46 results about "Arterial puncture" patented technology

The invention discloses an arteriovenous simulation method and device used for puncture teaching. According to the device, two latex tubes, namely a first latex tube and a second latex tube, are arranged on an emulational arm to respectively simulate an arterial blood vessel and a venous blood vessel, a diaphragm pump is used to extract emulational blood from a liquid storage container, and pumps the emulational blood to the first latex tube; after flowing through the first latex tube, the emulational blood enters the second latex tube through a throttle valve, and finally the emulational blood returns back to the liquid storage container through the second latex tube, so that a simulated blood circulation system is formed; a brushless DC motor is controlled to be started/stopped intermittently to drive the diaphragm pump, so that the first latex tube can shrink and expand intermittently to simulate human pulse beat; after the emulational blood flows through the throttle valve, expansion and shrinkage frequency reduces, even expansion and shrinkage disappear, so that the second latex tube can simulate a human venous blood vessel; when puncture teaching is needed, the two latex tubes on the emulational arm are respectively punctured by an injection syringe needle, so that arterial puncture and venipuncture simulation trainings are realized.

The invention belongs to the technical field of medical devices, and discloses an arterial remaining needle capable of displaying arterial pulsation. The arterial remaining needle comprises a stainless steel needle, a remaining needle, a pressure measuring catheter and a steel wire inner core, wherein the stainless steel needle comprises a needle body and a needle seat; a guide device is installed on the needle seat; the needle body is hollow; a hollow cavity is formed in the needle seat; the steel wire inner core enters the stainless steel needle through the guide device of the needle seat; the wall side of the needle body is provided with a blood return groove; the remaining needle consists of a remaining needle catheter, a catheter seat located on the tail end of the remaining needle catheter and a check valve placed in the catheter seat; the catheter seat is connected with the needle seat in a sheathing way; the catheter seat is hollow, and is provided with a side tube communicated with the catheter seat; the side tube is connected with the pressure measuring catheter; the check valve is located above the side tube; the blood return groove is located in an inner cavity formed by the catheter seat and the check valve; a hemostatic clamp is arranged on the pressure measuring catheter. According to the arterial remaining needle, the structure is simple; the use is convenient; the success rate of arteriopuncture cathetering can be effectively improved; the pollution caused by blood overflow is avoided; moreover, the pain and the economical burden of a patient are reduced.

The invention relates to an apparatus (40) for detecting moisture, which is intended for the use in an apparatus (B) for monitoring an access to a patient for a device by means of which a fluid is conducted to and/or removed from a patient via a hose line, in particular for monitoring the vascular access during an extracorporeal blood treatment, wherein blood of a patient is removed from the patient via an arterial hose line (5), which has an arterial puncture cannula (6), and is conducted back to the patient via a venous hose line (7), which has a venous puncture cannula (8). The apparatus according to the invention for detecting moisture is designed as a pad (22) which is made of a flexible material and is to be applied onto the patient's skin and which comprises an upper side (22A) facing away from the patient's skin and a lower side (22B) facing the patient's skin. The pad (22) comprises an opening (23) for the passage of fluid, in particular blood, and a moisture sensor (28) having contact elements (28D, 28E) for the connection of the same. The moisture sensor (28) is capable of detecting blood flowing through the opening (23) to the surface of the pad (22). The apparatus according to the invention is characterized in that the lower side (22A) of the pad (22) is impervious to fluid.

Methods are provided for obtaining and testing or analyzing a non-venous and non-arterial puncture human fluid or cell sample or human body fluid or cell sample to detect the presence of at least one infectious disease. The sample may be menstrual fluid, endometrial menstrual cells, umbilical cord blood, or amniotic fluid. Confirmatory testing of a corresponding arterial or venous blood sample for comparison to the test results for the non-venous and non-arterial human fluid or cell sample may be performed. The testing may comprise a screening test or a confirmatory test.

The invention relates to a multifunctional femoral artery puncture compressing hemostasis device and a control method thereof. The device comprises a fixing device and a control device, wherein the fixing device is provided with a waist fixing belt, a leg fixing belt, an air bag fixing belt, an air bag, a protective layer and a hot compress bag; the waist fixing belt and the leg fixing belt are arranged in parallel; the air bag fixing belt is arranged between the waist fixing belt and the leg fixing belt; a female adhesive buckle is arranged on one side of the air bag fixing belt; and the control device comprises a controller, a pressure sensor, a temperature sensor, a pulse sensor and an inflating and deflating pump. The device can be used for detecting and recording the body surface temperature of a patient in real time, alarming for reminding when the blood pressure, pulse and the temperature are abnormal, regulating the compression strength according to real-time blood pressure and pulse of the patient to enable the patient to feel comfortable, and observing the situation of a punctured point of the patient to facilitate intensive care of medical staff on the patient.

