EP4076334A1 - Raccord et système de raccordement pour un emballage médical et procédé de fourniture d'un liquide pour un emballage médical - Google Patents

Raccord et système de raccordement pour un emballage médical et procédé de fourniture d'un liquide pour un emballage médical

Info

Publication number
EP4076334A1
EP4076334A1 EP20820177.2A EP20820177A EP4076334A1 EP 4076334 A1 EP4076334 A1 EP 4076334A1 EP 20820177 A EP20820177 A EP 20820177A EP 4076334 A1 EP4076334 A1 EP 4076334A1
Authority
EP
European Patent Office
Prior art keywords
connector
connection
sleeve
sealing element
sealing head
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.)
Pending
Application number
EP20820177.2A
Other languages
German (de)
English (en)
Inventor
Torsten Brandenburger
Janine SEIDEL
Christian NITSCHE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fresenius Kabi Deutschland GmbH
Original Assignee
Fresenius Kabi Deutschland GmbH
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
Application filed by Fresenius Kabi Deutschland GmbH filed Critical Fresenius Kabi Deutschland GmbH
Publication of EP4076334A1 publication Critical patent/EP4076334A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048—Connecting means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1412—Containers with closing means, e.g. caps
    • A61J1/1418—Threaded type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
    • A61J1/10—Bag-type containers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1406—Septums, pierceable membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/1475—Inlet or outlet ports
    • A61J1/1481—Inlet or outlet ports with connection retaining means, e.g. thread or snap-fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14—Details; Accessories therefor
    • A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/202—Separating means
    • A61J1/2044—Separating means having slits
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1072—Tube connectors; Tube couplings with a septum present in the connector

Definitions

  • the invention relates to a connector for medical packaging, a medical packaging equipped with the connector and a connection system which comprises the connector.
  • the invention also relates to an apheresis set and a method for providing a fluid connection to medical packaging.
  • Connection systems for medical packaging, in particular for infusion bags, are known from practice in a large number of variants.
  • connection systems generally include a septum which seals the connector and which is pierced with a spike or a needle in order to establish a fluid connection.
  • connection system for medical containers is shown, for example, in the document WO 2016/188957 A1 (applicant: Fresenius Kabi Kunststoff GmbH).
  • Connection systems based on the so-called Correct Connect standard are used in particular for apheresis sets. over this standard is intended to provide a uniform connection system in which the hose connection comprises an external thread via which the hose connection is connected to the connector.
  • connection system known from the aforementioned laid-open specification is therefore not suitable for the Correct Connect standard.
  • the document US 2019/0184152 A1 describes a male connector for connecting two hose lines.
  • a valve body is movably arranged in the connector.
  • a hollow body with a tip is provided, which supports the opening of the valve body.
  • the tip of the hollow body pierces the sealing head of the valve body.
  • the invention is based on the object of providing a connector which has an internal thread and which ensures a seal with high reliability when the connector is unscrewed.
  • the flow should not be significantly impaired in the connected state.
  • it should in particular be possible to provide the interior of the connector in a sterile manner.
  • the object of the invention is already achieved by a connector or a connection system with a connector and by a method for providing a fluid connection to medical packaging according to one of the independent claims.
  • the invention relates to a connector for medical packaging, the connector comprising an attachment part with a sealing element and the sealing element having a sealing head with at least one slot.
  • the sealing head sits in an inner sleeve of the attachment part, with at least one body section adjoining the sealing head which has a larger outer diameter than the sealing head.
  • the attachment part has an outer sleeve surrounding the inner sleeve with an internal thread.
  • an interior of the sealing element is free of a body, in particular a hollow body, with a tip, which is intended to support the opening of the sealing element, in particular the sealing head. This does not significantly affect the flow in the connector.
  • connection comprising an inner connection sleeve for providing a fluid connection is screwed in and unscrewed again can be, wherein a tightness of the connector is reliably guaranteed after removal of the connection.
