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78 results about "Foramen" patented technology

Minimally invasive apparatus for implanting a sacral stimulation lead

Methods and apparatus for implanting a stimulation lead in a patient's sacrum to deliver neurostimulation therapy that can reduce patient surgical complications, reduce patient recovery time, and reduce healthcare costs. A surgical instrumentation kit for minimally invasive implantation of a sacral stimulation lead through a foramen of the sacrum in a patient to electrically stimulate a sacral nerve comprises a needle and a dilator and optionally includes a guide wire. The needle is adapted to be inserted posterior to the sacrum through an entry point and guided into a foramen along an insertion path to a desired location. In one variation, a guide wire is inserted through a needle lumen, and the needle is withdrawn. The insertion path is dilated with a dilator inserted over the needle or over the guide wire to a diameter sufficient for inserting a stimulation lead, and the needle or guide wire is removed from the insertion path. The dilator optionally includes a dilator body and a dilator sheath fitted over the dilator body. The stimulation lead is inserted to the desired location through the dilator body lumen or the dilator sheath lumen after removal of the dilator body, and the dilator sheath or body is removed from the insertion path. If the clinician desires to separately anchor the stimulation lead, an incision is created through the entry point from an epidermis to a fascia layer, and the stimulation lead is anchored to the fascia layer. The stimulation lead can be connected to the neurostimulator to delivery therapies to treat pelvic floor disorders such as urinary control disorders, fecal control disorders, sexual dysfunction, and pelvic pain.
Owner:MEDTRONIC INC +1

Minimally invasive apparatus for implanting a sacral stimulation lead

Methods and apparatus for implanting a stimulation lead in a patient's sacrum to deliver neurostimulation therapy that can reduce patient surgical complications, reduce patient recovery time, and reduce healthcare costs. A surgical instrumentation kit for minimally invasive implantation of a sacral stimulation lead through a foramen of the sacrum in a patient to electrically stimulate a sacral nerve comprises a needle and a dilator and optionally includes a guide wire. The needle is adapted to be inserted posterior to the sacrum through an entry point and guided into a foramen along an insertion path to a desired location. In one variation, a guide wire is inserted through a needle lumen, and the needle is withdrawn. The insertion path is dilated with a dilator inserted over the needle or over the guide wire to a diameter sufficient for inserting a stimulation lead, and the needle or guide wire is removed from the insertion path. The dilator optionally includes a dilator body and a dilator sheath fitted over the dilator body. The stimulation lead is inserted to the desired location through the dilator body lumen or the dilator sheath lumen after removal of the dilator body, and the dilator sheath or body is removed from the insertion path. If the clinician desires to separately anchor the stimulation lead, an incision is created through the entry point from an epidermis to a fascia layer, and the stimulation lead is anchored to the fascia layer. The stimulation lead can be connected to the neurostimulator to delivery therapies to treat pelvic floor disorders such as urinary control disorders, fecal control disorders, sexual dysfunction, and pelvic pain.
Owner:MEDTRONIC INC

Macroporous reticular polyvinyl alcohol foam and preparation thereof

The invention provides a method for preparing a macroreticular polyvinyl alcohol foam carrier, which comprises the steps: polyvinyl alcohol, limestone and water are mixed and stirred to lead the polyvinyl alcohol to be fully and evenly dissolved; the mixture is added with dilute hydrochloric acid for acidification and is frothed to have foramen; by adopting the circulation of freezing-unfreezing, and refreezing-unfreezing again, macroreticular polyvinyl alcohol gel foam is formed; then, the polyvinyl alcohol gel foam is cut into pieces and is dipped into the dilute hydrochloric acid with the mass concentration of 0.5-1% until no bubble is generated; the polyvinyl alcohol is caused to form more stable cross-linked structure by chemical crosslinking reaction; after that, the polyvinyl alcohol is soaked in water to be washed to be neutrality, so that the white macroreticular polyvinyl alcohol foam carrier is obtained. The macroreticular polyvinyl alcohol foam carrier prepared by the invention has stable macroreticular structure, takes on good hydrophilicity, physical and chemical durability as well as biological degradability resistance, is applicable to immobilized enzyme and microorganism to form a bioreactor with multiple bed types, and can be used in the fields of modern biological engineering such as sewage disposal, etc.
Owner:LANZHOU UNIVERSITY

