CN115248157A

CN115248157A - Comprehensive tester for injection needle and testing method thereof

Info

Publication number: CN115248157A
Application number: CN202210052238.3A
Authority: CN
Inventors: 夏平; 王根松
Original assignee: Weixia Electronic Technology Hangzhou Co ltd
Current assignee: Weixia Electronic Technology Hangzhou Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-10-28

Abstract

The invention discloses a comprehensive tester for an injection needle and a testing method thereof. The comprehensive tester comprises a printer, a controller fixedly installed in the printer, a first testing mechanism and a second testing mechanism, wherein the first testing mechanism and the second testing mechanism are arranged on the printer. The first testing mechanism includes a piercing structure, a rigidity detection structure, and a breaking force detection structure. The breaking force detection structure comprises a clamp b fixedly installed on the printer and a clamp c positioned below the clamp b. The second testing mechanism is used for testing the toughness of the injection needle and comprises a clamp structure, a positioning structure positioned on the clamp structure, a swinging structure fixedly installed at the position of one side corresponding to the positioning structure and a protractor fixedly installed on the printer. The comprehensive tester for the injection needle integrates the needle point puncture force test, the rigidity test, the fracture force and connection firmness test and the toughness test into a whole, has higher integration degree, and can meet the detection requirements of different quality indexes.

Description

Comprehensive tester for injection needle and testing method thereof

Technical Field

The invention relates to the technical field of injection needle testing, in particular to an injection needle comprehensive tester and an injection needle comprehensive testing method.

Background

In medical treatment, some medicaments do not obtain the drug effect like oral medicaments, so the drug effect can be exerted by directly injecting the medicaments into a human body, in the process, the injection treatment of the medicaments needs to be completed by virtue of an injection needle, and the injection needle directly acts on the human body, so before leaving a factory, a tester needs to be used for performance test to ensure that the injection needles put into use are qualified products, and unnecessary medical accidents are avoided.

However, when the current tester is used, the testing function is single, the integration degree is low, the detection requirements of different quality indexes cannot be met, the testing efficiency is reduced, and the popularization prospect is influenced.

Disclosure of Invention

Therefore, the injection needle comprehensive tester and the test method thereof are needed to solve the problems that when the tester is used, the test function is single, the integration degree is low, the detection requirements of different quality indexes cannot be met, the test efficiency is reduced, and the popularization prospect is influenced.

The comprehensive tester for the injection needle comprises a printer;

the comprehensive tester further comprises:

a controller fixedly mounted within the printer;

the first testing mechanism is arranged on the printer and comprises a piercing structure, a rigidity detecting structure and a fracture force detecting structure; the fracture force detection structure comprises a clamp b fixedly mounted on the printer and a clamp c positioned below the clamp b; and

the second testing mechanism is used for testing the toughness of the injection needle; the second testing mechanism comprises a clamp structure, a positioning structure, a swinging structure and a protractor, wherein the positioning structure is positioned on the clamp structure, the swinging structure is fixedly installed at the position of one side corresponding to the positioning structure, and the protractor is fixedly installed on the printer.

The comprehensive tester for the injection needle integrates needle point puncture force testing, rigidity testing, fracture force and connection firmness testing and toughness testing, is high in integration degree, and can meet the detection requirements of different quality indexes.

In one embodiment, a touch screen is fixedly installed on the printer in a penetrating mode; the controller comprises a CPU, a mainboard and a power supply;

the first testing mechanism is positioned between the touch screen and the second testing mechanism, and the second testing mechanism is positioned at a position of one side of the piercing structure, which is back to the fracture force detection structure; the rigidity detection structure is located at a position of one side of the fracture force detection structure facing the touch screen.

In one embodiment, the piercing structure comprises a vertical rail fixedly mounted on the printer, a sliding block slidably mounted through the vertical rail, a clamp fixedly mounted on the sliding block, and a detection assembly located below the clamp; the clamping piece is positioned at one side position of the vertical rail, which is back to the printer;

the rigidity detection structure comprises a tool rest, a dial indicator fixedly mounted on the tool rest, a clamp a positioned below the tool rest, and a span block positioned between the clamp a and the tool rest.

