Handling device and method for the production thereof
Inventors
EBETSBERGER, Franz • Kofler, Georg • OEFFERLBAUER, Florian
Assignees
Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-10772549-B2
Publication Date
2020-09-15
Expiration Date
Abstract
A handling device for medical technology includes a main body part and a front wall which define a receiving space. A cannula protrudes with its proximal cannula end into the receiving space. A hose-like sleeve is held with its distal sleeve end on at least one holding element of the holding device, which holding element is formed or arranged directly on the front wall. The holding element bears externally on the sleeve in a contact area. Moreover, a method produces a handling device of this type.
Core Innovation
The invention relates to a handling device for medical technology that includes a hollow main body part having a front wall and defining a receiving space. A needle device comprises a cannula coupled to the main body part, where a proximal cannula end protrudes into the receiving space from the front wall. A hose-shaped, elastically deformable and perforable sleeve covers the proximal cannula end, the sleeve having an open distal sleeve end and a closed proximal sleeve end.
The sleeve is held in an axial direction by a holding device formed or arranged directly on the front wall. The holding device comprises a plurality of holding elements distributed over the circumference, each holding element having a holding arm protruding from the front wall and bearing externally on the sleeve in a contact area. Each holding element further includes a retaining protuberance arranged on the holding arm and protruding towards the longitudinal axis.
To support the distal sleeve end and enable engagement, the front wall includes perforations formed next to each holding element in a radial direction towards the longitudinal axis. Each perforation has a cross-section in the axial direction with an area corresponding to a projection area of the retaining protuberance, and the open distal sleeve end is supported circumferentially between the perforations directly against the front wall in the axial direction. In embodiments, the front wall further includes an integrated centering projection extending into the open distal sleeve end, and the sleeve distal end may include a distal sleeve lip enabling positive engagement.
Claims Coverage
The partial content identifies two independent claims: clm-00001 and clm-00018. Together, they cover the device structure and a production method, including circumferential holding elements, a perforated front wall for axial support, and engagement features for an elastically deformable perforable sleeve around a cannula proximal end.
Hollow main body with receiving space for cannula proximal end
A hollow main body part with a front wall defining a receiving space, and a needle device whose cannula has a proximal cannula end protruding into the receiving space from the front wall.
Perforable elastically deformable hose-shaped sleeve covering cannula proximal end
A hose-shaped, elastically deformable and perforable sleeve with an open distal sleeve end and a closed proximal sleeve end, covering the proximal cannula end.
Circumferential holding elements directly on front wall for axial sleeve retention
A holding device formed or arranged directly on the front wall, comprising a plurality of holding elements distributed over the circumference, each with a holding arm protruding from the front wall and bearing externally on the sleeve in a contact area.
Retaining protuberances and front-wall perforations with projection-area correspondence
Each holding element has a retaining protuberance arranged on the holding arm protruding towards the longitudinal axis, and the front wall has a perforation formed next to each holding element with a cross-section in the axial direction equal to at least one projection area of the retaining protuberance, such that the open distal sleeve end is supported between the perforations directly against the front wall in the axial direction.
Integrated cannula/front-wall connection or integrated needle device on front wall
The cannula is directly connected to the front wall or formed on the front wall as an integrated part of the main body part, such that the proximal cannula end protrudes into the receiving space from the front wall.
Production method integrating sleeve and holding device with perforations and needle device connection
A method forming the elastically deformable perforable hose-shaped sleeve and the hollow main body with receiving space, forming holding device on a side of the front wall facing the receiving space with holding elements displaceable on the front wall, forming retaining protuberances and perforations through the front wall with projection-area correspondence, and arranging a needle device comprising a cannula directly with the front wall or forming the needle device as an integrated part so the proximal cannula end protrudes into the receiving space, while moving and placing the sleeve so its open distal sleeve end is supported between perforations directly against the front wall.
The device claim emphasizes a circumferential holding device directly on a front wall that axially retains a perforable elastically deformable sleeve around a cannula proximal end, with retaining protuberances and front-wall perforations configured so the distal sleeve end is supported directly against the front wall. The method claim covers forming the sleeve, main body, perforated front wall, and displaceable holding elements, and arranging the needle device integrated with the front wall while placing the sleeve to achieve the stated support and engagement geometry.
Stated Advantages
Production advantages emphasized by reducing parts and process steps, including avoiding adhesives/hardening.
Enable simplified high-throughput injection molding.
Improved process safety.
Reduced downtime.
Documented Applications
Medical handling device for receiving and handling a cannula proximal end using an elastically deformable perforable sleeve held by circumferential holding elements on a front wall.
Universal coupling of medical components using a connecting piece and adapter with airtight sealing sections and catch elements.
Interested in licensing this patent?