Surgical knotting method training method

Abstract

The invention provides a surgical knotting training method, and belongs to the technical field of medical education training. The problems that an existing knotting training method cannot accurately judge whether the knotting method is right or wrong and knotting counting cannot be carried out are solved. The knotting method training device is placed on a table top, then the semicircular metal arm of the knotting method training device is fixed to the horizontal position, an operation suture for knotting is tied to the suture knot fixing column in the middle of the semicircular metal arm, and then a trainee conducts knotting operation. When the two knotted hands enter the sensing range of the first light-sensitive switch and the second light-sensitive switch, the first light-sensitive switch and the second light-sensitive switch make sounds, meanwhile, the first electronic counter connected with the first light-sensitive switch and the second electronic counter connected with the second light-sensitive switch start counting, and the counting values are consistent; it is indicated that three points and one line are achieved in the knotting process, tension is balanced in the knotting process, and at the moment, the knotting method of the trainee is correct. The device is mainly used for knotting method training.

Description

Technical Field

[0001] The invention belongs to the technical field of medical education and training, and particularly relates to a surgical knotting training method. Background Art

[0002] Knotting is a very important technique in surgical operations. In current clinical teaching, students usually perform knotting training on fixed hard objects or use existing knotting training devices. However, practice has shown that both of these knotting training methods are not suitable for actual surgical operations. In actual surgical operations, knotting operations need to be performed on the human body. The tension during knotting is high, and some tissues such as skin mucosa, blood vessels, etc. are very brittle. When knotting, different strengths need to be used according to the actual texture. Too heavy a strength will cause tissue tearing, and too light a strength will make the knot difficult to tighten. In actual surgical operations, the knotting site is different and the tension is also different. The knotting operator will choose a more appropriate knotting method according to the different surgical sites, such as: deep knotting method, two-handed knotting method, one-handed knotting method, etc. Students need to consider which knotting method to use for knotting during clinical operations, but the existing knotting training methods cannot accurately judge whether the knotting method is right or wrong and cannot count knots. Summary of the invention

[0003] In view of this, the present invention aims to propose a surgical knotting training method to solve the problem that the existing knotting training method cannot accurately judge whether the knotting method is correct or not and cannot count the knots.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A surgical knot tying training method comprises the following steps:

[0006] Step 1: Place the knot-tying training device on the table, and then fix the semicircular metal arm of the knot-tying training device in a horizontal position;

[0007] Step 2: Tie the surgical suture for knotting on the knot fixing column in the middle of the semicircular metal arm;

[0008] Step 3: Turn on the first light switch and the second light switch at both ends of the semicircular metal arm, and then the trainee performs the knotting operation;

[0009] Step 4: When the knotted hands enter the sensing range of the first light switch and the second light switch, the first light switch and the second light switch make a sound;

[0010] Step 5: At the same time, the first electronic counter connected to the first light switch and the second electronic counter connected to the second light switch start counting, indicating that the three points are in a straight line when tying the knot. The values ​​of the first electronic counter and the second electronic counter are consistent, indicating that the tension is balanced when tying the knot. This indicates that the trainee's knotting method is correct.

[0011] Furthermore, the knotting training equipment also includes a metal column and an adjusting component, the semicircular metal arm is installed on the metal column through the adjusting component, the first electronic counter and the second electronic counter are both installed on the metal column, and the first photosensitive switch and the second photosensitive switch are respectively installed at both ends of the semicircular metal arm.

[0012] Furthermore, the first light sensing switch and the second light sensing switch transmit the collected position information of both hands to the first electronic counter and the second electronic counter respectively.

[0013] Furthermore, a base is installed at the bottom of the metal column.

[0014] Furthermore, the base is disc-shaped or a tripod stand.

[0015] Furthermore, the adjustment component includes a bolt and a fixing knob, the bolt is threadedly connected to the fixing knob, and the bolt passes through the metal column and is connected to the semicircular metal arm.

[0016] Furthermore, both the first electronic counter and the second electronic counter are powered by dry batteries.

[0017] Furthermore, the first light switch and the second light switch are both connected to a power adapter.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention measures the positions of both hands when tying a knot by two light-sensitive switches located in a plane, and judges whether the three-point straight line requirement is met when tying the knot. According to whether the values ​​of the electronic counter are synchronized, it is judged whether the tension balance requirement is met when tying the knot, and then the correctness of the knotting technique is judged.

[0020] 2. The detection of the number of knots in the present invention is accurate and convenient. By reading the value of the electronic counter within a certain period of time, the number of single knots during knotting is counted, and the scores are given according to the course assessment plan, thereby completing the assessment of surgical knotting methods.

[0021] 3. The raw materials used in the present invention are common and commonly used materials with low cost. When working, a power adapter with a civilian power output of 24V and a dry battery are used for energy supply, and the energy consumption is low.

