Unfolding device of sterile protective sleeve

By designing an unfolding device for the sterile protective sleeve, using a fixing ring and a limiting ring to clamp the protective sleeve, combined with rollers and a pivot, the automatic unfolding of the vaginal ultrasound probe and the injection of coupling agent are realized. This solves the problems of cumbersome operation and low efficiency in the existing technology, and improves the operation efficiency and safety.

CN224155771UActive Publication Date: 2026-04-24SHENZHEN PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN PEOPLES HOSPITAL
Filing Date
2025-01-17
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In the existing technology, the operation of covering the vaginal ultrasound probe with a sterile protective cover is cumbersome and inefficient, requiring two people to work together. In addition, the coupling agent inside the sterile protective cover is prone to leaking out and coming into contact with the gloves, which affects the operation efficiency.

Method used

An unfolding device for a sterile protective sleeve was designed, including a base, a fixing ring, and a limiting ring. The protective sleeve is clamped by the limiting ring and the fixing ring. Combined with rollers and pivots, the protective sleeve can be automatically unfolded and the coupling agent can be injected. The operation can be completed by a single person.

Benefits of technology

It improves the operational efficiency of sterile protective sleeves, reduces contact between coupling agent and gloves, simplifies the operation process, and enhances the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vaginal ultrasonic probe auxiliary instruments, and provides a sterile protective sleeve unfolding device which comprises a base, a fixing ring and a limiting ring, the fixing ring is arranged on the base, the protective sleeve is sleeved with the fixing ring, the limiting ring and the fixing ring are coaxially arranged, and the limiting ring is arranged in the protective sleeve. A limiting area is formed between the limiting ring and the fixing ring and used for limiting passing of the winding part of the protective sleeve. In the using process, the protective sleeve can be firstly placed in the fixing ring, then the limiting ring is placed in the protective sleeve, the protective sleeve is clamped by the limiting ring and the fixing ring, coupling agents can be conveniently injected into the protective sleeve at the moment, meanwhile, the rod type vaginal ultrasound long probe can be operated to be inserted into the sterile protective sleeve, and the protective sleeve is convenient to use. The protective sleeve in the winding state is gradually unfolded until the protective sleeve completely wraps the ultrasonic long probe, one person can complete all operations in the period, a coupling agent in the sterile protective sleeve is not prone to making contact with the glove, and efficiency is improved.
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Description

Technical Field

[0001] This application relates to the field of vaginal ultrasound probe auxiliary device technology, and more particularly to a device for deploying a sterile protective sheath. Background Technology

[0002] Egg retrieval is an important step in assisted reproductive technology (ART), especially in in-vitro fertilization (IVF). Current egg retrieval procedures require the use of a vaginal ultrasound probe, which needs to be covered with a disposable sterile protective sleeve (typically packaged in a way similar to a male condom wrapping).

[0003] The procedure of attaching a sterile protective sleeve to a vaginal ultrasound probe requires two people to work simultaneously. One person, wearing sterile plastic gloves, first unfolds the sterile protective sleeve, while the other person pre-applies coupling agent to the ultrasound probe or sprays it directly onto the inner surface of the blind end of the sterile protective sleeve. Then, the long, rod-type vaginal ultrasound probe is inserted into the sterile protective sleeve. However, because the sterile protective sleeve is initially rolled up and contains no lubricant, unfolding it while wearing gloves is extremely cumbersome and inconvenient. If any contaminated surrounding environment is touched, the gloves and sterile protective sleeve must be changed again before proceeding, resulting in low efficiency. Furthermore, the coupling agent inside the sterile protective sleeve can easily leak out and come into contact with the gloves, causing them to become sticky and affecting other procedures. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a device for unfolding a sterile protective sheath, which aims to solve the problem of low efficiency in the existing vaginal ultrasound probe when covered with a sterile protective sheath.

