Novel osteotome

Abstract

The utility model discloses a novel osteotome which comprises an osteotome rod body, the rear end of the osteotome rod body is coaxially combined with a holding part used for conveniently and stably applying force to hold and improving the holding posture, and a plurality of hook-shaped elastic pieces are evenly distributed and fixed on the inner surface of a bone scraping end at the front end of the osteotome rod body. The osteotome has the advantages that the holding part comprises the block-shaped handle and the connecting sleeve, and the block-shaped handle is detachably combined at the rear end of the osteotome rod body through the connecting sleeve, so that the block-shaped handle replaces an original straight handle to serve as a holding position; the osteotome rod body can be stably held for surgical operation by holding the block-shaped handle with the hand, meanwhile, the holding posture is changed when the block-shaped handle is held with the hand, and the osteotome rod body can be stably applied with force to remove and trim necrotic bones in the process of using the osteotome rod body.

Description

Technical Field

[0001] This utility model relates to the field of orthopedic tools, specifically to a novel bone scalpel. Background Technology

[0002] Avascular necrosis of the femoral head is one of the common and difficult diseases to treat in orthopedics. Although artificial joint replacement has made great progress and the lifespan of artificial joints is 10-20 years, even in the most ideal case (a fourth-generation ceramic joint that can last for 30 years), it cannot be guaranteed that the artificial joint of young patients can be used for life. Total hip replacement is only an option for late-stage treatment. Therefore, hip preservation treatment is particularly important.

[0003] In hip-preserving treatment options, bone grafting is a surgical method that preserves the femoral head. Bone grafting is a commonly used surgical treatment for avascular necrosis of the femoral head and is suitable for young cases of early-stage avascular necrosis of the femoral head. Bone grafting can be divided into vascularized bone grafting and non-vascularized bone grafting. Specifically, non-vascularized bone grafting is simpler and easier to perform, and is more widely used in clinical practice. Its purpose is to reduce intraosseous pressure, provide structural support to the subchondral bone and articular cartilage, and improve the late-stage deformity of the collapsed femoral head.

[0004] Specifically, in the bone grafting procedure, a fenestration tool is needed to perform a fenestration operation on the femoral neck of the dislocated femoral head. Then, a bone scalpel is used to remove and trim the necrotic part. Next, a bone grafting tool is used to deliver the bone graft to the fenestrated position in the femoral head. However, existing bone scalpels are designed such that: 1. The handle at the rear end of the bone scalpel is usually designed with a rubber, silicone, or wooden straight handle. This makes it difficult to hold the bone scalpel stably during the surgical operation. At the same time, the hand needs to be in a tight grip, which makes it difficult to apply stable force to remove and trim the necrotic bone.

[0005] 2. The surface of the scraping position at the tip of the bone scalpel is usually smooth. This makes it difficult for the necrotic bone to adhere stably to the smooth surface of the scraping position during the removal and trimming of the bone. As a result, it is not easy to remove the necrotic bone smoothly when taking out the bone scalpel, resulting in low cleaning efficiency. Utility Model Content

[0006] The purpose of this utility model is to provide a new type of bone scalpel to solve the above problems. The holding part includes a block-shaped handle and a connecting sleeve. The block-shaped handle is detachably assembled to the rear end of the bone scalpel shaft through the connecting sleeve. In this way, the block-shaped handle replaces the original straight handle as the holding position, which makes it easier to hold the bone scalpel shaft stably by holding the block-shaped handle with the hand for surgical operations. See the following description for details.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention provides a novel bone knife, including a bone knife shaft, wherein the rear end of the bone knife shaft is coaxially assembled with a gripping part for convenient and stable force application and improved grip posture;

[0009] Multiple hook-shaped spring pieces are evenly distributed and fixed on the inner surface of the scraping end at the front end of the bone knife handle.

[0010] Preferably, the gripping part includes a block-shaped handle and a connecting sleeve, wherein the block-shaped handle is detachably assembled to the rear end of the bone knife shaft via the connecting sleeve.

[0011] Preferably, the block handle is a quincunx-shaped handle.

[0012] Preferably, the connecting sleeve is an internally threaded sleeve, and the connecting sleeve is coaxially assembled with the rear end of the bone cutter body by means of threaded engagement.

