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55 results about "Syringes needles" patented technology

Device for assisting Ommaya capsule in extracting cerebrospinal fluid

The invention provides a device for assisting an Ommaya bag in extracting cerebrospinal fluid, and belongs to the technical field of medical instruments. Comprising an annular sterile positioning base and an injector, a through hole is formed in the middle of the annular sterile positioning base, a fixing cylinder concentric with the through hole is fixedly connected to the upper surface of the annular sterile positioning base, a stretching assembly is arranged on the right side of the fixing cylinder, and a tightening assembly is arranged in the fixing cylinder; elastic assemblies are arranged on the left side and the right side of the upper surface of the fixing cylinder. The operation sterile area is enlarged through the sterile adhesive layer and the transparent soft plate, the sterile adhesive layer composed of the nano-silver coating can achieve 72-hour continuous antibiosis, infection prevention and pathogen invasion risk reduction, the center position is located through concentric circle cross scales of the sterile semi-transparent film, guiding and visual positioning of the syringe needle are achieved, and the operation safety of the syringe needle is improved. The needle head can vertically penetrate into the center of a capsule cavity, and hematoma or capsule wall damage caused by puncture deviation is avoided.
Owner:NANFANG HOSPITAL OF SOUTHERN MEDICAL UNIV

Infusion bag structure with double needle-free connectors

The utility model discloses an infusion bag structure with double needleless joints, and aims to solve the problems that in the prior art, when a needle cylinder syringe is used for adding medicine into an infusion bag, a syringe needle needs to pierce the infusion bag, at the moment, needle stabbing is prone to occurring, pollution is increased, an infusion bottle plug needs to be pierced by an infusion apparatus when nurses conduct intravenous infusion on a patient, and infusion is inconvenient. The needle stick injury is easily caused; the infusion particles are increased; and the pollution is caused. The infusion bag structure comprises an infusion bag, a liquid drainage pipe is installed in the infusion bag in a penetrating mode, a first external thread connector is installed at the bottom end of the liquid drainage pipe, and a first valve shell is arranged below the first external thread connector. At the moment, the needle injury is easy to occur, pollution is increased, and when nurses carry out intravenous infusion on patients, an infusion bottle plug needs to be punctured by an infusion apparatus, the needle injury is also easy to cause, and infusion particles and pollution are increased.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Stable type muscle syringe needle limiting mechanism

The utility model relates to the technical field of syringe needle limiting parts, and discloses a stable muscle syringe needle limiting mechanism which comprises a supporting sleeve, a supporting plate and a syringe needle assembly, the supporting plate is arranged at the bottom of the supporting sleeve, and the syringe needle assembly is located on the inner side of the supporting sleeve and penetrates to the bottom of the supporting plate. An adjusting assembly is arranged on the outer side of the supporting sleeve, a limiting supporting assembly which is arranged on the outer side of the syringe needle assembly in a sleeving mode and fixedly connected with the adjusting assembly is arranged in the supporting sleeve, and a supporting movable assembly is arranged at the bottom of the supporting plate. According to the stable muscle syringe needle limiting mechanism, medical staff are allowed to adjust and lock the insertion depth of the syringe needle, the accuracy and safety of injection are improved, the stable muscle syringe needle limiting mechanism can adapt to syringe needles of different lengths, the supporting stability of the syringe needle limiting mechanism is improved, use convenience is improved, and the stable muscle syringe needle limiting mechanism is worthy of popularization and application. And the use of a user is facilitated.
Owner:HU NAN KANG LI LAI YI LIAO QI XIE YOU XIAN GONG SI

Needle adapter of common syringe for oral cavity

The utility model relates to a common oral syringe needle adapter, which aims to solve the technical problem that different syringes and syringe needles cannot be universally used at present, and comprises an adapter body, a first adapter mechanism and a second adapter mechanism, the first switching mechanism is used for switching a clamping type injection needle, the first switching mechanism comprises a medicine guide groove and an external thread, the medicine guide groove is formed in the middle of the adapter body in a penetrating mode, the inner diameter of the medicine guide groove is sequentially reduced from the bottom to the head, injector ports with different outer diameters can be connected, and through the external thread on the outer side of the head of the adapter body, the clamping type injection needle can be connected. On one hand, a clamping type injection needle can be connected, and on the other hand, the connector can be connected with internal threads on the inner wall of the connecting sleeve and can be connected with a common injection needle.
Owner:URUMQI STOMATOLOGICAL HOSPITAL

