469 results about "Blood drawing" patented technology

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A transparent or translucent flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A transparent or translucent flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

An intravenous catheter introducing device includes a needle cannula with a rear connecting end that is forced by a needle retracting member to displace relative to a barrel between a position of use to permit a needle tip to pierce a patient's vein, and a disposal position to permit retraction of the needle tip into the barrel. A tubular outlet member is disposed downstream of the rear connecting end, and is mounted radially and outwardly of the barrel. A flashback member can be connected to and in fluid communication with the tubular outlet member so as to permit the user to check whether a tubular catheter has been successfully introduced into a target vein of the patient. In addition, the flashback member can provide a blood drawing function to facilitate flow of blood into the flashback member.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage or be part of a continuous cannula extending through the inner fluid passage. A guide tube including a well may be connected to the central body. A second cannula may extend into the guide tube from the well. A flexible sleeve may extend into the guide tube from the well and surround at least a tip portion of the rear cannula or a tip portion of the second cannula. A venting member may be provided near the juncture of the well and the flexible sleeve. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of sample vial guide tube, or an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body of the flexible sleeve may be transparent or translucent to permit the detection of fluid within the inner passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable blood-impermeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable blood-impermeable flexible sleeve acts as a venting member. The venting member permits the passage of air through it, and is substantially impermeable to liquids, such as blood. The flexible sleeve may be comprised of two types of material, a first material which is air-impermeable and a second material which is air-permeable blood-impermeable.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a guide tube for receiving a blood sample container and which may be connected to a needle for drawing blood from a lumen. A rear cannula may extend into the guide tube from the well. A flexible sleeve may be mounted on a barb connected to the guide tube. The flexible sleeve may extend into the guide tube from the well and surround at least a tip portion of the rear cannula. A venting member may be provided between the interior of the sleeve and the ambient. The venting member may permit air to vent from the flexible sleeve without venting blood, so that flash can be detected. In some, but not all, embodiments, one or more passages may be provided in guide tube to facilitate the venting of air from the flexible sleeve.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable flexible sleeve may act as a venting member positioned between the rear cannula and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

An autonomic nervous activity monitor capable of predicting occurrence of abnormal reaction depending on autonomic nervous activity and used for medical practice and the like is provided. A blood component collecting apparatus 100 carries out frequency analysis to a pattern of heartbeat which is acquired by an ECG 300 from a donor, and calculates a high frequency component value [msec2] defined as an indicator for parasympathetic activity and a ratio value of a low frequency component to the high frequency component defined as an indicator for sympathetic activity to detect a change in these values on a time-series base. When a judgment circuit 204 predicts that abnormal reaction may occur to a donor after blood collection operation is started, a controller 200 controls a pump 9 to decrease a blood drawing or blood returning speed, or, to stop blood drawing or blood returning operation.

A bag connection comprises a first bag, a tube having a blood-drawing needle at the front end, a plurality of second bags, tubes for connecting the first and second bags,.and tubes and branch connectors for connecting the second bags to each other. On the other hand, a filter unit includes a filter, and a tube connected at opposite ends thereof to the inlet and outlet of the filter. The tubes of the bag concatenation and the tube of the filter unit have respective markers attached thereto. With these markers used as marks, both tubes are aseptically connected by a tube aseptic connection device, thereby incorporating the filter unit into an intermediate portion of a tube of the bag concatenation.

A skin puncture device for use as an intravenous catheter or blood collecting needle set is provided with a mechanism for protection against needle injury and access to fluid passageway during insertion. The assembly includes a flexible extension tube connected to the proximal end of the needle housing for use in difficult insertion sites. The extension tube provides access for fluid injection so that the passageway and needle can be filled with fluid prior to needle / catheter insertion, allowing diffusion of blood to provide evidence of successful venipuncture and allowing the infusion of small amounts of fluid into the vein to facilitate catheter advancement. The locking mechanism consists of two apertures in the needle housing and two pairs of needle guard locking tabs which selectively engage when the needle guard is pushed forward to its fully extended position upon completion of insertion or blood drawing, encapsulating the length of the needle.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A compound represented by the general formula (1): Q1-Q2-T0-N(R1)-Q3-N(R2) -T1-Q4   (1) wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6-membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 is a group in which Q5 is an alkylene group having 1 to 8 carbon atoms, or the like; and T0 and T1 are carbonyl groups or the like; a salt thereof, a solvate thereof, or an N-oxide thereof. The compound is useful as an agent for preventing and / or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.

