WO1994028784B1 - Endoscope - Google Patents
EndoscopeInfo
- Publication number
- WO1994028784B1 WO1994028784B1 PCT/US1994/006526 US9406526W WO9428784B1 WO 1994028784 B1 WO1994028784 B1 WO 1994028784B1 US 9406526 W US9406526 W US 9406526W WO 9428784 B1 WO9428784 B1 WO 9428784B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shell
- core
- lumen
- body cavity
- inner body
- Prior art date
Links
- 238000003384 imaging method Methods 0.000 claims abstract 41
- 239000000463 material Substances 0.000 claims abstract 29
- 238000007789 sealing Methods 0.000 claims abstract 26
- 238000004140 cleaning Methods 0.000 claims abstract 25
- 239000012530 fluid Substances 0.000 claims abstract 19
- 238000003780 insertion Methods 0.000 claims abstract 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000002560 therapeutic procedure Methods 0.000 claims 14
- 230000000875 corresponding Effects 0.000 claims 3
- 238000007689 inspection Methods 0.000 claims 2
Abstract
An endoscope (10) for insertion into a patient's inner body cavity has a shell (12) with apertures (18, 20) for 1) illuminating a lens and 2) passing light from an imaging (or objective) lens, each lens being disposed on the distal face of the shell. The shell (12) also has an aperture (22), preferably off-round, for receiving a resilient disposable core (24). The resilient core has passageways for introducing a pressurized fluid (e.g. air or water) to selective ones of the lenses to clean the lenses. The core may also have another passageway for removing material from the patient's inner body cavity for analysis. This passageway may communicate with two (2) conduits for removing specimens from the body cavity (1) as by a vacuum (36) or 2) as by an instrument (38). The second conduit may be closed except when the instrument is to be inserted into the patient's inner body cavity. The core may be drawn through the shell aperture to position the core in the aperture. A cleaning member may be attached to the core to clean the shell aperture as the core is drawn through the aperture. Alternatively, a leader applied to the core may be drawn with the core through the shell aperture and then removed from the core. Sealing members attached to the core may also be drawn through the aperture with the core to seal the core. Alternatively, members may be sealed to the core or shell after the sealing operation. A cover on a core end may alternatively be removed after the core has been drawn through the shell aperture.
Claims
1. An endoscope for inspecting or applying therapy to an inner body cavity, including, a shell, illuminating means fixedly positioned in the shell, imaging means fixedly positioned in the shell, a core removably disposed within the shell in sealing relationship with the shell with the illuminating means and the imaging means exterior in the shell to the core, and the core including a first passageway disposed within the core for providing for a removal of materials from the inner body cavity of the patient.
2. An endoscope as set forth in claim 1, including, the core including a second passageway disposed within the core for applying a fluid to selected areas of the shell or inner body cavity of the patient to clean such selected areas or to inflate such cavity with gas.
3. An endoscope as set forth in claim 1, including, the core including a second passageway disposed within the core for applying a fluid to the imaging means to clean the imaging means.
4. An endoscope as set forth in claim 1, including, means disposed "on at least one of the core and the shell and cooperating with the core and the shell for sealing the core within the shell.
5. An endoscope as set forth in claim 1, including, there being in the shell a lumen with a shaped configuration in section, and the core being provided with a shaped configuration in section corresponding to the shaped configuration of the lumen in the shell and being disposed within the lumen.
6. An endoscope for inspecting or applying therapy to an inner body cavity, including, a shell made for insertion into the inner body cavity, the shell having a distal face, illuminating means fixedly disposed in the shell and extending to the distal face of the shell, imaging means fixedly disposed in the shell and extending to the distal face of the shell in spaced relationship to the illuminating means, there being a lumen in the shell, a core removably disposed within the lumen in the shell with the illuminating means and the imaging means exterior in the shell to the core, first means for sealing the core within the lumen in the shell, second means disposed within the core for cleaning at least one of the illuminating means and the imaging means in the shell, and third means disposed within the core for providing for the passage of materials between the inner body cavity of the patient and the endoscope.
7. An endoscope as set forth in claim 6, including, the second means providing for the introduction of a fluid to the imaging means to clean the imaging means, dry the imaging means or inflate the field of view in the inner body cavity of the patient.
8. An endoscope as set forth in claim 6, including, the third means including a first conduit for removing material from the inner body cavity as by suction and including a second conduit for providing for the passage of instrumentation into the inner body cavity of the patient.
9. An endoscope as set forth in claim 8, including, means for sealing the second conduit except when the instrumentation is to be inserted in the inner body cavity.
