Abstract
A dental forceps that include an elongated handle and a pair of tooth engaging members or jaws extending out of the one end of the handle and a post located in the handle with a disc at the top with a ball at the other end of the post. The post ball end inserts into the post ball holder to provide a stable support so that the dentist has leverage to extract the tooth straight out. The post disc and post ball provide the forceps with side-to-side and back-and-forth movement, thus allowing the forceps to align to the growth angle of the tooth to be extracted.
Claims
1. A dental forceps for extracting teeth comprising: a pair of forceps arms, each arm comprising a handle end and a jaw end, the arms pivotally connected at a point intermediate either end; a post having a lower part with a post ball and an upper part with a post disc, the post disc having a slot in a top portion with stops; a post disc holder; a post ball holder; a stop pin is screwed through the forceps arms and into the post disc holder; wherein the post disc at the upper part of the post is attached to the forceps arms by the post disc holder and the post ball at a lower end of the post is attached into the post ball holder and the stop pin is configured to go through the slot in the top of the post disc holder and engage the stops to allow movement of approximately 4 to 6 degrees in backward and forward directions; whereby, the dental forceps is configured to form a pivot point for leverage when the handle end of the forceps are pushed down to extract the tooth straight out.
2. The dental forceps of claim 1, wherein the post ball holder is configured to allow the dental forceps to go back and forth and side to side approximately 5 degrees from a center point of the post ball holder.
3. The dental forceps of claim 1, wherein the post and the jaw ends are aligned when the post is located in the post ball holder so that the dental forceps is configured to provide leverage for allowing extraction of a tooth straight out.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) FIG. 1 is a perspective of the forceps in the post ball holder, in accordance with the invention, clasping a back molar
(2) FIG. 2 is a perspective showing the forceps in the post ball holder with the post having a disc on the top with a stop and moved back in the post ball holder as shown in FIG. 1
(3) FIG. 3 is a perspective showing the forceps in the post ball holder with the post having a disc on the top with a stop and moved forward in the post ball holder as shown in FIG. 1 and FIG. 2
(4) FIG. 4 is a top view of the post ball holder as shown in FIG. 1, FIG. 2 and FIG. 3
(5) FIG. 5 is a lateral cross-section view of the post ball holder as shown in FIG. 1, FIG. 2 and FIG. 3
(6) FIG. 6 is a top view of the forceps with the post disc holder as shown in FIG. 1, FIG. 2 and FIG. 3
(7) FIG. 7 is a side view of the forceps with the disc holder and post as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 6
(8) FIG. 8 is a front view of the post disc holder as shown in FIG. 1, FIG. 2, FIG. 3, FIG. 6, and FIG. 7
(9) FIG. 9 is a top view of the post disc holder as shown in FIG. 1, FIG. 2, FIG. 3 FIG. 6 and FIG. 7 and FIG. 8
(10) FIG. 10 is a side view of a beaks forceps with a post and post disc holder
(11) FIG. 11 is a cross section of the post disc holder as shown in FIG. 10
REFERENCE NUMERALS
(12) 10. Forceps 12. Forceps Jaws 14. Post 16. Post Ball 18. Stop Pin 20. Spring 22. Ball Bearing 24. Post Disc 26. Post Disc Holder 28. Post Ball Holder 30. Set Screw 32. Tooth 34. Flat Head Screw 36. Long Set Screw 38. Counter Sink Opening 40. Post Ball Holder Center Rod
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
(13) FIG. 1 shows a perspective view of the forceps 10, with a right side handle and left side handle having a post 14 with a post disc 24 on the upper part of the post 14. The post disc 24 is held in place by the post disc holder 26 that is lined up in the center of the forceps jaws 12. The post disc 24 has a slot in the top to form a stop when the stop pin 18 is screwed through the forceps 10 handle and into the post disc holder 26. The lower part of the post 14 has a post ball 16 that fits into the post ball holder 28. The post 14 is held in place in the post ball holder 28 by a ball bearing 22 held in place with a spring 20 and set screw 30 in three places around the post ball holder 28. There is a post ball holder center rod 40 that can be adjusted by a long set screw 36. When the forceps 10 is placed into the post ball holder 28 and is aligned with the tooth 32, that can be done by the counter sink opening 38 allowing the post to move, the dentist now has the leverage to extract the tooth 32 straight out.
(14) FIG. 2 and FIG. 3 show a closer view of FIG. 1 with the post 14 moved backward and forward in the post ball holder 28 because of the counter sink opening 38 at the top of the post ball holder 28 and the post disc 24 having the stop pin 18.