Medical syringe needle separating device

The invention provides a medical syringe needle separating device, and relates to the technical field of syringe needles. The device comprises a clamping mechanism, the clamping mechanism comprises a rotatable rotating disc, a plurality of barrel grooves are formed in the edge of the rotating disc, a clamping assembly is arranged on the rotating disc on the lower portions of the barrel grooves, a cutting mechanism conducts needle cutting on an injector clamped by the clamping mechanism, the cutting mechanism comprises a stand column, a fixed blade is arranged on the stand column, and a movable blade is arranged on the stand column in a sliding mode. The cylinder groove is matched with an injector cylinder in shape, the clamping assembly clamps or loosens an injector in the cylinder groove, the blade point of the fixed blade and the blade point of the movable blade are oppositely arranged, and a driving source for driving the movable blade to slide in a reciprocating mode is arranged on the side portion of the movable blade. And the syringe needle in the cylinder groove passes through the position between the blade points of the fixed blade and the movable blade along with the moving track of the turntable. The syringe needle is cut off to achieve needle separation, manual operation is not needed, and personnel infection is avoided.
Owner:CHENGDU TECH UNIV

Multi-material syringe needle shield and method of manufacturing thereof

Provided herein is a needle shield for use with a syringe comprising a needle and a barrel. The needle shield includes an elastomeric skin layer configured to receive the needle therein and maintain tightness between the needle shield and the needle when the needle shield is positioned on the syringe, and a rigid core embedded within the elastomeric skin layer.
Owner:BECTON DICKINSON FRANCE SAS

Refill kit for implantable pump

The invention relates to a kit for refilling an implantable pump and, more particularly, to packaging and contents of a kit to improve the workflow of a user while adding medication to an implantable pump that has been surgically implanted in a patient. kit for refilling an implanted pump. The kit comprises a setup tray containing at least one needle, a fenestrated drape, a first syringe, a needle, a filter, and clampable tubing; and a medication tray containing a second syringe, at least one ampule of medication, an ampule opener, and aspiration tubing. The medication tray is molded to have a recess that securely holds the at least one ampule in both a horizontal position and in a vertical position.
Owner:AMNEAL PHARMACEUTICALS LLC

Preparation method of agarose-cellulose-polyurea composite aerogel fiber

The invention discloses a method for preparing agarose-cellulose-polyurea composite aerogel fiber, which relates to the field of aerogel materials. The method comprises the following steps: connecting a polyfluoroethylene hose to a syringe needle to enable an agarose-cellulose spinning solution to gel into a fiber shape in a coagulation bath due to its self-gelling property; controlling the gelation rate by adjusting the temperature of the coagulation bath, thereby preparing continuous agarose-cellulose composite fibers; reacting the agarose-cellulose composite fibers with components A and B of a synthetic polyurea to in-situ composite the agarose-cellulose composite fibers with polyurea; and finally drying the fibers with supercritical carbon dioxide to obtain agarose-cellulose-polyurea composite aerogel fibers having hydrophobicity and flexibility.
Owner:INNER MONGOLIA UNIV OF SCI & TECH

Method suitable for manufacturing microbial specimen by UV (ultraviolet) adhesive sealing