10. An endoscope for inspecting or applying therapy to an inner body cavity of a patient, including, a shell having a face at its distal end, illuminating means fixedly positioned in the shell and extending to the face at the distal end of the shell for illuminating a particular portion of the internal body cavity to be inspected, imaging means fixedly positioned in the shell and extending to the face at the distal end of the shell for receiving the image of the particular portion of the internal body cavity to be inspected, there being a lumen in the shell in spaced relationship to the illuminating means and the imaging means, a core removably disposed within the shell lumen with the illuminating means and the imaging means exterior in the shell to the core, first passageway means disposed within the core for introducing a fluid to at least one of the imaging means and the illuminating means through the first passageway means to clean or dry at least one of the imaging means and the illuminating means or for introducing a fluid to the particular portion of the internal body cavity through the first passageway means to clean the particular portion for inspection or to inflate the cavity with gas, and second passageway means disposed within the core in spaced relationship to the first passageway means for providing for the passage of instruments through the second passageway means or for the passage of materials through the second passageway means between the particular portion of the inner body cavity and the endoscope.
11. An endoscope as set forth in claim 10, wherein, the lumen has openings, and including, means for sealing the core within the shell at the openings of the lumen and for providing for the removal of the core from the shell after the use of the shell and the core to inspect or apply therapy to the particular portion of the patient's internal body cavity.
12. In combination for use in an endoscope to inspect or apply therapy to an inner body cavity of a patient, a shell having a face at its distal end, illuminating means on the face at the distal end of the shell for illuminating a particular portion of the internal body cavity to be inspected, imaging means disposed on the face at the distal end of the shell for receiving the image of the particular portion of the internal body cavity to be inspected, there being a lumen in the shell in spaced relationship to the illuminating means and the imaging means, a core removably disposed in the shell lumen, first passageway means disposed in the core for introducing a fluid to at least one of the imaging means and the illuminating means to clean or dry such means or for introducing a fluid to the particular portion of the internal body cavity to clean the particular portion for inspection or to inflate the cavity with gas, second passageway means disposed in the core in spaced relationship to the first passageway means for providing for the passage of instruments or the passage of materials between the particular portion of the inner body cavity and the endoscope, the lumen having openings, means for sealing the core within the shell at the openings of the lumen, and means for cleaning the lumen in the shell during the insertion of the core into the lumen.
13. An endoscope as set forth in claim 10, including, the second passageway means having first and second conduit means at the proximal end, and the first conduit means being constructed to become closed when a vacuum is to be applied through the second conduit means to remove materials from the patient's inner body cavity.
14. .An endoscope as set forth in claim 13, including, the second conduit means being constructed to receive a vacuum to remove materials from the inner body cavity, and means for closing the first conduit means except when an instrument is inserted through the first conduit means.
15. In combination for use in an endoscope to inspect or apply therapy to an inner body cavity of a patient where the endoscope includes a shell with a lumen having a proximal end and a distal end and a distal face and illuminating means and imaging means fixedly disposed in the shell and extending to the distal face at positions displaced from the lumen, a core made from a resilient material and shaped to fit within the lumen in the shell, the core having a first passageway within the core for receiving a fluid under pressure to clean at least one of the illuminating means and the imaging means on the distal face of the shell and having a second passageway within the core for providing for the passage of material between the inner body cavity and the endoscope, and means associated with the core and the shell for sealing the core within the shell lumen at at least one of the distal and proximal ends of the lumen.
16. In a combination as set forth in claim 15, the first passageway being adapted to pass a selective one of air and water under pressure to the distal end of the core for cleaning at least one of the illuminating means and the imaging means on the shell.
17. In a combination as set forth in claim 15, the second passageway including a first conduit for receiving a vacuum for removing material from the patient' s inner body cavity by suction and including a second conduit for receiving an instrument.
18. In a combination as set forth in claim 15, means disposed on the core for separating the second passageway into a first conduit for receiving a vacuum and into a second conduit for receiving an instrument, and means associated with the second conduit for sealing the second conduit except when the instrument is inserted into the second conduit.
19. In combination for use in an endoscope to inspect or apply therapy to an inner body cavity of a patient where the endoscope includes a shell with a lumen and a distal face and illuminating means and imaging means on the distal face, a core made from a resilient material and shaped to fit into the lumen in the shell, the core having a first passageway for receiving a fluid under pressure to clean at least one of the illuminating means and imaging means on the distal face of the shell and having a second passageway for providing for the passage of material between the inner body cavity and the endoscope, means associated with the core for sealing the core in the shell lumen, and means attached to the core for cleaning the lumen in the shell during the insertion of the core into the lumen in the shell.
