CN113607553A - Testing jig for cutting knife pin of anastomat - Google Patents
Testing jig for cutting knife pin of anastomat Download PDFInfo
- Publication number
- CN113607553A CN113607553A CN202110995772.3A CN202110995772A CN113607553A CN 113607553 A CN113607553 A CN 113607553A CN 202110995772 A CN202110995772 A CN 202110995772A CN 113607553 A CN113607553 A CN 113607553A
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- toughness
- pin
- test
- strength
- cutting knife
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- 238000012360 testing method Methods 0.000 title claims abstract description 174
- 238000005520 cutting process Methods 0.000 title claims abstract description 60
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 238000010586 diagram Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the field of performance testing of medical instruments, in particular to a testing jig for a cutting knife pin of an anastomat. The cutting tool pin is arranged on a test platform of the tensile machine and used for placing a cutting tool pin, and the cutting tool pin is positioned on a strength test tool and/or a toughness test tool on the test platform; the tensile machine is suitable for respectively pressing down the strength testing tool or the toughness testing tool so as to detect the strength or the toughness of the cutting knife pin. The invention tests the performance data of the cutting knife pin, effectively controls the strength and toughness of the cutting knife pin and improves the stability.
Description
Technical Field
The invention relates to the field of performance testing of medical instruments, in particular to a testing jig for a cutting knife pin of an anastomat.
Background
After the production of the cutting knife pin is completed, the strength and the toughness of the cutting knife pin need to be tested, the stress condition and the stress concentration of the cutting knife pin in the using process cannot be simulated by the existing performance test jig without the corresponding cutting knife pin, and quantized performance data of the cutting knife pin cannot be obtained through corresponding equipment, so that the qualified rate of the produced anastomat pin is low, and the stability of the produced anastomat pin is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: because there is no corresponding performance testing jig for the cutting pin, it is impossible to simulate the stress condition and stress concentration of the cutting pin during use, and also impossible to obtain quantitative performance data of the cutting pin.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention discloses a testing jig for a cutting knife pin of an anastomat, which is arranged on a testing platform of a tensile machine, is used for placing the cutting knife pin, and is positioned on a strength testing tool and/or a toughness testing tool on the testing platform; the tensile machine is suitable for respectively pressing down the strength testing tool or the toughness testing tool so as to detect the strength or the toughness of the cutting knife pin.
Further, the strength testing tool comprises a strength testing base positioned on the testing platform, at least one semicircular groove positioned on the surface of the strength testing base, and a gap vertically arranged in the middle of the groove; the inserting pieces are positioned at the gaps; the insert is provided with a round hole suitable for the cutting knife pin to horizontally pass through; the tensile machine is suitable for pressing the inserting piece downwards to move along the gap, so that the bottom of the cutting knife pin is abutted to the bottom of the semicircular groove, and the tensile machine is used for detecting the strength of the cutting knife pin.
Furthermore, the depth of the gap is larger than that of the semicircular groove, so that the bottom of the cutter pin at the gap is suspended.
Furthermore, the semicircular groove is a semicircular groove matched with the cutter pin; the recess be a plurality of and along the equidistant distribution of the length direction of gap.
Further, the toughness testing tool comprises a toughness testing base located on the testing platform, at least one cylindrical groove located on the surface of the toughness testing base, and a toughness testing pressing block located above the toughness testing base; the arc-shaped groove is formed in the pressing block, so that the top of the cutting knife pin is abutted to the arc-shaped groove in the pressing block and used for detecting the toughness of the cutting knife pin.
Further, the cylindrical groove is matched with the cutter pin; the cylindrical grooves are uniformly distributed on the surface of the toughness testing base.
Further, the depth of the cylindrical groove is smaller than the length of the cutter pin, so that the top of the cutter pin is arranged on the flexible base of the cutter pin.
Further, the tensile machine comprises the test platform, a moving platform positioned above the test platform and a pressure head positioned below the moving platform; the moving platform is suitable for driving the pressure head to move to the position above the strength testing tool or the toughness testing tool.
Further, the tensile machine also comprises a pressure sensor positioned between the pressure head and the moving platform.
