CN214793762U - Polymer conduit's trafficability characteristic testing arrangement - Google Patents
Polymer conduit's trafficability characteristic testing arrangement Download PDFInfo
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- CN214793762U CN214793762U CN202121207705.2U CN202121207705U CN214793762U CN 214793762 U CN214793762 U CN 214793762U CN 202121207705 U CN202121207705 U CN 202121207705U CN 214793762 U CN214793762 U CN 214793762U
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Abstract
The utility model discloses a trafficability characteristic testing device of polymer conduit, including fixer, ergograph, sway branch and simulation pipe, the fixer upper end is formed with the hole portion that supplies the pipe interlude and encircles the guide rail in the play pipe end of hole portion, sway the branch slidable mounting on the guide rail, the one end of simulation pipe is passed the hole portion and is adorned and clamped on swaying the branch, sway the branch and slide on the guide rail, make the simulation pipe that is located the hole portion be the angle bending with the simulation pipe that wears out the hole portion, the simulation pipe is used for simulating the complicated lumen in the human body, during the test, the pipe to be measured inserts in the simulation pipe, the sensor is used for gathering the resistance that the pipe to be measured meets in the process of passing through, the utility model provides a trafficability characteristic testing device can be effectual quantitative in vitro repeatable measurement pipe trafficability characteristic, simulate the arbitrary angle that probably exists in the human body and need not rely on the help of biological sample such as human body or animal, the possible problems were tested without damaging the human body.
Description
Technical Field
The utility model belongs to pipe trafficability characteristic measurement tool design field for the medical treatment especially relates to a trafficability characteristic testing arrangement of polymer pipe.
Background
The conventional medical polymer catheter is small in size, needs to be conveyed to a working area through a conveying system in the using process, is often bent at a large angle due to a complex human body structure, is very easy to cause the catheter to be unusable due to insufficient trafficability, is particularly important when the catheter is quantitatively detected to be bent at the large angle, and does not have products with the same type or similar functions on the market at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a trafficability characteristic testing arrangement of polymer pipe can be under external environment, the fast accurate trafficability characteristic quantitative determination result that obtains the arbitrary angle of pipe.
In order to solve the above problem, the technical scheme of the utility model is that:
a polymeric conduit passability testing device comprises a fixer, a dynamometer, a swinging branch and a simulation conduit;
the upper end of the fixer is provided with a hole part for inserting the guide pipe and a guide rail surrounding the pipe outlet end of the hole part, and the bottom end of the fixer is provided with a clamping groove along the insertion direction of the guide pipe;
the force measuring device comprises a force measuring device body and a sensor protruding out of the head of the force measuring device body, the force measuring device is embedded into the clamping groove, the sensor is installed on the pipe inlet end side of the hole part, and the sensor is stressed along the insertion direction of the conduit;
the swing branch can be slidably arranged on the guide rail;
one end of the simulation catheter penetrates through the hole part and is clamped on the swing branch, the swing branch slides on the guide rail, so that the simulation catheter positioned in the hole part and the simulation catheter penetrating out of the hole part are bent at an angle, and the simulation catheter is used for simulating a complex lumen in a human body;
during testing, a conduit to be tested is inserted into the simulation conduit, and the sensor is used for acquiring resistance encountered by the conduit to be tested in the passing process.
Preferably, the swing branch comprises a sliding block, a clamping device and a positioning screw rod, a coupling sliding groove matched with the guide rail is formed in the bottom end of the sliding block, the sliding block is slidably mounted on the guide rail through the coupling sliding groove, the clamping device is mounted at one end, close to the hole, of the sliding block, the clamping device comprises an upper clamping piece, a lower clamping piece and a fastener for providing clamping force, the clamping device is used for clamping the simulation conduit, the positioning screw rod is arranged at one end, far away from the hole, of the sliding block, and the positioning screw rod is used for fixing the position of the sliding block.