20. In a combination as set forth in claim 13, means for plugging the first conduit when the second conduit receives the instrument.
21. In a combination as set forth in claim 15, means disposed in co-operative relationship with the core for facilitating the insertion of the core into the lumen in the shell.
22. In a combination as set forth in claim 21 wherein the facilitating means is removable from the co¬ operative relationship with the core after the insertion of the core into the lumen in the shell.
23. In combination for use in an endoscope to inspect or apply therapy to an inner body cavity of a patient where the endoscope includes a shaped lumen and also includes a distal face and includes illuminating means and imaging means fixedly disposed in the shell and extending to the distal face, a core made from a resilient material and having a shaped external periphery corresponding to the shaped lumen in the shell for removable disposition within the lumen, a first passageway extending longitudinally through the core for passing a fluid under pressure to at least one of the illuminating means and the imaging means on the distal face of the shell, a second passageway extending longitudinally through the core to provide for the passage of material between the inner body cavity and the endoscope or the passage of instruments, and means supported by the core for sealing the distal end of the core within the lumen in the shell.
24. In a combination as set forth in claim 23, the sealing means including means separable from the core for sealing the distal end of the core within the lumen in the shell after the core has been disposed within the lumen.
25. In combination for use in an endoscope to inspect or apply therapy to an inner body cavity of a patient where the endoscope includes a shaped lumen and also includes a distal face and includes illuminating means and imaging means on the distal face, a core made from a resilient material and having a shaped external periphery corresponding to the shaped lumen in the shell, a first passageway extending longitudinally through the core for passing a fluid under pressure to at least one of the illuminating means and the imaging means on the distal face of the shell, a second passageway extending longitudinally through the core to provide for the passage of material between the inner body cavity and the endoscope or the passage of instruments, means disposed in cooperative relationship with
28 the core and the shell for sealing the distal end of the core in the lumen in the shell, and means attached to the core and movable with the core through the lumen in the shell for cleaning the lumen in the shell during the insertion of the core in the lumen in the shell.
26. In a combination as set forth in claim 23, the first passageway being disposed within the core to direct fluid under pressure to the illuminating means, and a third passageway disposed within the core to direct fluid under pressure to the imaging means.
27. In a combination as set forth in claim 23, means for facilitating the insertion of the core within the lumen in the shell.
28. In a combination as set forth in claim 23, the endoscope having a proximal end, the second passageway defining first and second conduits at a position displaced from the shell in the proximal end of the core, the first conduit receiving a vacuum and introducing the vacuum to the inner body cavity through the second passageway for removing material from the inner body cavity, the second conduit receiving an instrument and passing the instrument through the second passageway for passing material between the inner body cavity and the endoscope, and means for closing the second conduit except when the second conduit is to receive the instrument.
29. A method of inspecting and applying therapy to a patient's inner body cavity and of removing material from the patient's inner body cavity, including the following steps: providing a shell having illuminating means and imaging means fixedly disposed in the shell and extending to a distal end of the shell and having a lumen extending longitudinally through the shell, the illuminating means and the imaging means being disposed within the shell at a position external to the lumen in the shell, providing a resilient core having an external periphery configured to conform to the lumen in the shell and having at least a first passageway extending longitudinally through the core for applying a fluid under pressure to at least one of the illuminating means and the imaging means and having a second passageway extending longitudinally through the core for providing for the passage of material between the patient's inner body cavity and the endoscope, cleaning the external surface of the shell and the surface in the lumen of the shell, thereafter removably disposing the core within the lumen in the shell, and sealing the core within the lumen in the shell after the desired positioning of the core within the lumen in the shell.
30. A method of inspecting and applying therapy to a patient's inner body cavity and of removing material from the patient's inner body cavity, including the following steps: providing a shell having illuminating means and imaging means at a distal end and having a lumen extending longitudinally through the shell, providing a resilient core having an external periphery configured to conform to the lumen in the shell and having at least a first passageway extending longitudinally through the core for applying a fluid under pressure to at least one of the illuminating means and the imaging means and having a second passageway extending
30 longitudinally through the core for providing for the passage of material between the patient's inner body cavity and the endoscope, cleaning the external surface of the shell and the surface in the lumen of the shell, thereafter removably disposing the core in the lumen in the shell, sealing the core in the shell after the desired positioning of the core in the shell, providing a resilient cleaning member at one end of the core, and moving the core and the cleaning member through the lumen in the shell to provide a cleaning of the lumen in the shell during the insertion of the core in the lumen in the shell.
31. A method as set forth in claim 29 wherein the core is drawn through the lumen in the shell and a member is then activated in a particular one of the core and the shell to seal the core within the lumen in the shell after the core has been drawn through the lumen in the shell.