[0022] 4. The present invention is easy to operate. During single training, one person can operate and count by himself. During assessment, students operate while teachers count. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 A three-dimensional schematic diagram of the knot tying training equipment of the present invention;

[0025] Figure 2 It is a schematic diagram of the device for vertical training;

[0026] Figure 3 It is a schematic diagram of the structure of the adjustment component.

[0027] 1-base, 2-metal column, 3-first electronic counter, 4-second electronic counter, 5-semicircular metal arm, 6-first light switch, 7-second light switch, 8-knot fixing column, 9-adjusting component, 10-bolt, 11-fixing knob. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0029] See also Figure 1-3 The present embodiment is described as a surgical knot tying training method, which comprises the following steps:

[0030] Step 1: Place the knot-tying training device on a table, and then fix the semicircular metal arm 5 of the knot-tying training device in a horizontal position;

[0031] Step 2: Tie the surgical suture for knotting on the knot fixing column 8 in the middle of the semicircular metal arm 5;

[0032] Step 3: Turn on the first light switch 6 and the second light switch 7 at both ends of the semicircular metal arm 5, and then the trainee performs a knot-tying operation;

[0033] Step 4: When the knotted hands enter the sensing range of the first light switch 6 and the second light switch 7, the first light switch 6 and the second light switch 7 make a sound;

[0034] Step 5: At the same time, the first electronic counter 3 connected to the first light switch 6 and the second electronic counter 4 connected to the second light switch 7 start counting, indicating that the three points are in a straight line when tying the knot. The values ​​of the first electronic counter 3 and the second electronic counter 4 are consistent, indicating that the tension is balanced when tying the knot. At this time, it means that the trainee's knotting method is correct.

[0035] The knotting training equipment also includes a metal column 2 and an adjusting component 9. The semicircular metal arm 5 is installed on the metal column 2 through the adjusting component 9. The first electronic counter 3 and the second electronic counter 4 are both installed on the metal column 2. The first photosensitive switch 6 and the second photosensitive switch 7 are respectively installed at both ends of the semicircular metal arm 5.

[0036] The first light sensor switch 6 and the second light sensor switch 7 transmit the collected information of the positions of the two hands to the first electronic counter 3 and the second electronic counter 4 respectively.

[0037] During training, the training equipment is placed on the desktop, the semicircular metal arm 5 is fixed in a horizontal position, and the surgical suture or training line for knotting is tied on the knot fixing column 8, the suture length is about 45 cm, and the power adapter is turned on. At this time, the first light switch 6 and the second light switch 7 enter the normally open state, and the trainee performs knotting operations, and can practice single-handed knotting, two-handed knotting, and forceps knotting. When the correct knotting technique is used, when the knot is tightened by both hands, if the hands reach the sensing range of the first light switch 6 and the second light switch 7, the first light switch 6 and the second light switch 7 make a clicking sound, and at the same time, the two first electronic counters 3 and the second electronic counters 4 start counting, indicating that the three points are in a straight line when the knot is tied. The consistent values ​​of the first electronic counter 3 and the second electronic counter 4 indicate that the tension is balanced when the knot is tied. Under the premise of the correct knotting technique, achieving these two points means that the knotting method is correct and qualified single knots and square knots are completed. If the knotting speed needs to be practiced, it is only necessary to record the values ​​of the electronic counters within a certain period of time.

[0038] There are two key points to ensure that the surgical knotting method completes the standard square knot. One is the three points in one line, and the other is the balance of tension. When using this equipment to practice knotting horizontally or vertically, you can monitor whether the knotting action meets these two key points, and indirectly judge whether the knotting is standard. The specific principle is: 1. The structural design ensures that the three points are in one line. The radius of the semicircular metal arm 5 is 20 cm. The first light sensor switch 6 and the second light sensor switch 7 are fixed at both ends of the semicircular metal arm 5. The U-shaped hook on the knot fixing column 8 is 1 / 4 of the distance from the semicircular metal arm 5. The fixed part is 25 cm, which is the suture fixing point. The length of the suture used for knotting is 45-50 cm. The midpoint of the suture is tied to the U-shaped hook. When tying a knot, the position where both hands hold the thread is about 20 cm away from the U-shaped hook. During the specific knotting training, under the premise of correct knotting movements, when the knotting hands reach the sensing range of the first light switch 6 and the second light switch 7 at both ends of the semicircular metal arm 5 by 5-10 cm, the first light switch 6 and the second light switch 7 emit a prompt sound to remind the trainee. At this time, the left and right hands, the U-shaped The fixed point of the suture on the back hook forms a straight line with three points, and the action meets the standard. Second, observe whether the values ​​of the first electronic counter 3 and the second electronic counter 4 connected to the first light switch 6 and the second light switch 7 are consistent to ensure balanced tension. After the trainee has achieved the straight line with three points, the first light switch 6 and the second light switch 7 emit a prompt sound, and the first electronic counter 3 and the second electronic counter 4 connected to the first light switch 6 and the second light switch 7 count. The counts of the two electronic counters are consistent, indicating that the movements of both hands are synchronized when tying a knot, and the tension is basically balanced. The relevant physics principle is that speed = distance / time v = s / t, the distances moved by the two hands when tying a knot are basically equal, and the knotting time is basically equal. It is concluded that the speed is basically the same, and the relationship between tension and speed is: speed = tension / mass * time, that is, v = F / m*t. When other variables are the same, the speed is proportional to the tension. Conclusion: The speed is basically consistent, and the tension is basically consistent and balanced. These two steps ensure the achievement of the two key points in the operation of the surgical knotting method, indicating that the knotting method is correct.

