CA2045159A1 - Catheter clamp - Google Patents
Catheter clampInfo
- Publication number
- CA2045159A1 CA2045159A1 CA 2045159 CA2045159A CA2045159A1 CA 2045159 A1 CA2045159 A1 CA 2045159A1 CA 2045159 CA2045159 CA 2045159 CA 2045159 A CA2045159 A CA 2045159A CA 2045159 A1 CA2045159 A1 CA 2045159A1
- Authority
- CA
- Canada
- Prior art keywords
- catheter
- clamp
- suturing
- members
- skin
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- -1 polyethylene Polymers 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 210000005245 right atrium Anatomy 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000004731 jugular vein Anatomy 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
ABSTRACT
A catheter clamp adapted to accommodate catheters of varying diameters, particularly CVP catheters, and which is adapted to secure the catheter to the skin by suturing irrespective of the distance the proximal end of the catheter extends from the body, the clamp being characterized by having top and bottom members hinged at one end whereby to be movable between an open position for receiving the catheter and a closed position for securing the catheter between the two members, the inner surfaces of each of the members being resilient whereby to engage the catheter securely therebetween when the members are brought into the closed position, the bottom member having at least two suturing eyes for suturing to the skin.
A catheter clamp adapted to accommodate catheters of varying diameters, particularly CVP catheters, and which is adapted to secure the catheter to the skin by suturing irrespective of the distance the proximal end of the catheter extends from the body, the clamp being characterized by having top and bottom members hinged at one end whereby to be movable between an open position for receiving the catheter and a closed position for securing the catheter between the two members, the inner surfaces of each of the members being resilient whereby to engage the catheter securely therebetween when the members are brought into the closed position, the bottom member having at least two suturing eyes for suturing to the skin.
Description
TITLE CATHET~R CLAMP
BACKGROUND OF THE INVENTION
Central Venous Pressure (CVP) Catheters are of course well known in the art. In addition to a lumen for monitoring CVP, they may and typically will contain one or more additional lumens for performing other functions such as blood sampling, administering medicaments or feeding, etc.
In any case, they are typically placed through the internal and external jugular vein and vena cava in or near the heart, e.g. to sit outside the right atrium. When so positioned, the proximal end of the catheter tube extends outside the body in the neck region.
After placement, it is extremely important that the catheter remain in place. Any forward movement could cause the catheter tip to come into pointed contact with the soft tissue of the vena cava or right atrium of the heart which could cause the tip to erode away tissue and, moreover, perforation of the vessel or heart could occur.
For these reasons, it is common practice to suture the catheter tube to the skin in close proximity to the locus where the catheter extends from the body.
The suturing may be accomplished by providing suture eyes in the catheter manifold from which the proximal end of the lumen or lumens extends. However, if the distal end of the catheter is not inserted a sufficient length into the body, the manifold may lie in close proximity to the ear~ a clearly inappropriate position for suturing through the suture eyes in the manifold. Consequently, a separate suturing means lying further down in the neck region is required.
204SlSg As will be appreciated, such means must provide for tightly securing the catheter in place as well as having suture eyes.
Since catheters come in various diameters, either a plurality of different size catheter clamps must be designed so as to be capable of accommodating the various sizes o~
catheters to be secured in place to prevent movement.
Stated simply, the present invention is directed to the task of providing a catheter clamp of simplified construction and design and which can accommodate catheters of different diameters, which clamp can also secure the cathe~er to the skin by suturing irrespective of the distance the proximal end o the catheter extends from the body.
BRIEF DESCRIPTION OF THE INVENTION
In accordance with the present invention, this task is solved in a simple and elegant manner by providing a catheter clamp hlnged at one end so as to be movable from an open position for receiving the catheter and a closed position to secure the catheter, the opposed inner surfaces of the clamp having resilient pads for engaging the catheter therebetween, the clamp further having sutures for securing the clamp to the skin.
BRIEF DESCRIPTION OF DRAWING
Fig. 1 is a perspective view of the catheter clamp of this invention in the open position for receiving a catheter; and Fig. 2 is a perspPctive view of the clamp of Fig. 1 in the closed position for securing a catheter in place.
~0~5159 DETAILED DESCRIPTION OF THE INVENTION
As heretofore mentioned, the present invention is directed to a novel catheter clamp for retaining a catheter in place by suturing to the skin.
While it is particularly directed to securing CVP
catheters such as the "Safetrak" (trademark oE The Kendall Company, assigned of the present invention) single, double and/or triple lumen central venous pressure catheters, the novel clamp oE this invention is not so limited in use. It is visualized that it may also be used to retain other catheters in place, e.g. epidural or continuous spinal catheters.
The invention may be more readily understood by reference to the accompanying illustrative drawings taken in conjunction with the following detailed description.
As shown in the drawings, clamp 10 has top and bottom members 12 and 14, respectively, secured together at one edge by living hinge 16 so that they are movable between an open position (Fig. 1) to receive the catheter and a closed position (Fig. 2) for securing the catheter. The inner surfaces of the top and bottom members contain resilient pads 18 and 20, respectively, between which the catheter is to be engaged.
