CN214952950U - Medical catheter friction coefficient detection equipment - Google Patents
Medical catheter friction coefficient detection equipment Download PDFInfo
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- CN214952950U CN214952950U CN202120343858.3U CN202120343858U CN214952950U CN 214952950 U CN214952950 U CN 214952950U CN 202120343858 U CN202120343858 U CN 202120343858U CN 214952950 U CN214952950 U CN 214952950U
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- medical catheter
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Abstract
The utility model provides a medical catheter friction coefficient detection device, which comprises a bottom plate, vertical plates, a sleeve, a water injection pipe, an electric push rod, a stress block and a friction detection mechanism, wherein the sleeve is arranged between the two vertical plates, the friction detection mechanism comprises an upper computer and a pressure sensor, after the catheter is inserted into the sleeve, one side of the stress plate is connected with the end part of the catheter, the upper computer can control the electric push rod to push the stress block and the catheter to move, when the catheter moves, the speed of the movement is detected by the speed sensor, when the catheter moves at a constant speed, the pressure born by the pressure sensor on the stress block can be approximately equal to the dynamic friction force of the catheter, at the moment, the upper computer can calculate the friction coefficient of the catheter, the arranged water injection pipe can inject water into the sleeve, the moist environment of the urethra of a human body is simulated, the detection accuracy is ensured, the detected friction coefficient of the catheter can be used to assess whether the catheter production meets standards.
Description
Technical Field
The utility model relates to the technical field of medical instrument production, in particular to medical catheter coefficient of friction check out test set.
Background
The catheter is a medical instrument used clinically, is used for catheterization or indwelling catheterization of a patient who cannot urinate autonomously, can also be used for compression hemostasis and bladder irrigation in the urinary surgery, and needs to be in contact with a body tissue in the clinical use, so that the pain of the patient is determined by the friction coefficient of the outer wall of the catheter, the friction coefficient of the outer wall of the catheter is reduced to be as low as possible in order to reduce the pain of the patient as much as possible, and the conventional catheter basically detects whether the surface is flat or not through manual feeling, and the friction coefficient cannot be obtained visually, so that whether the product is qualified or not cannot be judged.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a medical catheter coefficient of friction check out test set, the surface coefficient of friction who measures the catheter that can be accurate to can simulate the moist environment of urethra, guarantee to detect the reliability of data.
The technical scheme of the utility model is realized like this:
a medical catheter friction coefficient detection device comprises a bottom plate, vertical plates, a sleeve, a water injection pipe, an electric push rod, a stress block and a friction detection mechanism, wherein the vertical plates are symmetrically arranged on the upper surface of the bottom plate, through holes are formed in the side walls of the vertical plates, the sleeve is connected between the two vertical plates and communicated with the through holes, an insertion rod is arranged on one side of the stress block, and the insertion rod is inserted into the end part of a catheter; the friction detection mechanism comprises an upper computer and a pressure sensor, the pressure sensor is arranged on the side surface of the stress block far away from the insertion rod, an output shaft of the electric push rod is in contact with one side of the stress block far away from the insertion rod, and the upper computer is electrically connected with the pressure sensor and the electric push rod; the sleeve pipe lateral wall is provided with the cavity, the cavity passes through apopore and the inside intercommunication of sleeve pipe, the water injection pipe sets up at the sleeve pipe surface to communicate with the cavity.
Preferably, still include the plummer, the plummer sets up on the bottom plate upper surface, electric putter sets up on the plummer.
Preferably, the fan is arranged on one of the vertical plate side walls in a sliding mode, the through hole is located on the sliding stroke of the fan, and the upper computer is electrically connected with the fan.
Preferably, the fan back is provided with the arch, the riser lateral wall is provided with the bar groove, the arch is arranged in the bar groove.
Preferably, the device further comprises a speed sensor, the speed sensor is arranged on the upper surface of the stress block, and the upper computer is electrically connected with the speed sensor.
Preferably, still including removing detection mechanism, remove detection mechanism includes infrared emission pipe and infrared receiving tube, infrared emission pipe sets up in atress piece bottom surface, infrared receiving tube removes to set up on the bottom plate upper surface to be located infrared emission pipe below, the host computer is connected with infrared receiving tube electricity.
