摘要:
Disclosed herein are vaso-occlusive devices for forming occluding the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive devices comprising at least one polymer structure and methods of making and using these devices.
摘要:
Disclosed herein are vaso-occlusive devices for forming occluding the vasculature of a patient. More particularly, disclosed herein are vaso-occlusive devices comprising at least one polymer structure and methods of making and using these devices.
摘要:
A device for delivering an occlusive element includes an elongate pusher member having a lumen. A locking member is disposed within the lumen of the elongate pusher member. A moveable elongate releasing member is disposed within the lumen of the elongate pusher member. A filament is secured to the distal end of the elongate releasing member. The occlusive member is locked to the elongate releasing member when the filament passes through a securing member on the occlusive member and is pinched or wedged between the locking member and the elongate releasing member. The occlusive element is in an unlocked state when the elongate releasing member is retracted proximally relative to the elongate pusher member. The filament, along with the elongate releasing member, are retracted proximally until the filament is detached or uncoupled from the securing member of the occlusive member.
摘要:
A device for delivering an occlusive element such as a vaso-occlusive coil includes an elongate sheath. An elongate releasing member having a distal tip or end is moveable within a lumen of the elongate sheath. A filament is provided having first and second ends with each end being fixed relative to the elongate sheath to form a loop segment. The loop segment of the filament is passed through a securing member located on the proximal end of the occlusive element. The distal tip of the elongate releasing member is inserted into the portion of the loop segment that passes through the securing member to lock the occlusive element relative to the elongate sheath. The occlusive element is released by pulling the elongate releasing member proximally to retract the distal tip from the loop segment of the filament.
摘要:
A device for delivering an occlusive element includes an elongate pusher member having a lumen extending between distal and proximal ends. An elongate releasing member is slideably disposed within the lumen of the elongate pusher member. A retaining member is disposed on the distal end of the elongate pusher member and includes a finger portion having an aperture sized to receive the distal end of the elongate releasing member. An occlusive element such as a coil is provided and includes a securing member positioned at a proximal end thereof. The securing member is releasably secured to the finger portion of the retaining member. The securing member is secured to the finger portion when the elongate releasing member is disposed in the aperture of the finger portion and unsecured when the elongate releasing member is retracted proximally from the aperture of the finger portion.
摘要:
A device for delivering an occlusive element includes an elongate sheath. A distal blocking member is located at the distal end of the elongate sheath and includes an aperture therein. An elongate releasing member is disposed within a lumen of the elongate sheath. The elongate releasing member includes a proximal end and a distal end with the distal end terminating in at least one retaining member. The device includes an occlusive element such as, for example, a vaso-occlusive coil that has a securing member located at a proximal end thereof. The securing member of the occlusive element passes through the aperture of the distal blocking member and the at least one retaining member is releasably secured to the securing member.
摘要:
A device for delivering an occlusive element includes an elongate pusher member having a lumen extending between distal and proximal ends. An elongate releasing member is slideably disposed within the lumen of the elongate pusher member. A retaining member is disposed on the distal end of the elongate pusher member and includes a finger portion having an aperture sized to receive the distal end of the elongate releasing member. An occlusive element such as a coil is provided and includes a securing member positioned at a proximal end thereof. The securing member is releasably secured to the finger portion of the retaining member. The securing member is secured to the finger portion when the elongate releasing member is disposed in the aperture of the finger portion and unsecured when the elongate releasing member is retracted proximally from the aperture of the finger portion.
摘要:
A device for delivering an occlusive element includes an elongate pusher member having a lumen. A locking member is disposed within the lumen of the elongate pusher member. A moveable elongate releasing member is disposed within the lumen of the elongate pusher member. A filament is secured to the distal end of the elongate releasing member. The occlusive member is locked to the elongate releasing member when the filament passes through a securing member on the occlusive member and is pinched or wedged between the locking member and the elongate releasing member. The occlusive element is in an unlocked state when the elongate releasing member is retracted proximally relative to the elongate pusher member. The filament, along with the elongate releasing member, are retracted proximally until the filament is detached or uncoupled from the securing member of the occlusive member.
摘要:
The invention relates to a specific modified oligonucleotide complementary to a section of the human Ha-ras gene and mRNA, and its use to specifically regulate, modulate or inhibit expression of the HA-ras gene, and its use as a pharmaceutical for the treatment of conditions arising from the abnormal expression of the Ha-Ras gene, in particular in combination with chemotherapy and radiotherapy. The modified oligodeoxynucleotide according to the invention has the sequence 5′-TxAxTxTxCxCxGxTxCxAxT-3′-O—PO2—O—R (SEQ ID NO:1), wherein X is an internucleotide linkage of type o or s, with the proviso that x is an s linkage at least 4 times and at most 9 times, and o means a phosphodiester internucleoside linkage, s means a phosphorothioate internucleoside linkage, R means a C8-C21 alkyl group, —(CH2—CH2O)n-(CH2)m—CH3, or —CH2—CH(OH)CH2O—(CH2)q—CH3 wherein n is an integer from 1 to 6, m is an integer from 0 to 20 and q is an integer from 7 to 20 and A is 2′-deoxyadenosine, G is 2′-deoxyguanosine, C is 2′-deoxycytidine and T is thymidine.
摘要:
The present invention relates to gene transfer and gene therapy technology. More specifically, the invention provides compositions and methods for targeted virus delivery. The method utilizes a method of mixing the virus, which may be a recombinant virus which will express a protein of interest or a nucleic acid of interest, with a cell-targeting ligand, e.g., transferrin. The virus and ligand are mixed without crosslinkers or agents which would covalently bond the virus and ligand. This simple mixing causes less inactivation than chemically linking the ligand to the virus and therefore results in a more active therapeutic composition than obtained by methods which utilize crosslinking agents.