|Publication number||US1213001 A|
|Publication date||Jan 16, 1917|
|Filing date||May 2, 1916|
|Priority date||May 2, 1916|
|Publication number||US 1213001 A, US 1213001A, US-A-1213001, US1213001 A, US1213001A|
|Inventors||Herman B Philips|
|Original Assignee||Ralph S Philips|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (101), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
H. B. PHILIPS.
APPLICATION FILED III/IY 2. IeIs.
Patented Jan. 16, 1917.
mgl/1111A Wl /VESSES A ITUHNEYS m: Mmm; new m4. mmm-I Imal. Msn/wam. n. c.
umn sans aranci onirica HERMAN' B. PHILIPS, 0F NEW YORK, N. Y., ASSIGNOR TO RALPH S. PHILIPS, 0F NEW YORK, 1\T. Y.
Application led May 2, 1916.
T0 all whom t may concern Be it known that I, HERMAN B. PHILIPS, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Therapeut-ic Apparatus, of which therfollowing is a full, clear, and exact description.
This invention relates to a surgical apparatus and has particular reference to devices adapted especially for the automatic drainage of empyema.
Among the objects of the invention is to provide a specific improvement in the therapeutic apparatus covered by Letters Patent of the United States, No. 1,155,271, issued at my request to Ralph S. Philips, September 28, 1915, in the provision of a combined trocar and curette for immediate coperation with the cannula constituting one of the main elements of the apparatus. In carrying out this invention therefore in a practical manner, I provide an especially formed cannula having a trocar attachment adapted to be carried as a standard feature of the cannula and serving to make an incision when accompanyingv the cannula, and providing means whereby the cannula may be introduced into the pleural cavity vsimultaneously with the making of the incision with the trocar. The trocar may then be withdrawn from the patient, leaving the cannula in .place where it may be retained until the treatment is completed, special means being applied to the outlet of the cannula, of a nature preferably as set forth in the previous patent above mentioned, to create sullicient negative pressure or suction to insure complete and expeditious drainage.
Another object of the invention is to combine with the trocar an element in the nature of a curette adapted to be introduced into or through the cannula for the purpose of removing any obstructions that may interfere with the proper flow outwardly through the cannula or outlet.
A. further object of the invention is to provide locking means to retain either or both of the trocar and curette elements in position in the outer end of the cannula and thereby render said outlet end of the cann nula practically air tight.
With the foregoing and other objects in view the invention consists in the arrange- Specification of Letters Patent.
Patented JT an. 16, 1911"?. seran No. aaa/e;
ment and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggested herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a side elevation of the main parts of the device, the rubber cup and securing means being in section, the parts being adjusted in position to employ the trocar for introducing the cannula into the pleural cavity; Fig. 2 is a vertical longitudinal section of the main parts of the device in the same position as in Fig. 1, the view, however, being on a larger scale and omitting the cup and fastening devices; Fig. 3 is a view corresponding to Fig. 2 but showing the curette projected and the trocar retracted; Fig. 4L is a view corresponding to the right hand end either of Figs. 2 or 3, but with the cannula and outlet in free open communication for normal drainage, this view indicating the temporary action of the locking device; Fig. 5 is a side elevation of the same parts as are shown in Fig. 1, but with the locking device set as a permanent lock; and Fig. 6 is a transverse sectional detail on the line 6 6 of Fig. 5.
Referring now more particularly to the drawings, I show a cannula 10 having a smooth cylindrical bore 10, and having se cured thereto a tubular outlet 11 to which may be connected a 'flexible suction and drainage tube 12 of any desired length which, as stated in the previous patent, may be connected to a suction device if desired. A comparatively flat cup 13 of flexible rubber or the like is connected adjustably along the cannula between the point or tapered end 1-1 thereof and the outlet 11. The cup is shown provided with a neck 15 surrounded by a thimble 16 having a flange 1.7 reinforcing the central portion of the cup. A set screw 18 serves to position the cup along the cannula according to the depth that the cannula is to be operated. This cup constitutes a means in connection with the yoke 19 for securing the apparatus in fixed position until the' operation is completed. In other words, when the cannula is once introduced into the pleural Y cavity'and strapped or otherwise bound in f and along the bore of the cannula.
place to the patient, it will not be removed until the'patienthas practically recovered from the condition, no occasion being found for removing theV cannula for the purpose of'cleansing either it or the wound, or for facilitating the drainage operation.
