WO2017210716A1 - Agrafe à glissière améliorée - Google Patents

Agrafe à glissière améliorée Download PDF

Info

Publication number
WO2017210716A1
WO2017210716A1 PCT/AU2017/000127 AU2017000127W WO2017210716A1 WO 2017210716 A1 WO2017210716 A1 WO 2017210716A1 AU 2017000127 W AU2017000127 W AU 2017000127W WO 2017210716 A1 WO2017210716 A1 WO 2017210716A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubing
slide clamp
body portion
width region
opening
Prior art date
Application number
PCT/AU2017/000127
Other languages
English (en)
Inventor
John Fitzpatrick
Original Assignee
Medical Australia Limited
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
Priority claimed from AU2016902224A external-priority patent/AU2016902224A0/en
Application filed by Medical Australia Limited filed Critical Medical Australia Limited
Publication of WO2017210716A1 publication Critical patent/WO2017210716A1/fr

Links

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps

Definitions

  • the present invention relates to clamps for medical use and, in particular, to a slide clamp for use in infusion of fluids to a patient undergoing a medical procedure or recovering in a clinical setting. More particularly, the present invention relates to a slide clamp for controlling the flow of fluids, such as medication and electrolyte solutions, through lines used in single use intravenous (IV) infusion and transfusion, and in IV giving sets (also known as IV infusion or administration sets).
  • IV intravenous
  • the on/off control or regulation of fluid flow through IV lines plays an important role in the effective administration of fluids to patients undergoing a medical procedure or recovering in a clinical setting.
  • this control is achieved by utilizing an IV tubing clamp which is able to squeeze the walls of the tubing flat against each other at a desired location of the tubing, thereby blocking fluid flow at that location, and which is able to release the squeezing pressure on the tubing walls when required.
  • a first type of IV tubing clamp is commonly known as a pinch clamp, but it may alternatively be referred to as a "shut off click clamp, a Halkey-Roberts clamp, or a Robson clamp depending on the user. It is made of a strip of semi-flexible plastic which is generally rigid except at two flexible curved portions. The curved portions are rendered somewhat flexible by the presence of central apertures which are respectively placed in the curved portions. The apertures are also used for receiving flexible plastic tubing of a fluid flow or IV set, the tubing extending through the apertures of the pinch clamp.
  • the clamp has a pair of releasably interengageable latches which are not interengaged or locked together when it is required that fluid flow through the fitted tubing at that location.
  • the clamp is thus in an open, unstressed configuration.
  • the clamp also has a pair of projecting members which, when the latches are interengaged so that the clamp is in a closed position, abut against each other to squeeze the walls of the fitted tubing closed between them. The clamp is thus tensioned and biased to spring back to the open configuration when the latches are released from their
  • pinch clamps A problem with such pinch clamps is that they cause a slight reduction in fluid flow even when they are in t he open configuration.
  • the bulky shape of the pinch clamp also causes discomfort and other problems when used in applications where there is contact with the skin or other tissue of a patient over a prolonged period of use.
  • the presence of moving and flexible parts of the pinch clamp also make it prone to damage or improper use.
  • a standard slide clamp is made of a small, generally planar, plastic body or panel, and has a graduated opening extending along the centre of the body, but closed to the panel's edges. IV tubing is received through a widened end of the graduated opening where, in this open position of the tubing, there is no constriction or squeezing of its walls to reduce fluid flow. Pushing the tubing into a narrowed end of the graduated opening constricts the tubing and reduces the flow rate of the fluid. The tubing is thus in a closed position. Sliding the tubing back to the widened end increases the flow rate.
  • a problem with such slide clamps is that, when the tubing is in the open position, the slide clamp is not retained sufficiently tightly or at all at its desired location to prevent it sliding down along the tubing. This means that the slide clamp must be moved back up to its desired location where it can again clamp the tubing in a closed position.
  • Another problem is that, when an I V set containing such a slide clamp is packaged in a sterile, single use, pouch (or terminally sterilized pack) and then placed in a carton alongside other such pouches, the crushing forces of the other pouches in the carton , and the vacuum cycles of the earlier sterilization process, can result in the sli de clamp leaning over and causing flattening of the IV tubing in the pouches.
  • a variant of the standard slide clamp described above is the removable slide clamp. It too is made of a small plastic panel with a central graduated opening, but the opening is opened to a location along the panel's edge by a "slot on" aperture. This allows the removable slide clamp to be fitted to IV tubing after the tubing has been assembled with other components of an I V set, rather than before assembly of the IV set where, as for standard slide clamps, the IV tubing is received or threaded through the central opening. In all other respects, the removable slide clamp functions the same as the standard slide clamp, and so suffers from many of the same problems whi ch affect the standard slide clamp.
  • a slide clamp for engaging flexible tubing comprising:
