33 results about "Indwelling Device" patented technology

Provided is an in-vivo indwelling tool having a structure (2) in which a coil (10) with a longitudinal axis direction (x) is curved and a drug (50) is disposed on the surface, wherein the structure (2) has a first part (3) that is formed in a first three-dimensional shape and in which a portion of the coil (10) is curved, and a second part (4) that is formed in a second three-dimensional shape and in which a part of the coil (10) different from the first part (3) is curved in the longitudinal axis direction (x), and either the drug amount per unit length of the coil (10) in the second part (4) is less than the drug amount per unit length of the coil (10) in the first part (3), or the drug (50) is not disposed in the second part (4).

This invention provides a precise control structure and applicator for the indwelling device in a continuous glucose monitoring (CGM) meter. By incorporating a clock structure consisting of an unlocking control track and a control block, different areas on the unlocking control track apply varying forces to the control block. These forces switch precisely upon completion of the puncture, allowing the clock structure to correlate with the puncture process. This enables the device to sense the puncture and promptly unlock the indwelling device after the procedure. This mechanical structure offers precise control and high integration, making it a glucose monitoring product that provides accurate control within a relatively small size.

The invention relates to the technical field of medical instruments, in particular to a portable visual nasal gastrointestinal nutrition tube indwelling device which comprises an operation handle, an endoscope assembly, a guide wire and a shaping mechanism, and the endoscope assembly is connected to the operation handle, can be controlled by the operation handle and is used for checking conditions in the body of a patient; the endoscope assembly is sleeved with the nasal gastrointestinal nutrition tube when the nasal gastrointestinal nutrition tube is installed. The guide wire is inserted into the endoscope assembly and is used for supporting the endoscope assembly; the shaping mechanism is configured to enable the section shape of the nasal gastrointestinal nutrition tube with the curvature larger than a preset value to be recovered to be round and can also fix the shape of the nasal gastrointestinal nutrition tube with the curvature larger than the preset value. Therefore, on one hand, it can be guaranteed that the section of the nasal gastrointestinal nutrition tube is round and the blocking risk is avoided when the nasal gastrointestinal nutrition tube conveys nutrient solution or medicine, and on the other hand, elastic reset force generated at the bent position of the nasal gastrointestinal nutrition tube can be offset and the nasal gastrointestinal nutrition tube is prevented from continuously jacking mucous membranes and tissues in the human body.

The utility model relates to the technical field of accessory auxiliary installation equipment, and discloses an ear hole indwelling device which comprises a sleeve, an elastic piece, an isolation piece and a limiting ring. The sleeve is inserted into the ear hole, the sleeve is sleeved with the isolation piece, the isolation piece abuts against the ear hole, and an arc-shaped face is arranged on the side, close to the ear hole, of the isolation piece. An elastic piece is arranged on the side, away from the ear hole, of the isolation piece, a limiting ring is arranged on the side, away from the isolation piece, of the elastic piece, the limiting ring is connected with the sleeve, and the limiting ring extrudes the isolation piece through the elastic piece so that the edge of the arc-shaped face can be extruded around the ear hole. Automatic healing of the ear hole can be avoided through the sleeve, the isolation piece can be pressed on the end face of the ear hole under the action of the limiting ring and the elastic piece, the contact area between the isolation piece and the ear hole can be reduced through the arc-shaped face arranged on the isolation piece, and therefore impurities are effectively prevented from entering the ear hole to cause infection, and the technical problem that the ear hole is prone to infection is solved. The technical effects that the ear hole is sealed, and infection is not prone to occurring are achieved.

The invention relates to a medical connector assembly and a venous indwelling device, and belongs to the technical field of medical instruments. Comprising a first chamber and a second chamber which are not communicated with each other; the connecting end is screwed to the input end of the joint main body; the connecting end is provided with at least one input pipeline A and at least one input pipeline B; when the input pipeline B is located at a first axial position relative to the connecting end, the input pipeline A and the input pipeline B are in fluid communication with the first cavity; and when the input pipeline B is located at a second axial position relative to the connecting end, the input pipeline B is switched to be in fluid communication with the second cavity. The risk that the tube is disengaged when the needle head is detached is avoided, meanwhile, the hidden danger of occupational exposure of medical staff caused by the exposed needle head is also eliminated, and the safety and efficiency of clinical nursing are greatly improved.

