# US 10,478,219 B2 · Surgical access port > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,219 B2 - Document ID: US10478219B2 - Status: Granted - Kind: B2 - Application number: 15/802,213 - Filed: 2017-11-02 - Published: 2018-05-03 - Granted: 2019-11-19 - Earliest claimed: 2005-10-14 - Assignees: Applied Medical Resources Corporation - Applicants: Applied Medical Resources Corporation - Inventors: Kimball B. McGinley; Henry Kahle; Scott V. Taylor; Gary M. Johnson - Web page: https://patentgrep.com/patent/US10478219B2 ## CPC - A61B 17/3423: {Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247)} - A61B 17/0218: {for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 17/3462: {with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals (expandable cannulas A61B17/3417)} - A61M 13/003: {Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing} - A61B 17/3417: {Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating (syringe needles A61M5/32; dilators A61M29/00)} - A61B 17/3474: {Insufflating needles, e.g. Veress needles} - A61B 2017/0046: {with a releasable handle; with handle and operating part separable} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2017/3419: {Sealing means between cannula and body} - A61B 2017/3464: {with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers} - A61B 2017/347: {Locking means, e.g. for locking instrument in cannula} - A61M 39/223: {Multiway valves} - A61M 39/229: {Single-way cut-off valves} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A surgical access port or trocar is provided. The trocar has a trocar seal housing and a trocar cannula with an optical obturator insertable through the trocar seal housing and the trocar cannula. The trocar is configured to access a body cavity, to maintain positive pressure and to prevent loss of surgical insufflation gas used in laparoscopic procedures. The trocar seal housing can be releasably attached to the trocar cannula. The trocar seal housing may also have a shield and/or alignment channel that provide protection or assist in operation of instrument and zero seals housed in the trocar seal housing. ## Claims ### Claim 1 A surgical access port to access a body cavity and sealingly engage a surgical instrument inserted therethrough, the surgical access port comprising: a trocar seal housing comprising: an instrument seal configured to form a seal around the surgical instrument inserted through the surgical access port; a zero seal configured to form a seal when no surgical instrument is present in the surgical access port; a first slot and a second slot on opposing sides of the trocar seal housing; a trocar cannula comprising a first cantilever arm and a second cantilever arm extending proximally therefrom; a trocar lock releasably attaching the trocar seal housing to the trocar cannula, the trocar lock defined by the first cantilever arm and the second cantilever arm operationally engageable with the first slot and the second slot. ### Claim 2 (depends on 1) The surgical access port of claim 1, wherein the first cantilever arm and the second cantilever arm each comprise a proximal end and a hook positioned at the proximal end. ### Claim 3 (depends on 2) The surgical access port of claim 2, wherein the first slot and the second slot each comprise a ledge engageable by the hooks of the first and second cantilever arms to maintain an axial position of the trocar seal housing relative to the trocar cannula. ### Claim 4 (depends on 3) The surgical access port of claim 3, wherein the first cantilever arm and the second cantilever arm each comprise a resilient arm and wherein the first cantilever arm and the second cantilever arm each comprise a finger tab movable radially inward to disengage the hooks of the first cantilever arm and the second cantilever arm from the ledges of the first slot and the second slot. ### Claim 5 (depends on 1) The surgical access port of claim 1, wherein the trocar cannula comprises a sealing ring positioned to sealingly engage the trocar seal housing with the trocar seal housing attached to the trocar cannula. ### Claim 6 (depends on 5) The surgical access port of claim 5, wherein the sealing ring comprises an o-ring. ### Claim 7 (depends on 5) The surgical access port of claim 5, wherein the trocar cannula comprises an annular groove in which the sealing ring is received. ### Claim 8 A surgical access port to access a body cavity and sealingly engage a surgical instrument inserted therethrough, the surgical access port comprising: a trocar seal housing having a proximal end and a distal end and a longitudinal axis extending from the proximal end to the distal end, the trocar seal housing comprising: an end cap disposed at the proximal end of the trocar seal housing; an alignment channel extending distally from the end cap; a pendulous septum seal positioned distally of the alignment channel; a zero seal coaxially aligned with the septum seal and positioned distally of the septum seal; and an integral luer fitting in fluid communication with the distal end of the trocar seal housing, and further comprising a shield nested into the septum seal and pivotable with the septum seal. ### Claim 9 (depends on 8) The surgical access port of claim 8, wherein the end cap comprises a generally funneled entry at the proximal end of the trocar seal housing. ### Claim 10 (depends on 9) The surgical access port of claim 9, wherein the end cap further comprises a guard rail comprising a raised portion substantially outlining a periphery of the funneled entry. ### Claim 11 (depends on 8) The surgical access port of claim 8, further comprising a stopcock body fit into the luer fitting. ### Claim 12 (depends on 11) The surgical access port of claim 11, wherein the stopcock body comprises a barb configured to snap fit with the luer fitting. ### Claim 13 A surgical access port to access a body cavity and sealingly engage a surgical instrument inserted therethrough, the surgical access port comprising: a trocar seal housing configured to form a seal around the surgical instrument inserted through the surgical access port, the trocar seal housing comprising: a first slot on a side of the trocar seal housing; and a second slot on an opposing side of the trocar seal housing; a trocar cannula comprising: a sealing ring positioned to engage the trocar seal housing; a first cantilever arm extending proximally from the trocar cannula; and a second cantilever arm extending proximally from the trocar cannula; and a trocar lock releasably attaching the trocar seal housing to the trocar cannula, the trocar lock defined by the first cantilever arm and the second cantilever arm operationally engageable with the first slot and the second slot such that the first cantilever arm and the second cantilever arm are recessed from an outer surface of the trocar seal housing with the first cantilever arm and the second cantilever arm engaged with the first slot and the second slot. ### Claim 14 (depends on 13) The surgical access port of claim 13, wherein the first cantilever arm and the second cantilever arm each comprise a generally triangular latch head. ### Claim 15 (depends on 14) The surgical access port of claim 14, wherein the sealing ring and the triangular latch head of each of the first and the second cantilever arms are positioned in a generally horizontal plane. ### Claim 16 (depends on 14) The surgical access port of claim 14, wherein the generally triangular latch head of each of the first and the second cantilever arms comprises a flat bottom surface. ### Claim 17 A surgical access port to access a body cavity and sealingly engage a surgical instrument inserted therethrough, the surgical access port comprising: a trocar seal housing having a proximal end and a distal end and a longitudinal axis extending from the proximal end to the distal end, the trocar seal housing comprising: an end cap disposed at the proximal end of the trocar seal housing; an alignment channel extending distally from the end cap; a pendulous septum seal positioned distally of the alignment channel; a zero seal coaxially aligned with the septum seal and positioned distally of the septum seal; and an integral luer fitting in fluid communication with the distal end of the trocar seal housing, and wherein the alignment channel comprises an elongate tubular channel comprising a body portion having a first diameter and a distal end having an enlarged diameter relative to the first diameter. ### Claim 18 (depends on 17) The surgical access port of claim 17, wherein the alignment channel further comprises a proximal end proximal of the body portion, the proximal end of the alignment channel comprising a funneled entry.