A posterior bone graft funnel

Abstract

The utility model discloses a kind of post bone funnel, including hollow pole and conical funnel, the conical funnel is fixedly connected in the one end of the hollow pole, the recess is provided in the connecting place of the conical funnel with the hollow pole. By the conical funnel and hollow pole of integrated molding, recess of cooperation connecting place is set to make hollow pole can be connected with puncher, prevent conical funnel from falling off, facilitate use.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a post-grafting bone funnel. Background Technology

[0002] Bone grafting funnel surgical instruments are auxiliary tools used in bone grafting surgery, primarily for the precise delivery of bone graft material prepared by the surgeon to the recipient surgical site. These instruments typically have a conical metal structure, with a large-diameter bone graft receiving interface at the top and a finely designed directional delivery channel at the bottom. In clinical practice, the surgeon introduces the bone graft material through the top opening, utilizing its tapering lumen structure to achieve directional aggregation of the bone material. Finally, the bone graft is precisely delivered to the predetermined grafting area through the micro-channel at the end. As a standardized instrument in orthopedic surgery, this funnel device not only effectively improves the accuracy of bone material placement, but its optimized lumen design also significantly reduces material loss during the procedure, thus ensuring maximum utilization of limited bone resources. It has significant clinical application value in surgeries such as spinal fusion and bone defect repair.

[0003] In existing technologies, when the bone graft rod is pulled out, it is easy to pull the bone graft funnel out and fall off, which is inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to propose a post-grafting funnel to solve the problem in the prior art where the bone grafting rod is easily pulled out and falls off, making it inconvenient to use.

[0005] Therefore, this utility model provides a post-grafting funnel, including a hollow rod and a conical funnel, wherein the conical funnel is fixedly connected to one end of the hollow rod, and a groove is provided at the connection between the conical funnel and the hollow rod.

[0006] Preferably, the hollow rod and the conical funnel are integrally formed.

[0007] Preferably, the material of the conical funnel is medical-grade stainless steel.

[0008] Preferably, the smoothness of the inner wall of the hollow rod is less than or equal to 0.4 μm.

[0009] Preferably, it also includes an inserter, with the hollow rod inside the inserter.

[0010] Preferably, the injector includes an injecting tube, a handle, and a locking block. The injecting tube is hollow inside, the handle is fixedly installed on the injecting tube, and the locking block is fixedly installed at one end of the injecting tube.

[0011] Preferably, the card block is connected to the groove.

[0012] Preferably, the length of the hollow tube is greater than the length of the injection tube.

[0013] Preferably, it also includes a bone graft rod, which is located inside the hollow rod.

[0014] Preferably, the bone graft rod includes an insertion rod and a handle, with the handle fixedly connected to one end of the insertion rod.

[0015] Beneficial effects:

[0016] 1. This utility model provides a post-grafting funnel, which uses an integrally formed conical funnel and a hollow rod. The groove at the connection point allows the hollow rod to be connected with the implanter, preventing the conical funnel from falling off and facilitating its use.

[0017] 2. The funnel body of this utility model is made of medical stainless steel with an inner wall smoothness of less than or equal to 0.4μm, which reduces material adhesion, can be adapted to different bone graft materials, and reduces inner wall residue, making disinfection or sterilization more thorough. It is compatible with traditional bone particles, DBM, and synthetic bone replacement materials, reducing the need for instrument replacement during surgery.

[0018] 3. With the help of the implanter, after the fusion device is implanted, bone grafting can be performed through the post-grafting funnel, so that the implanted bone and the endplate can fit better and promote the bone graft fusion effect. 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 a schematic diagram of the structure of an embodiment 1 of the post-grafting funnel provided by this utility model.

[0021] Figure 2 This is a schematic diagram illustrating the use of an embodiment 1 of the post-grafting funnel provided by this utility model.