To provide an in vivo indwelling device capable of observing a biological lumen and irradiating the biological lumen with light.SOLUTION: An in vivo indwelling device 1 comprises a tube 10. The tube 10 has, in the extending direction of the tube 10, a first section 21, a second section 22, and a third section 23 located between the first section 21 and the second section 22. In the third section 23, the tube 10 has a portion with higher light transmittance than the tube 10 in at least one of the first section 21 and the second section 22.SELECTED DRAWING: Figure 2

The utility model relates to the technical field of medical instruments, and discloses a postoperative indwelling drainage tube fixing and drainage tube peripheral leakage liquid collecting device which comprises a fixing bag, a collecting bag, a ribbon panel and a connecting piece, the fixing bag is connected with the collecting bag through the connecting piece, the ribbon panel is installed on the fixing bag, and the collecting bag is connected with the ribbon panel through the connecting piece. The fixing bag is communicated with the collecting bag, a liquid outlet pipe is arranged on one side of the collecting bag, the liquid outlet pipe is communicated with the collecting bag, a sealing plug is arranged at an end opening of the liquid outlet pipe, a sealing cover is installed at the end of the sealing plug, and the sealing cover is connected with the outer wall of the liquid outlet pipe through a connecting rope. If seepage occurs in the drainage process, the leaked liquid flows into the collecting bag through the fixing bag, collection of the leaked liquid around the drainage tube is achieved, wound infection is avoided, postoperative wound healing is facilitated, if the leaked liquid collected in the collecting bag is large in amount, the sealing plug is taken out from the end opening of the liquid outlet tube, and the sealing plug is taken out from the end opening of the liquid outlet tube. And the liquid can be discharged through the liquid outlet pipe.

A catheter clip-on device applies surface acoustic waves to a catheter for preventing biofilms on the catheter surfaces. Multiple frequencies are generated by at least two PZT elements, coupled to a catheter or in-dwelling device. The relative motion of bacteria results in bacteria quorum sensing, and disrupts the bacteria attachment process.

This utility model discloses an integrated formwork structure for a short column shear groove retention device in steel structure foundations. It includes a template assembly and a reserved mold assembly. The template assembly includes several templates and several template fixing frames. The reserved mold assembly includes a mold support and an airbag mold. The mold support includes two first fixing seats. A first sleeve is fixedly installed on the first fixing seat. A lifting rod passes through the first sleeve. A second sleeve is fixedly installed at the top of the lifting rod. A telescopic rod passes through the second sleeve. A first mounting rod is fixedly installed at the bottom of the telescopic rod. A first mold fixing plate is slidably installed on the first mounting rod. A mold fixing frame is fixedly installed at the bottom of the first mounting rod. A second mold fixing plate is fixedly installed at one end of the mold fixing frame, and a third mold fixing plate is slidably installed at the other end. This utility model can improve the positioning accuracy of the reserved mold, avoid displacement and floating of the reserved mold during concrete pouring and vibration, and the mold is easy to dismantle and can be reused.

The invention relates to the technical field of medical apparatus and instruments, and discloses a puncture indwelling device suitable for an Ommaya sac, which comprises a puncture needle body and a fixing assembly, the fixing assembly comprises a base. The base comprises a shell, an outlet formed in the bottom of the shell and a puncture diaphragm arranged above the shell. The inner side of the shell is an arc-shaped curved surface matched with the outer surface of the Omaya bag, a guide pipe is arranged at the bottom of the base, and the two ends of the guide pipe are connected with the Omaya bag and the outlet respectively; the puncture needle body comprises a needle tip, a needle tube, a needle wing and an extension tube which are connected with one another, the needle tip is inclined, an opening is formed in the side face of the needle tube, and the length of the needle tube is 2-3 cm. An annular rib is arranged on the inner side of the shell, and a medical silicone pressure-sensitive adhesive layer is arranged on the outer side of the annular rib. One end of the extension tube far away from the needle wing is provided with a liquid injection drainage joint. By means of the device, repeated puncture of a patient with the Ommaya bag can be avoided every day, the medical workload and scalp stimulation of a child patient are reduced, the infection risk is reduced, and needle head disengagement and ectopic and cerebrospinal fluid leakage are prevented.

The inventive concept relates to in-situ surface treatment systems and methods to actively and continuously supply negative charges to the surface of indwelling endovascular devices to maintain a non-thrombogenic surface without batteries or electronics. The in-situ surface treatment includes forming a piezoelectric-dielectrophoretic material, integrating the piezoelectric-dielectrophoretic material with the endovascular device, and employing arterial pulsation.

