EP-4739231-A1 - CANNULA INSERTION SYSTEM

EP4739231A1EP 4739231 A1EP4739231 A1EP 4739231A1EP-4739231-A1

Abstract

The present technology provides a cannula insertion system (1) to insert a cannula (2) into a patient, comprising: a cannula insertion device (8) configured to insert the cannula at an insertion location into the patient, and a bandage applicator (30) configured to arrange a bandage (50) on the skin (S) of the patient, wherein the bandage applicator comprises at least one bandage holder (31) to releasably hold the bandage and wherein the bandage applicator is arranged to place a bandage at or near the insertion location before complete retraction of the cannula from the insertion location.

Inventors

OVERBEEKE, Toon Olaf
JOSEPH, Brian Robert
KARSSEN, JOHANNES GERHARD DANIËL
JONKER, Arris Cornelis
HOEVENAARS, Antonius Gerardus Leonardus
BEEKHUIS, Johan Houdijn

Assignees

Vitestro Holding B.V.

Dates

Publication Date: 20260513
Application Date: 20240705

Claims (20)

1. A cannula insertion system to insert a cannula into a patient, comprising: a cannula insertion device configured to insert the cannula at an insertion location into the patient, and a bandage applicator configured to arrange a bandage on the skin of the patient, wherein the bandage applicator comprises at least one bandage holder to releasably hold the bandage and wherein the bandage applicator is arranged to place a bandage at or near the insertion location before complete retraction of the cannula from the insertion location.
2. The cannula insertion system of claim 1 , wherein the bandage applicator is arranged to place a bandage at or near the insertion location before complete retraction of the cannula from the insertion location such that during retraction of the cannula the cannula is at least partially swiped along the bandage to remove or adsorb any blood from the cannula.
3. The cannula insertion system of claim 1 or 2, wherein the bandage applicator is arranged to releasably hold a single bandage.
4. The cannula insertion system of any of the claims 1 -3, wherein the bandage applicator comprises one or more vacuum cups, each vacuum cup being arranged to releasably hold the bandage by a vacuum force.
5. The cannula insertion system of any of the claims 1-4, wherein the bandage applicator comprises two bandage holders, each bandage holder being arranged to releasably hold the bandage.
6. The cannula insertion system of any of the preceding claims, wherein the bandage applicator comprises a pressure element to apply pressure on the insertion location after complete retraction of the cannula from the insertion location.
7. The cannula insertion system of claims 5 and 6, wherein the pressure element is arranged at least partially between the two bandage holders.
8. The cannula insertion system of claim 7, wherein the two bandage holders define a bandage holding plane and wherein the pressure element comprises a pressure surface to be pressed on the bandage, wherein the bandage holding plane can be spaced with a distance from the pressure surface such that the bandage can be arranged on the skin without the pressure surface contacting the bandage.
9. The cannula insertion system of claim 8, wherein the bandage holders are movable or compressible to decrease the distance between the bandage holding plane and the pressure surface to enable the pressure element to be pressed on the bandage.
10. The cannula insertion system of claim 8 or 9, wherein the pressure element is movable with respect to the bandage holders to decrease the distance between the bandage holding plane and the pressure surface to enable the pressure element to be pressed on the bandage.
11 . The cannula insertion system of any of the preceding claims, wherein the cannula insertion system comprises: a cannula insertion device positioning system to support and position the cannula insertion device, a bandage applicator positioning system to support and position the bandage applicator, and a control device arranged to control the cannula insertion device positioning system and the bandage applicator positioning system to position the cannula insertion device and the bandage applicator in a desired position, respectively.
12. The cannula insertion system of claim 11 , wherein the control device is arranged to control: the cannula insertion device positioning system to position the cannula insertion device in a suitable location to insert and retract the cannula into and from the patient, and the bandage applicator positioning system to position the bandage applicator in a suitable position to at least partially swipe the cannula along the bandage held by the bandage applicator during retraction of the cannula to remove or absorb any blood from the cannula and/or to cover the insertion location to shield and/or absorb any potential blood present at the insertion location.
13. The cannula insertion system of claim 12, wherein the control device is arranged to control: the bandage applicator positioning system to position the bandage applicator in a suitable position to apply with a pressure element pressure on the insertion location after complete retraction of the cannula from the insertion location and/or to adhere the bandage to the skin of the user.
14. The cannula insertion system of any of the claims 11-13, wherein the cannula insertion device positioning system and the bandage applicator positioning system are comprised in a single positioning system.
15. The cannula insertion system of any of the preceding claims, wherein the cannula insertion system comprises a bandage supply unit comprising multiple bandages, wherein the bandage applicator is arranged to take and releasably hold a single bandage from the multiple bandages.
16. The cannula insertion system of claim 15, wherein the bandage supply unit comprises: a carrier strip carrying multiple bandages, and a bandage release device to release a single bandage from the carrier strip, while being held by the bandage applicator.
17. The cannula insertion system of claim 16, wherein the bandage supply unit comprises two or more carrier strips, each carrier strip carrying multiple bandages.
18. The cannula insertion system of claim 17, wherein the two or more carrier strips comprises a first carrier strip carrying multiple bandages of a first type, and a second carrier strip carrying multiple bandages of a second type.
19. A bandage to be used in combination with a cannula insertion system as claimed in any of the preceding claims, wherein the bandage comprises: a flat bandage body comprising at least one fluid impermeable layer, an adhesive layer arranged on a skin side of the bandage body at at least two opposite regions of the bandage body to stick the bandage to the skin of the patient, and a padding arranged on the skin side of the bandage body between the two opposite regions.
20. The bandage of claim 19, wherein the bandage body is non-transparent.

