US3812860A - Retention catheter - Google Patents

Retention catheter Download PDF

Info

Publication number
US3812860A
US3812860A US00347996A US34799673A US3812860A US 3812860 A US3812860 A US 3812860A US 00347996 A US00347996 A US 00347996A US 34799673 A US34799673 A US 34799673A US 3812860 A US3812860 A US 3812860A
Authority
US
United States
Prior art keywords
tube
sleeve
catheter
aperture
distal end
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
Application number
US00347996A
Other languages
English (en)
Inventor
J Gilbert
A Panagrossi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRBARD Inc A CORP OF NJ
Original Assignee
International Paper Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Paper Co filed Critical International Paper Co
Priority to US00347996A priority Critical patent/US3812860A/en
Priority to CA194,311A priority patent/CA1034461A/fr
Priority to GB1309374A priority patent/GB1467976A/en
Application granted granted Critical
Publication of US3812860A publication Critical patent/US3812860A/en
Assigned to C.R.BARD, INC., A CORP. OF NJ. reassignment C.R.BARD, INC., A CORP. OF NJ. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNATIONAL PAPER COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A61M25/10—Balloon catheters
    • A61M25/1027—Making of balloon catheters
    • A61M25/1034—Joining of shaft and balloon

Definitions

  • the catheter is comprised of an extruded tube with a funnel at one end and, at the other end, a closed end sleeve peripherally bonded to the tube and having a substantially solid tip.
  • the method of manufacture includes the step of radially compressing the tube and sleeve while bonding.
  • a catheter Once a catheter has been passed through the urinary tract and inserted into the bladder, it is generally both medically desirable and necessary to have the catheter retained in the urinary tract with the distal end of the catheter positioned within the bladder.
  • Catheters which are designed for such a function are called urinary retention catheters and are generally provided with some means to promote retention. Typically, this retention capability is provided by including an inflatable balloon at the distal end of the catheter. During insertion, the balloon is deflated. After the distal end of the catheter is positioned within the bladder, the balloon is inflated bypassing a fluid, typically water, through a passage within the catheter which is referred to as an inflation lumen. When the balloon is inflated, the inflation lumen is sealed and the inflated balloon within the bladder insures retention. Thereafter, the bladder may drain through a second passage within the catheter, i.e. the drainage lumen.
  • a fluid typically water
  • catheters are generally referred to by a name associated with their function, e.g. urinary catheters, tracheal catheters, venous catheters, etc. While all such catheters must be fabricated so as to insure the safety and comfort of the patient, the physiological demands imposed upon a urinary retention catheter are particularly severe and appear to result in conflicting design criteria. For example, the comfort of the patient dictates that a urinary retention catheter be as soft and as flexible as possible.
  • such a catheter must be sufficiently rigid to insure that as it traverses the urinary tract, the catheter tube will not bend to an extent which results in occluding or reducing the size of the drainage lumen and the inflation lumen.
  • the outer diameter of the catheter be as small as possible while the diameter of the drainage lumen be as large as possible.
  • the maximum outer diameter of the catheter is substantially defined by the diameter of the urinary tract and the comfort of the'patient while the contractive forces which are exerted on the catheter by the urinary tract substantially define a minimum wall thickness between the drainage lumen and the exterior of the catheter.
  • the balloon and its proper inflation are of substantial concern to both the patient and the physician.
  • the balloon be so constructed and arranged that it can be inflated with a minimum inflation pressure.
  • Such an objective is desirable because the maximum inflation pressure required to inflate a balloon will be the determining factor with respect to the minimum wall thickness surrounding the inflation lumen. Since one desires to maximize the size of the drainage lumen and since the area occupied by the inflation lumen diminishes the size of the drainage lumen, it follows that one wishes to utilize a minimum wall thickness for the inflation lumen and, therefore, the balloon construction should be such as to require a minimum pressure for inflation.
  • a urinary retention catheter having a balloon which will inflate with a minimum pressure
  • the resulting structure may, and often does, possess undesirable features.
  • a soft and pliant material may be used for the balloon.
  • urinary retention catheters must not only meet or exceed the various medical and patient oriented criteria discussed above but, in addition, such a catheter must be of a construction which lends itself to a method of high volume, low cost manufacture. Such manufacturing criteria are particularly significant with respect to urinary retention catheters since tolerances are critical yet the cost of the resulting product must be consonant with the disposable nature of the product.
