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. 2023 Jun 23;13:10201. doi: 10.1038/s41598-023-36165-6

Table 3.

Mean conduit flow rate at Input Pressure of 10 mmHg and 25 mmHg when R, R4/L, R5/L, and R6/L are held constant (no air-trap).

Conduit length (mm) Initial radius (mm) Constant radius flow (cc/min) Constant R4/L flow (cc/min) (% improvement) Constant R5/L flow (cc/min) (% improvement) Constant R6/L flow (cc/min) (% improvement)
Input pressure = 10 mmHg
 160 2 71 188 (+ 165%)****
3 251 349 (+ 39%)**
4 368 435 (+ 18%)**
5 458 492 (+ 7%)
 310 2 81 294 (+ 263%)**** 216 (+ 167%)**** 247 (+ 205%)****
3 294 406 (+ 38%)*** 321 (+ 9%) 308 (+ 5%)
4 373 411 (+ 10%) 387 (+ 4%) 369 (− 1%)
5 428 489 (+ 14%)*** 428 (0%) 383 (− 11%)
 620 2 26 166 (+ 538%)**** 154 (+ 492%)*** 129 (+ 396%)***
3 122 253 (+ 107%)*** 249 (+ 104%)*** 240 (+ 97%)**
4 149 310 (+ 108%)*** 275 (+ 85%)*** 256 (+ 72%)****
5 240 352 (+ 47%)** 327 (+ 36%) ** 320 (+ 33%)*
Input pressure = 25 mmHg
 160 2 169 398 (+ 136%)****
3 478 628 (+ 31%)***
4 513 636 (+ 24%)**
5 550 637 (+ 16%)**
 310 2 157 427 (+ 172%)**** 301 (+ 92%)** 285 (+ 82%)*
3 401 512 (+ 28%)** 377 (− 6%) 386 (− 4%)
4 475 575 (+ 21%)* 447 (− 6%) 487 (+ 3%)*
5 549 662 (+ 21%)*** 491 (− 11%)* 520 (− 5%)****
 620 2 68 451 (+ 563%)**** 364 (+ 435%)**** 301 (+ 343%)
3 267 520 (+ 95%)**** 476 (+ 78%)**** 433 (+ 62%)**
4 403 551 (+ 37%)**** 504 (+ 25%)** 509 (+ 26%)****
5 503 632 (+ 26%)** 592 (+ 18%)*** 522 (+ 4%)

*P < 0.05 vs. constant radius flow.

**P < 0.01 vs. constant radius flow.

***P < 0.001 vs constant radius flow.

****P < 0.0001 vs. constant radius flow.