The invention has the beneficial effects that: the testing jig for the cutting knife pin of the anastomat provided by the invention is used for downwards pressing the strength testing tool with the cutting knife pin by the tensile machine, and testing the strength performance of the cutting knife pin by the pressure sensor. The cutting knife pin is vertically placed into the toughness testing base and covered with the toughness testing pressing block, the toughness testing pressing block is pressed downwards by the tensile machine, and the toughness performance of the cutting knife pin is tested through the pressure sensor, so that the performance data of the cutting knife pin is quantized, and the stability and the qualification rate of products are improved.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of a strength test of a test fixture for a cutting knife pin of a stapler according to the present invention;
FIG. 2 is a schematic structural diagram of the strength testing fixture of FIG. 1;
FIG. 3 is a side view of the strength testing fixture of FIG. 2;
FIG. 4 is a schematic structural diagram of a toughness test of a test fixture for a cutting blade pin of the stapler according to the present invention;
FIG. 5 is a schematic structural diagram of the toughness testing tool shown in FIG. 4;
fig. 6 is a side view of the toughness testing tool of fig. 5.
The names and the numbers of the parts in the figure are respectively as follows: the device comprises a tensile machine 1, a moving platform 11, a pressure sensor 12, a pressure head 13, a testing platform 14, a cutting knife pin 2, a strength testing tool 3, a strength testing base 31, a semicircular groove 32, a gap 33, a strength testing insertion sheet 34, a round hole 35, a toughness testing tool 4, a toughness testing base 41, a cylindrical groove 42, a toughness testing pressing block 43 and an arc-shaped groove 44.
Detailed Description
The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.
As shown in fig. 1 to 6, the testing jig for the cutting blade pin of the anastomat of the invention is installed on a testing platform 14 of a tensile machine 1, is used for placing the cutting blade pin 2, and is positioned on a strength testing tool 3 and/or a toughness testing tool 4 on the testing platform 14; the tensile machine 1 is suitable for respectively pressing the strength testing tool 3 or the toughness testing tool 4 so as to detect the strength or the toughness of the cutting pin 2.
In this embodiment, the tensile machine 1 includes a testing platform 14, a moving platform 11, a cylinder pressure head 13 and a pressure sensor 12, wherein the testing platform 14 is installed at the bottom of the tensile machine 1 and used for placing the strength testing tool 3 and/or the toughness testing tool 4 horizontally, the moving platform 11 is installed above the testing platform 14 and used for driving the pressure head 13 part of the tensile machine 1 to move up, down, left and right, the cylinder pressure head 13 is installed below the moving platform, and the pressure sensor 12 is installed between the pressure head 13 and the moving platform 11 and used for testing the strength and toughness of the cutter pin 2; the moving platform 11 is suitable for driving the pressure head 13 to move to the position above the strength testing tool 3 or the toughness testing tool 4; the pressure sensor 12 presses the strength testing inserting sheet 34 downwards through the pressure head 13 to test the strength data of the cutter pin 2 or the pressure sensor 12 presses the toughness testing pressing block 43 downwards through the pressure head 13 to test the toughness data of the cutter pin 2.
As shown in fig. 1 to 3, a strength testing tool 3 is placed on a testing platform 14 of the tensile machine 1 for testing the strength of the cutter pin 2. The strength testing tool 3 comprises a strength testing base 31, and the strength testing base 31 is located above the testing platform 14 and horizontally placed.
As shown in fig. 2, the main body of the strength testing base 31 is a cuboid, and a plurality of semicircular grooves 32 with the same width as the cuboid and a gap 33 which spans all the semicircular grooves 32 and is located at the center of the upper surface of the cuboid are formed in the upper surface of the cuboid, so that the strength testing insert 34 and the cutting knife pin 2 to be tested are placed. At least one semicircular groove 32 of the surface of the strength testing base 31 for horizontally placing the cutter pin 2 in the semicircular groove 32. Optionally, the number of the semicircular grooves 32 is multiple, the width of each semicircular groove 32 is matched with that of the corresponding cutter pin 2, the depth of each semicircular groove 32 is equal to the radius of the corresponding cutter pin, and the length of each semicircular groove 32 is equal to the width of the corresponding strength test base 31, so that the cutter pins 2 can be conveniently and horizontally placed in the semicircular grooves 32.
In this embodiment, the surface of the strength testing base 31 is further provided with a gap 33, the gap 33 is vertically arranged at the center of the plurality of semicircular grooves 32, optionally, the gap 33 is a cuboid with a narrow width and the width of the gap 33 is larger than the thickness of the strength testing insert 34, and the height of the gap 33 is larger than the side length of the strength testing insert 34, so that the strength testing insert 34 is conveniently vertically inserted into the gap 33 and the strength testing insert 34 is suspended in the gap 33, and the strength value of the cutting pin 2 is not influenced by the testing jig in the testing process.
