Sterile ultrasonic probe sleeve
By introducing an inner film and coating mechanism into the sterile ultrasound probe sleeve, the problems of uneven distribution of coupling agent and cumbersome operation in the prior art are solved, realizing convenient coating and improved image quality, and reducing the risk of cross-infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEST CHINA HOSPITAL SICHUAN UNIV
- Filing Date
- 2025-01-06
- Publication Date
- 2026-04-21
AI Technical Summary
Existing sterile ultrasound probe sleeves are prone to having their coupling agent wiped off during installation, leading to a decrease in image quality and cumbersome operation.
A sterile ultrasonic probe sleeve was designed, comprising an inner film and a coating mechanism. The inner film divides the protective sleeve into a placement cavity and a storage cavity. Coupling agent can be easily applied through a drawstring and a pre-cut, and the ultrasonic probe and lead wire are secured by a fixing mechanism.
It enables convenient application of coupling agent in a sterile environment, avoids uneven distribution of coupling agent, improves image quality, simplifies the operation process, and reduces the risk of cross-infection.
Smart Images

Figure CN224140834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrasonic probe technology, and more specifically, to a sterile ultrasonic probe sleeve. Background Technology
[0002] During an ultrasound examination, the air between the probe and the patient's skin will prevent ultrasound waves from entering the body. In order to obtain high-quality, clear images, a liquid conductive medium is needed to connect the probe and the patient's body surface. This medium is the commonly used ultrasound coupling agent. In some medical procedures such as puncture guidance, the ultrasound probe is required to be kept in a sterile state. Therefore, the coupling agent is first coated on the surface of the ultrasound probe, and then a sterile sleeve is put over the outside of the ultrasound probe.
[0003] Currently, the sterile protective cover of the ultrasonic probe is not easy to fit snugly against the probe during installation. Furthermore, because the material of the protective cover is relatively soft, it can easily wipe away the coupling agent applied to the probe, resulting in a blurry and unclear image, making it impossible to obtain an effective image.
[0004] A search revealed that Chinese patent CN222055443U discloses a sterile protective sleeve for an ultrasonic probe. During installation, the thumb presses down on the limiting block, and the index finger pushes the ultrasonic probe into the protective sleeve. The curved sliding plate makes it easier for the ultrasonic probe to slide into the sleeve without damaging it. The sleeve is secured when its port contacts the limiting block, and then fastened by a buckle and slot to prevent slippage. A retaining ring secures the sleeve to the handle. Finally, a sliding collar squeezes out any air from the sleeve, ensuring a tight fit between the sleeve and the probe.
[0005] However, in actual use, this structure requires coating the surface of the ultrasound probe with coupling agent before inserting the ultrasound probe into the sterile protective sleeve. Although the design of this structure may reduce the removal of coupling agent by the protective sleeve, uneven distribution of coupling agent can still occur during the installation process, especially when the probe slides into the protective sleeve and air is squeezed out, resulting in a decrease in image quality and cumbersome operation. Utility Model Content
[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sterile ultrasonic probe sleeve to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A sterile ultrasonic probe sleeve includes an ultrasonic probe body, one end of which is fixedly provided with a wire, and a sterile protective sleeve is provided on the outside of the ultrasonic probe body. The sterile protective sleeve is open and a coating mechanism is provided on one side of the sterile protective sleeve.
[0009] The coating mechanism includes an inner film fixedly disposed inside the sterile protective sleeve, a sterile coupling agent disposed on one side of the inner film, a pre-cut opening on the surface of the inner film, a through cavity inside the sterile protective sleeve, a drawstring slidably disposed inside the through cavity, and multiple fixing rings fixedly disposed on the outside of the sterile protective sleeve, each of the multiple fixing rings having a tightening elastic band slidably disposed inside.
[0010] By adopting the above technical solution, external pollution is effectively isolated, ensuring a sterile environment for ultrasonic testing. Moreover, the inner film stores sterile coupling agent, and the combination of the drawstring and the pre-cut opening enables convenient coating, saving time and ensuring precise operation.