Preferably, the swing branch further comprises a handle, and the handle is mounted at the top of the sliding block.
Preferably, an observation window is arranged at the position, corresponding to the installation position of the dynamometer body, of the clamping groove, and numerical values on the dynamometer body are read through the observation window.
Preferably, the guide rail is a disc guide rail, the guide rail further comprises a dial matched with the disc guide rail, and the dial is used for indicating an angle.
Preferably, the inlet pipe end of the hole part is trumpet-shaped.
Preferably, the draw-in groove includes ergograph body draw-in groove and sensor draw-in groove, the sensor draw-in groove is T type draw-in groove, just the terminal surface laminating of sensor the lateral wall of sensor draw-in groove.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
1) the utility model provides a trafficability characteristic testing device of a polymer conduit, which comprises a fixer, a force measuring device, a swinging branch and a simulation conduit, wherein the upper end of the fixer is provided with a hole part for the conduit to be inserted and a guide rail surrounding the outlet end of the hole part, the bottom end of the fixer is provided with a clamping groove along the insertion direction of the conduit, the force measuring device is embedded in the clamping groove, the swinging branch is slidably arranged on the guide rail, one end of the simulation conduit penetrates through the hole part and is clamped on the swinging branch, the swinging branch slides on the guide rail, so that the simulation conduit positioned in the hole part and the simulation conduit penetrating out of the hole part are bent at an angle, the simulation conduit is used for simulating a complex lumen in a human body, during testing, the conduit to be tested is inserted into the simulation conduit, a sensor is used for collecting the resistance encountered by the conduit to be tested in the trafficability testing device, the trafficability characteristic testing device of the polymer conduit can effectively and quantitatively measure the trafficability of the conduit in vitro and repeatedly, the method simulates any angle possibly existing in the human body, does not need to use biological samples such as the human body or animals, and tests out possible problems under the condition of not damaging the human body.
Drawings
Fig. 1 is an assembly schematic view of a device for testing the passing ability of a polymer conduit according to an embodiment of the present invention;
fig. 2 is an assembled schematic view of a device for testing the passing ability of a polymer conduit according to an embodiment of the present invention;
FIG. 3 is a perspective view of the holder;
fig. 4 is a schematic structural diagram of the rocking branches.
Description of reference numerals:
1: a holder; 11: a hole portion; 12: a guide rail; 121: a dial scale; 13: a card slot; 131: a dynamometer body clamping groove; 1311: an observation window; 132: a sensor card slot; 2: a force measuring device; 21: a force-measuring device body; 22: a sensor; 3: swinging branches; 31: a slider; 311: a coupling chute; 32: a clamping device; 321: an upper clamping piece; 322: a lower clamping piece; 323: a fastener; 33: positioning a screw rod; 34: a handle.
