US3827434A - Catheter insertion device - Google Patents

Catheter insertion device Download PDF

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Publication number
US3827434A
US3827434A US26488872A US3827434A US 3827434 A US3827434 A US 3827434A US 26488872 A US26488872 A US 26488872A US 3827434 A US3827434 A US 3827434A
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Prior art keywords
catheter
needle
hub
proximal end
locking surfaces
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Expired - Lifetime
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Thomas Cline Thompson
John Anthony Gula
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VICRA STERILE Inc
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VICRA STERILE Inc
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Priority to US26488872 priority Critical patent/US3827434A/en
Priority claimed from AU57015/73A external-priority patent/AU480671B2/en
Priority claimed from US49398774 external-priority patent/US3921631A/en
Application granted granted Critical
Publication of US3827434A publication Critical patent/US3827434A/en
Priority claimed from NO743697A external-priority patent/NO136073C/en
Priority claimed from CA246,678A external-priority patent/CA1033245A/en
Priority claimed from CA267,098A external-priority patent/CA1025311A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/065Guide needles

Abstract

A catheter insertion device having a needle assembly comprising a hollow slotted needle with a needle hub affixed to its proximal end and a catheter assembly comprising a flexible catheter having a sealing segment with an enlarged outside diameter to prevent bleedback and a hollow catheter hub secured to its proximal end, the two assemblies being releasably locked together to prevent relative longitudinal movement of the catheter in the needle, the locking being releasable without relative longitudinal movement of the catheter and needle. The catheter is provided with a wire stylet having an enlarged rounded distal tip.

Description

United States Patent 91 Thompson et a1.

[ Aug. 6, 1974 1 1 CATHETER INSERTION DEVICE [75] Inventors: Thomas C. Thompson, Dallas; John A. Gula, Farmers Branch, both of Tex.

[52] US. Cl l28/2l4.4, 128/221, l28/DIG. 16 [51] Int. Cl A61m 5/00 [58] Field of Search 128/214 R, 214.4, 221, 128/348, 350 R, DIG. l6

[5 6] References Cited UNITED STATES PATENTS 3,099,988 8/1963 Ginsburg 128/221 3,323,523 6/1967 Scislowicz et a1... 128/2144 3,370,587 2/1968 Vizcarra 128/2144 3,459,183 8/1969 Ring et a1. 128/2144 3,633,579 l/l972 Alley et a1. 128/2144 3,677,244 7/1972 Hassinger 128/2144 FOREIGN PATENTS OR APPLICATIONS 904,237 8/1962 Great Britain 128/2144 628,292 10/1961 Canada ..12s/214.4

OTHER PUBLICATIONS C. R. Bard Catalogue 1940 p. 23 (Item No. 403). Gaertner Surg. Gyne. & Obstet. V01. 119, No. 3, Sept. 1964, pp. 599-600.

Primary ExaminerDalton L. Truluck Attorney, Agent, or Firm-Richards, l-larris & Medlock [57] ABSTRACT A catheter insertion device having a needle assembly comprising a hollow slotted needle with a needle hub affixed to its proximal end and a catheter assembly comprising a flexible catheter having a sealing segment with an enlarged outside diameter to prevent bleedback and a hollow catheter hub secured to its proximal end, the two assemblies being releasably locked together to prevent relative longitudinal movement of the catheter in the needle, the locking being releasable without relative longitudinal movement of the catheter and needle. The catheter is provided with a wire stylet having an enlarged rounded distal tip.

4 Claims, 11 Drawing Figures 1 CATHETER INSERTION DEVICE This invention relates to catheter insertion devices, and more particularly to such devices for introduction of a catheter through a slotted needle.

A number of self-contained catheter insertion devices have previously been used in the art for intravenous or other infusion of fluid into a patient. One type of such device is sometimes called through the needle. A through the needle unit involves the use of a hollow needle to accomplish puncture while containing a flexible catheter. If the needle is appropriately slotted, the needle can be subsequently separated from the catheter and removed from the area of the body.

This invention provides improved structure for catheter insertion employing the principle of the hollow slotted needle. The device of this invention provides a catheter-needle combination which is positively locked to prevent any relative longitudinal movement between the two prior to or during puncture or during initial separation of the two. Locking of the device may be accomplished upon initial assembly of the device so that the proper relationship between the parts is maintained during shipment and storage.

One aspect of the invention is the provision for, and positive maintenance of, the proper relative positioning of the catheter and needle through the time during utilization when the needle is separated from the catheter. It is important that the end of the catheter be maintained at least as far along the needle as approximately the end of the slot in the needle, to prevent channeling of blood flow out through the needle slot. At the same time, the catheter should not extend so far out as to interfere with the piercing function of the needle.

In a further aspect of the invention, structure is provided so that the separation of needle and catheter may be made without causing longitudinal movement of the catheter in the needle, as might cause blood to spurt through the needle slot. The separation step is a readily performed manual separation of the two separate assemblies.

One of the advantages of the invention is the ease of fabrication of the components of the device, and the ease and sureness with which the device may be manipulated to accomplish a proper insertion.

The device will properly perform insertion, while positively locking the catheter and needle together, no matter what portion of the supporting structure is grasped by the user. The concomitant functions of locking and separation are provided by locking catheter and needle assemblies together in side-by-side relation without the necessity of complicated subassemblies or moving parts which make the physical manipulationsrequired more difficult, and which increase the level of understanding and skill necessary to proper utilization.

While the present invention is suitable for a variety of catheter applications, the invention is particularly useful in connection with intravenous catheters. The invention will be described in terms of a catheter device for intravenous infusion of fluids, although it is not intended to limit the invention to such uses alone.

