Bone cement pusher
By designing a bone cement pusher containing cone, cone and insert, the problems of small capacity of the existing pusher and difficult to control the residual bone cement are solved, and precise control of the push amount and sealing of the connecting tube are achieved, which is suitable for PVP surgery.
Patent Information
- Application Number
- CN202421149752.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-24
AI Technical Summary
During use, the existing bone cement pusher has small capacity and frequent replacement, and the residual bone cement after pushing is difficult to control, which is difficult to apply to PVP surgery.
A bone cement pusher is designed, including a push cylinder and a sealing sleeve. A cone cylinder is set at the lower end of the push cylinder, and a cone and insert block are set below the piston. The cone and the piston and insert block are made of rubber material. The push resistance is reduced through contact with the cone cylinder. The insert block pushes the remaining bone cement in the connecting tube. The sealing sleeve is connected to the adsorption groove through the magnetic suction block to ensure accurate control of the push quantity and sealing of the connecting tube.
It realizes reducing push resistance, facilitates manual push, reduces residue in the connection tube, avoids secondary re-change push, and enables accurate control of push volume, suitable for PVP surgery.
Smart Images
Figure CN222676540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a bone cement pusher. Background Art
[0002] Bone cement is the common name for bone adhesive, a medical material used in orthopedic surgery. It has such a popular name due to some of its physical properties and its appearance and properties after solidification, which are quite similar to white cement used in construction and decoration. The main component of bone cement is polymethyl methacrylate, which is mainly used in artificial joint replacement surgery. Bone cement needs to be pushed with a pusher during use.
[0003] During use, the existing bone cement pusher generally uses a 1ml pusher for pushing. However, the capacity of the 1ml pusher is too small, resulting in the need to replace it after each injection, which is not suitable for PVP surgery. The commonly used 5ml pusher is generally provided with a connecting tube at the front end, and the contact surface between the piston and the inner bottom of the pusher is generally flat, resulting in a small amount of bone cement remaining in the connecting tube at the front end of the pusher after the piston is pushed to the bottom, requiring a second replacement and pushing, which not only delays the operation time, but also makes it difficult to control the amount during pushing. Therefore, we have introduced a new bone cement pusher. Utility Model Content
[0004] The main purpose of the utility model is to provide a bone cement pusher, which can effectively solve the problems in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A bone cement pusher comprises a pushing cylinder and a sealing sleeve, wherein a scale bar is provided on the front surface of the pushing cylinder, a cone cylinder is fixedly connected to the lower end of the pushing cylinder, a connecting tube is fixedly connected to the lower end of the cone cylinder, a connecting ring is fixedly connected to the lower part of the outer surface of the pushing cylinder, four adsorption grooves are provided at the lower end of the connecting ring, handles are provided on the upper left part and the upper right part of the outer surface of the pushing cylinder, a pushing rod is inserted and connected to the middle part of the upper end of the pushing cylinder, a pushing handle is fixedly connected to the upper end of the pushing rod, a piston is fixedly connected to the lower end of the pushing rod, a cone is fixedly connected to the lower end of the piston, an insert block is fixedly connected to the lower end of the cone, and four magnetic blocks are fixedly connected to the upper end of the sealing sleeve.
[0007] Preferably, the scale bar is of 5 ml specification.
[0008] Preferably, the diameter of the piston is the same as the inner diameter of the push cylinder.
[0009] Preferably, the curvature of the outer surface of the cone is the same as the curvature of the inner surface of the pushing cylinder.
[0010] Preferably, the plug block is interpenetratingly connected to the connecting pipe.
[0011] Preferably, the four magnetic blocks are magnetically connected to the four adsorption slots respectively.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] 1. The scale bar of the push cylinder is 5ml. A cone is set at the lower end of the push cylinder, and a cone and an insert are set under the piston. The curvature of the outer surface of the cone is the same as the curvature of the inside of the cone. The cone, the piston and the insert are all made of rubber. When pushing bone cement, the contact between the cone and the cone can reduce the pushing resistance, which is convenient for manual pushing. The insert can push out the bone cement in the connecting tube, reduce the residual inside the connecting tube, avoid secondary replacement and pushing, so that the pushing amount can be accurately controlled, which is suitable for use in pvp surgery;
[0014] 2. A sealing sleeve is arranged at the lower end of the pushing tube, and the sealing sleeve is magnetically connected to four adsorption grooves through four magnetic blocks, so that the sealing sleeve can be easily sleeved on the outer surface of the connecting pipe. After the pushing is completed, the sealing sleeve can be used to seal the connecting pipe in time to avoid the impurities remaining on the connecting pipe being exposed to the external environment and causing pollution. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a bone cement pusher of the utility model;
[0016] Figure 2 This is a schematic diagram of the disassembled structure of a bone cement pusher of the utility model;
[0017] Figure 3 This is a schematic diagram of the planar structure of a bone cement pusher of the utility model;
[0018] Figure 4 The utility model is a schematic diagram of the overall structure of a sealing sleeve of a bone cement pusher.