  • the invention disclosed herein relates to a novel urinary retention catheter and the method of manufacturing such a catheter.
  • the tip portion which is abuttingly affixed to the tube or body portion, is provided with a drainage lumen that must be aligned with the drainage lumen in the body of the catheter. Because of this construction, a number of problems arise both in the manufacture of the catheter and in-the use thereof. For example, as previously stated, it is desired that the pressure required to inflate a balloon should be as low as possible and thus the balloon material should be soft and relatively elastic. However, in a catheter construction of the type disclosed by Birtwell, the tip and balloon are molded as one piece and, therefore, the tip will have the same mechanical properties as the balloon.
  • the tip may deflect and bend during insertion, i.e., the tip portion does not possess the required rigidity.
  • any bending of the tip is especially deleterious because of the butt joint connection between the tip and the body, i.e., any bending of the tip will tensionally stress the bond between the tip and the body with the probable result of a failure of the bond.
  • the tip in the Birtwell construction includes a drainage lumen
  • assembly of the tip and the tube is exacting if a misalignment is to be avoided'
  • the problem of avoiding a misalignment during the assembly of the tip and tube is economically significant since the avoidance of such misalignment requires that one must resort to either a manual assembly or a sophisti cated mechanical assembly.
  • the improved retention type catheter comprises an extruded silicone rubber tube with a funnel secured to one end and a closed end sleeve disposed around the other end.
  • the sleeve has a modulus of elasticity which is less than the modulus of elasticity of the tube.
  • the tip of the closed end sleeve is substantially solid in cross section and has a rounded exterior and an interior which includes a shoulder which substantially abuts the end of the extruded tube.
  • the sleeve is peripherally bonded to the tube so as to form a balloon section.
  • the tube is provided with longitudinal drainage and inflation lumens, the distal portion of the inflation lumen being plugged.
  • the outer diameter of the tube may be reduced in the area where the sleeve is bonded to the tube.
  • the sleeve is bonded to the tube with an uncured, catalyzed, heat curable silicone rubber.
  • the tube is ground to provide a shoulder in the balloon forming region for additional strength.
  • the bond between the tube and the sleeve may be strengthened by providing a protuberance on the interior of the tip which is received in the drainage lumen.
  • Also disclosed is a method of manufacturing such an improved retention type catheter which includes the step of radially compressing the tube and the sleeve during the bonding thereof.
  • FIG. 1 is a sectional view of one embodiment of the instant invention.
  • FIG. 2 is a sectional view taken along the section line 2--2 of FIG. 1.
  • FIG. 3 is a sectional view taken along the section line 3-3 of FIG. 1.
  • FIG. 4 is a fragmentary, exploded sectional view of one part of the catheter shown in Fig. 1.
  • FIG. 5 is a sectional view of another embodiment of the instant invention.
  • Fig. 6 is a view, in section, of an apparatus used in the novel method of manufacture disclosed herein.
  • FIG. 7 is a sectional view of another apparatus used in the practice of the method disclosed herein.
  • FIG. 8 is an exploded, fragmentary sectional view of one part of the catheter shown in FIG. 5.
  • the catheter shown in FIG. 1 includes an extruded tube 12 which, preferably,is silicone rubber.
  • the tube 12 includes a drainage lumen 14 and an inflation lumen 15 both of which extend longitudinally for the entire length of the tube 12.
  • the use of an extruded tube is preferred, from a manufacturing point of view, because the tube can be extruded in, essentially, an infinite length and later cut to the desired length.
  • the tube since the tube is continuously extruded, the tube intrinsically has a uniform diameter.
  • the extrusion die is sized to produce a catheter tube 12 of the desired diameter.
  • one end of the tube is reduced in diameter.
  • the preferential method step for obtaining the aforementioned diameter reduction is a grinding step.
  • the manufacturer of the catheter disclosed therein would thus proceed by grinding the tube 12 in the areas 16 and 20.
  • the diameter of the tube 12 in the areas 16 and 20 is reduced by an amount which is slightly greater than twice the thickness of a sleeve which is subsequently disposed about the distal end of the tube.
  • FIG. 1 A close inspection of the catheter construction disclosed in FIG. 1 will reveal that the diameter of the extruded tube 12 has been reduced in the areas 16 and 20 but not in the area or region 18.
  • the'two reduced areas 16 and 20 define an annular shoulder in the region or area 18.
  • it is preferred to reduce the outer diameter of the tube 12 over the entire distal end of the tube it is preferred to reduce the diameter in two separate areas so as to provide the aforementioned annular shoulder which is included to increase the strength and rigidity of the distal end of the tube 12.
