Bone curette for orthopedic surgery

Abstract

The utility model discloses a bone curette for orthopedic surgery, which comprises a bone curette body, one end of the bone curette body is a curette end, the other end of the bone curette body is provided with a handle, a drainage cavity is arranged in the bone curette body, the curette end is in a hollow spoon shape, the drainage cavity extends into the curette end, and the handle is arranged on the handle. A drainage hole is formed in one end, far away from the bone curette body, of the curette end; the bone curette has the advantages that after necrotic bones of a patient are curetted by the bone curette, if human tissue fluid exists, the position of the bone curette body is adjusted, the end head of the curette is in contact with the tissue fluid, the drainage hole enters the tissue fluid, and the tissue fluid is sucked out through negative pressure suction force formed by pulling the push rod outwards, so that in the curette operation, the bone curette is convenient to use. Other drainage instruments do not need to be replaced, the complexity is reduced, auxiliary measures are provided, and if the push rod is damaged, external suction removal can be carried out by unsealing the flow guide pipe to improve safety guarantee.

Description

Technical Field

[0001] The utility model relates to the field of orthopedic surgery, in particular to a bone curette for orthopedic surgery. Background Art

[0002] A bone curette is an orthopedic surgical instrument used to remove or scrape tissue or foreign matter from the surface of a bone during surgery. It is usually made of metal and has a curved or flat scraper-like head that can be used to scrape soft tissue, cartilage, or foreign matter from the bone. This tool is often used in orthopedic surgeries, such as joint replacement surgery or repair of fractures, to prepare the bone surface to make it suitable for receiving an implant or for bone healing.

[0003] In orthopedic surgery, after using a bone curette to scrape away necrotic tissue from the lesion, there will be residual tissue fluid, which provides an ideal environment for the growth of bacteria and other pathogens, increasing the risk of surgical site infection. Infection may lead to serious complications and prolong recovery time. At the same time, the formation of tissue fluid will interfere with the field of vision during surgery. In traditional surgery, tissue fluid needs to be cleaned with an aspirator or cotton balls and gauze, and surgical tools need to be replaced multiple times during the operation. For example, cotton balls and gauze need to be clamped and inserted with surgical forceps, which is a cumbersome and inconvenient process. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is that when the bone curette is used to scrape the necrotic tissue of the human body during orthopedic surgery, human tissue fluid often remains, and the tissue fluid residue provides an ideal environment for the growth of bacteria and other pathogens, increasing the risk of infection at the surgical site. Infection may lead to serious complications and prolong the recovery time. At the same time, the formation of tissue fluid will interfere with the visual field during surgery. In traditional surgery, tissue fluid needs to be cleaned with an aspirator or cotton gauze, and surgical tools need to be replaced many times during the operation. For example, cotton gauze needs to be clamped and inserted with surgical forceps, and the process is cumbersome and inconvenient.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] A bone scraper for orthopedic surgery comprises a bone scraper body, one end of the bone scraper body is a scraper end, the other end of the bone scraper body is provided with a handle, the bone scraper body is provided with a drainage cavity, the scraper end is in the shape of a hollow spoon, the drainage cavity extends to the inside of the scraper end, the scraper end away from the bone scraper body is provided with a drainage hole, a negative pressure cavity is provided in the handle, the negative pressure cavity is connected to the drainage cavity, a piston block and a push rod are provided in the negative pressure cavity, a pressing end is provided at the end of the push rod, the pressing end is in the shape of a disc, the radius of the pressing end is larger than the radius of the negative pressure cavity, and a guide tube is provided on one side of the bone scraper body.

[0009] Furthermore, a camera is provided at one end of the scraper end close to the bone scraper body.

[0010] Furthermore, the guide tube is connected to the interior of the drainage cavity, and a sealing cover is provided at one end of the guide tube.

[0011] Furthermore, an armrest is provided on one end of the bone curette body close to the handle.

[0012] Furthermore, the handle is provided with anti-slip grooves on the outside.

[0013] Furthermore, the piston block is made of rubber, and the push rod and the pressing end are made of plastic.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the utility model are:

[0016] After the bone curette has scraped the patient's necrotic bones, if there is human tissue fluid, the position of the bone curette body is adjusted so that the end of the curette contacts the tissue fluid, allowing the drainage hole to enter the tissue fluid, and the push rod is pulled outward to form a negative pressure suction to suck out the tissue fluid. This eliminates the need to replace other drainage instruments during the curettage operation, reducing complexity, and provides auxiliary measures. If the push rod is damaged, external suction can also be performed by unsealing the drainage tube to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 The front view of the utility model;

[0019] Figure 3 It is the AA section view;