Detailed Description
The passing test device for polymer conduit according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Referring to fig. 1 to 4, the present embodiment provides a polymeric catheter passability testing apparatus, which includes a holder 1, a force measuring device 2, a swing arm 3 and a simulation catheter (not shown);
referring to fig. 2 and 3, a hole 11 for inserting a catheter and a guide rail 12 surrounding an outlet pipe end of the hole 11 are formed at the upper end of the holder 1, in the present embodiment, referring to fig. 2, a T-shaped boss is provided on the upper surface of the holder 1, a left-right through channel is opened from the left side wall of the T-shaped boss, the channel is the hole 11, and referring to fig. 3, the inlet pipe end of the hole 11 is horn-shaped, and the horn-shaped mouth can clamp the handle and the connector of the catheter, simulating a handheld state; in this embodiment, the guide rail 12 is a circular guide rail, which takes the end of the hole 11 as the center of a circle and takes the hole 11 as the radius, the guide rail 12 further includes a scale 121 matched with the circular guide rail, and the scale 121 is used for indicating the angle; referring to fig. 1, a clamping groove 13 is formed in the bottom end of the holder 1 along the insertion direction of the catheter, an observation window 1311 is formed in a position corresponding to the installation position of the clamping groove 13 and the force-measuring device body 21, the numerical value on the force-measuring device body 21 is read through the observation window 1311, the clamping groove 13 comprises a force-measuring device body clamping groove 131 and a sensor clamping groove 132, the sensor clamping groove 132 is a T-shaped clamping groove, the end face of a sensor 22 is attached to the side wall of the sensor clamping groove 132, the force-measuring device 2 is inserted into the clamping groove 13 along the direction indicated by the arrow in fig. 1, and the assembly of the force-measuring device 2 and the holder 1 is completed;
referring to fig. 1, the force measuring device 2 comprises a force measuring device body 21 and a sensor 22 protruding from the head of the force measuring device body 21, the force measuring device 2 is embedded in the clamping groove 13, the sensor 22 is installed on the pipe inlet end side of the hole part, the sensor 22 is stressed along the pipe insertion direction, and the force measuring device 2 can measure static pressure by means of the sensor 22;
referring to fig. 2, the swing branch 3 is slidably mounted on the guide rail 12, referring to fig. 4, in the present embodiment, the swing branch 3 includes a sliding block 31, a clamping device 32 and a positioning screw 33, a coupling sliding slot 311 matching with the guide rail 12 is formed at a bottom end of the sliding block 31, the sliding block 31 is slidably mounted on the guide rail 12 through the coupling sliding slot 311, the clamping device 32 is mounted at one end of the sliding block 31 close to the hole 11, the clamping device 32 includes an upper clamping piece 321, a lower clamping piece 322 and a fastening piece 323 providing a clamping force, in the present embodiment, the fastening piece 323 is fastened by two screws, the clamping device 32 is used for clamping a simulated catheter, the positioning screw 33 is disposed at one end of the sliding block 31 far from the hole 11, and the positioning screw 33 is used for tightening after the swing branch 3 is adjusted to a desired angle, so that the swing branch 3 is fixed at the current angle; as a preferable example of the present embodiment, the swing branch 3 further includes a handle 34, the handle 34 is installed on the top of the sliding block 31, and the handle 34 is used for holding the sliding swing branch 3 in hand when adjusting the angle;
one end of the simulation conduit passes through the hole part 11 and is clamped on the swing branch 3, in the embodiment, one end of the simulation conduit passes through the hole part 11 and is clamped on the clamping device 32 of the swing branch 3, the upper clamping piece and the lower clamping piece of the clamping device 32 clamp the simulation conduit, the swing branch 3 slides on the guide rail 12, so that the simulation conduit positioned in the hole part 11 and the simulation conduit penetrating out of the hole part 11 are bent at an angle, and the simulation conduit is used for simulating a complex lumen in a human body;
during testing, a conduit to be tested is inserted into the simulation conduit, the conduit to be tested is inserted from the left end of the hole part 11, the conduit to be tested moves inwards along the simulation conduit until the conduit to be tested pushes against the clamping device 32 of the swing branch 3, the simulation conduit is bent at an angle and meets resistance in the insertion and moving process, tension in the conduit insertion direction is further given to the fixing device 1, the fixing device 1 transmits the force to the sensor 22, the sensor 22 is used for collecting the resistance met by the conduit to be tested in the passing process and reflecting the resistance on a digital display screen of the force measuring device body 21, data are directly read through the observation window 1311, and peak force measured in the whole process of the insertion of the conduit to be tested is recorded.
