An auxiliary tool in transzygomatic implant surgery

Abstract

An auxiliary tool for transzygomatic implant surgery comprises: a maxillary sinus mucosa protection part, a drill needle guide ring part, a maxillary sinus lateral wall retention part, a connecting rod part, an extraoral indicating rod part, and a handle part in sequence; the maxillary sinus mucosa protection part is used to protect the maxillary sinus mucosa; the drill needle guide ring part is a drill needle preparation channel, which is used to guide the drill needle preparation direction; the maxillary sinus lateral wall retention part is fixed by the maxillary sinus lateral bone wall; the connecting rod part is used to connect the intraoral and extraoral parts, and the whole is U-shaped, which can accommodate the lips and keep the use of this auxiliary tool undisturbed. The extraoral indicating rod part is parallel to the drill needle guide ring part and is used to indicate the intraoral axial direction of the intraoral drill needle; the handle part is the hand-held part when the auxiliary tool is used. The present invention prevents the maxillary sinus mucosa from being scratched during transzygomatic implant surgery, and can protect the maxillary sinus mucosa when preparing the hole. It effectively guides the site of the preparation hole for transzygomatic implantation, ensures that the preparation hole is located on the zygomatic bone, and prevents surgical accidents of penetrating the eye socket.

Description

[Technical field]

[0001] The invention belongs to the technical field of medical devices, and specifically refers to an auxiliary tool in transzygomatic implant surgery. [Background technology]

[0002] As more and more people are missing teeth, dental implants, as the internationally recognized "third set of teeth for humans", have gradually become popular on major networks and in dental hospitals, and various types of publicity have emerged one after another. More and more people are beginning to accept dental implants and feel the benefits they bring.

[0003] However, although dental implants are good for restoration, not everyone can meet the conditions for dental implants. For example, in cases of severe alveolar bone absorption or osteoporosis, dental implants are very difficult to perform. A more advanced method in clinical practice is to use zygomatic bone fixation to fix dental implants, which can better solve the problem that conventional implants cannot achieve. This method is called "transzygomatic implantation", also known as "soilless cultivation" technology.

[0004] Transzygomatic implantation is a technique for fixing dental implants through the zygomatic bone. It is also a relatively difficult implantation technique today. It involves implanting specific implants into the diamond-shaped zygomatic bone located below the eye socket. Usually, patients with severe jaw bone resorption need two transzygomatic implants and 23 ordinary implants vertically implanted in the anterior teeth area to achieve a relatively good retention effect for half-mouth restoration. Figure 1 As shown. For patients with very severe maxillary bone resorption, four transzygomatic implants can be used for implant retention. This technology is suitable for edentulous patients who have undergone maxillary resection, severe maxillary atrophy, very little bone volume, and conventional bone grafting and internal and external lifting cannot meet the implant conditions. The advantage of transzygomatic implants is that they avoid additional surgeries such as bone harvesting and bone grafting, and fixed teeth can be worn for a short time on the day of implantation, which can achieve immediate weight bearing and greatly shorten the treatment time. It is an effective alternative treatment method in cases of severe maxillary bone resorption, and can also be used for the repair of maxillary bone defects, which not only avoids a large number of bone grafting surgeries, but also can significantly shorten the implant treatment cycle.

[0005] Although the transzygomatic implant technique has obvious advantages, it is very difficult. The implants used are 3 to 4 times larger than traditional implants, so a slight error can lead to serious deviation of the end. The adjacent arteries, veins, and nerves in the surgical area must be understood in detail. Once these anatomical structures are damaged, it may lead to a variety of complications, such as eye damage or nerve-related dysfunction.

[0006] At present, few dental institutions in China carry out transzygomatic implants. The technology of transzygomatic implants has extremely strict requirements on hardware, software and doctors. It must be supported by professional oral CBCT to provide three-dimensional support to ensure accuracy. A detailed surgical plan is required before the operation. Not only the condition of the bilateral zygomatic bones should be understood, but also routine systemic and oral and maxillofacial specialist examinations should be performed to exclude the existence of relevant contraindications to ensure the smooth implementation of the implant surgery.

[0007] At present, only a very small number of doctors in China perform transzygomatic implant surgery, and those who perform transzygomatic implant surgery all operate manually. When preparing the implant hole, the drill needle is easy to scratch the maxillary sinus mucosa, which may cause surgical complications such as inflammation. When preparing the implant hole manually, it is easy to produce human deviation, and the final implant placement site is inconsistent with the planned site (optimal site). [Summary of the invention]

[0008] The technical problem to be solved by the present invention is to provide an auxiliary tool for transzygomatic implant surgery, which can help doctors increase the accuracy, stability and safety when performing transzygomatic surgery.

[0009] The present invention is achieved in that:

[0010] An auxiliary tool for transzygomatic implant surgery, comprising: a maxillary sinus mucosa protection part, a drill needle guide ring part, a maxillary sinus lateral wall retention part, a connecting rod part, an extraoral indicator rod part, and a handle part;

[0011] The maxillary sinus mucosa protection part is used to protect the maxillary sinus mucosa when preparing the zygomatic implant hole;

[0012] The drill needle guide ring is a drill needle hole preparation channel, which is used to guide the drill needle hole preparation direction;

[0013] The outer wall retaining part of the maxillary sinus utilizes the outer bone wall of the maxillary sinus for retention;

[0014] The connecting rod part is used to connect the intra-oral part and the extra-oral part of the auxiliary tool. The whole part is U-shaped and can accommodate the lips, so that the use of the auxiliary tool can be kept undisturbed.