  • a first radial aperture 25 is provided in the wall of the tube 12 and communicates with the inflation lumen 15.
  • an adhesive is deposited around the periphery of the tube in the regions wherein the diameter of the tube 12 has been reduced.
  • the inflation lumen at the distal end of the tube 12 is filled or plugged with a material 32.
  • the purpose of filling or plugging the distal end of the inflation lumen l5 will be described hereinafter.
  • the plugging of the distal end of the inflation lumen 15 may be advantageously achieved by filling the distal end of the inflation lumen 15 with an uncured, catalyzed silicone rubber ofthe type preferentially employed as the bonding agent.
  • a closed end sleeve 21 is disposed about the distal end of the tube. Since the closed end sleeve 21 is the part of the catheter which initially contacts the patient and thus acts somewhat as a guide, its construction, mechanical properties and method of fabrication are critical. For example, the sleeve 21 should be fabricated in a manner such that no seams or joints are created. Additionally, all of the dimensions associated with the sleeve must be maintained within a close tolerance. For example, the over-all length of the sleeve should be such that the rear or proximal edge of the sleeve terminates close to the proximal end of the region 16.
  • a superior method for manufacturing such a closed end sleeve is to employ a vertical, fiashless molding technique. Referring to FIG. 6, a two-piece vertical mold may be employed. In operation, a quantity of uncured silicone rubber is deposited in the bottom of the cavity of the female mold 50. Subsequently, the male mold 51' is positioned within the female mold and the molds 50, 51 are heated.
  • a discharge conduit 52 is provided at the bottom of the cavity in the female mold 50 so that air and excessive material within the cavity may be displaced.
  • the male mold 51 is provided with a plurality of guide pins 55 which serve to accurately position the downwardly depending section of the male mold with respect to the cavity in the female mold 50.
  • hydraulic or pneumatic cylinders are generally employed to press together the male and female molds 50, 51 and to maintain them in their closed position while the combination is heated. As a result of these steps, a flashless, closed end sleeve is formed about the downwardly depending section of the male mold 51.
  • the sleeve tends to shrink around the depending section of the male mold 51, thus facilitating removal of the male mold 51.
  • the closed end sleeve is rolled off of the extending section of the mold 51.
  • the modulus of elasticity of the sleeve be less than the modulus of elasticity of the tube.
  • a superior urinary catheter results when two conditions are satisfled, viz: (1) when the catheter tube or shaft extends almost to the distal end of the catheter; and (2) the distal end of the catheter is covered by a closed end sleeve having a modulus of elasticity which is less than the modulus of elasticity of the shaft. The following reasons appear to explain why this new combination is superior.
  • the modulus of elasticity of the sleeve is low, one insures that (l) the tip of the sleeve will be soft (which promotes patient comfort) and (2) the pressure required to inflate the balloon is minimized.
  • the closed end sleeve 21 When the closed end sleeve is unrolled from the depending section of the male mold shown in FIG. 6, it may then be combined with the tube 12 which has been subjected to the manufacturing step set forth above, i.e. the tube diameter has been reduced at the distal end, a first radial aperture 25 has been provided, the distal end of the inflation lumen has been sealed or plugged and two bands of bonding agents or adhesives have been deposited around the tube.
  • the closed end sleeve 21 may be unrolled onto the tube 12.
  • the combination is, according to the preferred embodiment of this invention, inserted within a mold of the type shown in. FIG. 7. Referring to FIG.
  • a mold 70 having a cavity which substantially corresponds in cross section to the distal end of the catheter.
  • the mold 70 is seperable at the transverse parting line 99.
  • To insert the catheter the top part of the mold is removed, the catheter is inserted and the top of the mold is replaced.
  • the two halves of the mold may be held together, if necessary, by any convenient means.
  • a pressurizing source 71 e.g., a hypodermic needle or an air supply
  • a pressurizing source 71 e.g., a hypodermic needle or an air supply
  • the pressure within the drainage lumen 29 is increased. Since the mold 70 snugly surrounds the distal end of the catheter 29, it will be seen that by pressurizing the drainage lumen 14, the tube 12 and the closed end sleeve 21 are radially compressed. If a room temperature vulcanizing agent or another adhesive is used which does not require heat, such radial compression is maintained while a peripheral bond is formed between the tube 12 and the closed end sleeve 21.
  • the mold 70 may advantageously be provided with a heating element 72 which is externally connected to an electric current source.
  • a heating element 72 which is externally connected to an electric current source.
  • other means may be used to heat the mold 70, e.g., induction heating or immersion in a heated bath.
