Sterile sleeve for intraoperative radiotherapy

By designing fastening components, connecting components and vacuum components on the sterile cover body, the problem of the sterile cover being difficult to fix is ​​solved, convenient fixation and sealing protection are achieved, and the safety and accuracy of the radiotherapy process are ensured.

CN120617836APending Publication Date: 2025-09-12CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER
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Patent Information

Application Number
CN202510590011.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

The existing sterile sleeve is not easy to fix when it is sleeved on the medical device, which increases the complexity of the operation.

Method used

A sterile sleeve body is designed, which includes an inner layer, an outer layer and a middle layer. It is equipped with a fastening component, a connecting component and a vacuum component. Through structures such as elastic bands, Velcro, limiting rings, fastening rings and medical adhesives, convenient fixation and sealing protection are achieved.

Benefits of technology

It improves the fixation convenience and sealing of the sterile cover, prevents bacteria from entering, reduces the risk of infection, and ensures the safety and accuracy of the radiotherapy process.

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Abstract

The invention relates to the technical field of radiotherapy sterile sleeves, and discloses a sterile sleeve for intraoperative radiotherapy, which comprises a sterile sleeve body, the inner wall of the sterile sleeve body is provided with an inner layer, the outer side surface of the sterile sleeve body is provided with an outer layer, and a middle layer is arranged between the outer layer and the inner layer. The outer side surface of the sterile sleeve body is communicated with an air exhaust assembly, the top end of the sterile sleeve body is communicated with an extending opening, the outer side of the extending opening is connected with an upper fastening assembly, the bottom surface of the sterile sleeve body is connected with a connecting assembly, and the outer side of the connecting assembly is sleeved with a lower fastening assembly. The upper fastening assembly comprises an elastic band, a first hook-and-loop fastener and a second hook-and-loop fastener. By means of the elastic band in the upper fastening assembly, the first hook-and-loop fastener on one side of the elastic band adheres to the second hook-and-loop fastener on the other side of the elastic band, so that the elastic band can be fixed, and the fastening degree of binding of the extending opening is increased.
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Description

Technical Field

[0001] The present invention relates to the technical field of sterile covers for intraoperative radiotherapy, in particular to a sterile cover for intraoperative radiotherapy. Background Art

[0002] The sterile cover used in the radiotherapy applicator is an important auxiliary tool for ensuring a sterile environment during medical operations. It is mainly used to prevent cross-infection, ensure the safety and accuracy of the radiotherapy process, isolate the relevant components of the radiotherapy equipment from the surgical area, and prevent blood, body fluids, tissue debris, etc. from contaminating the radiotherapy equipment during the operation. At the same time, it also prevents bacteria and other microorganisms on the radiotherapy equipment from entering the surgical wound, reducing the risk of infection.

[0003] Most existing sterile sleeves are composed of a whole sleeve body. When the sterile sleeve body is put on the outside of the medical device, an external fastening device is required to tie and fasten the two ends of the sleeve body to the sleeve joint of the medical device to prevent the sterile sleeve from falling off. This process increases the complexity of the sleeve connection and is inconvenient to use. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a sterile cover for intraoperative radiotherapy, which solves the problem that the prior sterile cover is not convenient for fixing the medical device connected to the outside.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sterile cover for intraoperative radiotherapy, comprising a sterile cover body, the inner wall of the sterile cover body is provided with an inner layer, the outer surface of the sterile cover body is provided with an outer layer, an intermediate layer is provided between the outer layer and the inner layer, the outer surface of the sterile cover body is connected to an exhaust component, the top of the sterile cover body is connected to an extension port, the outer side of the extension port is connected to an upper fastening component, the bottom surface of the sterile cover body is connected to a connecting component, and the outer side of the connecting component is sleeved with a lower fastening component.

[0006] Preferably, the upper fastening assembly includes an elastic band, a first Velcro and a second Velcro, one end of the elastic band is fixedly mounted on the outer surface of the extension opening, the first Velcro is adhered to one side surface of the elastic band, and the second Velcro is adhered to the other side surface of the elastic band.

[0007] Preferably, the connecting assembly includes a medical adhesive and a limiting ring, the limiting ring is fixedly sleeved on the outside of the sterile sleeve body, and the medical adhesive is arranged on the outer surface of the limiting ring.

[0008] Preferably, an annular groove is provided on the outer side of the limiting ring, and the medical adhesive is arranged on the inner side of the annular groove.

[0009] Preferably, the lower fastening assembly includes a fastening ring and an adhesive tape, the fastening ring is sleeved on the outside of the limiting ring, and the adhesive tape is arranged on the inner surface of the fastening ring.

