SPHERA ANTI-SIPHON

CEREBRAL SHUNT SYSTEM

      Body in silicone
      “Ball in Cone” mechanism made of ruby
      Compatible with CT and MRI

 

The Sphera Valve with Anti-siphon is designed to maintain the Cerebral Intraventricular pressure stable regardless the position of the patient, reducing the occurrence of overdrainage.
The valve is flexible, with anatomic design and low implant profile. It is made in transparent medical grade silicone with internal structure in polysulfone. It has a central pumping chamber with needle guard to protect against excessive penetration during puncture.

 

SPHERA MECHANISM

Precise performance
The pressure control system is encased in the input connector. The mechanism is composed of ruby ball, stainless steel spring and conic seat. The perfect match between ball and seat can safely set the opening and closing pressure of the system, providing precise control of intracranial pressure.

The valve is provided in four pressure ranges: high, medium, low and extra low to meet individual needs of patients. The input connector, manufactured in polysulfone, has radiopaque markings of flow and pressure that allows viewing in x-ray image.
Hpbio Sphera Anti Siphon Funcionamento

ANTI-SIPHON NECHANISM

Avoiding overdrainage
Encased in the output connector, the mechanism prevents ventricular overdrainage caused by siphoning in the distal catheter when the patient moves from horizontal to vertical position. The mechanism is composed of a flexible silicone membrane that when attracted by the negative pressure of the distal catheter prevents or reduces the flow of excessive fluid (fig.2).

When the patient is upright, the combination of the mechanisms Anti-siphon and Sphera provides the dynamic balance of the system, keeping the valve operating on a stable flow/pressure rate. When the patient returns to the horizontal position, the Anti-siphon system stops to interfere in the control of flow and the valve returns to work in the initial condition (Fig.1).
Hpbio-AntiSiphon-Fluxo

CATHETERS

Flexibility and radiopacity
The valve is supplied with a cerebral ventricular catheter and a peritoneal catheter. These are made of soft transparent medical grade silicone with radiopaque fillet, which allows the viewing of catheters in x-ray image. The hardness of the silicone used in the manufacture of catheters was tailored to allow adequate flexibility and at the same time to prevent the occurrence of unwanted kink in the subcutaneous route, which can cause obstruction or decrease of drainage flow.

The standard model comes with a straight ventricular catheter a 15 or 23.5cm length, a 90° Angle former, and the peritoneal catheter with 102 or 120cm length. Different configurations are avaliable upon request.
HpBio Cateter Ventricular

PRESSURE AND FLOW

 
The bands in Graphic 1 and 2 represent the range where the pressure curve operates when submitted to a progressive increasing flow from 5 to 50ml/hour. There results were obtained in “in vitro” tests.

Hpbio AntiSiphon Time

                Flow of 20ml/h and 50cm of negative pressure.
 
Hpbio AntiSiphon Flow Graphics

      The graphic represents a valve operating within a range of medium pressure (7 to 11 cm H2O), initially with the patient in a horizontal position and then upright.

COMPONENTS

HpBio Anti Siphon Components
      1 – Input Connector
      2 – Body in silicone
      3 – Chamber for pumping and puncturing
      4 – Radiopaque markers for pressure and flow direction
      5 – Pressure control valve (ball, seat and spring)
      6 – Safe guard in Polysulfona
      7 – Anti -siphon mechanism
      8 – Output Connector

Marks

 
Radiopaque marking to indicate the pressure flow
HpBio Anti-Siphon Marks

DIMENSIONS

Hpbio-Anti-Siphon-Dimensoes
Adult
Code
    ADE10210
    ADB10210
    ADM10210
    ADA10210
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right-angled 10cm with inox stylet;
    01 Peritoneal catheter 102cm;
    01 Burr hole catheter support
 
SpheraDuo Adulto Angulado
Code
    ADE10215
    ADB10215
    ADM10215
    ADA10215
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right-angled 15cm with inox stylet;
    01 Peritoneal catheter 102cm;
    01 Right-angled guide, 01 Burr hole catheter support;
 
SpheraDuo Adulto
Code
    ADE10223
    ADB10223
    ADM10223
    ADA10223
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right-angled 23,5cm with inox stylet;
    01 Cateter peritoneal de 102cm;
    01 Right-angled guide; 01 Burr hole catheter support
 
