CN110599879A - Venous catheter tube washing and sealing teaching device and method - Google Patents
Venous catheter tube washing and sealing teaching device and method Download PDFInfo
- Publication number
- CN110599879A CN110599879A CN201910916946.5A CN201910916946A CN110599879A CN 110599879 A CN110599879 A CN 110599879A CN 201910916946 A CN201910916946 A CN 201910916946A CN 110599879 A CN110599879 A CN 110599879A
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- base
- blood vessel
- teaching
- sealing
- rubber layer
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Classifications
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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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/285—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for injections, endoscopy, bronchoscopy, sigmoidscopy, insertion of contraceptive devices or enemas
Abstract
The invention relates to the field of medical teaching instruments, in particular to a device and a method for teaching the washing and sealing of an intravenous catheter. The teaching device further comprises an intravenous catheter and an injector, the intravenous catheter is inserted into the blood vessel body through the rubber layer, and the injector can be connected with the intravenous catheter. When washing and sealing the tube, the mixed effect of the liquid in the blood vessel body and the venous catheter is observed to achieve the purpose of teaching and evaluation. The device has the advantages of simple structure, low cost and practical and obvious effect.
Description
Technical Field
The invention relates to the field of medical teaching, in particular to a device and a method for teaching washing and sealing of an intravenous catheter.
Background
With the gradual increase of the current medical level, the requirements on nursing work are more strict, and besides the strict grasp of theoretical knowledge, the nursing work also has operation skills. Venous catheters such as a venous indwelling needle and the like are medical instruments used for multiple times of infusion treatment, when medical care personnel puncture blood vessels of a patient by using the venous catheters, a puncture needle is pulled out of the indwelling catheter, a softer venous catheter is left to be placed in the blood vessels of a human body, and intermittent infusion is carried out through the venous catheter. The operation of flushing and sealing the tube is needed after each transfusion is finished, which is more challenging for clinical nurses, especially those with less experience, and the purpose can be achieved by long-time practice.
In clinical teaching, sometimes an injector is used for demonstrating manipulations of pulse tube flushing and positive pressure tube sealing, and the method is found to be incapable of judging the accuracy of the manipulations of students in the specific operation process, inconvenient to visually display and incapable of measuring and judging the correctness and the effect of the operations of the students in the tube flushing and tube sealing teaching practice. When practicing intravenous catheter's puncture, the practice teaching aid cost that uses at present is expensive, and the easy damage needs frequent change, also can't observe the effect of washing pipe and sealing the pipe, and the student is unfavorable for student's exercise operation again when more, and the number of times of student's contact is less for teaching work is difficult to effectively develop.
Disclosure of Invention
In view of this, the present invention is directed to a device and a method for teaching the flushing and sealing of venous catheters, which facilitate observation and evaluation of the correctness and accuracy of the operation of the nurse trainee, and have the advantages of simple and reasonable structure, low cost, and obvious and practical effect.
In order to achieve the purpose, the invention provides an intravenous catheter washing and sealing teaching device on one hand, which comprises a base, wherein a blood vessel body for supplying liquid is arranged inside the base, a liquid outlet communicated with the blood vessel body inside the base is arranged on the base, and a plug cover is arranged on the liquid outlet;
the rubber layer is used for simulating the skin of a human body and is arranged at the top of the base;
the blood vessel body is formed by thin rubber and used for simulating a human blood vessel and is connected to the lower part of the rubber layer.
Preferably, the bottom surface of the base is a horizontal surface or a concave U-shaped surface; and/or the bottom surface of the base is sanded.
Preferably, fixing ties for fixing the base are arranged on two sides of the base.
Preferably, the fixing tie is a nylon hook and loop fastener or a buckle structure.
Preferably, the base, the rubber layer and the blood vessel body are all made of transparent materials.
Preferably, the teaching device further comprises an intravenous catheter capable of being inserted into the blood vessel through the rubber layer, and a syringe capable of being connected to the intravenous catheter.
The invention also provides a method for teaching the flushing and sealing of the venous catheter, which is carried out in the teaching device and comprises the following steps:
s1, filling physiological saline into a blood vessel body of a base, and puncturing a puncture needle of the venous catheter into the blood vessel body through a rubber layer;
s2, adding colored liquid which is easy to distinguish colors into the injector, and connecting the injector with the intravenous catheter;
and S3, performing pipe washing and pipe sealing operation.
Preferably, the step S3 is to determine the correctness and validity of the flushing and sealing operation according to the mixing condition of the colored liquid in the syringe and the intravenous catheter and the physiological saline in the vascular body.