Intravenous injections are most desirably accomplished by catheters possessing a number of specific attributes. The device should be short, to minimize the length of catheter inside the blood vessel. The device should be simple in operation, to minimize the physical manipulations required in its use particularly during the delicate stage of catheter insertion, and also to make its use more readily understood and properly carried out by medical personnel. Implantation and maintenance of the catheter should be affected with as little bleeding as possible. The material of the catheter itself should be body compatible to the greatest extent possible, including being inert to organic tissues and fluids, nonclotting as to the blood, and highly flexible.

One material which has been found to possess the desirable characteristics demanded of catheter tubing is a silicated rubber, such as one being sold under the trade name Silastic. While the material does provide desirable characteristics of body compatibility, tubing formed therefrom is somewhat difficult to handle and insert because of its extreme delicateness, pliability and elasticity. One objective of this invention is to provide a device which is well suited to overcoming the problems associated with the use of Silastic catheters so that the advantages of such catheters may be fully exploited and enjoyed.

Another object of this invention is to provide a catheter implanted employing a through the needle device which will not be subject to bleeding around the catheter.

There is provided by this invention a through the needle catheter with a provision for a positive puncture seal after insertion of the catheter, utilizing an enlarged segment on the proximal end of the catheter.

The invention also contemplates means for forwarding a catheter after insertion, such as a stiffening wire stylet in the catheter which stylet has an enlarged rounded distal tip to avoid puncture of the catheter, particularly in the case of the delicate Silastic catheters.

In accordance with the invention, there is provided a catheter insertion device having a needle assembly with a hollow slotted needle and a needle hub secured to the proximal end of the needle. A catheter assembly includes an elongate catheter positioned in the needle and a catheter hub fixed to the proximal end of the catheter adjacent the needle hub. Releasable locking means are secured to the assemblies to prevent relative movement of the catheter and needle in at least one "longitudinal direction, which means is releasable without relative longitudinal movement of the needle and catheter. The catheter has an effective sealing segment proximal of the needle having an outer diameter at least as large or slightly larger than the needle diameter. A wire stylet in the catheter has an enlarged rounded distal tip.

For a more complete understanding of the present invention and for further objects and advantages thereof, reference may now be had to the following de scription taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a plan view of a catheter insertion device made in accordance with the invention;

FIG. 2 is a perspective view of the device shown in FIG. 1, with catheter assembly and needle assembly shown separated;

FIG. 3 is a side view of the device as presented in FIG. 2;

FIG. 4 is a plan view of the plug and stylet portion of the catheter assembly of FIGS. 1-3;

FIG. 5 is a plan view of a modified form of catheter assembly for use in devices such as shown in FIGS. 1-4;

FIG. 5A is a plan view of a portion of a further modi fied catheter assembly for use in devices such as shown in FIGS. 1-4;

FIG. 6 is a plan view of a modified needle assembly for use with the catheter assembly shown in FIGS. 5 and 5A;

FIG. 7 is a perspective view of another embodiment of a needle assembly suitable for use in the device of FIGS. 1-3;

FIG. 8 is a partial perspective view of another embodiment of the invention, with the catheter and needle assemblies shown separated;

FIG. 9 is a partial perspective view of yet another embodiment of the present invention; and

FIG. 10 is a partial perspective view of another embodiment of the invention.

Referring now to FIGS. 1-3, views of a catheter insertion device generally indicated by the reference numeral 10 are illustrated. The device 10 comprises a needle assembly 12 and a catheter assembly 14 cooperating therewith. As shown in FIG. 1, a removable needle cover 16 is provided as a shield for the needle prior to use.

The needle assembly 12 has an elongate hollow needle 18 which is pointed at its distal end 20 and may be formed from any suitable material, preferably stainless steel such as, for example, AISI Type 304. Needle 18 is secured at its proximal end to a needle hub 22. Needle hub 22 may be formed from any suitable relatively rigid material, such as a plastic, for example polyethylene or other moldable plastic. Needle hub 22 carries a mounting collar 24 in which the needle 18 is received by any convenient means such as press fitting or molding of the collar 24 and hub 22 directly on the needle 18. The wall of needle 18 is provided with a slot extending the length thereof, which registers with a slot provided in collar 24;

Mounting collar 24 is joined to the base 26 of needle hub 22 by neck portion 28, which terminates in rearwardly axially facing shoulders 30 rising from base .26. A pair of restraining lugs 32 are provided on base 26 spaced from the shoulders 30.

Catheter assembly 14 is provided with an elongate flexible catheter tube 34 which passes, at its proximal end, into a hollow catheter hub 36 at the distal end 37 of the hub 36. The catheter may be any of the accepted types of tubing used in catheters although a silicated rubber such as Silastic" is preferred. Hub 36 may be formed from any relatively rigid material, including a moldable plastic such as polyethylene, for example. Hub 36 is provided with conventional means for receiving an infusion line or the like, such as a conventional luer fitting 38, in which a luer plug 40 is removably secured. Hub 36 provides a channel for fluid flow between the catheter tube 34 and the fitting 38. Tie-down ears 42 extend outwardly from the catheter hub 36.

The distal section 44 of catheter hub 36 is of reduced external diameter, so that a forwardly axially facing shoulder 46 is formed on catheter hub 36. Catheter hub 36 has a locking flange 48 formed thereon, spaced rearwardly from shoulder 46.

The needle assembly 12 and catheter assembly 14 are releasably locked together in the catheter insertion device 10 of this invention. The catheter tube 34 lies within the hollow needle 18, and extends rearwardly through the mounting collar 24 on needle hub 22. The distal end of the catheter tube is aligned with the distal end of the slot in the needle 18, which point is indicated in FIG. 3 by the numeral 49. The two assemblies 12 and 14 are releasably locked together by the mating of the axially facing surfaces provided on needle hub 22 and catheter hub 36. Longitudinal movement of the two assemblies is prevented by the engagement of locking surfaces on the respective assemblies. Relative forward movement of the catheter assembly 14 with respect to the needle assembly 12 is prevented by engagement of shoulders30 on needle hub 22 with the shoulder 46 on catheter hub 36. Relative rearward motion of the catheter assembly with respect to the needle assembly is prevented by the engagement of the lugs 32 of needle hub 22 with the locking flange 48 of catheter hub 36. The engagement of the surfaces is sufficient to releasably lock the assemblies 12 and 14 together, but the distances between the surfaces is dimensioned so that the assemblies may readily be snapped apart by digital manipulation of the assemblies 12 and 14 to apply lateral separating pressure.