Preferably, the mobile detection mechanism further comprises an indicator light and a sliding plate, the indicator light is arranged on the upper surface of the bottom plate, a sliding block is arranged on the bottom surface of the sliding plate, a sliding groove is formed in the upper surface of the bottom plate, the sliding block is located in the sliding groove, the infrared receiving tube is arranged on the upper surface of the sliding plate, and the upper computer is electrically connected with the indicator light.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a medical catheter coefficient of friction check out test set, insert the catheter in the sleeve pipe, and be connected the atress piece with the one end of catheter, then promote the atress piece through electric putter and drive the catheter and remove, the pressure sensor who sets up can detect electric putter's thrust information, when the catheter takes place to remove and at the uniform velocity removes, thrust approximately equals frictional force, thereby the host computer can calculate the coefficient of friction who obtains the catheter, and the water injection pipe that sets up can pour into moisture to the cover intraduct, be used for simulating the moist environment of urethra, guarantee the accuracy that coefficient of friction detected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic structural view of a first embodiment of a medical catheter friction coefficient detection device according to the present invention;
fig. 2 is a schematic structural diagram of a sleeve of a first embodiment of the medical catheter friction coefficient detection device of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 1;
fig. 4 is a schematic structural view of a second embodiment of the medical catheter friction coefficient detection device of the present invention;
in the figure, 1 is the bottom plate, 2 is the riser, 3 is the sleeve pipe, 4 is the water injection pipe, 5 is electric putter, 6 is the atress piece, 7 is the through-hole, 8 is the peg graft pole, 9 is the host computer, 10 is pressure sensor, 11 is the cavity, 12 is the apopore, 13 is the plummer, 14 is the fan, 15 is the arch, 16 is the bar groove, 17 is speed sensor, 18 is the infrared emission pipe, 19 is the infrared receiver tube, 20 is the pilot lamp, 21 is the slide, 22 is the slider, 23 is the spout.
Detailed Description
In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1-3, the utility model provides a medical catheter friction coefficient detection device, including bottom plate 1, riser 2, sleeve pipe 3, water injection pipe 4, electric putter 5, atress piece 6 and friction detection mechanism, riser 2 symmetry sets up on bottom plate 1, is provided with through-hole 7 on its lateral wall, sleeve pipe 3 connects between two riser 2, and with through-hole 7 intercommunication, atress piece 6 one side is provided with peg graft 8, peg 8 inserts the tip of catheter; the friction detection mechanism comprises an upper computer 9 and a pressure sensor 10, the pressure sensor 10 is arranged on the side surface of the stress block 6 far away from the insertion rod 8, an output shaft of the electric push rod 5 is in contact with one side of the stress block 6 far away from the insertion rod 8, and the upper computer 9 is electrically connected with the pressure sensor 10 and the electric push rod 5; the 3 lateral walls of sleeve pipe are provided with cavity 11, cavity 11 passes through apopore 12 and the inside intercommunication of sleeve pipe 3, water injection pipe 4 sets up at 3 surfaces of sleeve pipe to communicate with cavity 11.
The medical catheter friction coefficient check out test set of this embodiment, can be used for carrying out the detection of friction coefficient for the catheter that production was accomplished, wherein sleeve pipe 3 is used for simulating human urethra, when examining, insert the catheter in sleeve pipe 3 from riser 2 of one side, and wear out in riser 2 of opposite side, then insert the inserted bar 8 of atress board in the catheter is close to electric putter 5's one end, and guarantee the fixed of inserted bar 8 and catheter, start electric putter 5, electric putter 5 can promote the atress board and drive the catheter, when the catheter takes place to remove, pressure sensor 10 through setting up on the atress board can obtain catheter dynamic friction, and obtain friction coefficient with this calculation, host computer 9 can show friction coefficient, supply the testing personnel to examine whether the catheter accords with the production standard.
Specifically, the diameter of the insertion rod 8 of this embodiment is slightly larger than the diameter of the catheter, so as to ensure the fixation of the force-bearing block 6 and the catheter, and prevent the force-bearing plate from shaking to affect the detection result during the detection process, after the force-bearing block 6 is mounted on the catheter, the pressure data transmitted by the pressure sensor 10 is adjusted to 0, the output shaft of the electric push rod 5 can be controlled to slowly move towards the force-bearing block 6, so as to provide thrust for the force-bearing block 6, when the thrust is gradually increased and is larger than the friction force of the catheter, the catheter can move, the magnitude of the electric energy output to the electric push rod 5 can be controlled at this time, the uniform motion of the force-bearing plate and the catheter can be adjusted, at this time, the pressure detected by the pressure sensor 10 can be considered as the friction force on the outer surface of the catheter, the upper computer 9 can calculate the friction coefficient of the catheter according to the magnitude of the force, the pressure sensor 10 of the present embodiment is a pressure transmitter of the type SIN-P300.
