CN218481343U

CN218481343U - Anti bending test device suitable for pipe

Info

Publication number: CN218481343U
Application number: CN202222798202.8U
Authority: CN
Inventors: 邹誉; 刘秦祺; 李庆山; 范丽丽; 尚源; 邵瑞涛
Original assignee: Yantai Saida Medical Technology Co ltd
Current assignee: Yantai Saida Medical Technology Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-02-14
Anticipated expiration: 2032-10-24

Abstract

The utility model provides an anti-bending test device suitable for a conduit, which comprises a fixed seat, wherein a test frame is fixedly connected on the fixed seat, and a lower water container is fixed on the test frame; the water inlet connector is arranged on the lower water container, the bottom of the lower water container is connected with a water pipe, the water pipe is connected with a first end of a to-be-tested guide pipe, the middle of the to-be-tested guide pipe is bent into a circular ring, and a second end of the to-be-tested guide pipe is connected with the water receiving container; still be provided with the fixation clamp on the fixing base, the fixation clamp is used for fixing the ring, the fixation clamp is including crossing the groove, it is provided with the arc recess to cross the groove bottom, it is provided with the telescopic bracing piece to cross the groove top, the bracing piece is used for supporting the top of the inner circle of ring, the arc recess is used for spacingly the bottom of ring. The problem of among the prior art pipe bending flow volume test inconvenient, inaccurate is solved.

Description

Anti bending test device suitable for pipe

Technical Field

The utility model belongs to the technical field of medical instrument, it relates to an anti bending test device suitable for pipe specifically to say so.

Background

The medical instrument standard file YY/T1287.3-2016 specifies the requirements of a craniocerebral external drainage catheter (hereinafter referred to as a catheter) which is expected to be used for craniocerebral puncture and lumbar puncture in a craniocerebral external drainage system, so as to ensure the safety and the effectiveness of the craniocerebral external drainage catheter in use. And a simple schematic is provided in appendix a, requiring that the fluid flow rate of the curved catheter lumen should be no less than 75% of the fluid flow rate of the straight catheter lumen when tested according to appendix a.

However, a simple schematic diagram is provided in the document, the document does not provide a practical usable testing device, and in the practical test, the circular ring can be inclined after the conduit is bent, or the circular ring is collapsed, and the bent shapes are not consistent in multiple tests, so that the conduit flow rate test is inaccurate.

Some catheter bending degree testing devices also exist in the market at present, for example, CN112213213A can enable a testing environment of a medical catheter to be tested to be similar to an internal environment of a human blood vessel when testing is performed, and CN207816735U passes a guide wire or a catheter through a gap between a first cylinder and a third cylinder or a gap between a second cylinder and a fourth cylinder to complete bending test of the medical interventional guide wire or catheter, but the difference between the structure and a schematic diagram provided in a medical instrument standard document is large, and current teaching, study and the like are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti bending test device suitable for pipe has solved among the prior art inconvenient, the unsafe problem of pipe bending flow test.

In a first aspect, the present invention provides an anti-bending test device suitable for a catheter, including:

the test device comprises a fixed seat, a test frame and a water discharge container, wherein the test frame is fixedly connected to the fixed seat; the lower water container comprises a water inlet interface, the bottom of the lower water container is connected with a water pipe, the water pipe is connected with a first end of the to-be-tested conduit, the middle part of the to-be-tested conduit is bent into a ring, and a second end of the to-be-tested conduit is connected with the water receiving container; the fixing seat is also provided with a fixing clamp used for fixing the circular ring, the fixing clamp comprises a through groove, the bottom of the through groove is provided with an arc-shaped groove, a telescopic supporting rod is arranged above the through groove, the supporting rod is used for supporting the top of the inner ring of the circular ring, and the arc-shaped groove is used for limiting the bottom of the circular ring;

the bracing piece includes the hollow quarter butt that cup joints around a plurality of, and preceding hollow quarter butt stretches into the hollow intracavity of the hollow quarter butt of back or preceding hollow quarter butt tail end cup joints the hollow cavity head end of the hollow quarter butt of back.

Preferably, the lower water container is provided with a sliding block, the side face of the test frame is provided with a sliding groove matched with the sliding block, and the sliding block is detachably fixed in the sliding groove through a bolt.

Preferably, an overflow pipe is arranged in the lower water container, the first end of the overflow pipe is flush with the preset water level, and the second end of the overflow pipe is connected with the overflow interface.

Preferably, the fixation clamp includes the riser, and the groove has been seted up to the riser up end, and the holding strip passes through bolted construction detachably to be fixed at the up end of riser to seal the top in groove.

Preferably, the height of the through groove is matched with the diameter of the conduit to be measured, and the width of the through groove is larger than the diameter of the conduit.

Preferably, the arc-shaped grooves comprise a plurality of arc-shaped grooves, the supporting rods comprise a plurality of arc-shaped grooves, and the supporting rods correspond to the arc-shaped grooves in a one-to-one mode and are respectively used for supporting the tops and the bottoms of the circular rings.