PendingCN121136838AFungiBacteriaBiotechnologyColony morphology
The invention discloses a method suitable for manufacturing a microbial specimen by sealing UV glue, and belongs to the technical field of microbial specimen manufacturing, microorganisms are inoculated to a plate culture medium for culture, then a cultured microbial plate is sterilized and dried, the preheated UV glue is poured into the dried microbial plate, and the microbial specimen is obtained. And carrying out auxiliary defoaming by using a hot air gun or a syringe needle or a vacuum pump, and finally, irradiating for 5 minutes or 8 minutes by using a 36W ultraviolet lamp, so as to obtain the microbial specimen. The method is mainly used for keeping morphological characteristics such as bacterial colony shape and color of microorganisms to the greatest extent after a series of specimen manufacturing process steps are carried out on a cultured microorganism plate with relatively obvious bacterial colony morphological characteristics, the processing steps are simple, convenient and safe, the prepared specimen is stable, and the method is suitable for large-scale popularization and application. The exhibition period is longer, and the exhibition effect is better.
Owner:SICHUAN UNIV

Self-destructive protection device for syringe needle

The invention discloses a self-destruction protection device for a syringe needle, and belongs to the technical field of needle protection equipment, the self-destruction protection device comprises a syringe, a syringe needle, a protection device for wrapping and protecting the syringe needle, and a prying and separating device for conveniently separating the syringe needle from the syringe; on the premise of not changing the shapes and the injection principle of a traditional injector and a traditional injection needle, the self-destruction protection device for the injection needle is designed and is matched with a protection device of the traditional injection needle, so that the situation that the injection needle is punctured to injure a user accidentally in the process that the injection needle is taken down from the injector to be independently stored and collected is avoided, and the service life of the injection needle is prolonged. Meanwhile, residual liquid medicine in the syringe can be prevented from flowing out, the syringe needle is stored in a sealed mode, the syringe needle is directly isolated from the outside, bacteria are prevented from being volatilized in air, and the risk that the bacteria volatilize and infect after the syringe needle is used is greatly reduced.
Owner:THE 924TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Wearable spinal training device

Described and demonstrated herein are embodiments of a wearable training device that is capable of realistic simulation of a plurality of spinal column regions for training of multiple procedures. In a simulated training procedure, a user may pierce the outer skin of the training device with a syringe needle. The user may direct the syringe needle to a tube within the vertebrae that simulates a spinal cord. The user may pierce the tube and use the syringe to extract the fluid from the tube and / or inject fluid into the tube and remove the syringe from the training device.
Owner:EDWARD VIA COLLEGE OF OSTEOPATHIC MEDICINE

Protective sleeve syringe needle

The utility model provides a syringe needle with a protective sleeve, and belongs to the technical field of syringes. A syringe needle with a protective sleeve comprises a needle body, the needle body is divided into a needle body and a needle cap, a telescopic assembly is installed on the needle cap of the needle body, and the telescopic assembly is arranged on the peripheral side of the needle body; the telescopic assembly comprises a fixed sleeve fixed to the needle head, the peripheral side of the fixed sleeve is sleeved with a movable sleeve, at least two sealing plates are hinged to the bottom of the movable sleeve, an abutting ring and at least two pressing rods are arranged in the movable sleeve in a sliding mode, and the pressing rods and the abutting ring are fixed together. According to the syringe needle protection sleeve, the abutting ring abuts against the sealing plate to enable the sealing plate to be opened and closed, through the arrangement of the movable sleeve, the syringe needle protection sleeve cannot leave the syringe needle in the syringe needle opening and closing process, and therefore the problem that the syringe needle protection sleeve is lost due to the fact that the syringe needle protection sleeve is placed at will can be solved, and people are accidentally injured by the syringe needle.
Owner:ZHEJIANG YUSHENG MEDICAL INSTR CO LTD

Local sealing treatment device for oral mucosal disease

The invention relates to the technical field of medical equipment, in particular to an oral mucosa disease local sealing treatment device which comprises an injector, a needle head, a limiter and a negative pressure control unit, the needle head comprises a needle seat and a curved needle, the curved needle is arranged on the needle seat, and the needle seat is used for being connected with an injection head of the injector. The limiter comprises a flexible cannula assembly, a cannula control assembly, a protective cover assembly and an elastic piece, the flexible cannula assembly is connected to the curved needle in a sleeving mode, the negative pressure control unit adopts a negative pressure injection mode, when mucous membranes are sucked up, signal transmission of local peripheral nerves can be temporarily blocked, and therefore the pain caused by needle head puncture is reduced, and the safety of the mucous membranes is improved. When positions such as gingiva which cannot be sucked up are injected, the protective cover assembly is pushed upwards, the protective cover assembly exposes the needle head, at the moment, piercing injection is directly carried out, when oral mucosa which can be sucked up is injected, the needle head part is covered by the protective cover assembly, the needle head cannot scratch a patient, the safety is good, the pain feeling is small, and the injection depth can be controlled.
Owner:STOMATOLOGICAL HOSPITAL OF CHONGQING MEDICAL UNIV