Preferably, still include the plummer, the plummer sets up on bottom plate 1 upper surface, electric putter 5 sets up on the plummer.
The bearing table is used for improving the height of the electric push rod 5, so that the output shaft of the electric push rod 5 can be positioned at the central position of the stress block 6, the stress of the stress block 6 is ensured to be uniform,
preferably, still include fan 14, fan 14 slides and sets up on 2 lateral walls of one of them riser, through-hole 7 is located fan 14's slip stroke, host computer 9 is connected with fan 14 electricity, the 14 backs of fan are provided with arch 15, 2 lateral walls of riser are provided with bar groove 16, arch 15 is located bar groove 16.
The fan 14 that sets up can move through-hole 7 department after detecting the completion at every turn, bloies to sleeve 3 in to clear away remaining moisture in the sleeve 3, prevents that moisture from influencing the detection next time, and the bar groove 16 level on the riser 2 sets up, thereby fan 14 when sliding, can slide the position to through-hole 7 along bar groove 16.
Preferably, the device further comprises a speed sensor 17, wherein the speed sensor 17 is arranged on the upper surface of the stress block 6, and the upper computer 9 is electrically connected with the speed sensor 17.
The speed sensor 17 is arranged to detect the speed of the force-bearing block 6 during movement, and when the force-bearing block 6 moves at a constant speed, the upper computer 9 can equate the pressure detected by the pressure sensor 10 at that time to the friction force of the urinary catheter, and the speed sensor 17 of the embodiment is of the model number BENTLY 74712.
Referring to the second embodiment shown in fig. 4, the device further comprises a movement detection mechanism, the movement detection mechanism comprises an infrared emission tube 18 and an infrared receiving tube 19, the infrared emission tube 18 is arranged on the bottom surface of the stress block 6, the infrared receiving tube 19 is movably arranged on the upper surface of the bottom plate 1 and is located below the infrared emission tube 18, and the upper computer 9 is electrically connected with the infrared receiving tube 19.
The premise of acquiring the friction force is that the catheter moves, whether the speed of the catheter is uniform or not is detected after the movement, therefore, the pressure data detected by the pressure sensor 10 before the movement of the catheter is not effective, and in order to avoid the influence, the movement detection mechanism is arranged in the embodiment, when the force bearing block 6 is not moved, the infrared transmitting tube 18 is positioned above the infrared receiving tube 19, the infrared receiving tube 19 can receive infrared light, and sends the electric signal to the upper computer 9, at this time, the upper computer 9 can be in a standby state or a low power consumption state, when the force bearing block 6 moves to enable the infrared transmitting tube 18 to leave the upper part of the infrared receiving tube 19, the upper computer 9 loses the electric signal sent by the infrared receiving tube 19, and the operation state is recovered, the kinetic friction force of the catheter can be obtained after the catheter moves at a constant speed, and the infrared transmitting tube 18 and the infrared receiving tube 19 of the embodiment are realized by selecting infrared pair tubes with model number LHI 778.
Preferably, the movement detection mechanism further comprises an indicator lamp 20 and a sliding plate 21, the indicator lamp 20 is arranged on the upper surface of the bottom plate 1, a sliding block 22 is arranged on the bottom surface of the sliding plate 21, a sliding groove 23 is formed in the upper surface of the bottom plate 1, the sliding block 22 is located in the sliding groove 23, the infrared receiving tube 19 is arranged on the upper surface of the sliding plate 21, and the upper computer 9 is electrically connected with the indicator lamp 20.