  • the important process step reflected by FIG. 7 resides in radially compressing the tube 12 and the closed end sleeve 21 so that a strong bond is formed while, simultaneously, a smooth and continuous exterior is insured.
  • the closed end sleeve 21 tenninates at a point which is slightly distant from the end of the reduced diameter region 16.
  • FIG. 1 it may be noted that the closed end sleeve 21 tenninates at a point which is slightly distant from the end of the reduced diameter region 16.
  • the annulus 30 is filled with an adhesive or a bonding agent in order to thus provide a smooth exterior contour and also a smooth transition from the balloon to the shaft.
  • Such a smooth contour is substantially insured and promoted by the process step of radially compressing the tube 12 in the closed end sleeve 21 as shown in FIG. 7.
  • FIG. 4 A significant structural advantage intrinsically occurs when the novel catheter construction of FIG. l-is subjected to the radial compression step illustrated in FIG. 7. More particularly, it will be recalled that the tube 12 as shown in FIG. 1 was ground in the region 16 and 20 so as to produce an annular shoulder 18. Referring to FIG. 4, the intrinsic benefit of providing the annular shoulder 18 arises from the fact that the shoulder will function as a barrier to prevent the longitudinal flow of adhesive or bonding agent. Thus, referring to FIG. 4, it may be noted that a quantity of adhesive or bonding agent has accumulated at the point 31. The accumulation of the adesive at the point 31 occurred during the step of radially compressing the sleeve 21 and the tube 12.
  • FIG. 4 clearly illustrates that the annulus formed by the terminal portion 21A of the closed sleeve 21 and the rearward edge of the reduced diameter area 16 is automatically filled and contoured by virtue of the process of radially compressing the closed end sleeve 21 and the tube 12.
  • a second radial aperture 24 is provided in the distal end of the catheter 29 as shown in FIG. 1.
  • the aperture 24 is preferably provided completely through the catheter 29 as most clearly shown in FIG. 2.
  • the second aperture 24 communicates with the drainage lumen 14 and thus provides the required drainage path.
  • the size of the aperture 24 is such that the edge of the aperture 24 is tangent to the plugs 32.
  • Such a possibih ity is particularly evident when one considers the normal cross-section of the catheter tube 12 as shown in FIG. 3. Indeed, considering the cross section of the tube as shown in FIG. 3, it will be appreciated that if a drainage aperture of a size shown in FIG. 2 is eniployed and is randomly located, the probability is that the drainage aperture will intercept the inflation lumen 15. Thus, the plugging or sealing of the drainage lumen 15, as previously described, greatly facilitates the manufacture of a catheter of the type shown in FIG. 1.
  • the completed catheter may be post cured, i.e. it has been found that a superior construction is obtained if the extruded shaft and the closed end sleeve are, initially, only partially cured. Thus, if a partially cured tube and sleeve are used, the final construction must then be cured (post curing). The length of the post cure is sufficient to permanently set the material and drive off any residual catalyst.
  • the closed end sleeve 21 includes a substantially solid tip 23 having a rounded exterior and an interior which includes the shoulder 27.
  • tip 23 may be provided with a centrally disposed cavity 26 to receive a stylet. If the tip 23 is provided with a stylet receiving cavity as shown in FIG. 1, the shoulder 27 will be annular, as shown.
  • the word shoulder as used herein, means a substantially flat, transverse portion of the tip which abuts the distal, transverse end of the shaft.
  • the tip portion 23 of the closed end sleeve 21 is substantially solid, and because of the presence of the annular shoulder 27, a catheter construction results which avoids many of the problems associated with prior art catheter constructions notwithstanding the fact that there is a similarity between the materials used in the catheter construction of FIG. I and the materials employed in prior art catheters.
  • the cavity 26 is of a diameter which is less than the maximum diameter of the drainage lumen.
  • the annular shoulder 27 abuts the transverse end of the tube I2.
  • the tip 23 is significantly more rigid than the tips of prior art catheters wherein drainage lumens were formed in the tip.
  • this particular construction avoids the problem which prior art catheters encountered, i.e. the problem of the tip bending or deflecting during insertion.
  • the closed end sleeve is peripherally bonded to the tube, a butt joint connection is not relied upon and a stronger and more dependable structure results.
  • the tip 23 is at least partially bonded to the tube 12 when a right angular type annular shoulder of the type shown in FIG. 1 is employed.
  • At least a partial butt joint connection between the shaft and the tip is desirable so that if a stylet is used to insert the catheter, the force exerted by the stylet will not be exclusively carried by the sleeve but will be carried by both the sleeve and the butt joint.