As shown in fig. 2-3, the strength testing tool 3 further comprises a strength testing insert 34, and the strength testing insert 34 is vertically placed in the gap 33, so as to test the strength of the cutter pin 2. Optionally, the strength test insertion piece 34 is a square round steel piece, so that the scratch in the installation operation process is avoided, and a round hole 35 is formed in the strength test insertion piece 34. Optionally, the diameter of the circular hole 35 matches that of the cutter pin 2 for placing the cutter pin 2 in the circular hole 35 of the strength test insert 34.
In this embodiment, when testing the strength of the cutter pin 2, the left and right lengths of the cutter pin 2 are inserted into the circular hole 35 of the strength testing insert 34, and then the strength testing insert 34 with the cutter pin 2 installed is placed in the gap 33 and the cutter pin 2 is horizontally placed in the semicircular groove 32 on the surface of the strength testing base 31, and the moving platform 11 of the tensile machine 1 moves to make the pressure head 13 of the tensile machine 1 align with the strength testing insert 34 and press down, so as to read out the critical value detected by the pressure sensor 12.
As shown in fig. 4-6, a toughness testing tool 4 is placed on the testing platform 14 of the tensile machine 1 for testing the toughness of the cutter pin 2. Toughness test fixture 4 is including toughness test base 41, toughness test base 41 is located test platform 14 tops and level and places, and toughness test base 41 main part is a great right angle U type groove, and the length and the width phase-match of right angle U type groove length and width and toughness test briquetting 43 for place toughness test briquetting 43.
As shown in fig. 4, the toughness testing base 41 has at least one cylindrical groove 42 on its surface for vertically placing the cutter pin 2 in the cylindrical groove 42. Optionally, the number of the cylindrical grooves 42 is multiple, the diameter of the cylindrical groove 42 is matched with that of the cutter pin 2, the depth of the cylindrical groove 42 is smaller than that of the cutter pin 2, so that the bottom of the cutter pin 2 is in contact with the bottom of the cylindrical groove 42, and the top of the cutter pin 2 is on the cutter pin toughness base 41.
As shown in fig. 5-6, the toughness testing tool 4 further includes a strength testing insertion sheet 34 and a toughness testing pressing block 43, and the toughness testing pressing block 43 is placed in a right-angled U-shaped groove of the toughness testing base 41, so as to test the toughness of the cutting pin 2. Optionally, toughness test briquetting 43 is for forming by two cuboid superpositions, and wherein the bottom is the shape fit in the right angle U type groove of fillet cuboid shape and toughness test base 41, and the length and the height in the right angle U type groove of toughness test base 41 are slightly good at to the length on one side of top cuboid is less, and the card takes out cutting tool round pin 2 on the notch on one side of the right angle U type groove of toughness test base 41, is convenient for take out after the toughness of cutting tool round pin 2.
As shown in fig. 6, the lower surface of the toughness testing pressing block 43 is provided with at least one arc-shaped groove 44, one surface of the arc-shaped groove is an arc and the other surface of the arc-shaped groove is a vertical plane, and the arc-shaped groove 44 corresponds to the cylindrical groove 42 on the toughness testing base 41 in a one-to-one manner and is used for abutting against the top position of the cutting knife pin 2 and preventing the cutting knife pin 2 from moving in the testing process.
In this embodiment, when testing the toughness of the cutting pin 2, the cutting pin 2 is vertically inserted into the cylindrical groove 42 on the toughness testing base 41, and then the toughness testing pressing block 43 is placed on the toughness testing base 41, at this time, the top position of the cutting pin 2 abuts against the arc-shaped groove 44, the moving platform 11 of the tensile machine 1 moves to make the pressure head 13 part of the tensile machine 1 press down the toughness testing pressing block 43, and the critical value detected by the pressure sensor 12 is read out.
In summary, the testing jig for the cutting knife pin of the anastomat is arranged on the testing platform of the tensile machine, is used for placing the cutting knife pin, and is positioned on the strength testing tool and/or the toughness testing tool on the testing platform; the tensile machine is suitable for respectively pressing down the strength testing tool or the toughness testing tool so as to detect the strength or the toughness of the cutting knife pin. The invention tests the performance data of the cutting knife pin, effectively controls the strength and toughness of the cutting knife pin and improves the stability.
In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. A test fixture is arranged on a test platform of a tensile machine and used for placing a cutting knife pin, and the test fixture is positioned on a strength test fixture and/or a toughness test fixture on the test platform; the tensile machine is suitable for respectively pressing down the strength testing tool or the toughness testing tool so as to detect the strength or the toughness of the cutting knife pin.
