|Publication number||US3721229 A|
|Publication date||Mar 20, 1973|
|Filing date||Apr 6, 1972|
|Priority date||Apr 6, 1972|
|Publication number||US 3721229 A, US 3721229A, US-A-3721229, US3721229 A, US3721229A|
|Original Assignee||Panzer N|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (8), Referenced by (75), Classifications (16)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent 1191 Panzer 1March 20, 1973  OBTURATOR DEVICE FOR 2,456,257 12/1948 HYSTEROSALPINGOGRAPHY AND .2 1 2;
3, 85,300 5 l9 THE LIKE 3,421,509 1/1969  Inventor: Norman Panzer, 7l Blanchard 3,459,175 8/1969 Road, South Orange, NJ. 07079 Primary Examiner--l(yle L. Howell 22 F l 72 1 1 ed l9 Attorney-Sydney B. Schlessel  Appl. No.: 241,770
,  ABSTRACT Cl 128/24 1 An obturator device for the injection of fluid into a 1 128/348 body cavity through a narrow passageway, comprising Int. Cl. an injection tube recip ocatively moveable through an Field of Search 128/2 A, 2 R, 241, obturating collar and secured thereto by an elastic 128/246 348-351, 266, 184 sleeve of intermediate enlarged diameter disposed around the tube, with the sleeve adapted to be  References C'ted distended to reduced diameter for movement of the UNITED STATES PATENTS tube through the passageway and, on release, to return to its natural expanded diameter thereby to lock the 526,353 9/1894 Lamb et al. ..128/24l tube to the passageway wall. 983,871 2/1911 Brin ..l28/244 989,550 4/1911 Aber ..128/245 X 11 Claims, 8 Drawing Figures PATENTEnuARzoma 3 1, 29
SHEEI 10F 2 "III/[III III/lull OBTURATOR DEVICE FOR IIYSTEROSALPINGOGRAPHY AND THE LIKE BACKGROUND OF THE INVENTION a. Field of the Invention.
This invention relates to the field of radiography, and more particularly to the provision of an obturator device for the obturation of a body cavity and the injection of a radiopaque substance therein for the purpose of making a radiogram, thereby to visualize the human organs. One example of such use is in hysterosalpingography, a radiographic procedure for visualizing the female organs of reproduction. A second example is radiography of the human colon, in a procedure professionally known as a barium enema. The essential object of the present invention, therefore is to provide a selfretaining obturator which will support itself within the passageway leading to the cavity by appropriate pressure against the passageway wall during the procedure, without damage or injury to the wall and without discomfort to the patient, and which can easily and conveniently be withdrawn, following completion of the procedure, by release of the sustaining pressure. In supporting itself against the passageway wall it also acts as an effective fluid seal against leakage of the radiopaque fluid during the procedure.
b. Prior Art In the present state of the art, one means for the performance of an hysterosalpingography requires the use of a tenaculum to grasp the cervix, a procedure which is traumatizing thereto and leads to unnecessary bleeding and susceptability to infection. A metal cannula is inserted into the cervical canal and an adjustable olive tip used to obturate the canal. Too often the length of the cervical canal is incorrectly estimated and the metal tip introduced into the uterine cavity, where its presence interferes with the radiologists interpretation of the radiogram. Other disadvantages with this device are well recognized.
Another device presently used for hysterosalpingography employs a core or cone, which is threaded, or rotated, into the cervical canal, and held in place by the engagement of the core teeth with the sensitive wall of the cervical canal, with concomitant hazards of hemorrhage, inflamation and infection.
Prior art for obturating the rectum in providing a barium enema involves the use of an inflatable, balloon-like, cuff which is secured around the rectal nozzle near its discharge opening and which, with the insertion of the nozzle through the anal opening, is stuffed into the rectum and thereafter inflated with air by means of a tube extending therefrom out through the anal opening, to retain the nozzle within the rectum and seal off the anal canal. Such a device has been known to rupture the rectum, causing serious complications, to cause air-embolism, and, at the least, obvious discomfort to the patient.
BRIEF SUMMARY OF THE INVENTION.