In order to continuously and smoothly leave a plurality of clamps, a clamp leaving device (100) includes: an insertion portion (4); a power transmission member (5); a hollow member formed with a through passage; an arm member including a first arm (21) and a second arm (22) inserted into the through passage in a manner of protruding from a distal end of the hollow member, the arm member being connected with the power transmission member and configured to be able to switch between an open state and a closed state according to the advance and retreat of the power transmission member; and an adjustment mechanism (251, 252, 361, 362) that, in the open state, configures the first arm and the second arm to have equal protruding lengths in an axis direction in which the first arm and the second arm protrude from the hollow member, and, in the closed state, configures the first arm and the second arm to have different protruding lengths in the axis direction in which the first arm and the second arm protrude from the hollow member.

The present application relates to a kind of multifunctional infusion device for surgery and its control method, including support assembly, multiple infusion channels, multiple temperature control components, multiple flow control components and controller;The top of multiple infusion channels is respectively connected with multiple injection liquid bags hung on support assembly, and the bottom of multiple infusion channels is connected with intravenous indwelling device in patient body through connecting assembly;Controller is set in support assembly, and multiple temperature control components are respectively set on multiple infusion channels, and multiple temperature control components are connected with controller through temperature control module;Multiple flow control components are respectively set on multiple infusion channels, and multiple flow control components are connected with controller through flow rate control module, temperature control module is connected with flow rate control module, and control process is as follows: select mode-exhaust infusion-flow control component and temperature control component real-time monitoring infusion pipeline;Therefore, the collaborative control of infusion, temperature control and flow control is realized, and the safety and efficiency of surgical infusion are significantly improved.

The present invention provides a urethral indwelling device that can be stably placed in a predetermined position within the urethra due to its simple structure. [Solution] The urethral indwelling device 1, which is placed inside the urethra, comprises a prostatic loop portion 10 located at the tip and placed in the prostatic urethra, a bulbous urethral loop portion 20 located at the proximal end and placed in the bulbous urethra, and a loop connecting linear portion 30 that connects the prostatic loop portion 10 and the bulbous urethral loop portion 20. The prostatic loop portion 10, the bulbous urethral loop portion 20, and the loop connecting linear portion 30 are composed of a superelastic alloy wire 5 and a flexible covering tube 6 that covers the superelastic alloy wire 5.

The invention provides a feeder and a ligation device. A feeder to which a retention device that can be retained in a subject is attached is provided with: a connector that is detachably connected to the retention device; a power transmission member connected to the connector and configured to move the connector; and an auxiliary member disposed at a position where the auxiliary member comes into contact with the connector when the power transmission member is pulled. The auxiliary member makes contact with the connector to deform the connector so as to release the connection between the connector and the remaining device, and after the connection is released, an opening through which the connector can pass is formed due to the fact that the power transmission member is further pulled.

The utility model relates to the technical field of medical instruments, in particular to a novel sustained-release drug delivery indwelling device for treating bladder cancer, which comprises a drug delivery indwelling main body, a controller is arranged on the right side of the top of the drug delivery indwelling main body, a groove is arranged on the left side of the top of the drug delivery indwelling main body, and a drug pushing assembly is arranged in an inner cavity of the groove. And the medicine pushing assembly comprises a motor, the motor is fixedly connected with one end of an inner cavity of the groove, a screw rod is arranged at the output end of the motor, the surface of the screw rod is in threaded connection with a thread sleeve, and the surface of the thread sleeve is fixedly sleeved with a pushing plate. Medicine is firstly stored in the container, then the container is fixed to the medicine administration indwelling body through the fixing assembly, at the moment, the output end of the container is fixed to the medicine administration position of a patient, and when medicine needs to be sprayed at regular time, the motor is fixed to run through the controller, the motor drives the screw to rotate, and the screw drives the threaded sleeve to move; and the push plate is driven to move through the threaded sleeve.

A treatment device includes an indwelling device including a treatment portion, and a tubular member including a proximal-end opening and in which a proximal-end portion of the treatment portion is disposed. The treatment device further includes an actuator including a connector releasably connected to a proximal-end portion of the treatment portion, and a power transmission member connected to the connector for moving the connector. The treatment portion can be fixed with respect to the tubular member when the power transmission member is retracted such that connector pulls the proximal-end portion of the treatment portion in a proximal direction to a predetermined position. The treatment device also includes a regulation portion for regulating a displacement of the connector in a direction separating from a longitudinal axis of the tubular member in the state in which the connector pulls the proximal-end portion towards the predetermined position.