[0005] The technical solution adopted by this application to solve the technical problem is as follows: a device for unfolding a sterile protective sleeve, comprising: a base;

[0006] A retaining ring is disposed on the base and is used to be fitted onto the protective sleeve.

[0007] A limiting ring is provided, which is coaxially arranged with the fixing ring. The limiting ring is used to be disposed inside the protective sleeve. A limiting area is formed between the limiting ring and the fixing ring. The width of the limiting area in the radial direction of the limiting ring is a preset width. The limiting area is used to restrict the passage of the winding part of the protective sleeve.

[0008] Furthermore, the outer diameter of the limiting ring is larger than the inner diameter of the fixing ring, and the end of the fixing ring opposite to the limiting ring is connected to the base.

[0009] Furthermore, the unfolding device also includes: a plurality of roller portions, which are respectively sleeved on the fixed ring and the limiting ring, and the plurality of roller portions are rotatably arranged along the tangent of the fixed ring in the circumferential direction and the tangent of the limiting ring in the circumferential direction, respectively, and the protective sleeve rolls and rubs against the fixed ring and the limiting ring through the plurality of roller portions respectively.

[0010] Furthermore, several of the rollers are evenly distributed on the fixed ring and the limiting ring, respectively.

[0011] Furthermore, the fixing ring includes: a first fixing arc, which is disposed on the base;

[0012] A first movable arc, the first movable arc being hinged to the first fixed arc, the first movable arc and the first fixed arc being concentrically arranged;

[0013] The limiting ring includes: a second fixed arc;

[0014] The second movable arc is hinged to the second fixed arc, and the second movable arc and the second fixed arc are concentrically arranged;

[0015] The centripetal direction of the first fixed arc is the same as that of the second fixed arc.

[0016] Furthermore, the base includes an arc-shaped seat, which is connected to the end of the first fixed arc that is away from the second fixed arc. The first fixed arc and the arc-shaped seat are coaxially arranged, and the centripetal direction of the first fixed arc is the same as the centripetal direction of the arc-shaped seat.

[0017] Furthermore, the unfolding device also includes a pivot member, which is connected between the limiting ring and the base, and is used to drive the limiting ring to move in a direction away from the fixed ring.

[0018] Furthermore, the pivot member includes a fixing part, which is disposed on the base;

[0019] The pivot joint is parallel to the axis of the fixed ring. One end of the pivot joint is pivotally connected to the fixed part, and the other end is connected to the second fixed arc. The pivot joint is driven to form a preset angle with the axis of the fixed ring.

[0020] Furthermore, the pivot member further includes a coupling agent cavity disposed within the pivot portion, the coupling agent cavity being used to contain coupling agent;

[0021] A plurality of injection holes are provided on the second fixed arc, and all of the plurality of injection holes are connected to the coupling agent cavity.

[0022] Furthermore, the pivot member also includes a press-type pump head, the pressing part of which protrudes from the pivot member, and the press-type pump head is used to inject the coupling agent in the coupling agent cavity into a plurality of the injection holes by being driven.

[0023] Compared with the prior art, this utility model allows the protective sleeve to be placed inside the fixing ring first, and then the limiting ring to be placed inside the protective sleeve, so that the limiting ring and the fixing ring "clamp" the protective sleeve. At this time, the coupling agent can be easily injected into the protective sleeve. At the same time, the rod-type vaginal ultrasound long probe can be inserted into the sterile protective sleeve. The rolled-up protective sleeve gradually unfolds until it completely wraps around the ultrasound long probe. During this process, one person can complete the entire operation, and the coupling agent inside the sterile protective sleeve is less likely to come into contact with the gloves, thus improving efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the unfolding device (in use) of the sterile protective sleeve provided in this embodiment;

[0026] Figure 2 This is a schematic diagram of the overall structure of the unfolding device for the sterile protective sleeve provided in this embodiment (when not in use);

[0027] Figure 3 This is a schematic diagram of the overall structure of the unfolding device (in use) of the sterile protective sleeve provided in another embodiment.