The forementioned disadvantages found with the prior art are obviated by my invention, which provides for an injection tube reciprocatively disposed through an obturating collar and provided with an elastic sleeve encircling the tube between its discharge tip and the collar, the sleeve being bonded at its upper end to and around the tube adjacent its discharge tip. and to and around the collar at its other end, with the sleeve having a substantially thicker area intermediate its ends to define an enlarged circumference. When the tube is pushed up through the collar the sleeve is distended to define a uniform, reduced circumference, and when the tube is released the elastic sleeve returns to its normal shape, with an intermediate enlarged circumference. In distended state the sleeve permits the tube to be inserted through a narrow passageway or canal. In released state the enlarged circumference of the sleeve presses resiliently against the canal wall to hold the tube firmly in its inserted position by frictional engage ment thereagainst, as well as providing a fluid seal therewith.
The prime object of my invention, therefore, lies in the provision of an obturator device for hysterosalpingography and the like, wherein the injection tube is held in locked position within the penetrated passageway leading to the body cavity by the pressure of an elastic sleeve, mounted around the tube and having an enlarged circumference, against the wall of the passageway.
A second important object of my invention lies in the provision of an obturator device as above described, wherein the injection tube is freely movable within the passage, by the distention of the elastic sleeve to a reduced uniform diameter, to enter the passageway and to be withdrawn therefrom.
A third important object of my invention lies in the provision of an obturator device as above described, wherein the device is provided with an obturating collar disposed to limit introduction of the tube into the passageway and to fix the extent of penetration.
A fourth important object of my invention lies in the provision of an obturator device of the type described wherein the engagement of the elastic sleeve against the passageway wall provides an effective fluid seal therewith.
Still another important object of my invention lies in the provision of an obturator device as above described, which is inexpensive to manufacture and simple to use, and which is disposable following a single use, yet adapted for repeated usage with proper sterilization.
These and other salient objects, advantages and functional features of my invention, together with the novel features of construction, composition and arrangement of parts, will become more readily apparent from an examination of the following specification, taken with the accompanying drawings, wherein:
FIG. 1 is a side view of a preferred embodiment of my invention in use for hysterosalpingography, which is shown in position within a cervical canal;
FIG. 2 is an enlarged, top perspective view of the embodiment of FIG. 1, partly broken away;
FIG. 3 is a cross-sectional view of the embodiment of FIG. 2, shown in position within a cervical canal in the process of of insertion;
FIG. 4 is a view similar to FIG. 3, showing the embodiment thereof locked to the wall of the cervical canal;
FIGS. 5 and 6 are views similar, respectively, to FIGS. 3 and 4, of a modified embodiment of my invention; and
FIGS. 7 and 8 are views, similar to FIGS. 3 and 4, showing a second modified embodiment of my invention, with respect to rectal disposition for a barium enema.
Similar reference characters designate similar parts throughout the different views.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Illustrative of the embodiment shown by FIGS. l-4, inclusive, for use in hysterosalpingography, my obturator device 10 comprises an elongated tube 12 having a discharge opening or tip 14 in its upper end, and open at its other end' 16 for engagement, by means of a coupling 18, to the discharge tube 20 of a syringe 22 filled with a radiopaque fluid, such as an iodinated compound or one of many such contrast media presently available for radiography. The tube 12 is disposed through a central opening 24 of an obturating collar 26 for freely reciprocative movement therethrough. An elastic sleeve 28 is mounted around the tube 12 and is bonded at one end thereof to and around the tube 12 adjacent its discharge tip 14, and at its other end to the upper surface 30 of the collar 26, thereby joining the tube 12 to the collar 26. The sleeve 28 is substantially thicker in cross-section intermediate its ends to define an enlarged intermediate circumference32 in its normal state of repose, as shown in FIG. 2. The tube 12 is further provided with an integral bead 34 disposed beneath the sleeve 28 immediately below its union with the tube 12, as shown in FIGS. 3 and 4. A booster element 36 is slideably mounted around the tube 12 and comprises a cylinder open at both ends and having an outer diameter smaller than the diameter of the central opening 24 in the collar 26, so that the booster 36 may be passed through the opening 24 to engage the tube bead 34 within the sleeve 28.
The areas involved in the use of this embodiment of my invention comprise the human vaginal canal 38, a passageway normally between 3 to inches in length, and the uterus 40, into which the vaginal canal 38 leads. The uterus 40 is a flat, pear-shaped organ about 4 inches in length, whichincludes a cervix 42 about one and one-quarter inches in length and provided with a central canal 44 leading into the uterus'40, and having a diameter normally between 3-5 mm, the larger diameter being centrally located within the canal 44 and called the spindle 46.