Disclosed is an automatic pulse pressing device for blood drawing. The automatic pulse pressing device for the blood drawing comprises a housing (1), medical latex tubes (4), two rotation wheels (5), a motor (6), sensors (7) and a control system (8), wherein an arm placing through hole (2) and a positioning groove (3) are formed in the housing (1), the medical latex tubes (4) are crosswise fixed in the positioning groove (3), two ends of each medical latex tube (4) are respectively fixed on the two rotation wheels (5), the two rotation wheels (5) are respectively connected with the motor (6), and simultaneously rotate, one of the two rotation wheels (5) can be fixed, the other rotation wheel can be rotated, the sensors (7) are installed on the medical latex tubes (4), and can not touch the rotation wheels (5) within the maximum stroke, and the motor (6) and the sensors (7) are all connected onto the control system (8). Simultaneously, the automatic pulse pressing device for the blood drawing is further provided with a collection point indication lamp (9), and the collection point indication lamp (9) is fixed on the upper portion of the front end of the housing (1) through a hose (10). The automatic pulse pressing device for the blood drawing is simple in structure and strong in practicability, achieves automatic pulse pressing for an arm which is placed in the arm placing through hole (2), can reduce workloads and decrease the number of work procedures for nurses, and quickly and accurately finds out positions of blood vessels, and thereby improves medical care work efficiency and quality.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable flexible sleeve may act as a venting member positioned between the rear cannula and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

The invention discloses a blood-drawing auxiliary device for the internal medicine of hematology. The blood-drawing auxiliary device comprises a base plate, wherein a control switch is arranged on the front side surface of the base plate, a fixed base is fixed to the left side of the upper surface of the base plate, a hinge base is fixed to the upper surface of the base plate on the right side of the fixed base, and a hinge plate is hinged to the upper end part of the hinge base. The blood-drawing auxiliary device for the internal medicine of hematology is reasonable in structural design, and easy and convenient to use, the forearm of a patient is placed on a fixing cushion and then the hand of the patient holds a handle, so that the unconscious shaking during the blood drawing process can be prevented, the work difficulty in blood-drawing examination of a doctor is reduced, and the discomfort of the patient is alleviated; a drawer can be used for placing medicinal cotton and is close to the medical staff, thus taking is convenient, the vein belt can be automatically bound and pressed, the hinge plate rotates under the driving of an electric telescopic rod, so that a vein-pressing belt is tightened to bind the arm of the patient, therefore, convenience is provided for blood drawing, the work efficiency in blood-drawing examination of the doctor is greatly improved, and the workload of the medical staff is alleviated.

A compound represented by formula (1):Q1-Q2-T0-N(R1)-Q3-N(R2)-T1-Q4  (1)[wherein R1 and R2 are hydrogen atoms or the like; Q1 is a saturated or unsaturated, 5- or 6-membered cyclic hydrocarbon group which may be substituted, or the like; Q2 is a single bond or the like; Q3 represents the following group:(wherein Q5 is an alkylene group having 1 to 8 carbon atoms, or the like); and T0 and T1 are carbonyl groups or the like], a salt thereof, a solvate thereof, or an N-oxide thereof.The compound is useful as an agent for preventing and / or treating cerebral infarction, cerebral embolism, myocardial infarction, angina pectoris, pulmonary infarction, pulmonary embolism, Buerger's disease, deep venous thrombosis, disseminated intravascular coagulation syndrome, thrombus formation after artificial valve or joint replacement, thrombus formation and reocclusion after angioplasty, systemic inflammatory response syndrome (SIRS), multiple organ dysfunction syndrome (MODS), thrombus formation during extracorporeal circulation, or blood clotting upon blood drawing.

The invention provides a three-degree-of-freedom front arm blood collection robot and solves the defect of manual needle insertion for blood drawing at present. The three-degree-of-freedom front arm blood collection robot comprises a worktable, wherein a first drive arm, a second drive arm and a needle inserting mechanism are arranged on the worktable, the first drive arm and the worktable form rotatable connection through a first joint, the second drive arm and the first drive arm form rotatable connection through a second joint, the needle inserting mechanism and the second drive arm form rotatable connection through a third joint, the needle inserting mechanism comprises a rectangular frame, a driving motor, a ball screw, a guide sliding rail and a movable sliding table, the driving motor is connected with the ball screw, bearings are sheathed between the two ends of the ball screw and the rectangular frame, a screw hole and a sliding hole are formed in the movable sliding table, a nut is connected into the screw hole in a penetrating manner, the nut is sheathed on the ball screw to form thread connection, a guide sliding barrel is connected into the sliding hole in a penetrating manner, the guide sliding barrel is sheathed on the guide sliding rail to form sliding connection, and the side part of the movable sliding table is fixedly connected with a blood drawing needle. The three-degree-of-freedom front arm blood collection robot adopts mechanical blood drawing, the needle inserting accuracy is high and the safety is high.

