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81results about How to "Reduced risk of tearing" patented technology

a percutaneous nephroscope

ActiveCN103070720BLower tolerance requirementsReduce work intensitySurgical needlesTrocarRenal CalixUltimate tensile strength
A percutaneous nephroscope comprises a bridge assembly, a puncture needle, a sheath assembly and a lens assembly, wherein the bridge assembly is provided with a bridge passage and a bridge base, and the sheath assembly is provided with a sheath passage and a sheath base arranged on the end of the sheath passage. In the step of puncture, the front end of the puncture needle is inserted into and extends out of the sheath passage, and the end of the puncture needle abuts against the sheath base; when the sheath base is tightly connected with the bridge base, the sheath passage communicates with the bridge passage, and the lens assembly sequentially passes through the bridge passage and the sheath passage. The percutaneous nephroscope has the following advantages: (1) the operating procedure is simplified, the time of an operation can be shortened, the requirement on the endurance of patients is decreased, and the working intensity of doctors can be decreased; (2) particularly, unnecessary expansion which can cause the pain and tissue injuries of patients is reduced; (3) because the diameter of the sheath is small, the percutaneous nephroscope can be flexibly operated in the narrow spaces of the renal pelvis and the renal calyx, the risk of tearing kidney tissues is reduced, and moreover, the surgical cut is small and can easily heal up after the operation.
Owner:中山市环能缪特斯医疗器械科技有限公司

Flexible printed circuit board and manufacturing method thereof

The present invention provides a flexible printed circuit board and a manufacturing method thereof. The method comprises: performing windowing on a cover film according to the position of a two-sided contact bonding pad in a preset circuit pattern; performing press fit of a first conducting layer at the lower surface of the cover film; processing the first conducting layer to form a first conducting layer circuit pattern; performing press fit of insulation materials and a second conducting layer at the lower surface of the first conducting layer, wherein the upper surface of the second conducting layer is coated with the insulation materials, the insulation materials and the second conducting layer staggered with the position of the two-sided contact bonding pad; processing a blind hole punching through the insulation materials and the second conducting layer at the lower surface of the second conducting layer, and allowing the blind hole to be filled with conducting materials; processing the second conducting layer to form the second conducting layer circuit pattern; attaching a protective film to the lower surface of the second conducting layer; and performing windowing on the protective film according to the position of the two-sided contact bonding pad in the preset circuit pattern. The flexible printed circuit board is provided with a bonding pad which realizes two-sided contact and conduction through the first conducting layer so as to satisfy welding and conduction requirements and reduce the risk of the tearing of the bonding pad.
Owner:VIVO MOBILE COMM CO LTD

Intraperitoneal wound suturing device based on anvil block position feedback

The invention discloses an intraperitoneal wound suturing device based on anvil block position feedback. The intraperitoneal wound suturing device mainly comprises an extending pipe, a supporting block, an operating mechanism and a suturing mechanism. The suturing mechanism comprises an arc-shaped fixing strip connected to the interior of the bottom end of a connecting rod shell and provided withan arc-shaped sliding groove, an arc-shaped suture needle arranged in the sliding groove in a sliding manner; a push block and a pull block accounting for half of the width of the sliding groove, arranged in the sliding groove in the sliding mode and assisting the suture needle in completing the suture period; a sewing wheel arranged at the circle center of the fixing strip, a first jacking columnarranged on the sewing wheel and used for pushing the push block, a second jacking column arranged on the sewing wheel and used for pushing the pull block, a reset spring arranged on the side face ofthe push block and the side face of the pull block, and a first ramp and a second ramp are used for separating the first jacking column from the push block as well as separating the second jacking column from the pull block. During suturing, secondary injury to wounds of patients can be reduced, and the suture needle is convenient to operate and suitable for wide popularization.
Owner:高媛

Substrate structure and fabrication method thereof

The invention relates to a substrate structure and a fabrication method thereof. The fabrication method of the substrate structure comprises the following steps of providing a support substrate; forming an exposed light-sensitive material layer on the support substrate, wherein the exposed light-sensitive material layer is provided with a first bonding force region and a second bonding force region, and the bonding force of the first bonding force region and the support substrate is smaller than the bonding force of the second bonding force region and the support substrate; and forming a flexible substrate on the exposed light-sensitive material layer, removing the light-sensitive material on the first bonding force region and the flexible substrate to obtain a patterned light-sensitive material layer and a patterned flexible substrate layer so as to obtain the substrate. In the fabrication method of the substrate structure, the first bonding force region and the second bonding force region in arbitrary patterns can be obtained by exposure; and since the bonding force of the first bonding force region and the support substrate is relatively small, the light-sensitive material on the first bonding force region and the flexible substrate are removed from the support substrate, so that versatile patterns of the substrate structure is achieved.
Owner:YUNGU GUAN TECH CO LTD