[0011] As a further description of the above technical solution: the inner film divides the sterile protective sleeve into a placement cavity and a storage cavity, the tightening elastic band is covered with a pig snout tightening piece, the inner film is made of polyethylene film material, and the tightening elastic band is made of medical rubber material.
[0012] By adopting the above technical solution: the inner membrane separates the sterile protective sleeve into different chambers, which facilitates the placement of the probe and storage of coupling agent, ensuring the functionality of the device. In addition, the medical rubber tightening band, combined with the pig snout tightening plate, makes operation convenient and can effectively tighten the protective sleeve, improving the convenience and practicality of using the ultrasound probe sleeve.
[0013] As a further description of the above technical solution: an ultrasonic instrument is fixedly installed at one end of the wire, a fixing mechanism is provided on one side of the ultrasonic instrument, the fixing mechanism includes a fixing block provided on one side of the ultrasonic instrument, an inclined support block is fixedly installed on one side of the fixing block, a limit groove is opened on the surface of the inclined support block, a U-shaped card block is fixedly installed on the top of the fixing block, and a card slot is opened on the surface of the U-shaped card block.
[0014] By adopting the above technical solution, it is easy to store and organize, and convenient to use at any time during operation, thus improving the efficiency and convenience of ultrasonic testing.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] 1. By setting up a coating mechanism, compared with the existing technology, the sterile protective sleeve is divided into a placement cavity and a storage cavity by an inner film. The inner film made of polyethylene film reliably seals the sterile coupling agent when not in use. When in use, after the ultrasonic probe is inserted into the placement cavity, pulling the rope can tighten the opening end of the protective sleeve to the wire part, achieving initial sealing and fixation. Then, pressing the corresponding external area of the storage cavity will cause the pre-cut in the inner film to rupture, allowing the sterile coupling agent to flow out to the probe detection end, realizing convenient coating. This not only saves the cumbersome tools and steps of applying coupling agent separately, but also reduces the risk of cross-infection caused by improper operation by conducting the entire process inside the sterile protective sleeve.
[0017] 2. By setting up a fixing mechanism, compared with the existing technology, during installation, the bottom of the ultrasonic probe body can be stably placed in the slot of the U-shaped card block, and the wires are orderly restricted in the limiting slot of the inclined support block. This allows the ultrasonic probe to be properly placed and organized on one side of the ultrasonic instrument, effectively avoiding the problems of probe collision damage or wire tangling caused by random placement. This ensures the safety and ease of use of the equipment, helps to maintain a clean and orderly operating environment, and when disassembly is required, simply pull the ultrasonic probe body upward to remove the probe from the card block in one go and simultaneously bring the wires out from the limiting slot. The operation is convenient and quick. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the working structure of the sterile protective sleeve of this utility model.
[0019] Figure 2 This is a schematic diagram of the aseptic protective sleeve structure of this utility model.
[0020] Figure 3 This is a cross-sectional structural diagram of the coating mechanism of this utility model.
[0021] Figure 4 This is a schematic diagram of the working structure of this utility model.
[0022] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model.
[0023] The attached diagram is labeled as follows: 1. Ultrasonic probe body; 2. Lead wire; 3. Sterile protective sleeve; 4. Inner membrane; 5. Sterile coupling agent; 6. Pre-incision; 7. Draw rope; 8. Fixing ring; 9. Tightening elastic band; 10. Placement cavity; 11. Storage cavity; 12. Pig snout tightening plate; 13. Ultrasonic instrument; 14. Fixing block; 15. Inclined support block; 16. Limiting groove; 17. U-shaped locking block; 18. Locking slot. Detailed Implementation
[0024] 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.
[0025] The embodiments disclosed in this application are as follows: Figure 1-5 The sterile ultrasonic probe sleeve shown includes an ultrasonic probe body 1, a wire 2 fixedly disposed at one end of the ultrasonic probe body 1, a sterile protective sleeve 3 covering the outside of the ultrasonic probe body 1, the sterile protective sleeve 3 being open, and a coating mechanism disposed on one side of the sterile protective sleeve 3.