A sealed indwelling needle for arteriopuncture and taking blood is composed of a hollow steel needle, a sleeve-tube needle, a main tube with a blocking member in its middle position, a lateral tube with a manual valve, a transparent plastic tube, a blocking tube and the heparin cap on the ends of said main tube and lateral tube. Its advantages are no blood pollution and disease infection and high sealing effect.

The invention relates to an automatic arterial puncture device and a usage method of the automatic arterial puncture device, and belongs to the field of medical instruments. The system is composed of a B-ultrasonic probe, an automatic puncture instrument and an oxygen saturation detector. The B-ultrasonic probe, the oxygen saturation detector and the automatic puncture instrument are connected with a computer. The B-ultrasonic probe is provided with the automatic puncture instrument. The position of an artery is judged through two modes of the B-ultrasonic probe, wherein one mode is that the position corresponding to the maximum value of pulse sound of pulse beating is selected as an artery blood vessel; the other mode is that by pressing through the probe, the blood vessel which is not changed in shape as is shown on a screen is an artery. The computer recognizes and then positions the artery blood vessel, a puncture needle head punctures into the artery blood vessel, blood enters the puncture needle head, arterial blood flows into a needle tube, and the oxygen saturation detector detects whether the blood is arterial blood or not. When the level of the arterial blood in the special blood gas needle tube stops rising, the needle head is pulled off, and a puncture point is pressed in a pressurized mode to complete the whole puncture process. The whole puncture process is high in efficiency and speed, and obvious effects of improving puncture efficiency and relieving the puncture pain of a patient are achieved.

The invention relates to a venous puncture system based on pressure field detection, characterized by comprising: a plurality of infrared cameras fixed in a treatment chamber; a detection device having a variable shape detection face on which three-dimensional pressure sensors perpendicular to the detection face are arrayed on the detection face; a compression device to apply pressure to the localskin from the certain position of the proximal part of the vein under puncture; a master control device; a puncture device, wherein the master control device controls the puncture device according toa puncture spot, puncture angle and a puncture path to operate a puncture needle to puncture the skin, subcutaneous tissue and a vein in sequence. The venous puncture system herein provides precise venous positioning and automated artery puncturing, has no need for medical personnel's operation and saves medical resources; venous compliance can be calculated during detecting to eliminate venous disorders; the specific positions of the venin and puncture needle can be calculated during puncturing, misopeartion is avoided, and postoperative complications are decreased.

The invention discloses a femoral artery puncture point aeration pressing type tourniquet which comprises a waist fixing belt and a groin fixing belt, wherein the waist fixing belt is horizontally arranged and is fixed at the waist of a human body in a surrounding manner; the upper end of the groin fixing belt is connected with the middle of the waist fixing belt; the lower end of the groin fixingbelt extends downwards in an inclined manner; the groin fixing belt is fixed at the root of a thigh on the puncture side of the human body in the surrounding manner; a transparent pressing airbag isarranged corresponding to a femoral artery puncture point of the human body on the groin fixing belt; the transparent pressing airbag comprises a hard plate on an outer side, a net-shaped elastic layer on an inner side, and a transparent airbag wrapped between the hard plate and the net-shaped elastic layer; two ends of the hard plate are respectively connected with the groin fixing belt; the periphery of the net-shaped elastic layer is fixedly connected with the periphery of the hard plate; and a pressure gauge is arranged on one side of the transparent airbag. The femoral artery puncture point aeration pressing type tourniquet has the advantages that a very good hemostatic effect is achieved, convenient and rapid operation can be implemented, and puncture parts can be conveniently observed.

The invention relates to a venous puncture system based on temperature field detection. The system is characterized by comprising a treatment chamber, a plurality of infrared cameras, a detection device, a pressurization device, a main control device and a puncture device, wherein the indoor temperature of the treatment chamber is maintained at the set temperature; the plurality of infrared cameras are fixedly in the treatment chamber; the detection device has a detection surface with variable shape; temperature sensors are in matrix arrangement on the detection surface; the pressurization device is used for exerting the pressure on the local skin in a certain position at the proximal part of the puncture vein; the main control device controls the puncture device to operate the puncture needle to sequentially puncture the skin, the subcutaneous tissue and the vein according to the puncture point, the puncture angle and the puncture path. The vein precise positioning and the arteriopuncture atomization can be realized by the invention. The medical personnel operation is not needed; medical resources are saved; in the detection process, the venous compliance can be calculated, so that the vein lesion is avoided; in the puncture process, the concrete position of the vein and the puncture needle can be calculated; wrong operation do not occur; the postoperative complications are reduced.

