Minimally invasive periosteum tension reduction knife for oral implant

Abstract

In a dental implant surgery, bone grafting is needed due to insufficient bone mass, and periosteum tension reduction is needed during bone grafting, so that the minimally invasive periosteum tension reduction device is an instrument for periosteum minimally invasive tension reduction during dental implant, and aims to reduce the pain of a patient during periosteum tension reduction during implant and improve the operation convenience of a doctor. In the current oral implant surgery, the existing implant periosteum distension reduction instrument is only provided with a surgical blade clinically at present, and a doctor needs to add a vertical incision in the periosteum distension reduction process, so that the pain of a patient is greatly increased, the operation time of the doctor is greatly prolonged, and the operation difficulty of the doctor is also increased. According to the minimally invasive periosteum tension reducing instrument for oral implantation, vertical incisions of an implantation area are reduced, the direction and the movement track of a traditional scalpel are changed, the minimally invasive purpose is achieved, and the consequences that the vertical incisions of gingival mucosa are increased by the traditional scalpel and the soft tissue of a patient is excessively injured due to too deep cutting of the traditional scalpel are not brought to a doctor; compared with the prior art, the device has the advantages of being minimally invasive, reducing the pain of a patient, shortening the operation time, facilitating operation of a doctor, improving the operation efficiency, removing a vertical incision during periosteum tension reduction, reducing postoperative suture wound cracking, preventing the risk of infection caused by bone meal exposure, providing an effective solution for complex oral implant cases, and having a wide application prospect. And the treatment experience and satisfaction degree of the patient are improved.

Description

I. Technical Field: This is an instrument used for periosteal tension reduction during dental implant surgery. It is designed to reduce patient discomfort and improve the ease of operation for dentists when periosteal tension reduction is required during dental implant procedures. II. Background Technology: In current dental implant surgery, many patients require bone grafting due to insufficient alveolar bone volume. After grafting, the original amount of alveolar mucosa is often insufficient to cover the wound. The inner surface of the mucosa is a layer of periosteum, which lacks elasticity. Therefore, it is necessary to perform a periosteal tension-reducing incision on the inner periosteum to allow the mucosa to stretch and cover the wound. Currently, the only periosteal tension-reducing instrument used in implant surgery is a scalpel blade. During the periosteal tension-reducing process, surgeons need to make a vertical incision to allow the traditional scalpel blade to cut through the periosteum. This vertical incision significantly increases patient pain and prognosis. Furthermore, the scalpel blade cannot precisely cut through the 0.5 mm thick periosteum, greatly increasing the surgeon's operation time and surgical difficulty. This severely restricts the development of dental implant surgery and negatively impacts the patient's treatment experience. III. Summary of the Invention:

[0001] 1. Purpose of the Invention: The purpose of this invention is to overcome the shortcomings of existing dental instruments and provide a convenient and adaptable minimally invasive periosteal tension-reducing instrument to simplify the surgical procedure, improve surgical efficiency and accuracy, reduce surgical risks, and provide patients with higher quality dental implant treatment services.

[0002] 2. Technical Solution: The minimally invasive periosteal tension-reducing knife for oral implantation of this invention mainly consists of a handle and a blade assembly. The handle has anti-slip texture for easy gripping and operation by the doctor. One end of the handle is connected to the blade assembly, and the other end is a minimally invasive blunt periosteal dissection head. The blade assembly consists of a blade, a connecting body, and a guide plate. The guide plate facilitates observation of the blade direction during surgery and also facilitates connection between the blade assembly and the handle when using a bare hand. The blade in the blade assembly has a 30° upward angle, ensuring the blade is perpendicular to the periosteum during operation. The total blade length is 3 mm, and the blade has rounded corners at both ends. The top of the blade assembly connecting the blade is 1.5 mm thick and 4 mm wide. The connecting rod of the blade assembly has length markings. To facilitate observation of the depth of penetration into the tissue, each short marking is 5 mm, and each long marking is 10 mm. The total length of the blade assembly is 30 mm. The blade of the blade assembly is designed to be 0.6 mm thick according to the thickness of the periosteum of the human maxilla and mandible. Because the exposure of the blade is fixed, it will not cause discomfort to the doctor. This design avoids the consequences of traditional scalpels cutting too deeply, causing excessive damage or even rupture of soft tissue in patients. The scalpel head assembly is connected to the handle by threads. The handle can be sterilized at high temperatures. The other end of the handle is a minimally invasive blunt periosteal dissector, which is 4 mm wide and 2 mm thick. The front has four raised serrated structures, 1 mm high, angled upwards at 30°, with the two middle serrations higher than the two on the sides, forming an arc. Its connecting rod is also marked with 5-10-15-20-25-30 mm markings. The periosteal blunt dissector head and handle are integrated into one unit. The blade assembly is a disposable medical device, for one patient only. The handle is made of medical-grade stainless steel or titanium alloy with a brushed metal anti-slip surface. The blade assembly is made of medical-grade resin with a metal blade. The handle diameter is 8 mm, the thread diameter of the blade assembly is 5 mm, and the handle length is 100 mm. The minimally invasive periosteal tension-reducing knife is 30 mm long (excluding the thread) and is sterilely individually packaged. The minimally invasive periosteal blunt dissector is 30 mm long. The total length of the device after connection is 160 mm.

[0003] 3. Beneficial Effects: Compared with existing technologies, this invention has many advantages: it is minimally invasive, requires no additional vertical incision, maintains a constant cutting depth, reduces patient pain, shortens healing time, reduces surgical time, facilitates surgeon operation, reduces surgical risks, and improves surgical efficiency. It also reduces the risk of postoperative wound dehiscence and infection caused by bone powder exposure. Furthermore, it provides an effective solution for complex dental implant cases, enhancing patient treatment experience and satisfaction. IV. Description of the accompanying drawings (Please refer to the attached drawings in the instruction manual for the pictures).

