US1273542A - Catheter. - Google Patents
Catheter. Download PDFInfo
- Publication number
- US1273542A US1273542A US18619117A US18619117A US1273542A US 1273542 A US1273542 A US 1273542A US 18619117 A US18619117 A US 18619117A US 18619117 A US18619117 A US 18619117A US 1273542 A US1273542 A US 1273542A
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- US
- United States
- Prior art keywords
- catheter
- point
- accordance
- section
- cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
- A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
Definitions
- an object of my invention is to provide a catheter designed with a view to facilitating its introduction into the male urethral canal, and for other purposes which will presently appear.
- Figure 1 is a View in plan of a catheter constructed in accordance with my invention.
- Fig. 2 is a View thereof in side elevation.
- Fig. 3 is a view on an enlarged scale in section showing the point thereof taken on the line 33 of Fig. 1, and
- Figs. 4 and 5 are transverse sections taken on the lines 44 and 55 respectively of Fig. 1.
- 10 indi cates the body of catheter which is in the nature of a tube, but in accordance with my invention is oval or elliptical in cross section as shown in Fig. 5 to conform to the cross section of the urethral canal.
- the point when viewed in plan is formed with tapering sides 11 which terminate in a point.
- the under side of the point is curved upwardly as at 12 and the top side is curved downwardly as at 13 to a greater degree of curvature however, to permit the point of the catheter to slide easily over the middle lobe when the catheter is inserted.
- the point when viewed from side elevation the point is formed with curved edges, and in plan the point is formed with flat sides 11 which converge toward a more or less sharpened edge.
- the canal of the catheter indicated at 14 extends through the instrument and opens into an eye 15 which is located upon the top side and slightly rearward of the point.
- a catheter including a tubular body portion elliptical or flattened in cross section, and having an elliptical channel extending therethrough, a. penetrative formation at one end of the body portion including plane sidewalls in converging relation forming continuations of the flattened sides of the body portion, and edges curved toward each other to form a point in conjunction with the plane walls, said channel opening outward in one of said edges.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
L. SCHOOLER.
CATHETER. APPLICATION FILED AUG. 14. 19H.
Patented July 23, 1918.
WITNESSES INVENTOR 6 day/e2;
ATTORNEY LEWIS SCHOOLER, OF DES MOINES, IOWA.
CATHETER.
Specification of Letters Patent.
Patented July 23, 1918.
Application filed August 14, 1917. Serial No. 186,191.
To all whom it may concern:
Be it known that I, LEWIS Sorroonnn, a citizen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented certain new and useful Improvements in Catheters, of which, the following is a specification.
This invention has relation to catheters, and the nature and objects thereof will be readily apparent to those skilled in the art to which it appertains, in the light of the following explanation of the accompanying drawings, setting forth what I now believe to be the preferred embodiment, or mechanical expression of my invention, from among other forms and arrangements within the spirit thereof and the scope of the appended claim.
However, an object of my invention is to provide a catheter designed with a view to facilitating its introduction into the male urethral canal, and for other purposes which will presently appear.
In addition to the foregoing my invention comprehends improvements in the details of construction and arrangement of the parts to be hereinafter more fully described and particularly set forth in the appended claim.
In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference throughout the several views in which they appear:
Figure 1, is a View in plan of a catheter constructed in accordance with my invention.
' Fig. 2, is a View thereof in side elevation.
Fig. 3, is a view on an enlarged scale in section showing the point thereof taken on the line 33 of Fig. 1, and
Figs. 4 and 5 are transverse sections taken on the lines 44 and 55 respectively of Fig. 1.
With reference to the drawings, 10 indi cates the body of catheter which is in the nature of a tube, but in accordance with my invention is oval or elliptical in cross section as shown in Fig. 5 to conform to the cross section of the urethral canal.
The point, when viewed in plan is formed with tapering sides 11 which terminate in a point. The under side of the point is curved upwardly as at 12 and the top side is curved downwardly as at 13 to a greater degree of curvature however, to permit the point of the catheter to slide easily over the middle lobe when the catheter is inserted. Thus it will be seen, when viewed from side elevation the point is formed with curved edges, and in plan the point is formed with flat sides 11 which converge toward a more or less sharpened edge. The canal of the catheter indicated at 14: extends through the instrument and opens into an eye 15 which is located upon the top side and slightly rearward of the point.
It has been my experience that a catheter designed in accordance with the outline given above and in accordance with the disclosure of the drawings presents many improvements in this art which have heretofore been unknown according to the best of my knowledge and belief. The introduction of the instrument if constructed in accordance with my invention, is accompanied by less pain than in the case of the instrument of conventional design having blunt points and which are circular in cross section throughout.
Having thus described my invention what I claim as new and desire to secure by Let ters Patent is A catheter including a tubular body portion elliptical or flattened in cross section, and having an elliptical channel extending therethrough, a. penetrative formation at one end of the body portion including plane sidewalls in converging relation forming continuations of the flattened sides of the body portion, and edges curved toward each other to form a point in conjunction with the plane walls, said channel opening outward in one of said edges.
In testimony whereof I affix my signature in presence of two Witnesses.
LEWIS SCHOOLER.
Witnesses:
E. W. LEHMAN, Gnome SWANSON.
Copies at this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,
Washington, D. 0.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18619117A US1273542A (en) | 1917-08-14 | 1917-08-14 | Catheter. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18619117A US1273542A (en) | 1917-08-14 | 1917-08-14 | Catheter. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1273542A true US1273542A (en) | 1918-07-23 |
Family
ID=3341158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18619117A Expired - Lifetime US1273542A (en) | 1917-08-14 | 1917-08-14 | Catheter. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1273542A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795446A (en) * | 1986-01-30 | 1989-01-03 | Sherwood Medical Company | Medical tube device |
US5271414A (en) * | 1992-09-30 | 1993-12-21 | Becton, Dickinson And Company | Biopsy cannula having non-cylindrical interior |
US5662619A (en) * | 1995-11-27 | 1997-09-02 | Zarate; Alfredo R. | Venous dialysis needle |
US20090157085A1 (en) * | 2007-12-18 | 2009-06-18 | Cook Incorporated | Device and method for introducing a bone cement mixture into a damaged bone |
-
1917
- 1917-08-14 US US18619117A patent/US1273542A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4795446A (en) * | 1986-01-30 | 1989-01-03 | Sherwood Medical Company | Medical tube device |
US5271414A (en) * | 1992-09-30 | 1993-12-21 | Becton, Dickinson And Company | Biopsy cannula having non-cylindrical interior |
US5662619A (en) * | 1995-11-27 | 1997-09-02 | Zarate; Alfredo R. | Venous dialysis needle |
US20090157085A1 (en) * | 2007-12-18 | 2009-06-18 | Cook Incorporated | Device and method for introducing a bone cement mixture into a damaged bone |
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