As shown in FIG. 4, the luer plug 40 for each of the catheter assemblies herein disclosed can be provided with a thin wire stylet 50 or other stiffening member extending through catheter hub 36 and through the length of the catheter tube 34, to facilitate manipulation of the catheter tubing 34 after insertion. The stylet 50 is provided with a rounded distal tip 51 so that the danger of the stylet tearing or piercing the catheter or vein is reduced. The spherical distal tip 51 may be formed by heating the end of the stylet 50 using an arc welder.

The catheter insertion devices illustrated in FIGS. 1-6 may be provided in sterilized form for shipment and storage prior to use. When the device is ready for use, the needle cover 16 is removed, and the distal end 20 of the needle 18 is inserted through the end at the location on the patients body desired. After insertion of the needle 18 and catheter tube 34 has been achieved, the needle hub 22 may be laterally separated from the catheter hub 36 by the application of relative manual pressure thereon, which pressure need not involve pressure in the longitudinal direction so as to cause the catheter 34 to move in the needle 18. Thereafter the needle 18 may be separated from the catheter tube 34 and withdrawn. Typically, however, the needle 18 will be held in position after separation of the needle hub 22 and catheter hub 36 while the catheter tubing 34 is manipulated further into the body by manual force exerted on the catheter hub 36 or plug 40. In the case of the catheter shown in FIG. 4, the catheter is forwarded until at least a portion of the segment 35 is inserted into the wound to prevent bleedback around the catheter. The stylet 50 within the catheter tube 34 facilitates in the process of forwarding the catheter tubing 34 if that is desired. The stylet is particularly useful in connection with exceedingly delicate flexible tubing 34 which would otherwise be extremely difflcult to forward into the vein after insertion.

Two preferred forms of catheter assembly modified to assist in preventing bleedback around the catheter are illustrated in FIGS. 5 and 5A. In part because of the blood compatibility property of silicated rubber catheters, the bleedback is a particular problem in such catheters. These catheter assemblies are similar to the assembly of FIGS. 1-3, and the same reference numbers as described above are applied to common portions of FIGS. 5 and 5A. The modification of the catheter assemblies of FIGS. 5 and 5A is in the proximal end of the catheter 34. The catheter 34 is provided with a section 35 having an enlarged outside diameter adjacent the catheter hub. The needle assembly of FIG. 6 is slightly modified to accommodate the enlarged section of the catheters of FIGS. 5 and 5A.

The purpose of enlarged section 35 of FIGS. 5 and 5A is to provide an effective sealing segment to prevent bleeding around the outside of the catheter after insertion. In through the needle devices such as the present one, the needle is larger than the outside diameter of the catheter lying inside the needle, and thus creates a larger puncture than the diameter of the catheter lying in the needle. The enlarged section 35 of FIGS. 5 and 5A, which is aligned with its associated structure so as to lie immediately proximal of the needle 18 in the assembled device, so that it has an effective sealing segment, that is, one with a diameter, variable or constant, at least equal to the outside diameter of the needle 18, and preferably a slightly larger diameter. The section 35 thus provides a segment having an effective sealing diameter, that is, a diameter equal to or slightly larger than the needle diameter. The diameter of the segment provided for sealing should exceed the needle diameter only slightly, by no more than about 50 percent. In operation, the section 35 is inserted far enough into the puncture to create positive sealing of the hole created by the needle.

FIG. 5 illustrates an enlarged section 35 which continually gradually increases at the proximal end of catheter 34. While the precise slope of section 35 in FIG. 5 is not critical, it is important that the slope be relatively gradual, for example, no greater than that defined by an angle of about 10. An example of suitable dimensioning would be for a catheter having 0.045 inch 0D. to increase indiameter to 0.100 inch in a segment 35 length of 0.335 inch. Such a catheter could be used with a needle of about 0.063 inch diameter, so that segment 35 would have a diameter equal to the needle diameter about 0.125 inch proximal of its distal end, which would gradually increase to somewhat over 0.03 inch greater in the remaining 0.210 inch proximal segment of section 35. The effective sealing segment is formed by the distal portion of this proximal segment. The proximal end of the catheter adjacent the catheter hub may have a larger diameter than is actually usable for sealing, and such end does not form a part of the effective sealing segment since it would not be inserted into the puncture.

While the catheter configuration illustrated in FIG. 5 is ordinarily effective to prevent bleedback by sealing the skin and vessel punctures, the structure of FIG. 5A is designed with a longer section having an effective sealing diameter to produce the desired sealing effect even in situations where the operator makes entry into the vein at some distance from the skin puncture. In such circumstances, it is desirable to have a longer segment having an effective sealing diameter. In this way, sealing of the puncture of the vessel and the skin can be readily accomplished even with the entry into the vein spaced from the skin puncture.

Catheter section 35 of FIG. SA has a distal transition segment 35a, an elongated central constant-diameter segment 35b and a gently sloping proximal segment 35c. The segments 35b and 35c provide an elongated effective sealing catheter segment. The catheter would be inserted sufficient to seal the needle puncture, ordinarily up to and perhaps including the distal portion of 5 segment 35c.

The constant diameter segment 35b allows for increase of the length of the effective sealing segment of the catheter, without increasing the catheter diameter unduly. An example of suitable dimensioning for section 35 of FIG. 5A for a 0.045 inch catheter and 0.063 inch needle is for segment 35a to be about 0.050 inch long, increasing in diameter from 0.045 to 0.072 inch. Segment 35b may be about 0.250 inch long, and segment 35c about 0.1 inch long, with diameter increasing from 0.072 inch to 0.094 inch.