The tympanic membrane breather pipe assembly comprises a tympanic membrane breather pipe imbedding device and a tympanic membrane breather pipe, the tympanic membrane breather pipe imbedding device comprises an imbedding pipe, a pipe imbedding device and a puncture needle, the imbedding pipe is of a hollow structure, and the imbedding pipe comprises a first end and a second end which are oppositely arranged; the tube indwelling device comprises a mounting seat and a needle column which are connected with each other, the mounting seat is detachably connected to the second end part of the indwelling tube, and the needle column is accommodated in the indwelling tube; a storage groove is formed in the mounting seat; the puncture needle has a first state and a second state, and in the first state, the puncture needle is partially inserted into the containing groove; in the second state, the puncture needle is mounted at the first end part of the delivery tube; the tympanic membrane breather pipe has a contracted state and an expanded state, and in the contracted state, the tympanic membrane breather pipe can be assembled at the first end part of the placing and conveying pipe; and under the condition that the tympanic membrane breather pipe is separated from the feeding pipe, the tympanic membrane breather pipe is switched from the contraction state to the expansion state.

To appropriately retain a tubular retainer in a biological lumen.SOLUTION: A retention device 1 for retaining a stent graft 50 in a biological lumen, includes: a sheath 11 holding the stent graft therein; cord-shaped transformation means 14 which maintains at least a part of the stent graft in an axial direction in a contracted state with the stent graft discharged from the sheath, and which can transform the part from the contracted state into an expanded state; and operation means 20 which is operated in order to retain the stent graft in the biological lumen. The operation means includes: a first operation part 20A for discharging the stent graft from the sheath; and a second operation part 20B for releasing constraint of a part of the stent graft by the conversion means.SELECTED DRAWING: Figure 11

Provided is an indwelling object for a living body that, while preventing dispersal of plaque or thrombi during stent dilation, can suppress inflammation caused by the use of biodegradable polymers at fixation sites for fixing a porous structure to a stent and can suppress decreases in the deliverability of the stent. An indwelling object 100 for a living body is provided with: a dilatable tubular stent 10; a porous structure 20, comprising a first biodegradable polymer and disposed so as to cover the stent 10; and a fixation section 30, comprising a second biodegradable polymer and fixing at least part of the porous structure 20 to the stent 10. The stent 10 comprises a medicament-supporting section 18 that includes a third biodegradable polymer and a medicament, and the time it takes the fixation section 30 to degrade is substantially the same as the time it takes the medicament-supporting section 18 to dissolve, or less than the time it takes the medicament-supporting section 18 to degrade.

The utility model discloses an anti-needle-falling safe indwelling device for blood purification dialysis, relates to the technical field of medical auxiliary instruments, and aims to solve the technical problems that a conventional adhesive tape sticking mode is easy to fall off due to sweating of a patient, and a medical adhesive tape needs to be torn off after hemodialysis is finished, so that pain is brought to the patient. Comprising a placing plate, a protection mechanism and a positioning mechanism, the protection mechanism and the positioning mechanism are arranged on the placing plate, the protection mechanism comprises a first protection shell and a second protection shell which are symmetrically and rotatably installed at the side end of the placing plate, and small holes are evenly distributed in the first protection shell and the second protection shell; and connecting rods are installed on the inner wall of the first protective shell and the inner wall of the second protective shell correspondingly, limiting plates are installed at the tail ends of the connecting rods, the positioning mechanism comprises two sets of positioning plates, and the two sets of positioning plates are symmetrically distributed. The hemodialysis puncture needle has the advantages that the puncture needle can be prevented from falling off, the arm and the puncture position can be protected, and the stability of hemodialysis treatment is further improved.

An indwelling device for treating flora includes probiotics, a carrier carrying the probiotics and including a first region arranged in an appendico and a second region arranged in an intestinal cecum, in which the probiotics are carried in the first region and the second region contains an antibacterial agent.