When the test of the permeability of the conduit is carried out, the fixer 1, the force measuring device 2 and the swing branch 3 are assembled, the swing branch 3 is embedded into the guide rail 12 and can slide along the disc guide rail, and the sensor 22 at the head of the force measuring device 2 is embedded into the T-shaped clamping groove, so that the force measuring device is only stressed by the sensor 22 at the head along the insertion direction of the conduit. The handle 34 is held, the swing branch 3 is rotated, the swing branch 3 is adjusted to a required angle, the positioning screw 33 is screwed, the swing branch 3 is fixed at the required angle and cannot move, the simulation conduit penetrates through the hole part 11 from left to right and is clamped into the upper clamp and the lower clamp of the clamping device 32, the left end of the simulation conduit is flush with or slightly exposed out of the hole part 11, the conduit to be tested is inserted into the simulation conduit, the conduit to be tested is inserted from the left end of the hole part 11 and moves inwards along the simulation conduit until the simulation conduit pushes against the clamping device 32 of the swing branch 3, and the peak force measured by the force measuring device 2 in the whole process is read.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. The device for testing the trafficability of the polymer conduit is characterized by comprising a fixer, a dynamometer, a swinging branch and a simulation conduit;
the upper end of the fixer is provided with a hole part for inserting the guide pipe and a guide rail surrounding the pipe outlet end of the hole part, and the bottom end of the fixer is provided with a clamping groove along the insertion direction of the guide pipe;
the force measuring device comprises a force measuring device body and a sensor protruding out of the head of the force measuring device body, the force measuring device is embedded into the clamping groove, the sensor is installed on the pipe inlet end side of the hole part, and the sensor is stressed along the insertion direction of the conduit;
the swing branch can be slidably arranged on the guide rail;
one end of the simulation catheter penetrates through the hole part and is clamped on the swing branch, the swing branch slides on the guide rail, so that the simulation catheter positioned in the hole part and the simulation catheter penetrating out of the hole part are bent at an angle, and the simulation catheter is used for simulating a complex lumen in a human body;
during testing, a conduit to be tested is inserted into the simulation conduit, and the sensor is used for acquiring resistance encountered by the conduit to be tested in the passing process.
2. The device for testing the passing ability of the polymer conduit according to claim 1, wherein the swing arm comprises a slider, a clamping device and a positioning screw, a coupling sliding groove matched with the guide rail is formed at the bottom end of the slider, the slider is slidably mounted on the guide rail through the coupling sliding groove, the clamping device is mounted at one end of the slider close to the hole, the clamping device comprises an upper clamping piece, a lower clamping piece and a fastener for providing clamping force, the clamping device is used for clamping the simulation conduit, the positioning screw is arranged at one end of the slider far away from the hole, and the positioning screw is used for fixing the position of the slider.
3. The polymer conduit passability testing apparatus of claim 2, wherein the swing arm further comprises a handle mounted on a top of the sliding block.
4. The device for testing the passing ability of the polymer conduit according to claim 1, wherein an observation window is formed at a position corresponding to the installation position of the force-measuring device body, and the value on the force-measuring device body is read through the observation window.
5. The device for testing the transit of a polymeric catheter according to claim 1, wherein the guide is a circular disc guide, and the guide further comprises a scale for indicating an angle, the scale being matched with the circular disc guide.
6. The device for testing the passing ability of a polymer conduit according to claim 1, wherein the inlet end of the hole portion is formed in a trumpet shape.
7. The device for testing the passing ability of the polymer conduit according to claim 1, wherein the clamping groove comprises a dynamometer body clamping groove and a sensor clamping groove, the sensor clamping groove is a T-shaped clamping groove, and the end surface of the sensor is attached to the side wall of the sensor clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121207705.2U CN214793762U (en) | 2021-06-01 | 2021-06-01 | Polymer conduit's trafficability characteristic testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121207705.2U CN214793762U (en) | 2021-06-01 | 2021-06-01 | Polymer conduit's trafficability characteristic testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214793762U true CN214793762U (en) | 2021-11-19 |
Family
ID=78699660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121207705.2U Active CN214793762U (en) | 2021-06-01 | 2021-06-01 | Polymer conduit's trafficability characteristic testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214793762U (en) |
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2021
- 2021-06-01 CN CN202121207705.2U patent/CN214793762U/en active Active
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