Methods of making bioactive collagen wound care dressings

    公开(公告)号:US10744039B2

    公开(公告)日:2020-08-18

    申请号:US15790851

    申请日:2017-10-23

    Applicant: Ension, Inc.

    Abstract: A method of preparing a crosslinked, collagen-based wound care dressing is provided, comprising: (a) immersing a sample of fibrous and/or non-fibrous collagen in a buffered acidic, aqueous solution comprising an alcohol; (b) contacting the collagen in solution with a catalytic component comprising 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride for a time at least sufficient to effect reaction between amino and carboxyl groups present on the collagen and to yield crosslinked collagen that is resistant to pronase degradation; and (c) drying the crosslinked collagen to yield a porous, crosslinked collagen article wherein the porous, crosslinked collagen article demonstrates a pore size of 10-500 microns. Also provided are bioactive collagen medical scaffolds for hernia repair prosthetics and surgical incision closure members, prepared using the method above.

    Methods of making bioactive collagen wound care dressings

    公开(公告)号:US11622892B2

    公开(公告)日:2023-04-11

    申请号:US16995771

    申请日:2020-08-17

    Applicant: Ension, Inc.

    Abstract: A method of preparing a crosslinked, collagen-based wound care dressing is provided, comprising: (a) immersing a sample of fibrous and/or non-fibrous collagen in a buffered acidic, aqueous solution comprising an alcohol; (b) contacting the collagen in solution with a catalytic component comprising 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride for a time at least sufficient to effect reaction between amino and carboxyl groups present on the collagen and to yield crosslinked collagen that is resistant to pronase degradation; and (c) drying the crosslinked collagen to yield a porous, crosslinked collagen article wherein the porous, crosslinked collagen article demonstrates a pore size of 10-500 microns. Also provided are bioactive collagen medical scaffolds for hernia repair prosthetics and surgical incision closure members, prepared using the method above.

    Method and apparatus for coupling left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions

    公开(公告)号:US10512465B2

    公开(公告)日:2019-12-24

    申请号:US15450327

    申请日:2017-03-06

    Applicant: Ension, Inc.

    Abstract: An apparatus for stimulation of collateral development in ischemic cardiac regions comprises a mechanism for fluid coupling of the left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes a control of the diastolic/systolic pressure in the venous system to be within about 20-50 mmHg. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes inserting a transmyocardial conduit into the left ventricle and a tri-directional coupler attached to the anterior interventricular vein. An associated method for stimulation of collateral development in ischemic cardiac regions via the fluid coupling of the left ventricle of the heart to the anterior interventricular vein is disclosed.

    Method and apparatus for coupling left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions
    7.
    发明授权
    Method and apparatus for coupling left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions 有权
    用于将心脏左心室与前室间静脉联合以刺激缺血区域的侧支发育的方法和装置

    公开(公告)号:US09585665B2

    公开(公告)日:2017-03-07

    申请号:US14452403

    申请日:2014-08-05

    Applicant: Ension, Inc.

    Abstract: A method for stimulation of collateral development in ischemic cardiac regions comprises the fluid coupling of the left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes a control of the diastolic/systolic pressure in the venous system to be within about 20-50 mmHg. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes inserting a transmyocardial conduit into the left ventricle and a tri-directional coupler attached to the anterior interventricular vein. An associated apparatus for stimulation of collateral development in ischemic cardiac regions via the fluid coupling of the left ventricle of the heart to the anterior interventricular vein is disclosed.

    Abstract translation: 用于刺激缺血性心脏区域中侧支发育的方法包括心脏左心室与前室间静脉的流体耦合以刺激缺血区域中的旁路发育。 心脏左心室与前室间静脉的流体耦合包括将静脉系统的舒张/收缩压控制在约20-50mmHg内。 心脏左心室与前室间静脉的流体耦合包括将心肌导管插入左心室和连接到前室间静脉的三向耦合器。 公开了一种用于通过心脏左心室与前室间静脉的流体耦合来刺激缺血性心脏区域中侧支发育的相关装置。

    METHOD AND APPARATUS FOR COUPLING LEFT VENTRICLE OF THE HEART TO THE ANTERIOR INTERVENTRICULAR VEIN TO STIMULATE COLLATERAL DEVELOPMENT IN ISCHEMIC REGIONS
    8.
    发明申请
    METHOD AND APPARATUS FOR COUPLING LEFT VENTRICLE OF THE HEART TO THE ANTERIOR INTERVENTRICULAR VEIN TO STIMULATE COLLATERAL DEVELOPMENT IN ISCHEMIC REGIONS 有权
    用于联合心脏左心室的方法和装置,用于刺激异位区域的结肠发育

    公开(公告)号:US20150038999A1

    公开(公告)日:2015-02-05

    申请号:US14452403

    申请日:2014-08-05

    Applicant: Ension, Inc.

    Abstract: A method for stimulation of collateral development in ischemic cardiac regions comprises the fluid coupling of the left ventricle of the heart to the anterior interventricular vein to stimulate collateral development in ischemic regions. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes a control of the diastolic/systolic pressure in the venous system to be within about 20-50 mmHg. The fluid coupling of the left ventricle of the heart to the anterior interventricular vein includes inserting a transmyocardial conduit into the left ventricle and a tri-directional coupler attached to the anterior interventricular vein. An associated apparatus for stimulation of collateral development in ischemic cardiac regions via the fluid coupling of the left ventricle of the heart to the anterior interventricular vein is disclosed.

    Abstract translation: 用于刺激缺血性心脏区域中侧支发育的方法包括心脏左心室与前室间静脉的流体耦合以刺激缺血区域中的旁路发育。 心脏左心室与前室间静脉的流体耦合包括将静脉系统的舒张/收缩压控制在约20-50mmHg内。 心脏左心室与前室间静脉的流体耦合包括将心肌导管插入左心室和连接到前室间静脉的三向耦合器。 公开了一种用于通过心脏左心室与前室间静脉的流体耦合来刺激缺血性心脏区域中侧支发育的相关装置。

    Flow Based Biological Testing Platform and Noncircular Fluid Test Loops Therefor

    公开(公告)号:US20220196532A1

    公开(公告)日:2022-06-23

    申请号:US17451315

    申请日:2021-10-18

    Applicant: Ension, Inc.

    Abstract: A flow-based biological testing platform comprises a stationary base; a reciprocating base mounted on the stationary base, configured for reciprocating motion on the base; and at least one flexible tubular test loop coupled to both the stationary and the reciprocating base, wherein each test loop is configured to be selectively filled with a biologic fluid, and wherein each test loop includes at least one check valve mounted within the test loop allowing flow in a single flow direction within the test loop, and a fluid loading and removal system attached to the stationary base allowing fluid to be supplied to and withdrawn from the flexible tubular test loop; wherein reciprocation of the reciprocating base induces fluid flow in a single direction within each flexible test loop.

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