Rat PV Loop Catheters

Millar’s Mikro-Tip® ultraminiature pressure-volume (PV) loop catheters have revolutionized the possibilities for cardiovascular research in small animals. They are capable of measuring both left ventricular pressure and volume simultaneously from the intact, beating hearts of mice and rats.

Our catheters for small animal research may be used in either closed-chest or open-chest surgical procedures, and in isolated working heart studies. We offer the smallest pressure-volume catheter product line for use in mouse and rat research studies. 

These catheters are reusable - non-sterile and combine pressure sensors and electrodes for simultaneous high-fidelity pressure and volume measurements, enabling minimally invasive, continuous, intracardiac pressure-volume analysis.

Available Models

Rat Pressure-Volume Loop Catheters

SPR-878

The SPR-878 rat pressure-volume catheter is designed to measure simultaneous left or right ventricular pressure and volume in larger rats. Built to the highest quality standards, the catheter combines a proven Mikro-Tip® pressure sensor with four electrodes to collect real-time pressure-volume data.

Due to its larger electrode spacing, SPR-878 is useful when the length of the subject’s left ventricle (LV) exceeds 9 mm. With a pressure sensor diameter of 2F and 1.1F along the catheter body, this model offers the ideal combination of durability and ease of use for hemodynamic studies utilizing larger sized rats.

The SPR-878 provides a 12.5 cm usable catheter length and a 12 mm electrode spacing for optimized ventricular volume measurement in larger rats. For studies utilizing average or smaller sized rats, consider the SPR-838 or SPR-869.

For complete hemodynamic analysis, use the SPR-878 mouse pressure-volume catheter with the MPVS Ultra® or MPVS Ultra® Single Segment system, PowerLab 35 Series data acquisition system with LabChart Pro and the PV Loop analysis module.

Product Specifications

Model
SPR-878
Product Number
840-8144
Subject
Rat
Length
15 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
1
Number of Electrodes
4
Electrode Spacing
12 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

SPR-858

The SPR-858 rat pressure-volume catheter is specially designed for use with larger rats with a ventricular long axis of greater than 15 mm. Like all Millar PV catheters, it provides optimal data for simultaneously measuring left ventricular pressure and volume at the source.

Millar remains committed to supporting the life sciences and pharmaceutical researcher. By offering a wide range of pressure-volume catheter models, we ensure that you always have the right tool for your application.

Cardiovascular researchers have successfully used this 2F pressure-volume catheter for improved catheterization in studies where older subjects are required and where matching catheter spacing with ventricular length is key to collecting the most accurate data.

The SPR-858 provides a 12 cm usable catheter length and a 14 mm electrode spacing for optimized ventricular volume measurement in large rats. For standard sized rats, consider the market leading SPR-838 catheter.

For complete hemodynamic analysis, use the PVR-1045 mouse pressure-volume catheter with the MPVS Ultra or MPVS Ultra® Single Segment system, PowerLab 35 Series data acquisition system with LabChart Pro and the PV Loop analysis module.

Product Specifications

Model
SPR-858
Product Number
840-8129
Subject
Rat
Length
12 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
1
Number of Electrodes
4
Electrode Spacing
14 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

SPR-902

The SPR-902 dual pressure rat pressure-volume catheter provides a simultaneous measure of aortic pressure and left ventricular pressure and volume in rats via a single catheter placed via an apical approach. Built to the highest quality standards, the catheter combines two proven Mikro-Tip® pressure sensors with four electrodes to collect real-time pressure-volume data.

The aortic pressure sensor is located at the catheter tip while the ventricular pressure sensor is located between the four volume measurement electrodes spaced 12 mm from the aortic pressure sensor. This catheter is ideal for adding a measurement of total peripheral resistance to your PV loop studies.

With a pressure sensor diameter of 2F and 1.1F along the catheter body, this model offers increased measurement capability in hemodynamic studies utilizing rats 350 g and larger. Like the SPR-838 pressure-volume catheter, the SPR-902 provides a 12.5 cm usable catheter length and a 9 mm electrode spacing for optimized ventricular volume measurement in standard-sized rats.

Product Specifications

Model
SPR-902
Product Number
840-8222
Subject
Rat
Length
15 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
2
Sensor Spacing
12mm
Number of Electrodes
4
Electrode Spacing
9 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

SPR-869

The SPR-869 rat pressure-volume catheter is designed to measure simultaneous left or right ventricular pressure and volume in rats. Built to the highest quality standards, the catheter combines a proven Mikro-Tip® pressure sensor with four electrodes to collect real-time pressure-volume data.

