General Specification 1. Main Features  Operationg SyetemWindow 7 Monitor 12.1 inch LED high-resolution monitor Scanning ModeB, B/B, 4B, B/M, M, 3D Image Reconstruction KeyboardBack-lit Silicone Keyboard (option) Cine LoopUp to 1024 frames Gain0-255dB TGC8 segment Scanning DepthUp to 240mm Dynamic Range20-150dB Pseudo-color40, or customized Body Marking140 Focus4 Magnification0.8-6.0 Probe Connector2 LanguageChinese/English/Spanish Matching PrinterLaser/Vedio/Inkjet/Thermal printer Peripheral PortUSB, DICOM3.0, RS232, VGA, VCR, PAL-D Measurement & CalculationB-mode: Distance, Perimeter, Area, Volume, Angle, Histogram, Cross Section, Hip Joint Angle M-mode: Heart Rate, Time, Gradient Image Processing TechnologiesTHI, Pre-process, Post-process, Dynamic Range, Contrast, Frame Correlation, Average Line, Edge Enhancement, Black-white Change over, Gray-scale Transformation&Adjustment, Brightness, Gamma Correction  2. Applications Abdominal(Liver, Gallbladder, Spleen, Kidney, Pancreas) Gynecology(Uterus, Cervix Uterus, Endometrium, Ovary, Ovarian Follicle, Hydatoncus, Enclosed Mass) Obstetric(AC, BPD, CRL, FL, THD, GS, OFD, HUMERUS, TIDIA, ULNA, HC, TAD, APTD, FTA, AFI, Analytic report of fetus and the growth curve) Cardiology(LV, LV Function, Aorta, Mitral, Valve) Urology(Left Renal Volume, Right Renal Volume, RUV, Prostate kidney) Small Parts(Ophthalmology, Thyroid, Jaw and Face) 3. Standard Configuration Main system unit, 3.5MHz Convex probe, Lithium battery, Power adapter, Carrier suitcase, User manual and disc 4. Optional Items Biopsy Bracket 5. Probes Selection 3.5 MHz Convex Probe (3.5-14MHz variable frequency ) 7.5 MHz Linear Probe (3.5-14MHz variable frequency ) 7.5 MHz Transvaginal Probe (3-10MHz variable frequency) 5.0 MHz Micro-Convex Probe (2-6MHz variable frequency) 7.5 MHz Rectal Probe(80 elements) 6. Advanced Technologies PC platform Full Digital Ultrasonic Kernel Engine One Touch Optimizer Tissue Harmonic Imaging 3D Imaging Reconstruction DICOM 3.0 Packaging & Delivery Packaging Details: Aluminum Case+Box Package Net Weight: 2.5kg Gross Weight: 7kg Package Size: 370*295*170mm Delivery Time: 5-10 working days Warranty Two years for main unit (One year warranty for probes) Please let us know your specific request. We would like to recommend you the most suitable model based on your information.
Specification item value Brand Name for dell Processor Manufacture Intel Memory Capacity 16GB Processor Type Intel I7 Graphics Card Type Integrated Card Hard Drive Capacity 512GB Screen Size 14.1" Display Ratio 16:9 Display resolution 1920x1080 Plugs Type Other Hard Drive Type SSD Video Memory Type GDDR3 Operating System Windows 10pro Processor Main Frequency 2.66GHz Processor Core Quad Core PPI 132 Refresh Rate 65HZ WLAN WiFi 802.11 a/b/g Keyboard language English Private Mold yes Appearance Slight scratch Grade A+ ( Almost new ) Accessories With third party accessories Model Number latitude e7490 Condition Original Refurbished Products Status Official Refurbished Quality 99% New/98%new/95%new Type Netbook Notebook Keyword Second Hand Refurbished Laptop Computer Style Ultrathin Portable Hot sale with Labtop Selling point Ready Port 3*USB3.0 Network Unlocked Model HP Probook 840 G5 CPU Intel Core i5 8th Graphics AMD Radeon RX 540 Display pixel 1366*768(14.1'') Camera Dedicated Card Operating System Windows10 Battery 3-cell lithium battery Colour Silver Size 326-234*17.9mm Weight 1.48kg Hard disk capacity 8G+256GB Interface 2xUSB, USB Type-C hdmi Headphone/Microphone 2 in 1 RJ45 SIM card slot Expansion dock interface