  • a body having an elongated first body portion and a second body portion extending lateral ly from a first end of the first body portion
  • an opening formed continuously through a central region of the body spanning the first and second body portions, the opening having a first opening portion in the first body portion and a second opening portion in the second body portion,
  • the first opening portion being graduated in its width along the first body portion so as to have a narrowed width region at an end of the first opening portion nearest a free second end of the first body portion, the narrowed width region being sufficient to squeeze opposite walls of the tubing together when the slide clamp is in use, and a widened width region at an opposite end of the first opening portion where the first body portion meets the second body portion, the widened width region being sufficient to not squeeze opposite walls of the tubing,
  • the second opening portion having at least one projecting edge at an end of the second opening portion where the second body portion meets the first body portion, the or each projecting edge projecting across an entrance to an aperture which is dimensioned to releasably grip the tubing stably to the slide clamp when the slide clamp is not in use.
  • the slide clamp of the present invention may additionally have a "slot on" aperture, through which the tubing can be passed to enable the slide clamp to be slotted on to the tubing at or near the desired location for use and to be, after use, removed therefrom.
  • the slide clamp of the present invention may additionally have a "slot on" aperture, through which the tubing can be passed to enable the slide clamp to be slotted on to the tubing at or near the desired location for use and to be, after use, removed therefrom.
  • the slide clamp of the present invention may
  • Figure 1 is a front perspective view of a slide clamp according to a preferred embodiment of the invention
  • Figure 2 is a rear perspective view of the slide clamp of Figure 1
  • Figure 3 is a front view of the slide clamp of Figures 1 and 2
  • Figure 4 is a top view of the slide clamp of Figures 1 and 2
  • Figure 5 is a left end view of the slide clamp shown in Figure 3
  • Figure 6 is a right end view of the slide clamp shown in Figure 3,
  • Figure 7 is a front perspective view showing the slide clamp of Figure 1 engaging flexible tubing when the tubing is received through the widened width region of the first opening portion of the opening formed through the central region of the body of the slide clamp, such as when the slide clamp is fitted loosely to the tubing
  • Figure 8 is a front perspective view from a different viewing position to that of Figure 7, showing the slide clamp of Figure 1 engaging flexible tubing when the tubing is received through a narrowed width region of the first opening portion of the opening formed through the central region of the body of the slide clamp, such as when the sl ide clamp is in use to block fluid flow through the tubing,
  • Figure 9 is a similar front perspective view to that of Figure 8, showing the slide clamp of Figure 1 engaging flexible tubing when the tubing is received through an aperture of the second opening portion of the opening formed through the central region of the body of the slide clamp, the aperture being dimensioned to releasably grip the tubing stably to the slide clamp when the slide clamp is not in use and there is no blocking of fluid flow through the tubing,
  • Figure 10 is a front perspective view of a slide clamp according to another preferred embodiment of the invention.
  • Figure 1 1 is a front perspective view of a slide clamp according to yet another preferred embodiment of the invention
  • Figure 12 is a front perspective view of a slide clamp according to a still further preferred embodiment of the inventi on.
  • the slide clamp 10 which is suitable for engaging flexible tubing, has a body 12 which is formed of an elongated first body portion 14 and a second body portion 16 extending laterally from a first end 18 of the first body portion 14.
  • An opening 20 is formed continuously through a central region of the body 12 and spans the first and second body portions 14, 16.
  • the opening 20 has a first opening portion 22 in the first body portion 14 and a second open ing portion 24 in the second body portion 16.
  • the first opening portion 22 is graduated in its width W along the first body portion 14 to have a narrowed width region 26 at an end of the first opening portion nearest a free second end 28 of the first body portion.
  • the narrowed width region 26 is sufficient to squeeze together opposite walls of flexible tubing 29, such as IV set tubing, when the slide clamp 10 is in use (see Figure 8).
  • the widened width region 30 is dimensioned to not squeeze opposite walls of flexible tubing 29 when such tubing is received therethrough, such as when the slide clamp is fitted loosely to the tubing (see Figure 7).
  • the second opening portion 24 has two projecting grip edges 32, 34 at an end of the second opening portion where the second body portion 16 meets the first body portion 14. In alternative embodiments, there may be only one or more than two such projecting grip edge(s), so long as an equivalent function is maintained.
  • the projecting grip edges 32, 34 project across an entrance 36 to an aperture 38 which is dimensioned to releasably grip the tubing 29 stably to the slide clamp 10 when the slide clamp is not in use (see Figure 9).
  • the tapering width region 40 may be formed by one or more linear taper angle or continuous non-linear shape (such as a tapering curve).
  • the narrowed width region 26 is slightly tapered and provides a flow closing aperture for the tubing 29.