The invention provides an arterial fixation and compression device and method. The arterial fixation and compression device includes a support pad for supporting an arm, a compression band, a compression head which can slide along the length of the compression band, a first tightness adjustment mechanism arranged inside the support pad and a controller; the controller controls the first tightnessadjustment mechanism to tighten or relax the compression band; the compression head includes an upper end part and a lower end part, a through hole is formed in the upper end part, and the compressionband penetrates through the through hole; when the compression band is tightened, the lower end part of the compression head applies pressure to a point to be compressed on the arm, and the controller adjusts the pressure by controlling the first tightness adjustment mechanism to adjust the tightening degree of the compression band. The arterial fixation and compression device can flexibly adjustthe compression position, the pressure implemented at the point to be compressed is adjusted by adjusting the tightness degree of the compression band, and implement is easy and simple; the pain of apatient is reduced, the comfort in the puncture process, the surgical process and the compression process is increased, and arterial puncture success rate and surgical safety are improved.

The invention discloses a venipuncture hemostatic tamper. A medical water absorbing material is made into a cylinder which is transversely adhered to an elastic tape. The venipuncture hemostatic tamper can automatically pressurize on a venipuncture needle hole for hemostasis to solve the problem of inconvenience brought by locally pressing the needle hole with fingers after needle withdrawing of superficial venipunture/superficial arteriopuncture. The venipuncture hemostatic tamper is used for automatically pressurizing the needle hole for the hemostasis after the needle withdrawing of the superficial venipunture/superficial arteriopuncture. The venipuncture hemostatic tamper has the advantages of simple manufacture, low cost, reasonable design, no untoward effect of the used material on a human body, and capability of undergoing germicidal treatment.

Provided is an arterial puncture practice device which is mainly composed of a puncture module, a liquid storage capsule and a pedestal. The internal part of the puncture module is internally provided with a simulated blood vessel. The two ends of the simulated blood vessel are provided with connectors which are connected with connecting pipes of the pedestal in a buckling way. The liquid storage capsule is an elastic deformable capsule made of rubber material. Two connecting pipes stretch out of one end of the capsule, and the pipes are internally provided with a non-return valve respectively. The pedestal is provided with a switch which is used for managing liquid in the liquid storage capsule to flow out of the liquid storage capsule into the puncture module via the connecting pipes. The puncture module, the liquid storage capsule and the pedestal are connected via the connecting pipes. The liquid storage capsule is enabled to continuously deform to simulate heartbeat of a human body so that the arterial pulse effect is generated by the simulated blood vessel in the puncture module, and certain scenes can be simulated by students independently for one-to-one training. Various arterial puncture skills can be timely mastered.

The invention relates to the technical field of arterial puncture, and specifically relates to a disposable arterial blood gas puncture patch. The puncture patch can display correct arteriovenous puncture points and is convenient for medical staff to blindly collect arterial blood gas, so that the peripheral blood vessels and nerves of patients can be prevented from being stabbed by mistake. The medical staff can remove a non-toxic sealed protective film, tightly attach a silicone skin patch to the skin of a patient and wind four secondary fixation binding bands on the body of the patient to fix with four fixing velcro tapes; sterilized strip cotton disinfects the surface of the skin in a blood gas puncture strip hole; and two color-changing induction coatings perform induction change through the skin surface temperature and arterial blood vessel temperature of the patient, and as the skin surface temperature is relatively lower than the arterial blood vessel temperature, the color-changing induction coating located at the upper part of the arterial blood vessel can become colorless and the color-changing induction coating located at the upper part of skin surface can turn red, sothat the medical staff can find the accurate position of the arterial blood vessel in the blood gas puncture strip hole by comparing the two color-changing induction coatings.

The invention provides an inflatable balloon arteria compressing device. The inflatable balloon arteria compressing device comprises a bearing plate and a puncture unit, the bottom of the bearing plate is provided with a balloon groove inside which a balloon is arranged, the inside of the balloon is provided with a high-pressure gas cylinder, the bearing plate is provided with a clamping unit extending towards the high-pressure gas cylinder, the clamping unit is provided with a puncture nail groove, and when the puncture unit is inserted into the puncture nail groove and achieves expansion fit, the opening of the high-pressure gas cylinder can be pierced to rapidly inflate the balloon. The inflatable balloon arteria compressing device assists a medical worker to compress an arterial puncture bleeding spot, and compared with simple finger compression, can greatly enlarge the effective arteria compressing area, ensure labor-saving, safe and reliable compression and reduce the risk of errhysis of the arterial puncture spot. According to the inflatable balloon arteria compressing device, gas volume in the balloon can be adjusted according to practical conditions, and after the balloonis fixed, the pressure of a pressed position can be adjusted by adjusting the gas volume in the balloon, so that risks of complications caused by excessive compression such as arterial ischemia and artery thrombosis can be reduced.