In the composition of the above described embodiment, therefore, I prefer the tube 12, for the conveyance of the radiopaque fluid into the uterus 40, to be composed of a transparent, flexible plastic material, such as a narrow gauge, thin-walled polyethelene, about 2 mm in diameter and at least to 12 inches in length, the collar 26 of a transparent, rigid plastic material, preferably saucer-shaped to fit snugly against the cervical 0s 48, as shown in FIGS. 3 and 4, and about one inch in diameter, and the sleeve 28 of latex, having,
the canal spindle 46 so as to frictionally engage the latter in untensioned state of the sleeve 28.
OPERATION OF THE PREFERRED EMBODIMENT In the operation of my invention, as above disclosed, the vaginal canal 38 is stretched by means of a speculum(not shown) as is well known in the art. The tube 12 is then engaged, by means of the coupling 18 to the syringe 22 containing 10 cc. of radiopaque fluid, and the syringe plunger 50 slightly depressed to fill the tube 12 and clear all air therefrom. The booster element 36 is urged against the bead 34 to lift the tube 12 and stretch the sleeve 28 to a uniform outer diameter, and held in such position. Pressing the patients abdomen flat to immobilize the uterus 40, the physician inserts the tube 12 and booster 36 through the vaginal canal 38 and past the cervical os 48 into the cervical canal 44 until the collar 26 abuts the cervical os 48 and the sleeve 28 is fully distended within the canal 44. The booster 36 is then slid down along the tube 12, releasing the sleeve 28 to resume its natural shape, the enlarged circumference 32 expanding against the spindle 46 of the canal 44 to lock the tube 12 into position and effectively seal the canal 44 from leakage of the radiopaque fluid, with the collar 26 in abutment against the cervical os 48. The radiopaque fluid is then injected into the uterus 40 from the syringe 22 and the radiogram taken. Following completion of the radiography the booster 36 is once forced against the bead 34 to distend the sleeve 28 and reduce its diameter, and the tube 12 is easily withdrawn from the cervical and vaginal canals 38 and 44, and from the patient, with the radiopaque fluid permitted to drain from the patient and the area cleansed by a douche.
MODIFIED EMBODIMENT OF THE INVENTION In FIGS. 5 and 6 there is shown a modified embodiment 10' of my invention, likewise for use in hysterosalpingography. In this embodiment 10' the tube 12' is composed of a more rigid plastic material, although of the same length and gauge as the prior embodiment. The head 34 and booster element 36 of the latter, however, have been eliminated. Instead, the collar 26' is provided with a circular guide wall 52 extending from and around the central opening 24' in the collar 26, and encircling the tube 12' within the sleeve 28, In this embodiment the sleeve 28 is distended to a reduced uniform diameter by manual extension of tube 12' through collar 26 as it enters the cervical canal 44 and the collar 26' abuts the cervical 0s 48. After the tube 12' has been suitably inserted it is released, causing the sleeve 28 to contact to its normal shape, thereby expanding centrally to resiliently press against the cervical spindle 46 and thus lock the tube 12. firmly in position therein and effectively seal the canal 44 from fluid leakage. Other procedures are the same as those heretofore described. In removal of the tube 12' following completion of the radiography, the tube 12' is drawn out of the cervical canal 44, and as it is withdrawn the sleeve 28 stretches to its reduced diameter, enabling it to disengage from the spindle 46 easily and without discomfort.
SECOND MODIFIED EMBODIMENT In FIGS. 7 and 8 there is shown a further modification of my invention, for use in colon radiography. As is obvious from the nature of the body area involved, the injection tube 12" is composed of a rigid plastic material or the like, and is topped by an olive-pitshaped nozzle 54 having a plurality of openings 56, with the other end of the tube 12 connected to a suitable enema apparatus (not shown) containing a suitable radiopaque liquid, such as a barium sulphate suspension. The tube 12" is slideably mounted in an obturating collar 58 having a convex upper surface 62 and a central opening 60'therethrough, the collar 58 extending rearwardly to a reduced lower surface 64 and being intermediately formed with a deep peripheral groove 66 adapted to act as a gripping means for the collar 58. The collar 58 is joined to the tube 12" by an elastic sleeve 68 disposed around the tube 12'', the sleeve 68 being bonded to and around the upper surface 62 of the collar 58 at one end thereof and to and around the tube 12", adjacent its nozzle 54, at its other end. The sleeve 68 is substantially thicker in cross-section at its upper one half to define an enlarged circumference 72 in its normal state, as shown in FIG. 8. Similar to the embodiment of FIGS. 5 and 6, the collar 58 is provided with an integral wall 74 extending from and around the opening 60 therein, and encircling the tube 12" within the sleeve 68, adapted to act as a guide for the tube 12".