Referringnow to the arrangement of the parts as shown in Figs.k 1 and 2, which may Vbe regarded as the first position or Ythe adaptation of the apparatus to the introduction ofthe cannula into the pleural cavity, I pro- Y vide a trocar 20 consistingof apointed head Vthe tube 25, however, is enlarged forming the curette 2G, theV curette being connected to the main portion of the tube at the shoulder 27. The curette fits snugly, but slidably in The head 20,a of the trocar being larger than the rod 20b is adapted to abut against the shoulder 27 when the trocar is drawn outwardly,
as shown in Fig; 3. In other words, the
curette portion of the tube 25 is longer than the head of the trocar. In the position of the trocar just referred to, a circumferential groove 28 formed therearound registers with a series of holes 29 formed around the curette not far remote from the shoulder 27. The outer end ofthe tube 25 is fitted with a finger piece 30, adjacent which the tube is externally threaded at 25', and along this Y c threaded portion operates a runner or lock nut 3l. Y The outer end of the cannula is provided with a removable cap 32 threaded upon the otherwise ope-n end of the cannula. Said'eap 32 is providedwith an inwardly projecting lip 33 forming a centralopening through which the tube 25 may glide freely, but said cap serves to act as a stop against which the shoulder 27 of the curette strikes, as shown in Fig. 4, to limit the outward movement of the curette and trocar under ordinary operation. In this position of the parts, the plunger 34 carried by a lever 35 Y pivoted ati36 upon'a bracket 37 fixed to the cannula, is adapted to snap downward Vthrough one of the holes 29 and into the groove 28 of the trocar. A spring 38 'acts upon this lever tending to throw the plunger into locking position. In this position of the parts, the passageway outwardly through the cannula and outlet 11 is free and unobstructed for. normal drainage open ation. The lever 35 carries a thumb screw 39 which is adapted to be turned downwardly, as shown in Fig. 5, so that its lower end bears against the cannula and prevents the release of the plunger until this screw is Y again turned outwardly, as shown in Fig. -1l.
The manner of operation or manipulation of the apparatus may be brieliy summarized as follows: The cup 13 is adjusted along the cannula. and fixed in position thereon by means of the set screw 1S according to the depth the cannula is to be inserted into the against the linger piece 22, the rod and trccar head may be projected inwardly beyond the point of the cannula and curettc. lly adjusting the runner 24 away .from the linger piece 22, the length of the trocar beyond the cannula will be correspondingly decreased if desired. After the apparatus is inserted, as set forth, and bound to the patient for drainage operation, the curette and trocar will both be drawn outwardly until the shoulder 27 abuts against the cap lip 33, and the trocar head comes into contact with the shoulder 2T. Then by slight rotation if necessary the plunger 31 will drop into locking position holding the parts in this position with open drainage space along the cannula and outlet. If the cannula should become cccluded as may be detected in the practice of the invention, in accordance with the means set forth in the patent above referred to, the runner 31 is run outwardly against the linger piece 30, and the ruimer 24 is run against the finger piece 30 Vwith the finger piece 22 spaced outwardly therefrom. In this position of the parts (see Fig. when the plunger is released, the curette may be projected in advance of the trocar head to clear the passageway of any obstruction. When necessary to take the apparatus apart, the cap 32 is unscrewed and'with the plunger 34 released from the curette, the curette and trocar may be withdrawn directly from the cannula. The two parts of the trocar may then be easily separated at the joint 21 for thorough cleansing and sterilization. The curette 2G is detachably connected to the tube 25 at the shoulder 27. As sho-wn in Fig. 4, when the eurette and trocar head are locked in the outer end of the cannula, forming an airtight closure therefor, the rod 2Gb and tube 25 are preferably both unscrewed from their corresponding head parts so as to be out of the way during the drainage period. To insure that the trocar head 20a will not rotate during the screwing or unscrewing of the nipple 2l, the groove 218 is provided preferably with indentations, into which the plunger drops, as shown in Fig. 6.
l. The combination of a cannula, a trocar carried by the cannula, and comprising two separable parts, means to adjust the trocar so as to project the point thereof beyond the point of the cannula for making an incision, means to clamp the cannula to the patient for drainage operation, and means to secure one part of the trocar wholly within the outer end of the cannula when the other part is separated therefrom during said drainage operation.
2. The combination of a cannula, a trocar carried within the cannula and comprising a rod and a head detachably connected together, means to adjust the trocar longitudinally of the cannula to cause the point thereof to project beyond the point of the cannula for introducing the cannula, and means carried by the outer end of the cannula to loch the head of the trocar wholly within the outer end of the cannula when the rod is detached during drainage operation.