[0020] Markings in the figure: 1-bone scraper body, 2-scraper end, 3-handle, 4-guide tube, 5-camera, 1a-drainage cavity, 1b-armrest, 2a drainage hole, 3a-negative pressure cavity, 3b-piston block, 3c-push rod, 3d-pressing end. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] See also Figure 1-3 The bone scraper for orthopedic surgery shown in the figure includes a bone scraper body 1, one end of the bone scraper body 1 is a scraper end 2, the other end of the bone scraper body 1 is provided with a handle 3, the bone scraper body 1 is provided with a drainage cavity 1a, the scraper end 2 is a hollow spoon shape, the drainage cavity 1a extends to the inside of the scraper end 2, the scraper end 2 is provided with a drainage hole 2a at one end away from the bone scraper body 1, a negative pressure cavity 3a is provided in the handle 3, the negative pressure cavity 3a is connected to the drainage cavity 1a, a piston block 3b and a push rod 3c are provided in the negative pressure cavity 3a, a pressing end 3d is provided at the end of the push rod 3c, the pressing end 3d is disc-shaped, and the radius of the pressing end 3d is greater than the radius of the negative pressure cavity 3a, and a guide tube 4 is provided on one side of the bone scraper body 1.

[0024] A camera 5 is provided at one end of the curette end 2 close to the bone curette body 1 , and the camera 5 plays an auxiliary role, providing visual assistance after entering the human body during orthopedic surgery.

[0025] The guide tube 4 is connected to the interior of the drainage cavity 1a. A sealing cover is provided at one end of the guide tube 4. The guide tube 4 is used for protection. When the drainage cavity 1a drains too much or the negative pressure cavity 3a is damaged and cannot be used, the guide tube 4 can be used for emergency treatment. The seal of the guide tube 4 is opened and an external suction device is introduced to drain the accumulated fluid.

[0026] An armrest 1b is provided at one end of the bone scraper body 1 near the handle 3. The armrest 1b, the negative pressure chamber 3a, the piston block 3b, the push rod 3c and the pressing end 3d constitute a syringe structure, that is, a medical syringe is simulated. The push rod 3c drives the piston block 3b to be pulled out to form a negative pressure to generate suction, and further the accumulated fluid is sucked into the negative pressure chamber 3a through the drainage chamber 1a. Then, the bone scraper body 1 is held and separated from the human body, and the bone scraper body 1 is turned upside down to pull out the push rod 3c. The push rod 3c drives the piston block 3b to separate from the negative pressure chamber 3a, and then the accumulated fluid is poured out of the negative pressure chamber 3a, and then the piston block 3b and the push rod 3c are pushed in, and the pressing end 3d is used to facilitate pulling out and pushing in.

[0027] The handle 3 is provided with anti-slip grooves on the outside to facilitate taking.

[0028] The piston block 3b is made of rubber, and the push rod 3c and the pressing end 3d are made of plastic.

[0029] The specific working principle is as follows: when in use, hold the handle 3, insert the scraper end 2 into the human body for bone scraping surgery, and use the camera 5 for assistance. After fluid is generated during the scraping process, place the scraper end 2 vertically to make the drainage hole 2a contact with the accumulated fluid, and then slowly pull out the piston block 3b through the pressing end 3d and the push rod 3c to form a negative pressure, so that the accumulated fluid flows into the negative pressure chamber 3a along the drainage chamber 3a, then take out the bone scraper body 1, and completely pull out the piston block 3b and the push rod 3c from the negative pressure chamber 3a to pour out the accumulated fluid.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bone curette for orthopedic surgery, characterized in that: The invention comprises a bone scraper body (1), one end of the bone scraper body (1) is a scraper end (2), the other end of the bone scraper body (1) is provided with a handle (3), a drainage cavity (1a) is provided in the bone scraper body (1), the scraper end (2) is in the shape of a hollow spoon, the drainage cavity (1a) extends to the inside of the scraper end (2), the end of the scraper end (2) away from the bone scraper body (1) is provided with a drainage hole (2a), a negative pressure cavity (3a) is provided in the handle (3), the negative pressure cavity (3a) is connected to the drainage cavity (1a), a piston block (3b) and a push rod (3c) are provided in the negative pressure cavity (3a), a pressing end (3d) is provided at the end of the push rod (3c), the pressing end (3d) is in the shape of a disc, the radius of the pressing end (3d) is greater than the radius of the negative pressure cavity (3a), and a guide tube (4) is provided on one side of the bone scraper body (1).

2. A bone curette for orthopedic surgery according to claim 1, characterized in that: A camera (5) is provided at one end of the scraper end (2) close to the bone scraper body (1).

3. The bone curette for orthopedic surgery according to claim 1, characterized in that: The flow guide tube (4) is in communication with the interior of the drainage cavity (1a), and a sealing cover is provided at one end of the flow guide tube (4).

4. The bone curette for orthopedic surgery according to claim 1, characterized in that: The bone scraper body (1) is provided with a handrail (1b) at one end close to the handle (3).

5. The bone curette for orthopedic surgery according to claim 1, characterized in that: The handle (3) is provided with anti-slip grooves on the outside.

6. The bone curette for orthopedic surgery according to claim 1, characterized in that: The piston block (3b) is made of rubber material, and the push rod (3c) and the pressing end (3d) are made of plastic material.

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