Key attributes Other attributes Brand Name All Brands Available Processor Manufacture custom Memory Capacity custom Processor Type custom Graphics Card Type custom Hard Drive Capacity 200GB,500gb, othres Screen Size Other Display Ratio 15:09, other Display resolution 1280*800, other Plugs Type US,UK,JP, EU, others Hard Drive Type SSD, custom Video Memory Type Hbm2,other Operating System Window- 10, other Processor Main Frequency 2.10ghz, other Processor Core Hexa Core PPI 261 Refresh Rate 165Hz WLAN / Keyboard language English, other Private Mold no Appearance No scratch Grade A+ ( Almost new ) Accessories Without accessories Model Number All Models Available Product name Used Laptops Packaging and delivery Packaging Details as per customer's want Port Bangkok Package Type: as per customer's want attribute-list Supply Ability 100000 Piece/Pieces per Month Product information Model HP Probook 840 G5 CPU Intel Core i5 8th Graphics AMD Radeon RX 540 Display pixel 1366*768(14.1'') Camera Dedicated Card Operating System Windows10 Battery 3-cell lithium battery Colour Silver Size 326-234*17.9mm Weight 1.48kg Hard disk capacity 8G+256GB Interface 2xUSB, USB Type-C hdmi Headphone/Microphone 2 in 1 RJ45 SIM card slot Expansion dock interface Packaging and delivery Packaging Details Note: Neutral brown craft box for each unit K=A strengthens the export standard outer box Single package size: 41*9.5*36.4 cm FCL size: 61.5*43*38.5 cm 6/box Box weight: (depending on item) Package Type: Note: Neutral brown craft box for each unit K=A strengthens the export standard outer box Single package size: 41*9.5*36.4 cm FCL size: 61.5*43*38.5 cm 6/box Box weight: (depending on item)
Features: Image Mode: B, 2B, 4B, M, B/M, CDFI, CDE, CCD, PW, CW. Advanced Technology: 3D image supported. One key image optimization: various of inner checking types/checking types edition and creation/making superior image by pressing of doctor according to different checking types. English guide system: real time notice of operation steps, helping doctor get familiar with the operation of device quickly. Auto freezing protection of the probe: auto freeze the probe in the presetting time, lengthen the life of the probe. English report system: record the calculating parameters automatically, output English report directly; make the inspection steps much more efficient. Expansion port: Video port, S-Video port, RS-232 port, USB2.0 port, VGA port, DICOM3.0 port Probe supported Convex probe, vaginal probe, linear probe, phrased array probe; micro convex probe
General specification 1. Main features Operationg syetemno Monitor 10.4 inch crt monitor Scanning modeb, 2b, 4b, b/m Keyboardback-lit silicone keyboard (option) Cine loopup to 256 frames Gain0-100db Tgc8 segment Scanning depthup to 240mm Dynamic range0-100db Pseudo-color8 colors Body marking30 Focus4 Magnification1.0, 1.2, 1.5, 2.0 Probe connector2 Languagechinese/english Matching printerlaser/vedio/inkjet/thermal printer Peripheral portusb, vga, dicom3.0, rs232, video out Measurement & calculationdistance, c/a, hr and pw(obstetrics:bpd, crl, ofd, ttd, fl, hc, ac) measurement Image processingdynamic range, dsc, the line average turnover, contrast, edge enhancement, gray-scale transformation&adjustment, brightness, gamma correction 2. Applications Abdominal Gynecology Obstetric(bpd, crl, ofd, ttd, fl, hc, ac) Cardiology Urology 3. Standard configuration Main system unit, 3.5mhz convex probe, user manual and disc 4. Optional items Biopsy bracket, ultrasonic stands, usb flash disk 5. Probes selection 3.5 mhz convex probe (3.5-14mhz variable frequency ) 7.5 mhz linear probe (3.5-14mhz variable frequency ) 7.5 mhz transvaginal probe (3-10mhz variable frequency) 5.0 mhz micro-convex probe (2-6mhz variable frequency) 7.5 mhz rectal probe(80 elements) 6. Advanced technologies User-friendly interface Dual connector support various probes Back-lit keyboard Packaging & delivery Packaging details: box package Net weight: 12 Gross weight: 18kg Package size: 500*400*450mm Delivery time: 5-10 working days Warranty Two years for main unit (one year warranty for probes)
General Specification 1. Main Features Operationg SyetemWindow 7 Monitor 10.4 inch LCD monitor Scanning ModeB, B/B, 4B, B/M, M, 3D Image Reconstruction KeyboardBack-lit Silicone Keyboard (option) Cine LoopUp to 1024 frames Gain0-255dB TGC8 segment Scanning DepthUp to 240mm Dynamic Range20-150dB Pseudo-color40, or customized Body Marking140 Focus4 Magnification0.8-6.0 Probe Connector2 LanguageChinese/English/Spanish Matching PrinterLaser/Vedio/Inkjet/Thermal printer Peripheral PortUSB, DICOM3.0, RS232, VGA, VCR, PAL-D Measurement & CalculationB-mode: Distance, Perimeter, Area, Volume, Angle, Histogram, Cross Section, Hip Joint Angle M-mode: Heart Rate, Time, Gradient Image Processing TechnologiesTHI, Pre-process, Post-process, Dynamic Range, Contrast, Frame Correlation, Average Line, Edge Enhancement, Black-white Change over, Gray-scale Transformation&Adjustment, Brightness, Gamma Correction  2. Applications Abdominal(Liver, Gallbladder, Spleen, Kidney, Pancreas) Gynecology(Uterus, Cervix Uterus, Endometrium, Ovary, Ovarian Follicle, Hydatoncus, Enclosed Mass) Obstetric(AC, BPD, CRL, FL, THD, GS, OFD, HUMERUS, TIDIA, ULNA, HC, TAD, APTD, FTA, AFI, Analytic report of fetus and the growth curve) Cardiology(LV, LV Function, Aorta, Mitral, Valve) Urology(Left Renal Volume, Right Renal Volume, RUV, Prostate kidney) Small Parts(Ophthalmology, Thyroid, Jaw and Face) 3. Standard Configuration Main system unit, 3.5MHz Convex probe, Lithium battery, Power adapter, Carrier suitcase, User manual and disc 4. Optional Items Biopsy Bracket 5. Probes Selection 3.5 MHz Convex Probe (3.5-14MHz variable frequency ) 7.5 MHz Linear Probe (3.5-14MHz variable frequency ) 7.5 MHz Transvaginal Probe (3-10MHz variable frequency) 5.0 MHz Micro-Convex Probe (2-6MHz variable frequency) 7.5 MHz Rectal Probe(80 elements) 6. Advanced Technologies PC platform Full Digital Ultrasonic Kernel Engine One Touch Optimizer Tissue Harmonic Imaging 3D Imaging Reconstruction DICOM 3.0 Packaging & Delivery Packaging Details: Aluminum Case+Box Package Net Weight: 2.5kg Gross Weight: 7kg Package Size: 370*295*170mm Delivery Time: 5-10 working days Warranty Two years for main unit (One year warranty for probes) Please let us know your specific request. We would like to recommend you the most suitable model based on your information.
General Specification 1. Main Features  Operationg SyetemWindow XP Monitor 10.4 inch CRT monitor Scanning ModeB, 2B, 4B, B/M, 3D image reconstruction KeyboardBack-lit Silicone Keyboard (option) Cine LoopUp to 256 frames Gain0-128dB TGC8 segment Scanning DepthUp to 240mm Dynamic Range30-120dB Pseudo-color40, or customized Body Marking140 Focus4 Magnification0.8-6.0 Probe Connector2 LanguageChinese/English/Spanish Matching PrinterLaser/Vedio/Inkjet/Thermal printer Peripheral PortUSB, VGA, DICOM3.0, RS232, VIDEO OUT Measurement & CalculationB-mode: Distance, Perimeter, Area, Volume, Angle, Histogram, Cross Section, Hip Joint Angle M-mode: Heart Rate, Time, Gradient Image Processing TechnologiesTHI, Pre-process, Post-process, Dynamic Range, Contrast, Frame Correlation, Average Line, Edge Enhancement, Black-white Change over, Gray-scale Transformation&Adjustment, Brightness, Gamma Correction  2. Applications Abdominal(Liver, Gallbladder, Spleen, Kidney, Pancreas) Gynecology(Uterus, Cervix Uterus, Endometrium, Ovary, Ovarian