[0039] On the basis of surgical knotting method training using this equipment, surgical knotting speed training can be carried out, that is, under the premise of ensuring the correct knotting method, count the number of knots within a certain period of time, generally 10-15 seconds, and you only need to read the value of the electronic counter.

[0040] Furthermore, the equipment is placed on a table, the semicircular metal arm 5 is fixed in a vertical position by adjusting the component 9, and the surgical suture or training thread for tying knots is tied on the knot fixing column 8. The remaining operations are consistent with the horizontal training method. The difference is that in this method, both hands are used for knotting in a vertical plane, while in the horizontal position, both hands are used for knotting in a horizontal plane.

[0041] Furthermore, the model of the first light switch 6 and the second light switch 7 are both E3JKDS30M1, diffuse reflection type, with a sensing range of 5-30 cm and an adjustable sensing range. During training, the sensing range is adjusted to about 5-10 cm. When the trainee's hands reach the sensing range respectively, the first light switch 6 and the second light switch 7 emit a prompt sound to remind the trainee, and at the same time observe whether the connected first electronic counter 3 and the second electronic counter 4 are synchronized.

[0042] A base 1 is installed at the bottom of the metal column 2 .

[0043] The base 1 is in the shape of a disc or a tripod.

[0044] The adjusting component 9 includes a bolt 10 and a fixing knob 11, and the bolt 10 is threadedly connected to the fixing knob 11. The bolt 10 passes through the metal column 2 and is connected to the semicircular metal arm 5. When adjusting from horizontal position training to vertical position training, the fixing knob 11 is rotated first and then the semicircular metal arm 5 is rotated. When the semicircular metal arm 5 is rotated to the vertical position, the fixing knob 11 is rotated to fix the semicircular metal arm 5 in the vertical position.

[0045] The first electronic counter 3 and the second electronic counter 4 are both powered by a No. 5 dry battery, and the first light switch 6 and the second light switch 7 are both connected to a 24V power adapter, which has low energy consumption and low cost.

[0046] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A surgical knot-tying training method, characterized in that: It includes the following steps: Step 1: Place the knot-tying training device on a table, and then fix the semicircular metal arm (5) of the knot-tying training device in a horizontal position; Step 2: Tie the surgical suture for tying the knot on the knot fixing post (8) in the middle of the semicircular metal arm (5); Step 3: Turn on the first light switch (6) and the second light switch (7) at both ends of the semicircular metal arm (5), and then the trainee performs a knot-tying operation; Step 4: When the knotted hands enter the sensing range of the first light sensing switch (6) and the second light sensing switch (7), the first light sensing switch (6) and the second light sensing switch (7) emit a sound; Step 5: At the same time, the first electronic counter (3) connected to the first light switch (6) and the second electronic counter (4) connected to the second light switch (7) start counting, indicating that the three points are in a straight line when tying the knot. The values ​​of the first electronic counter (3) and the second electronic counter (4) are consistent, indicating that the tension is balanced when tying the knot. At this time, it is shown that the trainee's knotting method is correct.

2. A surgical knot-tying training method according to claim 1, characterized in that: The knotting training equipment also includes a metal column (2) and an adjusting component (9), the semicircular metal arm (5) is installed on the metal column (2) through the adjusting component (9), the first electronic counter (3) and the second electronic counter (4) are both installed on the metal column (2), and the first photosensitive switch (6) and the second photosensitive switch (7) are respectively installed at the two ends of the semicircular metal arm (5).

3. A surgical knot-tying training method according to claim 2, characterized in that: The first light sensing switch (6) and the second light sensing switch (7) transmit the collected position information of the two hands to the first electronic counter (3) and the second electronic counter (4) respectively.

4. A surgical knot-tying training method according to claim 2, characterized in that: A base (1) is installed at the bottom of the metal column (2).

5. A surgical knot-tying training method according to claim 4, characterized in that: The base (1) is in the shape of a disc or a tripod.

6. A surgical knot-tying training method according to claim 2, characterized in that: The adjusting component (9) comprises a bolt (10) and a fixing knob (11), wherein the bolt (10) is threadedly connected to the fixing knob (11), and the bolt (10) passes through the metal column (2) and is connected to the semicircular metal arm (5).

7. A surgical knot-tying training method according to claim 2, characterized in that: The first electronic counter (3) and the second electronic counter (4) are both powered by dry batteries.

8. A surgical knot-tying training method according to claim 2, characterized in that: The first light switch (6) and the second light switch (7) are both connected to a power adapter.

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