110880257 A CN110880257 A CN 110880257A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention provides a vein simulation injection auxiliary device based on medical nursing teaching, which relates to the technical field of medical instruments and aims to solve the problems that one common failure reason of common vein injection is that an injection needle is penetrated too shallow, so that the injection is injected into the epidermis, and the other common failure reason is that the needle penetrates through the opposite blood vessel, so that the blood vessel is penetrated oppositely, the position penetration of a beginner is also a common problem, and the position is only penetrated at a fixed point in the penetration training teaching, but the control of the depth and the force is difficult to train, and comprises a base; and a console is vertically arranged at the position close to the right of the rear end of the plane at the top of the base. According to the invention, the upper end of the angle adjusting mechanism is fixedly provided with the support frame, the support frame is matched with the locking pin along the width of the sliding groove, the two limiting plates which are symmetrical to each other are symmetrically arranged in the side wall of the inner cavity of the simulation box, and the simulation box can be adjusted at a certain angle by matching with the angle adjusting mechanism, so that the simulation of puncturing at different angles is facilitated.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an intravenous simulation injection auxiliary device based on medical nursing teaching.
Background
Along with the high-speed development of medical treatment level, the demand of medical staff is increasing day by day, therefore medical teaching becomes a big module in the teaching field, in the medical teaching field, mostly needs the teaching aid. In the field of medical teaching, intravenous injection teaching is indispensable, and in order to enable students to well master intravenous injection skills, intravenous injection simulation devices are mostly used.
An intravenous injection simulation device for medical teaching in patent application CN201610558060.4 comprises a main body box, wherein the main body box is connected with an arm, an arterial tube and a venous tube are arranged in the arm, the arterial tube and the venous tube in the arm are communicated at the end part of the arm, the arterial tube and the venous tube are both connected to a circulating water tank arranged in the main body box, a circulating pump is arranged on the arterial tube, a second control valve is arranged at the rear section of the venous tube at an injection part, the outer layer of the arm at the injection part is a skin simulation layer, and the circulating pump and the second control valve are connected to a power distribution control box arranged in the main body box; the invention is provided with the main body box connected with the arm, the arterial tube and the venous tube are arranged in the arm, the arterial tube and the venous tube are both communicated with the circulating water tank, and the circulating pump is arranged on the pipeline, so that the human blood circulating system can be well simulated, the intravenous injection of the venous tube with pressure can be trained by students, and the mastering degree of the students on the intravenous injection skill can be greatly improved.
The common failure reasons of intravenous injection are that the injection needle penetrates too shallow to inject into the epidermis, and the needle penetrates the opposite blood vessel to penetrate the blood vessel, so that the deviation of the position penetration of a beginner is a common problem, and in the penetration training teaching, only the fixed point penetration of the position is aimed at, and the control of the depth and the strength is difficult to train.
Therefore, in view of the above, the present invention provides an intravenous simulation injection assisting device based on medical nursing teaching, which is developed and improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides an intravenous simulation injection assisting device based on medical nursing teaching, which is used for solving the problems that one common failure reason of common intravenous injection is that an injection needle penetrates too shallow to inject into the epidermis, and the other common failure reason is that the needle penetrates through the opposite blood vessel to cause blood vessel penetration, the position penetration of a beginner is also common, and in the penetration training teaching, only fixed-point penetration of the position is aimed at, and the control of the depth and the strength is difficult to train.
The invention relates to a vein simulation injection auxiliary device based on medical nursing teaching, which is achieved by the following specific technical means:
an intravenous simulation injection auxiliary device based on medical nursing teaching comprises a base; a console is vertically arranged at the position close to the right of the rear end of the plane at the top of the base; an angle adjusting mechanism is vertically and upwards fixedly installed in the middle of the rear end of the plane at the top of the base; the middle part of the front end of the angle adjusting mechanism is rotatably connected with the middle part of the side wall of the rear end of the simulation box through a rotating shaft; an auxiliary target is fixedly arranged in the middle of the top plane of the simulation box; an injection needle is inserted above the auxiliary target; a vein bionic box is arranged in the simulation box below the auxiliary target; the left side wall and the right side wall of the inner cavity of the simulation box are respectively and fixedly provided with a liquid drainage mechanism; the bottom of the vein bionic box is fixedly provided with two symmetrical infrared distance measuring sensors.
Further, the control cabinet includes the display screen, the upper end fixed mounting of control cabinet has the display screen of wedge form, the display screen is connected through the electrical property with infrared distance measuring sensor.