[0010] Preferably, the fastening ring is arranged in the ring groove outside the limiting ring, and the adhesive tape is bonded to the medical adhesive.

[0011] Preferably, the vacuum assembly includes a connecting tube, a silicone sleeve, a sealing cover, a block and a slot. The connecting tube is installed on the outside of the sterile sleeve body, and the connecting tube is communicated with the interior of the sterile sleeve body. The sealing cover is connected to one side of the connecting tube by a hinge, and the silicone sleeve is fixedly installed on the inner wall of the connecting tube. A block is fixedly installed on one side of the sealing cover, and a slot is provided on one side of the connecting tube.

[0012] Preferably, a hole is provided at the center of the silicone sleeve.

[0013] Preferably, the inner layer is made of medical-grade polyethylene, the outer layer is made of polyurethane, and the inner layer, the middle layer and the outer layer are connected by pressing.

[0014] Preferably, the length between the bottom of the sterile cover body and the top of the extension opening is 2 meters, and the width of the sterile cover body is 1.2 meters.

[0015] Working principle: When using this device, take the sterile cover body out of the packaging, put the sterile cover body on the external radiotherapy applicator, extend the end source from the extension port, pull the elastic band, and wrap the elastic band around the outside of the extension port to tie the extension port to the outside of the end source. Attach the first magic tape to the surface of the second magic tape to fix the extension port to the outside of the end source. By putting the fastening ring on the outside of the limiting ring and tightening the fastening ring, the opening at the bottom of the sterile cover body can be tightened, thereby fixing the sterile cover body to the outside of the applicator to protect the applicator.

[0016] When the sterile cover body is fixedly sleeved on the outside of the applicator, the external syringe can be inserted into the interior of the connecting tube, and the air inside the sterile cover body can be extracted through the syringe, so that the sterile cover body can be made into a relatively sealed space, and the inner wall of the sterile cover body can be tightly fitted to the outside of the applicator, preventing bacteria from entering the interior of the sterile cover body, ensuring the protective performance of the sterile cover body for the applicator. When the extraction is completed, the sealing cover can be closed to prevent air from entering the interior of the sterile cover body through the connecting tube.

[0017] The present invention provides a sterile cover for intraoperative radiotherapy, which has the following beneficial effects:

[0018] 1. The present invention provides an upper fastening assembly on the outer side of the extension opening. By flowing the elastic band in the upper fastening assembly, the elastic band can be stretched. By wrapping the elastic band around the outer side of the extension opening, the diameter of the extension opening can be reduced, so that the extension opening can be tied and fixed to the outer surface of the medical device. When the tying is tightened to a certain degree, the first Velcro on one side of the elastic band can be adhered to the second Velcro on the other side to fix the elastic band, thereby increasing the tightness of the tying of the extension opening.

[0019] 2. The present invention cooperates with the lower fastening assembly and the connecting assembly. When in use, the fastening loop can be sleeved on the outside of the limiting ring, thereby tightening the opening at the bottom of the sterile cover body, so that the bottom inner wall of the sterile cover body is closely fitted to the surface of the medical device, increasing the convenience of fixing the sterile cover body to the external medical device. When the fastening loop is sleeved on the outside of the limiting ring, the adhesive tape can be adhered to the medical adhesive, thereby increasing the stability of the fastening loop on the outside of the limiting ring and preventing the fastening loop from falling off.

[0020] 3. The present invention is provided with an exhaust assembly. When the sterile cover body is put on the external medical device, an external syringe can be used to insert into the connecting tube to extract the air inside the sterile cover body, thereby making the interior of the sterile cover body relatively vacuum-sealed. When the gas is extracted from the interior of the sterile cover body, the sterile cover body can also be closely attached to the surface of the medical device, thereby preventing the entry of bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 Schematic diagram of the inner layer of the present invention;

[0023] Figure 3 is a schematic diagram of the upper fastening assembly of the present invention;

[0024] Figure 4 is a schematic diagram of a connection assembly of the present invention;

[0025] Figure 5 is a schematic diagram of the lower fastening assembly of the present invention;

[0026] Figure 6 Schematic diagram of the air extraction component of the present invention.