The bottom member 14 has a platform or guideway 22 for the catheter and at least two suture eyes 24 for suturing the catheter clamp to the skin. As shown, the eyes 24 are preferably on opposite sides of the guideway 22 adjacent to the point where the catheter is engaged by the clamp. Placing the suture eyes in this position guards against any unwanted and harmful movement of the catheter induced by a "rocking" motion of the clamp after suturing in place.
20451~9 A latch 26 cooperates with a latch plate 28 in per se known manner to retain the clamp in the closed position.
(Fig. 2).
Preferably, guiderails 30 are provided to insure retention of the catheter on the guideway 22.
In use, the catheter 32 is inserted in Clamp 10 at a place close to where the proximal end 34 of the catheter extends from the skin. The respective members 12, 14 are then brought in superposition to engage the catheter (as shown in ~ig. 2) and the latch 26 is slid over the latch plate to retain the clamp in the closed position and thus secure the catheter to the clamp.
The assembly of the clamp and catheter may then be sutured to the skin in known manner.
The particular materials which may be utilized in preparing the clamp 10 per se comprise no part of this invention and their selection will be readily apparent to the skilled worker in the light of this description.
Elements 12 and 14 may, for example, be made from any suitabl~ rigid or semi-rigid plastic, e.g. a polyolefin such as polyethylene, polypropylene, polyisobutylene, a polyester such as polyethylene terephthalate, etc., polypropylene being preferred.
While hinge 16 has been described as being a living hinge,i.e. a hinge provided in a unitary construction wherein the hinged area is thinned out to render it pivotable, it will be appreciated that mechanical hinges may be employed instead.
Resilient pads 18, 20 may be in -the form of a sponge or foam and may comprise a rubbery material or woven or nonwoven fibers. As will be appreciated, they should be of sufficien~
resilience so as not to compress the catheter unduly to lower the gap of the catheter lu~ens or otherwise impaix its 204~1~;9 function. Where found desirable or expedient to do so, the surface of either or both of the pads may contain a pressure-sensitive adhesive coating.
It will be appreciated that various changes may be made in the design of the novel catheter clamp of this invention without departing from the scope of the invention herein contemplated.
Accordingly, the foregoing description and accompanying drawing shall be taken as illustrative and not in a limiting sense.
BACKGROUND OF THE INVENTION
Central Venous Pressure (CVP) Catheters are of course well known in the art. In addition to a lumen for monitoring CVP, they may and typically will contain one or more additional lumens for performing other functions such as blood sampling, administering medicaments or feeding, etc.
In any case, they are typically placed through the internal and external jugular vein and vena cava in or near the heart, e.g. to sit outside the right atrium. When so positioned, the proximal end of the catheter tube extends outside the body in the neck region.
After placement, it is extremely important that the catheter remain in place. Any forward movement could cause the catheter tip to come into pointed contact with the soft tissue of the vena cava or right atrium of the heart which could cause the tip to erode away tissue and, moreover, perforation of the vessel or heart could occur.
For these reasons, it is common practice to suture the catheter tube to the skin in close proximity to the locus where the catheter extends from the body.
The suturing may be accomplished by providing suture eyes in the catheter manifold from which the proximal end of the lumen or lumens extends. However, if the distal end of the catheter is not inserted a sufficient length into the body, the manifold may lie in close proximity to the ear~ a clearly inappropriate position for suturing through the suture eyes in the manifold. Consequently, a separate suturing means lying further down in the neck region is required.
204SlSg As will be appreciated, such means must provide for tightly securing the catheter in place as well as having suture eyes.
Since catheters come in various diameters, either a plurality of different size catheter clamps must be designed so as to be capable of accommodating the various sizes o~
catheters to be secured in place to prevent movement.
Stated simply, the present invention is directed to the task of providing a catheter clamp of simplified construction and design and which can accommodate catheters of different diameters, which clamp can also secure the cathe~er to the skin by suturing irrespective of the distance the proximal end o the catheter extends from the body.
BRIEF DESCRIPTION OF THE INVENTION
In accordance with the present invention, this task is solved in a simple and elegant manner by providing a catheter clamp hlnged at one end so as to be movable from an open position for receiving the catheter and a closed position to secure the catheter, the opposed inner surfaces of the clamp having resilient pads for engaging the catheter therebetween, the clamp further having sutures for securing the clamp to the skin.
BRIEF DESCRIPTION OF DRAWING
Fig. 1 is a perspective view of the catheter clamp of this invention in the open position for receiving a catheter; and Fig. 2 is a perspPctive view of the clamp of Fig. 1 in the closed position for securing a catheter in place.
~0~5159 DETAILED DESCRIPTION OF THE INVENTION
As heretofore mentioned, the present invention is directed to a novel catheter clamp for retaining a catheter in place by suturing to the skin.