[0013] Preferably, the scraper tip is spoon-shaped and the diameter of the outer opening is between 6 mm and 10 mm.

[0014] Preferably, the scraper tip can be an upwardly curved tip, a downwardly curved tip, or a straight tip.

[0015] Preferably, the hook-shaped springs are all barbed and the hook heads point towards the gripping part.

[0016] Using the aforementioned novel bone scalpel, specifically during bone grafting surgery, when the scalpel handle is used to remove and trim necrotic bone, a gripping part is attached to the rear end of the scalpel handle. This gripping part includes a block-shaped handle and a connecting sleeve. The block-shaped handle is detachably attached to the rear end of the scalpel handle via the connecting sleeve. This allows the block-shaped handle to replace the original straight handle as the gripping position, facilitating stable handling of the scalpel handle during surgical operations. Simultaneously, gripping the block-shaped handle also changes the grip posture, making it easier to use the scalpel handle during procedures. A stable force is applied to remove and trim necrotic bone. Because multiple hook-shaped springs are evenly distributed and fixed on the inner surface of the scraping end at the front end of the bone scalpel handle, each hook-shaped spring is barbed with its head pointing towards the handle. During the removal and trimming of necrotic bone using the scraping end of the bone scalpel handle, the hook-shaped springs hook the necrotic bone, ensuring its stable attachment to the inner surface of the scraping end. This ensures that the scraping end and necrotic bone can be removed together during the removal of the bone scalpel handle, improving the efficiency of cleaning the necrotic femoral head and helping to shorten the surgical time.

[0017] The beneficial effects are as follows: 1. The gripping part of this utility model includes a block handle and a connecting sleeve. The block handle can be detachably combined with the rear end of the bone scalpel rod through the connecting sleeve. In this way, the block handle replaces the original straight handle as the gripping position, which makes it easier to hold the bone scalpel rod for surgical operations by holding the block handle with the hand. At the same time, when the hand holds the block handle, the gripping posture is also changed, which makes it easier to apply force stably during the use of the bone scalpel rod to remove and trim necrotic bone.

[0018] 2. Multiple hook-shaped springs are evenly distributed and fixed on the inner surface of the scraping tip at the front end of the bone scalpel handle. The hook-shaped springs are all barbed with the hooks pointing towards the handle. When using the scraping tip to remove and trim necrotic bone, the hook-shaped springs can hook the necrotic bone, which can stably attach the necrotic bone to the inner surface of the scraping tip. This ensures that the scraping tip and necrotic bone can be removed together when the bone scalpel handle is removed, which helps to improve the cleaning efficiency of the femoral head necrosis site and helps to shorten the operation time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an overall isometric schematic diagram of this utility model. Figure 1 ;

[0021] Figure 2 This is an overall isometric schematic diagram of this utility model. Figure 2 ;

[0022] Figure 3 This is a utility model Figure 2 A magnified view of part A;

[0023] Figure 4 This is a utility model Figure 1 A frontal view diagram;

[0024] Figure 5 This is a utility model Figure 1 A left-view diagram;

[0025] Figure 6 This is a utility model Figure 1 A top-down view.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Bone scalpel handle; 2. Bone scraper tip; 3. Hook-shaped spring; 4. Handle; 401. Block-shaped handle; 402. Connecting sleeve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] See Figures 1-6 As shown, this utility model provides a novel bone scalpel, including a bone scalpel shaft 1. The rear end of the bone scalpel shaft 1 is coaxially assembled with a gripping part 4 for convenient and stable force application and improved grip posture. Specifically, the gripping part 4 includes a block-shaped handle 401 and a connecting sleeve 402. The block-shaped handle 401 is detachably assembled to the rear end of the bone scalpel shaft 1 through the connecting sleeve 402. The purpose of this arrangement is to replace the original straight handle with the block-shaped handle 401 as the gripping position, so as to facilitate stable gripping of the bone scalpel shaft 1 for surgical operations by holding the block-shaped handle 401 with the hand. At the same time, when the hand holds the block-shaped handle 401, the grip posture is also changed, which facilitates stable force application during the use of the bone scalpel shaft 1 for the removal and trimming of necrotic bone.

