# US 11,026,715 B2 · Chest cavity suction medical apparatus and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,715 B2 - Document ID: US11026715B2 - Status: Granted - Kind: B2 - Application number: 15/719,036 - Filed: 2017-09-28 - Published: 2019-03-28 - Granted: 2021-06-08 - Earliest claimed: 2017-09-28 - Applicants: John Mayberry - Inventors: John Mayberry - Web page: https://patentgrep.com/patent/US11026715B2 ## CPC - A61B 17/3205: Excision instruments - A61B 17/32: Surgical cutting instruments ({A61B18/042 takes precedence; suture cutters A61B17/0467;} implements for ligaturing and cutting {A61B17/122, A61B17/12; instruments for rupturing the amniotic membrane A61B17/4208; specially adapted knives for eye surgery A61F9/0133}) - A61M 1/743: {by changing the cross-section of the line, e.g. flow regulating valves (A61M1/7413 takes precedence)} - A61M 1/76: {Handpieces (specially for suction-irrigation A61M1/774, aspiration tips A61M1/84)} - A61M 1/77: {Suction-irrigation systems (aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463)} - A61M 1/774: {Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently} - A61M 1/85: {with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants (for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208)} - A61B 2017/320008: {Scrapers} - A61B 2217/005: with suction drainage system - A61B 2217/007: with irrigation system - 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 medical suction apparatus may include a wand having a proximal end and a distal end. The apparatus may further include a lumen defined within the wand, the lumen configured to couple to a suction source. The apparatus may also include a mouth defined at the distal end of the wand and placing the lumen in communication with an exterior of the wand, where the mouth has an upper edge and a lower edge, where the mouth is elongated horizontally between the upper edge and the lower edge, and where at least the upper edge or the lower edge is beveled to enable scraping of a surface. ## Claims ### Claim 1 A medical suction apparatus comprising: a wand having a proximal end and a distal end; a lumen defined within the wand, the lumen configured to couple to a suction source; a mouth defined within a single integral wall of a single tube at the distal end of the wand and placing the lumen in communication with an exterior of the wand, wherein the mouth has an upper edge at the distal end of the wand and a lower edge closer to the proximal end than the distal end, wherein the upper edge includes a backward facing scraping edge to enable scraping of biological debris from a surface of soft biological tissue without harming the soft biological tissue when the wand is pulled in a backward direction, and wherein the lower edge includes a forward facing scraping edge to enable scraping of biological debris from a surface of soft biological tissue without harming the soft biological tissue when the wand is pushed in a forward direction. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the lumen is further configured to couple to an irrigation source. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the lumen has a diameter of at least 10 mm to enable blood clot and fibrinous exudate debris to pass therethrough. ### Claim 4 (depends on 1) The apparatus of claim 1, further comprising a grate between the mouth and the lumen, the grate configured to partition debris passing through the mouth to prevent clogging of the lumen. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the upper edge is concave and the lower edge is flat. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the mouth has a crescent shape, the upper edge and the lower edge of the mouth being concave in a same direction. ### Claim 7 (depends on 1) The apparatus of claim 1, further comprising a lip on an upper portion of the distal end of the wand, the lip forming the upper edge of the mouth. ### Claim 8 (depends on 1) The apparatus of claim 1, further comprising a valve for adjusting a suction strength within the lumen. ### Claim 9 A method for applying medical suction comprising: applying suction to a lumen defined within a wand, the wand having a proximal end and a distal end, the wand further having mouth having a first edge defined at the distal end of the wand and a second edge closer to the proximal end than the distal end, wherein the first edge includes a backward facing scraping edge, wherein the second edge includes a forward facing scraping edge and, wherein where the mouth places the lumen in communication with an exterior of the wand, wherein the first edge and the second edge enable scraping of biological debris from a surface of soft biological tissue without harming the soft biological tissue; scraping the biological debris from the surface of the biological tissue with the first edge of the mouth when the wand is tilted to an angle that places the first edge of the mouth in contact with the biological surface while the second edge of the mouth is not in contact with the biological surface and the wand is pulled in a backward direction; scraping the biological debris from the surface of the biological tissue with the second edge of the mouth when the wand is tilted to an angle that places the second edge of the mouth in contact with the biological surface while the first edge of the mouth is not in contact with the biological surface and the wand is pushed in a forward direction; and receiving the biological debris through the lumen. ### Claim 10 (depends on 9) The method of claim 9, further comprising applying irrigation through the lumen before applying suction to the lumen. ### Claim 11 (depends on 9) The method of claim 9, wherein the biological debris include blood clot and fibrinous exudate debris. ### Claim 12 (depends on 9) The method of claim 9, further comprising partitioning the biological debris at a grate positioned between the mouth and the lumen. ### Claim 13 (depends on 9) The method of claim 9, wherein the biological surface is a surface of a lung or a surface of a pleural cavity wall. ### Claim 14 (depends on 9) The method of claim 9, further comprising adjusting a suction strength within the lumen. ### Claim 15 A medical suction device comprising: a wand having a proximal end and a distal end; a lumen defined within the wand, the lumen configured to couple to a suction source; a mouth defined in the wand and placing the lumen in communication with an exterior of the wand, wherein the lumen curves downward at the distal end of the wand, wherein the mouth is at an obtuse angle relative to an outer surface of the wand, and wherein the mouth includes a backward facing scraping edge to enable scraping of biological debris from a surface of soft biological tissue without harming the soft biological tissue when the wand is pulled in a backward direction, and wherein the mouth includes a forward facing scraping edge to enable scraping of biological debris from a surface of soft biological tissue without harming the soft biological tissue when the wand is pushed in a forward direction. ### Claim 16 (depends on 15) The device of claim 15, further comprising: a grate positioned between the mouth and the lumen, the grate configured to partition biological debris passing through the mouth to prevent clogging of the lumen.