In one embodiment, the detection assembly comprises a load-carrying block fixedly arranged on the printer, a stress sensor fixedly arranged in the load-carrying block, and a positioning channel penetrating through the center of the load-carrying block;

the clamp a is fixedly connected with the printer; a notch is formed in the span block in a penetrating manner and used for positioning the assembly position of the injection needle; the centers of the longitudinal axes of the clamp b and the clamp c are arranged on the same vertical line.

Furthermore, the comprehensive tester also comprises a driving assembly fixedly arranged in the printer, wherein the driving assembly comprises a driving motor a, a driving motor b and a driving motor c;

the output end of the force measurement driving motor a is fixedly connected with the sliding block; the output end of the driving motor b is fixedly connected with the tool rest, and the tool rest is movably arranged at the position of one side of the printer back to the driving motor b; the clamp c is fixedly arranged at the output end position of the driving motor c; the clamp c is movably arranged at one side of the printer back to the driving motor c.

In one embodiment, the clamp structure comprises a concave base, a screw rod which is in threaded through connection at the position of two corresponding sides of the concave base, and a clamping plate which is vertically and fixedly connected at the position of the end part of the corresponding screw rod;

the positioning structure comprises a height block, four groups of needle cavities which are arranged in the height block in a penetrating mode, and an indicating sheet which is welded at the position, back to the needle cavities, of the height block.

Further, the screw rod is vertically arranged at the position of the side wall of the concave seat; the two groups of clamping plates are positioned in the concave seat, and anti-skidding grooves are formed in the positions, close to each other, of one side wall of each group of clamping plates;

the four groups of needle cavities are arranged in parallel along the horizontal direction; the indicating sheet and the height block are vertically arranged.

Furthermore, the swinging structure is arranged opposite to the needle cavity and comprises a motor fixedly arranged in the printer and a rotating shaft fixedly connected to the output end of the motor;

one end of the rotating shaft, which is back to the motor, is fixedly connected with the height block; the rotating shaft is vertically movably connected to the center of the bottom of the protractor in a penetrating mode.

A method of testing, comprising the steps of:

s1, fixing a syringe needle in a puncture test area, and moving the syringe needle downwards until the syringe needle penetrates through the imitation leather hide to carry out puncture test;

s2, fixing the injection needle in a rigidity testing area, and applying a downward acting force to the injection needle to enable the injection needle to deflect to form a certain included angle to perform rigidity testing;

s3, fixing the injection needle in a fracture force testing area, and testing fracture force and connection firmness by applying reverse acting force to the injection needle;

and S4, fixing the injection needle in a toughness test area, and applying deflection force to the injection needle to perform toughness test.

In one embodiment, the testing method is applied to the injection needle comprehensive tester.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the puncture force of the injection needle is detected based on the puncture structure, and the vertical movement of the injection needle in the puncture process can be ensured all the time in the puncture detection process, so that the puncture process is stable and the accuracy is high.

According to the invention, the rigidity performance of the injection needle is detected based on the rigidity detection structure, and the matched span blocks are selected according to the parameter indexes of different injection needles, so that the rigidity detection strength of the currently tested injection needle can be accurately positioned, the adaptability test of the injection needles with different specifications is adapted, the flexibility of operation is high, and the test error is effectively reduced.

According to the invention, the fracture resistance of the injection needle is tested based on the fracture force detection structure, so that the connection firmness of the injection needle can be reflected, and the test structure is simple and convenient to assemble.

According to the invention, the toughness of the injection needle is detected based on the second testing mechanism, the toughness is represented by the deflection angle of the injection needle, the deflection angle can be synchronously indicated while the injection needle clamp is stably stressed, the use is convenient, and the operation safety is high.

In conclusion, the comprehensive injection needle tester provided by the invention integrates the needle point puncture force test, the rigidity test, the fracture force and connection firmness test and the toughness test into a whole, has a higher integration degree, and can meet the detection requirements of different quality indexes.

Drawings

Fig. 1 is a schematic structural view of an injection needle comprehensive tester provided in embodiment 1 of the present invention.

Fig. 2 shows a partial cross-sectional view of fig. 1.

Fig. 3 shows an enlarged view of the piercing structure of fig. 1.

Fig. 4 is an enlarged view of the rigidity detection structure of fig. 1.

Fig. 5 is an enlarged view of the breaking force detecting structure of fig. 1.

Fig. 6 is a partially enlarged view of fig. 1.