32. A method of inspecting and applying therapy to a patient's inner body cavity and of removing material from the patient's inner body cavity, including the following steps: providing a shell having illuminating means and imaging means fixedly disposed in the shell and extending to a distal end of the shell and having a lumen extending longitudinally through the shell with the illuminating means and the imaging means exterior to the lumen, providing a resilient core having an external periphery configured to conform to the lumen in the shell and having at least a first passageway extending longitudinally through the core for applying a fluid under pressure to at least one of the illuminating means and the
31 imaging means and having a second passageway extending longitudinally through the core for providing for the passage of material between the patient' s inner body cavity and the endoscope, cleaning the external surface of the shell and the surface in the lumen of the shell, thereafter removably disposing the core in the lumen in the shell, sealing the core in the shell after the desired positioning of the core in the shell, and applying a leader to the core and then drawing the leader through the lumen in the shell with the leader applied to the core and the leader being withdrawn from the core after the leader and the core have been drawn through the lumen in the shell.
33. A method of inspecting and applying therapy to a patient's inner body cavity and of removing material from the patient's inner body cavity, including the following steps: providing a shell having illuminating means and imaging means at a distal end and having a lumen extending longitudinally through the shell, providing a resilient core having an external periphery configured to conform to the lumen in the shell and having at least a first passageway extending longitudinally through the core for applying a fluid under pressure to at least one of the illuminating means and the imaging means and having a second passageway extending longitudinally through the core for providing for the removal of material from the patient's inner body cavity, cleaning the external surface of the shell and the surface in the lumen of the shell, thereafter disposing the core in the lumen in the shell, sealing the core in the shell after the desired positioning of the core in the shell, and
32 applying sealing means to the distal end of the core and then drawing the core through the lumen in the shell to a position where the sealing means seal the lumen at the distal end of the shell.
34. A method of inspecting and applying therapy to a patient's inner body cavity and of removing material from the patient's inner body cavity, including the following steps: providing a shell having illuminating means and imaging means at a distal end and having a lumen extending longitudinally through the shell, providing a resilient core having an external periphery configured to conform to the lumen in the shell and having at least a first passageway extending longitudinally through the core for applying a fluid under pressure to at least one of the illuminating means and the imaging means and having a second passageway extending longitudinally through the core for providing for the passage of material between the patient's inner body cavity and the endoscope, cleaning the external surface of the shell and the surface in the lumen of the shell, thereafter disposing the core in the lumen in the shell, sealing the core in the shell after the desired positioning of the core in the shell, and providing one end of the core with a covering and drawing the core through the lumen in the shell with the covering on the core and removing the covering on the core after the core has been drawn through the lumen in the shell.
35. A method as set forth in claim 29 wherein a member is disposed in co-operation with the core to facilitate the insertion of the core into the lumen in the shell.
33
36. A method as set forth in claim 35 wherein the facilitating member is withdrawn from the core after the core has been inserted into the lumen in the shell.
37. An endoscope as set forth in claim 1, including, there being a lumen in the shell, the core being disposed in the lumen, and means disposed on at least one of the core and the shell and cooperating with the core and the shell for sealing the core within the lumen in the shell.
38. An endoscope as set forth in claim 6, including, means disposed within the lumen for sealing the core within the lumen in the shell.
39. An endoscope as set forth in claim 10, including, means disposed within the lumen for sealing the core within the lumen in the shell.
40. A method as set forth in claim 29 wherein means are disposed within the lumen in the core for sealing the core within the lumen in the shell.
34
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7502108A JPH08510676A (en) | 1993-06-08 | 1994-06-08 | Endoscope |
| AU70588/94A AU683476B2 (en) | 1993-06-08 | 1994-06-08 | Endoscope |
| EP94919435A EP0705069A1 (en) | 1993-06-08 | 1994-06-08 | Endoscope |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/072,935 US5486154A (en) | 1993-06-08 | 1993-06-08 | Endoscope |
| US072,935 | 1993-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994028784A1 WO1994028784A1 (en) | 1994-12-22 |
| WO1994028784B1 true WO1994028784B1 (en) | 1995-02-02 |
Family
ID=22110664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/006526 WO1994028784A1 (en) | 1993-06-08 | 1994-06-08 | Endoscope |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US5486154A (en) |
| EP (1) | EP0705069A1 (en) |
| JP (1) | JPH08510676A (en) |
| AU (1) | AU683476B2 (en) |
| CA (1) | CA2162675A1 (en) |
| WO (1) | WO1994028784A1 (en) |
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