In the construction and composition of this embodiment I prefer the tube 12" to be composed of a rigid plastic material approximately three-eighth inch in diameter, with the collar 58 and its integral wall 74 of the same material and the collar about one and onehalf inches in diameter. The elastic sleeve 68 should be at least two inches in length, with its upper edge bonded to and around the tube 12" just below the nozzle 54, so that the tip of the nozzle 5d extends from the collar 58 approximately three inches in repose. The upper one half of the sleeve 68, having the enlarged circumference 72 in untensioned condition, is adapted to have said enlarged circumference reduced, under tension, to an uniform diameter for the sleeve 68 in tensioned condition, as shown in FIG. '7. Other material of similar properties may be substituted in place of the described materials, as is obvious.
OPERATION OF THIS EMBODIMENT In the operation of the embodiment of a barium enema, the tube 12" is coupled to a syringe (not shown) containing the barium sulphate or other radiopaque liquid and cleared. The collar 5% is then firmly grasped at its finger groove 66 by the technician and the tube 12" forced through the collar 58 to distend the sleeve 68 to a uniform diameter, as shown in FIG. 7, and the tube 12" inserted through the anal opening 76 and past the external sphincter 78 and internal sphincter 80 and to clear the anal canal 82, which is approximately one inch in length, until the collar 58 abuts the anal opening 76, as shown in FIG. 7. The tube 12" is then released, causing the sleeve 68 to contract to its normal shape, whereby the enlarged circumference 72 resiliently presses against the internal sphincter 80 above the anal canal 82, thereby holding the nozzle 54 firmly within the rectum and forming a fluid seal therewith at such point. The radiopaque solution is then discharged through the rectum 84 to enter the colon(not shown), and the radiogram taken. On completion of the radiography the obturator device 10" is removed by once again forcing the tube 12" upwards to stretch the sleeve 58 to release its abutment against the internal sphincter 80, whereby the tube 12" is easily removed, and the radiopaque solution discharged.
From the foregoing it is to be noted that the divers embodiments of my invention, because of the extremely low cost of production, are intended to be disposable, that is to say, adapted for one-time use only. However, they are adaptable, if desired, for repeated usage with appropriate sterilization, such as, for example with Gamma ray radiation.
It is also to be recognized that the embodiments shown and described are by way of illustration and not of limitation, and that various changes may be made in the construction, composition and arrangement of parts without limitation upon or departure from the spirit and scope of the invention, or sacrificing any of the advantages thereof inherent therein, all of which are herein claimed.
Having described my invention, I claim:
1. An obturator device for the injection of radiopaque substance or the like into a body cavity, through a passageway leading thereinto, comprising an obturating collar provided with a central opening, a tube slideably disposed through the opening and provided with discharge means in the end thereof extending through the collar and open at its other end, and elastic distensible means disposed between the collar and the discharge means said distensible means fixedly attached to said tube adjacent said discharge means and fixedly attached to said collar to thereby form means whereby further extension of the tube through the collar reduces the diameter of the elastic distensible means to permit the tube to enter the passageway, and partial retraction of the tube enlarges the diameter of the distensible means to permit said distensible means to engage the passageway wall when inserted into the passageway to secure the tube therein and to provide a fluid seal therewith.
2. An obturator device as described in claim 1, the discharge means comprising an opening in the end of the tube.
3. An obturator device as described in claim 1, the discharge means comprising a plurality of opening in the tube end.
4. An obturator device as described in claim 2, the distensible means comprising an elastic sleeve disposed around the tube portion extending through the collar, with one end of the sleeve bonded to and around the tube adjacent its discharge opening and the other end thereof bonded to the collar around its central opening, to limit extension of the tube therethrough in repose, the sleeve being thicker in cross-section intermediate its ends to define an enlarged circumference adapted to be reduced by distension of the sleeve.
5. An obturator device as described in claim 4 in combination with a booster element comprising a hollow cylinder slideably disposed around the tube and having an outer diameter smaller than the diameter of the collar opening and adapted to pass therethrough for selective extension of the tube.