The multifunctional safe phlebotomizing syringe includes one hollow needle tube with one eccentric opening in the top and one guide slot in the side, one inner sleeve inside the needle tube with one pressing board and one needle seat, and one double-L shaped needle fixed to the inner sleeve with lower tip in the axis of the needle tube. The present invention may be combined with one vacuum bloodsampling cup, and by means of the said structure the needle may be fixed inside the needle tube or detached conveniently to protect medical staff and protect environment.

The invention discloses a blood drawing device, which comprises a test tube clamp part which clamps a blood-containing test tube, a blood lancet head clamp component which clamps a blood lancet head to move so as to insert into the test tube, and a drive component which fixes the test tube clamp part, and drives the test tube clamp part to clamp the test tube to move so as to shake the blood in the test tube. In addition, the invention also discloses an automatic blood drawing system. The device has the advantages of simple structure, practicability and easy operation; moreover, the device achieves blood drawing and blood shaking at the same time.

The invention belongs to the field of medical apparatuses, and discloses a device for clamping a blood taking needle component. A fixture comprises a blood taking needle fixing module, a tail needle fixing module, a test tube fixing module, a middle shaft and a mounting platform, multiple buckles are arranged at the surface of the external circumference of the blood taking needle fixing module, the needle heads of blood taking needles face upwards and are vertically fixed to the buckles, the tail needle fixing module comprises an upper plate, a lower plate and relays, tail needles are fixed to the portion below the relays, a test tube in the test tube fixing module is placed between an outer sleeve and an inner sleeve, all the fixing modules are installed on the middle shaft from top to bottom in a sleeving mode, the mounting platform comprises a base, a rotary platform and a motor, the rotary platform is connected with the middle shaft, the motor drives the rotary platform and the middle shaft to rotate simultaneously to drive all the fixing modules to rotate, and in this way, replacement of the blood taking needle component is achieved. According to the device for clamping the blood taking needle component, mixing of blood samples in a blood drawing process is avoided, the frequency of constantly replacing needles in the blood drawing process is reduced, the blood drawing time is shortened, the work intensity of medical work staff is relieved, and the work efficiency is improved.

The invention discloses a blood drawing auxiliary device for departments of hematopathology and a method for applying the blood drawing auxiliary device. The blood drawing auxiliary device comprises atank. The front end surface and the rear end surface of the tank are communicated with each other, a second line roller is fixedly connected with the rear end surface of a first line roller, a thirdline roller is fixedly connected with the side, which is far away from the first line roller, of the second line roller, a rotary rod is fixedly connected with a certain side of each of the first lineroller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the two rotary rods are positionedat the same horizontal altitude, a support plate is movably connected with the end, which is far away from the second line roller, of each rotary rod and is fixedly connected to the top of the tank, aflat spiral spring is arranged on a certain side of each of the first line roller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the top of the end, which is far away from a pedal, of a third rope penetrates the top of the tank, and the third rope is wound on the third line roller. The blood drawing auxiliary device for the departments of hematopathology and the method have the advantages of high efficiency, simplicity in operation and the like.

The invention discloses a blood drawing pen capable of rotatably returning a needle, which comprises a needle returning device, a hitting device and a depth regulating device, wherein the hitting device comprises a pen holder with an inner cavity and a needle rod capable of sliding in the inner cavity, one end of the hitting device is connected with the needle returning device used for applying apre-ejection force, and the other end of the hitting device is connected with the depth regulating device used for regulating the ejection depth. The blood drawing pen is characterized in that the needle returning device comprises a rotating member with an inner cavity and a transmission member capable of sliding in the inner cavity of the rotating member, one end of the needle rod is sleeved with an ejection spring which passes through the inner cavity of the pen holder and the inner cavity of the rotating member to be fixedly connected with the transmission member, wherein one end of the rotating member and the pen holder are connected and can rotate relatively, the other end of the rotating member is provided with an incline rail formed by adopting an incline, and the outer wall of thetransmission member is provided with a lug boss capable of sliding on the incline rail. The blood drawing pen is simple in operation; and parts of the whole blood drawing pen are connected in a convex and concave matching manner without gaps and exposed parts, and are easy to assemble, therefore, production cost is effectively lowered.

