Medical lithotomy position adjustable shoulder rest anesthesia screen

By designing an adjustable anesthesia screen support structure, the problem of breathing obstruction caused by the surgical drape covering the patient's head was solved, ensuring the safety and operational stability of lithotomy surgery.

CN223641014UActive Publication Date: 2025-12-09ZHEJIANG UNIV
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Patent Information

Application Number
CN202520269914.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2025-12-09
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

During lithotomy, the lack of proper support when the surgical drape covers the patient's head can lead to respiratory obstruction and pose a potential danger, especially for patients under conscious local anesthesia or spinal anesthesia.

Method used

Design an anesthesia screen with adjustable shoulder support for the lithotomy position. The screen is formed by adjustable mounting blocks, vertical rods, horizontal tubes and bolts to support the surgical drape and fix the patient's shoulder. It can adapt to different operating tables and patient shoulder positions to ensure unobstructed breathing.

Benefits of technology

It enables the support of the surgical drape during lithotomy, ensuring unobstructed breathing for the patient, stabilizing the patient's shoulders, adapting to different operating tables, and enhancing the safety and stability of the surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medical lithotomy position adjustable shoulder rest anesthesia screen which comprises guide rails arranged on the two sides of an operating table and installation blocks arranged on the two sides of the operating table in a sliding mode. A vertical rod is fixedly connected to the upper portion of the mounting block, and sliding grooves are formed in the front side and the rear side of the vertical rod correspondingly. The side part of the vertical rod is in sliding connection with a moving block; an adjusting mechanism is arranged on the inner side of the moving block, and a shoulder support is connected to the adjusting mechanism; a moving rod is slidably connected to the upper end of the vertical rod, transverse pipes are arranged on the inner side of the moving rod, and a butt joint mechanism is arranged between the transverse pipes on the two sides; the outer side of the transverse pipe is connected with an extension mechanism; second threaded through holes are formed in the outer sides of the upper ends of the vertical rods, and second bolts are arranged in the second threaded through holes. According to the utility model, all parts can be flexibly adjusted, so that not only can various operating tables be adapted, but also effective support can be provided for surgical drapes, and a patient can be fixed by virtue of double shoulder rests to ensure smooth operation.
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Description

Technical Field

[0001] This utility model relates to an anesthesia screen with adjustable shoulder support for lithotomy position, belonging to the field of medical device technology. Background Technology

[0002] In the field of surgical medicine, the lithotomy position is a common and important surgical position, widely used in various surgical scenarios such as obstetrics and gynecology, urology, and proctology. During lithotomy surgery, to ensure the smooth progress of the operation, expose the surgical site, reduce the risk of infection, and protect the patient's privacy and dignity, doctors typically use a surgical drape that has undergone strict sterilization to cover the patient's non-surgical areas. The surgical drape not only effectively isolates the surgical area from the external environment, reducing the possibility of external bacterial contamination of the wound, but also allows for precise positioning of the surgical area through pre-designed openings, avoiding accidental damage to surrounding normal tissues from surgical instruments. At the same time, it plays a crucial role in protecting patient privacy and alleviating patient anxiety.

[0003] However, a significant problem arises when using a surgical drape to cover a patient's head. Due to the lack of proper support, the drape can easily cover the patient's face directly, obstructing breathing. For awake patients undergoing local anesthesia or spinal anesthesia, this can even lead to respiratory distress and other dangerous situations, posing a potential threat to the patient's surgical safety. Therefore, appropriate support equipment is needed to support the drape, allowing it to cover the patient's head like a tent, ensuring unimpeded breathing and enabling the surgery to proceed normally. Utility Model Content

[0004] The purpose of this invention is to provide an anesthesia screen with adjustable shoulder supports for the lithotomy position. All components of this invention are flexibly adjustable, adaptable to various operating tables, providing effective support for the surgical drape, and securing the patient with the double shoulder supports to ensure a smooth surgical procedure.

[0005] The technical solution of this utility model is as follows: An anesthesia screen with adjustable shoulder support for lithotomy is installed on guide rails on both sides of the operating table, including mounting blocks that are slidably installed on both sides of the operating table; a vertical rod is fixedly connected above the mounting block, and the front and rear sides of the vertical rod are respectively provided with sliding grooves; a moving block is slidably connected to the side of the vertical rod, and the moving block cooperates with the front and rear sliding grooves; an adjustment mechanism is provided inside the moving block, and a shoulder support is connected to the adjustment mechanism; a moving rod is slidably connected to the upper end of the vertical rod, and a horizontal tube is provided inside the moving rod, and a docking mechanism is provided between the two horizontal tubes; an extension mechanism is connected to the outer side of the horizontal tube; a second threaded through hole is provided on the outer side of the upper end of the vertical rod, and a second bolt is provided in the second threaded through hole, and the second bolt abuts against the moving rod.