[0028] In the diagram: 100, base; 110, arc-shaped seat; 200, fixing ring; 210, first fixed arc; 220, first movable arc; 300, limiting ring; 310, second fixed arc; 320, second movable arc; 400, roller part; 500, pivot part; 510, fixing part; 520, pivot part; 530, injection hole; 540, press-type pump head. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0033] This utility model provides, for example Figures 1 to 3 The device shown is an unfolding device for a sterile protective sheath, designed to address the inefficiency of existing vaginal ultrasound probes when fitted with sterile protective sheaths.

[0034] The unfolding device of this sterile protective sleeve mainly includes: a base 100, a fixing ring 200, and a limiting ring 300. The fixing ring 200 is disposed on the base 100, and the limiting ring 300 is coaxially arranged with the fixing ring 200. The fixing ring 200 is used to be sleeved on the protective sleeve, and the limiting ring 300 is used to be disposed inside the protective sleeve. A limiting area is formed between the limiting ring 300 and the fixing ring 200. The limiting area is used to restrict the passage of the winding part of the protective sleeve.

[0035] Specifically, when the protective sleeve is in its rolled-up state, it has a single-loop winding portion. The further the blind end of the protective sleeve is from the opening, the smaller the width of the winding portion. In actual use, the fixing ring 200 and the limiting ring 300 are located inside and outside the protective sleeve, respectively. The fixing ring 200 and the limiting ring 300 can "clamp" the protective sleeve, preventing the winding portion from passing through the limiting area formed between the limiting ring 300 and the fixing ring 200. At this time, the inner surface of the blind end of the protective sleeve is exposed, allowing medical personnel to easily inject coupling agent into the protective sleeve while simultaneously inserting the rod-type vaginal ultrasound probe into the sterile protective sleeve. As the rod-type vaginal ultrasound probe is gradually inserted, the blind end of the protective sleeve moves away from the opening, and the rolled-up protective sleeve gradually unfolds until it completely wraps around the rod-type vaginal ultrasound probe. During this process, one person can complete the entire operation, and the coupling agent inside the sterile protective sleeve is less likely to come into contact with the gloves, improving efficiency.

[0036] Preferably, the width of the limiting area in the radial direction of the limiting ring 300 is a preset width. Since some protective sleeves have rubber rings at the opening edge to maintain the shape of the opening of the protective sleeve, the preset width can be set to be slightly larger than the width of the rubber ring. When the rod-type vaginal ultrasound long probe is gradually inserted, the blind end of the protective sleeve moves away from the opening of the protective sleeve until the protective sleeve is completely wrapped around the rod-type vaginal ultrasound long probe. At this time, the rubber ring of the protective sleeve can pass through the limiting area, thereby eliminating the need to remove the protective sleeve from the fixing ring 200 and the limiting ring 300, thus improving efficiency.

[0037] The procedure of attaching a sterile protective sleeve to a vaginal ultrasound probe requires two people to work simultaneously. One person, wearing sterile plastic gloves, first unfolds the sterile protective sleeve, while the other person pre-applies coupling agent to the ultrasound probe or sprays it directly onto the inner surface of the blind end of the sterile protective sleeve. Then, the long, rod-type vaginal ultrasound probe is inserted into the sterile protective sleeve. However, because the sterile protective sleeve is initially rolled up and contains no lubricant, unfolding it while wearing gloves is extremely cumbersome and inconvenient. If any contaminated surrounding environment is touched, the gloves and sterile protective sleeve must be changed again before proceeding, resulting in low efficiency. Furthermore, the coupling agent inside the sterile protective sleeve can easily leak out and come into contact with the gloves, causing them to become sticky and affecting other procedures.