Hydro-optic syringe needle

The utility model provides a hydro-optical syringe needle, which relates to the technical field of syringes, and comprises a massage support assembly and an in-place bearing part, the side of the massage support assembly is provided with the in-place bearing part which is fixedly installed, one end of the massage support assembly is provided with an operation injection mechanism which is fixedly inserted, and the other end of the massage support assembly is provided with a water injection mechanism. The in-place bearing component comprises a side plate, a driving air cylinder, a transverse frame, a pipe body, an upper bowl wall, a spherical convex block, a needle base, an injection needle and a sliding block, and the side plate is arranged on the side of the massage supporting assembly; according to the utility model, the damping base which is annularly distributed is mainly utilized below the annular plate, so that the damping base can be matched with the upper magnetic head to act on an affected part of a patient, the massage treatment effect can be achieved after treatment, and the comfort of the patient can be improved during carrying due to the damping base; and under the massage of the magnetic head, the equipment can effectively achieve the massage effect on the patient, so that the physiotherapy effect of the equipment is improved.
Owner:SHANGHAI HUIBANGZHI BEAUTY & MEDICAL BEAUTY CLINIC CO LTD

Multifunctional sharp instrument box

ActiveCN222585232Uimprove securityInsulin pen needleDiabetic patient
The multifunctional sharp instrument box is characterized in that through holes are formed in the surface of the upper portion of a main machine cover (4), an insulin pen needle dismounting assembly (2) and an injector needle dismounting assembly (3) are installed in the through holes respectively, a sliding cover (1) is installed on the surface of the upper portion of the main machine cover (4) through a sliding rail to shield the insulin pen needle dismounting assembly (2) and the injector needle dismounting assembly (3), and the lower portion of the main machine cover (4) is fixedly connected with the upper end of a telescopic box wall (5); the lower end of the telescopic box wall (5) is screwed with a box bottom (6); a battery pack (4-1) and a control panel (4-2) are fixedly installed in the main machine cover (4), the first needle feeding port (4-3) and the second needle feeding port (4-4) are communicated with a cavity formed by the lower surface of the main machine cover (4), the telescopic box wall (5) and the box bottom (6), a needle head of an insulin pen and a needle head of an injector can be automatically detached, and the safety of medical workers and diabetics can be effectively improved.
Owner:XUZHOU CENT HOSPITAL

Syringe needle sealing device

The utility model provides a syringe needle sealing device which comprises a sealing body, one end of the sealing body is an inserting opening end, the other end of the sealing body is a closed end, and a containing cavity capable of containing a syringe needle is formed in the sealing body. The at least two sealing pieces are rotationally installed in the containing cavity and located at the inserting opening end, each sealing piece comprises a rotating arm and a sealing block installed at one end of the rotating arm, and the sealing blocks correspond to the inserting opening end; wherein the sealing piece is configured to be capable of being driven by a syringe needle to rotate when the syringe needle is inserted into the containing cavity, so that the socket end is sealed by the sealing block. The needle head is sealed after being used, the needle head can be prevented from being separated from the sealing device, and therefore the risk that the needle head is exposed is avoided.
Owner:RENMIN HOSPITAL OF WUHAN UNIVERSITY (HUBEI GENERAL HOSPITAL)