  • the widened width region 30 is not substantially tapered and provides a flow open and free movement aperture for the tubing 29.
  • the tapering width region 40 is substantially tapered and is formed by two distinct taper angles, each angle having a different squeezing effect on the tubing 29, and hence potentially resulting in a different flow rate of the fluid flowing through the tubing.
  • the tapering width region 40 may, if desired, therefore provide two different flow restricting apertures.
  • the primary purpose of the slide clamp 10 is to provide on/off flow control, in which fluid flow through the tubing is either blocked (i.e. flow closed) or not blocked (i.e. flow open) by the slide clamp, rather than also having the purpose of providing fluid flow at one or more restricted (i.e. flow variable) flow rates.
  • the aperture 38 of the second opening portion 24 serves advantageously as a means for the slide clamp 10 to be clipped onto the tubing 29 when there is no requirement for the slide clamp to be used to close or restrict flow of fluid through the tubing. This will prevent the slide clamp 10 falling when the tubing is in an open flow condition.
  • the general L-shaped configuration of the slide clamp 10, in which the elongated first body portion 14 serves as a long leg and the second body portion 16 serves as a short leg, also provides the advantage that, when an IV set containing the slide clamp 10 is packaged in a sterile, single use, pouch (or terminally sterilized pack) and then placed in a carton alongside other such pouches, the crushing forces of the other pouches in the carton, and the vacuum cycles of the earlier sterilization process, will not cause flattening of the IV tubing in the pouches and the subsequent associated problems.
  • the free second end 28 of the first body portion 14 has a slightly concave edge 42 which can serve as a thumb pad during its manipulation by the user.
  • the slide clamp 50 shown in Figure 10 is similar in both structure and function to the slide clamp 10, and so like features are represented by like numerals.
  • the slide clamp 50 however, has more rounded corners 52, 54 of its second body portion 16.
  • the slide clamp 60 shown in Figure 11 is also similar in both structure and function to the slide clamps 10 and 50, and so like features are also represented by like numerals, but the slide clamp 60 additionally has a "slot on" second aperture 62, through which the tubing 29 can be passed to enable the slide clamp 60 to be slotted on to the tubing at or near the desired location for use and to be, after use, removed therefrom.
  • the second aperture 62 defines an access port between a lower side edge 64 of the first body portion 14 and an adjacent edge 66 of the widened width region 30 of the opening 20.
  • the width of the second aperture 62 is such as to allow access of the tubing 29 into and out from the opening 20, as required for use of the slide clamp.
  • the slide clamp 60 can be removably fitted to IV tubing after the tubing has been assembled with other components of an IV set, rather than before assembly of the IV set where, as for other slide clamps, the IV tubing is received or threaded through the central opening.
  • the slide clamp 70 shown in Figure 12 is less similar in structure to slide clamp 10 than are slide clamps 50 and 60, but it is otherwise similar in function to those slide clamps, and so any like features are also represented by like numerals.
  • the slide clamp 70 has, most notably, its first body portion 14 formed in a curved configuration 72 to fit compactly around the tubing 29 when the tubing is received through the aperture 38 of the second opening portion in the second body portion 16 of the slide clamp.
  • the aperture 38 is dimensioned to releasably grip the tubing 29 stably to the slide clamp 70 when the slide clamp is not in use and there is no blocking of fluid flow through the tubing.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne une agrafe à glissière (10), convenant pour entrer en prise avec une tubulure souple (29), laquelle agrafe possède un corps (12) formé d'une première partie de corps allongé (14) et d'une seconde partie de corps (16) s'étendant latéralement à partir de ce dernier. Une ouverture (20), formée de manière continue à travers une région centrale du corps (12), recouvre la première et la seconde parties du corps (14, 16). L'ouverture (20) présente une première partie d'ouverture (22) dans la première partie du corps (14) et une seconde partie d'ouverture (24) dans la seconde partie du corps (16). La première partie d'ouverture (22) possède, à une extrémité, une région de largeur rétrécie (26) suffisante pour serrer ensemble les parois opposées de la tubulure (29) lorsque l'agrafe à glissière (10) est utilisée. Il existe une région de largeur agrandie (30) à une extrémité opposée de la première partie d'ouverture où la première partie du corps (14) rencontre la seconde partie du corps (16), et dimensionnée pour ne pas serrer les parois opposées de la tubulure (29) lorsqu'elle est reçue à travers cette dernière. La seconde partie d'ouverture (24) présente deux bords de préhension saillants (32, 34) à une extrémité où la seconde partie du corps (16) rencontre la première partie du corps (14). Les bords de préhension saillants (32, 34) se projettent à travers une entrée (36) vers une ouverture (38) dimensionnée pour agripper de manière amovible la tubulure (29) de manière stable au niveau de l'agrafe à glissière (10) lorsque l'agrafe à glissière n'est pas utilisée.
PCT/AU2017/000127 2016-06-07 2017-06-07 Agrafe à glissière améliorée WO2017210716A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2016902224 2016-06-07
AU2016902224A AU2016902224A0 (en) 2016-06-07 Improved slide clamp