While it is particularly directed to securing CVP
catheters such as the "Safetrak" (trademark oE The Kendall Company, assigned of the present invention) single, double and/or triple lumen central venous pressure catheters, the novel clamp oE this invention is not so limited in use. It is visualized that it may also be used to retain other catheters in place, e.g. epidural or continuous spinal catheters.
The invention may be more readily understood by reference to the accompanying illustrative drawings taken in conjunction with the following detailed description.
As shown in the drawings, clamp 10 has top and bottom members 12 and 14, respectively, secured together at one edge by living hinge 16 so that they are movable between an open position (Fig. 1) to receive the catheter and a closed position (Fig. 2) for securing the catheter. The inner surfaces of the top and bottom members contain resilient pads 18 and 20, respectively, between which the catheter is to be engaged.
The bottom member 14 has a platform or guideway 22 for the catheter and at least two suture eyes 24 for suturing the catheter clamp to the skin. As shown, the eyes 24 are preferably on opposite sides of the guideway 22 adjacent to the point where the catheter is engaged by the clamp. Placing the suture eyes in this position guards against any unwanted and harmful movement of the catheter induced by a "rocking" motion of the clamp after suturing in place.
20451~9 A latch 26 cooperates with a latch plate 28 in per se known manner to retain the clamp in the closed position.
(Fig. 2).
Preferably, guiderails 30 are provided to insure retention of the catheter on the guideway 22.
In use, the catheter 32 is inserted in Clamp 10 at a place close to where the proximal end 34 of the catheter extends from the skin. The respective members 12, 14 are then brought in superposition to engage the catheter (as shown in ~ig. 2) and the latch 26 is slid over the latch plate to retain the clamp in the closed position and thus secure the catheter to the clamp.
The assembly of the clamp and catheter may then be sutured to the skin in known manner.
The particular materials which may be utilized in preparing the clamp 10 per se comprise no part of this invention and their selection will be readily apparent to the skilled worker in the light of this description.
Elements 12 and 14 may, for example, be made from any suitabl~ rigid or semi-rigid plastic, e.g. a polyolefin such as polyethylene, polypropylene, polyisobutylene, a polyester such as polyethylene terephthalate, etc., polypropylene being preferred.
While hinge 16 has been described as being a living hinge,i.e. a hinge provided in a unitary construction wherein the hinged area is thinned out to render it pivotable, it will be appreciated that mechanical hinges may be employed instead.
Resilient pads 18, 20 may be in -the form of a sponge or foam and may comprise a rubbery material or woven or nonwoven fibers. As will be appreciated, they should be of sufficien~
resilience so as not to compress the catheter unduly to lower the gap of the catheter lu~ens or otherwise impaix its 204~1~;9 function. Where found desirable or expedient to do so, the surface of either or both of the pads may contain a pressure-sensitive adhesive coating.
It will be appreciated that various changes may be made in the design of the novel catheter clamp of this invention without departing from the scope of the invention herein contemplated.
Accordingly, the foregoing description and accompanying drawing shall be taken as illustrative and not in a limiting sense.
Claims (10)
1. A catheter clamp adapted to accommodate catheters of varying diameters and which is adapted to secure the catheter to the skin by suturing irrespective of the distance the proximal end of the catheter extends from the body, said clamp having top and bottom members hinged at one end to be movable between an open position for receiving the catheter and a closed position in superposition to secure the catheter therebetween, the inner surface of each said member being resilient whereby to engage the catheter therebetween when said members are brought into the closed position, said bottom member having at least two suturing eyes for suturing said clamp to the skin.
2. A clamp as defined in Claim 1 wherein said bottom member has a platform providing a guideway for positioning the proximal end of the catheter between said members.
3. A clamp as defined in Claim 2 wherein said suturing eyes comprise at least one suture eye on each of the opposed sides of the platform, whereby to prevent any unwanted and harmful movement of the catheter after suturing to the skin by rocking.
4. A clamp as defined in Claim 2 including a guiderail on opposed sides of the platform to insure retention of the catheter on the platform.
5. A clamp as defined in Claim 1 including latching means for retaining the members in the closed position, whereby to prevent accidental or unwanted release of the catheter from the clamp.
6. A clamp as defined in Claim 1 wherein each of the resilient inner surfaces comprises a resilient pad.
7. A clamp as defined in Claim 6 wherein said pad comprises a sponge or foam of a rubbery material.
8. A clamp as defined in Claim 6 wherein the outer surface of at least one of the pads as a pressure-sensitive adhesive coating.
9. A clamp as defined in Claim 1 wherein the hinge is a living hinge.
10. A clamp as defined in Claim 1 wherein each of the top and bottom members comprises a rigid or semi-rigid plastic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US58888590A | 1990-09-27 | 1990-09-27 | |
| US588,885 | 1990-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2045159A1 true CA2045159A1 (en) | 1992-03-28 |
Family
ID=24355707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2045159 Abandoned CA2045159A1 (en) | 1990-09-27 | 1991-06-21 | Catheter clamp |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2045159A1 (en) |
-
1991
- 1991-06-21 CA CA 2045159 patent/CA2045159A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |