WO2017054833A1 - Electro mechanical blood bag and tubing sealer - Google Patents

Electro mechanical blood bag and tubing sealer Download PDF

Info

Publication number
WO2017054833A1
WO2017054833A1 PCT/EP2015/025066 EP2015025066W WO2017054833A1 WO 2017054833 A1 WO2017054833 A1 WO 2017054833A1 EP 2015025066 W EP2015025066 W EP 2015025066W WO 2017054833 A1 WO2017054833 A1 WO 2017054833A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubing
blood
blood bag
sealer
cord
Prior art date
Application number
PCT/EP2015/025066
Other languages
French (fr)
Inventor
Hassan EL YAQINE
Original Assignee
El Yaqine Hassan
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 El Yaqine Hassan filed Critical El Yaqine Hassan
Priority to PCT/EP2015/025066 priority Critical patent/WO2017054833A1/en
Publication of WO2017054833A1 publication Critical patent/WO2017054833A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B29C66/8614—Tongs, pincers or scissors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/857—Medical tube welding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/861—Hand-held tools
    • B29C66/8618—Hand-held tools being battery operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8188—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical conducting constructional aspects
    • B29C66/81881—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the electrical conducting constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B29L2023/007—Medical tubes other than catheters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

Definitions

  • the present invention relates to tubing sealers and, more particularly, a blood bag and tubing sealer generating radio frequency power to melt and weld a seal across the plastic of blood bag or tubing creating
  • a tube sealer partly suitable for this purpose is described in US 4013860 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 5349166 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 4384186 A (WILLIAM R. BURT) , US 4186292 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 4268338 A (PETERSON ELECTRONIC DIE CO.) . It discloses a tube sealer having a pair of jaws for compressing the tubing while
  • the described tube sealer is portable and has been successfully used throughout the world for many years.
  • FIGS. 1 and 2 illustrates a side view of the hand held sealer for receiving, compressing, welding and releasing fluid filled plastic blood bag and tubing;
  • FIG. 3 illustrate a top view of the desk mounted sealer for receiving
  • FIGS. 4a-4d illustrates a blood bag with (cord) blood which is centrifuged, fractionated, and sealed in compartments with the blood bag and tubing sealer;
  • FIG. 1 illustrates a hand sealer connected through a coaxial cable 5 to a radio frequency (RF) generator (not shown).
  • FIG 2 illustrates a radio frequency (RF) generator
  • the hand sealer with an internal radio frequency (RF) generator and working on batteries.
  • the hand sealer includes a manually or electrical operated trigger 6, as illustrated.
  • a manually or electrical operated trigger 6 As illustrated, To initiate a seal or weld across the blood bag 10 or tubing 14, the blood bag or tubing is placed between the fixed jaw 1 and moveable jaw 4.
  • movable jaw 4 Upon actuating trigger 6, as illustrated, movable jaw 4 is drawn toward fixed jaw 1 to squeeze or compress the blood bag at site 2 or tubing at site 3 therebetween.
  • RF energy is transmitted across the jaws through blood bag and tubing resulting in heating and subsequent melting of the blood bag or tubing to form, in combination with the compressive force of the jaws, a weld thereacross.
  • the technical advancements offered by the electro mechanical blood bag and tubing sealer include the realization of, a simple, reliable, rapid, effective and efficient apparatus for (cord) blood fractionation that aseptically separates the plasma, stem cells (buffy coat) and red blood cell component that can be stored at low temperature (cryopreservation).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • External Artificial Organs (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A pair of long jaws moveable with respect to one another whether mounted in a desk mounted sealer or hand held sealer, compresses, heats and welds liquid filled blood bag or liquid filled tubing placed therebetween. The long jaws also serve as the plates of a variable capacitor of an RF resonant circuit. The flow of RF energy across the pair of jaws, which energy heats the blood bag or tubing and, in conjunction with mechanical pressure, focused RF energy, makes the leak free weld. The sealer welds blood bag and tubing in compartments for handling (cord) blood fractionation, carried out efficiently, conveniently and with minimum danger of contamination of the collected (cord) blood or any fractionated portion or component part thereof.

Description

Description
Electro mechanical blood bag and tubing sealer
Background Art
[0001] The present invention relates to tubing sealers and, more particularly, a blood bag and tubing sealer generating radio frequency power to melt and weld a seal across the plastic of blood bag or tubing creating
compartments in a single bag closed system for handling fractionated (cord) blood.
[0002]
[0003] The sterile collecting and handling of (cord) blood and the fractionation thereof into its component parts or into smaller portions has presented numerous serious problems which have not heretofore been adequately solved. Among these problems has been that of insuring against contamination and degradation of the (cord) blood and its separated components, such as stem cells, plasma, platelets, leukocytes and erythrocytes by occlusion of and contact with air and other aseptically deleterious agents. Recognizing these problems, various attempts have been made in the past to solve them by providing closed systems consisting of a plurality of flexible plastic bags interconnected by tubing, by means of which (cord) blood or portions thereof collected in one bag might be squeezed into one or more other bags of the system without incurring any danger of contamination by infectious agents.
[0004] Since it is necessary for fractionation of the (cord) blood into its component parts to subject the (cord) blood to one or more centrifugations, the use of such plural bag closed systems has not been entirely satisfactory because of the difficulty and inconvenience encountered in fitting the several bags of the system and their appendages in the centrifuging apparatus, in addition to which the transfer of fluid from one bag to another has proved to be a cumbersome and inconvenient procedure because of the necessity of maintaining in some semblance of order the interconnecting tubing and other appendages which are incident to the multiple bag system. Further, the cost of such system is quite considerable, particularly when it is considered that in many instances the (cord) blood is not required to be separated into its components or is only required to be separated into stem cells and plasma, and that frequently the need for such separation is not known at that time the (cord) blood is initially collected, so that all of the bags of the system are not always required to be used and represent unnecessary cost and expense.
[0005] Having in mind the foregoing, it is a primary object of the may invention to provide a sealer that seals single bag closed system in compartments for handling fractionated (cord) blood and within which practically all of the operations capable of being performed in the plural bag systems now in use may be carried out efficiently, conveniently and with minimum danger of contamination of the collected (cord) blood or any fractionated portion or component part thereof.
[0006] Because of the required mobility, sealing, low cost (cord) blood
fractionation procedures and ease of operability. A tube sealer partly suitable for this purpose is described in US 4013860 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 5349166 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 4384186 A (WILLIAM R. BURT) , US 4186292 A (ENGINEERING & RESEARCH ASSOCIATES, INC.) , US 4268338 A (PETERSON ELECTRONIC DIE CO.) . It discloses a tube sealer having a pair of jaws for compressing the tubing while
simultaneously applying radio frequency energy to melt the tubing and form a weld thereacross to effect a seal. The described tube sealer is portable and has been successfully used throughout the world for many years.
[0007]
Brief Description of Drawings
[0008] The present invention will be described with greater specificity and clarity with reference to the following drawings, in which:
[0009] FIGS. 1 and 2 illustrates a side view of the hand held sealer for receiving, compressing, welding and releasing fluid filled plastic blood bag and tubing;
[0010] FIG. 3 illustrate a top view of the desk mounted sealer for receiving,
compressing, welding and releasing fluid filled plastic blood bag and tubing;
[001 1] FIGS. 4a-4d illustrates a blood bag with (cord) blood which is centrifuged, fractionated, and sealed in compartments with the blood bag and tubing sealer;
[0012]
[0013] FIG. 1 illustrates a hand sealer connected through a coaxial cable 5 to a radio frequency (RF) generator (not shown). FIG 2 illustrates a
hand sealer with an internal radio frequency (RF) generator and working on batteries. The hand sealer includes a manually or electrical operated trigger 6, as illustrated. To initiate a seal or weld across the blood bag 10 or tubing 14, the blood bag or tubing is placed between the fixed jaw 1 and moveable jaw 4. Upon actuating trigger 6, as illustrated, movable jaw 4 is drawn toward fixed jaw 1 to squeeze or compress the blood bag at site 2 or tubing at site 3 therebetween. Simultaneously, RF energy is transmitted across the jaws through blood bag and tubing resulting in heating and subsequent melting of the blood bag or tubing to form, in combination with the compressive force of the jaws, a weld thereacross.
[0014] Referring to FIG 4, sealing the liquid filled blood bag with the sealer just under the buffy coat, traps the red blood cells in the lower part of the blood bag 1 1. Rotating the blood bag and centrifuging again, drives the blood cells in the tubing 13, 15. Sealing the tubing above the buffy coat traps the plasma 12. Sealing the tube under the buffy coat traps the buffy coat with stem cells 13.
Industrial Applicability
[0015] The technical advancements offered by the electro mechanical blood bag and tubing sealer include the realization of, a simple, reliable, rapid, effective and efficient apparatus for (cord) blood fractionation that aseptically separates the plasma, stem cells (buffy coat) and red blood cell component that can be stored at low temperature (cryopreservation).

Claims

Claims
1. Apparatus for melting and sealing liquid filled blood bag or liquid filled tubing placed between two electrically conducting jaws movable to compress and seal the liquid filled blood bag or liquid filled tubing therebetween.
2. Apparatus for dividing liquid filled blood bag and liquid filled tubing into a plurality of separately sealed compartments each filled with (cord) blood components initially collected in the blood bag.
PCT/EP2015/025066 2015-09-28 2015-09-28 Electro mechanical blood bag and tubing sealer WO2017054833A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/025066 WO2017054833A1 (en) 2015-09-28 2015-09-28 Electro mechanical blood bag and tubing sealer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/025066 WO2017054833A1 (en) 2015-09-28 2015-09-28 Electro mechanical blood bag and tubing sealer

Publications (1)

Publication Number Publication Date
WO2017054833A1 true WO2017054833A1 (en) 2017-04-06

Family

ID=54557367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/025066 WO2017054833A1 (en) 2015-09-28 2015-09-28 Electro mechanical blood bag and tubing sealer

Country Status (1)

Country Link
WO (1) WO2017054833A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023038578A1 (en) * 2021-09-09 2023-03-16 Racer Technology Pte Ltd Compact tube sealer

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013860A (en) 1976-04-09 1977-03-22 Engineering & Research Associates, Inc. Hand held electro-mechanism sealer
US4186292A (en) 1977-10-11 1980-01-29 Engineering & Research Associates, Inc. Desk mounted tube sealer
US4268338A (en) 1979-08-20 1981-05-19 Peterson Electronic Die Co. Method and apparatus for RF sealing of thermoplastic layers
US4384186A (en) 1981-07-23 1983-05-17 William R. Burt Electrode sealing system for thermoplastic tube
US4488028A (en) * 1981-12-28 1984-12-11 Engineering & Research Associates, Inc. Electrode mechanical tubing sealer
US4490598A (en) * 1982-09-30 1984-12-25 Engineering & Research Associates, Inc. Blood tubing sealing unit
US4491711A (en) * 1981-12-28 1985-01-01 Engineering & Research Associates, Inc. Electro mechanical tubing sealer
US4496819A (en) * 1981-12-28 1985-01-29 Engineering And Research Associates, Inc. Jaws for an electro-mechanical tubing sealer
US4529859A (en) * 1982-09-30 1985-07-16 Engineering & Research Associates, Inc. Blood tubing sealing unit
US5349166A (en) 1991-10-31 1994-09-20 Engineering & Research Associates, Inc. RF generator for plastic tubing sealers
US20090101286A1 (en) * 2007-10-18 2009-04-23 Sumeer Tulsie P Tear seal moveable ground jaw for a tubing sealer

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013860A (en) 1976-04-09 1977-03-22 Engineering & Research Associates, Inc. Hand held electro-mechanism sealer
US4186292A (en) 1977-10-11 1980-01-29 Engineering & Research Associates, Inc. Desk mounted tube sealer
US4268338A (en) 1979-08-20 1981-05-19 Peterson Electronic Die Co. Method and apparatus for RF sealing of thermoplastic layers
US4384186A (en) 1981-07-23 1983-05-17 William R. Burt Electrode sealing system for thermoplastic tube
US4488028A (en) * 1981-12-28 1984-12-11 Engineering & Research Associates, Inc. Electrode mechanical tubing sealer
US4491711A (en) * 1981-12-28 1985-01-01 Engineering & Research Associates, Inc. Electro mechanical tubing sealer
US4496819A (en) * 1981-12-28 1985-01-29 Engineering And Research Associates, Inc. Jaws for an electro-mechanical tubing sealer
US4490598A (en) * 1982-09-30 1984-12-25 Engineering & Research Associates, Inc. Blood tubing sealing unit
US4529859A (en) * 1982-09-30 1985-07-16 Engineering & Research Associates, Inc. Blood tubing sealing unit
US5349166A (en) 1991-10-31 1994-09-20 Engineering & Research Associates, Inc. RF generator for plastic tubing sealers
US20090101286A1 (en) * 2007-10-18 2009-04-23 Sumeer Tulsie P Tear seal moveable ground jaw for a tubing sealer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023038578A1 (en) * 2021-09-09 2023-03-16 Racer Technology Pte Ltd Compact tube sealer

Similar Documents

Publication Publication Date Title
US8770249B2 (en) Tear seal moveable ground jaw for a tubing sealer
JPH06234164A (en) Heat insulating means and method and device for sealing tube
US8448992B2 (en) Sterile docking device, medical fluid flow system with sterile docking device and method of using same
US4013860A (en) Hand held electro-mechanism sealer
US9440396B2 (en) Sterile connection device for making multiple connections
RU2017102574A (en) DEVICE FOR HEATING OR COOLING THE MATERIAL IN IT
US7326897B2 (en) Clip on tubing welder
US4496819A (en) Jaws for an electro-mechanical tubing sealer
CN107344291A (en) Quick safe analytical equipment that disassembles of lithium ion battery
KR102430163B1 (en) ultrasonic welding tongs
WO2017054833A1 (en) Electro mechanical blood bag and tubing sealer
CN206673039U (en) A kind of useless film collection device of lithium battery automatic dyestripping machine
EP3106112A1 (en) Treatment instrument
KR101400826B1 (en) secondary cell pouch vacuum packaging device
WO2013112106A1 (en) Placental blood extraction device
WO2018063890A1 (en) Peel open test procedure, development, and validation
US20130320249A1 (en) Donor tube sealing head with non-tension tube supports
CN204147117U (en) Solidifying pincers are cut by bipolar Wicresoft
EP1663800B1 (en) Press for removing supernatant from a flexible vessel
EP3344420B1 (en) Cordless welding apparatus
WO2020196412A1 (en) Centrifuge member and cleaning method
EP3789188A1 (en) Appartus for sealing a vacuum bag, vacuum bag, and method for sealing a vacuum bag
CN206576923U (en) A kind of multifunctional tumor stripper
EP3600474A1 (en) Cassette for a blood component collection system and manufacturing method thereof
CN105346774A (en) Sub-clamp mechanism for double-bag feeding

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15797016

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15797016

Country of ref document: EP

Kind code of ref document: A1