Abstract: A low-frequency treatment device includes: a pad configured to be attached to a body of a user; a holder configured to hold the pad; and a main body portion configured to be attached to the holder. The holder and the main body portion are engaged, with a clearance of a predetermined distance for arranging the pad being formed therebetween. Electrical conduction established between a pad-side electrode portion included on the pad and a main body portion-side electrode portion included on the main body portion by coming into contact with each other in the clearance of the predetermined distance. At least one electrode portion among the pad-side electrode portion and the main body portion-side electrode portion can perform movement in a direction of approaching and separating from the other electrode portion and is biased in the approaching direction.

Abstract: The present invention includes a guiding engagement portion configured such that a holder and a main body portion for supplying a low-frequency pulse current to a pad engage in a state in which the main body portion is attached to the holder, and the holder and the main body portion are disengaged in a state in which the main body portion is removed. The guiding engagement portion is formed so as to allow the holder and the main body portion to engage by moving in a direction of approaching each other during the attachment, and during the removal, disengage the holder and the main body portion by restricting movement in a direction opposite to the movement direction during the attachment, and allowing the main body portion to move with respect to the holder in a direction intersecting the direction of approaching each other.

Abstract: A low-frequency treatment device includes: a pad configured to be attached to a body of a user; a holder configured to hold the pad; and a main body portion configured to be attached to the holder. The holder and the main body portion are engaged, with a clearance of a predetermined distance for arranging the pad being formed therebetween. Electrical conduction established between a pad-side electrode portion included on the pad and a main body portion-side electrode portion included on the main body portion by coming into contact with each other in the clearance of the predetermined distance. At least one electrode portion among the pad-side electrode portion and the main body portion-side electrode portion can perform movement in a direction of approaching and separating from the other electrode portion and is biased in the approaching direction.

Abstract: The present invention includes a guiding engagement portion configured such that a holder and a main body portion for supplying a low-frequency pulse current to a pad engage in a state in which the main body portion is attached to the holder, and the holder and the main body portion are disengaged in a state in which the main body portion is removed. The guiding engagement portion is formed so as to allow the holder and the main body portion to engage by moving in a direction of approaching each other during the attachment, and during the removal, disengage the holder and the main body portion by restricting movement in a direction opposite to the movement direction during the attachment, and allowing the main body portion to move with respect to the holder in a direction intersecting the direction of approaching each other.

Abstract: Thiazine derivatives of the formula [I]: ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 are each hydrogen atom; R.sup.3 is hydrogen atom or a halogen atom; X is sulfur atom; R.sup.6 is naphthyl, a sulfur-containing monoheterocyclic group or a substituted phenyl; Z.sup.1 is two hydrogen atoms; Z.sup.2 is oxygen atom; A is a lower alkylene; R.sup.7 and R.sup.8 are the same or different and are each i) hydrogen atom, ii) a lower alkyl, iii) a lower alkenyl, iv) a lower alkynyl, or v) a lower alkyl which is substituted by a substituted phenyl, or both form together with the adjacent nitrogen atom a nitrogen-containing monoheterocyclic group; except for the compound [I] wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each hydrogen atom, X is sulfur atom, R.sup.6 is a halogenophenyl, Z.sup.1 is two hydrogen atoms, Z.sup.2 is oxygen atom, A is a lower alkylene, R.sup.7 and R.sup.

Abstract: Thiazine derivatives of the formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 are both H or form a naphthalene ring together with the benzene ring; R.sup.3 and R.sup.4 are both H, or one of them is halogen and another is H; X is S or O; R.sup.5 and R.sup.6 are each i) H, ii) lower alkyl, iii) cycloalkyl, iv) substituted phenyl, v) naphthyl, vi) lower alkyl which is substituted by substituted or unsubstituted phenyl, or vii) S-containing heterocyclic group; one of Z.sup.1 and Z.sup.2 is O and another is H.sub.2 ; A is lower alkylene; R.sup.7 and R.sup.8 are each i) H, ii) lower alkyl, iii) lower alkenyl, iv) lower alkynyl, or v) lower alkyl which is substituted by substituted or unsubstituted phenyl, or both form together N-containing heterocyclic group; provided that when both of R.sup.1 and R.sup.2 are H, Z.sup.2 is O and either one of R.sup.5 and R.sup.

Abstract: Thiazine (or oxazine) derivatives of the formula [I]: ##STR1## wherein R.sup.1 and R.sup.2 are both H or form a naphthalene ring together with the benzene ring; R.sup.3 and R.sup.4 are both H, or one of them is halogen and another is H; X is S or O; R.sup.5 and R.sup.6 are each i) H, ii) lower alkyl, iii) cycloalkyl, iv) substituted phenyl, v) naphthyl, vi) lower alkyl which is substituted by substituted or unsubstituted phenyl, or vii) S-containing heterocyclic group; one of Z.sup.1 and Z.sup.2 is O and another is H.sub.2 ; A is lower alkylene; R.sup.7 and R.sup.8 are each i) H, ii) lower alkyl, iii) lower alkenyl, iv) lower alkynyl, or v) lower alkyl which is substituted by substituted or unsubstituted phenyl, or both form together N-containing heterocyclic group; provided that when both of R.sup.1 and R.sup.2 are H, Z.sup.2 is O and either one of R.sup.5 and R.sup.