  • the sealing element comprises a sealing head with at least one slot. When the diameter of the sealing head widens, the slot releases an opening which provides a fluid connection and into which the inner connector sleeve can penetrate.
  • a fuselage section which adjoins the sealing head and which has a larger outer diameter than the sealing head and which is surrounded by a gap, ensures that the fuselage section can expand and thus also when the connection is attached and the connection head is pushed back through the connection inner sleeve can expand the sealing head in a defined manner.
  • the connector preferably comprises a lower part with an upper part designed as an attachment part.
  • the attachment part is connected to the lower part, in particular latched onto the lower part.
  • the attachment part provides an inner sleeve into which the connection inner sleeve can be inserted.
  • the inner sleeve is surrounded by an outer sleeve with an internal thread, which is used to screw in the outer connection sleeve.
  • the connector is thus designed with two walls, at least in a front region, and comprises the inner sleeve, which is surrounded at least in sections by the outer sleeve with the inner thread.
  • the sealing head preferably protrudes into the inner sleeve when it is not connected.
  • the attachment part Since the thread only extends over a front area of the connector, the attachment part, viewed from the front, changes into a single-walled configuration behind the thread of the outer sleeve.
  • This transition is preferably in a central area of the sealing element in the non-connected state.
  • the sealing element consists of an elastic material, in particular a polyurethane or a silicone, or comprises these materials.
  • an end face of the sealing head is spaced apart from an end face of the inner sleeve.
  • the inner sleeve thus protrudes beyond the outer sleeve, with the sealing head of the sealing element preferably being spaced apart from the front end of the inner sleeve.
  • connection can be easily inserted into the inner sleeve and that the thread of the connection already comes into engagement before a resistance is generated by the sealing element by placing the tip of the connection inner sleeve.
  • the sealing element has a flange which, between the attachment part, which is designed as an upper part, and a lower part is arranged.
  • a defined positioning can be achieved via the flange, which is preferably attached to a rear area of the sealing element.
  • Fuselage section at least one shoulder which rests on a step of the attachment piece.
  • the sealing element has two steps, a front step within the area of the sealing head and a rear step forming the transition to the fuselage section within the meaning of the invention.
  • At least one step in particular the step at which the sealing head merges into the fuselage section, at the same time forms the transition, behind which a gap extends around the sealing element.
  • the head piece of the sealing element rests against the inner wall of the attachment part, whereas the body section is spaced apart by a gap.
  • the fuselage section When connecting, the fuselage section can expand and move radially into the gap.
  • the transition from the sealing head to the fuselage section is preferably at the level of a transition area in which the attachment part changes from a two-walled configuration to a single-walled configuration.
  • the gap can be arranged radially behind the thread. A particularly compact design of the connector is thus ensured.
  • the sealing head comprises a front section which merges via a step into a rear section with a larger outer diameter, the step of the sealing head resting against a step of the inner sleeve.
  • the sealing head is pushed back when the connection is screwed in, the front section of the sealing head being transferred into the area in which the rear section of the sealing head was previously arranged in the disconnected state.
  • the front section is thus widened approximately by the difference in diameter from the front section to the rear section and releases the channel into which the connecting inner sleeve, which initially rests on the end face of the sealing head, can penetrate.
  • the step between the front and the rear section of the sealing head and / or the step of the inner sleeve is preferably designed to be rounded or sloping, in particular ramp-shaped, in order to allow easy sliding back and forth.
  • the attachment part can be closed with a break-off part.
  • the interior of the connector can be provided sterile, for example.
  • a break-off part represents a tamper-evident closure.
  • the break-off part preferably has a maximum diameter of the inner sleeve.
  • the break-off part is therefore preferably only attached to the inner sleeve.
  • the inner sleeve can be designed in one piece with the break-off part, for example by forming a predetermined breaking point on the end face of the inner sleeve by means of a constriction.
  • the break-off part can thus be embodied in a particularly compact and material-saving manner.
  • the invention further relates to medical packaging, which is designed in particular as a film bag or bottle made of plastic or glass and which or which comprises a connector described above.
  • the invention further relates to a connection system with the connector described above and a connection which has an inner connection sleeve which is designed to engage in the inner sleeve of the connector and which has an outer connection sleeve with an external thread.
  • connection system is designed in particular in such a way that when the connection is screwed into the connector, the inner connection sleeve pushes back the sealing head, the body section of the sealing element expanding in a cavity formed by the gap and the diameter of the sealing head increasing so that the slot opens and the channel is opened for the passage of liquid.
  • the inner connection sleeve which is preferably conical, penetrates the channel and is thus radially sealed by the sealing head in the connected state.
  • connection system is designed such that when the connection is screwed in, the front section of the sealing head is pushed back into a region of the attachment part in which the inside diameter of the attachment part increases, in particular behind a step.
  • connection system which, despite being reclosable, is designed in such a way that the cross section of the channel formed by the slot corresponds at least to the smallest inner cross section of the inner connection sleeve.
  • the connector In the connected state, the connector does not reduce the minimum cross section of the fluid connection.
  • the sealing head is designed in such a way that, in the disconnected state, the slot has a length which is smaller than the outer diameter of the inner connection sleeve.
  • the invention relates in particular to an apheresis set which comprises the connection system described above.
  • the apheresis set thus comprises at least one hose connection to a medical packaging, in particular to a film bag, which is provided with the connection system according to the invention.
  • an anticoagulant solution can be provided via medical packaging for the apheresis set.
  • the invention also relates to a method for providing a fluid connection to medical packaging.
  • the method is carried out in particular by means of the connection system described above and comprises the following steps:
  • a connector which comprises an attachment part with a sealing element, wherein the sealing element has an end face with at least one slot, and wherein the attachment part has an outer sleeve surrounding an inner sleeve with an internal thread,
  • connection which has an inner connection sleeve which is designed to engage in the inner sleeve of the connector and an outer connection sleeve with an external thread
  • an interior of the sealing element is free of a body, in particular a hollow body, with a tip, which is intended to support the opening of the sealing element, in particular the sealing head.
  • the opening channel is designed in particular in such a way that when it is opened, the inner connection sleeve penetrates into the channel and is thus radially sealed.
  • the sealing element described above is used in particular, which has a sealing head with a front section which comprises the end face with the slot, the front section being followed by a rear section which has a larger diameter than the front section, with Pushing back the sealing head, the front section behind a step of the attachment part is increased in diameter.
  • the sealing element deforms back, with the fluid connection being closed by a reduction in the diameter of the sealing element, in particular the sealing head, while the end face of the inner connection sleeve is still sealingly seated on the sealing element.
  • the sealing element thus contracts when the inner connection sleeve is moved back, with the tip of the inner connection sleeve still in contact at this moment ensuring that no or only a minimal amount of liquid can escape during the re-deformation.
  • FIG. 1 is a perspective view of a medical package with a connector according to the invention. In the corresponding illustration according to FIG. 2, the break-off part of the connector has been removed.
  • FIG. 4 shows the lower part of the connector in a perspective view.
  • Fig. 5 shows the sealing element in a perspective view.
  • Fig. 6 shows the upper part or attachment part in a perspective view.
  • FIG. 7 is a perspective view cut open axially along the main extension direction of the connector, the connector not yet being connected to a connection, but the break-off part having already been removed.
  • Figure 8 is a corresponding cut-away perspective view of the connector.
  • Figure 10 is a sectional view of the connector connected to a port.
  • the design of the sealing element in this illustration is schematic.
  • FIG. 11 is a detailed view of area A of FIG. 10.
  • FIG. 12 is a photograph, produced by means of a camera endoscope, of the channel which is provided by the connection piece and the connector according to the invention.
  • FIG. 13 shows the method steps according to an exemplary embodiment of the method according to the invention for providing a fluid connection.
  • connection system according to the invention will be briefly explained with reference to FIGS. 1 to 3.
  • FIG. 1 shows a perspective view of a medical packaging 20 which is provided with a connector 10 according to the invention.
