# US 10,869,593 B2 · Endoscopic systems, devices, and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,593 B2 - Document ID: US10869593B2 - Status: Granted - Kind: B2 - Application number: 16/577,982 - Filed: 2019-09-20 - Published: 2020-01-09 - Granted: 2020-12-22 - Earliest claimed: 2015-09-28 - Assignees: Bio-Medical Engineering (HK) Limited - Applicants: Bio-Medical Engineering (HK) Limited - Inventors: Chung-Kwong Yeung; Wing Fai Lam - Web page: https://patentgrep.com/patent/US10869593B2 ## CPC - A61B 1/00082: {Balloons} - A61B 1/00094: {Suction openings} - A61B 1/00135: {Oversleeves mounted on the endoscope prior to insertion} - A61B 1/00148: {using anchoring means} - A61B 1/00154: {using guiding arrangements for insertion} - A61B 1/00156: {using self propulsion} - A61B 1/008: Articulations - A61B 10/04: Endoscopic instruments, e.g. catheter-type instruments - A61B 10/06: Biopsy forceps {, e.g. with cup-shaped jaws} - A61M 25/1002: {characterised by balloon shape (A61M25/1006, A61M25/1009 take precedence)} - A61B 1/00006: {of control signals} - A61B 1/00087: {Tools (A61B17/00234 takes precedence)} - A61B 1/015: Control of fluid supply or evacuation - A61B 1/31: for the rectum, e.g. proctoscopes or sigmoidoscopes - A61B 2017/00296: {mounted on an endoscope} - A61B 2017/00557: {inflatable (A61B2017/22051 takes precedence)} - A61B 2017/22055: {with three or more balloons} - A61B 2017/22069: {Immobilising; Stabilising} - A61B 2017/306: {holding by means of suction} - A61M 2025/1015: {having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system} - A61M 2025/1047: {having centering means, e.g. balloons having an appropriate shape} - A61M 2025/1052: {for temporarily occluding a vessel for isolating a sector} - A61M 2025/1086: {having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves} - 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 Example embodiments relate to endoscopic systems. Endoscopic system includes main body and control section. Control section includes extendible section that extends and contracts to change length between extendible section ends. Control section includes first expandable member. When first expandable member is in an expanded configuration, first expandable member includes proximal side wall and distal side wall. Distal side wall of first expandable member includes first protrusions. Control section includes second expandable member. When second expandable member is in an expanded configuration, second expandable member includes distal side wall and proximal side wall. Proximal side wall of second expandable member includes second protrusions. First and second protrusions configurable to cooperate to form a sieve portion between first and second expandable members. The sieve portion configured to reduce an occurrence of solids blocking pressure openings while allowing negative pressure to be applied to a body cavity wall through the pressure openings. ## Claims ### Claim 1 An endoscopic system comprising: a main body, the main body having an elongated tubular structure with a first end and a second end, the second end of the main body for use in inserting into a cavity of a patient; and a control section, the control section secured to the second end of the main body, the control section including: an extendible section, the extendible section having a first end and a second end, the extendible section configured to extend and contract to change a length between the first end of the extendible section and the second end of the extendible section; an anchor assembly body, the anchor assembly body having a first end and a second end, the second end of the anchor assembly body being distal to the first end of the anchor assembly body; a first expandable member secured to the anchor assembly body, the first expandable member configurable to transition between an expanded configuration and a non-expanded configuration, wherein when the first expandable member is in the expanded configuration, the first expandable member includes a proximal side wall facing towards the first end of the anchor assembly body and a distal side wall facing towards the second end of the anchor assembly body, wherein the distal side wall of the first expandable member includes one or more first protrusions; a second expandable member secured to the anchor assembly body, the second expandable member configurable to transition between an expanded configuration and a non-expanded configuration, wherein when the second expandable member is in the expanded configuration, the second expandable member includes a distal side wall facing towards the second end of the anchor assembly body and a proximal side wall facing towards the first end of the anchor assembly body, wherein the proximal side wall of the second expandable member includes one or more second protrusions; one or more pressure openings provided on the anchor assembly body at a location between the first and second expandable members, the one or more pressure openings configurable to provide a negative pressure; wherein the first and second protrusions are configurable in such a way that, when the first and second expandable members are in the expanded configuration, one or more of the first protrusions and one or more of the second protrusions cooperate to form a sieve portion between the first and second expandable members, the sieve portion configured to reduce an occurrence of solids blocking one or more of the pressure openings while allowing negative pressure to be applied to a body cavity wall through the one or more pressure openings. ### Claim 