[0027] Among them, 1. Sterile sleeve body; 101. Inner layer; 102. Middle layer; 103. Outer layer; 2. Extension port; 3. Upper fastening assembly; 301. Elastic band; 302. First magic tape; 303. Second magic tape; 4. Connecting assembly; 401. Medical adhesive; 402. Limiting ring; 5. Vacuum assembly; 501. Silicone sleeve; 502. Sealing cover; 503. Card slot; 504. Card block; 505. Connecting tube; 6. Lower fastening assembly; 601. Fastening ring; 602. Adhesive tape. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example:

[0030] Please see the attached Figure 1 and attached Figure 2 An embodiment of the present invention provides a sterile cover for intraoperative radiotherapy, including a sterile cover body 1, the inner wall of the sterile cover body 1 is provided with an inner layer 101, the outer surface of the sterile cover body 1 is provided with an outer layer 103, and an intermediate layer 102 is provided between the outer layer 103 and the inner layer 101. The outer surface of the sterile cover body 1 is connected to an exhaust component 5, the top of the sterile cover body 1 is connected to an extension port 2, the outer side of the extension port 2 is connected to an upper fastening component 3, the bottom surface of the sterile cover body 1 is connected to a connecting component 4, and the outer side of the connecting component 4 is sleeved with a lower fastening component 6.

[0031] Specifically, the sterile cover body 1 is connected to the extension port 2. During the intraoperative radiotherapy process, an applicator is needed. The end of the applicator is provided with an end source, which is inserted into a specific part of the human body so that the radiation source can be accurately placed in the area where radiotherapy is required. However, the end of the applicator is usually in the shape of a long rod, and the diameter of the extension port 2 is greatly reduced compared to the sterile cover body 1. When the end of the applicator is extended into the extension port 2 through the bottom opening of the sterile cover body 1, the inner wall of the extension port 2 can be fitted with the end source part of the applicator, and then it can be protected by the cover, preventing human tissue from entering the interior of the sterile cover body through the connection between the applicator and the sterile cover body 1 during the intraoperative radiotherapy process, and contaminating the medical equipment inside the sterile cover body 1. At the same time, it also prevents impurities contained in the sterile cover body 1 from passing through the connection between the sterile cover body 1 and the applicator, causing infection in the patient.

[0032] Please see the attached Figure 3The upper fastening component 3 includes an elastic band 301, a first magic tape 302 and a second magic tape 303. One end of the elastic band 301 is fixedly installed on the outer surface of the extension opening 2. The first magic tape 302 is attached to one side surface of the elastic band 301, and the second magic tape 303 is attached to the other side surface of the elastic band 301.

[0033] Specifically, the elastic band 301 contains rubber thread inside, and the elastic thread has good elasticity and flexibility, so that the elastic band 301 can be pulled. When in use, after the end source of the applicator extends from the opening of the extension port 2, the elastic band 301 can be pulled to make the elastic band 301 rotate around the outside of the extension port 2, and then the outside of the extension port 2 can be tied, so that the inner wall of the extension port 2 can be closely fitted to the outside of the end source of the applicator, thereby ensuring the sealing of the connection between the extension port 2 and the end source of the applicator, and the outer side of the elastic band 301 is coated with medical-grade antibacterial material, which can increase the comfort during use. Safety, and a first magic tape 302 and a second magic tape 303 are respectively provided on both sides of the elastic band 301. When the elastic band 301 is rotated a certain number of times on the outside of the extension port 2, the extension port 2 is tightly fitted on the end source port of the applicator, and the first magic tape 302 can be adhered to the surface of the second magic tape 303, and then the elastic band 301 can be fixed to prevent the elastic band 301 from rebounding. After the elastic band 301 is fixed, the extension port 2 can be fixed on the outside of the end source of the applicator, and the fixing method is extremely convenient, which increases the convenience of the fixed sleeve.

[0034] Please see the attached Figure 4 The connecting component 4 includes a medical adhesive 401 and a limiting ring 402 . The limiting ring 402 is fixedly sleeved on the outside of the sterile cover body 1 , and the medical adhesive 401 is arranged on the outer surface of the limiting ring 402 .

[0035] Specifically, the medical adhesive 401 has a certain degree of stickiness, and when the limiting ring 402 is in the factory state, a layer of film is bonded to the outer side of the medical adhesive 401 to prevent the stickiness of the medical adhesive 401 from being affected. The film is made of polyethylene. When in use, the film can be torn off to expose the medical adhesive 401. The medical adhesive 401 used here is made of acrylic polymer material, which is sterile and non-toxic, and is consistent with the adhesive used for medical band-aids. Therefore, its safety can be guaranteed when used during intraoperative radiotherapy. The limiting ring 402 is integrated with the sterile cover body 1, and the material used is also consistent.

[0036] Please see the attached Figure 4 A ring groove is provided on the outer side of the limiting ring 402, and the medical adhesive 401 is arranged on the inner side of the ring groove.