Polishing device for syringe needle

The utility model provides a grinding device for syringe needles, and belongs to the technical field of grinding of syringe needles. Comprising a base, a grinding part and two clamping parts are arranged at the top of the base, each clamping part comprises an obliquely-arranged lower clamping plate, limiting rods are arranged at the four corners of the top of each lower clamping plate, and a supporting plate parallel to the lower clamping plates is arranged between the tops of the limiting rods; a blowing assembly is arranged at the top of the supporting plate and comprises an air spraying head and a draught fan used for supplying air to the air spraying head. When a needle head clamped on the clamping part on one side is ground, a worker can disassemble and assemble the needle head on the clamping part on the other side, so that the working efficiency is effectively improved; the syringe needle is obliquely clamped between the upper clamping plate and the lower clamping plate, cutting fluid obliquely flows downwards when sprayed to the needle point of the syringe needle, a large amount of cutting fluid is effectively prevented from flowing into the needle point of the syringe needle, the fan is started to enable air to be sprayed to the needle point of the syringe needle from the air spraying head, the polished syringe needle can be quickly air-dried, and time is saved.
Owner:WEIHAI FUSAN NEEDLE MEDICAL TECH CO LTD

A cleaning structure for syringe needle processing

The utility model relates to a kind of cleaning structure for syringe needle processing, belong to syringe needle processing technical field.It includes cleaning tank, the ultrasonic cleaner is equipped in cleaning tank two sides, motor is equipped in cleaning tank side, rotatingly connected with the storage bin in cleaning tank by the rotating mechanism of both sides setting, the output shaft of motor is fixedly connected with a rotating mechanism and penetrates cleaning tank, the water inlet hole of several even arrangements is penetrated in the lower end of storage bin, storage bin is equipped with placing plate, several placing grooves are evenly arranged on placing plate, adjusting mechanism is fixedly connected on the side of placing groove, limiting screen is fixedly connected in the lower end of adjusting mechanism.It is rotated to the storage bin in cleaning tank by setting rotating mechanism, the position of storage bin is adjusted during cleaning, and cooperate limiting screen to limit needle in placing groove, needle is continuously vibrated in placing groove, so that cleaning fluid and needle can be fully contacted.
Owner:WEIHAI FUSAN NEEDLE MEDICAL TECH CO LTD

Method for monitoring tomato fusarium wilt and early prevention and treatment based on minimally invasive tissue sampling

The invention belongs to the field of biotechnology research, and describes a method for monitoring tomato fusarium wilt and early prevention and treatment of diseases based on minimally invasive tissue sampling. The method comprises the following steps: puncturing a tomato stem base through a sterile syringe needle to obtain trace vascular bundle tissues, and performing rapid nucleic acid extraction; then, whether the plant is infected or not is judged 5-7 days before typical symptoms appear through an isothermal amplification nucleic acid detection technology, the positive detection rate of a loop-mediated nucleic acid isothermal amplification (LAMP) detection method is 47.6%, and the positive detection rate of a recombinase-mediated nucleic acid isothermal amplification (RAA) detection method is 89.71%; finally, for the detected positive plants, in the window period when disease symptoms do not appear, trifluoropyridylamine and bacillus velezensis JSBV63 are adopted for root irrigation treatment in time, the progress of plant diseases can be controlled and blocked, and the control effect can reach 90% or above after two times of pesticide application. The combination of minimally invasive sampling, isothermal nucleic acid amplification detection and medicament treatment realizes a whole set of complete fusarium wilt prevention and treatment technical process from early diagnosis of pathogen infection to disease treatment.
Owner:JIANGSU ACAD OF AGRI SCI

An ovulation induction self-injection device

The present application relates to an ovulation induction self-injection device, comprising: an arm sleeve, the arm sleeve including an outer sleeve and an annular airbag surrounding the inner part of the outer sleeve, the annular airbag being connected to a control unit, and a needle insertion hole for inserting a syringe needle being formed on the side wall of the outer sleeve; an injection unit, the injection unit including a mounting rack vertically located on the side wall of the outer sleeve, a clamp for clamping a syringe barrel being provided on the mounting rack, and an injection mechanism slidably connected to the mounting rack and pushing the syringe barrel and a syringe plunger in the direction of the outer sleeve. When injecting a drug, the present application uses the injection mechanism to push the syringe barrel and the syringe plunger in the direction of the outer sleeve. After the injection mechanism inserts the syringe needle into the subcutaneous tissue, it continues to push the syringe plunger to inject the drug into the subcutaneous tissue to complete self-injection. The present application can self-position and automatically inject drugs, facilitating self-injection by patients and reducing the injection difficulty.
Owner:WUHAN UNIV

