DISPOSABLE CAUTERIES

• US 3,613,682 A
• Filed: 02/05/1970
• Issued: 10/19/1971
• Est. Priority Date: 02/05/1970
• Status: Expired due to Term

• Current Assignee: Richard Norman Naylor
• Original Assignee: Richard Norman Naylor
• Inventors: Naylor, Richard Norman
• Primary Examiner(s): Pace, Channing L.
• Application Number:
  US05/008,878
• Time in Patent Office: 621 Days
• Field of Search: 128/303.1,303.13,303.18,303.19,355,405,406
• US Class Current: 606/30
• CPC Class Codes: A61B 18/10 Power sources therefor
• CPC Class Codes: A61B 2018/00642 with feedback, i.e. closed loop control

Abstract

A disposable hand-held portable cautery powered by selfcontained energizers or batteries for energizing an electrode heating tip which is mounted in an insulating tube provided with a removable protective cap or cover encompassing the heating tip and the upper end of the tube, and the tube is further provided with a simple depressible latching or locking switch button on the tube, so that a portion of the button will frictionally overlie the adjacent end portion of the cap assembled thereon to thus prevent energization of the heating tip while the tube and cap are assembled.

Claims

1. The combination with a disposable, self-contained cautery comprising a tubular housing, a source of electrical energy contained within the housing, a wire tip mounted in the housing and projecting from one end thereof, and an on-off switch activator carried by the housing for operating electrical connections between the energy source and said wire heater tip, of a removable tip-protective cover telescopically receivAble over said housing one end engageable with said switch activator when the cover is in telescoped position on the housing end to thereby block the switch activator in '"'"''"'"''"'"''"'"'off'"'"''"'"''"'"''"'"' position.

2. The invention defined claim 1, in which said switch activator is movable into '"'"''"'"''"'"''"'"'on'"'"''"'"''"'"''"'"' position under light finger pressure against the switch when the cover is removed from the housing.

3. The invention defined in claim 1 in which the on-off switch includes a control button mounted in an opening in a wall of the housing and adapted to be depressed under light finger pressure when the cover is removed from the housing.

4. The invention defined in claim 3 in which the control button is formed with a slot to receive the peripheral end portion of the cover when the cover is in telescoped position on the housing.

5. The invention defined in claim 2 in which the control button is provided with a heel portion opposite its slotted end, about which the button is fulcrumed under light finger pressure applied thereto to move to '"'"''"'"''"'"''"'"'on'"'"''"'"''"'"''"'"' position.

6. In a disposable, self-contained cautery, a tubular housing open at one end, a source of electrical energy within the housing, an electrode carrier plug formed of electrical insulating material in the open end of the housing, a pair of electrodes secured in the plug material and extending at their ends in spaced relation beyond the respective upper and lower extremities of the plug, a wire heater tip connecting the said upwardly projecting electrode extremities, one of said lower electrode extremities having electrical contact with one side of said energy source, a removable cover cap for telescopically enclosing the electrode upper extremities and said tip, a spring-loaded conductor connected with the opposite side of the energy source and normally urged out of contact with said other electrode, said tubular housing having a substantially triangular opening in its sidewall adjacent the lower extremity of said other one of said electrodes, and a substantially triangular-shaped switch button within said opening and operably by finger pressure to engage the spring-loaded conductor with said other electrode, said button having a bifurcating slot extending inwardly from the button apex portion to receive the lower edge portion of the cover member when assembled over the open end of the tubular housing, whereby to retain the spring-loaded conductor out of contact with said other lower electrode.