2 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: one or more of the first protrusions are formed as a thin wall extending along the distal side wall of the first expandable member in a radial manner away from a center axis of the anchor assembly body; and/or one or more of the second protrusions are formed as a thin wall extending along the proximal side wall of the second expandable member in a radial manner away from a center axis of the anchor assembly body. ### Claim 3 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: one or more of the first protrusions are formed as a thin wall extending along the distal side wall of the first expandable member, each of the one or more first protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body; and/or one or more of the second protrusions are formed as a thin wall extending along the proximal side wall of the second expandable member, each of the one or more second protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body. ### Claim 4 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration: one or more of the first protrusions are formed as a thin wall extending along the distal side wall of the first expandable member in a radial manner away from a center axis of the anchor assembly body; and one or more of the second protrusions are formed as a thin wall extending along the proximal side wall of the second expandable member, each of the one or more second protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body. ### Claim 5 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration: one or more of the first protrusions are formed as a thin wall extending along the distal side wall of the first expandable member, each of the one or more first protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body; and one or more of the second protrusions are formed as a thin wall extending along the proximal side wall of the second expandable member in a radial manner away from a center axis of the anchor assembly body. ### Claim 6 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: one or more of the first protrusions includes one or more openings, gaps, and/or non-uniform height regions for enabling negative pressure from one or more of the pressure openings to be applied through the first protrusions; and/or one or more of the second protrusions includes one or more openings, gaps, and/or non-uniform height regions for enabling negative pressure from one or more of the pressure openings to be applied through the second protrusions. ### Claim 7 (depends on 1) The endoscopic system of claim 1, wherein when the first and second expandable members are in the expanded configuration, one or more of the first protrusions and one or more of the second protrusions cooperate to form one or more openings and/or gaps for the sieve portion so as to enable negative pressure from one or more of the pressure openings to be applied through the sieve portion. ### Claim 8 (depends on 1) The endoscopic system of claim 1, wherein one or more of the following apply: one or more of the first protrusions includes an expandable member configurable to transition from a non-protruded configuration to a protruded configuration, the protruded configuration occurring when the first expandable member is in the expanded configuration and the non-protruded configuration occurring when the first expandable member is in the non-expanded configuration; and/or one or more of the second protrusions includes an expandable member configurable to transition from a non-protruded configuration to a protruded configuration, the protruded configuration occurring when the second expandable member is in the expanded configuration and the non-protruded configuration occurring when the second expandable member is in the non-expanded configuration. ### Claim 9 An endoscopic system comprising: a main body, the main body having an elongated tubular structure with a first end and a second end, the second end of the main body for use in inserting into a cavity of a patient; and a control section, the control section secured to the second end of the main body, the control section including: an extendible section, the extendible section having a first end and a second end, the extendible section configured to extend and contract to change a length between the first end of the extendible section and the second end of the extendible section; a navigation section, the navigation section having a first end and a second end, the navigation section configured to enable at least a portion of the navigation section between the first and second ends of the navigation section to be selectively controlled to bend in a plurality of directions and curvatures, wherein the first end of the navigation section is secured to the second end of the extendible section; an anchor assembly body, the anchor assembly body having a first end and a second end, the second end of the anchor assembly body being distal to the first end of the anchor assembly body, wherein the first end of the anchor assembly body is secured to the second end of the navigation section; a first expandable member secured to the anchor assembly body, the first expandable member configurable to transition between an expanded configuration and a non-expanded configuration, wherein when the first expandable member is in the expanded configuration, the first expandable member includes a proximal side wall facing towards the first end of the anchor assembly body and a distal side wall facing towards the second end of the anchor assembly body; a second expandable