[0026] The coating mechanism includes an inner film 4 fixedly installed inside the sterile protective sleeve 3, a sterile coupling agent 5 provided on one side of the inner film 4, a pre-cut slit 6 on the surface of the inner film 4, a through cavity inside the sterile protective sleeve 3, a drawstring 7 slidably installed inside the through cavity, and multiple fixing rings 8 fixedly installed on the outside of the sterile protective sleeve 3, with tightening elastic bands 9 slidably installed inside each of the multiple fixing rings 8.
[0027] Next, the ultrasound probe body 1 is inserted into the placement cavity 10 through the opening end of the sterile protective sleeve 3. Then, the user can pull the drawstring 7, which slides in the cavity and causes the opening end of the sterile protective sleeve 3 to tighten and close, fitting the part of the wire 2 connected to the ultrasound probe body 1, preventing external contaminants from entering from the opening, and playing a preliminary sealing and fixing role.
[0028] Next, the user presses the outer area of the sterile protective sleeve 3 corresponding to the storage cavity 11. Under the pressure, the pre-cut opening 6 of the inner film 4 is the first to break. At this time, the sterile coupling agent 5 in the storage cavity 11 will flow out and flow to the detection end surface of the ultrasonic probe body 1 to achieve the application of coupling agent and prepare for ultrasonic detection. There is no need to apply sterile coupling agent 5 separately with tools as before, which saves time and ensures that the sterile environment is not disturbed by the outside world.
[0029] Reference Figure 2-3 As shown, the inner membrane 4 divides the sterile protective sleeve 3 into a placement cavity 10 and a storage cavity 11. A pig snout tightening piece 12 is fitted over the tightening elastic band 9. The inner membrane 4 is made of polyethylene film material, and the tightening elastic band 9 is made of medical rubber material. The sterile coupling agent 5 is sealed in the storage cavity 11 by the inner membrane 4. The inner membrane 4 divides the sterile protective sleeve 3 into a placement cavity 10 for placing the ultrasound probe body 1 and a storage cavity 11 for storing the sterile coupling agent 5. The inner membrane 4 is made of polyethylene film material, which is relatively thin and has a certain degree of toughness, and can well seal the sterile coupling agent 5 in the storage cavity 11 when not in use.
[0030] Reference Figure 4-5 As shown, an ultrasonic transducer 13 is fixedly mounted at one end of the lead wire 2. A fixing mechanism is provided on one side of the ultrasonic transducer 13. The fixing mechanism includes a fixing block 14 on one side of the ultrasonic transducer 13, and an inclined support block 15 fixedly mounted on one side of the fixing block 14. A limit groove 16 is formed on the surface of the inclined support block 15. A U-shaped locking block 17 is fixedly mounted on the top of the fixing block 14. A locking groove 18 is formed on the surface of the U-shaped locking block 17. When the ultrasonic transducer body 1 is pulled upward, it is locked in place in the locking groove 18 of the U-shaped locking block 17, thus providing a certain degree of fixation. The fixing block 14 is placed on the external sterile sheet, and the U-shaped card block 17 is fixedly set on the top of the fixing block 14. Pulling the probe body will cause it to disengage from the card slot 18. At the same time, the wire 2 connected to it was previously placed in the limiting groove 16 of the inclined support block 15 and was limited. As the ultrasonic probe body 1 is pulled up, the wire 2 will also be brought out from the limiting groove 16, so as to facilitate the removal of the ultrasonic probe body 1. When the ultrasonic probe body 1 is placed on the U-shaped card block 17 for fixation, it is convenient to temporarily place the ultrasonic probe body 1 when using it in a sterile state.
[0031] Working principle of this utility model:
[0032] This utility model is a sterile ultrasonic probe sleeve. When the device is in use, the sterile coupling agent 5 is sealed in the storage cavity 11 by the inner film 4. The inner film 4 divides the sterile protective sleeve 3 into a placement cavity 10 for placing the ultrasonic probe body 1 and a storage cavity 11 for storing the sterile coupling agent 5. The inner film 4 is made of polyethylene film material, which is relatively thin and has a certain toughness, and can well seal the sterile coupling agent 5 in the storage cavity 11 when not in use.