Preferably, the water receiving container is provided with a scale.

Compared with the prior art, the utility model provides a simple structure to feasible anti crooked testing arrangement of pipe sets up the arc recess that is used for spacing ring bottom crossing the groove bottom, can prevent that the ring from sliding, thereby when guaranteeing multiple measurements, the crooked degree of pipe is the same, and set up the bracing piece that is used for supporting the crooked ring of pipe on the fixation clamp, avoid the ring slope, flat phenomenon such as collapsing, the crooked degree of pipe is unchangeable in guaranteeing the test procedure, in addition, can pass through the height of adjustment bracing piece, thereby adopt different crooked degrees. Thereby the utility model provides an among the prior art pipe crooked flow test inconvenient, unsafe problem.

Drawings

Fig. 1 is a schematic perspective view of an anti-bending test device for a catheter according to an embodiment of the present invention;

fig. 2 is a left side view schematic diagram of a structure schematic diagram of an anti-bending test device in an embodiment of the present invention in actual use;

fig. 3 is a schematic top view of a bending resistance testing device suitable for use with a catheter in an embodiment of the invention;

fig. 4 is a schematic structural view of the support rod in the embodiment of the present invention.

Wherein the reference numbers are as follows:

10. a fixed seat; 20. a test jig; 21. a chute; 22. a slider; 30. a water drain container; 31. a water inlet interface; 32. a launching interface; 33. an overflow interface; 34. a water pipe; 35. a catheter to be tested; 36. a circular ring; 40. a fixing clip; 41. passing through a groove; 411. an arc-shaped groove; 42. a support bar; 421. a hollow short rod; 43. a fixing strip; 44. a bolt structure; 45. a vertical plate; 50. a water container.

Detailed Description

In order to more clearly illustrate technical features of the present invention, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an anti-bending test device suitable for a catheter, including: the testing device comprises a fixed seat 10, wherein a testing jig 20 is fixedly connected to the fixed seat 10, and a lower water container 30 is fixed on the testing jig 20; the lower water container 30 comprises a water inlet interface 31, the bottom of the lower water container 30 is connected with a water pipe 34, the water pipe 34 is connected with a first end of a conduit 35 to be tested, the middle part of the conduit 35 to be tested is bent into a circular ring 36, and a second end of the conduit 35 to be tested is connected with a water receiving container 50; still be provided with fixation clamp 40 on fixing base 10, fixation clamp 40 is used for fixed ring 36, fixation clamp 40 is including crossing groove 41, it is provided with arc recess 411 to cross groove 41 bottom, it is provided with telescopic bracing piece 42 to cross groove 41 top, bracing piece 42 is used for supporting the top of the inner circle of ring 36, arc recess 411 is used for spacing ring 36's bottom, the bracing piece includes a plurality of hollow quarter butt 421 that cup joint around, preceding hollow quarter butt 421 stretches into the hollow intracavity of next hollow quarter butt 421 or the hollow chamber head end of cup jointing at next hollow quarter butt 421 of preceding hollow quarter butt 421 tail end.

Compared with the prior art, the utility model provides a simple structure, and the anti crooked testing arrangement of feasible pipe, set up the arc recess 411 that is used for spacing ring 36 bottom crossing groove 41 bottom, can prevent that ring 36 from sliding, thereby when guaranteeing multiple measurements, the crooked degree of pipe 35 that awaits measuring is the same, and set up the bracing piece 42 that is used for supporting crooked ring 36 on fixation clamp 40, avoid ring 36 slope, flat phenomenon such as collapsing, guarantee that the crooked degree of pipe 35 that awaits measuring in the test procedure is unchangeable, in addition, can pass through the height of adjustment bracing piece 42, thereby adopt different crooked degrees. Thereby the utility model provides an among the prior art pipe crooked flow test inconvenient, unsafe problem.

Referring to the drawings in one particular embodiment, different degrees of flexion may be selected depending on the diameter of the catheter, testing requirements, etc., and correspond to different strut heights depending on the degree of flexion required. The quantitative standard can be made in advance, the length and the number of the hollow short rods 421 are selected to be suitable, and the bending degree corresponds to the number of the hollow short rods 421 connected end to end, so that the test is convenient.

Referring to fig. 1 and 2, preferably, the lower water container 30 is provided with a slide block 22, the side surface of the test rack 20 is provided with a slide groove 21 matched with the slide block 22, and the slide block 22 is detachably fixed in the slide groove 21 by bolts. The height of the lower water container 30 can be adjusted so that the pipe bending flow test can be performed for a plurality of times under different water pressures, and a more accurate test result can be obtained. The cross section of the slide groove 21 is formed in a shape that the inside is wide and the notch is narrow, so that the slide groove can be more firmly matched and the slide block 22 is prevented from being separated.