Due to its smaller electrode spacing, SPR-869 is becoming a more popular option as cardiovascular researchers continue to focus more on the right ventricle. With a pressure sensor diameter of 2F and 1.1F along the catheter body, this model offers the ideal combination of durability and ease of use for hemodynamic studies utilizing rats 350 g and smaller.

The SPR-869 provides a 12.5 cm usable catheter length and a 6 mm electrode spacing for optimized ventricular volume measurement in smaller rats. For studies utilizing larger rats, consider the SPR-838 pressure-volume catheter.

For complete hemodynamic analysis, use the SPR-869 mouse pressure-volume catheter with the MPVS Ultra® or MPVS Ultra® Single Segment system, PowerLab 35 Series data acquisition system with LabChart Pro and the PV Loop analysis module.

Product Specifications

Model
SPR-869
Product Number
840-8136
Subject
Rat
Length
12.5 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
1
Number of Electrodes
4
Electrode Spacing
6 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

SPR-838

The SPR-838 rat pressure-volume catheter is the market-leading solution for simultaneously measuring left ventricular pressure and volume in rats. Built to the highest quality standards, the catheter combines a proven Mikro-Tip® pressure sensor with four electrodes to collect real-time pressure-volume data.

The SPR-838 is Millar’s most popular catheter for performing pressure-volume studies in rats. With a pressure sensor diameter of 2F and 1.1F along the catheter body, this model offers the ideal combination of durability and ease of use for hemodynamic studies utilizing rats 350 g and larger.

The SPR-838 provides a 12.5 cm usable catheter length and a 9 mm electrode spacing for optimized ventricular volume measurement in standard-sized rats. For smaller animals and/or right ventricular studies, consider the SPR-869 pressure-volume catheter

For complete hemodynamic analysis, use the SPR-838 mouse pressure-volume catheter with the MPVS Ultra® or MPVS Ultra® Single Segment system, PowerLab 35 Series data acquisition system with LabChart Pro and the PV Loop analysis module.

Product Specifications

Model
SPR-838
Product Number
840-8110
Subject
Rat
Length
12.5 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
1
Number of Electrodes
4
Electrode Spacing
9 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

SPR-901

The SPR-901 dual pressure rat pressure-volume catheter provides a simultaneous measure of aortic pressure and left ventricular pressure and volume in rats via a single catheter placed via the carotid artery. Built to the highest quality standards, the catheter combines two proven Mikro-Tip® pressure sensors with four electrodes to collect real-time pressure-volume data.

The left ventricular pressure sensor is located between the four volume measurement electrodes at the tip of the catheter while the second aortic pressure sensor is located 12 mm from the LV sensor. This catheter is ideal for adding a measurement of total peripheral resistance to your PV loop studies

With a pressure sensor diameter of 2F and 1.1F along the catheter body, this model offers increased measurement capability in hemodynamic studies utilizing rats 350 g and larger. Like the SPR-838 pressure-volume catheter, the SPR-901 provides a 12.5 cm usable catheter length and a 9 mm electrode spacing for optimized ventricular volume measurement in standard-sized rats.

For complete hemodynamic analysis, use the SPR-901 mouse pressure-volume catheter with the MPVS Ultra® or MPVS Ultra® Single Segment system, PowerLab 35 Series data acquisition system with LabChart Pro and the PV Loop analysis module.

Product Specifications

Model
SPR-901
Product Number
840-8188
Subject
Rat
Length
15 cm
Tip F Size
2F
Body F Size
1.1F
Pressure Connector
Low Profile
Material
Polyimide
Tip
Straight
Number of Sensors
2
Sensor Spacing
12mm
Number of Electrodes
4
Electrode Spacing
9 mm

ADInstruments and Millar

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments, our strategic partner for over 15 years, because we share the same goals of providing quality products backed by world-class technical support and service.

Learn More from ADInstruments

Brochure
GET PRECISE PRESSURE RESULTS

For more information on how Millar and ADInstruments are working together to provide precise pressure and pressure volume research results, please download the Accuracy Matters brochure.

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Millar and ADInstruments

Millar Mikro-Tip® Pressure and PV Loop catheters systems are available exclusively from ADInstruments. Our strategic partnership enables an extended capacity for global reach while strengthening local support for all Millar customers. Millar and ADInstruments have been business partners for over 15 years. Both companies share the same goals of providing quality products backed by world-class technical support and service.

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For more information or to purchase these products, please contact Millar's exclusive distributor, ADInstruments, at 1 719.576.3970 or complete this form.

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