  • FIG. 1 Although the catheter construction shown in FIG. 1 has been found to be satisfactory for most applications, it may be desirable under certain circumstances to provide a catheter with a greater bonding area and somewhat greater tip to shaft rigidity. These objectives can be achieved by using the embodiment shown in FIGS. 5 and 8 wherein two modifications are simultaneously FIGS. 5 and 8 are embodied in a single catheter, it will be understood that either may be used alone.
  • the first modification resides in providing'a protu berance 37 on the interior of the tip 23. At the center of the protuberance 37 there may be located a cavity 26 for receiving a stylet. If the cavity 26 is provided, the protuberance 37 will be annular as shown in FIGS. 5 and 8. The protuberance 37 is arranged on the tip and sized so as to be engagingly received within the drainage lumen 14 of the extruded tube 12.
  • the embodiment of our invention which includes a protuberance as shown in FIGS. 5 and 8 is particularly advantageous because an increased bonding area between the tip and the shaft is thus provided which consequently provides a greater tip to shaft rigidity.
  • adhesive 61 is provided between the interior of the shaft walls and the longitudinal sides of the protuberance 37. Additionally, it has been found that providing a protuberance which is received in the drainage lumen 14 facilitates the correct positioning of the closed end sleeve 21 on the tube 12 prior to unrolling the sleeve.
  • FIGS. 5 and 8 Another advantage of the tip construction shown in FIGS. 5 and 8 is the fact that the protuberance 37 and a portion of the tip 23 may be provided separately from the sleeve 21.
  • the phantom line 28 in FIG. 8 indicates that the sleeve 21 may be of essentially constant thickness and disposed over the tip 23.
  • the substantially solid portion of the tip 23 does not have to be integral with the sleeve 21.
  • such a non-integral construction may be desirable.
  • the second modification shown in FIGS. 5 and 8 is the chamfer or bevel 45 at the distal end of the shaft 12.
  • the benefit of this modification relates to the directional orientation of the stresses to which the tip-shaft combination are subjected.
  • the peripheral bevel 45 by providing the peripheral bevel 45, the butt joint bonding area between the tip and the shaft is reduced and replaced by the bevel bonding surface 45.
  • the unity and strength of the tip-shaft combination is improved.
  • retention catheters are generally supplied with a funnel at their proximal end.
  • Birtwell discloses a dual funnel which may be bonded to the proximal end of an extruded catheter shaft. Since the need for and use of such a dual funnel is known to those skilled in the art, a discussion thereof is not included herein, it being understood that as used herein, the phrase retention catheter includes a funnel or funnels of appropriate design at the proximal end.
  • a retention catheter which comprises:
  • an extruded tube having a drainage lumen extending longitudinally for the entire length thereof, an inflation lumen extending longitudinally for the entire length thereof, a first radial aperture in the wall of said tube adjacent the distal end thereof communicating with said drainage lumen and a second radial aperture in the wall of said tube, adjacent the distal end thereof but proximally located with respect to said first aperture and communicating with said inflation lumen;
  • a closed end sleeve having a modulus of elasticity less than the modulus of elasticity of said tube, disposed around the distal end of said tube and extending proximally along said tube to a point past said second aperture and having an aperture aligned with said first aperture, the tip of said sleeve being substantially solid and having a rounded exterior and an interior which includes a shoulder which substantially abuts the transverse distal end of said tube, said closed end sleeve peripherally and at least, in part, abuttingly bonded to said tube, the area of peripheral bonding between said tube and said shaft defining two bands with an unbonded area therebetween, said unbonded area including said second aperture.
  • the catheter of claim 1 which further includes a protuberance, integral with said tip and extending into and engagingly received by said inflation lumen.
  • a retention catheter which comprises:
  • an extruded tube having a drainage lumen extending longitudinally for the entire length thereof, an inflation lumen extending longitudinally for the entire length thereof, a first radial aperture in the wall of said tube adjacent the distal end thereof communicating with said drainage lumen and a second radial aperture in the wall of said tube, adjacent the distal end thereof but proximally located with respect to said first aperture and communicating with said inflation lumen;
  • a closed end sleeve having a modulus of elasticity less than the modulus of elasticity of said tube, disposed around said tip and the distal end of said tube and extending proximally along said tube to a point past said second aperture and having an aperture aligned with said first aperture, said closed end sleeve peripherally bonded to said tube and said tip, the area of peripheral bonding between said tube and said shaft defining two bands with an unbonded area therebetween, said unbonded area including said second aperture.
  • an extruded tube having a drainage lumen extending longitudinally for the entire length thereof and an inflation lumen extending longitudinally for the entire length thereof;