Publications (1)

Publication Number Publication Date
WO2017210716A1 true WO2017210716A1 (fr) 2017-12-14

Family

ID=60577456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2017/000127 WO2017210716A1 (fr) 2016-06-07 2017-06-07 Agrafe à glissière améliorée

Country Status (1)

Country Link
WO (1) WO2017210716A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112105924A (zh) * 2018-02-28 2020-12-18 罗斯蒙特公司 一次性生物反应器/混合器的可拆式溶解氧传感器接口

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503327A (en) * 1947-05-07 1950-04-11 Abbott Lab Pinchcock
US2889848A (en) * 1955-12-22 1959-06-09 Redmer Sons Company Flow control clamp
US3357674A (en) * 1963-07-01 1967-12-12 Pharmaseal Lab Tubing clamp
US4307869A (en) * 1980-12-15 1981-12-29 Baxter Travenol Laboratories, Inc. One way slide clamp for tubing
US4434963A (en) * 1982-12-22 1984-03-06 Baxter Travenol Laboratories, Inc. Slide clamp including elevation stabilizer
US5026019A (en) * 1989-06-30 1991-06-25 Npbi Nederlands Produktielaboratorium Voor Bloedtransfusieapparatuur En Infusievloeistoffen B.V. One-piece slidable hose clamp
US20130131608A1 (en) * 2011-11-23 2013-05-23 Carefusion 303, Inc. Positive bolus clamp
CA2776623A1 (fr) * 2012-05-04 2013-11-04 Dilshan T. Modaragamage Collier de pincement coulissant pour catheters urologiques

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503327A (en) * 1947-05-07 1950-04-11 Abbott Lab Pinchcock
US2889848A (en) * 1955-12-22 1959-06-09 Redmer Sons Company Flow control clamp
US3357674A (en) * 1963-07-01 1967-12-12 Pharmaseal Lab Tubing clamp
US4307869A (en) * 1980-12-15 1981-12-29 Baxter Travenol Laboratories, Inc. One way slide clamp for tubing
US4434963A (en) * 1982-12-22 1984-03-06 Baxter Travenol Laboratories, Inc. Slide clamp including elevation stabilizer
US5026019A (en) * 1989-06-30 1991-06-25 Npbi Nederlands Produktielaboratorium Voor Bloedtransfusieapparatuur En Infusievloeistoffen B.V. One-piece slidable hose clamp
US20130131608A1 (en) * 2011-11-23 2013-05-23 Carefusion 303, Inc. Positive bolus clamp
CA2776623A1 (fr) * 2012-05-04 2013-11-04 Dilshan T. Modaragamage Collier de pincement coulissant pour catheters urologiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112105924A (zh) * 2018-02-28 2020-12-18 罗斯蒙特公司 一次性生物反应器/混合器的可拆式溶解氧传感器接口

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