[0037] Specifically, the annular groove is arranged around the limiting ring 402, and the medical adhesive 401 is arranged on the inner wall of the annular groove. When the device is not in use, a polyethylene film is adhered to the outer side of the medical adhesive 401 to prevent the medical adhesive 401 from contacting with external substances and affecting the viscosity of the medical adhesive 401. The polyethylene film is arranged in the annular groove on the inner side of the limiting ring 402, which is convenient for tearing off. The end of the polyethylene film is also attached to the annular groove inside the limiting ring 402, thereby preventing the polyethylene film used to protect the medical adhesive 401 from falling off.

[0038] Please see the attached Figure 5 The lower fastening assembly 6 includes a fastening ring 601 and an adhesive tape 602 . The fastening ring 601 is sleeved on the outside of the limiting ring 402 , and the adhesive tape 602 is arranged on the inner surface of the fastening ring 601 .

[0039] Specifically, the fastening ring 601 is made of elastic silicone and is in a ring shape, and the adhesive tape 602 is made of medical-grade cotton cloth and has good adhesiveness.

[0040] Please see the attached Figure 1 、 Figure 4 and Figure 5 The fastening ring 601 is sleeved in the ring groove outside the limiting ring 402, and the adhesive tape 602 and the medical adhesive 401 are bonded and connected.

[0041] Specifically, when in use, the film on the outside of the medical adhesive 401 can be torn off, and the fastening ring 601 can be pulled and put into the annular groove on the outside of the limiting ring 402. The limiting ring 402 can be quickly tightened by the rebound of the fastening ring 601. When the limiting ring 402 is loose, the diameter of the bottom opening of the sterile cover body 1 can be reduced, and then the sterile cover body 1 can be fixedly put on the outside of the applicator, so that the sterile cover body 1 can be fixedly installed to prevent the sterile cover body 1 from falling off. When the mushroom ring is put into the annular groove on the outside of the limiting ring 402, the adhesive tape 602 can be adhered to the outside of the medical adhesive 401. The medical adhesive 401 adheres and fixes the fastening ring 601, which can ensure the stability of the fastening ring 601 on the outside of the limiting ring 402 and prevent the fastening ring 601 from falling off.

[0042] Please see the attached Figure 6 The vacuum assembly includes a connecting tube 505, a silicone sleeve 501, a sealing cover plate 502, a block 504 and a slot 503. The connecting tube 505 is installed on the outside of the sterile sleeve body 1, and the connecting tube 505 is connected to the inside of the sterile sleeve body 1. The sealing cover plate 502 is connected to one side of the connecting tube 505 by a hinge. The silicone sleeve 501 is fixedly installed on the inner wall of the connecting tube 505. A block 504 is fixedly installed on one side of the sealing cover plate 502, and a slot 503 is opened on one side of the connecting tube 505.

[0043] Specifically, the positions of the card block 504 and the card slot 503 correspond to each other. When the sealing cover 502 is closed, the card block 504 can be inserted into the inside of the card slot 503, and then the sealing cover 502 can be fixed and installed. A handle is provided on the back of the sealing cover 502, and the handle can be used to assist personnel to pull the sealing cover 502 and open the sealing cover 502 from the connecting tube 505. When the sterile cover body 1 is fixedly sleeved on the outside of the applicator, the injection end of the syringe can be inserted into the connecting tube 505 with the help of an external syringe. 05 and extends into the outside of the sterile cover body 1. At this time, the air inside the sterile cover body 1 can be extracted. After the air inside the sterile cover body 1 is extracted, the interior of the sterile cover body 1 can be made relatively vacuum and sealed. The inner wall of the sterile cover body 1 can also be tightly fitted to the outer surface of the internal applicator. The tight fit can reduce the gap between the sterile cover body 1 and the applicator, reduce the possibility of entry of microorganisms such as bacteria, better maintain the sterile state of the applicator, and prevent the risk of infection.

[0044] Please see the attached Figure 6 A hole is provided at the center of the silicone sleeve 501 .

[0045] Specifically, the hole at the center of the silicone sleeve 501 can ensure that the connecting tube 505 is connected to the interior of the sterile sleeve body 1, and when the syringe is inserted into the interior of the connecting tube 505, it will pass through the hole at the center of the silicone sleeve 501 and squeeze the silicone sleeve 501 at the same time. Due to the plasticity of the silicone sleeve 501, the silicone sleeve 501 can wrap the injection end of the syringe, thereby ensuring that when the syringe extracts the air inside the sterile sleeve body 1, the environment inside the sterile sleeve body 1 can be sealed, thereby ensuring the normal extraction.