[0033] When the ultrasound probe body 1 is pulled upward, the bottom of the ultrasound probe body 1 was previously placed in the slot 18 of the U-shaped card block 17 and was fixed in place. The fixing block 14 is placed on the external sterile drape, and the U-shaped card block 17 is fixedly set on the top of the fixing block 14. Pulling the probe body will cause it to disengage from the slot 18. At the same time, the wire 2 connected to it was previously placed in the limiting groove 16 of the inclined support block 15 and was limited. As the ultrasound probe body 1 is pulled upward, the wire 2 will also be brought out from the limiting groove 16, making it easy to remove the ultrasound probe body 1. When the ultrasound probe body 1 is placed on the U-shaped card block 17 and fixed, it is convenient to temporarily place the ultrasound probe body 1 when using it in a sterile state.
[0034] Next, the ultrasound probe body 1 is inserted into the placement cavity 10 through the opening end of the sterile protective sleeve 3. Then, the user can pull the drawstring 7, which slides in the cavity and causes the opening end of the sterile protective sleeve 3 to tighten and close, fitting the part of the wire 2 connected to the ultrasound probe body 1, preventing external contaminants from entering from the opening, and playing a preliminary sealing and fixing role.
[0035] Next, the user presses the outer area of the sterile protective sleeve 3 corresponding to the storage cavity 11. Under the pressure, the pre-cut opening 6 of the inner film 4 is the first to break. At this time, the sterile coupling agent 5 in the storage cavity 11 will flow out and flow to the detection end surface of the ultrasonic probe body 1 to achieve the application of coupling agent and prepare for ultrasonic detection. There is no need to apply sterile coupling agent 5 separately with tools as before, which saves time and ensures that the sterile environment is not disturbed by the outside world.
[0036] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A sterile ultrasonic probe sleeve, comprising an ultrasonic probe body (1), characterized in that: One end of the ultrasonic probe body (1) is fixedly provided with a wire (2), and the outside of the ultrasonic probe body (1) is covered with a sterile protective sleeve (3). The sterile protective sleeve (3) is set in an open shape, and a coating mechanism is provided on one side of the sterile protective sleeve (3). The coating mechanism includes an inner film (4) fixedly disposed inside the sterile protective sleeve (3), a sterile coupling agent (5) disposed on one side of the inner film (4), a pre-cut opening (6) on the surface of the inner film (4), a through cavity disposed inside the sterile protective sleeve (3), a drawstring (7) slidably disposed inside the through cavity, and multiple fixing rings (8) fixedly disposed outside the sterile protective sleeve (3), and a tightening elastic band (9) slidably disposed inside the multiple fixing rings (8).
2. The sterile ultrasonic probe cover of claim 1, wherein: The inner film (4) divides the sterile protective sleeve (3) into a placement cavity (10) and a storage cavity (11), and the tightening elastic band (9) is covered with a pig snout tightening piece (12).
3. The sterile ultrasonic probe cover of claim 1, wherein: The inner film (4) is made of polyethylene film material, and the tightening elastic band (9) is made of medical rubber material.
4. The sterile ultrasonic probe cover of claim 1, wherein: An ultrasonic instrument (13) is fixedly installed at one end of the conductor (2), and a fixing mechanism is provided on one side of the ultrasonic instrument (13). The fixing mechanism includes a fixing block (14) provided on one side of the ultrasonic instrument (13).
5. The sterile ultrasonic probe cover of claim 4, wherein: An inclined support block (15) is fixedly provided on one side of the fixed block (14), and a limit groove (16) is formed on the surface of the inclined support block (15).
6. The sterile ultrasonic probe cover of claim 4, wherein: A U-shaped card block (17) is fixedly provided on the top of the fixing block (14), and a card slot (18) is provided on the surface of the U-shaped card block (17).
Citation Information
Patent Citations
Sterile protective sleeve for ultrasonic probe
CN222055443U