[0038] In use, the protective sleeve can be placed inside the fixing ring 200 first, and then the limiting ring 300 can be placed inside the protective sleeve, so that the limiting ring 300 and the fixing ring 200 "clamp" the protective sleeve. At this time, the coupling agent can be easily injected into the protective sleeve. At the same time, the rod-type vaginal ultrasound probe can be inserted into the sterile protective sleeve. The rolled-up protective sleeve gradually unfolds until it completely wraps around the ultrasound probe. During this process, one person can complete the entire operation, and the coupling agent inside the sterile protective sleeve is less likely to come into contact with the gloves, thus improving efficiency.

[0039] In some embodiments, such as Figures 1 to 3 As shown, the outer diameter of the limiting ring 300 is larger than the inner diameter of the fixing ring 200, and the end of the fixing ring 200 away from the limiting ring 300 is connected to the base 100.

[0040] Specifically, in actual use, the protective sleeve can be placed inside the fixing ring 200 first. Then, the rolled part of the protective sleeve is pushed outwards slightly, and finally, the limiting ring 300 is placed inside the protective sleeve, so that the limiting ring 300 and the fixing ring 200 "clamp" the protective sleeve. This arrangement facilitates the full exposure of the inner surface of the blind end of the protective sleeve to allow for the injection of coupling agent into the sleeve, and also makes it easier for medical personnel to insert the long probe of the rod-type vaginal ultrasound into the sterile protective sleeve. It should be noted that the outer diameter of the limiting ring 300 can also be set smaller than the inner diameter of the fixing ring 200 to facilitate the fixation of the sterile protective sleeve.

[0041] In some embodiments, such as Figure 3 As shown, the unfolding device further includes: a plurality of roller portions 400, which are respectively sleeved on the fixed ring 200 and the limiting ring 300, and the plurality of roller portions 400 are rotatably arranged along the tangent of the fixed ring 200 in the circumferential direction and the tangent of the limiting ring 300 in the circumferential direction, respectively, and the protective sleeve rolls and rubs against the fixed ring 200 and the limiting ring 300 respectively through the plurality of roller portions 400.

[0042] Specifically, by providing several roller portions 400, the friction between the protective sleeve and the fixing ring 200 and the limiting ring 300 can be reduced, thereby protecting the protective sleeve. Preferably, the roller portions 400 are made of a flexible material such as rubber and are respectively fitted onto the fixing ring 200 and the limiting ring 300.

[0043] In some embodiments, such as Figure 3 As shown, several roller sections 400 are evenly distributed on the fixed ring 200 and the limiting ring 300.

[0044] Preferably, the fixing ring 200 and the limiting ring 300 are respectively provided with two or three roller portions 400, and the sum of the arc lengths of the two or three roller portions 400 is greater than half of the circumference of the fixing ring 200 or the limiting ring 300, so that most of the protective sleeve rolls and rubs against the fixing ring 200 or the limiting ring 300 through the roller portions 400 respectively.

[0045] In some embodiments, such as Figures 1 to 3 As shown, the fixing ring 200 includes: a first fixing arc 210, which is disposed on the base 100;

[0046] The first movable arc 220 is hinged to the first fixed arc 210, and the first movable arc 220 and the first fixed arc 210 are concentrically arranged.

[0047] The limiting ring 300 includes: a second fixed arc 310;

[0048] The second movable arc 320 is hinged to the second fixed arc 310, and the second movable arc 320 and the second fixed arc 310 are concentrically arranged.

[0049] The centripetal direction of the first fixed arc 210 is the same as that of the second fixed arc 310.

[0050] Specifically, one end of the first movable arc 220 and one end of the second movable arc 320 are hinged to one end of the first fixed arc 210 and one end of the second fixed arc 310, respectively. The other ends of the first movable arc 220 and the second movable arc 320 can move along the centrifugal direction of the first fixed arc 210 and the second fixed arc 310, respectively, so that the fixing ring 200 and the limiting ring 300 form an opening. In actual use, when the rolled-up protective sleeve is gradually unfolded until it completely wraps around the ultrasonic long probe, the ultrasonic long probe can be moved towards the centrifugal direction of the first fixed arc 210. At this time, the first movable arc 220 and the second movable arc 320 rotate, so that the fixing ring 200 and the limiting ring 300 form an opening, and the ultrasonic long probe can leave the fixing ring 200 and the limiting ring 300 through the opening. During this period, one person can complete the entire operation, and the coupling agent inside the sterile protective sleeve is less likely to come into contact with the gloves, improving efficiency.