3. The combination of a cannula having a smooth cylindrical bore, a curette slidably iitted in said bore, a trocar slidably iitted within the curette, and means to adjust the trocar and curette independently of each other longitudinally of the cannula.
4.-. The combination of a cannula having a smooth cylindrical bore, a curette slidably fitted in said bore, means connected to the curette to move it longitudinally of the cannula, means to limit such movement of the curette, and a trocar slidably fitted within the curette and adjustable lengthwise thereof independently of the adjustments of the curette.
5. The combination of a cannula having a smooth cylindrical bore, a curette slidably fitted in said bore and movable outwardly along said bore, means carried by the outer end of the cannula 4to limit the outward movement of the curette, means carried by the cannula to prevent all movement of the curette when in its outer position, and a trocar carried within the curette and adjustable longitudinally thereof.
6. The combination with a cannula having a lateral outlet arranged intermediate its ends, of means carried by the cannula to facilitate the introduction of the point thereof into the patient, said means being movable thereafter outwardly to occupy a position between the outer end of the cannula and said outlet, and means projecting radially through the cannula to hold the last mentioned means in such outer position so as not to obstruct the drainage passageway.
7. The combination of a cannula having a smooth bore, a tube movably mounted within the bore and having an enlarged end constituting a curette fitted for snug slidable movement in said bore, said curette having a radial hole formed therein, means to draw the tube and curette outwardly, and a plunger carried adjacent the outer end of the cannula adapted to enter said hole to lock the curette in the outer end of the cannula.
8. The combination of a cannula having a straight smooth bore, a curette slidably fitted in said bore and having a radial hole therethrough, a trocar slidably iitted within the curette and having a depression therein adapted in one position to register with said hole, means to manipulate the curette and trocar independently of each other and both with respect to the cannula, a plunger carried by the cannula adapted to enter said hole and depression to lock the curette and trocar from longitudinal movement, and means to lock the plunger from accidental withdrawal from locking position.
HERMAN B. PHILIPS.
opies oi' this patent may be obtained for ve cents each, by addressing the Commissioner of latents, Washington, D. C.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2639484 *||May 12, 1949||May 26, 1953||George H Wartman||Embalming instrument|
|US3039468 *||Jan 7, 1959||Jun 19, 1962||Price Joseph L||Trocar and method of treating bloat|
|US3719186 *||Apr 22, 1971||Mar 6, 1973||Univ Alabama In Birmingham||Surgical instrument for placement of bone pins and holes therefor|
|US3762416 *||May 26, 1971||Oct 2, 1973||Nat Res Dev||Artery entry tool|
|US3884220 *||Sep 21, 1973||May 20, 1975||Leo J Hartnett||Method for injecting X-ray contrast media for venography of the female pelvis|
|US3957048 *||Nov 20, 1974||May 18, 1976||Jacobs Herbert V||Intravenous device|
|US4142517 *||Jul 23, 1976||Mar 6, 1979||Contreras Guerrero De Stavropo||Apparatus for extracting bone marrow specimens|
|US4535773 *||Mar 26, 1982||Aug 20, 1985||Inbae Yoon||Safety puncturing instrument and method|
|US4763667 *||Sep 19, 1986||Aug 16, 1988||Microvasive, Inc.||Tissue-penetrating catheter device|
|US5087080 *||May 18, 1990||Feb 11, 1992||Zimmer Inc.||Arthroscopic sheath with quick coupling socket|
|US5116353 *||Oct 5, 1990||May 26, 1992||United States Surgical Corporation||Safety trocar|
|US5129885 *||Feb 13, 1990||Jul 14, 1992||United States Surgical Corporation||Safety device for trocars and surgical instruments therefor|
|US5183464 *||May 17, 1991||Feb 2, 1993||Interventional Thermodynamics, Inc.||Radially expandable dilator|