6. An obturator device as described in claim 5, the tube being further provided with a peripheral bead integral therewith and disposed beneath the sleeve adjacent to its union with the tube and adapted to be abutted by the booster element in the selective extension of the tube through the collar.
7. An obturator device as described in claim 4, the collar being further provided with a circular wall around its central opening and disposed around the tube beneath the sleeve.
8. An obturator device as described in claim 3, the distensible means comprising an elastic sleeve disposed around the tube portion extending through the collar,
with one end of the sleeve bonded to and around the tube adjacent its discharge openings and the other end thereof bonded to the collar around its central opening,
to limit extension of the tube therethrough in repose, the sleeve being thicker in cross-section intermediate its ends to define an enlarged circumference adapted to be reduced by distension of the sleeve.
9. An obturator device as described in claim 8, the collar being further provided with a circular wall around its central opening and disposed around the tube beneath the sleeve.
10. An obturator device as described in claim 9, the collar being extended rearwardly of the sleeve to define a plug formed with gripping means adjacent its rear surface.
1 1. An obturator device as described in claim 10, the gripping means comprising a peripheral groove in the circular wall of the plug.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US526353 *||Jan 19, 1894||Sep 18, 1894||Vaginal syringe|
|US983871 *||Mar 27, 1909||Feb 14, 1911||Joseph J Brin||Syringe.|
|US989550 *||Jul 27, 1910||Apr 18, 1911||David L Aber||Vaginal syringe.|
|US2456257 *||Dec 4, 1946||Dec 14, 1948||Curry William R||Flushing device for douche syringes|
|US2813531 *||Sep 26, 1955||Nov 19, 1957||Albert F Lee||Cannula|
|US3385300 *||Aug 10, 1965||May 28, 1968||Holter Company||Cervical cannula|
|US3421509 *||Dec 17, 1965||Jan 14, 1969||John M Fiore||Urethral catheter|
|US3459175 *||Apr 8, 1966||Aug 5, 1969||Miller Roscoe E||Medical device for control of enemata|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3871374 *||Sep 6, 1973||Mar 18, 1975||Population Res Inc||Dispensing instrument|
|US3970090 *||Feb 3, 1975||Jul 20, 1976||Physio Medics, Inc.||Catheter|
|US3972331 *||Jan 24, 1975||Aug 3, 1976||Population Research Incorporated||Dispensing catheter|
|US4338925 *||Dec 20, 1979||Jul 13, 1982||Jo Miller||Pressure injection of bone cement apparatus and method|
|US4747823 *||Jun 18, 1986||May 31, 1988||Buchanan John M||Cannulae|
|US4815454 *||Nov 16, 1987||Mar 28, 1989||Dozier Jr John K||Apparatus and method for injecting bone cement|
|US5137520 *||Apr 24, 1991||Aug 11, 1992||Wayne Maxson||Cannula skirt|
|US5146925 *||Nov 21, 1990||Sep 15, 1992||Lamar Snow||Cholangiocatheter and delivery system|
|US5176647 *||Jun 3, 1991||Jan 5, 1993||Knoepfler Dennis J||Catheter device for performing a cholangiogram during a laparoscopy surgery|
|US5188100 *||Sep 9, 1991||Feb 23, 1993||New York University||Apparatus for facilitating tracheostomy tube replacement|
|US5259836 *||Dec 21, 1990||Nov 9, 1993||Cook Group, Incorporated||Hysterography device and method|
|US5263939 *||Oct 9, 1992||Nov 23, 1993||Surgin Surgical Instrumentation, Inc.||Retainer for laparoscopic cannula|
|US5267968 *||Jul 9, 1992||Dec 7, 1993||Russo Ronald D||Retention bolster for percutaneous catheters|
|US5383866 *||Sep 15, 1993||Jan 24, 1995||Chang; Hau H.||Occlusion ureteral catheter for retrograde pyelography|
|US5423777 *||Oct 27, 1993||Jun 13, 1995||Tajiri; Akira||Punctum plug|