Convenient-to-disinfect separating and collecting device for reusable syringe needles in department of stomatology

ActiveCN223054844UInfusion needlesAnesthesia syringeOperation safety
The utility model discloses a stomatology department reuse syringe needle separating and collecting device convenient to disinfect, which comprises a box body, a partition plate is arranged in the box body, the box body is divided into a hollow box and a needle collecting box by the partition plate, and a through hole is arranged on the partition plate to communicate the hollow box with the needle collecting box. Meanwhile, a clamping mechanism is installed on the partition plate close to one side of the hollowed-out box, the end of an injector with a needle to be separated sequentially penetrates through the clamping mechanism and a through opening in the partition plate, and the needle of the injector is clamped and fixed through the clamping mechanism. According to the device, the operation safety can be improved, the problems of sharp instrument injury and the like are avoided, people can conveniently and rapidly control the anesthesia syringe to be safely separated from the needle head part, meanwhile, the device can be repeatedly used and disinfected together with a reused syringe, and the disinfection cost is reduced.
Owner:AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV

Blood glucose test box with detachable sharp instrument box

PendingCN121867961ASurgical furnitureInfusion needlesCross infectionNeedle disinfection
The invention provides a blood glucose test box with a detachable sharp instrument box, and provides the following scheme aiming at the problems that according to an existing blood glucose test box, discarded syringe needles are inconvenient to independently and safely transfer, treat and disinfect, syringe needles which are not used and used are placed in a concentrated mode, cross infection is prone to occurring, and the syringe needles cannot be flexibly disassembled and carried. The blood glucose test box comprises a blood glucose test box body and a box cover rotationally connected to the top of the blood glucose test box body through a hinge, unused syringes, insulin needles and waste needle heads can be independently and separately placed, the cross infection phenomenon is reduced, a waste sharp instrument box can be intelligently, automatically and rapidly opened and two containing boxes can be conveniently and rapidly moved out through single drive, operation is easy, convenient and labor-saving, and the test efficiency is improved. The blood glucose test box is simple in structure and convenient to use, waste needles can be automatically disinfected and sterilized when the shielding is closed, in addition, the waste sharp instrument box can be conveniently, rapidly and independently disassembled, the waste needles do not need to be independently taken out, the mounting base and the structure on the mounting base can be conveniently, rapidly and conveniently disassembled and taken down integrally, and the effect that the blood glucose test box body can be conveniently, independently and flexibly carried and used is achieved.
Owner:FUYANG PEOPLES HOSPITAL

Sharp tool box

The utility model discloses an edge tool box which comprises an outer box body and an inner box body, and an outer box cover is connected to the upper end of the outer box body in a clamped mode. The outer box cover is provided with a large storage hole corresponding to the inner box body, a plurality of water-drop-shaped clamping holes used for collecting syringe needles, a plurality of water-drop-shaped cutting holes used for collecting infusion apparatus needles and a slidable pressing plate corresponding to the water-drop-shaped cutting holes, and clamping rubber is arranged on the inner sides of the water-drop-shaped clamping holes. A first cutting blade is arranged on the inner side of the small-inner-diameter end of the water-drop-shaped cutting hole, so that the needle head can be rotationally detached, and the needle head of the infusion tube can be more quickly separated.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Anesthesia drug proportioning device