[0006] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen has a square groove on the mounting block, in which a guide rail installed on the side of the operating table is provided; the side of the mounting block has a first threaded through hole communicating with the square groove, and a first bolt is provided in the first threaded through hole, which abuts against the guide rail.

[0007] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen, the adjustment mechanism includes a first round tube disposed inside the moving block, a first L-shaped round tube at the other end of the first round tube, a second L-shaped round tube at the other end of the first L-shaped round tube, a second round tube at the other end of the second L-shaped round tube, and the outer end of the second round tube is fixedly connected to the shoulder support.

[0008] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen has a third threaded through hole at the end of the first round tube, and a third bolt inside the third threaded through hole, which abuts against the first L-shaped round tube; a fourth threaded through hole at the end of the first L-shaped round tube, and a fourth bolt inside the fourth threaded through hole, which abuts against the second L-shaped round tube; and a fifth threaded through hole at the end of the second round tube, and a fifth bolt inside the fifth threaded through hole, which abuts against the second L-shaped round tube.

[0009] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen, the docking mechanism includes a third round tube set at the end of a horizontal tube on one side, the outer end of the third round tube is provided with a connecting sleeve, and the two ends of the connecting sleeve are respectively provided with a first thread; the ends of the horizontal tubes on both sides are provided with a second thread, and the second thread is screwed into the first thread.

[0010] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen, the extension mechanism includes a mounting component, the mounting component has a circular groove, the circular groove cooperates with a horizontal tube; the front side of the mounting component has a sixth threaded through hole, the sixth threaded through hole has a sixth bolt, the sixth bolt abuts against the horizontal tube; the upper side of the mounting component has a rotating base, the rotating base has multiple first docking claws above it; the rotating base is connected to a steering component, the lower end of the steering component has multiple second docking claws, the second docking claws engage with the first docking claws; the side of the steering component has a fourth circular tube.

[0011] The aforementioned medical lithotomy position adjustable shoulder support anesthesia screen has a through hole on the steering component; a threaded hole on the rotating chassis; and a seventh bolt on the steering component, the threaded end of which passes through the through hole and engages with the threaded hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In this utility model, the square groove of the mounting block passes through the guide rail on the side of the operating table and is moved to a suitable position. Then, the vertical rod is moved upward so that the horizontal tube moves to a suitable height. A second bolt is then screwed into the second threaded through hole, and its end abuts against the vertical rod, fixing the vertical rod. The two horizontal tubes are then connected by a docking mechanism, thus effectively and stably supporting the surgical drape. The moving block slides within the groove, causing the adjustment mechanism to move onto the operating table surface, adapting to the height difference between the guide rail and the operating table surface in different operating tables. The adjustment mechanism is then adjusted to position the shoulder support to support the patient's shoulder. Afterward, the surgical drape is covered for surgery. The extension mechanism can also support the surgical drape forward, backward, or outward, increasing the area supported by the drape. For general anesthesia, the screen frame serves to support and observe the endotracheal tube. This invention, designed as a gate-shaped shoulder support anesthesia screen for the lithotomy position, effectively separates the sterile and anesthetic observation areas. This allows for more comfortable and secure shoulder fixation for the patient in the lithotomy position, ensuring greater stability for the surgeon and allowing the anesthesiologist to easily insert, fix, adjust, and observe the endotracheal tube during surgery, thus guaranteeing sterility of the surgical area and anesthetic safety. Furthermore, this invention allows for flexible adjustment of all components, adapting to various operating tables, providing effective support for the surgical drape, and utilizing the shoulder support for patient fixation, offering high flexibility.

[0014] 2. In this utility model, since the adjustment mechanism uses round tubes, the connected round tubes can extend and retract while also turning to adjust the angle, thereby better adapting to the patient, and then being fastened with corresponding bolts.