|US5431654 *||Sep 30, 1991||Jul 11, 1995||Stryker Corporation||Bone cement injector|
|US5464409 *||Dec 9, 1993||Nov 7, 1995||Mohajer; Reza S.||Uterine manipulator and protector|
|US5470320 *||Apr 10, 1992||Nov 28, 1995||Tiefenbrun; Jonathan||Method and related device for obtaining access to a hollow organ|
|US5538509 *||Jan 31, 1994||Jul 23, 1996||Richard-Allan Medical Industries, Inc.||Trocar assembly|
|US5558136 *||Jan 31, 1994||Sep 24, 1996||Stryker Corporation||Bone cement cartridge with secondary piston|
|US5624399 *||Sep 29, 1995||Apr 29, 1997||Ackrad Laboratories, Inc.||Catheter having an intracervical/intrauterine balloon made from polyurethane|
|US5752970 *||Sep 18, 1996||May 19, 1998||Yoon; Inbae||Cannula with distal end valve|
|US5758663 *||Apr 5, 1996||Jun 2, 1998||Wilk; Peter J.||Coronary artery by-pass method|
|US5766249 *||Dec 4, 1996||Jun 16, 1998||Griffith; Donald P.||Tissue bondable cystostomy tube and method of cystostomy tube implantation|
|US5797888 *||Jul 25, 1996||Aug 25, 1998||Yoon; Inbae||Cannula with universal seal and method of introducing instruments therethrough|
|US5855566 *||Jun 1, 1995||Jan 5, 1999||Urohealth, Inc. (California)||Trocar assembly|
|US5931730 *||Jun 6, 1997||Aug 3, 1999||Meat Processing Service Corporation||Secured sanitary catheter|
|US5997506 *||Dec 23, 1998||Dec 7, 1999||Muzzammel; Mohiuddin M.||Hysterosonogram/hysterosalpingogram cannula with soft seal|
|US6080129 *||Dec 23, 1996||Jun 27, 2000||Conceptus, Inc.||Method and apparatus for performing hysterosalpingography|
|US6126594 *||Jul 21, 1998||Oct 3, 2000||Bayer; Izhack||Anoscope for internal hemorrhoidectomy|
|US6139538 *||Oct 6, 1997||Oct 31, 2000||Iotek, Inc.||Iontophoretic agent delivery to the female reproductive tract|
|US6913611||Dec 3, 2002||Jul 5, 2005||Gerard Cappiello||Rectosigmoid manipulator apparatus|
|US7207988||Jun 26, 2003||Apr 24, 2007||Medtronic Inc.||Method and apparatus for providing intra-pericardial access|
|US7534250 *||Jun 27, 2003||May 19, 2009||Cook Critical Care||Introducer sheath|
|US7549997 *||May 28, 2004||Jun 23, 2009||Davis Jr Thomas William||Body canal dilation system|
|US7798998||Oct 6, 2006||Sep 21, 2010||Surgiquest, Inc.||Elastically deformable surgical access device|
|US7806870 *||Apr 13, 2007||Oct 5, 2010||Surgiquest, Incorporated||Elastically deformable surgical access device having telescoping guide tube|
|US7857818 *||Mar 30, 2007||Dec 28, 2010||Warsaw Orthopedic, Inc.||Method and apparatus for delivering an intervertebral disc implant|
|US8000807||Jun 15, 2010||Aug 16, 2011||Medtronic, Inc.||Methods and systems for accessing the pericardial space|
|US8157745||Dec 6, 2005||Apr 17, 2012||Benedictus Christiaan Schoot||Device and method for examination of a body cavity|
|US8475468||Jun 26, 2003||Jul 2, 2013||Medtronic, Inc.||Method and apparatus for providing intra-pericardial access|
|US8506537 *||Oct 14, 2002||Aug 13, 2013||Coloplast A/S||Sealing device|
|US8795235||Oct 10, 2009||Aug 5, 2014||Surgiquest, Inc.||Devices for and methods of performing minimally-invasive surgical procedures through a single incision|
|US8852173||Oct 14, 2011||Oct 7, 2014||Medtronic, Inc.||Methods and systems for providing therapies into the pericardial space|
|US20030093104 *||Sep 25, 2002||May 15, 2003||Bonner Matthew D.||Methods and apparatus for providing intra-pericardial access|
|US20040024435 *||Jun 26, 2003||Feb 5, 2004||Leckrone Michael E.||Method and apparatus for providing intra-pericardial access|
|US20040049222 *||Jun 27, 2003||Mar 11, 2004||Schaeffer Darin G.||Introducer sheath|