One suitable structure and method for providing the enlarged segment 35 of both FIGS. 5 and SA on catheter 34 is by means of a separate sleeve forming the enlarged section 35 which is placed over catheter 34 and locked with catheter 34 in the catheter hub 36. Perferably the sleeve and the catheter would both be formed of a slicated rubber. The sleeve would have an inside diameter slightly smaller than that of the outer diameter of catheter 34 so as to be slightly interferingly fit with the catheter. The sleeve may be positioned on the catheter by swelling the rubber sleeve in an organic solvent such as xylene, so that it will slip easily over the catheter tubing. Once in position on the tubing, the solvent may be evaporated, and the catheter and sleeve secured in the catheter hub 36 through the distal end 37 of the hub 36 by any suitable means.

FIG. 7 illustrates a modified form of needle assembly 60 which may be utilized with the device described above in connection with FIGS. 1-4 in place of needle assembly 12. For convenience, the portions of needle assembly 60 which are identical with those of needle assembly 12 have been provided with the same reference numerals. The modified needle assembly is provided with a pair of arms 62 extending laterally outward from the base 26 of needle hub 22. The arms 62 terminate in enlarged upstanding ears 64. Modification represented in the needle assembly 60 is provided to assist in the catheter insertion device, specifically to give better control of the steps wherein the needle assembly is moved relative to the catheter assembly 14. The ears 64 may be grasped while the catheter is being forwarded and also while the needle is being removed.

A large number of other forms of specific embodiments in accordance with this invention are possible. For example, while the above described devices have illustrated locking to a catheter hub per se, such means could be provided on the luer plug or other part of the catheter assembly. Other forms of catheter hubs are possible, including ones in which a longer catheter is used so that the luer fitting is displaced proximally from the catheter hub. It will be appreciated that a variety of specific forms of catheter hubs may be applied to the catheter to perform the functions of the catheter hub illustrated, and the term catheter hub is intended to apply to all such forms.

FIGS. 8-10 illustrate a few of the other possible locking modes which may be employed in accordance with this invention. Referring now to FIG. 8, there is depicted portions of a catheter insertion device which represents a modified embodiment of the present invention. The modification represented by the device of FIG. 8 resides in the catheter hub and needle hub, and the remainder of the device and its operation remains the same as that described above.

In the device of FIG. 8, catheter hub 100 is provided with downwardly extending tab 102. The needle hub 104 is releasably engaged with the catheter 100 by the engagement of tab 102 in a slot 106 provided on needle hub 104.

Yet another embodiment of the concept of this invention is illustrated bythe FIG. 9, which depicts a modified form of catheter hub 120 and needle hub 122, with the parts thereof shown separated. Catheter hub 120 is provided with a mounting slot 124 formed by a' pair of spaced flanges 126 extending outwardly therefrom. The needle hub 122 is provided with a pair of complementary mounting slots 130 which register with the slots 124 of the catheter hub 120. The releasable engagement of the catheter hub 120 with the needle hub 122 which is provided by snap ring 132 secured through slots 124 and 130. In utilization of this device, the snap ring 132 is maintained in position until lateral separation of the catheter hub 120 and needle hub 128 is desired, at which time the snap ring 132 is removed.

' separated, is illustrative of the utilization of frictional locking means. In this device a tape or strap 140 is applied directly to the needle hub 142 and catheter hub 144 to engage the two hubs firmly in a locked relationship through frictional engagement. In use, the tape 140 maintains the hubs interlocked until after puncture when the user removes the tape 140 to free the hubs 142 and 144. Alternatively, a living hinge such as described above could be provided on the needle assembly to frictionally engage the surface of the catheter hub.

Having described the invention in connection with certain specific embodiments thereof, it is to be understood that further modifications may now suggest themselves to those skilled in the art and it is intended to cover such modifications as fall within the scope of the appended claims.

What is claimed is:

1. A catheter insertion device comprising:

a hollow slotted needle;

a needle hub secured to the needle and having a pair of axially spaced, oppositely facing locking surfaces;

a catheter lying in the needle; and

a catheter hub secured to the proximal portion of the catheter having a pair of oppositely facing complimentary locking surfaces axially spaced substantially equally to the spacing of the needle hub locking surfaces and engaging said needle hub locking surfaces to prevent relative longitudinal movement of the catheter and needle, said catheter hub being movable by relative lateral movement from said engagement to a second position, in which said locking surfaces are not engaged.

2. The device of claim 1, in which the needle hub includes a flat base extending proximally of the needle, and said pair of needle hub locking surfaces comprise spaced facing shoulders upstanding from said base.

3. A catheter insertion device comprising:

a hollow slotted needle having a pointed distal end and a proximal end;

a needle hub secured to the proximal end of the needle and having a distally facing shoulder formed thereon spaced from the proximal end of the needle;

a catheter lying in the needle; and

a catheter hub secured to the proximal portion of the catheter having a complimentary proximally facing shoulder formed thereon and spaced from the proximal end of the needle an amount substantially equal to the spacing of the needle hub shoulder from the proximal end of the needle and engaging said needle hub shoulder to prevent relative proximal longitudinal movement of the catheter with respect to the needle, said catheter hub being movable by relative lateral movement from said engagement to a second position, in which said shoulders are not engaged.

4. A catheter insertion device comprising:

a hollow slotted needle having a pointed distalend;

a needle hub secured to the proximal end of the needle and having a base for releasably receiving a catheter hub;

a pair of axially spaced facing shoulders on said base for receiving a catheter hub therebetween;

a catheter lying in the needle; and

a catheter hub extending from the proximal end of the catheter and releasably held between said spaced facing shoulders on the needle hub to prevent longitudinal movement of the catheter with respect to the needle.