Further, angle adjustment mechanism includes support frame, fitting pin, extension spring, fender dish, adjustment groove and card edge, angle adjustment mechanism's upper end fixed mounting has the support frame, the adjustment groove of rectangle is seted up to the left end and the right-hand member of the front end curb plate of support frame symmetry respectively, the upper end border and the lower extreme border department of adjustment groove rear end fixed mounting have the interior card edge of detaining of L form respectively, and it has the fender dish to slide built-in along its card, the perpendicular pegging graft has the fitting pin in the fender dish, the extension spring has been cup jointed on the fitting pin, and the front end and the fender dish stationary phase of its extension spring are connected.
Further, the simulation case includes window, angular adjustment dish, is in the same direction as spout, anti-skidding dish and limiting plate, the front end lateral wall middle part of simulation case is provided with the window, the rear end lateral wall middle part fixed mounting of simulation case has the angular adjustment dish, the annular has been seted up in the same direction as the spout on the back plane of angular adjustment dish, it has the anti-skidding dish to inlay in the angular adjustment dish of the inboard of spout, and it suits with the width of spout and the diameter of fitting pin, the limiting plate of two mutual symmetries is installed to the symmetry in the inner chamber lateral wall of simulation case.
Furthermore, the auxiliary target comprises a guide cup, the auxiliary target is composed of three support legs, the middle part of the auxiliary target is fixedly provided with the inverted conical guide cup, the upper port of the guide cup is larger than the diameter of the needle head of the injection needle, and the lower port of the guide cup is consistent with the outer diameter of the injection needle.
Further, the bionic box of vein is including bionical skin cotton, cushion column and buffer spring, it is cotton that the bionical skin is embedded to have in the inner box of the bionic box of vein, the perpendicular downward fixed mounting in bottom plane middle part of the bionic box of vein has the cushion column, the bottom of the bionic box of vein is passed to the lower extreme of cushion column, the buffer spring has been cup jointed on the cushion column, and is very special, and the cotton thickness of bionical skin can be according to the vascular degree of depth setting of conventional vein.
Furthermore, the drainage mechanism comprises a drainage pipe and a communicating hose, the inner end of the drainage mechanism is respectively communicated with the bottom of the vein bionic box through the communicating hose, and the outer end of the drainage mechanism is communicated with the outside through the drainage pipe.
Furthermore, infrared distance measuring sensor includes the reflector plate, the reflector plate is correspondingly installed on the inner chamber bottom plate of simulation case of infrared distance measuring sensor below.
Compared with the prior art, the invention has the following beneficial effects:
because the upper end of the angle adjusting mechanism is fixedly provided with the supporting frame, the left end and the right end of the front end side plate of the supporting frame are respectively and symmetrically provided with a rectangular adjusting groove, the upper end edge and the lower end edge of the rear end of the adjusting groove are respectively and fixedly provided with an L-shaped clamping edge of an inner buckle, a baffle disc is arranged in the clamping edge in a sliding manner, a locking pin is vertically inserted in the baffle disc, a tension spring is sleeved on the locking pin, the front end of the tension spring is fixedly connected with the baffle disc, the left and right positions can be adjusted through the locking pin, so that different functions can be realized according to different positions of the locking pin in the adjusting groove, a window is arranged in the middle of the front end side wall of the simulation box, an angle adjusting disc is fixedly arranged in the middle of the rear end side wall of the simulation box, a forward sliding groove is annularly arranged on the back plane of the angle adjusting disc, an anti-slip disc, two limiting plates which are symmetrical to each other are symmetrically arranged in the side wall of the inner cavity of the simulation box, and the simulation box can be adjusted at a certain angle by matching with an angle adjusting mechanism, so that the simulation of the puncture at different angles is facilitated.
Because it is cotton to embed bionical skin in the interior box of the bionical box of vein, the perpendicular downward fixed mounting in bottom plane middle part of the bionical box of vein has the bumping post, the lower extreme of bumping post passes the bottom of the bionical box of vein, buffer spring has been cup jointed on the bumping post, it is unusual, the cotton thickness of bionical skin can be according to the vascular degree of depth setting of conventional vein, through cooperating with infrared distance measuring sensor, the cotton thickness of simulating the vein of the bionical skin of accessible, and infrared distance measuring sensor then can the dynamic data when the auxiliary measurement impales, the training personnel of being convenient for carry out the dynamics reduction.