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
US00347996A 1973-04-05 1973-04-05 Retention catheter Expired - Lifetime US3812860A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US00347996A US3812860A (en) 1973-04-05 1973-04-05 Retention catheter
CA194,311A CA1034461A (fr) 1973-04-05 1974-03-07 Catheter
GB1309374A GB1467976A (en) 1973-04-05 1974-03-25 Catheter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00347996A US3812860A (en) 1973-04-05 1973-04-05 Retention catheter

Publications (1)

Publication Number Publication Date
US3812860A true US3812860A (en) 1974-05-28

Family

ID=23366221

Family Applications (1)

Application Number Title Priority Date Filing Date
US00347996A Expired - Lifetime US3812860A (en) 1973-04-05 1973-04-05 Retention catheter

Country Status (3)

Country Link
US (1) US3812860A (fr)
CA (1) CA1034461A (fr)
GB (1) GB1467976A (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055187A (en) * 1976-08-05 1977-10-25 The Kendall Company Catheter with improved balloon assembly
FR2399852A1 (fr) * 1977-08-10 1979-03-09 Kendall & Co Manchette gonflable pour catheter et catheter en comportant application
FR2401012A1 (fr) * 1977-08-25 1979-03-23 Matburn Holdings Ltd Catheters
US4188954A (en) * 1976-08-05 1980-02-19 The Kendall Company Catheter with improved balloon assembly
US4210478A (en) * 1973-05-08 1980-07-01 International Paper Company Method of making a catheter
US4361152A (en) * 1975-05-27 1982-11-30 The Kendall Company Catheter
US4419095A (en) * 1980-05-14 1983-12-06 Shiley, Inc. Cannula with radiopaque tip
US4445891A (en) * 1980-05-05 1984-05-01 The Kendall Company Catheter
US4445890A (en) * 1980-05-05 1984-05-01 The Kendall Company Catheter
US4447228A (en) * 1980-05-05 1984-05-08 The Kendall Company Catheter
US4588399A (en) * 1980-05-14 1986-05-13 Shiley Incorporated Cannula with radiopaque tip
EP0871514A1 (fr) * 1994-08-05 1998-10-21 Medtronic, Inc. Liaison proximale par procede thermique de ballonnet de catheter sur une tige etendue
US5891113A (en) * 1996-01-11 1999-04-06 C. R. Bard, Inc. Corporeal access tube assembly
US20030097099A1 (en) * 2001-11-16 2003-05-22 Radius International Limited Partnership. Catheter
US20040158229A1 (en) * 2002-01-24 2004-08-12 Quinn David G. Catheter assembly and method of catheter insertion
US20050182352A1 (en) * 2004-02-12 2005-08-18 Dimatteo Kristian Dialysis catheter tip
US20050182354A1 (en) * 2003-11-06 2005-08-18 Radius International Limited Partnership Catheter and method of manufacture
US20060100572A1 (en) * 2004-02-12 2006-05-11 Dimatteo Kristian Dialysis catheter tip and method of manufacture
US20060184097A1 (en) * 2002-11-15 2006-08-17 Quinn David G Catheter
WO2009059609A1 (fr) * 2007-11-06 2009-05-14 Coloplast A/S Cathéter à ballonnet
US20090288665A1 (en) * 2007-01-03 2009-11-26 Smiths Group Plc Cuffed medical tubes
US20120238964A1 (en) * 2003-03-06 2012-09-20 Medtronic, Inc. Sleeve valve catheters
CN112402768A (zh) * 2020-10-30 2021-02-26 苏州伟康医疗器械有限公司 管体端部的导向头结构及粘结工艺、导向头粘结模具
EP3848083A1 (fr) * 2019-09-27 2021-07-14 Cook Medical Technologies LLC Procédé de fabrication d'un ballonnet médical en silicone

