A brush head assembly (100) including: a hard platen (24); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25); and an elastomeric matrix (30) bonded to the hard platen, where each of the bristle tufts is bonded directly to the elastomeric matrix without a retention element. A brush head assembly (100) includes: a hard platen (24) with a plurality of bristle tuft holes (28); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25), where each of the plurality of bristle tufts are inserted into a respective one of the bristle tuft holes; and an elastomeric matrix (30) that at least partially encompasses the hard platen and the proximal end of the bristle tufts.

A method (200) for manufacturing a brush head (100). The method includes the steps of providing a plurality of polypropylene bristle tuft retention rings (50), and inserting a respective nylon bristle tuft (21) into each of the bristle tuft retention rings. Heat is applied to each bristle tuft proximal end (23) at a temperature sufficient to at least partially melt the bristle tuft proximal end and create a proximal head portion (26). The platen (42) of the brush head is positioned in relation to the retaining rings (50) and proximal head portions (26) to define a space (92) in relation to the proximal head portions for injection of a thermoplastic elastomer, and the thermoplastic elastomer is injected into the space to create an elastomeric matrix (30) that at least partially encompasses the neck and the proximal head portions.

A method for making a toothbrush including a handle, a head including at least one cleaning element extending therefrom, and a hinge arranged between the head and the handle, said hinge including a joint between the handle and the head of a harder thermoplastic component covered by a softer thermoplastic component is provided, the method including: forming a base body by injection molding of a first thermoplastic material forming one of the handle or the head, and injection molding of a second thermoplastic material for forming the other of the handle or the head to thereby fuse the second thermoplastic material against the first thermoplastic material; placing the base body into a further mold; and injection molding the softer thermoplastic component for covering the joint.

A brush head (100), including: an elastomeric matrix (30) including a first surface (32); a plurality of retention rings (50) disposed in the elastomeric matrix, each of which includes a first end (51), a second end (53) positioned closer to the first surface of the elastomeric matrix than the first end, an interior wall (55) forming an interior space (59) with a central longitudinal axis (111), and an exterior wall (57). At least one of the interior wall and the exterior wall of at least a first retention ring of the plurality of retention rings (50) includes a taper (61, 67, 73, 63, 69, 71). A plurality of bristle tufts (21), each of which comprises a plurality of bristle strands, having a proximal end (23) and a free end (25), is retained at its proximal end within the interior space of one of the plurality of retention rings.

A method of manufacturing a toothbrush includes steps of providing a carrier having at least a first through hole extending from a front side to a backside of the carrier and at least a first wall element integral with the carrier and extending from the back side in a vicinity of the through hole; introducing a first cleaning element into the first through hole such that an end portion of the first cleaning element is exposed on the backside of the carrier; treating the end portion of the first cleaning element such that it deforms and becomes wider than the first through hole; and deforming the first wall element until it at least partially extends over the deformed end portion of the first cleaning element such that the first cleaning element is effectively retained in its axial position. A brush having structural features resulting from the manufacturing method.

An oral care implement is provided. The implement comprises: a handle having a core (118) comprising recycled material and a cover (112) enveloping the core (118); and a head comprising at least one cleaning element, the head (120) being connected to, or connectable to, the handle. Also provided is a method of manufacturing an oral care implement, the method comprising: providing recycled material; and enveloping the recycled material with cover material to form a handle of the oral care implement, the handle having a core comprising the recycled material and a cover comprising the cover material enveloping the core.

An interdental brush of the present disclosure includes a base part including a handle part that is grippable by a user, and a core part extending from the handle part and having a diameter or thickness that decreases as a distance from the handle part increases, and a soft part including an anti-slip part covering at least a part of the handle part, and an interdental cleaning part covering the core part and including a plurality of projections for removing foreign substances between teeth, the soft part being formed of an elastic material. The base part includes a plurality of through holes disposed to be spaced apart from each other in a longitudinal direction, and the soft part is provided in a space formed by at least one of the plurality of through holes.

Medical lumen interacting tools and associated manufacturing methods are provided. A medical lumen interacting tool comprises an elongated core having a longitudinal axis, a body attached to the elongated core for interacting with the lumen, and one or more anchors interlocking the body with the elongated core along the longitudinal axis of the elongated core to hinder relative movement between the elongated core and the body along the longitudinal axis.

An interdental cleaning tool is provided, which is capable of suppressing from being broken. The interdental cleaning tool 1 includes: a base material portion 10 including a base section 11 and a shaft section 12 extending from the base section 11; a soft portion 20 including a covering section 21 that covers a distal end part 12a of the shaft section 12, and a plurality of projections 22 extending from the covering section 21; and an extension soft portion 30 covering a middle part 12b of the shaft section 12, the middle part being located further toward the proximal side than the soft portion 20 so as to extend the covering section 21 toward the proximal side of the shaft section 12, the extension soft portion 30 not being provided with the projections 22.

A glue-free integrally-formed makeup brush includes a handle and a brush head assembly integrally formed. The brush head assembly includes a bristle cluster, a sleeve and a plug. A root of the bristle cluster is provided with at least two protrusions, and a first groove is provided between adjacent protrusions. A first end of the sleeve is connected with the handle, and an inner wall of a second end of the sleeve is provided with an annular boss. An end surface of the annular boss facing towards the handle is provided with at least two bearing bosses, and a second groove is provided between adjacent two bearing bosses. The protrusions are engaged with the second groove, and the bearing bosses are engaged with the first groove.