Because the inner end of the liquid discharge mechanism is respectively communicated with the bottom of the vein bionic box through the communicating hose, and the outer end of the liquid discharge mechanism is communicated with the outside through the liquid discharge pipe, the liquid medicine injection device can simulate the human body to inject liquid medicine, and is convenient for improving the training effect.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front right upper axial view of the present invention.
Fig. 2 is a schematic diagram of the left rear upper axial view structure of the invention.
Fig. 3 is a schematic view of the enlarged portion of fig. 2 of the present invention.
Fig. 4 is a schematic view of the structure of the present invention in a rotating state.
Fig. 5 is a right-view structural diagram of the present invention.
Fig. 6 is a schematic view of the needle assembly of the present invention in a removed state.
Fig. 7 is an axial view schematically showing the structure of the injection needle of the present invention in a removed state.
Fig. 8 is a schematic structural view of the angle adjustment mechanism of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a base; 2. a console; 201. a display screen; 3. an angle adjusting mechanism; 301. a support frame; 302. a locking pin; 303. a tension spring; 304. a catch tray; 305. an adjustment groove; 306. clamping edges; 4. an injection needle; 5. a simulation box; 501. a window; 502. an angle adjusting disk; 503. a forward chute; 504. an anti-slip disc; 505. a limiting plate; 6. an auxiliary target; 601. a guide cup; 7. a vein bionic box; 701. bionic skin cotton; 702. a buffer column; 703. a buffer spring; 8. a liquid discharge mechanism; 801. a liquid discharge pipe; 802. a communication hose; 9. an infrared ranging sensor; 901. a reflective sheet.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a vein simulation injection auxiliary device based on medical nursing teaching, which comprises a base 1; a console 2 is vertically arranged at the position close to the right of the rear end of the top plane of the base 1; the middle of the rear end of the top plane of the base 1 is vertically and upwardly fixedly provided with an angle adjusting mechanism 3, the angle adjusting mechanism 3 comprises a support frame 301, a locking pin 302, a tension spring 303, a baffle disc 304, an adjusting groove 305 and a clamping edge 306, the upper end of the angle adjusting mechanism 3 is fixedly provided with the support frame 301, the left end and the right end of a front end side plate of the support frame 301 are respectively and symmetrically provided with the rectangular adjusting groove 305, the upper end edge and the lower end edge of the rear end of the adjusting groove 305 are respectively and fixedly provided with an L-shaped clamping edge 306 which is internally provided with the baffle disc 304 in a sliding manner, the locking pin 302 is vertically inserted into the baffle disc 304, the tension spring 303 is sleeved on the locking pin 302, the front end of the tension spring 303 is fixedly connected with the baffle disc 304, the left and right positions can be adjusted by the locking pin 302, and different functions can be realized according to; the middle part of the front end of the angle adjusting mechanism 3 is rotationally connected with the middle part of the side wall of the rear end of the simulation box 5 through a rotating shaft; an auxiliary target 6 is fixedly arranged in the middle of the top plane of the simulation box 5; an injection needle 4 is inserted above the auxiliary target 6; the vein bionic box 7 is installed in the simulation box 5 below the auxiliary target 6, the vein bionic box 7 comprises bionic skin cotton 701, a buffer column 702 and a buffer spring 703, the bionic skin cotton 701 is embedded in an inner box of the vein bionic box 7, the buffer column 702 is vertically and downwards fixedly installed in the middle of the bottom plane of the vein bionic box 7, the lower end of the buffer column 702 penetrates through the bottom of the vein bionic box 7, and the buffer spring 703 is sleeved on the buffer column 702; the left side wall and the right side wall of the inner cavity of the simulation box 5 are respectively and fixedly provided with a liquid discharge mechanism 8; the bottom of the vein bionic box 7 is fixedly provided with two symmetrical infrared distance measuring sensors 9, and the model of the infrared distance measuring sensor 9 is KTR-GP2D 12.
Wherein, control cabinet 2 includes display screen 201, and the upper end fixed mounting of control cabinet 2 has the display screen 201 of wedge form, and display screen 201 is connected through the electrical property with infrared distance measuring sensor 9.
Wherein, simulation case 5 includes window 501, angle adjustment dish 502, with chute 503, antiskid disk 504 and limiting plate 505, simulation case 5's front end lateral wall middle part is provided with window 501, simulation case 5's rear end lateral wall middle part fixed mounting has angle adjustment dish 502, the annular has been seted up on angle adjustment dish 502's the back plane in the same direction as spout 503, in the same direction as spout 503 inboard angle adjustment dish 502 is embedded to have antiskid disk 504, its width that is in the same direction as chute 503 suits with the diameter of fitting pin 302, two mutual symmetry's limiting plate 505 are installed to the symmetry in simulation case 5's the inner chamber lateral wall, cooperation angle adjustment mechanism 3 can make simulation case 5 carry out the adjustment of certain angle, so that simulate the piercing of different angles.