member secured to the anchor assembly body, the second expandable member configurable to transition between an expanded configuration and a non-expanded configuration, wherein when the second expandable member is in the expanded configuration, the second expandable member includes a distal side wall facing towards the second end of the anchor assembly body and a proximal side wall facing towards the first end of the anchor assembly body; one or more pressure openings provided on the anchor assembly body at a location between the first and second expandable members, the one or more pressure openings configurable to provide a negative pressure; wherein, when the first and second expandable members are in the expanded configuration, at least a portion of the first expandable member and at least a portion of the second expandable member contact each other in such a way as to reduce an occurrence of solids blocking one or more of the pressure openings while allowing negative pressure to be applied to a body cavity wall through the one or more pressure openings. ### Claim 10 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: the first expandable member includes one or more first protrusions, the one or more first protrusions formed as a thin wall extending along the distal side wall of the first expandable member in a radial manner away from a center axis of the anchor assembly body; and/or the second expandable member includes one or more second protrusions, the one or more second protrusions formed as a thin wall extending along the proximal side wall of the second expandable member in a radial manner away from a center axis of the anchor assembly body. ### Claim 11 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: the first expandable member includes one or more first protrusions, the one or more first protrusions formed as a thin wall extending along the distal side wall of the first expandable member, each of the one or more first protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body; and/or the second expandable member includes one or more second protrusions, the one or more second protrusions formed as a thin wall extending along the proximal side wall of the second expandable member, each of the one or more second protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body. ### Claim 12 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration: the first expandable member includes one or more first protrusions, the one or more first protrusions formed as a thin wall extending along the distal side wall of the first expandable member in a radial manner away from a center axis of the anchor assembly body; and the second expandable member includes one or more second protrusions, the one or more second protrusions formed as a thin wall extending along the proximal side wall of the second expandable member, each of the one or more second protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body. ### Claim 13 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration: the first expandable member includes one or more first protrusions, the one or more first protrusions formed as a thin wall extending along the distal side wall of the first expandable member, each of the one or more first protrusions formed in a manner resembling a concentric circle with a common center being a point along a center axis of the anchor assembly body; and the second expandable member includes one or more second protrusions, the one or more second protrusions formed as a thin wall extending along the proximal side wall of the second expandable member in a radial manner away from a center axis of the anchor assembly body. ### Claim 14 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration, one or more of the following apply: the first expandable member includes one or more first protrusions, the one or more first protrusions includes one or more openings, gaps, and/or non-uniform height regions for enabling negative pressure from one or more of the pressure openings to be applied through the first protrusions; and/or the second expandable member includes one or more second protrusions, the one or more second protrusions includes one or more openings, gaps, and/or non-uniform height regions for enabling negative pressure from one or more of the pressure openings to be applied through the second protrusions. ### Claim 15 (depends on 9) The endoscopic system of claim 9, wherein when the first and second expandable members are in the expanded configuration, the first and second expandable members cooperate to form one or more openings and/or gaps so as to enable negative pressure from one or more of the pressure openings to be applied through the first and second expandable members. ### Claim 16 (depends on 9) The endoscopic system of claim 9, wherein one or more of the following apply: the first expandable member includes an expandable member configurable to transition from a non-protruded configuration to a protruded configuration, the protruded configuration occurring when the first expandable member is in the expanded configuration and the non-protruded configuration occurring when the first expandable member is in the non-expanded configuration; and/or the second expandable member includes an expandable member configurable to transition from a non-protruded configuration to a protruded configuration, the protruded configuration occurring when the second expandable member is in the expanded configuration and the non-protruded configuration occurring when the second expandable member is in the non-expanded configuration.