Description

Cannula insertion system The present technology relates to a cannula insertion system for inserting a cannula into a body part of a patient. WO21140116 A1 discloses a cannula insertion system. In an embodiment, the cannula insertion system comprises a pressure applicator arranged to apply pressure on the insertion location after retraction of the cannula from the insertion location. The pressure applicator may comprise a pressure element, such as a pressure plate or pressure body which is pressed on the skin at the insertion location. The pressure applicator of WO21140116 A1 may comprise a bandage support to support a bandage with which pressure is exerted on the insertion location. The pressure element may press a bandage which is arranged between the pressure element and the insertion location against the skin at the insertion location to stop bleeding of the patient. The use of a bandage has the advantage that the pressure element may not have to be cleaned each time when the pressure element is used to exert a pressure on the skin. Furthermore, the bandage support may be configured to hold the bandage until the pressure applicator is stopped to apply the pressure on the skin and then release the bandage. The bandage may remain on the skin of the body of the patient to be used to stop further bleeding. It is an object of the present technology to provide a cannula insertion system with an improved pressure applicator and/or bandage applicator, or at least to provide an alternative. The present technology relates to a cannula insertion system to insert a cannula into a patient, comprising: a cannula insertion device configured to insert the cannula at an insertion location into the patient, and a bandage applicator configured to arrange a bandage on the skin of the patient, wherein the bandage applicator comprises at least one bandage holder to releasably hold the bandage and wherein the bandage applicator is arranged to place a bandage at or near the insertion location before complete retraction of the cannula from the insertion location. The bandage applicator is arranged to position the bandage supported by the bandage applicator at or near the insertion location before complete retraction of the cannula from the insertion location, i.e. the cannula being arranged at least partially in the body of the patient. At or near the insertion location means that the bandage is arranged close to the skin such that the bandage at least partially covers the insertion location to shield and/or absorb any potential blood, such as blood splatters, to prevent blood from contacting any other part of the cannula insertion system. Additionally, in some embodiments, any pressure exerted on the insertion location by the bandage applicator may avoid preventing the cannula from being retracted from the insertion location and/or may avoid applying pressure on the cannula that could result in pain or damage of the skin or blood vessels of the patient due to the cannula still being partially present in the insertion location. The bandage applicator of the present technology does therefore not have the drawback of the pressure applicator of WO21140116 A1 that the pressure applicator with an associated bandage can only be placed on the insertion location after the cannula has been completely retracted from the body of the patient with the associated result that any blood that will come from the body, for example due to retraction of the cannula from the insertion location, which provides a substantial risk of contamination of the cannula insertion system. Advantageously, the bandage applicator may be arranged to place a bandage in contact with the skin at or near the insertion location before complete retraction of the cannula without exerting a substantial pressure on the bandage at the insertion location. As a result, the insertion location can be effectively shielded for preventing transfer of any blood present at the insertion location and/or on the cannula, for example blood spatters that result from retraction of the cannula. In an alternative embodiment, the bandage applicator may be arranged to place a bandage almost in contact with the skin, e.g., holding the bandage less than 10 mm above the skin at the insertion location, for example less than 5 mm above the skin at the insertion location. Since the bandage is not pressed on the insertion location, for example by the pressure exerted by a pressure element, the bandage can still provide an option to allow a retracting movement of the cannula out of the body of the patient. Additionally or alternatively, the bandage applicator may be arranged to move the bandage directly after retraction of the cannula from the insertion location, to the skin of the patient to shield the insertion location and/or to absorb any blood at the insertion location, for example at a high speed. The bandage to be used in combination with the cannula insertion system of the present technology