  • the medical packaging 20 is designed as a film bag with a longitudinal weld seam 22 and a transverse weld seam 21.
  • the connector 10 comprises a lower part with a weld-in section 101 (see FIG. 4), which is also welded into the transverse weld seam 21 and is thus connected in a fluid-tight manner to the medical packaging 20 designed as a film bag.
  • the connector further comprises an upper part 200, which is designed as an attachment part 200 placed on the lower part 100 and which has a break-off part 201.
  • FIG. 3 is a perspective view in which the complementarily formed connection 400 of the connection system is now shown.
  • connection 400 is connected to a hose 401.
  • the medical packaging 20 and the connection system can thus be part of an apheresis set, for example.
  • connection 400 comprises an outer connection sleeve 402 which is designed to be screwed into the connector 10.
  • connection outer sleeve 402 is therefore provided with an external thread 403.
  • connection 400 comprises handling aids, which in this exemplary embodiment are designed as wings 404 extending radially outward.
  • an inner connector sleeve (405, not visible in this view) is pushed into the inner sleeve 202 of the connector 10 and the connector 400 is screwed to the connector 10.
  • the penetrating connection inner sleeve 405 opens a sealing element 300 of the connector 10.
  • FIG. 4 is a perspective view of the base 100 of the connector 10.
  • the lower part 100 comprises a weld-in section 101 for connecting to a medical one Packing 20.
  • the weld-in section 101 is designed in the shape of a boat, as a result of which it can be optimally welded into the weld seam 21 of a film bag.
  • the invention also relates to connectors mounted differently.
  • the lower part 100 comprises a head 102, on which the upper part 200 embodied as an attachment part 200 is attached, in particular latched.
  • the head 102 comprises a collar 103 which can be used to latch the upper part 200.
  • axially extending webs 104 are arranged, which act in cooperation with the upper part 200 to prevent rotation.
  • the lower part 100 provides a channel 106 which is surrounded by an axially extending web 107.
  • An annular receptacle 105 for the sealing element 300 extends around the web 107.
  • the sealing element 300 shown in a perspective view in FIG. 5 is inserted in the assembled state with the end section 310 into the receptacle 105.
  • the sealing element 300 consists of a sealing head 301 and a body section 307.
  • the sealing head 301 initially comprises a front section 302 which comprises the end face 305 which is provided with at least one slot 306 in order to form a fluid connection.
  • the front section 302 merges into a rear section 303 of the sealing head 301 via the step 304.
  • the step 304 is inclined, that is to say ramp-shaped, in order to allow the sealing head 301 to slide back and forth easily.
  • the trunk section 307 adjoins the rear section 303 of the sealing head 301 via the shoulder 308, which also forms a step.
  • the fuselage section 307 in turn has a larger diameter than the rear section 303 of the sealing head 301.
  • the shoulder 308 is only located in a front region of the trunk section 307, so that the trunk section merges into a section which has a smaller outer diameter via a step 311, which is also designed as a slope.
  • the inner diameter of the body section 307 is constant.
  • the flange 309 is arranged at the end of the body section 307.
  • An end section 310 (see FIG. 7) can follow behind the flange 309, which is designed as an axially protruding ring and which, in the connected state, engages in the receptacle 105 of the lower part 100.
  • FIG. 6 shows a perspective view of the upper part 200 designed as an attachment part 200.
  • the upper part 200 comprises a break-off part 201, which sits on the inner sleeve 202.
  • a circumferential weakening line for example a constriction, is arranged on the end face of the inner sleeve 202 at the transition to the break-off part 201 and serves as a predetermined breaking point in order to break off the break-off part 201.
  • An outer sleeve 203 which has an internal thread 209 (see FIG. 7), extends around the inner sleeve 202.
  • This internal thread 209 is used to screw in the connection 400.
  • the outer sleeve 203 comprises an external profiling 204 by means of which the connector 10 can be held firmly when the connection 400 is screwed in.
  • the rear end of the upper part 200 forms the latching section 205, which is designed to snap onto the head 102 of the lower part 100.