[0022] In the diagram, 1-hollow rod, 2-conical funnel, 21-groove, 3-inserter, 31-insertion tube, 32-handle, 33-locking block, 4-bone graft rod, 41-push rod, 42-handle. Detailed Implementation

[0023] The following detailed description of preferred embodiments of the present invention, along with the included examples, will make the content of the present invention more readily understood. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.

[0024] Example 1:

[0025] Provided such as Figures 1-2 The illustrated post-grafting funnel includes a hollow rod 1 and a conical funnel 2. The conical funnel 2 is fixedly connected to one end of the hollow rod 1, and a groove 21 is provided at the connection between the conical funnel 2 and the hollow rod 1. The hollow rod 1 and the conical funnel 2 are integrally formed. The material of the conical funnel 2 is medical-grade stainless steel. The smoothness of the inner wall of the hollow rod 1 is less than or equal to 0.4 μm. The integrally formed conical funnel 2 and hollow rod 1, along with the groove 21 at the connection, allow the hollow rod 1 to connect with the implanter, preventing the conical funnel 2 from falling off and facilitating use. The smooth inner wall reduces material adhesion, allowing for compatibility with different bone graft materials, reducing inner wall residue, and enabling more thorough disinfection or sterilization. It is compatible with traditional bone particles, DBM, and synthetic bone substitutes, reducing intraoperative instrument changes, ensuring material residue is <0.5%, and reducing postoperative cleaning time by 40%.

[0026] It also includes an inserter 3, with a hollow rod 1 inside the inserter 3. The inserter 3 includes an insert tube 31, a handle 32, and a locking block 33. The insert tube 31 is hollow inside. The handle 32 is fixedly installed on the insert tube 31, and the locking block 33 is fixedly installed on one end of the insert tube 31. The locking block 33 is engaged with the groove 21. The length of the hollow tube is greater than the length of the insert tube 31.

[0027] It also includes a bone graft rod 4, which is inside the hollow rod 1. The bone graft rod 4 includes an insertion rod 41 and a handle 42, with the handle 42 fixedly connected to one end of the insertion rod 41.

[0028] Working principle: Insert the hollow tube into the inserter 3, and insert the locking block 33 into the groove 21 to ensure a tight fit. Confirm the position and size of the bone graft site, select the appropriate bone graft material, and load the bone graft material into the conical funnel 2 of the bone graft funnel. Place the head of the hollow rod 1 of the bone graft funnel on the bone graft site, and use the bone graft rod 4 to push the conical funnel 2 of the bone graft funnel so that the bone graft material gradually flows into the bone graft site.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A post-grafting bone funnel, characterized in that, It includes a hollow rod and a conical funnel, the conical funnel being fixedly connected to one end of the hollow rod, and a groove being provided at the connection between the conical funnel and the hollow rod.

2. The post-grafting funnel according to claim 1, characterized in that, The hollow rod and the conical funnel are integrally formed.

3. The post-grafting funnel according to claim 1, characterized in that, The conical funnel is made of medical-grade stainless steel.

4. A post-grafting funnel according to claim 1, characterized in that, The smoothness of the inner wall of the hollow rod is less than or equal to 0.4 μm.

5. A post-grafting funnel according to claim 1, characterized in that, It also includes an inserter, with the hollow rod inside the inserter.

6. A post-grafting funnel according to claim 5, characterized in that, The injector includes an injecting tube, a handle, and a locking block. The injecting tube is hollow inside. The handle is fixedly installed on the injecting tube, and the locking block is fixedly installed at one end of the injecting tube.

7. A post-grafting funnel according to claim 6, characterized in that, The card block is connected to the groove.

8. A post-grafting funnel according to claim 6, characterized in that, The length of the hollow rod is greater than the length of the driven tube.

9. A post-grafting infundibulum according to any one of claims 5-8, characterized in that, It also includes a bone graft rod, which is located inside the hollow rod.

10. A post-grafting funnel according to claim 9, characterized in that, The bone graft rod includes an insertion rod and a handle, with the handle fixedly connected to one end of the insertion rod.

Images