The invention belongs to the technical field of test paper and particularly relates to a test paper for urine tyrosine. The test paper for urine tyrosine comprises a support block, a tyrosine detection block, a vitamin C detection block and a colourimetric card. The test paper has the advantages that (1) the tyrosine is catalyzed by using a biological compound enzyme to generate specific chromogenic reaction and is not disturbed by other substances of the urine except for vitamin C, so that the result is accurate; (2) the test paper is free of toxicity or corrosivity and is safe in use; (3) chemical substances contained in the test paper all are biodegradable and free of pollution to the environment; and (4) the dosage form is the test paper, so that the test paper is directly wetted by the urine during urination, so that the test paper is very convenient to use. In addition, sampling and operation are simple and fast during urine tyrosine testing, the pain of blood drawing and the opportunity of cross infection are eliminated, a special instrument is not needed and the cost is low, so that the test paper is suitable for popularization in cancer survey in primary hospitals and remote mountain areas.

The invention discloses an ectopic pregnancy and pregnant days colloid gold detection agent and manufacturing method thereof used for the problem of fast detection for pregnancy, comprising a piece of detecting test paper and urine sample treatment solution; wherein, the detecting test paper consists of a base plate, a cellulose nitrate membrane, a gold label anti-Beta HCG monoclone antibody layer, an Alpha-HCG monoclone antibody line, a sheep anti-rat polyclonal antibody line, an absorbing pad and a sample pad; the matching composition of the urine sample treatment solution is that: 12.5 to 18.0 portions of disodium hydrogen phosphate dodecahydrate, 1.2 to 1.7 portions of sodium dihydrogen phosphate dihydrate, 40.0 to 48.0 portions of sodium chloride and 4600 to 5300 portions of distilled water; the ectopic pregnancy and pregnant days colloid gold detection agent and manufacturing method of the invention are characterized by fast and simple detection, the operation of blood-drawing detection for 2 to 6 hours can be replaced by 2 to 3 minutes with time-saving, manual-saving and cost-saving; besides, the ectopic pregnancy and pregnant days colloid gold detection agent and manufacturing method thereof have the advantages of detecting ectopic pregnancy and pregnant days in a semiquantitative way, etc., and can be used for external detection of the pregnant condition and artificial abortion and assisted diagnosis.

The invention discloses a blood drawing pen with a needle withdrawing function and an assembling method. The blood drawing pen mainly comprises a pen loop, a percussion needle withdrawing structure, ablood drawing needle, a tail cap and a pen cap. A guide sleeve is inserted into the pen loop. A limiting structure for controlling the advancing distance of an inner core is arranged in the guide sleeve. The inner core comprises a needle seat part for fixing the blood drawing needle, and the tail end of the needle seat part is connected with an inner core arm for being sleeved with an elastic part. A needle withdrawing key is arranged in the pen loop. The needle withdrawing inner core is in an L shape, and comprises a second convex rib and a hanging table limited between a first clamping table and a second clamping table. The elastic part comprises a transmitting spring, a first reset spring and a second reset spring with which the inner core arm is sleeved. When needle withdrawing is carried out after blood drawing, the percussion needle withdrawing structure is arranged in the blood drawing pen, the tail cap arranged at the rear end of the blood drawing pen pushes the percussion needle withdrawing structure to advance, thus, the blood drawing needle is pushed to be separated from the needle seat part, blood drawing and needle withdrawing processes are continuous, and potential safety hazards are effectively avoided.

An autonomic nervous activity monitor capable of predicting occurrence of abnormal reaction depending on autonomic nervous activity and used for medical practice and the like is provided. A blood component collecting apparatus 100 carries out frequency analysis to a pattern of heartbeat which is acquired by an ECG 300 from a donor, and calculates a high frequency component value [msec2] defined as an indicator for parasympathetic activity and a ratio value of a low frequency component to the high frequency component defined as an indicator for sympathetic activity to detect a change in these values on a time-series base. When a judgment circuit 204 predicts that abnormal reaction may occur to a donor after blood collection operation is started, a controller 200 controls a pump 9 to decrease a blood drawing or blood returning speed, or, to stop blood drawing or blood returning operation.

The invention provides a children examination and treatment bed. The children examination and treatment bed comprises a bed body. The bed body comprises a trunk supporting board, a head and neck supporting board, two upper limb supporting boards and two lower limb supporting boards. The head and neck supporting board is connected to one end of the trunk supporting board. The two upper limb supporting boards are connected to two opposite sides of the trunk supporting board respectively in a rotary mode. The two lower limb supporting boards are connected to the end, away from the head and neck supporting board, of the trunk supporting board in a rotary mode. The upper limb supporting boards and / or the lower limb supporting boards can rotate around a shaft in the vertical direction relative to the trunk supporting board. The trunk supporting board is provided with a trunk restraint strap. The head and neck supporting board is provided with a head restraint strap. Each upper limb supporting board is provided with an upper limb restraint strap. Each lower limb supporting board is provided with a lower limb restraint strap. The children examination and treatment bed can fix the limbs of children and facilitate CT examination, infusion, blood drawing and the like.