[0051] Preferably, it also includes several elastic elements, which are used to drive the other end of the first movable arc 220 and the other end of the second movable arc 320 to move along the centripetal direction of the first fixed arc 210 and the centripetal direction of the second fixed arc 310, respectively, to form a complete ring, which facilitates the fixation of the sterile protective sleeve.

[0052] In some embodiments, such as Figures 1 to 3 As shown, the base 100 includes an arc-shaped seat 110, which is connected to one end of the first fixed arc 210 away from the second fixed arc 310. The first fixed arc 210 and the arc-shaped seat 110 are arranged coaxially, and the centripetal direction of the first fixed arc 210 is the same as the centripetal direction of the arc-shaped seat 110.

[0053] Specifically, the end of the arc-shaped seat 110 that is away from the first fixed arc 210 can be fixed to the ground, making it convenient for medical staff to operate.

[0054] In some embodiments, such as Figures 1 to 3 As shown, the unfolding device also includes a pivot member 500, which is connected between the limiting ring 300 and the base 100. The pivot member 500 is used to drive the limiting ring 300 to move in a direction away from the fixed ring 200.

[0055] Specifically, the pivot 500 allows the limiting ring 300 to move toward or away from the fixing ring 200, giving the limiting ring 300 a preset movement path and preventing it from falling off. When a protective cover needs to be secured, the limiting ring 300 can be moved away from the fixing ring 200, increasing the width of the limiting area and facilitating the installation of the protective cover.

[0056] In some embodiments, such as Figures 1 to 3 As shown, the pivot member 500 includes: a fixing part 510, which is disposed on the base 100;

[0057] The pivot portion 520 is parallel to the axis of the fixing ring 200. One end of the pivot portion 520 is pivotally connected to the fixing portion 510, and the other end is connected to the second fixing arc 310. The pivot portion 520 is driven to form a preset angle with the axis of the fixing ring 200.

[0058] Specifically, the preset included angle is preferably between 0 degrees and 90 degrees. When the preset included angle is 90 degrees, the limiting ring 300 and the fixing ring 200 are perpendicular. At this time, the width of the limiting area is large, and the protective cover can be installed very conveniently.

[0059] In some embodiments, such as Figures 2 to 3 As shown, the pivot member 500 further includes a coupling agent cavity disposed within the pivot portion 520, the coupling agent cavity being used to contain coupling agent;

[0060] A plurality of injection holes 530 are provided on the second fixed arc 310, and all of the plurality of injection holes 530 are connected to the coupling agent cavity.

[0061] In practical use, coupling agent can be injected into the coupling agent cavity, which can reduce the manual operation of injecting coupling agent into the protective sleeve and improve efficiency.

[0062] In some embodiments, such as Figure 3 As shown, the pivot 500 further includes a press-type pump head 540, the pressing portion of which protrudes from the pivot 520, and the press-type pump head 540 is used to inject the coupling agent in the coupling agent cavity into a plurality of injection holes 530 by being driven.

[0063] In actual use, coupling agent can be injected into the coupling agent cavity. After the protective sleeve is installed, the pressing part can be pressed to allow the coupling agent in the coupling agent cavity to be injected into the protective sleeve through several injection holes 530. This reduces the manual operation of injecting coupling agent into the protective sleeve, and the coupling agent in the sterile protective sleeve is less likely to come into contact with the gloves, thus improving efficiency.