Description of the main elements

1. A printer; 2. a touch screen; 3. a controller; 4. a piercing structure; 41. erecting a rail; 42. a slider; 43. a clamp; 44. a detection component; 441. a weight carrier; 442. a stress sensor; 443. a positioning channel; 5. a rigidity detection structure; 51. a tool holder; 52. a dial indicator; 53. a clamp a; 54. a stride block; 6. a fracture force detection structure; 61. a clamp b; 62. c, a clamp; 7. a clamp structure; 71. a concave seat; 72. a screw; 73. a splint; 8. a positioning structure; 81. a height block; 82. a needle lumen; 83. an indicator sheet; 9. a swing structure; 91. a motor; 92. a rotating shaft; 10. an angle gauge.

The present invention is described in further detail with reference to the drawings and the detailed description.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1-6, the present embodiment provides a comprehensive injector needle tester, which includes a printer 1, a controller 3 fixedly installed in the printer 1, a driving assembly fixedly installed in the printer 1, a first testing mechanism and a second testing mechanism installed on the printer 1.

The printer 1 is fixedly provided with a touch screen 2 in a penetrating manner. The touch screen 2 displays a real-time test structure of the injection needle, and a paper result is printed by combining the printer 1, so that the performance evaluation of the injection needle and the collection and recording of an authentication conclusion are facilitated. The controller 3 includes a CPU, a main board, and a power supply. In this embodiment, the controller 3 is used to coordinate the performance tests, and the CPU is used to load corresponding analysis software to analyze the detection data of the injection needle, so as to directly activate the performance evaluation structure corresponding to the current data. The driving assembly comprises a driving motor a, a driving motor b and a driving motor c. In the embodiment, the driving motor a, the driving motor b and the driving motor c are used as power detection parts for providing acting force for the penetration test, the rigidity test and the breaking force test respectively.

The first testing mechanism is used for testing the puncture force, the rigidity, the breaking force and the connection firmness of the injection needle. The first testing mechanism comprises a piercing structure 4, a rigidity detection structure 5 and a breaking force detection structure 6. The first testing mechanism is located between the touch screen 2 and the second testing mechanism, and the second testing mechanism is located at a position of one side of the piercing structure 4 facing away from the fracture force detecting structure 6. The rigidity detection structure 5 is located at a position of a side of the fracture force detection structure 6 facing the touch screen 2.

The piercing structure 4 includes an upright rail 41 fixedly mounted on the printer 1, a sliding block 42 slidably mounted through the upright rail 41, a clamping member 43 fixedly mounted on the sliding block 42, and a detecting assembly 44 located below the clamping member 43. The clamp 43 is located at a position of one side of the vertical rail 41, which faces away from the printer 1, and the output end of the force measurement driving motor a is fixedly connected with the slide block 42. The detecting unit 44 includes a weight block 441 fixedly installed on the printer 1, a stress sensor 442 fixedly installed in the weight block 441, and a positioning channel 443 provided through the center of the weight block 441. The positioning channel 443 provides a piercing location for the needle, thereby ensuring that the needle piercing process remains vertically mobile at all times.

The puncture test procedure was as follows: firstly, the injection needle is assembled on the clamping piece 43 to be fixed, the bionic skin is flatly laid on the weight bearing block 441, then the puncture test opening key is pressed down, the driving motor a is started to drive the sliding block 42 to vertically move downwards along the vertical rail 41, in the process, the clamping piece 43 drives the injection needle to move downwards along with the injection needle until the imitation hide is punctured, the injection needle is contacted with the imitation hide and continuously moves downwards until the injection needle is punctured, the stress sensor 442 is stressed and records the vertical state, and therefore the puncture test of the injection needle is achieved.

In this embodiment, the puncture force of the injection needle is detected based on the puncture structure 4, and the puncture process of the injection needle can be ensured to keep vertical movement all the time in the puncture detection process, so that the puncture process is stable and the accuracy is high.

The rigidity detection structure 5 includes a tool post 51, a dial indicator 52 fixedly mounted on the tool post 51, a jig a53 located below the tool post 51, and a span block 54 located between the jig a53 and the tool post 51. The dial gauge 52 uses rack and pinion transmission to change the linear displacement into the angular displacement of the pointer, thereby measuring the size and the form and position errors of the injection needle in the rigidity detection process. The output end of the driving motor b is fixedly connected with the tool rest 51, and the tool rest 51 is movably arranged at a position of one side of the printer 1, which faces away from the driving motor b. The gripper a53 is fixedly connected to the printer 1. A notch is formed through the span 54 for positioning the needle assembly.