The auxiliary target 6 comprises a guide cup 601, the auxiliary target 6 is composed of three support legs, the middle part of the auxiliary target 6 is fixedly provided with the inverted conical guide cup 601, the upper port of the guide cup 601 is larger than the needle head diameter of the injection needle 4, and the lower port of the guide cup 601 is consistent with the outer diameter of the injection needle 4, so that the training and the positioning injection are facilitated.
The liquid discharge mechanism 8 comprises a liquid discharge pipe 801 and a communication hose 802, the inner end of the liquid discharge mechanism 8 is communicated with the bottom of the vein bionic box 7 through the communication hose 802, the outer end of the liquid discharge mechanism 8 is communicated with the outside through the liquid discharge pipe 801, the human body feeling injection liquid medicine can be simulated, and the training effect is improved conveniently.
The infrared distance measuring sensor 9 comprises a reflector plate 901, and the reflector plate 901 is correspondingly installed on the inner cavity bottom plate of the simulation box 5 below the infrared distance measuring sensor 9.
The specific use mode and function of the embodiment are as follows:
when in use, the support frame 301 is fixedly installed at the upper end of the angle adjusting mechanism 3, the left end and the right end of the front end side plate of the support frame 301 are respectively symmetrically provided with a rectangular adjusting groove 305, the upper end edge and the lower end edge of the rear end of the adjusting groove 305 are respectively and fixedly installed with an L-shaped inner-buckled clamping edge 306, a baffle disc 304 is arranged in the clamping edge 306 in a sliding manner, a locking pin 302 is vertically inserted in the baffle disc 304, the locking pin 302 is sleeved with a tension spring 303, the front end of the tension spring 303 is fixedly connected with the baffle disc 304, the left and right positions can be adjusted through the locking pin 302, so that different functions are realized according to different positions of the locking pin 302 in the adjusting groove 305, the auxiliary target 6 is composed of three support legs, the middle part of the auxiliary target 6 is fixedly installed with an inverted conical guide cup 601, the upper end opening of the guide cup 601 is larger than the needle diameter of the injection needle 4, and the lower end opening of the, the middle part of the side wall of the front end of the simulation box 5 is provided with a window 501, the middle part of the side wall of the rear end of the simulation box 5 is fixedly provided with an angle adjusting disc 502, the back plane of the angle adjusting disc 502 is annularly provided with a smooth sliding groove 503, an anti-skid disc 504 is embedded in the angle adjusting disc 502 at the inner side of the smooth sliding groove 503, the width of the smooth groove 503 is adapted to the diameter of the locking pin 302, two symmetrical limiting plates 505 are symmetrically arranged in the side wall of the inner cavity of the simulation box 5, the simulation box 5 can be adjusted at a certain angle by matching with the angle adjusting mechanism 3, in addition, the inner end of the liquid discharge mechanism 8 is respectively communicated with the bottom of the vein bionic box 7 through a communicating hose 802, the outer end of the liquid discharge mechanism 8 is communicated with the outside through a liquid discharge pipe 801, the human body feeling can be simulated to inject liquid medicine, and the training effect is improved;
the utility model discloses a, it has bionical skin cotton 701 to embed in the interior box of the bionical box 7 of vein, the perpendicular downward fixed mounting in bottom plane middle part of the bionical box 7 of vein has buffer column 702, the bottom of the bionical box 7 of vein is passed to the lower extreme of buffer column 702, buffer spring 703 has been cup jointed on the buffer column 702, it is unusual, the cotton 701 of bionical skin's thickness can be according to the vascular degree of depth setting of conventional vein, cooperate through with infrared distance measuring sensor 9, the cotton 701 simulation vein's of accessible bionical skin thickness, and infrared distance measuring sensor 9 then can the dynamic data when the auxiliary measurement impales, be convenient for training personnel carry out the dynamics reduction.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. The utility model provides a vein simulation injection auxiliary device based on medical nursing teaching which characterized in that: comprises a base (1); a console (2) is vertically arranged at the position close to the right of the rear end of the top plane of the base (1); an angle adjusting mechanism (3) is vertically and upwards fixedly installed in the middle of the rear end of the top plane of the base (1); the middle part of the front end of the angle adjusting mechanism (3) is rotatably connected with the middle part of the side wall of the rear end of the simulation box (5) through a rotating shaft; an auxiliary target (6) is fixedly arranged in the middle of the top plane of the simulation box (5); an injection needle (4) is inserted above the auxiliary target (6); a vein bionic box (7) is arranged in the simulation box (5) below the auxiliary target (6); a liquid drainage mechanism (8) is respectively and fixedly arranged on the left side wall and the right side wall of the inner cavity of the simulation box (5); the bottom of the vein bionic box (7) is fixedly provided with two symmetrical infrared distance measuring sensors (9).
2. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: console (2) includes display screen (201), the upper end fixed mounting of console (2) has display screen (201) of wedge form, display screen (201) are connected through the electrical property with infrared distance measuring sensor (9).
3. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: angle adjustment mechanism (3) include support frame (301), fitting pin (302), extension spring (303), fender dish (304), adjustment groove (305) and card edge (306), the upper end fixed mounting of angle adjustment mechanism (3) has support frame (301), the adjustment groove (305) of rectangle are seted up to the left end and the right-hand member of the front end curb plate of support frame (301) symmetry respectively, the upper end border and the lower extreme border department of adjustment groove (305) rear end fixed mounting respectively have the interior card edge (306) of detaining of L form, and it slides in edge (306) and embeds in it has fender dish (304), it has fitting perpendicularly in fender dish (304) fitting with fitting pin (302), extension spring (303) have been cup jointed on fitting pin (302), and the front end of its extension spring (303) is fixed with fender dish (304) and is connected.
4. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: simulation case (5) include window (501), angle adjustment dish (502), in the same direction as spout (503), anti-skidding dish (504) and limiting plate (505), the front end lateral wall middle part of simulation case (5) is provided with window (501), rear end lateral wall middle part fixed mounting of simulation case (5) has angle adjustment dish (502), annular has been seted up in the same direction as spout (503) on the back plane of angle adjustment dish (502), it has anti-skidding dish (504) in the same direction as embedded in angle adjustment dish (502) of spout (503) inboard, and it suits with the diameter of fitting pin (302) in the width of spout (503), limiting plate (505) of two mutual symmetries are installed to the symmetry in the inner chamber lateral wall of simulation case (5).
5. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: the auxiliary target (6) comprises a guide cup (601), the auxiliary target (6) is composed of three support legs, the middle part of the auxiliary target (6) is fixedly provided with the inverted conical guide cup (601), the upper port of the guide cup (601) is larger than the diameter of the needle head of the injection needle (4), and the lower port of the guide cup (601) is consistent with the outer diameter of the injection needle (4).
6. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: the bionic vein box (7) comprises bionic skin cotton (701), a buffering column (702) and a buffering spring (703), the bionic skin cotton (701) is embedded in the inner box of the bionic vein box (7), the buffering column (702) is vertically and fixedly installed downwards in the middle of the bottom plane of the bionic vein box (7), the lower end of the buffering column (702) penetrates through the bottom of the bionic vein box (7), the buffering spring (703) is sleeved on the buffering column (702), and particularly, the thickness of the bionic skin cotton (701) can be set according to the depth of a conventional vein vessel.
7. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: the drainage mechanism (8) comprises a drainage pipe (801) and a communication hose (802), the inner end of the drainage mechanism (8) is communicated with the bottom of the vein bionic box (7) through the communication hose (802) respectively, and the outer end of the drainage mechanism (8) is communicated with the outside through the drainage pipe (801).
8. The medical care teaching-based intravenous simulation injection assisting device according to claim 1, characterized in that: the infrared distance measuring sensor (9) comprises a reflector plate (901), and the reflector plate (901) is correspondingly installed on the inner cavity bottom plate of the simulation box (5) below the infrared distance measuring sensor (9).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111932977A (en) * | 2020-09-27 | 2020-11-13 | 孙继兰 | Vein simulation injection auxiliary device based on medical nursing teaching |
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| 单志军 等: "网络虚拟静脉注射系统的构建与实践", 《实验室科学》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111932977A (en) * | 2020-09-27 | 2020-11-13 | 孙继兰 | Vein simulation injection auxiliary device based on medical nursing teaching |
| CN111932977B (en) * | 2020-09-27 | 2022-04-12 | 孙继兰 | Vein simulation injection auxiliary device based on medical nursing teaching |
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| CN110880257B (en) | 2021-06-01 |
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