(15) FIG. 4 shows a top view of the post ball holder 28 as shown in FIG. 1, FIG. 2, and FIG. 3. It also shows the placement of the ball bearings 22 at 120 degrees on the round post ball holder 28. The post ball 16 is shown in the center of the post ball holder 28.
(16) FIG. 5 shows a cross section view of the post ball holder 28 as shown in FIG. 1, FIG. 2, and FIG. 3. It shows the post ball 16 in held in place in the post ball holder 28 by a ball bearing 22 held in place with a spring 20 and set screw 30 in three places around the post ball holder 28. There is a post ball holder center rod 40 that can be adjusted by a long set screw 36 during manufacturing.
(17) FIG. 6 shows a top view of the forceps 10 with the forceps jaws 12, as shown in FIG. 1,FIG. 2, and FIG. 3, with the post disc holder 26 held in place with a flat head screw 34.
(18) FIG. 7 is a side view of the forceps 10 with forceps jaws 12 holding a tooth 32, as shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 6 with the post disc 24 in the post disc holder 26, and the stop pin 18. The range of movement of the post 14 is shown to be 10 degrees.
(19) FIG. 8 is a front view of the post disc holder 26 as shown in FIG. 1, FIG. 2, FIG. 3, FIG. 6, and FIG. 7. This shows the post 14 placed in the post disc holder 26 and held in place with a flat head screw 34.
(20) FIG. 9 shows a bottom view of the post disc holder 26 as seen in FIG. 1, FIG. 2, FIG. 3, FIG. 6, and FIG. 7. This shows the forceps 10 with the post disc holder 26 centered in the forceps and held in place with a flat head screw 34.
(21) FIG. 10 is a perspective view of the forceps 10, where the handles are upper and lower instead of side by side, having a post 14 with a post disc 24 on the upper part of the post 14. The post disc 24 is held in place by the post disc holder 26 that is lined up in the center of the forceps jaws 12 on the lower handle. The post disc 24 has a slot in the top to form a stop when the stop pin 18 is screwed through the forceps 10 handle and into the post disc holder 26. The lower part of the post 14 has a post ball 16 that fits into the post ball holder 28. The post 14 in held in place in the post ball holder 28 by a ball bearing 22 held in place with a spring 20 and set screw 30 in three places around the post ball holder 28. There is a post ball holder center rod 40 that can be adjusted by a long set screw 36. When the forceps 10 is placed into the post ball holder 14 and is aligned with the teeth, that can be done by the counter sink opening 38 allowing the post to move, the dentist now has the leverage to extract the tooth straight out.
(22) FIG. 11 shows a front view of the post disc holder 26 and post 14 with the post ball 16 and the post disc 24 as shown in FIG. 10. This shows the post 14 placed in the post disc holder 26 so that is aligns in the center of the forceps handle 10 and held in place with a flat head screw 34 and the stop pin 18 in the post disc holder.
CONCLUSION
(23) Tooth extracting tools are well known and have been in use for many years. When a conventional dental forceps is used to extract a tooth the dentist must apply considerable holding force to the forceps while simultaneously applying extracting force to the instrument. Any slipping or loosening of the grip on the tooth may cause the crown of the tooth to be broken off at or near the gum line, requiring surgical removal of the remaining portion of the tooth below the gum line. Excessive gum damage may also result as well as more pain to the patient.
(24) By having a post on the forceps with a ball end that pivots on the rod in the post ball holder and the counter sink opening of the holder provides leverage to extract the tooth straight out, not to twist and turn. The distance where the forceps grip the tooth and where the post with the ball end fits the half ball is the pivot point which is used for leverage to extract the tooth straight out with less pain. The post ball holder can be attached to the swing arm that is attached to the dental chair using a locking mechanism to provide a stable support.
(25) It is important to remember that when the ligaments, nerves and blood vessels are severed and when the tooth is extracted straight out the chances are lessened of breaking the root of the tooth. The dentist arm does not have the leverage that the forceps with a post has to extract the tooth straight out. It would be easier for the dentist to extract a molar because of the leverage. The post in the forceps provides a stable support and a leverage point that is better than the dentist just using his arm and forceps. With the post there is more accuracy in the extraction of the tooth. The post ball holder provides a positive position for the extraction. As seen the FIG. 1 the handles are side by side while FIG. 10 shows a forceps with the handles are upper and lower. The post disc holder is shaped differently for the forceps handle in FIG. 1 and FIG. 10 but function is the same. In both cases the post disc holder is located in the center of the forceps jaw.