The procedure for the stiffness test is as follows: according to the parameter index of the current injection needle, a corresponding span block 54 is selected, the span block 54 is placed on a tool rest 51, after the injection needle is placed in a notch of the span block 54, the height of the tool rest 51 is adjusted, so that the tool rest 51 approaches the injection needle, during testing, the tool rest 51 is driven by a driving motor b to move downwards until contacting the injection needle, and then continuously moves downwards to a distance matched with the span block 54, at the moment, the injection needle is subjected to a vertical downward acting force to be deviated to form a certain included angle, and the generated form and position included angle is measured through a dial indicator 52, so that the rigidity performance of the injection needle is reflected.

This embodiment, detect the rigidity performance of syringe needle based on rigidity detection structure 5, the span piece 54 of suit looks adaptation is selected according to the parameter index of different syringe needles to but the rigidity of the current test syringe needle of accurate positioning detects the dynamics, adapts to the adaptability test of different specification syringe needles, and the flexibility ratio of operation is high, has effectively reduced test error.

The breaking force detecting structure 6 includes a jig b61 fixedly mounted on the printer 1 and a jig c62 located below the jig b 61. The longitudinal axis centers of the jig b61 and the jig c62 are arranged on the same vertical line. The clamp c62 is fixedly installed at the output end position of the driving motor c, and the clamp c62 is movably disposed at a position of a side of the printer 1 facing away from the driving motor c. The clamp b61 is used for clamping an injection needle.

The breaking force test procedure is as follows: the injection needle is vertically arranged between the clamp b61 and the clamp c62 and double-end fixation is carried out, then the breaking force test opening key is pressed, the driving motor c is started to drive the clamp c62 to vertically move downwards, in the process, the anti-breaking performance of the injection needle is evaluated by the feedback of reverse acting force received by the injection needle, and therefore the connection firmness of the injection needle is reflected.

This embodiment detects structure 6 based on the fracture force and tests the fracture resistance ability of syringe needle to can reflect the firmness that the syringe needle was connected, and this test structure is simple and the assembly is convenient.

The second testing mechanism is used for testing the toughness of the injection needle. The second testing mechanism comprises a clamp structure 7, a positioning structure 8 positioned on the clamp structure 7, a swinging structure 9 fixedly installed at a position on one side corresponding to the positioning structure 8, and a protractor 10 fixedly installed on the printer 1. The clamp structure 7 comprises a concave base 71, screws 72 which are in threaded through connection at two corresponding sides of the concave base 71, and clamping plates 73 which are vertically and fixedly connected at the end positions of the corresponding screws 72. The screw 72 is vertically provided at a position of a side wall of the female socket 71. The two groups of clamping plates 73 are located in the concave seat 71, and anti-skidding grooves are formed in the positions, close to each other, of the side walls of the two groups of clamping plates 73. The positioning structure 8 comprises a height block 81, four groups of needle cavities 82 which are arranged in the height block 81 in a penetrating way, and an indicating sheet 83 which is welded at the position of the height block 81, which is opposite to the needle cavities 82. The four sets of needle chambers 82 are arranged in parallel in the horizontal direction, and the indicator piece 83 and the height block 81 are arranged vertically. The swing structure 9 provides the deflecting power of the injection needle, which is arranged facing away from the needle cavity 82. The swing structure 9 includes a motor 91 fixedly installed in the printer 1, and a rotating shaft 92 fixedly connected to an output end position of the motor 91. One end of the rotating shaft 92, which faces away from the motor 91, is fixedly connected with the height block 81. The angle gauge 10 is used to indicate the deflection angle of the injection needle. The rotating shaft 92 is vertically movably connected to the bottom center of the protractor 10 in a penetrating manner.

The procedure for the toughness test is as follows: the injection needle is placed between the two groups of clamping plates 73, the corresponding screw rod 72 is screwed, the distance between the two groups of clamping plates 73 is adjusted by transversely moving the screw rod 72 by taking the concave seat 71 as a supporting point until the injection needle is clamped, meanwhile, the top of the injection needle is assembled in the height block 81 through the needle cavity 82 and positioned and fixed, so that the injection needle clamp is stressed stably, the deflection angle is synchronously indicated by the aid of the indication sheet 83, the toughness test starting key is pressed, the motor 91 is started to drive the height block 81 fixed by the rotating shaft 92 to deflect, at the moment, the injection needle positioned and fixed in the needle cavity 82 deflects along with the indication sheet 83 to perform the toughness test, the current deflection angle is indicated by matching the protractor 10 and the indication sheet 83, and the toughness of the injection needle to be tested is reflected.

