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 Title: |
US5002323:
Tweezer for tick removal
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Idsund, Ake; Stockholm, Sweden
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| Assignee: |
Instruments of Sweden, Inc., Stamford, CT
other patents from INSTRUMENTS OF SWEDEN, INC. (277260) (approx. 1)
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| Published / Filed: |
1991-03-26
/ 1989-12-04
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| Application Number: |
US1989000445179
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| IPC Code: |
Advanced:
A61B 17/30;
A61B 17/50;
Core:
more...
IPC-7:
A01M 3/00;
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| ECLA Code: |
A61B17/30; K61B17/50T;
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| U.S. Class: |
Current:
294/100;
606/210;
Original:
294/100;
606/210;
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| Field of Search: |
294/100,99.2
606/210
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| Priority Number: |
| 1989-06-22 |
SE1989000002272 |
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| Abstract: |
A tweezer for removal of ticks has two legs (10, 12), connected at one end (11) by a loop formed spring, pinched together partly within a movable cylinder (26), which through the action of a coil spring (24) is pushed against the bent portions of the legs' (10, 12) end parts in order to exert a preset squeezing force between the end parts and their sharp edged gripping points (19). By retracting the cylinder (26) the gripping points (19) are opened and when the cylinder (26) is released, the legs' (10, 12) end portions and their gripping points (19) can grasp the tick (40) and its head (38) with such a predetermined force that the tweezer will lose its grip if the tick's head (38) has not first been loosened by turning. The turning is brought about by turning the cylinder (26), which maintains the predetermined pinching force by the help of the coil spring (24).
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| Attorney, Agent or Firm: |
Bryan, Cave, McPheeters & McRoberts ;
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| Primary / Asst. Examiners: |
Focarino, Margaret A.; Kramer, Dean J.
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AU EP FI NO
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| Family: |
Show 12 known family members
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First Claim:
Show all 8 claims |
What is claimed is:
1. A tweezer for removal of ticks which have entered into skin, said tweezer comprising a pair of substantially flat spring like legs joined together at one end and having symmetrical gripping points at the opposite end thereof, said legs being symmetrical about the longitudinal axis of said tweezer and each having a first straight main part extending from said one end to form a second straight part acutely angled from said first straight main part at a first angle (VI) away from said longitudinal axis, said second straight part comprising a squeeze part which forms said first acute angle (VI) with said main part and which in turn merges with a third straight additional gripping part which forms a second acute angle (V2) with said gripping part and which at said opposite end is formed into said gripping point which is flat on the inside and obliquely angled on the outside and tapered into a double edged relatively thin knife-like point capable of reaching a tick head embedded in the skin, said symmetrical gripping points being usable as a knife to cut the skin around said embedded tick head while enabling easy visibility and access to said embedded tick head when disposed in a gripping position of said legs, said gripping points further being disposable in a ready position of said legs at a distance from a line which comprises an extension of said respective first straight main parts inside, said gripping points normally being spaced apart in said ready position after said straight main parts are brought together; said tweezer further comprising a coil spring and a movable cylinder means movable over said legs for moving said gripping points from said ready position to a grasping position of said tick head, said coil spring resiliently biasing said cylinder means distal end against said squeeze parts in said grasping position of said tick head for transferring a pinching power to said squeeze parts sufficient for forcing said squeeze parts together with a predetermined squeezing force sufficient to bias said normally spaced apart gripping points together to enable said gripping points to substantially touch each other in said grasping position of said tick head, said squeeze parts being at a third predetermined acute angle (V3) with respect to each other when said gripping points substantially touch each other in said grasping position of said tick head at the same time as said gripping parts are at a fourth predetermined angel (V4) with respect to each other, said predetermined squeezing force between said gripping parts and said gripping points being adjustable in said grasping position of said tick head and body so that the grip on the tick's body and head will be released when attempts are made at pulling if the tick's head has not loosened enough by turning the head a sufficient number of times.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 22 U.S. patent(s) that reference this one
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