Follicle, Hydatoncus, Enclosed Mass) Obstetric(AC, BPD, CRL, FL, THD, GS, OFD, HUMERUS, TIDIA, ULNA, HC, TAD, APTD, FTA, AFI, Analytic report of fetus and the growth curve) Cardiology(LV, LV Function, Aorta, Mitral, Valve) Urology(Left Renal Volume, Right Renal Volume, RUV, Prostate kidney) Small Parts(Ophthalmology, Thyroid, Jaw and Face) 3. Standard Configuration Main system unit, 3.5MHz Convex probe, User manual and disc 4. Optional Items Biopsy Bracket 5. Probes Selection 3.5 MHz Convex Probe (3.5-14MHz variable frequency ) 7.5 MHz Linear Probe (3.5-14MHz variable frequency ) 7.5 MHz Transvaginal Probe (3-10MHz variable frequency) 5.0 MHz Micro-Convex Probe (2-6MHz variable frequency) 7.5 MHz Rectal Probe(80 elements) 6. Advanced Technologies PC platform Full Digital Ultrasonic Kernel Engine Tissue Harmonic Imaging 3D Imaging Reconstruction DICOM 3.0 Packaging & Delivery Packaging Details: Box Package Net Weight: 12kg Gross Weight: 18kg Package Size: 500*400*450mm Delivery Time: 5-10 working days Warranty Two years for main unit (One year warranty for probes)
We have good quality Used and New Laptops of all brands. Product Name Used laptops Processor CPU Series: Intel Core i7 4-generation family CPU Type: Intel Core i7 4702MQ CPU frequency: 2.2GHz Core frequency: 3200MHz Bus Specifications: DMI 5 GT / s Three cache: 6MB Core Architecture: Haswell Core / thread count: quad-core / eight thread Storage Device Memory Capacity: 4GB (4GB Ã?? 1) Memory Type: DDR3L (low voltage version) 1600MHz Hard disk capacity: 500GB Hard Description: Support the expansion turn mSATA SSD hard drive Drive Type: No built-in optical drive Display Touch screen: does not support touch Screen Size: 14 inches Aspect Ratio: 16:9 Screen Resolution: 1366x768 Screen technology: LED backlit, matte glare mask Graphics Graphics Type: Dual Graphics (fever-level graphics card + integrated graphics) Graphics chip: NVIDIA GeForce GTX 760M + Intel GMA HD 4400 Memory Capacity: 2GB Memory Type: GDDR5 Memory Interface: 128bit Number of stream processors: 768 Multimedia devices Camera: 720p HD webcam Audio System: Built-in audio chip Speaker: Built-in speaker Microphone: Built-in microphone Network Communications Wireless LAN: 802.11b/g/n wireless protocol Wired LAN: 100Mbps Ethernet card I / O interfaces Data interface: 1 Ã?? USB2.0 +2 Ã?? USB3.0 Video Interface: VGA, HDMI Audio interface: headphone / microphone combo interface Other interfaces: RJ45 (network interface), power connector Reader: Multi-in-1 card reader Input Devices Pointing device: Touchpad Keyboard Description: Full-size keyboard Power Description Battery: 6-cell lithium battery, 5900 mA Life time: 5 hours, the specific time depending on use environment Power adapter: 100V-240V 90W AC power adapter adaptive Exterior Laptop Weight: 2Kg Length: 339.2mm Width: 239.5mm Thickness: 26.4mm Shell material: composite material Case Description: Black Notebook accessories Packing list: Host x1 notebook Power adapter x1 Power cord x1 Manual x1 Warranty card x1 Shipping DOCS 1. Commercial Invoice 2. Packing list 3. Certificate of Origin 4. Bill of Loading 5. Form A/Form E 6. Other documents are according to customer's
Advantages of LEO-3000 D1 PLUS 1. Our LEO-3000D1 PLUS has inside storage memory. It can store 8 images timeless. 2. Our LEO-3000D1 PLUS has USB port, that you can save the unlimited image through USB port, and moreover, it can connect with computer to finalize the function of printing, saving and so on. 3. Our LEO-3000D1 PLUS has TGC-control buttons in the keyboard. Moreover, it has numeric gain control button. 4. Inside LEO-3000D1 PLUS, there is only one board, which brings much convenience to our after-service.