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6482171B1 (en) 1991-07-16 2002-11-19 Heartport, Inc. Multi-lumen catheter
US5769812A (en) 1991-07-16 1998-06-23 Heartport, Inc. System for cardiac procedures
US5584803A (en) 1991-07-16 1996-12-17 Heartport, Inc. System for cardiac procedures
US5558644A (en) 1991-07-16 1996-09-24 Heartport, Inc. Retrograde delivery catheter and method for inducing cardioplegic arrest
US6224619B1 (en) 1991-12-17 2001-05-01 Heartport, Inc. Blood vessel occlusion trocar having size and shape varying insertion body
US5385548A (en) * 1993-04-22 1995-01-31 Dlp, Inc. Balloon catheter for retrograde perfusion
US5478309A (en) 1994-05-27 1995-12-26 William P. Sweezer, Jr. Catheter system and method for providing cardiopulmonary bypass pump support during heart surgery
US5755687A (en) 1997-04-01 1998-05-26 Heartport, Inc. Methods and devices for occluding a patient's ascending aorta
US6159178A (en) 1998-01-23 2000-12-12 Heartport, Inc. Methods and devices for occluding the ascending aorta and maintaining circulation of oxygenated blood in the patient when the patient's heart is arrested
SI3040097T1 (sl) 2014-12-29 2020-11-30 Dentsply Ih Ab Urinarni kateter z mehko konico

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452756A (en) * 1966-10-10 1969-07-01 American Hospital Supply Corp Medical catheter with plastic balloon requiring low inflation force and method of making same
US3495594A (en) * 1966-11-22 1970-02-17 Davol Inc Inflating valve for catheters
US3528869A (en) * 1968-02-28 1970-09-15 Davol Inc Manufacture of plastic catheter
US3547126A (en) * 1968-02-15 1970-12-15 Biomedical Eng Associates Inc Catheter
US3746003A (en) * 1970-04-20 1973-07-17 American Hospital Supply Corp Multi-lumen balloon catheter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452756A (en) * 1966-10-10 1969-07-01 American Hospital Supply Corp Medical catheter with plastic balloon requiring low inflation force and method of making same
US3495594A (en) * 1966-11-22 1970-02-17 Davol Inc Inflating valve for catheters
US3547126A (en) * 1968-02-15 1970-12-15 Biomedical Eng Associates Inc Catheter
US3528869A (en) * 1968-02-28 1970-09-15 Davol Inc Manufacture of plastic catheter
US3746003A (en) * 1970-04-20 1973-07-17 American Hospital Supply Corp Multi-lumen balloon catheter

