INSERTION DEVICE FOR AN INSERTION HEAD, IN PARTICULAR FOR AN INFUSION SET
First Claim
1. An insertion device for an infusion set, the device comprising a retainer by which the infusion set can be temporarily held on the device and driver comprising a pretensionable spring for providing drive energy for an insertion movement of the infusion set, wherein the infusion set is secured by the retainer by clamping when the retainer is in an engage position and can then be moved, with simultaneous pretensioning of the spring, to an insertion movement starting position, wherein the infusion set is already separated from the retainer at the start of the insertion movement, and wherein the infusion set moves through at least part of the insertion movement free of the retainer.
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Accused Products
Abstract
An insertion device for an infusion set, the device including a retention means by which the infusion set can be temporarily held on the device and drive means including a pretensionable spring for providing drive energy for an insertion movement of the infusion set, wherein the infusion set is secured by the retention means by clamping when the retention means is in an engage position and can then be moved, with simultaneous pretensioning of the spring, to an insertion movement starting position, wherein the infusion set is already separated from the retention means at the start of the insertion movement, and wherein the infusion set moves through at least part of the insertion movement free of the retention means.
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Citations
34 Claims
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1. An insertion device for an infusion set, the device comprising a retainer by which the infusion set can be temporarily held on the device and driver comprising a pretensionable spring for providing drive energy for an insertion movement of the infusion set, wherein the infusion set is secured by the retainer by clamping when the retainer is in an engage position and can then be moved, with simultaneous pretensioning of the spring, to an insertion movement starting position, wherein the infusion set is already separated from the retainer at the start of the insertion movement, and wherein the infusion set moves through at least part of the insertion movement free of the retainer.
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2. An insertion device for an insertion head with at least one infusion cannula and/or with at least one puncturing tip for introduction into the body of a patient, comprising:
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a) at least one contact face for placing the insertion device onto an application site on the body of the patient for application of the insertion head, b) retention means with which the insertion head that is to be applied is temporarily held on the insertion device, c) drive means for effecting an insertion movement of the insertion head relative to the contact face, in the longitudinal direction of the at least one infusion cannula or puncturing tip of the insertion head ready for application, from a first position, in which the insertion head ready for application is held by the retention means such that the at least one infusion cannula and puncturing tip are set back relative to the contact face, to a second position, in which the at least one infusion cannula and puncturing tip protrude beyond the contact face to permit introduction of the at least one infusion cannula and puncturing tip into the body of the patient when the insertion movement is executed with the contact face of the insertion device placed on the body, wherein the drive means has at least one pretensionable energy-storing element for providing the drive energy, and the retention means are able to be positioned relative to the contact face in an engage position and in a standby position and are able to hold the insertion head in the engage position, and wherein the retention means, starting from the engage position, can then be brought to the standby position with the insertion head held on them, and, on reaching the standby position, the retention means hold the insertion head in the first position ready for application, whereby, at the start of the insertion movement, the insertion head is separated from the retention means such that it can execute at least a greater part of the insertion movement free of the retention means, and wherein the pretensionable energy-storing element is pretensioned upon the movement of the retention means from the engage position to the standby position. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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- 23. An arrangement comprising an insertion device and an insertion head, the insertion device comprising a retainer by which the insertion head can be temporarily held on the device and driver comprising a pretensionable spring for providing drive energy for an insertion movement of the insertion head, wherein the insertion head is secured by the retainer by clamping when the retainer is in an engage position and can then be moved, with simultaneous pretensioning of the spring, to an insertion movement starting position, wherein the insertion head is already separated from the retainer at the start of the insertion movement, and wherein the insertion head moves through at least part of the insertion movement free of the retainer, the insertion head comprising at least one infusion cannula and/or at least one puncturing tip.
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26. A method for applying an insertion head to the body of a patient, in particular an insertion head designed as an infusion set, port and/or sensor arrangement and having at least one infusion cannula and/or at least one puncturing tip, using an insertion device comprising:
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a) at least one contact face for placing the insertion device onto an application site on the body of the patient for application of the insertion head; b) retention means with which the insertion head that is to be applied is temporarily held on the insertion device; c) drive means for effecting an insertion movement of the insertion head relative to the contact face, in the longitudinal direction of an infusion cannula or puncturing tip of the insertion head ready for application, from a first position, in which the insertion head ready for application is held by the retention means such that all the infusion cannulas and puncturing tips of the insertion head are set back relative to the contact face, to a second position, in which all the infusion cannulas and puncturing tips of the insertion head protrude substantially completely beyond the contact face, in order to permit introduction of all the infusion cannulas and puncturing tips of the insertion head into the body of the patient when the insertion movement is executed with the contact face of the insertion device placed on the body, wherein the drive means has at least one pretensionable energy-storing element for providing the drive energy, and the retention means is able to be positioned relative to the contact face in an engage position and in a standby position and is designed such that the insertion head to be applied can be arranged on the retention means in the engage position such that it is held, and the retention means, starting from the engage position, can then be brought to the standby position with the insertion head held, and, on reaching the standby position, the retention means holds the insertion head in the first position ready for application, and wherein, at the start of the insertion movement, the insertion head is separated from the retention means, such that it can execute at least the greatest part of the insertion movement free of the retention means, and the pretensionable energy-storing element is pretensioned upon the movement of the retention means from the engage position to the standby position, said method comprising the steps of; a) making ready the insertion device, with the retention means arranged in the engage position; b) engaging the insertion head with the retention means such that the insertion head is held thereby; c) moving the retention means from the engage position, with the insertion head held thereon, and with pretensioning of the pretensionable energy-storing element, to the standby position in which the insertion head is held ready for application in the first position by the retention means; d) arranging the insertion device with the contact face on the desired application site on the body of the patient such that all the infusion cannulas and puncturing tips of the insertion head can penetrate correctly into the body during the insertion movement; and e) triggering the insertion movement, whereby the insertion head is separated from the retention means at the start of the insertion movement, such that it executes at least the greatest part of the insertion movement free of the retention means. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification