32results about How to "Avoiding needlestick injuries" patented technology

An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel, or in prostatic tissue. The system may also include a means to limit and/or adjust the depth of penetration of the ablative fluid into and beyond the tissue of the vessel wall. The catheter may also include structures which provide radial and/or lateral support to the guide tubes so that the guide tubes expand uniformly and maintain their position against the interior surface of the vessel wall as the sharpened injection needles are advanced to penetrate into the vessel wall.

An intravascular catheter for peri-vascular and/or peri-urethral tissue ablation includes multiple needles advanced through supported guide tubes which expand around a central axis to engage the interior surface of the wall of the renal artery or other vessel of a human body allowing the injection an ablative fluid for ablating tissue, and/or nerve fibers in the outer layer or deep to the outer layer of the vessel. A method of treating hypertension involves injecting an ablative fluid such as ethanol deep into zones in the wall of the renal artery such that the zones of fluid merge to form a circumferential ablation ring at a depth which ablates sympathetic nerves while minimizing injury to interior layers of the vessel wall.

The invention discloses a medical needle stick injury preventing device, which is characterized in that: an outer shell is internally provided with a lock catch; the lock catch is internally provided with a limit stop which is provided with a through hole used for the passing-through of a needle tube; the needle tube is provided with a lug boss; the inner wall of the outer shell is provided with a concave groove; the front end of the outer shell is provided with a lug boss; the lock catch is internally provided with an empty cavity used for containing the limit stop; the surface of the lock catch is provided with a convex piece; the rear end of the lock catch is provided with a base body; the inner wall of the base body is provided with a concave and convex part; the surface of the limit stop is provided with a concave and convex part; the front end of the lock catch has two spring plates in shape of '7'. Due to that the needle stick injury preventing device is additionally arranged on the invention, the lock catch is arranged inside the outer shell, and the limit stop is arranged inside the lock catch, when in use and when the normal puncture operation of infusion and injection is completed, medical staff pull out the needle tube and move the base of the needle tube, and put the tip of the needle tube into the lock catch of the needle stick injury preventing device; the function of the lock catch ensures the needle tip does not extend out of the lock catch and the outer shell, thus preventing needle stick injuries and avoiding the danger of inflection of the medical staff due to the needle stick injury; in addition, the medical needle stick injury preventing device has the advantages of simple structure and convenient operation.

The invention discloses a pipeline pre-filling circulation device special for ECMO and application of the device. The pre-filling circulation device comprises an infusion bag pre-filled with normal saline, the bottom of the infusion bag is provided with two pre-filling liquid ports, a heparin capsule containing a heparin sodium medicine solution is arranged between the two pre-filling liquid ports, and a channel is formed between the heparin capsule and the infusion bag and internally provided with blocking thin film, and the distance between the two pre-filling liquid ports is 6-8 cm; the pre-filling circulation device can avoid liquid emptying caused by using a liquid transfer bag, shorten the pipeline pre-filling time and increase the primary pre-filling success rate of the ECOM.

The invention belongs to the field of medical equipment and discloses a disposable sterile syringe comprising a protection sleeve tube. The disposable sterile syringe comprises a handle, a push rod, a syringe, the protection sleeve, a needle and a sleeve needle cap. The disposable sterile syringe is characterized in that the needle and the syringe are integrated and cannot be separated; the outer sleeve tube is located outside the syringe; the outer sleeve tube is pushed towards the direction of the needle so as to cover the integral needle when the suction of the medicine liquid is achieved. According to the disposable sterile syringe comprising the protection sleeve tube, the structure is simple, the use is convenient, the needle puncture caused by needle cap back sleeving can be effectively avoided, the aseptic condition of the needle can be convenient to maintain before injection, the needle puncture caused by the needle separation can be avoided after the injection, and the certain application value is achieved.

A safety cover configured to be coupled to an injection device and to provide a protective enclosure for a needle of the injection device, the safety cover including an outer cover member; an inner cover member coupled to the outer cover member in a concentric arrangement so that the outer cover member encloses at least a portion of the inner cover member, wherein the outer cover member is configured to move relative to the inner cover member from an unlocked position, in which the needle of the injection device is accessible for use, to a locked position, in which the outer cover member and the inner cover member are fixed at one another and the needle of the injection device is inaccessible, wherein the outer cover member includes a body that includes a proximal end, a distal end, and a cavity defined within the body.

The invention relates to a safe disposable injection needle for children which can effectively resolve problems arising from quick and safe intramuscular injection of children. The technical scheme is characterized in that the outside of a steel needle is provided with a sliding sleeve fixedly connected to the front end of a needle cylinder; the steel needle is equipped with a sliding seal column capable of sliding forward and backward along the length direction of the steel needle in a sleeving manner; a needle storage sleeve fixed with the sliding seal column is arranged between the sliding sleeve and the steel needle; the front end of the needle storage sleeve stretches out of the sliding sleeve; a sleeve pipe is connected to the front end surface of the seal column; the sleeve pipe is fixed with the front end of the needle storage sleeve and stretches out of the front end of the needle storage sleeve; and the steel needle stretches into an inner cavity of the needle storage sleeve, penetrates through the seal column and then stretches into the inner cavity of the sleeve pipe forward. After injection, a needle tip of the steel needle is protected by the sleeve pipe, which prevents needle-stick injuries. After needle insertion, the needle is fixed by a location cover and is precluded from shaking. Injection is carried out in such a manner that the sliding sleeve drives the steel needle to be away from a human body. The safe disposable injection needle for children is an innovative product of an injector due to safety and reliability, convenient application and excellent effect.

The invention provides an insulin pen needle head unloading device. The device comprises an upper cover (1), a base board (2), an active gear (4), a driven gear (5), a drive mechanism (6), a motor (7) and a lower cover (8); a through hole (54) opening from top to bottom is arranged in the axle center of the shaft of the driven gear, the inner diameter of the through hole is greater than the outer diameter of an insulin pen needle head seat, multiple raise lines in the upper and lower directions are distributed on the upper end of the inner wall of the through hole; the needle head of the insulin pen is plugged in the through hole of the shaft center of the driven gear of the unloading device of the insulin pen needle head, the raised lines on the inner wall of the through holes are stuck on the outer wall of the insulin pen needle head base, the motor is started, the active gear and driven gear are moved to spin through the drive mechanism, the insulin pen needle head is spun down from the insulin pen and is fallen into a lower cap, the separate operation of insulin pen needle head is accomplished, manual operation is freed, and needle stick injuries caused when the needle head is separated are prevented.

The invention discloses an electric medical sharp instrument cylinder, and relates to the technical field of medical instruments. The electric medical sharp instrument cylinder comprises a cylinder body and a cylinder cover, a cutting device is arranged on the cylinder cover, a toppling and falling prevention device is arranged at the bottom of the cylinder body, the cutting device comprises a telescopic blade and a motor, the motor controls the blade to expand and contract, and adjacent expanding and contracting time interval of the blade is 2-60 seconds. According to the sharp instrument cylinder, a sharp instrument can be electrically cut off, so that sharp instruments on an infusion device cannot be manually cut off by medical staff through tools such as shears, the medical staff are prevented from being pricked by sharp instruments falling outside the instrument cylinder, stability of the sharp instrument cylinder is improved, medical staff potential safety hazard caused by toppling and falling of the sharp instrument cylinder is avoided, and the sharp instrument cylinder is simple in structure and easy to operate.

The invention discloses a disposable syringe capable of protecting needle and preventing needle-stick injury. The disposable syringe is composed of an injector, a transparent sleeve and an elastic clip, wherein a screw thread is formed in the barrel body of the syringe; a strip-shaped groove is formed in the top section of the transparent sleeve; an inner screw thread is formed in the inner wall of the lower end of the transparent sleeve; the inner diameter of the upper end of the transparent sleeve is more than the outer diameter of a needle bolt; the transparent sleeve covers the syringe and is in threaded connection to the barrel body of the syringe; the transparent sleeve is longer than the syringe; the position of the strip-shaped groove of the transparent sleeve is in correspondence to the needle bolt; the chuck of the elastic clip is located inside the transparent sleeve and is in correspondence to the periphery of the needle bolt; and the handle of the elastic clip extends out of the strip-shaped groove. The disposable syringe disclosed by the invention can be used for avoiding relative contact between fingers of a user and needle tip from medicine suction until to the end of injection, so as to effectively protect doctors from danger of needle-stick injury when returning a needle cap and processing sharp instrument; therefore, the occupational safety of doctors is guaranteed.