This embodiment detects the toughness of syringe needle based on second accredited testing organization, and the deflection angle through the syringe needle comes the characterization toughness to, when the syringe needle presss from both sides the dress atress stable, but synchronous instruction deflection angle, the degree of safety of convenient to use and operation is high.

In summary, the comprehensive injection needle tester of the present embodiment has the following advantages compared to the current tester: the comprehensive tester for the injection needle of the embodiment integrates needle point puncture force testing, rigidity testing, fracture force testing, connection firmness testing and toughness testing, has high integration degree, and can meet the detection requirements of different quality indexes.

Example 2

This example provides a test method applied to the injection needle complex tester described in example 1. The test method comprises the following steps:

s1, a puncture test is carried out by fixing a syringe needle at a puncture test area and moving the syringe needle downwards until the imitation hide is penetrated.

S2, fixing the injection needle in a rigidity testing area, and applying downward acting force to the injection needle to enable the injection needle to deflect to form a certain included angle to conduct rigidity testing.

The procedure for the rigidity test is as follows: according to the parameter index of the current injection needle, a corresponding span block 54 is selected, the span block 54 is placed on the knife rest 51, after the injection needle is placed in the notch of the span block 54, the height of the knife rest 51 is adjusted, so that the knife rest 51 approaches the injection needle, during testing, the knife rest 51 moves downwards under the driving of the driving motor b until contacting the injection needle, the needle continues to move downwards to a distance matched with the span block 54, at the moment, the injection needle is subjected to a vertical downward acting force to be deviated to form a certain included angle, and the generated form and position included angle is measured through the dial indicator 52, so that the rigidity performance of the injection needle is reflected.

S3, fixing the injection needle in a fracture force testing area, and testing fracture force and connection firmness by applying reverse acting force to the injection needle.

The breaking force test procedure was as follows: the injection needle is vertically arranged between the clamp b61 and the clamp c62 and double-end fixation is carried out, then the breaking force test opening key is pressed, the driving motor c is started to drive the clamp c62 to vertically move downwards, in the process, the anti-breaking performance of the injection needle is evaluated by the feedback of reverse acting force received by the injection needle, and therefore the connection firmness of the injection needle is reflected.

S4, fixing the injection needle in a toughness testing area, and applying deflection force to the injection needle to perform toughness testing.

The procedure for the toughness test is as follows: the injection needle is placed between the two groups of clamping plates 73, the corresponding screw 72 is screwed, the distance between the two groups of clamping plates 73 is adjusted by the transverse movement of the screw 72 by taking the concave seat 71 as a supporting point until the injection needle is clamped, meanwhile, the top of the injection needle is assembled in the height block 81 through the needle cavity 82 and is positioned and fixed, so that the clamping stress of the injection needle is stable, the deflection angle is synchronously indicated by the aid of the indicating sheet 83, the toughness test opening key is pressed, the motor 91 is started to drive the height block 81 fixed by the rotating shaft 92 to deflect, at the moment, the injection needle positioned and fixed in the needle cavity 82 deflects along with the indicating sheet 83 to perform the toughness test, the current deflection angle is indicated by combining the cooperation of the protractor 10 and the indicating sheet 83, and the toughness of the injection needle to be tested is reflected.

For the naming of each component referred to, the function described in the specification is used as a standard for naming without being limited by the specific term used in the present invention, and other terms may be used by those skilled in the art to describe each component name of the present invention.

Claims

1. The comprehensive tester for the injection needle comprises a printer (1);

it is characterized in that the comprehensive tester also comprises:

a controller (3) fixedly mounted within the printer (1);

a first testing mechanism arranged on the printer (1) and comprising a piercing structure (4), a rigidity detection structure (5) and a breaking force detection structure (6); the fracture force detection structure (6) comprises a clamp b (61) fixedly mounted on the printer (1) and a clamp c (62) positioned below the clamp b (61); and

the second testing mechanism is used for testing the toughness of the injection needle; the second testing mechanism comprises a clamp structure (7), a positioning structure (8) located on the clamp structure (7), a swinging structure (9) fixedly installed at the position of one side, corresponding to the positioning structure (8), of the positioning structure and a protractor (10) fixedly installed on the printer (1).