  • FIG. 7 shows, in an axially cut-open perspective view, the connector 10 with the break-off part 201 already removed in the non-connected state.
  • the end face of the inner sleeve 202 protrudes beyond the end face of the outer sleeve 203.
  • a channel extends through the inner sleeve 202 to the end face 305 of the sealing element 300.
  • a channel 26 which preferably has an essentially constant cross-section within the sealing element 300, extends to the front wall of the front section 302 of the sealing element 300.
  • the sealing element 300 thus closes the channel 26 in the non-connected state.
  • the outer sleeve 203 comprises the inner thread 209, which lies opposite the inner sleeve 202.
  • the sealing head 301 which in the disconnected state extends up to the level of the internal thread 209, there is a front step 206 on the inner sleeve 202.
  • the step 304 of the sealing element 300 rests on the front step 206 forms the transition from the front section 302 to the rear section 303 of the sealing head 301.
  • the upper part then comprises a middle step 207, which is arranged directly behind the internal thread 209.
  • the shoulder 308 of the sealing element 300 which forms the transition from the sealing head 301 to the fuselage section 307, rests on the middle step 207.
  • the outer wall of the sealing element 300 no longer rests against the inner wall of the upper part 200, but is spaced apart by a gap 25.
  • the gap 25 forms a cavity into which the body section 307 can expand when the sealing head 301 is pushed back by the inner connection sleeve 405.
  • the upper part 200 also has a rear step 208 within the fuselage area, which is a defined abutment the shoulder 308 of the trunk section 307 in the connected state (see FIG. 11).
  • the position of the sealing element 300 is secured at the rear on the side opposite the sealing head 301 by the end section 310, which rests against the inner wall of the receptacle 105 of the lower part 100.
  • the rear section 310 of the sealing element 300 is secured axially by the flange 309, which rests on the end face of the lower part 100.
  • the upper part 200 is positively connected to the lower part 100 via the latching section 205.
  • FIG. 8 likewise shows, in an axially cut-open perspective view, the connection 400, which in this exemplary embodiment comprises a hose 401 which can lead, for example, to an apheresis device.
  • the hose 401 is connected to the connection 400 within the area with the wings 404.
  • connection 400 comprises a preferably conical connection inner sleeve 405, which is surrounded by the connection outer sleeve 402 with the external thread 403.
  • the inner connection sleeve 405 When it is inserted into the connector 10, the inner connection sleeve 405 is first pushed into the inner sleeve 202 of the connector 10.
  • connection 400 is already centered and can easily be pushed forward until the external thread 403 of the connection
  • connection 400 in engagement with the internal thread 209 of the connector 10 comes.
  • the further advance of the connection 400 is then brought about by the screwing in.
  • the user does not have to apply greater forces, although the sealing element 300 now has to be deformed in order to provide a fluid connection.
  • the inner connection sleeve 405 can end with a step 406 or a stop, via which a defined position in the connected state is ensured in the axial direction.
  • the break-off part 201 which closes the inner sleeve 202 and which in this exemplary embodiment has a smaller maximum diameter than the inner sleeve 202, is still attached.
  • the sealing element 300 is inserted between the lower part 100 and the upper part 200 so that the connector 10 is closed by the sealing head 301.
  • FIG. 10 shows in an axial sectional view how the connection 400 is now connected to the connector 10.
  • FIG. 11 is a detailed view of area A of FIG. 10.
  • the sealing head 301 was pushed back from the front step 206 starting from the inner connection sleeve 202.
  • the front section 302 of the sealing head 301 is now seated behind the front step, so that the front section 302 has widened and the slot 306 has formed a channel 26 into which the tip of the inner connection sleeve 405 has penetrated.
  • the shoulder 308 of the transition area to the trunk section 307 now rests in a defined position on the rear step 208 of the upper part 200.
  • the fuselage section 307 has pressed into the gap 25. This displacement of material into the gap 25 enables the sealing head 301 to be axially displaced.