QRTTED STATES PATENT orrrcs CERT TFEQATE 0F CGEEQTKQN Patent No. 3 827 434 Dated August 6 1974 inv n Thomas C. Thompson ied that error appears in the above-identified patent It is certif re hereby corrected as shown below:

and that said Letters Patent a Omit John A Gilla Farmers Branch, as an inventors Identification of inventor should read:

"Inventor: Thomas C. Thompson,Dallas, Texas."

(SEAL) Attest:

- C. MARSHALL DANN RUTH C. MASON Commissioner of Parents and Trademarks Attesting Officer FORM Po-wso (10-63) USCOMM-DC acme m9 9 0.5 GOVIRNHSNI 'RIHTHG OFF CE: 3959 0-366-33.

Claims (4)

1. A catheter insertion device comprising: a hollow slotted needle; a needle hub secured to the needle and having a pair of axially spaced, oppositely facing locking surfaces; a catheter lying in the needle; and a catheter hub secured to the proximal portion of the catheter having a pair of oppositely facing complimentary locking surfaces axially spaced substantially equally to the spacing of the needle hub locking surfaces and engaging said needle hub locking surfaces to prevent relative longitudinal movement of the catheter and needle, said catheter hub being movable by relative lateral movement from said engagement to a second position, in which said locking surfaces are not engaged.
2. The device of claim 1, in which the needle hub includes a flat base extending proximally of the needle, and said pair of needle hub locking surfaces comprise spaced facing shoulders upstanding from said base.
3. A catheter insertion device comprising: a hollow slotted needle having a pointed distal end and a proximal end; a needle hub secured to the proximal end of the needle and having a distally facing shoulder formed thereon spaced from the proximal end of the needle; a catheter lying in the needle; and a catheter hub secured to the proximal portion of the catheter having a complimentary proximally facing shoulder formed thereon and spaced from the proximal end of the needle an amount substantially equal to the spacing of the needle hub shoulder from the proximal end of the needle and engaging said needle hub shoulder to prevent relative proximal longitudinal movement of the catheter with respect to the needle, said catheter hub being movable by relative lateral movement from said engagement to a second position, in which said shoulders are not engaged.
4. A catheter insertion device comprising: a hollow slotted needle having a pointed distal end; a needle hub secured to the proximal end of the needle and having a base for releasably receiving a catheter hub; a pair of axially spaced facing shoulders on said base for receiving a catheter hub therebetween; a catheter lying in the needle; and a catheter hub extending from the proximal end of the catheter and releasably held between said spaced facing shoulders on the needle hub to prevent longitudinal movement of the catheter with respect to the needle.
US26488872 1972-06-21 1972-06-21 Catheter insertion device Expired - Lifetime US3827434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US26488872 US3827434A (en) 1972-06-21 1972-06-21 Catheter insertion device

Applications Claiming Priority (30)

Application Number Priority Date Filing Date Title
US26488872 US3827434A (en) 1972-06-21 1972-06-21 Catheter insertion device
CA173,367A CA1020034A (en) 1972-06-21 1973-06-06 Catheter insertion device
NO243373A NO132921C (en) 1972-06-21 1973-06-08
ZA00746318A ZA7406318B (en) 1972-06-21 1973-06-12 Catheter insertion device
NL7308157A NL7308157A (en) 1972-06-21 1973-06-12
ZA00733987A ZA7303987B (en) 1972-06-21 1973-06-12 Catheter insertion device
GB2834673A GB1437621A (en) 1972-06-21 1973-06-14 Catheter insertion device
GB3822775A GB1437622A (en) 1972-06-21 1973-06-14 Catheter insertion device
AU57015/73A AU480671B2 (en) 1972-06-21 1973-06-18 Catheter insertion device
IL4253473A IL42534A (en) 1972-06-21 1973-06-18 A catheter insertion device
CH282776A CH584550A5 (en) 1972-06-21 1973-06-18
IT5088873A IT985710B (en) 1972-06-21 1973-06-18 A device for insertion of catheters
CH884373A CH579922A5 (en) 1972-06-21 1973-06-18
IL4788873A IL47888A (en) 1972-06-21 1973-06-18 A catheter insertion device
DE19732331333 DE2331333A1 (en) 1972-06-21 1973-06-20 infusion set
SE7308726A SE404491B (en) 1972-06-21 1973-06-20 A device for generating information of a catheter
ES416128A ES416128A1 (en) 1972-06-21 1973-06-20 Inserters improvements in beef catheterized.
IE182973A IE38445B1 (en) 1972-06-21 1973-06-21 Catheter insertion device
BE132542A BE801237A (en) 1972-06-21 1973-06-21 A catheterization
IE102873A IE38444B1 (en) 1972-06-21 1973-06-21 Catheter insertion device
JP6927273A JPS572346B2 (en) 1972-06-21 1973-06-21
FR7322669A FR2189080B1 (en) 1972-06-21 1973-06-21
US49398774 US3921631A (en) 1972-06-21 1974-08-01 Catheter insertion device and method of catheter introduction
NO743697A NO136073C (en) 1972-06-21 1974-10-15 Apparatus for innf|ring catheter.
IL4788875A IL47888D0 (en) 1972-06-21 1975-08-07 A catheter insertion device
CA246,678A CA1033245A (en) 1972-06-21 1976-02-27 Catheter insertion device
SE7612851A SE429100B (en) 1972-06-21 1976-11-17 A device for generating information of a catheter
CA267,098A CA1025311A (en) 1972-06-21 1976-12-03 Catheter insertion device
JP55184152A JPS5743262B2 (en) 1972-06-21 1980-12-26
DK17381A DK17381A (en) 1972-06-21 1981-01-15 An apparatus for katerindfoering

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US26488872 Expired - Lifetime US3827434A (en) 1972-06-21 1972-06-21 Catheter insertion device