2. An injection needle comprehensive tester according to claim 1, characterized in that a touch screen (2) is fixedly installed on the printer (1) in a penetrating manner; the controller (3) comprises a CPU, a mainboard and a power supply;

the first testing mechanism is positioned between the touch screen (2) and the second testing mechanism, and the second testing mechanism is positioned at a position of one side of the piercing structure (4) opposite to the fracture force detection structure (6); the rigidity detection structure (5) is located at a position of one side, facing the touch screen (2), of the fracture force detection structure (6).

3. An injection needle comprehensive tester according to claim 1, characterized in that the piercing structure (4) comprises a vertical rail (41) fixedly mounted on the printer (1), a slide block (42) slidably mounted through the vertical rail (41), a clamp (43) fixedly mounted on the slide block (42), and a detection assembly (44) positioned below the clamp (43); the clamping piece (43) is positioned at a position of one side of the vertical rail (41) facing away from the printer (1);

the rigidity detection structure (5) comprises a tool rest (51), a dial indicator (52) fixedly mounted on the tool rest (51), a clamp a (53) positioned below the tool rest (51), and a span block (54) positioned between the clamp a (53) and the tool rest (51).

4. A needle integrity tester according to claim 3, characterized in that said detecting unit (44) comprises a weight carrier (441) fixedly mounted on said printer (1), a strain sensor (442) fixedly mounted within said weight carrier (441), a positioning channel (443) provided through a central position of said weight carrier (441);

the clamp a (53) is fixedly connected with the printer (1); a notch is formed in the span block (54) in a penetrating manner and is used for positioning the assembly position of the injection needle; the longitudinal axis centers of the clamp b (61) and the clamp c (62) are arranged on the same vertical line.

5. An injection needle complex tester according to claim 3, characterized in that the complex tester further comprises a drive assembly fixedly mounted in the printer (1) and comprising a drive motor a, a drive motor b and a drive motor c;

the output end of the force measurement driving motor a is fixedly connected with the sliding block (42); the output end of the driving motor b is fixedly connected with the tool rest (51), and the tool rest (51) is movably arranged at the position of one side of the printer (1) back to the driving motor b; the clamp c (62) is fixedly arranged at the output end position of the driving motor c; the clamp (c) is movably arranged at one side position of the printer (1) back to the driving motor c.

6. An injection needle comprehensive tester according to claim 1, characterized in that the clamp structure (7) includes a concave base (71), a screw (72) threaded through the concave base (71) at positions corresponding to both sides thereof, and a clamp plate (73) vertically fixedly connected to the end of the corresponding screw (72);

the positioning structure (8) comprises a height block (81), four groups of needle cavities (82) which are arranged in the height block (81) in a penetrating mode, and an indicating sheet (83) which is welded at the position, back to the needle cavities (82), of the height block (81).

7. An injection needle comprehensive tester according to claim 6, characterized in that the screw (72) is vertically provided at a position of a side wall of the female seat (71); the two groups of the clamping plates (73) are positioned in the concave seat (71), and anti-skidding grooves are formed in the positions, close to each other, of the side walls of the two groups of the clamping plates (73);

the four groups of needle cavities (82) are arranged in parallel along the horizontal direction; the indicating sheet (83) and the height block (81) are vertically arranged.

8. An injection needle comprehensive tester according to claim 6, characterized in that the swing structure (9) is disposed away from the needle chamber (82) and includes a motor (91) fixedly installed in the printer (1), a rotating shaft (92) fixedly connected at an output end position of the motor (91);

one end of the rotating shaft (92) back to the motor (91) is fixedly connected with the height block (81); the rotating shaft (92) is vertically movably connected to the center of the bottom of the protractor (10) in a penetrating mode.

9. A method of testing, comprising the steps of:

s1, fixing an injection needle in a puncture test area, and performing puncture test by downwards moving the injection needle until the injection needle penetrates through the imitation hide;

10. A testing method according to claim 9, characterized in that the testing method is applied to the integrated tester for injection needles according to any one of claims 1 to 8.