  • the fuselage section 307 forms a bulge or kink 312 on the inside.
  • connection 400 When the connection 400 is unscrewed again, the sealing element 300 deforms back and the connector 10 is closed again.
  • the sealing element 300 does not, for example, represent a bellows that can be axially compressed.
  • the body portion 307 is substantially cylindrical.
  • the wall of the fuselage section 307 is essentially flat.
  • FIG 9 is a photograph of the channel 26 in the connected state, taken by means of a camera endoscope, which looks into the inner connection sleeve 405.
  • the slot 306 has widened in such a way that the inner connection sleeve 405 was able to penetrate into the sealing head 301, so that the minimum cross section of the Connection inner sleeve 405 is not reduced again by the connector 10.
  • FIG. 11 shows the individual steps of the method according to the invention for providing a fluid connection according to an exemplary embodiment of the invention.
  • a connector 10 and a connection 400 are provided.
  • the break-off part 201 is then separated from the connector 10.
  • connection 400 is then inserted into the connector 10 and screwed in.
  • the sealing head 301 When screwing in, the sealing head 301 is pushed back by the inner connection sleeve 405, the body section 307 expanding in the cavity formed by the gap 25.
  • the sealing head 301 also expands, in particular in that a front section 302 of the sealing head 301 is pressed behind a front step 206 of the attachment part 200.
  • Liquid can then be withdrawn or supplied via the connection 400.
  • connection 400 When the connection 400 is unscrewed, the sealing element 300 including the sealing head 301 is formed back, with the channel 26 closing. At the moment when the front section 302 of the sealing head 301 contracts again, the inner connection sleeve 405 is still seated on the end face 305 of the sealing head 301, thereby preventing liquid from escaping.
  • connection sleeve 405 then detaches from the sealing head 301 and the connection 400 can be removed.
  • the invention made it possible to provide a connector 10 which is particularly suitable for the Connect Correct system, which can be handled safely and which closes again when the connection 400 is removed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne un raccord pour un emballage médical. Le raccord comprend une partie de fixation pourvue d'un élément d'étanchéité, l'élément d'étanchéité présentant une tête d'étanchéité pourvue d'au moins une fente. La tête d'étanchéité est placée dans un manchon interne de la partie de fixation, la tête d'étanchéité étant contiguë à au moins une partie de tronc, qui présente un diamètre externe plus grand que celui de la tête d'étanchéité. Un interstice est présent entre ladite au moins une partie de tronc et une paroi interne opposée de la partie de fixation Un intérieur de l'élément d'étanchéité est libre d'un corps et présente une pointe qui est destinée à soutenir l'ouverture de la tête d'étanchéité. La pièce de fixation présente un manchon externe qui entoure le manchon interne et qui présente un taraudage.
EP20820177.2A 2019-12-17 2020-12-10 Raccord et système de raccordement pour un emballage médical et procédé de fourniture d'un liquide pour un emballage médical Pending EP4076334A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19216861 2019-12-17
PCT/EP2020/085437 WO2021122268A1 (fr) 2019-12-17 2020-12-10 Raccord et système de raccordement pour un emballage médical et procédé de fourniture d'un liquide pour un emballage médical

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USD1086453S1 (en) * 2021-12-15 2025-07-29 F. Hoffmann-La Roche Ag Medical bottle adapter
DE102022110499A1 (de) 2022-04-29 2023-11-02 Raumedic Ag Beutel zur Aufnahme eines medizinischen oder pharmazeutischen Mediums, Schlauch mit Konnektor zum Anschluss an einen solchen Beutel sowie Anordnung mit einem solchen Beutel und mit einem solchen Konnektor
US20250332328A1 (en) * 2024-04-29 2025-10-30 Terumo Bct, Inc. Sampling Methods And Devices For Medical Equipment

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WO2019187839A1 (fr) * 2018-03-27 2019-10-03 テルモ株式会社 Instrument médical

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WO2019187839A1 (fr) * 2018-03-27 2019-10-03 テルモ株式会社 Instrument médical

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