Aspirator with replaceable head
By designing a flexible porous suction section and a modular connection structure, the problem of insufficient friction and inability to quickly replace clogged surgical suction devices has been solved, achieving higher tissue friction and blood adsorption capacity, thus ensuring the smooth progress of surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SHUANGLONG MEDICAL EQUIPMENT CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-24
AI Technical Summary
Existing surgical suction devices have insufficient tissue friction and poor blood adsorption capacity. Furthermore, their integral structure makes them difficult to replace quickly when blocked, affecting surgical outcomes.
It adopts a flexible porous adsorption part and a modular connection structure. The adsorption part can be detachably connected to the body of the suction device and can be quickly replaced by a tenon, a rotating buckle or a threaded connection.
It increases tissue friction, enhances blood adsorption capacity, and allows for rapid replacement of the adsorption unit in case of blockage, reducing tissue damage and improving surgical efficiency.
Smart Images

Figure CN224156084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and specifically to a replaceable head suction device, that is, a replaceable suction device for surgical procedures. Background Technology
[0002] Current surgical suction devices mostly use metal or plastic tips, which have problems such as insufficient tissue friction and poor blood suction capacity. In addition, the one-piece structure makes it difficult to quickly replace the device when it becomes clogged. Especially in delicate surgeries, the rigid tip can easily cause tissue damage, and blood splatter can affect the clarity of the surgical field. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a replaceable-head suction device with the following technical characteristics: simple structure, convenient use, high tissue friction, good blood adsorption capacity, quick replacement of the adsorption head in case of blockage, and low risk of tissue damage.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] This utility model discloses a suction device with a replaceable head, comprising:
[0006] The main body of the attractant has a through-flow attraction channel inside;
[0007] The adsorption part with adsorption function is preferably detachably connected to the distal end of the suction device body;
[0008] The connecting structure is located at the junction of the adsorption part and the main body of the suction device, enabling quick assembly and disassembly.
[0009] The operating handle is connected to the proximal end of the suction device body, and a negative pressure tube interface is provided at the tail of the handle.
[0010] Preferably, the adsorption part is flexible and has multiple pores.
[0011] Preferably, the adsorption part is a cotton head.
[0012] Preferably, the adsorption part is a sponge head.
[0013] Preferably, the adsorption part is a non-woven fabric head.
[0014] Preferably, the adsorption part is connected to the main body of the suction device via an intermediate connector, which is a plastic rod with lateral suction holes, and the adsorption part is detachably sleeved on the plastic rod at the suction holes.
[0015] Preferably, the connection structure is an installation structure located at the junction of the plastic rod and the suction body.
[0016] Preferably, the mounting structure is a tenon structure, and the tenon structure is an elastic tenon.
[0017] Preferably, the mounting structure is a rotating snap-fit.
[0018] Preferably, the mounting structure is a threaded connection structure.
[0019] Beneficial effects: The head of the suction device uses a replaceable suction part, which can absorb blood seeping from the tissue during surgery and has good friction to push and pull various tissues without easily damaging them; if the head becomes blocked during surgery, the suction part can be replaced immediately. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a perspective view of the overall structure of this utility model. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] This invention provides a suction device with a replaceable head. Through the flexible suction part 1, it achieves blood adsorption while ensuring tissue traction, and the modular connection structure enables rapid intraoperative replacement. Its core innovations are: 1) replacing the traditional rigid head with a flexible porous suction part 1; 2) the unique rapid connection structure enables immediate intraoperative replacement.
[0026] like Figure 1-2 The illustration shows a specific embodiment of a surgical suction device with a replaceable head. This embodiment includes a surgical suction device with a replaceable suction part 1, comprising:
[0027] The main body of the attractant has a through-flow attraction channel inside;
[0028] The adsorption part 1, which has an adsorption function, is detachably connected to the distal end of the suction device body.
[0029] The connecting structure is located at the junction of the adsorption part 1 and the main body of the suction device, enabling quick assembly and disassembly.
[0030] The operating handle 4 is connected to the proximal end of the suction device body, and the tail of the handle is equipped with a negative pressure tube interface.
[0031] The adsorption part 1 is flexible and has multiple pores. The adsorption part 1 can be any one of cotton head, sponge head, or non-woven fabric head.
[0032] The adsorption part 1 is connected to the suction device body via an intermediate connector, which is a plastic rod 2 with lateral suction holes. The adsorption part 1 is detachably sleeved on the plastic rod 2 at the suction holes. The connection structure is an installation structure located at the joint between the plastic rod 2 and the suction device body. The installation structure can be a tenon structure 3, a rotating buckle, or a threaded connection structure. Detailed implementation method:
[0034] Example 1: The adsorption unit 1 consists of a sterile cotton ball wrapped around a plastic rod 2 with side holes, connected to the handle by an elastic latch. If blockage occurs during the procedure, the sterile cotton ball can be removed and replaced by pressing the release button.
[0035] Example 2: The adsorption part 1 is made of medical sponge and is fixed by a threaded connection. It can be replaced by rotating half a turn.
[0036] Example 3: The connection structure adopts a magnetic docking method, and the end face of the adsorption part 1 is provided with a ring magnetic adsorption component. The cotton head is wrapped around the plastic rod 2. The side and front end of the connection part between the plastic rod 2 and the cotton have small holes to attract blood. The plastic rod 2 is connected to the guide hole of the suction handle by a snap fastener. The tail of the handle is inserted into the negative pressure tube for air suction.
[0037] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.
Claims
1. A suction device with a replaceable head, characterized in that, include: The main body of the attractant has a through-flow attraction channel inside; An adsorption part with an adsorption function is connected to the distal end of the main body of the aspirator; The connecting structure is located at the junction of the adsorption part and the main body of the suction device, enabling quick assembly and disassembly. The operating handle is connected to the proximal end of the suction device body, and a negative pressure tube interface is provided at the tail of the handle.
2. The suction device with a replaceable head according to claim 1, characterized in that, The adsorption part is flexible and has multiple pores.
3. A suction device with a replaceable head according to claim 1 or 2, characterized in that, The adsorption part is a cotton head.
4. A suction device with a replaceable head according to claim 1 or 2, characterized in that, The adsorption part is a sponge head.
5. A suction device with a replaceable head according to claim 1 or 2, characterized in that, The adsorption part is a non-woven fabric head.
6. A suction device with a replaceable head according to claim 1, characterized in that, The adsorption part is connected to the main body of the suction device via an intermediate connector, which is a plastic rod with lateral suction holes. The adsorption part is detachably sleeved on the plastic rod at the suction holes.
7. A suction device with a replaceable head according to claim 6, characterized in that, The connection structure is an installation structure located at the junction of the plastic rod and the suction device body.
8. A suction device with a replaceable head according to claim 7, characterized in that, The installation structure is a tenon structure, and the tenon structure is a flexible tenon.
9. A suction device with a replaceable head according to claim 7, characterized in that, The mounting structure is a rotating snap fastener.
10. A suction device with a replaceable head according to claim 7, characterized in that, The mounting structure is a threaded connection structure.