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US (1) US3827434A (en)
JP (2) JPS572346B2 (en)
BE (1) BE801237A (en)
CA (1) CA1020034A (en)
CH (2) CH579922A5 (en)
DE (1) DE2331333A1 (en)
DK (1) DK17381A (en)
ES (1) ES416128A1 (en)
FR (1) FR2189080B1 (en)
GB (2) GB1437621A (en)
IE (2) IE38445B1 (en)
IL (3) IL47888A (en)
IT (1) IT985710B (en)
NL (1) NL7308157A (en)
NO (1) NO132921C (en)
SE (2) SE404491B (en)
ZA (2) ZA7406318B (en)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921631A (en) * 1972-06-21 1975-11-25 Vicra Sterile Inc Catheter insertion device and method of catheter introduction
US3995628A (en) * 1975-04-25 1976-12-07 Travenol Laboratories, Inc. Catheter insertion device
US4020835A (en) * 1973-08-16 1977-05-03 Boehringer Ingelheim Gmbh Catheter placement assembly
US4037599A (en) * 1976-01-26 1977-07-26 Raulerson James D Continuous flow catheter device
USD245451S (en) * 1975-09-24 1977-08-16 Vital Assists, Inc. Catheter
US4250881A (en) * 1979-08-29 1981-02-17 Quest Medical, Inc. Catheter insertion device
US4362156A (en) * 1979-04-18 1982-12-07 Riverain Corporation Intravenous infusion assembly
US4576589A (en) * 1983-03-28 1986-03-18 Codman & Shurtleff, Inc. Trocar
US4955890A (en) * 1986-01-16 1990-09-11 Vitaphore Corporation Surgical skin incision device, percutaneous infection control kit and methods of use
US4973305A (en) * 1989-12-08 1990-11-27 David Goltzer Method and apparatus for inserting and retaining an epidural catheter
US5098393A (en) * 1988-05-31 1992-03-24 Kurt Amplatz Medical introducer and valve assembly
US5117836A (en) * 1990-10-22 1992-06-02 Millar Instruments, Inc. Method for measuring intracranial fluid characteristics
US5304140A (en) * 1987-08-28 1994-04-19 Terumo Kabushiki Kaisha Catheter for introduction into blood vessel
WO1994025096A1 (en) * 1993-04-26 1994-11-10 Jungnelius Bjoern Erik Method and device for catheterization
WO1995020991A1 (en) * 1994-02-04 1995-08-10 Cma/Microdialysis Holding Ab Dialysis combination and microdialysis probe and insertion means intendent for said combination
US5545136A (en) * 1993-09-14 1996-08-13 Berger; J. Lee Grooved catheter director apparatus
US5718239A (en) * 1996-06-21 1998-02-17 Becton, Dickinson And Company Method of activating a needle assembly having a telescoping shield
US5853391A (en) * 1996-07-01 1998-12-29 Medcare Medical Group, Inc. Slotted regional anesthesia needle
WO2000043056A1 (en) * 1999-01-21 2000-07-27 Kennedy Thomas M Sheath, epidural catheter system, and method for inserting a catheter
US6224586B1 (en) * 1999-09-04 2001-05-01 Endosonics Corporation Positioning device
EP1201263A3 (en) * 2000-10-24 2002-08-21 Vivek Thappa Closed-end infusion catheter and an introducer
US20030093009A1 (en) * 2001-11-13 2003-05-15 Becton, Dickinson And Company Needle safety device
US20040133172A1 (en) * 2002-06-07 2004-07-08 Becton, Dickinson And Company Needle safety device
US6796976B1 (en) * 1998-03-06 2004-09-28 Scimed Life Systems, Inc. Establishing access to the body
US20040243096A1 (en) * 2001-09-14 2004-12-02 Pedro Acha Gandarias Catheter and use method thereof
US20050070878A1 (en) * 2003-09-25 2005-03-31 Daniel Triplett Pre-molded bifurcation insert
US20050245874A1 (en) * 2002-11-20 2005-11-03 Vygon Device for locoregional anesthesia and method for making the cannula of said device
US20060253071A1 (en) * 2003-06-16 2006-11-09 Giuseppe Zattera Diagnostic catheter and its method of application
US20070066964A1 (en) * 2005-07-27 2007-03-22 Atkins Joseph R Catheter and Tunneling Device Therefor
US20070078478A1 (en) * 2005-07-27 2007-04-05 Atkins Joseph R Catheter and tunneling device therefor
US20100036331A1 (en) * 2006-10-23 2010-02-11 Luyi Sen Safety Transfusion Catheter
FR2981575A1 (en) * 2011-10-19 2013-04-26 Braun Medical Sas Catheter with removable cannula for the punching of body cavities and a cannula of this type
US20140171852A1 (en) * 2012-12-19 2014-06-19 Ophthalmic Implants Private Limited Trocar and trocar-needle integrated system for glaucoma drainage surgery
US20140343357A1 (en) * 2009-03-09 2014-11-20 A.M. Surgical, Inc. Slotted clear cannula
US20150151078A1 (en) * 2013-12-02 2015-06-04 Somsak Bhitiyakul Catheter
US20150328434A1 (en) * 2012-07-03 2015-11-19 University Hospitals Of Leicester Nhs Trust Delivery Apparatus
US20170120014A1 (en) * 2015-10-28 2017-05-04 Becton, Dickinson And Company Intravenous catheter device with integrated extension tube
CN106714890A (en) * 2014-08-04 2017-05-24 索福特医疗美学公司 Device for inserting a blunt-tip cannula under the skin of a patient
US10238852B2 (en) 2016-10-05 2019-03-26 Becton, Dickinson And Company Septum housing
US10357636B2 (en) 2015-10-28 2019-07-23 Becton, Dickinson And Company IV access device having an angled paddle grip