|US20040087938 *||Jun 26, 2003||May 6, 2004||Medtronic, Inc.||Method and apparatus for providing intra-pericardial access|
|US20040106943 *||Dec 3, 2002||Jun 3, 2004||Gerard Cappiello||Rectosigmoid manipulator apparatus|
|US20040193108 *||Apr 8, 2004||Sep 30, 2004||Bernard Ackerman||Access catheter apparatus for use in minimally invasive surgery and diagnostic procedures in the uterus and fallopian tubes|
|US20040267198 *||Oct 14, 2002||Dec 30, 2004||Jan Torstensen||Sealing device|
|US20050154370 *||Dec 1, 2004||Jul 14, 2005||Medtronic, Inc.||Methods and systems for providing therapies into the pericardial space|
|US20050240211 *||Mar 23, 2005||Oct 27, 2005||Stefan Sporri||Apparatus and method for selectably treating a fallopian tube|
|US20050267509 *||May 28, 2004||Dec 1, 2005||Davis Thomas W Jr||Body canal dilation system|
|US20070198025 *||Mar 30, 2007||Aug 23, 2007||Trieu Hai H||Method and apparatus for delivering an intervertebral disc implant|
|US20080086080 *||Apr 13, 2007||Apr 10, 2008||Surgiquest, Incorporated||Elastically deformable surgical access device having telescoping guide tube|
|US20080086167 *||Oct 6, 2006||Apr 10, 2008||Dominick Mastri||Elastically deformable surgical access device|
|US20080275363 *||Dec 6, 2005||Nov 6, 2008||Benedictus Christiaan Schoot||Device and Method for Examination of a Body Cavity|
|US20100185058 *||Oct 10, 2009||Jul 22, 2010||Dominick Mastri||Devices for and Methods of Performing Minimally-Invasive Surgical Procedures Through a Single Incision|
|US20100249729 *||Jun 15, 2010||Sep 30, 2010||Medtronic, Inc.||Methods and Systems for Accessing the Pericardial Space|
|US20110040342 *||Oct 21, 2010||Feb 17, 2011||Trieu Hai H||Method and apparatus for delivering an intervertebral disc implant|
|US20130053784 *||Nov 4, 2011||Feb 28, 2013||Russell A. Houser||Methods and devices for sutureless coupling of a device insertable within a mammalian body, with anchoring, stabilization and integrated strain relief features|
|US20140336574 *||Dec 14, 2012||Nov 13, 2014||Musc Foundation For Research Development||Double balloon catheter|
|DE3315934A1 *||May 2, 1983||Nov 15, 1984||Boehringer Ingelheim Kg||Intrauterine catheter|
|DE3620443A1 *||Jun 18, 1986||Feb 5, 1987||John Mckenzie Buchanan||Flexible kanuele fuer chirurgische zwecke|
|EP0122571A1 *||Apr 7, 1984||Oct 24, 1984||Amnon Makler||Device for injecting material directly into uterine cavity|
|EP2158859A1 *||Oct 11, 2006||Mar 3, 2010||Tyco Healthcare Group Lp||Trocar anchor|
|WO1990013272A1 *||May 1, 1989||Nov 15, 1990||M.D. Engineering, Inc.||Female condom|
|WO1993004719A1 *||Sep 9, 1992||Mar 18, 1993||New York University||Method and apparatus for facilitating tracheostomy tube replacement|
|WO1998054974A2 *||Jun 5, 1998||Dec 10, 1998||Meat Processing Service Corporation||Secured sanitary catheter|
|WO1998054974A3 *||Jun 5, 1998||May 14, 1999||Meat Processing Service Corp||Secured sanitary catheter|
|WO2004028613A3 *||Sep 25, 2003||Jul 29, 2004||Medtronic Inc||Method and apparatus for providing intra-pericardial access|
|WO2006062395A1 *||Dec 6, 2005||Jun 15, 2006||Benedictus Christiaan Schoot||Device and method for examination of a body cavity|
|WO2007071381A3 *||Dec 19, 2006||Aug 30, 2007||Ethicon Gmbh||Anal pressure measuring adapter|
|WO2008042005A1||Jan 30, 2007||Apr 10, 2008||Surgiquest, Incorporated||Elastically deformable surgical access device|
|U.S. Classification||600/435, 604/104, 604/278, 604/174, 606/198|
|International Classification||A61B17/34, A61M31/00, A61M25/02, A61M25/04|
|Cooperative Classification||A61B2017/3488, A61B2017/3492, A61B2017/3419, A61B2017/3484, A61M25/04, A61M31/00|