However, the term "capsule endoscope delivery device" suggests a system related to capsule endoscopy. Capsule endoscopy is a non-invasive diagnostic procedure where a patient swallows a small capsule equipped with a camera that takes pictures of the gastrointestinal (GI) tract as it passes through. Here are some general considerations: Capsule Endoscopy: The device is likely associated with delivering a capsule endoscope for diagnostic purposes in the gastrointestinal system. STERIS: As a company focusing on healthcare solutions, the product may emphasize aspects of infection prevention, hygiene, or ease of use during the capsule endoscopy procedure.
An endobronchial tube is a medical device designed for use in the respiratory system, specifically within the bronchial tubes. These tubes are used in various medical procedures, such as bronchoscopy, endobronchial intubation, and lung surgery. The primary purpose of an endobronchial tube is to maintain an open airway and facilitate the delivery of oxygen or anesthesia to the patient's lungs during surgical or diagnostic procedures. Key features and uses of endobronchial tubes include: Bronchoscopy: Endobronchial tubes are often used in bronchoscopy procedures, allowing physicians to visually examine the bronchial tree and perform diagnostic or therapeutic interventions. Lung Surgery: During certain lung surgeries, endobronchial tubes may be employed to isolate and collapse one lung, providing a clear field of view for the surgeon. Ventilation: Endobronchial tubes can be used for selective lung ventilation. They can be positioned to direct ventilation to a specific lung, allowing the other lung to be collapsed or isolated. Anesthesia: In some cases, endobronchial tubes are used for delivering anesthesia during thoracic surgeries or procedures.
ACIST Medical Systems is known for its innovations in contrast delivery systems for medical imaging, particularly in the field of cardiology. The "ACIST NAVVUS RX MICROCATHETER" suggests a microcatheter associated with contrast delivery or imaging guidance. Here are some general considerations for components like microcatheters used in imaging procedures: Contrast Delivery: Microcatheters are often used in conjunction with contrast media to enhance visibility during medical imaging procedures, such as angiography. Navigation: The term "NAV" in "NAVUS" suggests navigation, which could indicate that the microcatheter is designed for precise and controlled navigation within blood vessels or specific anatomical structures. RX: The "RX" designation often denotes a product intended for diagnostic or therapeutic interventions. Imaging Modalities: Microcatheters are commonly used in procedures like angiography, where detailed imaging of blood vessels is required.
Ultrasonic Diagnostic Apparatus Product Description - Abdominal,Obstetrics,Gynecology, Cardiology, Neural and Small parts Price of product ( USD price or FOB price) - 3000/per unit Product origin - China Key Specifications/Special Features - 1.Color 12.1' LED monitor with high resolution, USB port; 2.Light weight of 2.5kgs, and Laptop design; 3.Built-in battery can drive the main unit to work for more than 3 hours; 4. General, OB/GYN, cardiology, urinary, small organs, and so on 5. VGA Outpout,AV Outpout,working station, connect with computer, external monitor and HP printer directly Minimum Order Size and Packaging details - 1pcs
Honda diagnostic system kit Description: This interface module kit works with the oem-honda diagnostic pc software (hds). It can diagnose all honda and acura vehicle systems on models from 1992 to year 2008, including can-bus system. Functions supported by honda/acura protocols: Reading and decoding fault codes from control blocks' memory; Deleting fault codes; Displays system's current parameters in digital form; Displays system's current parameters in graphical form; Combined displaying of data; Management of executive devices; Logs keeping - writing and keeping of digital parameters in memory; Special functions - changing of permissible settings of blocks, programming etc. Functions supported by obd-ii protocols: Mode 1 - displays system's current parameters in digital form (up to 8 parameters at once); Mode 2 - displays parameters of "freeze" frame; Mode 3 - reading and decoding of fault codes from control block's memory; Mode 4 - deleting of fault codes (memory clearing); Mode 5 - displays results of oxygen sensors; Mode 6 - displays results of changeably controled systems and components; Mode 7 - displays results of constantly controled systems and components; Mode 8 - management of executive devices; Mode 9 - displays car's identification info. Hardware and software requirements: Pc or laptop with either windows 2000 professional (sp4 or later) or xp (sp1 or later) Hard disk drive with at least 400mb of free space Cd-rom drive (if a high-speed internet connection is not available) Rs232 port required to connect pc to him (pc version software only) Monitor capable of displaying in vga mode or above (1024 x 768 recommended) Internet connection (high-speed connection recommended) Honda diagnostic system kit includes: 1 x him with obd ii cable 1 x dvd 1 x 3 pin cable 1 x rs232 cable 2 x selftest adapter 1 x storage case Net weight: 3.5kg
USB Port, Double Connectors, Light Keyboard; We are the Procreation and Health Industry Center of China awarded by the National Government,which is the unique among tens of thousands of Chinese medical equipment factories. We sincerely invite you to pay a visit to our factory.