[0015] The extraoral indicating rod is parallel to the drill needle guide ring and is used to indicate the intraoral axial direction of the intraoral drill needle;

[0016] The handle portion is the hand-held portion of the auxiliary tool when it is used.

[0017] Furthermore, the retaining portion of the outer wall of the maxillary sinus is a slot structure, and the slot structure is clamped on the outer bone wall of the maxillary sinus for retention.

[0018] Furthermore, the auxiliary tool is integrally formed.

[0019] Furthermore, the auxiliary tool is designed in sections, and the components are connected into a whole by screws.

[0020] Furthermore, the auxiliary tool is made of titanium alloy or cobalt-chromium alloy.

[0021] The advantages of the present invention are: 1. It prevents the maxillary sinus mucosa from being scratched during transzygomatic implant surgery and can protect the maxillary sinus mucosa when preparing the hole. 2. It effectively guides the site of the transzygomatic implant hole preparation to ensure that the hole preparation position is on the zygomatic bone and prevents surgical accidents of penetrating the eye socket.

Brief Description of the Drawings

[0022] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of two implants in transzygomatic implant surgery.

[0024] Figure 2 It is a structural schematic diagram of the present invention.

[0025] Figure 3 It is a schematic diagram of the use state of the present invention. [Specific implementation method]

[0026] like Figure 2 As shown, an auxiliary tool 100 for transzygomatic implant surgery includes, in sequence: a maxillary sinus mucosa protection portion 1, a drill needle guide ring portion 2, a maxillary sinus lateral wall retention portion 3, a connecting rod portion 4, an extraoral indicator rod portion 5, and a handle portion 6.

[0027] The maxillary sinus mucosa protection part 1 is used to protect the maxillary sinus mucosa when preparing the perforation for the zygomatic implant.

[0028] The drill needle guide ring 2 is a drill needle hole preparation channel, which is used to guide the drill needle hole preparation direction.

[0029] The retaining portion 3 of the outer wall of the maxillary sinus is a slot structure, which is clamped on the outer bone wall of the maxillary sinus for retention.

[0030] The connecting rod 4 is used to connect the intraoral part and the extraoral part of the auxiliary tool. The whole is U-shaped and can accommodate the lips to keep the use of the auxiliary tool undisturbed.

[0031] The extraoral indicating rod 5 is parallel to the drill needle guide ring 2 and is used to indicate the intraoral axial direction of the intraoral drill needle.

[0032] The handle portion 6 is the hand-held portion of the auxiliary tool when in use.

[0033] The auxiliary tool 100 is integrally formed or designed in sections, with the components connected into a whole by screws.

[0034] The auxiliary tool 100 is made of metals with good biocompatibility such as titanium alloy or cobalt-chromium alloy.

[0035] The present invention is used during transzygomatic implant surgery to assist in the implementation of the transzygomatic implant surgery. Figure 3 As shown, the main steps are:

[0036] Step 1: After opening a window on the outer wall of the maxillary sinus and peeling off the maxillary sinus mucosa, the transzygomatic implant tool of the present invention is placed into the maxillary sinus, the maxillary sinus mucosa can be pushed open to the outside of the drilling path, and the maxillary sinus mucosa protection part 1 is held against the maxillary sinus to protect the maxillary sinus mucosa when preparing the transzygomatic implant hole.

[0037] Step 2: Fix the groove of the outer wall portion 3 of the maxillary sinus on the bone plate of the outer wall of the maxillary sinus.

[0038] Step 3: Insert the transzygomatic implant drill into the annular hole of the drill guide ring 2 of the transzygomatic implant tool device.

[0039] Step 4: Use the extraoral indicator rod 5 to evaluate the drill hole preparation site, and perform the transzygomatic implant preparation operation under the protection of the maxillary sinus mucosa protection part 1.

[0040] The invention prevents the maxillary sinus mucosa from being scratched during transzygomatic implant surgery, can protect the maxillary sinus mucosa when preparing a hole, effectively guides the site of the transzygomatic implant hole, ensures that the hole is located on the zygomatic bone, and prevents surgical accidents of penetrating the eye socket.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An auxiliary tool for transzygomatic implant surgery, characterized by: Including in order: Maxillary sinus mucosa protection part, drill needle guide ring part, maxillary sinus lateral wall retention part, connecting rod part, extraoral indicator rod part, and handle part; The maxillary sinus mucosa protection part is used to protect the maxillary sinus mucosa when preparing the zygomatic implant hole; The drill needle guide ring is a drill needle hole preparation channel, which is used to guide the drill needle hole preparation direction; The outer wall retaining part of the maxillary sinus utilizes the outer bone wall of the maxillary sinus for retention; The connecting rod part is used to connect the intraoral and extraoral parts of the auxiliary tool, and is U-shaped as a whole, which can accommodate the lips and keep the use of the auxiliary tool undisturbed; The extraoral indicating rod is parallel to the drill needle guide ring and is used to indicate the intraoral axial direction of the intraoral drill needle; The handle is the hand-held part of the auxiliary tool when it is used; The retaining part of the outer wall of the maxillary sinus is a slot structure, and the slot structure is fixed on the outer bone wall of the maxillary sinus for retention; The auxiliary tool is integrally formed.

2. An auxiliary tool for transzygomatic implant surgery according to claim 1, characterized in that: The auxiliary tool is designed in sections, and the components are connected into a whole by screws.

3. An auxiliary tool for transzygomatic implant surgery according to claim 1 or 2, characterized in that: The auxiliary tool is made of titanium alloy or cobalt-chromium alloy.

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