SpheraDuo Adulto
Code
    ADE12015
    ADB12015
    ADM12015
    ADA12015
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right 15cm with inox stylet;
    01 Peritoneal catheter 120cm;
    01 Right-angled guide, 01 Burr hole catheter support
 
SpheraDuo Adulto
Code
    ADE12023
    ADB12023
    ADM12023
    ADA12023
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right 23,5cm with inox stylet;
    01 Peritoneal catheter 120cm;
    01 Right-angled guide, 01 Burr hole catheter support
 
SpheraDuo Adulto
Code
    ADE9010
    ADB9010
    ADM9010
    ADA9010
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right-angled 10cm with inox stylet;
    01 Peritoneal catheter 90cm;
    01 Burr hole catheter support
 
SpheraDuo Adulto Angulado
Code
    ADE9015
    ADB9015
    ADM9015
    ADA9015
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    01 Cerebral ventricular catheter right 15cm with inox stylet
    01 Peritoneal catheter 120cm
    01 Right-angled guide, 01 Burr hole catheter support
 
SpheraDuo Adulto
Adult Unishunt
Code
    UADE10210
    UADB10210
    UADM10210
    UADA10210
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Cerebral ventricular catheter right-angled 10cm with inox stylet;
    01 Peritoneal catheter 90cm;
    01 Burr hole catheter support
 
SpheraDuo Adulto Angulado
Code
    UADE10215
    UADB10215
    UADM10215
    UADA10215
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to;
    01 Peritoneal catheter 102cm;
    01 Cerebral ventricular catheter right 15cm with inox stylet;
    01 Right-angled guide, 01 Burr hole catheter support
 
Hpbio Anti-siphon unishunt
Code
    UADE10223
    UADB10223
    UADM10223
    UADA10223
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Peritoneal catheter 102cm;
    01 Cerebral ventricular catheter right 23,5cm with inox stylet;
    01 Right-angled guide, 01 Burr hole catheter support
 
Hpbio Anti-siphon unishunt
Code
    UADE12015
    UADB12015
    UADM12015
    UADA12015
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to;
    01 Peritoneal catheter 120cm;
    01 Cerebral ventricular catheter right 15cm with inox stylet;
    01 Right-angled guide, 01 Burr hole catheter support
 
Hpbio Anti-siphon unishunt
Code
    UADE12023
    UADB12023
    UADM12023
    UADA12023
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Peritoneal catheter 120cm;
01 Cerebral ventricular catheter right 23,5cm with inox stylet;
    01 Right-angled guide, 01 Burr hole catheter support
 
Hpbio Anti-siphon unishunt
Code
    UADE9010
    UADB9010
    UADM9010
    UADA9010
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Cerebral ventricular catheter right 10cm with inox stylet;
    01 Cateter peritoneal de 90cm
    01 Burr hole catheter support
 
SpheraDuo Adulto Angulado
Code
    UADE9015
    UADB9015
    UADM9015
    UADA9015
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Peritoneal catheter 90cm ;
    01 Cerebral ventricular catheter right 15cm with inox stylet;
    01 Right-angled guide, 01 Burr hole catheter support
 
Hpbio Anti-siphon unishunt
Adult Unitized
Code
    UNADE10213
    UNADB10213
    UNADM10213
    UNADA10213
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve pre-coupled to
    01 Cerebral ventricular catheter right 13,5cm with inox stylet
    01 Peritoneal catheter 102cm;
    01 Right-angled guide, 01 Burr hole catheter support, 01 stainless steel guide
 
Anti-siphon-unitized
Single Valve
Code
    SVAE
    SVAB
    SVAM
    SVAA
Pressure
    Extra-Low
    Low
    Medium
    Hight
Content
    01 Adult hydrocephalus valve;
    1 Burr hole catheter support
     
     
 
Hpbio Anti-siphon valvula

Radiopacity

Implanted valve identification

HpBio SpheraDuo Radipacidade
The pressure and flow direction of the valve are detectable by X-ray picture, as shown next. The arrow on the valve body indicates the direction of flow, and the circular marks symbolize according to legend pressure.
Images scanned directly from real patient Implants X-ray

Note: The technical information for these products is not limited to the characteristics presented in this catalog. For complete information, request the Instructions for use at info@hpbio.com.br.