Leo-3000 e1 ultrasonic diagnostic equipment
The HBP1800 series all-in-one energy storage solution, support 1KW 2KW 3KW output for different load appliances. It's based on the original cabinet design, stacked with solar energy storage lithium battery 960wh~3072wh, and built in battery protection system, fully retain the use of load power in applications of residential, school, commercial and public utility area. Features higher capacities for greater compatibility with more power-hungry devices, and the latest in USB-C Power Delivery capable of charging larger USB devices like laptops. Includes pre-installed solar charging optimization module that functions as a maximum power point tracker (MPPT), resulting in up to 40% faster charge times. With LiFePO4 lithium cells, known for stability and safety, monitored by a state-of-the-art battery management system that prevents overcharge, over-current, and short circuiting. Built in Multi safety protection that include short circuit, overload and over-temperture and error code reporting.
The HBP1800 series all-in-one energy storage solution, support 1KW 2KW 3KW output for different load appliances. It's based on the original cabinet design, stacked with solar energy storage lithium battery 960wh~3072wh, and built in battery protection system, fully retain the use of load power in applications of residential, school, commercial and public utility area. Features higher capacities for greater compatibility with more power-hungry devices, and the latest in USB-C Power Delivery capable of charging larger USB devices like laptops. Includes pre-installed solar charging optimization module that functions as a maximum power point tracker (MPPT), resulting in up to 40% faster charge times. With LiFePO4 lithium cells, known for stability and safety, monitored by a state-of-the-art battery management system that prevents overcharge, over-current, and short circuiting. Built in Multi safety protection that include short circuit, overload and over-temperture and error code reporting.
ALPHA 3 IN 1 TRAVEL BACKPACK ALPHA, A backpack that can be used for travel and office. Elegant design with thoughtful functionality. This is the bag that helps you navigate the ride to the office, the gym detour, and the hike up to the mountain at the weekend. Designed to perform and last. For organizing smaller work supplies, the bag features two removable front pockets that can be worn independently when you just need to carry the essentials, perfect for organizing smaller work and everyday carry essentials. DESIGN INSIDE * Adjustable shoulder straps with sternum strap two lateral handles and one top handle to allow smooth handling and maximum functionality. * Main zipper compartment for travel and work gear. * The main compartment also has a stationary organizer. * Separate heavy 3-side padded Suede Brush Lining for laptop section that holds devices up to 15 Inches. * The side compartment is shockproof. A dedicated laptop and iPad compartment. * One small zipper pocket on the back for easy and fast access for Essentials. * One side RFID-protected pocket for card/wallet that keeps your information secure from scammers. * USB charging port. * Chest and bottom compression straps for the stability of the back & to reduce stress on the shoulder, neck & back. * Polyester Thread heavy stitching, with Bar-tack stitching at all important touch points. * Strap Quality: Polyester Webbing Contoured, breathable back panel for all-day carrying comfort. * Padded shoulder straps keep heavier loads comfortable. * Trolley pass-through Belt for easy carrying. * Weight-distributing, low-profile harness system. * Multipurpose Front Webbing. * Size: H46 X L29 X W16.5 cms
Features: 3D software support, 3D image soon construction Windows XP ultrasound system, quick start up and running, convenient software updating, large capacity and strong stability Backlight silica gel PBT keyboard, easy for darkroom operation Auto generating the fetal growth analysis report, and Obstetrics and Gynecology, small parts, cardiology and urology reports, can connect with laser printer for A4 report printing. Expanded port: Video port, S-Video port, RS-232 port, USB2.0 port, VGA port,DICOM3.0 port Standard configurations: Main unit, 15 inch LCD screen with rocker, convex probe, laser printer, 3D software Optional: linear probe, video printer, vaginal probe, puncture guide.