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498482A (en) * 1979-12-13 1985-02-12 Medtronic, Inc. Transvenous pacing lead having improved stylet
JPS617684Y2 (en) * 1979-12-13 1986-03-10
FR2474317B1 (en) * 1980-01-29 1983-11-25 Technological Supply
GB2099703B (en) * 1981-06-10 1985-01-23 Downs Surgical Ltd Biopsy needle
US5322512A (en) * 1993-05-07 1994-06-21 The Kendall Company Splittable needle for epidural anesthesia

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA628292A (en) * 1961-10-03 C. Elliot Eric Catheter and needle assembly
GB904237A (en) * 1959-01-07 1962-08-22 Eric Charles Elliot Device for fluid transference to or from a human or other body
US3099988A (en) * 1961-12-07 1963-08-06 Glusburg Abraham Hypodermic needle
US3323523A (en) * 1964-11-18 1967-06-06 Abbott Lab Intravenous catheter assembly with divisible needle sheath portions
US3370587A (en) * 1962-07-17 1968-02-27 Fernando R. Vizcarra Method of introducing a catheter into a body vessel
US3459183A (en) * 1966-05-20 1969-08-05 Voys Inc Le Catheter placement unit with anesthetic
US3633579A (en) * 1967-05-24 1972-01-11 Sherwood Medical Ind Inc Catheter placement device and method
US3677244A (en) * 1969-08-04 1972-07-18 Extracorporeal Med Spec Removable catheter needle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330278A (en) * 1964-06-22 1967-07-11 Louis S Santomieri Hypodermic needle for a cannula placement unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA628292A (en) * 1961-10-03 C. Elliot Eric Catheter and needle assembly
GB904237A (en) * 1959-01-07 1962-08-22 Eric Charles Elliot Device for fluid transference to or from a human or other body
US3099988A (en) * 1961-12-07 1963-08-06 Glusburg Abraham Hypodermic needle
US3370587A (en) * 1962-07-17 1968-02-27 Fernando R. Vizcarra Method of introducing a catheter into a body vessel
US3323523A (en) * 1964-11-18 1967-06-06 Abbott Lab Intravenous catheter assembly with divisible needle sheath portions
US3459183A (en) * 1966-05-20 1969-08-05 Voys Inc Le Catheter placement unit with anesthetic
US3633579A (en) * 1967-05-24 1972-01-11 Sherwood Medical Ind Inc Catheter placement device and method
US3677244A (en) * 1969-08-04 1972-07-18 Extracorporeal Med Spec Removable catheter needle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
C. R. Bard Catalogue 1940 p. 23 (Item No. 403). *
Gaertner Surg. Gyne. & Obstet. Vol. 119, No. 3, Sept. 1964, pp. 599 600. *