Breathable elastic composite non-woven fabric and manufacturing method thereof

The invention discloses breathable elastic composite non-woven fabric which is composed of a surface layer non-woven fabric body, a middle layer elastic film and a bottom layer non-woven fabric body, the surface layer non-woven fabric body and the bottom layer non-woven fabric body are each provided with a plurality of strip-type protruding areas and a plurality of strip-type concave areas which are transversely arranged, funnel-shaped open holes are formed in the middle-layer elastic film, and strip-type breathable channels are formed between the protruding areas of the surface layer non-woven fabric body and the bottom layer non-woven fabric body, so that internal wet and hot air can permeate into the breathable channel space formed by the bottom layer non-woven fabric body and the elastic film through the bottom layer non-woven fabric body during wearing, the wet and hot air rapidly diffuses in the length direction and the height direction of the breathable channel space in the breathable channels, enters the breathable channel space formed by the elastic film and the surface layer non-woven fabric body through the holes of the elastic film, and then is discharged out of the elastic composite non-woven fabric, so that the effect of rapid heat conduction and moisture removal is achieved.
Owner:XIAMEN YANJAN NEW MATERIAL CO LTD

A small lumen anastomat and a method for using the same

ActiveCN109199499ANot easy to flip operationNot easy to operate while flipping overSurgical staplesMedicineBlood arterial
The invention discloses a small lumen anastomat and a method for using the same, in order to solve the technical problem of arterial blood vessel and human body small lumen anastomosis. The structurecomprises a fixed sleeve, a movable sleeve and a locking buckle. One end of the fixed sleeve is provided with a cylinder shoulder. The other end of the fixed sleeve is provided with an anastomosis connection end. The movable sleeve sleeves the cylinder wall of the fixed sleeve and provided with a hanging needle, and the movable sleeve has the freedom of movement sliding along the length directionof the fixed sleeve. When the length of the movable sleeve meets the requirement that one end close to the cylinder shoulder is in contact with the cylinder shoulder, the anastomotic connection end isexposed relative to the end face of the other end of the movable sleeve. The locking buckle is made of elastic material and has an annular shape and is provided with a locking part. The inner hole shape of the locking buckle is matched with the shape of the anastomotic connection end. The anastomat is characterized in that the cylinder wall of the fixed sleeve is provided with at least one recessin the direction of the inner cavity, and the outer shape of the cylinder cavity of the movable sleeve is adapted to the outer shape of the fixed sleeve. The anastomat can improve the success rate ofthe operation and make the operation more safe.
Owner:盐木医疗科技(北京)有限公司

Rigid-flex board and manufacturing method thereof

The invention relates to the technical field of PCBs, and discloses a rigid-flex board and a manufacturing method thereof. The rigid-flex board comprises a flexible board, a first bonding sheet and a first rigid board which are laminated in sequence, wherein the flexible board comprises a flexible area and a rigid-flex combination area; the flexible area comprises an original flexible area and an extended flexible area; the rigid-flex combination area comprises first combination areas and second combination areas, the first combination areas are connected to the two sides of the flexible area in the width direction, and the second combination areas are located on the two sides of the extended flexible area in the length direction, separated from the extended flexible area and connected with the first combination areas on the same side; the extended flexible area is separated from the first bonding sheet through an isolating layer, and the isolating layer can be separated from the extended flexible area during bending; and the first rigid board and the first bonding sheet are respectively provided with a windowing area which is consistent with the original flexible area in position and size. On the basis of a conventional original flexible area, the extended flexible area is added, the overall width of the flexible area is enlarged, and the one-way bending radius of the flexible area is increased.
Owner:DONGGUAN SHENGYI ELECTRONICS

Concrete-filled steel tube power transmission tower intersecting joint with prestressed steel wires and manufacturing method for concrete-filled steel tube power transmission tower intersecting joint

The invention provides a concrete-filled steel tube power transmission tower intersecting joint with prestressed steel wires and a manufacturing method for the concrete-filled steel tube power transmission tower intersecting joint. The intersecting joint comprises a flange, a main pipe and two inclined pipes; the inclined pipes are composed of a plurality of sections; one of the inclined pipes is arranged at an acute angle with the main pipe, and the other inclined pipe is arranged at an obtuse angle with the main pipe; and both the first sections of the two inclined pipes are connected with the main pipe; the first section is connected with a secondary section through a connecting piece, wherein the second section is connected with the first section; the prestressed steel wires are arranged in the inclined pipes; a stiffening piece is arranged in the main pipe; first ends of the prestressed steel wires are connected with the stiffening piece, and second ends of the prestressed steel wires are connected with the connecting piece. According to the concrete-filled steel tube power transmission tower intersecting joint with the prestressed steel wires, the prestressed steel wires are fixed through the arranged stiffening piece and bears tensile force and bending moment of the inclined pipes, the risk of tearing of joint intersecting line welding seams is reduced, therefore, the tensile force and the bending moment applied to the welding seams when the inclined pipes are in tension are reduced by the intersecting joint, and the risk that the welding seams are cracked is reduced.
Owner:CHINA ELECTRIC POWER RES INST +2
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