[0046] Please see the attached Figure 2 The inner layer 101 is made of medical-grade polyethylene, the outer layer 103 is made of polyurethane, and the inner layer 101, the middle layer 102 and the outer layer 103 are connected by pressing.

[0047] Specifically, medical-grade polyethylene can prevent the sterile cover body 1 from sticking to the outer surface of the inner wall of the applicator. The outer layer 103 of the sterile cover body 1 is made of polyurethane, which has certain anti-friction and anti-tearing capabilities, thereby preventing the outer layer 103 of the sterile cover body 1 from rupturing. The middle layer 102 of the sterile cover body 1 is made of transparent silicone, which has strong ductility, thereby enhancing the tensile performance and ductility of the sterile cover body 1, further ensuring the durability of the sterile cover body 1.

[0048] Please see the attached Figure 1 The length between the bottom of the sterile cover body 1 and the top of the extension port 2 is 2M, and the width of the sterile cover body 1 is 1.2M.

[0049] Specifically, the combined length of the sterile cover body 1 and the extension port 2 is 2 meters, and the width of the sterile cover body 1 is 1.2 meters, thus being applicable to most applicators.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sterile cover for intraoperative radiotherapy, comprising a sterile cover body (1), characterized in that: The inner wall of the sterile cover body (1) is provided with an inner layer (101), the outer surface of the sterile cover body (1) is provided with an outer layer (103), an intermediate layer (102) is provided between the outer layer (103) and the inner layer (101), the outer surface of the sterile cover body (1) is connected to an exhaust assembly (5), the top of the sterile cover body (1) is connected to an extension port (2), the outer side of the extension port (2) is connected to an upper fastening assembly (3), the bottom surface of the sterile cover body (1) is connected to a connecting assembly (4), and the outer side of the connecting assembly (4) is sleeved with a lower fastening assembly (6).

2. A sterile cover for intraoperative radiotherapy according to claim 1, characterized in that: The upper fastening assembly (3) comprises an elastic band (301), a first magic tape (302) and a second magic tape (303); one end of the elastic band (301) is fixedly mounted on the outer surface of the extension opening (2); the first magic tape (302) is attached to one side surface of the elastic band (301); and the second magic tape (303) is attached to the other side surface of the elastic band (301).

3. The sterile cover for intraoperative radiotherapy according to claim 1, characterized in that: The connecting assembly (4) comprises a medical adhesive (401) and a limiting ring (402), wherein the limiting ring (402) is fixedly sleeved on the outside of the sterile sleeve body (1), and the medical adhesive (401) is arranged on the outer surface of the limiting ring (402).

4. The sterile cover for intraoperative radiotherapy according to claim 3, characterized in that: An annular groove is provided on the outer side of the limiting ring (402), and the medical adhesive (401) is arranged on the inner side of the annular groove.

5. The sterile cover for intraoperative radiotherapy according to claim 3, characterized in that: The lower fastening assembly (6) comprises a fastening ring (601) and an adhesive tape (602), wherein the fastening ring (601) is sleeved on the outside of the limiting ring (402), and the adhesive tape (602) is arranged on the inner surface of the fastening ring (601).

6. The sterile cover for intraoperative radiotherapy according to claim 5, characterized in that: The fastening ring (601) is sleeved in the annular groove outside the limiting ring (402), and the adhesive tape (602) and the medical adhesive (401) are bonded and connected.

7. The sterile cover for intraoperative radiotherapy according to claim 1, characterized in that: The vacuum assembly comprises a connecting tube (505), a silicone sleeve (501), a sealing cover (502), a block (504) and a slot (503); the connecting tube (505) is mounted on the outside of the sterile sleeve body (1), and the connecting tube (505) is communicated with the interior of the sterile sleeve body (1); the sealing cover (502) is connected to one side of the connecting tube (505) via a hinge; the silicone sleeve (501) is fixedly mounted on the inner wall of the connecting tube (505); a block (504) is fixedly mounted on one side of the sealing cover (502); and a slot (503) is provided on one side of the connecting tube (505).

8. The sterile cover for intraoperative radiotherapy according to claim 7, characterized in that: A hole is provided at the center of the silicone sleeve (501).

9. The sterile cover for intraoperative radiotherapy according to claim 1, characterized in that: The inner layer (101) is made of medical-grade polyethylene, the outer layer (103) is made of polyurethane, and the inner layer (101), the middle layer (102) and the outer layer (103) are connected by pressing.

10. The sterile cover for intraoperative radiotherapy according to claim 1, characterized in that: The length between the bottom of the sterile cover body (1) and the top of the extension opening (2) is 2M, and the width of the sterile cover body (1) is 1.2M.