A detachable maxillary bone hole impactor

Abstract

The utility model discloses a detachable maxillary bone hole impactor, which specifically relates to the field of medical devices. The utility model provides a detachable maxillary bone hole impactor, comprising an operating handle, an operating rod, a clamping device, a bone hole impact head, and an ejection device, wherein the front end of the operating handle is provided with a connecting hole, the rear end of the operating rod is arranged in the connecting hole, the clamping device is arranged between the operating handle and the operating rod, the bone hole impact head is arranged at the front end of the operating rod, the side wall of the bone hole impact head is provided with a cutting portion, and the ejection device is arranged at the front end of the bone hole impact head.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a detachable maxillary bone hole impactor. Background Art

[0002] After the loss of teeth in the posterior maxilla, the maxillary sinus becomes pneumatized, the alveolar ridge is gradually absorbed, and the bone volume in the posterior tooth area is seriously insufficient, making it difficult to perform implant restoration in this area. At present, the maxillary sinus floor lift is generally used to solve the problem of insufficient bone volume in the posterior maxillary tooth area. Among them, the indirect lifting of the maxillary sinus lining by the top impact method is a type of maxillary sinus floor lift. It uses a Summers shallow concave bone chisel or a bone compression impactor with a similar appearance to bluntly impact the maxillary sinus floor, causing a greenstick fracture of the cortical bone of the sinus floor, thereby causing the maxillary sinus floor fracture fragment and the sinus floor mucosa to shift upward, and then put a mixture of bone powder and blood in the implant channel and push it into the maxillary sinus, thereby lifting the maxillary sinus floor mucosa.

[0003] At present, the existing bone compression impactor generally includes a rod body and a rod handle, which are connected by a fixing device, and the top of the rod body is set to be sloped. Although this sloped rod body is more likely to impact the maxillary sinus floor and cause a greenstick fracture of the cortical bone of the sinus floor, the top of the rod body is relatively sharp, which can easily cause perforation of the maxillary sinus floor mucosa during the knocking process. Utility Model Content

[0004] The utility model aims to overcome the above technical problems and provide a detachable maxillary bone hole impactor.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a detachable maxillary bone hole impactor, comprising an operating handle, an operating rod, a clamping device, a bone hole impact head, and an ejection device, the front end of the operating handle is provided with a connecting hole, the rear end of the operating rod is arranged in the connecting hole, the clamping device is arranged between the operating handle and the operating rod, the bone hole impact head is arranged at the front end of the operating rod, the side wall of the bone hole impact head is provided with a cutting portion, and the ejection device is arranged at the front end of the bone hole impact head.

[0006] Furthermore, the ejection device includes an ejection cavity, an ejection rod, a hemispherical protrusion, and an ejection spring. The ejection cavity is arranged on the bone hole impact head, the ejection rod is arranged in the ejection cavity, the hemispherical protrusion is arranged at the front end of the ejection rod, the ejection spring is arranged in the ejection cavity, and one end of the ejection spring is pressed against the end of the ejection rod, wherein the hemispherical protrusion can extend out or retract into the ejection cavity.

[0007] Furthermore, the operating handle includes a gripping portion, a transition portion, and a connecting portion, and the gripping portion, the transition portion, and the connecting portion are sequentially connected, and the gripping portion, the transition portion, and the connecting portion are integrally formed.

[0008] Furthermore, the clamping device includes a clamping slot and a clamping block, the clamping slot is arranged on the side wall of the operating rod, the side wall of the connecting part of the operating handle is provided with a accommodating cavity, the clamping block is a T-shaped structure, and the clamping block is arranged in the clamping slot and the accommodating cavity.

[0009] Furthermore, the clamping block is made of stainless steel.

[0010] Furthermore, the clamping device also includes a magnet, and the magnet is arranged in the accommodating cavity.

[0011] Furthermore, it also includes a positioning device, which is arranged between the connecting hole and the operating rod.

[0012] Furthermore, the positioning device includes a square protrusion and a square groove, the square protrusion is arranged on the operating rod, the square groove is arranged on the connecting hole, and the square protrusion is installed in the square groove.

[0013] From the above description of the utility model, it can be seen that compared with the prior art, the detachable maxillary bone hole impactor provided by the utility model has the following advantages: an operating handle and an operating rod are provided, the front end of the operating handle is provided with a connecting hole, the rear end of the operating rod is arranged in the connecting hole, a clamping device is provided between the operating handle and the operating rod, the clamping device is used to fix the operating rod in the connecting hole to prevent the operating rod from detaching from the connecting hole, a bone hole impact head is provided at the front end of the operating rod, a cutting part is provided on the side wall of the bone hole impact head, the cutting part is used to cut the maxillary bone to form a bone hole, and an ejection device is provided at the front end of the bone hole impact head, the ejection device is used to eject the maxillary sinus floor mucosa forward after the bone hole is opened, thereby preventing the cutting part from cutting the maxillary sinus floor mucosa. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is an exploded view of the detachable maxillary bone hole impactor.

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0017] Figure 4 The utility model is a schematic diagram of the overall structure of the detachable maxillary bone hole impactor.

[0018] Figure 5 It is a side view of the detachable maxillary bone hole impactor of the utility model.

[0019] Figure 6 for Figure 5 Cross-section view along CC direction.

[0020] Figure 7 for Figure 6 Enlarged view of point F in the middle.

[0021] Figure 8 for Figure 5 Cross-section along DD direction. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present utility model.