The utility model discloses an anesthetic medicine proportioning device relates to anesthetic medicine proportioning field, including mixed cup, the inside sliding joint of mixed cup has piston head, the below of piston head is equipped with the mixed cover, the upper surface fixed connection of piston head has the connecting pipe, and the middle part of piston head is equipped with the through -hole of communication with connecting pipe. Through adjusting the vertical rod and drive mixed cover far from piston head, make mixed cover enter liquid medicine, along with control adjusting vertical rod and drive mixed cover to and fro remove, the turbulence groove on mixed cover can fully mix liquid medicine, then lift adjusting vertical rod and make mixed cover close piston head be in the first state, after the syringe needle is stuck into the plug, can take out the mixed liquid medicine completely, until mixed cover and mixed cup bottom surface close, can fully mix liquid medicine fast, also avoided liquid medicine in the container wall, residue, improved practicality and use effect.
Owner:东方市人民医院(东方市医疗健康集团总医院)

Method for establishing stomach cancer liver metastasis PDX model

The invention provides an establishment method of a gastric cancer liver metastasis PDX model, and belongs to the technical field of PDX model establishment. The establishment method of the stomach cancer liver metastasis PDX model comprises the following steps: collecting stomach cancer tissues of a clinical patient, and preprocessing the stomach cancer tissues; cutting the gastric cancer tissue into gastric cancer tissue cubes and storing the gastric cancer tissue cubes; the method comprises the following steps: shaving and preparing abdominal skin of a mouse, disinfecting, transversely cutting the skin and peritoneum of the mouse by using sterile dissecting scissors, and exposing large-lobe tissue of the liver; a sterile syringe needle is used for creating a tiny wound on the liver lobe scratch; suturing the gastric cancer tissue cubes to the tiny wounds; and the peritoneum and skin of the mouse are sutured by absorbable surgical sutures. Compared with a gastric cancer liver metastasis model constructed by a cell line, the model obtained by the method for establishing the gastric cancer liver metastasis PDX model is closer to tumor tissue characteristics, genetic hereditary characteristics and tumor heterogeneity of a patient, and is more beneficial to individualized treatment or mechanism research of the patient.
Owner:GUANGDONG BIOTECHNOLOGY RESEARCH INSTITUTE (GUANGDONG PROVINCE EXPERIMENTAL ANIMAL MONITORING CENTER)

Tendon suture auxiliary device

The present invention discloses a tendon suturing auxiliary device, which belongs to the field of medical devices and includes: a surrounding structure, which is provided with a fitting channel, the patient's arm is fitted into the fitting channel, the surrounding structure has relative execution ends, and the execution ends form an operation area, and the operation area exposes the wound on the patient's skin surface; a traction structure, which includes a traction member and a clamping member, the ends of the traction member are respectively connected to the clamping member and the surrounding structure, and the clamping member always has a tendency to move to an initial position under the drive of the traction member; a positioning structure, which includes a positioning needle and a reset member, the surrounding structure has a positioning channel, and the positioning needle always has a tendency to move to a penetration position under the drive of the reset member, and when the positioning needle moves to the penetration position, it contacts the execution ends on both sides. Through the above-mentioned settings, the present invention can solve the problem of the risk of puncture when using a syringe needle to puncture the tendon, and the problem of unstable traction effect of hemostatic forceps clamping the wound edge.
Owner:THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV

Diameter-adjustable airway surface anesthesia tube for fiber bronchoscope

The utility model belongs to the technical field of medical instruments, and particularly relates to a diameter-adjustable fiber bronchoscope airway surface anesthesia tube which comprises a flexible plate, a locking block and an adapter, a through hole is formed in the position, close to the bottom, of the flexible plate, and the flexible plate can be wound in the radial direction to form a diameter-adjustable catheter. The catheter with the adjusted diameter can be inserted into the biopsy channel and shaped through the inner wall of the biopsy channel, the catheter is positioned when the catheter goes deep into the biopsy channel and the locking block makes contact with the biopsy channel, the adapter is connected with the top end of the catheter in an interference fit mode, and the adapter is used for being connected with a syringe needle to inject anesthetics. Therefore, according to the airway surface anesthesia tube with the structure, the traditional catheter structure with a fixed tube diameter is abandoned, the airway surface anesthesia tube is formed by winding the flexible plate, and the biopsy channel on the fiber bronchus is shaped, so that the suitability and the efficiency of the catheter in use are improved, and the defects in the prior art are overcome.
Owner:KARAMAY CENT HOSPITAL