Because the length of catheter may not be the same, so there will be difference in the position that atress piece 6 was located, therefore this embodiment has set infrared receiving tube 19 to slidable structure, installs atress piece 6 on the catheter after, removes slider 22, makes slider 22 remove in spout 23, and when infrared receiving tube 19 can receive the infrared light of infrared emission pipe 18 transmission, host computer 9 can control pilot lamp 20 and light to can realize the regulation to infrared receiving tube 19 position.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The medical catheter friction coefficient detection equipment is characterized by comprising a bottom plate, vertical plates, a sleeve, a water injection pipe, an electric push rod, a stress block and a friction detection mechanism, wherein the vertical plates are symmetrically arranged on the upper surface of the bottom plate, through holes are formed in the side walls of the vertical plates, the sleeve is connected between the two vertical plates and communicated with the through holes, and an insertion rod is arranged on one side of the stress block and inserted into the end part of a catheter; the friction detection mechanism comprises an upper computer and a pressure sensor, the pressure sensor is arranged on the side surface of the stress block far away from the insertion rod, an output shaft of the electric push rod is in contact with one side of the stress block far away from the insertion rod, and the upper computer is electrically connected with the pressure sensor and the electric push rod; the sleeve pipe lateral wall is provided with the cavity, the cavity passes through apopore and the inside intercommunication of sleeve pipe, the water injection pipe sets up at the sleeve pipe surface to communicate with the cavity.
2. The medical catheter friction coefficient detection device according to claim 1, further comprising a bearing table, wherein the bearing table is arranged on the upper surface of the base plate, and the electric push rod is arranged on the bearing table.
3. The medical catheter friction coefficient detection device according to claim 1, further comprising a fan, wherein the fan is slidably disposed on one of the vertical plate side walls, the through hole is located on a sliding stroke of the fan, and the upper computer is electrically connected with the fan.
4. The medical catheter friction coefficient detection equipment according to claim 3, wherein a protrusion is arranged on the back face of the fan, a strip-shaped groove is formed in the side wall of the vertical plate, and the protrusion is located in the strip-shaped groove.
5. The medical catheter friction coefficient detection device according to claim 1, further comprising a speed sensor, wherein the speed sensor is arranged on the upper surface of the force bearing block, and the upper computer is electrically connected with the speed sensor.
6. The medical catheter friction coefficient detection device according to claim 1, further comprising a movement detection mechanism, wherein the movement detection mechanism comprises an infrared emission tube and an infrared receiving tube, the infrared emission tube is arranged on the bottom surface of the stress block, the infrared receiving tube is movably arranged on the upper surface of the bottom plate and located below the infrared emission tube, and the upper computer is electrically connected with the infrared receiving tube.
7. The medical catheter friction coefficient detection device according to claim 6, wherein the movement detection mechanism further comprises an indicator light and a sliding plate, the indicator light is arranged on the upper surface of the base plate, a sliding block is arranged on the bottom surface of the sliding plate, a sliding groove is arranged on the upper surface of the base plate, the sliding block is located in the sliding groove, the infrared receiving tube is arranged on the upper surface of the sliding plate, and the upper computer is electrically connected with the indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120343858.3U CN214952950U (en) | 2021-02-04 | 2021-02-04 | Medical catheter friction coefficient detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120343858.3U CN214952950U (en) | 2021-02-04 | 2021-02-04 | Medical catheter friction coefficient detection equipment |
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| CN214952950U true CN214952950U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120343858.3U Active CN214952950U (en) | 2021-02-04 | 2021-02-04 | Medical catheter friction coefficient detection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965255A (en) * | 2022-06-06 | 2022-08-30 | 常熟迈得医疗器械技术服务有限公司 | Detection mechanism based on friction coefficient of catheter and detection method thereof |
| CN116136400A (en) * | 2023-03-18 | 2023-05-19 | 南通安琪医疗用品有限公司 | Polymer material catheter external diameter sampling detection equipment |
-
2021
- 2021-02-04 CN CN202120343858.3U patent/CN214952950U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965255A (en) * | 2022-06-06 | 2022-08-30 | 常熟迈得医疗器械技术服务有限公司 | Detection mechanism based on friction coefficient of catheter and detection method thereof |
| CN114965255B (en) * | 2022-06-06 | 2023-12-29 | 常熟迈得医疗器械技术服务有限公司 | Catheter friction coefficient-based detection mechanism and detection method thereof |
| CN116136400A (en) * | 2023-03-18 | 2023-05-19 | 南通安琪医疗用品有限公司 | Polymer material catheter external diameter sampling detection equipment |
| CN116136400B (en) * | 2023-03-18 | 2023-10-27 | 南通安琪医疗用品有限公司 | Polymer material catheter external diameter sampling detection equipment |
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