[0030] See Figures 1-3 As shown, multiple hook-shaped springs 3 are evenly distributed and fixed on the inner surface of the scraping end 2 at the front end of the bone scalpel handle 1. Preferably, the hook-shaped springs 3 are all barbed and the hooks point towards the holding part 4. The purpose of this arrangement is that, during the process of removing and trimming necrotic bone with the scraping end 2, the necrotic bone can be stably attached to the inner surface of the scraping end 2 by hooking the necrotic bone with the hook-shaped springs 3, ensuring that the scraping end 2 and the necrotic bone can be removed together during the process of removing the bone scalpel handle 1.

[0031] See Figures 1-3As shown, the gripping part 4 and the scraper end 2 have been optimized as follows. Specifically, for the gripping part 4, the block handle 401 is a quincunx-shaped handle, so that the block handle 401 has a shape and style that meets the needs of use, and can improve the grip posture when the hand holds the block handle 401. Optionally, the connecting sleeve 402 is an internally threaded sleeve, and the connecting sleeve 402 is coaxially assembled with the rear end of the bone knife rod 1 by means of thread engagement. This setting makes it easy to quickly assemble and detach the connecting sleeve 402 and the bone knife rod 1 by twisting. Specifically, the scraper tip 2 is spoon-shaped with an outer opening diameter ranging from 6mm to 10mm. This design allows the scraper tip 2 to meet the operational needs of removing and trimming necrotic bone. Optionally, the scraper tip 2 can be curved upwards, curved downwards, or straight, allowing for various design options to meet different usage scenarios and improve the applicability of the bone scraper tool.

[0032] With the above structure, specifically during bone grafting surgery, when using the bone scalpel handle 1 to remove and trim necrotic bone, a handle 4 is attached to the rear end of the bone scalpel handle 1. The handle 4 includes a block-shaped handle 401 and a connecting sleeve 402. The block-shaped handle 401 is detachably attached to the rear end of the bone scalpel handle 1 via the connecting sleeve 402. This allows the block-shaped handle 401 to replace the original straight handle as the gripping position, facilitating stable handling of the bone scalpel handle 1 during surgical operations. Simultaneously, gripping the block-shaped handle 401 also changes the grip posture, making it easier to use the bone scalpel handle 1. During the process, stable force is applied to remove and trim the necrotic bone. Because multiple hook-shaped springs 3 are evenly distributed and fixed on the inner surface of the scraping end 2 at the front end of the bone scalpel handle 1, and the hook-shaped springs 3 are all barbed with the hooks pointing towards the handle 4, when the scraping end 2 at the front end of the bone scalpel handle 1 is used to remove and trim the necrotic bone, the necrotic bone can be stably attached to the inner surface of the scraping end 2 by hooking the necrotic bone with the hook-shaped springs 3. This ensures that the scraping end 2 and the necrotic bone can be removed together when the bone scalpel handle 1 is removed, which is beneficial to improving the cleaning efficiency of the femoral head necrosis site and helps to shorten the operation time.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel bone scalpel, comprising a bone scalpel shaft (1), characterized in that: The rear end of the bone knife rod (1) is coaxially combined with a gripping part (4) for convenient and stable force application and improved grip posture; Multiple hook-shaped spring pieces (3) are evenly distributed and fixed on the inner surface of the scraping end (2) at the front end of the bone knife rod (1).

2. The novel bone scalpel according to claim 1, characterized in that: The gripping part (4) includes a block handle (401) and a connecting sleeve (402), wherein the block handle (401) is detachably attached to the rear end of the bone knife rod body (1) via the connecting sleeve (402).

3. The novel bone scalpel according to claim 2, characterized in that: The block handle (401) is a quincunx-shaped handle.

4. The novel bone scalpel according to claim 3, characterized in that: The connecting sleeve (402) is an internally threaded sleeve, and the connecting sleeve (402) is coaxially assembled at the rear end of the bone knife rod body (1) by means of threaded engagement.

5. The novel bone scalpel according to claim 1, characterized in that: The scraper tip (2) is spoon-shaped and the diameter of the outer opening ranges from 6 mm to 10 mm.

6. The novel bone scalpel according to claim 5, characterized in that: The scraper tip (2) can be an upwardly curved tip, a downwardly curved tip, or a straight tip.

7. A novel bone scalpel according to any one of claims 1-6, characterized in that: The hook-shaped springs (3) are all barbed and the hooks point towards the gripping part (4).

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