Referring to fig. 1 and 3, preferably, an overflow pipe is disposed in the lower water container 30, a first end of the overflow pipe is flush with the preset water level, and a second end of the overflow pipe is connected to the overflow port 33. When the water level is higher than the first end of the overflow pipe, the excess water flows out from the overflow port 33, thereby ensuring that the water container 30 is always at the preset water level in the same test process, and the water pressure flowing into the conduit 35 to be tested in the test process is always the same. The water outlet 32 is connected with the water pipe 34, and the water inlet 31 is connected with the water inlet channel.

Referring to fig. 1 and 2, preferably, the fixing clip 40 includes a vertical plate 45, a through groove 41 is opened on an upper end surface of the vertical plate 45, and the fixing strip 43 is detachably fixed on the upper end surface of the vertical plate 45 through a bolt structure 44 and closes above the through groove 41. This bolt arrangement 44 is simple and convenient. The ring 36 can be effectively fixed.

Referring to fig. 1 and 2, preferably, the height of the over-groove 41 is adapted to the diameter of the conduit, and the width of the over-groove 41 is larger than the diameter of the conduit 35 to be measured. The height of the over-groove 41 does not compress the conduit and the width of the over-groove 41 allows the plurality of rings 36 to pass through. After the conduit is bent a number of times, a number of rings 36 are obtained so that the flow of the conduit can be tested for a number of bends.

Preferably, the bottom of the through groove 41 is provided with a plurality of arc-shaped grooves 411, the top surface of the fixing strip 43 is provided with a plurality of support rods 42, and the plurality of support rods 42 correspond to the plurality of arc-shaped grooves 411 in a one-to-one manner and are used for supporting the top and the bottom of the plurality of circular rings 36.

Referring to fig. 1 and 2, the receptacle 50 is preferably provided with a scale. The water receiving container 50 can directly obtain the water flow of the conduit within a certain time, so as to calculate the flow of the conduit per minute.

The technical features of the present invention that are not described can be realized through or by the prior art, and are not described herein again, and certainly, the above description is not a limitation of the present invention, the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by the ordinary skilled person in the art in the essential scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. An anti-bending test device suitable for a guide pipe is a fixed seat (10), wherein a test frame (20) is fixedly connected to the fixed seat (10), and a lower water container (30) is fixed on the test frame (20); the water receiving container (30) comprises a water inlet connector (31), the bottom of the water receiving container (30) is connected with a water pipe (34), the water pipe (34) is connected with a first end of a to-be-detected guide pipe (35), the middle of the to-be-detected guide pipe (35) is bent into a circular ring (36), and a second end of the to-be-detected guide pipe (35) is connected with a water receiving container (50); still be provided with fixation clamp (40) on fixing base (10), fixation clamp (40) are used for fixing ring (36), its characterized in that includes:

the fixing clamp (40) comprises a through groove (41), an arc-shaped groove (411) is formed in the bottom of the through groove (41), a telescopic supporting rod (42) is arranged above the through groove (41), the supporting rod (42) is used for supporting the top of the inner ring of the circular ring (36), and the arc-shaped groove (411) is used for limiting the bottom of the circular ring (36);

the bracing piece (42) include a plurality of hollow quarter butt (421) that cup joint around, the former hollow quarter butt (421) stretch into the latter hollow cavity or the former of hollow quarter butt (421) the hollow quarter butt (421) tail end cup joints the latter the hollow cavity head end of hollow quarter butt (421).

2. The bend resistance test device for a conduit according to claim 1,

be provided with slider (22) on launching container (30), test jig (20) side be provided with slider (22) looks adaptation's spout (21), slider (22) pass through bolt detachably to be fixed in spout (21).

3. The bending resistance test device for a guide pipe according to claim 2, wherein an overflow pipe is provided in the lower water container (30), a first end of the overflow pipe is flush with a preset water level, and a second end of the overflow pipe is connected with an overflow port (33).

4. The bending resistance test device suitable for the guide pipe according to claim 3, wherein the fixing clip (40) comprises a vertical plate (45) and a fixing strip (43), the through groove (41) is formed in the upper end face of the vertical plate (45), and the fixing strip (43) is detachably fixed on the upper end face of the vertical plate (45) through a bolt structure (44) and closes the upper part of the through groove (41).

5. The bending resistance test device for a conduit according to claim 4, wherein the height of the over-groove (41) is adapted to the diameter of the conduit (35) to be tested, and the width of the over-groove (41) is larger than the diameter of the conduit.

6. The apparatus for testing bending resistance of a conduit according to claim 5, wherein the plurality of arc-shaped grooves (411) includes a plurality, the supporting rods (42) include a plurality, and the plurality of supporting rods (42) correspond to the plurality of arc-shaped grooves (411) in a one-to-one position, respectively, for supporting the top and bottom of the plurality of rings (36).

7. A bend-resistant test device adapted for use with a conduit as claimed in claim 6, wherein the receptacle is provided with a scale.