|US5217441 *||Mar 27, 1992||Jun 8, 1993||United States Surgical Corporation||Trocar guide tube positioning device|
|US5226426 *||Dec 18, 1990||Jul 13, 1993||Inbae Yoon||Safety penetrating instrument|
|US5232450 *||Jul 7, 1992||Aug 3, 1993||United States Surgical Corporation||Safety device for trocars and surgical instruments thereof|
|US5250036 *||Nov 24, 1992||Oct 5, 1993||Mohammad Farivar||Intravenous catheter placement system|
|US5275611 *||Jul 13, 1992||Jan 4, 1994||Innerdyne Medical, Inc.||Tension guide and dilator|
|US5279593 *||Dec 12, 1991||Jan 18, 1994||Richard Wolf Gmbh||Trocar sleeve|
|US5295993 *||Apr 30, 1991||Mar 22, 1994||United States Surgical Corporation||Safety trocar|
|US5318585 *||Jun 7, 1993||Jun 7, 1994||United States Surgical Corporation||Safety trocar|
|US5320619 *||Dec 24, 1991||Jun 14, 1994||Badawi Radwan A||Laser dosimeter and positioner, and methods of constructing and utilizing same|
|US5330501 *||Feb 3, 1993||Jul 19, 1994||United States Surgical Corporation||Tissue gripping device for use with a cannula and a cannula incorporating the device|
|US5336206 *||Apr 12, 1993||Aug 9, 1994||United States Surgical Corporation||Trocar penetration depth indicator and guide tube positioning device|
|US5356421 *||Oct 7, 1992||Oct 18, 1994||United States Surgical Corporation||Safety trocar with locking handles|
|US5368574 *||Oct 1, 1992||Nov 29, 1994||Ethicon, Inc.||Percutaneous catheter introducer|
|US5370625 *||Apr 13, 1993||Dec 6, 1994||United States Surgical Corporation||Trocar guide tube positioning device|
|US5374252 *||Feb 1, 1994||Dec 20, 1994||Minnesota Mining And Manufacturing Company||Locking pneumoneedle|
|US5375588 *||Aug 17, 1992||Dec 27, 1994||Yoon; Inbae||Method and apparatus for use in endoscopic procedures|
|US5383881 *||Sep 22, 1993||Jan 24, 1995||United States Surgical Corporation||Safety device for use with endoscopic instrumentation|
|US5401247 *||Jan 6, 1994||Mar 28, 1995||Yoon; Inbae||Safety penetrating instrument|
|US5431635 *||Jun 24, 1993||Jul 11, 1995||Yoon; Inbae||Safety penetrating instrument having a triggered safety member for establishing an endoscopic portal in an anatomical cavity wall|
|US5431676 *||Mar 5, 1993||Jul 11, 1995||Innerdyne Medical, Inc.||Trocar system having expandable port|
|US5441513 *||Mar 12, 1992||Aug 15, 1995||United States Surgical Corporation||Retracting tip trocar assembly|
|US5458579 *||Nov 25, 1992||Oct 17, 1995||Technalytics, Inc.||Mechanical trocar insertion apparatus|
|US5466224 *||Jun 29, 1993||Nov 14, 1995||Yoon; Inbae||Safety penetrating instrument having a triggered portal sleeve for establishing an endoscopic portal in an anatomical cavity wall|
|US5486190 *||Dec 7, 1994||Jan 23, 1996||United States Surgical Corporation||Safety trocar|
|US5538509 *||Jan 31, 1994||Jul 23, 1996||Richard-Allan Medical Industries, Inc.||Trocar assembly|
|US5540648 *||Jul 13, 1994||Jul 30, 1996||Yoon; Inbae||Medical instrument stabilizer with anchoring system and methods|
|US5549564 *||Jun 7, 1993||Aug 27, 1996||Yoon; Inbae||Safety penetrating instrument|
|US5569288 *||Jan 6, 1994||Oct 29, 1996||Yoon; Inbae||Safety penetrating instrument|
|US5569289 *||Oct 4, 1994||Oct 29, 1996||Yoon; Inbae||Safety penetrating instrument with penetrating member and cannula moving during penetration and triggered safety member protusion|
|US5571134 *||Oct 24, 1994||Nov 5, 1996||Yoon; Inbae||Safety penetrating instrument with penetrating member and safety member moving during penetration and triggered safety member protrusion|
|US5573545 *||Sep 30, 1994||Nov 12, 1996||Yoon; Inbae||Safety penetrating instrument with safety member and cannula moving during penetration and triggered cannula and/or safety member protrusion|
|US5575804 *||Sep 6, 1994||Nov 19, 1996||Yoon; Inbae||Safety penetrating instrument with cannula moving during penetration and triggered safety member protrusion|
|US5578053 *||Sep 2, 1993||Nov 26, 1996||Yoon; Inbae||Safety needle instrument having a triggered safety member|