The invention discloses a blood taking needle with a protection function. The technical scheme is as follows, a rotary positioning rod which overturns outwards is hinged to the side surface of a needle handle, the end, away from the hinged end, of the rotary positioning rod is fixedly connected to a top plate axially perpendicular to the rotary positioning rod, the periphery of the top plate is connected to a baffle vertically extending towards the side of the hinged end of the rotary positioning rod, the top plate and the baffle enclose an accommodating space of the tip of the needle body, and baffle away from the rotating positioning rod is an elastic baffle. According to the invention, through a limiting plate, the blood sampling operation of a left-falling operator is considered, the puncture success rate is increased, the patient experience is improved, and the patient satisfaction degree is improved; a protective sleeve composed of the top plate and the elastic baffle sleeves theneedle tip in a poking mode, operation is easy, needling injuries caused by secondary back-sleeving are effectively avoided, the needle tip and the operator are isolated all the time in the treatmentprocess, and the needling injuries are avoided.

The invention discloses a safety bottle stopper puncture device for preventing pricking wound, and aims to provide the safety bottle stopper puncture device with simple structure, low cost, simplicity and convenience in operation, and capability of effectively preventing from being stabbed. The safety bottle stopper puncture device comprises a bottle stopper puncture needle head, wherein a bottle stopper puncture needle cap s;eeves the bottle stopper puncture needle head; a hollow safety protective cover sleeves the outside of the bottle stopper puncture needle cap; one end of the safety protective cover is connected with a bottle stopper puncture needle fixed handle of the bottle stopper puncture needle, and the other end of the safety protective cover is opened; the length of the safety protective cover is larger than the length of the bottle stopper puncture needle head.

The invention discloses a blood collection indwelling needle, a blood collection indwelling assembly and an operation method, and the blood collection indwelling needle comprises a communication body, an inner flow channel, a needle head and a needle head, an indwelling catheter communicated with the internal flow channel; a blood sampling connecting end used for being detachably connected into a blood drainage device; and an acupuncture connecting end communicated with the internal flow channel, wherein the acupuncture connecting end is used for being detachably connected with an acupuncture device, and an indwelling needle of the acupuncture device can activate the acupuncture device when an indwelling needle tube is pulled out of the indwelling catheter, so that a needle tip is protected from being punctured by acupuncture. The blood collection connecting end is added to the blood collection indwelling needle and used for being connected with the blood drainage device. When blood sampling is carried out, secondary puncture does not need to be carried out on a patient, the pain of the patient is relieved, and meanwhile thrombosis caused by blood residues is avoided. Meanwhile, the blood sampling device can be pulled out of the communicating body after blood sampling, and the needle tube without the cutting edge cannot cause pricking injury.

The integrated injector comprises a needle cylinder, a pintle, a piston and a needle tip, the pintle and the piston are installed in the needle cylinder, the piston is installed at the front end of the pintle, and the piston and the needle cylinder are in sealed sliding fit; the syringe is characterized in that the needle tip is integrally fixed at the front end of the needle cylinder, a sealing needle cap is sleeved on the needle tip, and the rear end of the sealing needle cap is hermetically connected with the front end of the needle cylinder; wherein a gas storage cavity is formed in the piston, a gas inlet communicated with the gas storage cavity is formed in the front surface of the piston, and a one-way ventilation structure enabling gas to circulate to the gas storage cavity under positive pressure is arranged at the gas inlet; and the needle cylinder is provided with a protection device used for sleeving the needle point to prevent the needle from being punctured. The infectious vaccine injector is ingenious in structure, reasonable in design, convenient and safe to use and capable of effectively solving the bad problems caused by infectious vaccine injection at present.

The present invention provides medical syringe for preventing needle-stick injury, wherein an inner diameter of a middle part of an elastic disengaging ring is larger than an inner diameter of a front part and an inner diameter of a rear part. The elastic disengaging ring is located between a distal wall of a syringe barrel and a needle. When the middle part of the elastic disengaging ring plugged onto the conical fitting of the syringe barrel is radially pinched flat, the proximal end of the elastically deformed elastic disengaging ring leans against the distal wall of the syringe barrel, and the front end of the elastically deformed elastic disengaging ring leans against the proximal end of the needle and pushes the needle to move forward, so that the needle is disengaged from the conical fitting of the syringe barrel.

The invention belongs to the technical field of medical instruments, and discloses an anti-needling universal collection device. The anti-needling universal collection device comprises a needle storage box. an opening is formed in one end of the needle storage box and matched with each puncture needle in an inserted mode; the device further comprises a sliding groove opening and a concentric-square-shaped groove communicating with the sliding groove opening; the sliding groove opening and the concentric-square-shaped groove communicating with the sliding groove opening are located on the two sides of the open end of the needle storage box and are symmetrically arranged; a U-shaped plate is further included; and the U-shaped plate is arranged at the open end of the needle storage box. During use, puncture needles are stored in the needle storage box; each puncture needle handle is put in from the sliding groove opening and slides to the concentric-square-shaped groove to be fixed; and the anti-needling universal collection device can be operated by one hand, is convenient, safe and efficient, can collect various puncture needles, effectively avoids puncture injuries, safely manages puncture medical consumptions in the whole process, prevents cross infection in hospitals, and creatively solves the problems of puncture prevention and infection avoidance of the puncture medical consumptions.

The invention discloses an anti-stabbing syringe and a self-destruction method thereof, and relates to the technical field of medical supplies. An anti-stabbing syringe comprises a needle tube, a push-pull rod, a needle seat, a needle head and a needle sleeve. A normal connection state and a destroy connection state exist between the needle sleeve and the needle seat; in a normal connection state, the needle sleeve is sleeved into the needle head and the needle seat through the opening and is in screwed fit with the external thread of the needle seat through the internal thread, and the two buckles of the needle sleeve are respectively opposite to the two ports of the groove of the needle seat; and in a connection destroying state, the needle sleeve is sleeved into the needle head and the needle seat through the opening, and the internal thread of the needle sleeve integrally crosses the external thread of the needle seat or partially crosses the external thread of the needle seat and is respectively clamped into the two ports of the groove of the needle seat through the two buckles. The needle sleeve has the advantages that the mounting and dismounting mode of the needle sleeve is changed from traditional'plugging 'into'screwing-in and screwing-out', only radial rotating force needs to be provided when the needle sleeve is dismounted, pulling with force is not needed, and the needle stick injury caused by hand rebound when the needle sleeve is pulled out is effectively avoided.

The invention relates to a dosage-controllable rapid analgesic injection device for a battlefield. The injection device comprises a hollow pen body and a compressed spring in the pen body, wherein a pressing bar threads out one end of the pen body, a needle is arranged at the other end of the pen body, the pressing bar is abutted against a head end of the arranged compressed spring in the pen body, and a tail end of the compressed spring is abutted against a bulge of the internal wall of the pen body; the needle communicates with one end of a drug bin in the pen body, and the other end of the drug bin is provided with a pressing part for extruding contents of the drug bin; and thorn strips are further arranged between the pressing bar and the internal wall of the pen body, top ends of the thorn strips are abutted against the pressing part of the drug bin, and a reverse stopping ratchet which is used for pushing the thorn strips towards a drug bin direction is arranged aside the pressing bar. The injection device has the beneficial effects that the convenience of injection and the controllability of injection dosage can be improved through controlling and setting the storage type drug bin and pressing times, and the difficulty of injecting in a battlefield environment can be lowered.