[0019] In the figure: 1. push cylinder; 2. sealing sleeve; 3. scale bar; 4. cone cylinder; 5. connecting tube; 6. connecting ring; 7. adsorption groove; 8. handle; 9. push rod; 10. push handle; 11. piston; 12. cone; 13. plug block; 14. magnetic block. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] See also Figure 1-4 , the utility model provides a technical solution:
[0024] A bone cement pusher comprises a pushing cylinder 1 and a sealing sleeve 2. A scale bar 3 is provided on the front surface of the outer surface of the pushing cylinder 1. A cone cylinder 4 is fixedly connected to the lower end of the pushing cylinder 1. A connecting tube 5 is fixedly connected to the lower end of the cone cylinder 4. A connecting ring 6 is fixedly connected to the lower part of the outer surface of the pushing cylinder 1. Four adsorption grooves 7 are provided at the lower end of the connecting ring 6. Handles 8 are provided on the upper left part and the upper right part of the outer surface of the pushing cylinder 1. A pushing rod 9 is inserted and connected to the middle part of the upper end of the pushing cylinder 1. A pushing handle 10 is fixedly connected to the upper end of the pushing rod 9. A piston 11 is fixedly connected to the lower end of the pushing rod 9. A cone 12 is fixedly connected to the lower end of the piston 11. An insert block 13 is fixedly connected to the lower end of the cone 12. Four magnetic blocks 14 are fixedly connected to the upper end of the sealing sleeve 2.
[0025] In this embodiment, the scale bar 3 is of 5ml specification, the diameter of the piston 11 is the same as the internal diameter of the pushing cylinder 1, the curvature of the outer surface of the cone 12 is the same as the internal curvature of the pushing cylinder 1, and the cone 12, the piston 11 and the insert 13 are all made of rubber. When pushing the bone cement, the cone 12 can reduce the pushing resistance when it contacts the cone cylinder 4, which is convenient for manual pushing, and the insert 13 can push out the bone cement in the connecting tube 5, reduce the residual inside the connecting tube 5, avoid secondary replacement and pushing, so that the pushing amount can be accurately controlled.
[0026] In this embodiment, the plug block 13 is inserted and connected with the connecting tube 5, and the four magnetic blocks 14 are magnetically connected with the four adsorption grooves 7 respectively, so as to facilitate the sealing sleeve 2 to be sleeved on the outer surface of the connecting tube 5. After the pushing is completed, the sealing sleeve 2 can be used to seal the connecting tube 5 in time to prevent the impurities remaining on the connecting tube 5 from being exposed to the external environment and causing pollution.
[0027] It should be noted that the utility model is a bone cement pusher. During use, the scale bar of the pushing cylinder 1 is of 5ml specification. By arranging a cone cylinder 4 at the lower end of the pushing cylinder 1, and arranging a cone 12 and an insert block 13 below the piston 11, the curvature of the outer surface of the cone 12 is the same as the curvature inside the cone cylinder 4, and the cone 12, the piston 11 and the insert block 13 are all made of rubber. When pushing the bone cement, the cone 12 can reduce the pushing resistance when it contacts the cone cylinder 4, which is convenient for manual pushing, and the insert block 13 can push out the bone cement in the connecting tube 5, reduce the residual inside the connecting tube 5, avoid secondary replacement and pushing, so that the pushing amount can be accurately controlled, which is suitable for use in pvp surgery. By arranging a sealing sleeve 2 at the lower end of the pushing cylinder 1, the sealing sleeve 2 is magnetically connected to the four adsorption grooves 7 through four magnetic blocks 14, respectively, so that the sealing sleeve 2 can be conveniently sleeved on the outer surface of the connecting tube 5. After the pushing is completed, the sealing sleeve 2 can be used to seal the connecting tube 5 in time to avoid the impurities remaining on the connecting tube 5 from being exposed to the external environment and causing pollution.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A bone cement pusher, comprising a pusher tube (1) and a sealing sleeve (2), characterized in that: The front surface of the outer surface of the push cylinder (1) is provided with a scale bar (3), the lower end of the push cylinder (1) is fixedly connected to a cone cylinder (4), the lower end of the cone cylinder (4) is fixedly connected to a connecting pipe (5), the lower part of the outer surface of the push cylinder (1) is fixedly connected to a connecting ring (6), the lower end of the connecting ring (6) is provided with four adsorption grooves (7), the upper left part and the upper right part of the outer surface of the push cylinder (1) are both provided with handles (8), the middle part of the upper end of the push cylinder (1) is inserted and connected with a push rod (9), the upper end of the push rod (9) is fixedly connected to a push handle (10), the lower end of the push rod (9) is fixedly connected to a piston (11), the lower end of the piston (11) is fixedly connected to a cone (12), the lower end of the cone (12) is fixedly connected to an insert block (13), and the upper end of the sealing sleeve (2) is fixedly connected to four magnetic blocks (14).
2. A bone cement pusher according to claim 1, characterized in that: The scale bar (3) is of 5 ml specification.
3. A bone cement pusher according to claim 1, characterized in that: The diameter of the piston (11) is the same as the inner diameter of the push cylinder (1).
4. A bone cement pusher according to claim 1, characterized in that: The curvature of the outer surface of the cone (12) is the same as the curvature of the inner surface of the pushing cylinder (1).
5. A bone cement pusher according to claim 1, characterized in that: The insert block (13) is interpenetratingly connected to the connecting pipe (5).
6. A bone cement pusher according to claim 1, characterized in that: The four magnetic blocks (14) are magnetically connected to the four adsorption grooves (7) respectively.