Methods and apparatuses for closure of vascular punctures or other openings in bodily tissues. The apparatuses and methods described herein are configured for everting a portion of tissue around a puncture site for wound closure on the external surface of the wound. For example, the tissue eversion apparatus may be configured for drawing up a portion of a vessel surrounding a venous or arterial puncture and orienting the inner surface of the vessel at least partially outward so that a closure element may be placed around the inverted region on the exterior surface of the vessel. In some embodiments, the devices are bioabsorbable.

The invention provides an in-vitro distal blood-supply device for free skin flap for plastic surgery. The device comprises a vein puncture needle, a first catheter, a precision peristaltic pump, a second catheter, a venous skin flap anastomosis needle, an arterial puncture needle, a third catheter, a three-way head, a fourth catheter, a precision syringe pump, a replaceable filter cartridge structure, an arterial skin flap anastomosis needle, a heating box, a circulating copper tube, a disassembly tube, a constant temperature water tank, a water pump, a disassembly and fixing belt structure, an auxiliary traction storage board structure, an auxiliary support plate structure, a fifth tube and a sixth tube, and the vein puncture needle is inserted at the upper end of the first catheter. Thedevice has the beneficial effects that through the arrangement of the replaceable filter cartridge structure, when a plug-in board frame is pulled or pushed, different filter screens can be correspondingly connected with a communication tube, during use, the filter screen can be replaced for use, and the influence of easy obstruction of the single filter screen is avoided.

The invention discloses a novel clinical compression quick-hemostasis device for the cardiology department and relates to the technical field of medical apparatuses and instruments. The device comprises a baseplate, a supporting plate is fixedly connected to the upper surface of the baseplate, and a fixing plate is fixedly connected to the right side, close to the upper end of the supporting plate, of the supporting plate; a linear actuator is fixedly connected to the lower surface of the fixing plate, and a mobile plate is fixedly connected to a push rod of the linear actuator. Through structure cooperation, the device has the advantages that through a mechanical transmission mode, a hemostasis cotton ball can automatically compress the arterial puncture part, and the hemostasis effect isachieved. The hemostasis cotton ball stained with blood can directly fall into a tray, the situation is avoided that medical personnel are in contact with the blood, and the problems are solved thatin the prior art, when medical personnel manually press the arterial puncture part, since the pressing time is usually too long, medical personnel are easily overtired, the hand pressure is insufficient, and time and labor are wasted during operation.

The invention discloses an invasive arterial blood pressure monitoring device. The invasive arterial blood pressure monitoring device comprises a pressure connecting pipe filled with a pipe flushing liquid and provided with a switch, a continuous flushing system and an electronic monitor, wherein one end of the pressure connecting pipe is connected with an artery puncture needle, and the other end of the pressure connecting pipe is connected with the electronic monitor; a three-way joint A, a liquid extracting device and a transducer are sequentially arranged from the end, connected with the artery puncture needle, of the pressure connecting pipe to the end, connected with the electronic monitor, of the pressure connecting pipe; and the transducer is connected with a pressurizing bag. When the invasive arterial blood pressure monitoring device is used for invasive arterial blood pressure monitoring, according to arterial blood pressure waveforms on the electronic monitor, digital guidance of operation can be realized, and whether the artery puncture needle punctures in place is judged, so that the puncture success rate is improved and the puncture time is shortened.

The invention discloses a pediatric watch type arterial puncture compression hemostatic patch. According to the pediatric watch type arterial puncture compression hemostatic patch, the professional and technical product which is suitable, comfortable, small in wound, convenient to use, quick and low in price is provided for infant patients. Time is saved for doctors for medical operation, and timeis won for rescuing the patients.

The invention discloses a coronaryartery blood flow reserve fraction measuring system, and belongs to the field of medical instruments. Thecoronaryartery blood flow reserve fraction measuring systemstructurally comprises an arterial puncture needle, a pressure sensor, a calculation and display device, the rear end of the arterial puncture needle and the pressure sensor are connected through a catheter, the pressure sensor iselectrically connected with the calculation and display device, and the calculation and displaydevice is used for calculating and displaying coronary arteryblood flow reserve fraction FFR. Compared with the prior art, thecoronaryartery blood flow reserve fraction measuring system can accurately measure the specific numerical value of thecoronaryartery blood flow reserve fraction in a bypass surgery, and the selection of a target blood vessel during the operation is more accurately guided, bridge blood vessels are built reasonable, accurately and safely,and a good promotion and application value is achieved.