The venous catheter flushing and sealing teaching device simulates the skin of a human body through a rubber layer, simulates the forearm of the human body through a base and simulates the blood vessel of the human body through a blood vessel body formed by thin rubber; the liquid outlet is arranged to facilitate the addition and replacement of liquid; the puncture teaching is further completed by matching with the venous catheter; by using the teaching method of the teaching device, the physiological saline is added into the blood vessel, the color liquid with colors easy to distinguish is arranged in the injector, the evaluation of the washing and sealing teaching is completed by the liquid mixing effect of the injector and the venous catheter, the result is visual and clear, and the accuracy and the correctness of the operation of a student are conveniently evaluated. The device has the advantages of simple structure and low manufacturing cost, and is convenient to popularize and use in hospitals and schools.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of a venous catheter flushing and sealing teaching device of the present invention;
FIG. 2 is a sectional view of the venous catheter flushing and sealing teaching device in the direction of A-A;
fig. 3 is a partial top view of the intravenous catheter flushing and sealing teaching device.
Description of the reference numerals
10-base 101-drain outlet
102-stopper cap 103-securing tie
20-rubber layer 30-thin rubber
301-blood vessel body 40-venous catheter
50-Syringe
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to fig. 1 and 2, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1-3, the present invention provides a venous catheter wash tube sealing teaching device, including a base 10, a blood vessel body 301 for providing liquid is arranged inside the base 10, a liquid discharge port 101 communicating with the blood vessel body 301 inside the base 10 is arranged on the base 10, and a plug 102 is mounted on the liquid discharge port 101; the rubber layer 20 is used for simulating the skin of a human body, and the rubber layer 20 is arranged on the top of the base 10; the blood vessel body 301 is formed of a thin rubber 30 for simulating a blood vessel of a human body, and is connected to a lower portion of the rubber layer 20.
The liquid discharge port 101 is communicated with the blood vessel body 301 and is used for adding liquid or discharging liquid into the blood vessel body 301, so that the liquid in the blood vessel body 301 can be replaced conveniently, the repeated multi-time utilization of the intravenous catheter tube washing and sealing teaching device is achieved, the blood vessel body 301 after the liquid replacement is also convenient for observing the effect of the tube sealing teaching, and the top of the base 10 is formed by the rubber layer 20 so as to achieve the purpose of simulating human skin.
Further, the bottom of the base 10 is concave arc, U-shaped, linear or appropriate shape so that the base 10 can be matched with the forearm of a human body, or the base 10 is convenient to fix, so that the effect of truly simulating a medical care site can be achieved during use, and the puncture, tube flushing and tube sealing teaching can be stably and conveniently implemented.
In a preferred embodiment of the invention, fixing ties 103 for fixing the base 10 are arranged on two sides of the base 10, the fixing ties 103 are connected by a nylon hook-and-loop fastener or a buckle structure, and after the base 10 is matched with the forearm, the fixing ties 103 are used for fixing the base 10 and the forearm into a whole, so that the teaching effect is prevented from being influenced by shaking during puncturing, washing and sealing the tube; or the base 10 is placed on a table top and then fastened by the fixing bandage 103, so that the intravenous catheter flushing tube sealing teaching device is stably installed.
Further, the base 10, the blood vessel body 301 and the rubber layer 20 are all made of transparent materials, so that teaching steps or operation of a student can be observed more intuitively in the teaching process.
Further, the device for teaching the flushing and sealing of the venous catheter further comprises a venous catheter 40 and an injector 50, wherein the indwelling needle 50 can be inserted into the blood vessel body 301 through the rubber layer 20 to complete puncture teaching; the syringe 50 can be connected to the iv line 40 to complete the flush seal teaching.
The method for performing washing and sealing teaching by using the venous catheter washing and sealing teaching device comprises the following steps:
s1, filling physiological saline into a blood vessel body 301 of a base 10, and puncturing a puncture needle of a venous catheter 40 into the blood vessel body 301 through a rubber layer 20;
s2, adding colored liquid which is easy to distinguish colors into the injector 50, and connecting the injector 50 with the intravenous catheter 40;
and S3, performing pipe washing and pipe sealing operation.
In the step S3, a flushing method of pushing and stopping the syringe 50 to form a small vortex in the venous catheter 40 by the colored flushing liquid in the syringe 50 is adopted during flushing, and positive pressure sealing is adopted during sealing; or a non-positive pressure fitting, the syringe 50 needs to be pushed with a colored liquid seal on one side, and the syringe 50 is pulled back from the intravenous line 40 on the other side to maintain the positive pressure state in the intravenous line 40.
Specifically, during the tube sealing teaching, injecting the colored tube sealing liquid in the syringe 50 until 0.5ml of the colored tube sealing liquid remains, pulling out the needle head of the syringe 50 by the method of injecting the liquid medicine while withdrawing the needle, wherein the injection speed is greater than the needle pulling speed; or, injecting colored tube sealing liquid in the injector 50 until the remaining 0.5ml, and clamping the venous catheter 40 by using a medical small clamp; the specific method is that one hand holds the medical small clip, the other hand holds and pinches the side of the infusion joint, the small clip is quickly pushed to the bottom so that the extension tube of the intravenous catheter 40 is clamped and closed, and then the needle head of the injector 50 is withdrawn while being pushed.