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921631A (en) * 1972-06-21 1975-11-25 Vicra Sterile Inc Catheter insertion device and method of catheter introduction
US4020835A (en) * 1973-08-16 1977-05-03 Boehringer Ingelheim Gmbh Catheter placement assembly
US3995628A (en) * 1975-04-25 1976-12-07 Travenol Laboratories, Inc. Catheter insertion device
USD245451S (en) * 1975-09-24 1977-08-16 Vital Assists, Inc. Catheter
US4037599A (en) * 1976-01-26 1977-07-26 Raulerson James D Continuous flow catheter device
US4362156A (en) * 1979-04-18 1982-12-07 Riverain Corporation Intravenous infusion assembly
US4250881A (en) * 1979-08-29 1981-02-17 Quest Medical, Inc. Catheter insertion device
US4576589A (en) * 1983-03-28 1986-03-18 Codman & Shurtleff, Inc. Trocar
US4955890A (en) * 1986-01-16 1990-09-11 Vitaphore Corporation Surgical skin incision device, percutaneous infection control kit and methods of use
US5304140A (en) * 1987-08-28 1994-04-19 Terumo Kabushiki Kaisha Catheter for introduction into blood vessel
US5098393A (en) * 1988-05-31 1992-03-24 Kurt Amplatz Medical introducer and valve assembly
US4973305A (en) * 1989-12-08 1990-11-27 David Goltzer Method and apparatus for inserting and retaining an epidural catheter
US5117836A (en) * 1990-10-22 1992-06-02 Millar Instruments, Inc. Method for measuring intracranial fluid characteristics
WO1994025096A1 (en) * 1993-04-26 1994-11-10 Jungnelius Bjoern Erik Method and device for catheterization
US5735828A (en) * 1993-04-26 1998-04-07 Jungnelius; Bjorn Erik Method and device for catheterization
US5545136A (en) * 1993-09-14 1996-08-13 Berger; J. Lee Grooved catheter director apparatus
WO1995020991A1 (en) * 1994-02-04 1995-08-10 Cma/Microdialysis Holding Ab Dialysis combination and microdialysis probe and insertion means intendent for said combination
US5741284A (en) * 1994-02-04 1998-04-21 Cma/Microdialysis Holding Ab Dialysis combination and microdialysis probe and insertion device
US5718239A (en) * 1996-06-21 1998-02-17 Becton, Dickinson And Company Method of activating a needle assembly having a telescoping shield
US5893845A (en) * 1996-06-21 1999-04-13 Becton Dickinson & Company Telescoping needle shield
US5853391A (en) * 1996-07-01 1998-12-29 Medcare Medical Group, Inc. Slotted regional anesthesia needle
US6796976B1 (en) * 1998-03-06 2004-09-28 Scimed Life Systems, Inc. Establishing access to the body
US20050049570A1 (en) * 1998-03-06 2005-03-03 Yem Chin Apparatus and method for establishing access to the body
US7678100B2 (en) 1998-03-06 2010-03-16 Boston Scientific Scimed, Inc. Apparatus for establishing access to the body
WO2000043056A1 (en) * 1999-01-21 2000-07-27 Kennedy Thomas M Sheath, epidural catheter system, and method for inserting a catheter
US6224586B1 (en) * 1999-09-04 2001-05-01 Endosonics Corporation Positioning device
US6939326B1 (en) 2000-10-24 2005-09-06 Vivek Thappa Closed-end infusion catheter with an introducer and a method for using the same
EP1201263A3 (en) * 2000-10-24 2002-08-21 Vivek Thappa Closed-end infusion catheter and an introducer
US20040243096A1 (en) * 2001-09-14 2004-12-02 Pedro Acha Gandarias Catheter and use method thereof
US20030093009A1 (en) * 2001-11-13 2003-05-15 Becton, Dickinson And Company Needle safety device
USRE43473E1 (en) 2001-11-13 2012-06-12 Becton, Dickinson And Company Needle safety device
US6984223B2 (en) 2001-11-13 2006-01-10 Becton, Dickinson And Company Needle safety device
US20040133172A1 (en) * 2002-06-07 2004-07-08 Becton, Dickinson And Company Needle safety device
US6997913B2 (en) 2002-06-07 2006-02-14 Becton, Dickinson And Company Needle safety device
US20050245874A1 (en) * 2002-11-20 2005-11-03 Vygon Device for locoregional anesthesia and method for making the cannula of said device
US20060253071A1 (en) * 2003-06-16 2006-11-09 Giuseppe Zattera Diagnostic catheter and its method of application
US8357127B2 (en) 2003-09-25 2013-01-22 C. R. Bard, Inc. Pre-molded bifurcation insert
US20110098680A1 (en) * 2003-09-25 2011-04-28 C. R. Bard, Inc. Pre-molded bifurcation insert
US7896853B2 (en) 2003-09-25 2011-03-01 C. R. Bard, Inc. Pre-molded bifurcation insert
US20050070878A1 (en) * 2003-09-25 2005-03-31 Daniel Triplett Pre-molded bifurcation insert
US20100174291A1 (en) * 2005-07-27 2010-07-08 Galt Medical Corp. Catheter and tunneling device therefor
US20070078478A1 (en) * 2005-07-27 2007-04-05 Atkins Joseph R Catheter and tunneling device therefor
US8251975B2 (en) * 2005-07-27 2012-08-28 Atkins Joseph R Catheter and tunneling device therefor
US20070066964A1 (en) * 2005-07-27 2007-03-22 Atkins Joseph R Catheter and Tunneling Device Therefor
US20100036331A1 (en) * 2006-10-23 2010-02-11 Luyi Sen Safety Transfusion Catheter
US8167851B2 (en) * 2006-10-23 2012-05-01 Sun Medical-Scientific (Shanghai) Co., Ltd. Safety transfusion catheter
US20140343357A1 (en) * 2009-03-09 2014-11-20 A.M. Surgical, Inc. Slotted clear cannula
WO2013064215A1 (en) * 2011-10-19 2013-05-10 B. Braun Medical Sas Catheter with removable cannula for puncturing a body cavity and cannula for the use with a catheter which can be moved in the cannula
FR2981575A1 (en) * 2011-10-19 2013-04-26 Braun Medical Sas Catheter with removable cannula for the punching of body cavities and a cannula of this type
US20150328434A1 (en) * 2012-07-03 2015-11-19 University Hospitals Of Leicester Nhs Trust Delivery Apparatus
US10065020B2 (en) * 2012-07-03 2018-09-04 University Hospitals Of Leicester Nhs Trust Delivery apparatus
US20140171852A1 (en) * 2012-12-19 2014-06-19 Ophthalmic Implants Private Limited Trocar and trocar-needle integrated system for glaucoma drainage surgery
US20150151078A1 (en) * 2013-12-02 2015-06-04 Somsak Bhitiyakul Catheter
RU2696529C2 (en) * 2014-08-04 2019-08-02 Софт Медикал Эстетикс Device for insertion of cannula with blunt tip under patient's skin
CN106714890A (en) * 2014-08-04 2017-05-24 索福特医疗美学公司 Device for inserting a blunt-tip cannula under the skin of a patient
US20170209654A1 (en) * 2014-08-04 2017-07-27 Soft Medical Aesthetics Device for inserting a blunt-tip cannula under the skin of a patient
US10357636B2 (en) 2015-10-28 2019-07-23 Becton, Dickinson And Company IV access device having an angled paddle grip
US20170120014A1 (en) * 2015-10-28 2017-05-04 Becton, Dickinson And Company Intravenous catheter device with integrated extension tube
US10238852B2 (en) 2016-10-05 2019-03-26 Becton, Dickinson And Company Septum housing

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NO132921B (en) 1975-10-27
ES416128A1 (en) 1976-06-01
IL42534A (en) 1975-12-31
IL47888A (en) 1976-03-31
SE429100B (en) 1983-08-15
NO132921C (en) 1976-02-04
BE801237A (en) 1973-12-21
IL42534D0 (en) 1973-08-29
SE7612851A (en) 1976-11-17
GB1437621A (en) 1976-06-03
GB1437622A (en) 1976-06-03
JPS572346B2 (en) 1982-01-16
ZA7303987B (en) 1975-01-29
IT985710B (en) 1974-12-20
FR2189080A1 (en) 1974-01-25
CH579922A5 (en) 1976-09-30
DK17381A (en) 1981-01-15
IL47888D0 (en) 1975-11-25
JPS5743262B2 (en) 1982-09-13
ZA7406318B (en) 1975-02-26
CH584550A5 (en) 1977-02-15
FR2189080B1 (en) 1978-07-13
IE38444L (en) 1973-12-21
CA1020034A1 (en)
NL7308157A (en) 1973-12-27
IE38444B1 (en) 1978-03-15
SE404491B (en) 1978-10-09
JPS56125059A (en) 1981-10-01
IE38445B1 (en) 1978-03-15
DE2331333A1 (en) 1974-01-10
CA1020034A (en) 1977-11-01
AU5701573A (en) 1974-12-19
BE801237A1 (en)
JPS4963291A (en) 1974-06-19

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