58 results about "Indwelling Device" patented technology

An indwelling system (1) for an in vivo indwelling device comprising a first coil (11) and a second coil (21) having a coil hardness less than that of the first coil (11), wherein: a drug is disposed on the surface of the first coil (11); and, on the surface of the second coil (21), either a drug is disposed so that the amount of the drug per unit length of the coil is less than that of the first coil (11), or no drug is disposed.

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).

The utility model discloses an in-vivo indwelling tube for containing radioactive particles and in-vivo indwelling equipment, and relates to the technical field of medical instruments. According to the in-vivo indwelling tube used for containing the radioactive particles, the in-vivo indwelling tube can contain the radioactive particles through the inner cavity, and at least one end of the in-vivo indwelling tube can be closed. The radioactive particles contained in the in-vivo indwelling tube cannot move to the outer side of the in-vivo indwelling tube through at least one end in the closed state. Therefore, the in-vivo indwelling tube can accommodate the radioactive particles, and the radioactive particles can be fixed in the inner cavity of the in-vivo indwelling tube.

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.

The utility model relates to a floor temporary hole indwelling and plugging device, which comprises a hole forming die, an opposite-pull screw rod, an upper pipe clamp, a lower pipe clamp, an upper support pipe, a lower support pipe and a bottom template, a cross rod is arranged at the upper hole of the hole forming die, and the bottom template comprises an outer frame plate and an inner plate which can be detachably opened relative to the outer frame plate. A lower hole opening of the hole forming mold abuts against the upper plane of the inner plate to be sealed, and when the inner plate is opened or detached relative to the outer frame plate, the lower hole opening of the hole forming mold is exposed; the opposite-pull screw penetrates through the middle of the inner plate, the top of the opposite-pull screw extends out of an upper orifice of the pore-forming mold to be connected with an upper supporting pipe, an upper pipe clamp and a locking piece, the bottom of the opposite-pull screw extends out of the lower end face of the inner plate to be connected with a lower supporting pipe and a lower pipe clamp locking piece, and when the locking piece and the opposite-pull screw are locked, the pore-forming mold and the bottom mold plate are clamped; and the outer frame plate of the bottom template is connected with an embedded part which is embedded and fixed with the floor when the floor is poured. By means of the structure, disassembly, assembly and use are convenient, and repeated turnover use can be achieved.

The present invention specifically discloses an arteriovenous vascular indwelling device, which includes an indwelling device body retained inside a blood vessel, and a catheter seat integrally provided with the indwelling device body. The catheter seat is located outside the skin. A guiding channel inside the catheter seat is communicated with the inner cavity of the indwelling device body. An inlet and outlet is arranged on the side wall of the catheter seat and is communicated with a connecting tube through the inlet and outlet. An isolation plug is arranged at the end of the connecting tube; a raised part is arranged at the middle position of the indwelling device body, an opening is arranged on the raised part, the opening is communicated with the guiding channel inside the catheter seat, and a shielding ring plate is arranged at the opening; a partition plate is arranged in the guiding channel, the partition plate is located above the liquid outlet, an adjusting sleeve is arranged above the partition plate, a guiding rod is threadedly connected inside the adjusting sleeve, the lower end of the guiding rod penetrates through the partition plate and enters the inner cavity of the indwelling device body, and a clamping block is fixedly connected to the end thereof. The upper end of the adjusting sleeve is fixedly connected with an adjusting seat.

The utility model discloses a novel stomach tube indwelling device which comprises a head limiting module, a pair of limiting modules and an elastic band, the head limiting module comprises a head hoop and an arc-shaped limiting strip, the arc-shaped limiting strip is fixedly arranged on the head hoop, each limiting module comprises an adjusting rod and an ear connecting block, the top end of each adjusting rod is arranged on the side portion of the head hoop in a sliding mode, and the ear connecting blocks are connected with the adjusting rods. The ear connecting blocks are adjustably arranged at the bottom ends of the adjusting rods, connecting through holes are formed in the side faces of the ear connecting blocks, and the ear connecting blocks are hung on the ears of the patient through the connecting through holes. Compared with the prior art, the device has the advantages of being convenient to wear, firm and stable in three-point positioning of the head, the ear connecting blocks can be adaptively adjusted according to ear positions of different patients, the device has the advantages of being good in adaptability and comfortable to wear, and the adjusting mode is simple, convenient, efficient and reasonable.

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.

The utility model discloses a 24-hour urine indwelling sampling chair which comprises a seat composed of a seat cushion and supporting legs, a backrest is fixedly arranged at the rear end of the seat cushion, armrests are symmetrically arranged on the two sides of the upper portion of the seat cushion and connected with the seat cushion through the supporting legs, and a through hole groove used for being connected with a portable toilet in a clamping mode is formed in the middle of the seat cushion. A through hole groove is formed in the seat cushion, the portable closestool penetrates through the through hole groove to be clamped on the seat cushion, an indwelling device is arranged under the seat cushion and is connected with the closestool through a funnel, a through hole is formed in the outer side of the indwelling device, and the stirring and sampling device penetrates through the through hole to enter the indwelling device. The device has the beneficial effects that by arranging the stirring and sampling device, the cost is reduced, the operation process is simplified, and the situation that peculiar smell is scattered all around due to long-time storage is also prevented.

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.

A breast vomica puncture indwelling device comprises a drainage catheter and an indwelling catheter, a puncture device is arranged in the drainage catheter in a sleeved mode, the indwelling catheter is annularly arranged on the outer surface of the drainage catheter in a sleeved mode, and an expansion fixing structure is connected between the insertion end of the drainage catheter and the insertion end of the indwelling catheter. When the puncture device is used for puncturing, the indwelling catheter is placed in a hole formed by puncturing, the expansion fixing structure enters a body cavity, the drainage catheter is pulled back to control the expansion set to be opened and attached to the inner surface of the body cavity, and the indwelling catheter is prevented from falling off from the puncture hole due to stress. Meanwhile, the hole incision of the patient can be attached to the interior of the annular groove in the indwelling catheter, a good fixing effect is achieved, follow-up nursing is facilitated, the wound is not likely to be touched during cleaning and dressing change, and the pain feeling of the patient is relieved.

To provide an indwelling member that can be prevented from causing disturbance of an inspection using X-ray in the case of indwelling in a living body.SOLUTION: An indwelling member includes a tube and a fluid body. The tube has a tubular shape. The fluid body has flowability and X-ray transmissivity different from that of the tube and is put in the tube.SELECTED DRAWING: Figure 3

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.

Provided are a catheter and a delivery system that can accurately place a tubular indwelling device at an indwelling target site in a body lumen. A catheter 1 for delivering a colonic stent 2 includes: a sheath 11; an elongated inner tube 12 that is configured to move inside the sheath in an axial direction; a plurality of guide ribs 31 to 33 that are disposed on the inner tube to be spaced apart from each other in the axial direction; and a linear member (a restraining strap 21 and a holding wire 22) that maintains axially at least a portion of the colonic stent in a contracted state, with the colonic stent released from the sheath. The plurality of guide ribs each include a tube attachment portion 40 that is eccentrically provided with respect to a circumscribed circle of the guide rib in a cross-section orthogonal to the axial direction and to which the inner tube is attached, and a guide portion 50 through which the linear member is inserted, and are disposed to be displaced from each other in a circumferential direction with respect to the inner tube.

To provide a retainer device with a tubular retainer in which a contrast member is hardly brought into contact with an inner surface of the sheath.SOLUTION: A retainer device with a tubular retainer includes: a tubular retainer which is retained in a biological lumen and which can expand and shrink in a radial direction; and a longitudinal retainer device which detachably and attachably holds the tubular retainer and introduces the tubular retainer into the biological lumen. The retainer device includes a sheath 3 which can store the tubular retainer; and a longitudinal shaft member 4 provided inside the sheath 3 and configured to advance and retract along an axial direction. The tubular retainer includes: an annular Skelton part 17 that locks wire members 16 that is folded in the axial direction and formed by braiding the wire member in a lattice manner; and a contrasting member 18 attached to the wire member. The annular skeleton part 17 is folded such that a gap net the lattice shrinks, and at least one of the locked wire members 16 is stored in the sheath 3 in a state of being inclined with respect to a radial direction.SELECTED DRAWING: Figure 5

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.

A detection device capable of accurately detecting the position of a marker containing a fluorescent dye that is placed in a living tissue is provided. [Solution] The marker detection device 60 is of a probe type and has a cylindrical inner tube portion 62 formed of a light-impermeable material, an excitation light emitting portion 63 arranged around the inner tube portion 62, a cylindrical outer tube portion 66 surrounding the excitation light emitting portion 63, an excitation light cut filter 64 provided within the inner tube portion 62 closer to the rear than the tip surface of the inner tube portion 62, a light receiving element 65 provided within the inner tube portion 62 closer to the rear than the excitation light cut filter 64, and an output portion for the intensity of the fluorescence received by the light receiving element 65, and the excitation light emitting portion 63 is provided closer to the rear than the tip surface of the outer tube portion 66.

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.