Step S3 is to determine the correctness and validity of the flushing and sealing operation according to the mixing condition of the physiological saline and the colored liquid in the injector 50, the blood vessel 301 and the venous catheter 40.
In the invention, the blood vessel body 301 is filled with physiological saline, the liquid provided by the injector 50 is colored liquid which is easy to distinguish colors from the physiological saline, the tube washing and sealing operation is carried out after the injector 50 is connected with the venous catheter 40, and a teacher judges whether the tube washing and sealing operation of the student is correct and accurate by observing the mixing condition of the physiological saline and the colored liquid; meanwhile, in the teaching process of the teacher, the student can conveniently learn to master the pipe washing and sealing operation, and the teaching quality can be greatly improved.
In the teaching process, the physiological saline in the blood vessel body 301 is mixed with the colored liquid, and along with the increase of the times of the washing tube sealing teaching, the physiological saline is replaced through the liquid outlet 101 in time, so that the phenomenon that the teaching effect is influenced or the accuracy of the operation of a student cannot be accurately evaluated due to the fact that the colors of the physiological saline in the blood vessel body 301 and the colored liquid of the injector 50 are not easy to distinguish is prevented.
The basic structure, operation method and advantages of the present invention have been described in detail above, but the present invention is not limited thereto, for example, the intravenous catheter in the present invention may be an indwelling needle, and various simple modifications may be made to the technical solution of the present invention within the scope of the technical idea of the present invention, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be considered as the disclosure of the present invention, and all fall within the scope of the present invention.
Claims (8)
1. The utility model provides a venous catheter wash tub tube sealing teaching device which characterized in that includes:
the blood vessel drainage device comprises a base (10), wherein a blood vessel body (301) is arranged in the base (10) and used for providing liquid, a liquid drainage port (101) communicated with the blood vessel body (301) in the base (10) is formed in the base (10), and a plug cover (102) is installed on the liquid drainage port (101);
the rubber layer (20) is used for simulating the skin of a human body, and the rubber layer (20) is arranged on the top of the base (10);
the blood vessel body (301) is formed by thin rubber (30) and used for simulating a human blood vessel, and is connected to the lower part of the rubber layer (20).
2. Instructional device according to claim 1, characterized in that the bottom surface of the base (10) is a horizontal surface or a concave U-profile; and/or the bottom surface of the base (10) is frosted.
3. Instructional device according to claim 1, characterized in that the base (10) is provided on both sides with securing ties (103) for securing the base (10).
4. Instructional device according to claim 3, characterized in that the securing tie (103) is a nylon velcro or a snap-on construction.
5. Instructional device according to claim 1, characterized in that said base (10), said rubber layer (20) and said vascular body (301) are made of transparent material.
6. Instructional device according to claim 1, characterized in that it further comprises an intravenous catheter (40) and a syringe (50), said intravenous catheter (40) being insertable into said vascular body (301) through said rubber layer (20), said syringe (50) being connectable to said intravenous catheter (40).
7. A method for teaching the closing of an intravenous catheter during flushing, the method being performed in the teaching device of any one of claims 1-6, the method comprising the steps of:
s1, filling physiological saline into a blood vessel body (301) of a base (10), and puncturing a puncture needle of a venous catheter (40) into the blood vessel body (301) through a rubber layer (20);
s2, adding colored liquid which is easy to distinguish colors into the injector (50), and connecting the injector (50) with the venous catheter (40);
and S3, performing pipe washing and pipe sealing operation.
8. The method for teaching the intravenous catheter flushing and sealing according to claim 7, wherein the step S3 is to determine the correctness and validity of the flushing and sealing operation according to the mixing condition of the colored liquid in the syringe (50) and the intravenous catheter (40) and the physiological saline in the blood vessel body (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916946.5A CN110599879A (en) | 2019-09-26 | 2019-09-26 | Venous catheter tube washing and sealing teaching device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916946.5A CN110599879A (en) | 2019-09-26 | 2019-09-26 | Venous catheter tube washing and sealing teaching device and method |
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| Publication Number | Publication Date |
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| CN110599879A true CN110599879A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910916946.5A Pending CN110599879A (en) | 2019-09-26 | 2019-09-26 | Venous catheter tube washing and sealing teaching device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111754850A (en) * | 2020-05-21 | 2020-10-09 | 张忠丽 | Arm venipuncture training model |
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| CN111754850A (en) * | 2020-05-21 | 2020-10-09 | 张忠丽 | Arm venipuncture training model |
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Application publication date: 20191220 |
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