A feeder that mounts an indwelling device capable of being indwelled in a subject has a connector that connects to the indwelling device in a releasable manner, a power transmission member that is connected to the connector for moving the connector, and an auxiliary member that is disposed at a position where the connector is contacted by the power transmission member as the power transmission member is pulled. The auxiliary member deforms the connector by contacting the connector to release the connection of the connector to the indwelling device, and an opening through which the connector can pass is formed after the connection is released as the power transmission member is further pulled.

To provide a urethra indwelling device capable of being stably retained in a prescribed position within the urethra by a simple structure.SOLUTION: A urethra indwelling device 1 for being retained within the urethra comprises: a prostate chip 10 that is positioned on a tip side so as to be retained in the prostatic portion urethra B; a bulbar urethra chip 20 that is positioned on the hand side so as to be retained in the bulbar urethra C; and a chip connection wire 31 made of a superelastic alloy, which connects the prostate chip 10 and the bulbar urethra chip 20 together. The chip connection wire 31 is shape-memorized in an approximately arc shape with a central angle of 60-130°.SELECTED DRAWING: Figure 1

A treatment device includes an indwelling device including a treatment portion, and a tubular member including a proximal-end opening and in which a proximal-end portion of the treatment portion is disposed. The treatment device further includes an actuator including a connector releasably connected to a proximal-end portion of the treatment portion, and a power transmission member connected to the connector for moving the connector. The treatment portion can be fixed with respect to the tubular member when the power transmission member is retracted such that connector pulls the proximal-end portion of the treatment portion in a proximal direction to a predetermined position. The treatment device also includes a regulation portion for regulating a displacement of the connector in a direction separating from a longitudinal axis of the tubular member in the state in which the connector pulls the proximal-end portion towards the predetermined position.

To provide an in-vivo indwelling implement that can reduce such the risk of unexpectedly occluding a vessel such as peripheral vessels because of leakage or scattering of a material for an in-vivo indwelling implement such as an embolic agent and is facilitated in preventing generation of ischemia, and to provide a system for delivering a material for an in-vivo indwelling implement.SOLUTION: An in-vivo indwelling implement 1 includes: a stent 2 including a radial direction y; and a tubular body 10 fixed to the stent 2 and extending in the radial direction y with the expansion of the stent 2, the tubular body 10 including a side wall 11 and a lumen and further including at least one opening-closing part 20 for communicating between the lumen and the outside of the tubular body 10 in the side wall 11.SELECTED DRAWING: Figure 1

To provide a covered stent resistant to rupture, cracking, and pinhole formation in a covering film due to friction with the sheath of a placement device.SOLUTION: A covered stent 1 configured to be placed in a body lumen comprises a tubular framework part 11 that is expandable and contractible in a radial direction while being stretchable and contractible in a longitudinal direction, and a covering part 12 that covers the framework part 11 in a tubular form. The covering part 12 comprises a first layer 13 having a thin-film structure and covering the framework part 11 from the inner circumferential side, and a second layer 14 that has a nonwoven structure formed by lamination on the outer circumferential side of the first layer 13 by electrospinning and is fused to the outer circumferential surface of the first layer 13 to cover the framework part 11 from the outer circumferential side. The first layer 13 has lower liquid permeability than the second layer 14, and the second layer 14 has lower elongation at breakage and higher breaking strength than the first layer 13.SELECTED DRAWING: Figure 5

The present invention relates to a composition comprising fibrinogen for use in increasing the susceptibility of microorganisms to antimicrobial compounds. The invention can be used to alleviate antimicrobial resistance problems of microbial biofilms or aggregates (e.g. microbial biofilms) on medical devices, in particular indwelling devices, or in wound beds. The device or wound bed can be (pre-) coated with fibrinogen to increase antimicrobial susceptibility. The antimicrobial agent can be supplied separately or together with the fibrinogen.

The utility model discloses a visual nasointestinal tube indwelling device which comprises a guide tube, the guide tube is used for sleeving a nasointestinal tube in a clearance mode, and the end, matched with a human body, of the guide tube is a near end; the bending control mechanism is used for adjusting the bending angle of the near end of the guide tube; the visual probe is arranged at the near end of the guide tube and is in wired or wireless connection with a display device; the air bag is arranged on the inner side of the near end of the guide tube and connected with an inflation and deflation pipeline, and when the inflation and deflation pipeline inflates the air bag, the air bag is full and can abut against the nasointestinal tube arranged on the inner side of the guide tube in a sleeved mode. The utility model has the advantages of high success rate of indwelling catheter, low risk of indwelling catheter and low cost.