[0023] Reference Figure 1-Figure 8 As shown, a detachable maxillary bone hole impactor comprises an operating handle 1, an operating rod 2, a clamping device 3, a bone hole impact head 4, and an ejection device 5. The front end of the operating handle 1 is provided with a connecting hole 131, and the rear end of the operating rod 2 is arranged in the connecting hole 131. The clamping device 3 is arranged between the operating handle 1 and the operating rod 2. The clamping device 3 is used to fix the operating rod 2 in the connecting hole 131 to prevent the operating rod 2 from being separated from the connecting hole 131. The bone hole impact head 4 is arranged at the front end of the operating rod 2. The side wall of the bone hole impact head 4 is provided with a cutting portion 41. The cutting portion 41 is used to cut the maxillary bone to form a bone hole. The ejection device 5 is arranged at the front end of the bone hole impact head 4. The ejection device 5 is used to eject the maxillary sinus floor mucosa forward after the bone hole is opened, so as to prevent the cutting portion 41 from cutting the maxillary sinus floor mucosa.

[0024] The ejection device 5 includes an ejection cavity 51, an ejection rod 52, a hemispherical projection 53, and an ejection spring 54. The ejection cavity 51 is arranged on the bone hole impact head 4. The ejection rod 52 is arranged in the ejection cavity 51. The hemispherical projection 53 is arranged at the front end of the ejection rod 52. The ejection spring 54 is arranged in the ejection cavity 51. One end of the ejection spring 54 is pressed against the end of the ejection rod 52. The hemispherical projection 53 can extend out or retract into the ejection cavity 51. Specifically, when the cutting portion 41 of the bone hole impact head 4 cuts a bone hole on the maxillary bone, the hemispherical projection 53 retracts into the ejection cavity 51. When the bone hole is opened, the hemispherical projection 53 extends out of the ejection cavity 51 to eject the maxillary sinus floor mucosa forward to prevent the cutting portion 41 from cutting the maxillary sinus floor mucosa.

[0025] The operating handle 1 includes a gripping portion 11, a transition portion 12, and a connecting portion 13. The gripping portion 11, the transition portion 12, and the connecting portion 13 are sequentially connected, and the gripping portion 11, the transition portion 12, and the connecting portion 13 are integrally formed.

[0026] The clamping device 3 includes a clamping slot 31 and a clamping block 32. The clamping slot 31 is arranged on the side wall of the operating rod 2. The side wall of the connecting portion 13 of the operating handle 1 is provided with a receiving cavity 132. The clamping block 32 is a T-shaped structure and is arranged in the clamping slot 31 and the receiving cavity 132.

[0027] The clamping block 32 is made of stainless steel. The clamping device 3 further includes a magnet 33, which is disposed in the accommodating cavity 132. When the clamping block 32 is installed in the clamping slot 31, the magnet 33 is connected to the clamping block 32, so that the clamping block 32 is adsorbed and fixed in the accommodating cavity 132.

[0028] A positioning device 6 is provided between the connection hole 131 and the operating rod 2, and the positioning device 6 is used to limit the rotation of the operating rod 2 and prevent the operating rod 2 from rotating around the central axis of the connection hole 131. The positioning device 6 includes a square protrusion 61 and a square groove 62, wherein the square protrusion 61 is provided on the operating rod 2, the square groove 62 is provided on the connection hole 131, and the square protrusion 61 is installed in the square groove 62.

[0029] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A detachable maxillary bone hole impactor, characterized in that: The invention comprises an operating handle, an operating rod, a clamping device, a bone hole impact head and an ejection device. The front end of the operating handle is provided with a connecting hole, the rear end of the operating rod is arranged in the connecting hole, the clamping device is arranged between the operating handle and the operating rod, the bone hole impact head is arranged at the front end of the operating rod, the side wall of the bone hole impact head is provided with a cutting portion, and the ejection device is arranged at the front end of the bone hole impact head.

2. The detachable maxillary bone hole impactor according to claim 1, characterized in that: The ejection device includes an ejection cavity, an ejection rod, a hemispherical protrusion, and an ejection spring. The ejection cavity is arranged on the bone hole impact head, the ejection rod is arranged in the ejection cavity, the hemispherical protrusion is arranged at the front end of the ejection rod, the ejection spring is arranged in the ejection cavity, one end of the ejection spring is pressed against the end of the ejection rod, wherein the hemispherical protrusion can extend out of or retract into the ejection cavity.

3. The detachable maxillary bone hole impactor according to claim 2, characterized in that: The operating handle comprises a gripping portion, a transition portion, and a connecting portion. The gripping portion, the transition portion, and the connecting portion are connected in sequence, and the gripping portion, the transition portion, and the connecting portion are integrally formed.

4. The detachable maxillary bone hole impactor according to claim 3, characterized in that: The clamping device includes a clamping slot and a clamping block. The clamping slot is arranged on the side wall of the operating rod. The side wall of the connecting part of the operating handle is provided with an accommodating cavity. The clamping block is a T-shaped structure and is arranged in the clamping slot and the accommodating cavity.

5. The detachable maxillary bone hole impactor according to claim 4, characterized in that: The clamping block is made of stainless steel.

6. The detachable maxillary bone hole impactor according to claim 5, characterized in that: The clamping device further comprises a magnet, and the magnet is arranged in the accommodating cavity.

7. The detachable maxillary bone hole impactor according to claim 6, characterized in that: It also includes a positioning device, which is arranged between the connecting hole and the operating rod.

8. The detachable maxillary bone hole impactor according to claim 7, characterized in that: The positioning device comprises a square protrusion and a square groove. The square protrusion is arranged on the operating rod, the square groove is arranged on the connecting hole, and the square protrusion is installed in the square groove.

Images