|US5584848 *||Dec 23, 1994||Dec 17, 1996||Yoon; Inbae||Safety penetrating instrument with penetrating member, safety member and cannula moving during penetration and triggered safety member protrusion|
|US5586991 *||Jan 6, 1994||Dec 24, 1996||Yoon; Inbae||Safety penetrating instrument|
|US5607439 *||Sep 30, 1994||Mar 4, 1997||Yoon; Inbae||Safety penetrating instrument with penetrating member moving during penetration and triggered safety member protrusion|
|US5645556 *||Jul 22, 1994||Jul 8, 1997||Yoon; Inbae||Safety penetrating instrument with triggered penetrating member retraction and single or multiple safety member protrusion|
|US5645557 *||Jul 22, 1994||Jul 8, 1997||Yoon; Inbae||Safety penetrating instrument with triggered penetrating member retraction and safety member protrusion|
|US5807402 *||Jul 7, 1997||Sep 15, 1998||Yoon; Inbae||Safety penetrating instrument with protective sheath, triggered penetrating member retraction and single and safety member protrusion|
|US5814058 *||Aug 14, 1996||Sep 29, 1998||Innerdyne, Inc.||Method and apparatus employing conformable sleeve for providing percutaneous access|
|US5836914 *||Sep 15, 1995||Nov 17, 1998||Becton Dickinson And Company||Method and apparatus for variably regulating the length of a combined spinal-epidural needle|
|US5855566 *||Jun 1, 1995||Jan 5, 1999||Urohealth, Inc. (California)||Trocar assembly|
|US5941852 *||Jun 1, 1995||Aug 24, 1999||Imagyn Medical Technologies California, Inc.||Trocar assembly|
|US6080174 *||Apr 19, 1995||Jun 27, 2000||Innerdyne, Inc.||Trocar system having expandable port|
|US6197041||Sep 15, 1993||Mar 6, 2001||United States Surgical Corporation||Trocar|
|US6298851 *||Sep 15, 1999||Oct 9, 2001||Gheorghe Parota||Emergency tracheotomy apparatus|
|US6325812||Jan 4, 2000||Dec 4, 2001||Innerdyne, Inc.||Trocar system having expandable port|
|US6494893||Jun 12, 2001||Dec 17, 2002||Innderdyne, Inc.||Trocar system having expandable port|
|US6497716||Jan 24, 1995||Dec 24, 2002||United States Surgical Corporation||Safety trocar|
|US7060052 *||Nov 26, 2003||Jun 13, 2006||Boston Scientific Corporation||Guidewire and catheter locking device and method|
|US7169159||Dec 23, 2002||Jan 30, 2007||United States Surgical Corporation||Safety trocar|
|US7294136||Sep 17, 2002||Nov 13, 2007||Innerdyne, Inc.||Trocar system having expandable port|
|US7449011||Jul 31, 2002||Nov 11, 2008||Tyco Healthcare Group Lp||Apparatus and method for providing percutaneous access and medicament to a target surgical site|
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|US7706861||Jun 28, 2006||Apr 27, 2010||Boston Scientific Scimed, Inc.||Guide wire insertion and re-insertion tools and methods of use|
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|US7914512||May 6, 2008||Mar 29, 2011||Tyco Healthcare Group Lp||Methods, systems, and kits for implanting articles|
|US7914555||Jan 13, 2006||Mar 29, 2011||Warsaw Orthopedic, Inc.||Expandable percutaneous sheath|
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|US8348892||Jan 14, 2011||Jan 8, 2013||Onset Medical Corporation||Expandable transluminal sheath|
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|US8888681||Feb 11, 2013||Nov 18, 2014||Boston Scientific Scimed, Inc.||Method and apparatus for biliary access and stone retrieval|
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|US20040172041 *||Nov 24, 2003||Sep 2, 2004||Gresham Richard D.||Sheath introduction apparatus and method|
|US20040199121 *||Jul 31, 2002||Oct 7, 2004||Thomas Wenchell||Apparatus and method for providing percutaneous access and medicament to a target surgical site|
|US20050124937 *||Dec 5, 2003||Jun 9, 2005||Kick George F.||Expandable percutaneous sheath|
|US20050125021 *||Jul 2, 2004||Jun 9, 2005||Nance Edward J.||Expandable percutaneous sheath|
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|US20100300451 *||Dec 2, 2010||Griffith Nathan C||Punch Dilator|
|WO1998039039A1 *||Mar 5, 1998||Sep 11, 1998||Fehrenbacher John W||Aortic cannula|
|U.S. Classification||604/165.2, 128/207.29, 604/117, 27/24.2|