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Tip weights

Tip weights for manometric assemblies


  • Weighted tips are especially useful for aiding the movement of manometric assemblies across the stomach into the duodenum.

  • Beyond the distal duodenum, tip weights are of little if any help in aiding assembly passage.

  • Tip weights are most effective when gravity is used systematically to move the weight into the distal antrum.

  • Approaches to the effective use of tip weights are outlined in Dentsleeve Technical Note 5, Version 2 - Strategies for transnasal or oral passage of manometric assemblies.
    Categories of Dentsleeve
    manometric assemblies
    that require tip weights

    Any assembly that needs to be passed across the pylorus is best made with a tip weight, the only exception to this being assemblies which are designed for passage over a guide wire.

    In assemblies designed for passage over a guide wire a tip weight is redundant, and more importantly, the weight can impede advancement of the tip over the guide wire.

    Assemblies that are to be passed some distance along the small intestine can be supplied with a tip weight and a small balloon. Once the tip weight has carried the assembly tip into the duodenum, the balloon can be inflated to stimulate propulsive small intestinal contraction patterns, thus speeding passage of the assembly to the desired depth.

    Dentsleeve tip weights

    Dentsleeve uses specially made cylindrical tungsten pellets as weights.

    These pellets are similar to those used to weight the tips of some feeding tubes.

    Currently available pellets are 2 mm in diameter and 5 mm long.

    We recommend that for standard applications in adults a weight incorporate 6 pellets arranged in 3pairs (see photograph).

    The weights are encased in silicone rubber which has a 2.7 mm diameter.

    We believe that tip weights pass most easily if they are flexible, and so we recommend and supply as standard, weights that have a flexible articulation at their join to the assembly, and flexible articulations after each pair of pellets (see photograph).



    Per-nasal or oral intubation with these weights requires a slightly modified technique - see Dentsleeve Technical Note 5, Version 2 - Strategies for transnasal or oral passage of manometric assemblies.

    Our tip weights are non-toxic and autoclavable.


    Dentsleeve International Ltd


    Specialised components of manometric assemblies