[0064] In summary, a device for unfolding a sterile protective sleeve is provided, comprising a base, a fixing ring, and a limiting ring. The fixing ring is disposed on the base and is used to fit onto the protective sleeve. The limiting ring is coaxially arranged with the fixing ring and is used to fit inside the protective sleeve. A limiting area is formed between the limiting ring and the fixing ring, which restricts the passage of the rolled portion of the protective sleeve. During use, the protective sleeve is first placed inside the fixing ring, and then the limiting ring is placed inside the protective sleeve, so that the limiting ring and the fixing ring "clamp" the protective sleeve. At this time, coupling agent can be easily injected into the protective sleeve, and a rod-type vaginal ultrasound probe can be inserted into the sterile protective sleeve. The rolled-up protective sleeve gradually unfolds until it completely wraps around the ultrasound probe. During this process, one person can complete the entire operation, and the coupling agent inside the sterile protective sleeve is less likely to come into contact with gloves, thus improving efficiency.

[0065] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A sterile drape deployment device, comprising: include: Base; A retaining ring is disposed on the base and is used to be fitted onto the protective sleeve. A limiting ring is provided, which is coaxially arranged with the fixing ring. The limiting ring is used to be disposed inside the protective sleeve. A limiting area is formed between the limiting ring and the fixing ring. The width of the limiting area in the radial direction of the limiting ring is a preset width. The limiting area is used to restrict the passage of the winding part of the protective sleeve.

2. The sterile drape deployment device of claim 1, wherein, The outer diameter of the limiting ring is larger than the inner diameter of the fixing ring, and the end of the fixing ring opposite to the limiting ring is connected to the base.

3. The sterile drape deployment device of claim 2, wherein, The unfolding device further includes: a plurality of rollers, which are respectively sleeved on the fixed ring and the limiting ring, and are rotatably arranged along the tangent of the fixed ring in the circumferential direction and the tangent of the limiting ring in the circumferential direction, respectively. The protective sleeve rolls and rubs against the fixed ring and the limiting ring respectively through the plurality of rollers.

4. The sterile drape deployment device of claim 3, wherein, Several rollers are evenly distributed on the fixed ring and the limiting ring, respectively.

5. The sterile drape deployment device of claim 2, wherein, The fixing ring includes: a first fixing arc, which is disposed on the base; A first movable arc, the first movable arc being hinged to the first fixed arc, the first movable arc and the first fixed arc being concentrically arranged; The limiting ring includes: a second fixed arc; The second movable arc is hinged to the second fixed arc, and the second movable arc and the second fixed arc are concentrically arranged; The centripetal direction of the first fixed arc is the same as that of the second fixed arc.

6. The sterile drape deployment device of claim 5, wherein, The base includes an arc-shaped seat, which is connected to one end of the first fixed arc that is away from the second fixed arc. The first fixed arc and the arc-shaped seat are arranged coaxially, and the centripetal direction of the first fixed arc is the same as that of the arc-shaped seat.

7. The sterile drape deployment device of claim 5, wherein, The unfolding device further includes a pivot member, which is connected between the limiting ring and the base respectively, and the pivot member is used to drive the limiting ring to move in a direction away from the fixed ring.

8. The sterile drape deployment device of claim 7, wherein, The pivot member includes a fixing part, which is disposed on the base; The pivot joint is parallel to the axis of the fixed ring. One end of the pivot joint is pivotally connected to the fixed part, and the other end is connected to the second fixed arc. The pivot joint is driven to form a preset angle with the axis of the fixed ring.

9. The sterile drape deployment device of claim 8, wherein, The pivot member further includes: a coupling agent cavity, the coupling agent cavity being disposed within the pivot portion, the coupling agent cavity being used to contain coupling agent; A plurality of injection holes are provided on the second fixed arc, and all of the plurality of injection holes are connected to the coupling agent cavity.

10. The sterile drape deployment device of claim 9, wherein, The pivot member further includes a press-type pump head, wherein the pressing part of the press-type pump head protrudes from the pivot member, and the press-type pump head is used to inject the coupling agent in the coupling agent cavity into a plurality of injection holes by being driven.