[0004] Figure 1 In traditional surgical case 1, the blue dotted line indicated by the arrow represents the vertical incision made.

[0005] Figure 2 In Case 2 of traditional surgery, the arrow points to a traditional surgical blade making a vertical incision.

[0006] Figure 3 In Case 2, after making a vertical incision, the mucosa was flipped open and the periosteum was cut with a traditional scalpel to reduce tension.

[0007] Figure 4 Overall diagram of the handle and blade assembly for a minimally invasive periosteal tension-reducing knife for dental implantation.

[0008] Figure 5 Enlarged view of the blade assembly: the short marking line is 5 mm, the long marking line is 10 mm, the total length is 30 mm, the bottom end is threaded and connected to the handle, the arrow points to the guide plate, which can clearly show the direction of the blade and make it easy to screw the handle in with bare hands.

[0009] Figure 6 Viewed from the side, the blades are seen to be angled upwards.

[0010] Figure 7 Front view of the controller.

[0011] Figure 8 A magnified frontal view of the blunt dissection of the periosteum using the handle.

[0012] Figure 9 A magnified side view of the blunt dissection of the periosteum using the handle.

[0013] Figure 10 The blue dotted line represents the horizontal incision along the alveolar ridge. The black line on the model indicated by the arrow represents the area where, with a traditional scalpel blade, not only a horizontal incision along the alveolar ridge is required, but also a vertical incision at the black line.

[0014] Figure 11 The mucosa is flipped open through a horizontal incision at the alveolar ridge, and the oral implant minimally invasive periosteal tension-reducing knife of this invention is used, eliminating the need for a vertical incision.

[0015] Figure 12 After using a minimally invasive tension-reducing knife, a minimally invasive blunt periosteal separator is used to pull the periosteal incision site to achieve the purpose of periosteal tension reduction. V. Detailed Implementation Methods

[0016] 1. Instrument assembly: Simply rotate the cutter head assembly and handle clockwise until resistance is felt.

[0017] 2. Surgical preparation: The doctor can determine whether periosteal decompression is needed based on the patient's CBCT images and clinical examination, and decide whether to use this instrument.

[0018] 3. Surgical Procedure: For patients requiring periosteal tension reduction, the nurse opens the sterile packaging and places the sterile blade assembly on the surgical instrument table. The surgeon connects the sterilized handle and blade assembly, inserting the blade of the minimally invasive periosteal tension reduction knife into the periosteal tissue to the required depth. The blade contacts the periosteum, and gentle pressure is applied as the blade moves from mesial to distal. The periosteum can be incised once or multiple times. During the procedure, the other end of the minimally invasive periosteal tension reduction knife, the blunt periosteum dissection head, can be inserted into the periosteum incision and bluntly pulled towards the alveolar ridge to ensure the periosteum is incised and pulled to achieve the desired tension reduction effect. If the desired tension reduction effect is not achieved, the above steps can be repeated.

[0019] 4. Postoperative maintenance: The blade assembly of the periosteal tension reducer is a disposable consumable and can be directly discarded into the sharps bin of medical waste after use; the handle can be sterilized and reused.

Claims

1. An oral implant minimally invasive periosteum tension relieving knife, comprising a handle and a minimally invasive knife head group, characterized in that the minimally invasive knife head group comprises a connecting rod, a minimally invasive blade, a guide plate for observing the direction of the blade, and the handle has a minimally invasive periosteum blunt separator at one end and is connected to the knife head group at the other end.

2. The method of claim 1, wherein, The guide plate also facilitates the connection of the knife head group and the handle in a bare-handed condition.

3. The method of claim 1, wherein, The knife head of the knife head group has an angle of 30° upward, the total length of the blade is 3 mm, and the two ends of the blade are rounded.

4. The method of claim 1, wherein, The knife head group has a length scale, each short mark point is 5 mm, and the long mark point is 10 mm, and the total length of the knife head group is 30 mm.

5. The method of claim 1, wherein, The height of the blade of the knife head group is designed to be 0.6 mm, and the length is 3 mm.

6. The method of claim 1, wherein, The knife head group is connected to the handle by a thread, the handle can be high-temperature sterilized, and the knife head group is a disposable medical supply.

7. The method of claim 1, wherein, The minimally invasive periosteum blunt separator is used for blunt separation of the periosteum, can perform periosteum blunt tension relief without opening the mucosa, is made of the same material as the handle, has an arc sawtooth shape, can be high-temperature sterilized, has a minimally invasive periosteum blunt separation head at the other end, has a width of 4 mm, a total thickness of 2 mm, four convex sawtooth structures with a height of 1 mm on the front surface, an upward angle of 30°, and two sawteeth in the middle higher than the two on the sides, and has an arc shape.

8. The method of claim 1, wherein, The handle is made of medical-grade stainless steel or titanium alloy, the surface of the handle is a metal wire-drawing anti-slip surface, the knife head group is made of medical-grade resin plus a metal blade, the diameter of the handle is 8 mm, the length of the handle is 100 mm, the length of the minimally invasive periosteum tension relieving knife is 30 mm, the length of the minimally invasive periosteum blunt separator is 30 mm, and the total length of the connected instrument is 160 mm.

9. The method of claim 1, wherein, The oral implant minimally invasive periosteum tension relieving knife does not need to increase a vertical incision and is minimally invasive in the surgery of bone augmentation and periosteum tension relief.

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