2. The test fixture of claim 1, wherein the strength test fixture comprises a strength test base located on the test platform, at least one semicircular groove located on the surface of the strength test base, and a gap vertically arranged in the middle of the groove; the inserting pieces are positioned at the gaps; the insert is provided with a round hole suitable for the cutting knife pin to horizontally pass through; the tensile machine is suitable for pressing the inserting piece downwards to move along the gap, so that the bottom of the cutting knife pin is abutted to the bottom of the semicircular groove, and the tensile machine is used for detecting the strength of the cutting knife pin.
3. The test fixture of claim 2, wherein the slot has a depth greater than the semi-circular recess to allow the cutter pin to hang at the bottom of the slot.
4. The test fixture of claim 2, wherein the semicircular groove is a semicircular groove that matches the cutter pin; the semicircular grooves are distributed at equal intervals along the length direction of the gap.
5. The test fixture of claim 1, wherein the toughness test fixture comprises a toughness test base located on the test platform, at least one cylindrical groove located on the surface of the toughness test base, and a toughness test pressing block located above the toughness test base; the arc-shaped groove is formed in the pressing block, so that the top of the cutting knife pin is abutted to the arc-shaped groove in the pressing block and used for detecting the toughness of the cutting knife pin.
6. The test fixture of claim 5, wherein the cylindrical recess is a cylindrical recess that mates with a cutter pin; the cylindrical grooves are uniformly distributed on the surface of the toughness testing base.
7. The test fixture of claim 6, wherein the depth of the cylindrical recess is less than the length of the cutter pin such that the cutter pin top is on the cutter pin compliant base.
8. The test fixture of claim 1, wherein the tensile machine comprises the test platform, a moving platform above the test platform, and a pressure head below the moving platform; the moving platform is suitable for driving the pressure head to move to the position above the strength testing tool or the toughness testing tool.
9. The test fixture of claim 1, wherein the tensile machine further comprises a pressure sensor between the indenter and the moving platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995772.3A CN113607553A (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995772.3A CN113607553A (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN113607553A true CN113607553A (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995772.3A Pending CN113607553A (en) | 2021-08-27 | 2021-08-27 | Testing jig for cutting knife pin of anastomat |
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| Country | Link |
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| CN (1) | CN113607553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879102A (en) * | 2023-09-06 | 2023-10-13 | 江苏博朗森思医疗器械有限公司 | Cutting anastomat detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202383016U (en) * | 2011-12-30 | 2012-08-15 | 东方蓝天钛金科技有限公司 | Relocatable dual-scissor tool |
| CN106442148A (en) * | 2016-08-24 | 2017-02-22 | 浙江昂星链条有限公司 | Fragility detector used for chain pin shaft |
| CN111879629A (en) * | 2020-07-15 | 2020-11-03 | 青岛征和工业股份有限公司 | Multifunctional pin shaft performance detection device |
| CN212622034U (en) * | 2020-07-17 | 2021-02-26 | 无锡博康医疗器械有限公司 | Novel cutting knife test fixture |
| CN218937972U (en) * | 2021-08-27 | 2023-04-28 | 江苏博朗森思医疗器械有限公司 | Testing jig for cutting knife pin of anastomat |
-
2021
- 2021-08-27 CN CN202110995772.3A patent/CN113607553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202383016U (en) * | 2011-12-30 | 2012-08-15 | 东方蓝天钛金科技有限公司 | Relocatable dual-scissor tool |
| CN106442148A (en) * | 2016-08-24 | 2017-02-22 | 浙江昂星链条有限公司 | Fragility detector used for chain pin shaft |
| CN111879629A (en) * | 2020-07-15 | 2020-11-03 | 青岛征和工业股份有限公司 | Multifunctional pin shaft performance detection device |
| CN212622034U (en) * | 2020-07-17 | 2021-02-26 | 无锡博康医疗器械有限公司 | Novel cutting knife test fixture |
| CN218937972U (en) * | 2021-08-27 | 2023-04-28 | 江苏博朗森思医疗器械有限公司 | Testing jig for cutting knife pin of anastomat |
Non-Patent Citations (1)
| Title |
|---|
| 国家技术监督局: "《销剪切试验方法：GB/T13633-92》", vol. 13633, 22 September 1992, 中国标准出版社, pages: 2 - 3 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116879102A (en) * | 2023-09-06 | 2023-10-13 | 江苏博朗森思医疗器械有限公司 | Cutting anastomat detection device |
| CN116879102B (en) * | 2023-09-06 | 2023-11-17 | 江苏博朗森思医疗器械有限公司 | Cutting anastomat detection device |
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