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210478A (en) * 1973-05-08 1980-07-01 International Paper Company Method of making a catheter
US4361152A (en) * 1975-05-27 1982-11-30 The Kendall Company Catheter
US4055187A (en) * 1976-08-05 1977-10-25 The Kendall Company Catheter with improved balloon assembly
DE2734701A1 (de) * 1976-08-05 1978-02-09 Kendall & Co Katheter
US4188954A (en) * 1976-08-05 1980-02-19 The Kendall Company Catheter with improved balloon assembly
FR2399852A1 (fr) * 1977-08-10 1979-03-09 Kendall & Co Manchette gonflable pour catheter et catheter en comportant application
FR2401012A1 (fr) * 1977-08-25 1979-03-23 Matburn Holdings Ltd Catheters
US4447228A (en) * 1980-05-05 1984-05-08 The Kendall Company Catheter
US4445891A (en) * 1980-05-05 1984-05-01 The Kendall Company Catheter
US4445890A (en) * 1980-05-05 1984-05-01 The Kendall Company Catheter
US4419095A (en) * 1980-05-14 1983-12-06 Shiley, Inc. Cannula with radiopaque tip
US4588399A (en) * 1980-05-14 1986-05-13 Shiley Incorporated Cannula with radiopaque tip
EP0871514A1 (fr) * 1994-08-05 1998-10-21 Medtronic, Inc. Liaison proximale par procede thermique de ballonnet de catheter sur une tige etendue
US5891113A (en) * 1996-01-11 1999-04-06 C. R. Bard, Inc. Corporeal access tube assembly
US20030097099A1 (en) * 2001-11-16 2003-05-22 Radius International Limited Partnership. Catheter
US7048722B2 (en) 2001-11-16 2006-05-23 Radius International Limited Partnership Catheter
US20040158229A1 (en) * 2002-01-24 2004-08-12 Quinn David G. Catheter assembly and method of catheter insertion
US20060184097A1 (en) * 2002-11-15 2006-08-17 Quinn David G Catheter
US7419479B2 (en) 2002-11-15 2008-09-02 Radius International Limited Partnership Catheter
US9610423B2 (en) 2003-03-06 2017-04-04 Medtronic, Inc. Sleeve valve catheters
US20120238964A1 (en) * 2003-03-06 2012-09-20 Medtronic, Inc. Sleeve valve catheters
US7988658B2 (en) 2003-11-06 2011-08-02 Radius International Limited Partnership Catheter and method of manufacture
US20050182354A1 (en) * 2003-11-06 2005-08-18 Radius International Limited Partnership Catheter and method of manufacture
US20050182352A1 (en) * 2004-02-12 2005-08-18 Dimatteo Kristian Dialysis catheter tip
US20060100572A1 (en) * 2004-02-12 2006-05-11 Dimatteo Kristian Dialysis catheter tip and method of manufacture
JP2010514529A (ja) * 2007-01-03 2010-05-06 スミスズ グループ ピーエルシー カフ付き医療チューブ
US20090288665A1 (en) * 2007-01-03 2009-11-26 Smiths Group Plc Cuffed medical tubes
US8220462B2 (en) 2007-01-03 2012-07-17 Smiths Group Plc Cuffed medical tubes
US8281789B2 (en) 2007-01-03 2012-10-09 Smith Group Plc Cuffed medical tubes
US9010333B2 (en) 2007-01-03 2015-04-21 Smiths Group Plc Cuffed medical tubes
EP2097128B1 (fr) * 2007-01-03 2018-01-31 Smiths Group plc Canules à ballonnet
US20110015571A1 (en) * 2007-11-06 2011-01-20 Coloplast A/S Balloon Catheter
WO2009059609A1 (fr) * 2007-11-06 2009-05-14 Coloplast A/S Cathéter à ballonnet
EP3848083A1 (fr) * 2019-09-27 2021-07-14 Cook Medical Technologies LLC Procédé de fabrication d'un ballonnet médical en silicone
CN112402768A (zh) * 2020-10-30 2021-02-26 苏州伟康医疗器械有限公司 管体端部的导向头结构及粘结工艺、导向头粘结模具

Also Published As

Publication number Publication date
CA1034461A (fr) 1978-07-11
GB1467976A (en) 1977-03-23

Similar Documents

Publication Publication Date Title
US3812860A (en) Retention catheter
US3865666A (en) Method of making a catheter
US4210478A (en) Method of making a catheter
US3959429A (en) Method of making a retention catheter and molding a tip thereon
US4177815A (en) Catheter balloon structure
US4798597A (en) Flexible composite intubation tube
US4222384A (en) Catheter
US4003382A (en) Retention catheter and method of manufacture
US3547126A (en) Catheter
US3985601A (en) Method for producing a balloon type catheter having a smooth continuous outer surface
US4154243A (en) Catheter with improved balloon assembly
US5522801A (en) Integrate-forming silicone balloon catheter
US5466230A (en) Catheter sheath introducer with strain relief
US4820270A (en) Balloon catheter and process for the manufacture thereof
US4157094A (en) Catheter with improved balloon and tip assembly
US4284459A (en) Method for making a molded catheter
US3890976A (en) Catheter tip assembly
US3438375A (en) Non-traumatic retention catheter
US3860007A (en) Catheter with safety deflation means
US4207900A (en) Insert molded catheter and method
US4225371A (en) Method of making a catheter
US4787892A (en) Nephrostomy catheter with formed tip
US4188954A (en) Catheter with improved balloon assembly
US4143651A (en) Catheter
US4178937A (en) Catheter with integral balloon and method