Filter paper sheet diaphragmatic foramen suspension spore ejection method

The invention discloses a filter paper separated hole suspended spore ejection method, which firstly prepares a sterile potato culture medium slab with the thickness of 0.5cm and processes a sterile filter paper which is provided with a hole with the diameter of Phi 0.5 to 2 cm; then a culture dish cover is removed from a super clean workbench, and the sterile filter paper with the hole is arranged on a lower dish which is provided with the culture medium slab; a large-scale fungal sporophore block which is collected at the field is arranged on the filter paper hole of the sterile filter paper with the hole for still placement for 20 to 60min, then the filter paper and the sporophore are removed, the culture dish cover is covered, and a constant temperature culture is carried out after transferring the fungal sporophore block into a culture box at 22 - 26 DEG C; finally, the mycelia are selected after spore germination and transferred into the slope of a test tube for continual culture till the tube is full; the configuration identification is further carried out, so as to obtain a wild large-scale fungal pure culture. The invention has the advantages of reducing the opportunity of hybrid bacteria pollution, improving the success rate of the obtainment of large-scale fungal pure culture and having simplified operation.
Owner:JIANGXI AGRICULTURAL UNIVERSITY

Individual customized bone-cutting shape-righting guide plate and fabrication method thereof

The invention discloses an individual customized bone-cutting shape-righting guide plate. The bone-cutting shape-righting guide plate is characterized in that the working face of the bone-cutting shape-righting guide plate is attached to the bone surface, or a skeleton and the part in contact with the skeleton can be embedded into the guide plate, the outer surface of the guide plate is determined by the thickness required by all positions of the surface in contact with a target bone, and all the sides of the guide plate are controlled through arcs of apophysis marks and are made to be aligned with the apophysis marks. A fabrication method includes the steps of modeling the target bone through a reverse engineering technology to obtain a digital model of the skeleton, and measuring the position for bone cutting and shape righting, the bone cutting angle, and the plane where the angle is located; designing characteristics of all sides, bone cutting grooves, through holes, foramen lacerums and rounded angles of the guide plate in sequence through the bone cutting parameters, and performing 3d printing finally. The bone-cutting shape-righting guide plate has the advantages of being high in accuracy, simple and practical, rapid in mold forming and wide in application range.
Owner:佛山市三水区人民医院

Three-dimensional foramen intervertebral lens

The invention discloses a three-dimensional foramen intervertebral lens which is simple in structure. A surgical operation position can be accurately located. An operator can carry out learning and operation conveniently. The three-dimensional foramen intervertebral lens comprises a lens pipe body, a camera shooting component, imaging channels, a water inlet pipe, a water outlet pipe and a lighting pipe. An operation channel, the imaging channels, a water inlet channel and a water outlet channel which are independent are arranged on the lens pipe body, and left end openings of the channels are formed in the left end of the lens pipe body. The middle portions of the imaging channels are communicated with the lighting pipe. Another opening of the water inlet channel is communicated with a water inlet pipe. Another opening of the water outlet channel is communicated with the water outlet pipe. The water inlet pipe, the water outlet pipe and the lighting pipe are fixedly connected with the side wall of the lens pipe body. The camera shooting component and the imaging channels further comprise two three-dimensional endoscopes and two optical fibers. The two three-dimensional endoscopes are fixedly arranged at the left end openings of the two imaging channels respectively. The two optical fibers are arranged in the two imaging channels respectively. One end of each optical fiber is connected with a corresponding three-dimensional endoscope. The other ends of the optical fibers extend out of right side openings of the imaging channels.
Owner:THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

3D printing intervertebrale foramen mirror targeting puncturing percutaneous surgery guide plate and puncturing method thereof

ActiveCN104958099AEasy to fixImprove stabilitySurgical needlesTrocarForamenIntraoperative Injury
The invention relates to a 3D printing intervertebrale foramen mirror targeting puncturing percutaneous surgery guide plate, and further provides a puncturing method by adopting the surgery guide plate. The 3D printing intervertebrale foramen mirror targeting puncturing percutaneous surgery guide plate comprises a base and a guide plate body; the guide plate body is supported by the base and positioned on a human body, the guide plate body is internally formed by a positioning segment connected with the base and a puncturing guide segment used for puncturing and positioning, a positioning groove formed in a guide plate positioning hole is exactly matched with a positioning protrusion of the base in an embedded mode, and then puncturing is carried out along an oblique guide channel of a guide pipe arranged at the front end of the puncturing guide segment. The 3D printing intervertebrale foramen mirror targeting puncturing percutaneous surgery guide plate and the puncturing method have the advantages that a puncturing route is decided by the 3D printing percutaneous surgery guide plate before surgery is carried out, the puncturing depth is measured, nerves and vessels are prevented from being damaged in the surgery, puncturing is carried out along guide holes in the surgery, the surgery time can be obviously shortened, the fluoroscopy radiant quantity is reduced, preconditions are provided for hole expanding, pipe arranging and under mirror operating in follow-up periods, and meanwhile the damage probabilities of the nerves and the vessels are reduced.
Owner:江苏舟可医疗器械科技有限公司
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