[0015] 3. In this utility model, the horizontal tubes on both sides are connected by a docking mechanism. The third round tube set on one side of the horizontal tube is pulled out toward the opposite side of the horizontal tube. The first thread on the outside of the connecting sleeve is screwed into the second thread on the opposite side of the horizontal tube to fix the connection between the two horizontal tubes. When storing after use, the connecting sleeve is unscrewed to disconnect from the opposite side of the horizontal tube. Then the third round tube is retracted inward, and the first thread on the inside of the connecting sleeve is screwed into the second thread on the horizontal tube of that side to prevent the third round tube from sliding out on its own. Attached Figure Description

[0016] Figure 1 This is an installation diagram of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the extension mechanism;

[0019] Figure 4 This is a structural diagram of the rotating chassis;

[0020] Figure 5 This is a cross-sectional view of the docking mechanism.

[0021] The labels in the attached diagram are as follows: 1-Mounting block, 2-Square groove, 3-Vertical rod, 4-Slide groove, 5-Moving block, 6-Adjusting mechanism, 7-Shoulder support, 8-Moving rod, 9-Horizontal tube, 10-Connecting mechanism, 11-Extension mechanism, 12-Second threaded through hole, 13-Second bolt, 14-First threaded through hole, 15-First bolt, 16-First round tube, 17-First L-shaped round tube, 18-Second L-shaped round tube, 19-Second round tube, 20-Third threaded through hole, 21-Third bolt 22-Fourth threaded through hole, 23-Fourth bolt, 24-Fifth threaded through hole, 25-Fifth bolt, 26-Third round tube, 27-Connecting sleeve, 28-First thread, 29-Second thread, 30-Mounting part, 31-Round groove, 32-Sixth threaded through hole, 33-Sixth bolt, 34-Rotating base, 35-First mating claw, 36-Steering part, 37-Second mating claw, 38-Through hole, 39-Threaded hole, 40-Seventh bolt, 41-Fourth round tube. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0023] Example: An anesthesia screen with adjustable shoulder support for lithotomy position, configured as follows Figure 1-5 As shown, the guide rails on both sides of the operating table include mounting blocks 1 symmetrically arranged on both guide rails, such as... Figure 2As shown, the mounting block 1 has a square groove 2, which mates with the guide rail. The cross-sectional dimension of the square groove is larger than that of the guide rail, allowing the mounting block to be installed on guide rails of various specifications. The side of the mounting block 1 has a first threaded through hole 14 communicating with the square groove 2. A first bolt 15 is installed in the first threaded through hole 14, and the first bolt 15 abuts against the guide rail. By tightening the first bolt 15, the mounting block 1 is firmly fixed to the guide rail, preventing displacement of the screen during surgery. A vertical rod 3 is fixedly connected above the mounting block 1, and sliding grooves 4 are provided on the front and rear sides of the vertical rod 3. A movable block 5 is slidably connected to the side of the vertical rod 3, and the movable block 5 mates with the front and rear sliding grooves 4. An adjustment mechanism 6 is provided inside the movable block 5, and a shoulder support 7 is connected to the adjustment mechanism 6. The surface of the 7 is covered with soft sponge and breathable leather, providing comfortable support for the patient's shoulders and avoiding pressure. The upper end of the vertical rod 3 is slidably connected to a movable rod 8. The inner side of the movable rod 8 is provided with a horizontal tube 9, which is a hollow stainless steel tube that is lightweight and strong enough. A docking mechanism 10 is provided between the two horizontal tubes 9 to connect the two horizontal tubes 9, making the entire screen structure more stable. An extension mechanism 11 is connected to the outer side of the horizontal tube 9, which can expand the range of the surgical drape as needed. The upper outer side of the vertical rod 3 is provided with a second threaded through hole 12, and a second bolt 13 is provided in the second threaded through hole 12. The second bolt 13 abuts against the movable rod 8. By tightening the second bolt 13, it can abut against the movable rod 8, thereby fixing the position of the movable rod 8.

[0024] Preferably, such as Figure 2 As shown, the adjustment mechanism 6 includes a first circular tube 16 disposed inside the movable block 5. The other end of the first circular tube 16 is provided with a first L-shaped circular tube 17, the other end of the first L-shaped circular tube 17 is provided with a second L-shaped circular tube 18, and the other end of the second L-shaped circular tube 18 is provided with a second circular tube 19. The outer end of the second circular tube 19 is fixedly connected to the shoulder support 7. The end of the first circular tube 16 is provided with a third threaded through hole 20, in which a third bolt 21 is disposed, abutting against the first L-shaped circular tube 17. The end of the first L-shaped circular tube 17 is provided with a fourth threaded through hole 22, in which a fourth bolt 23 is disposed, abutting against the second L-shaped circular tube 18. The end of the second circular tube 19 is provided with a fifth threaded through hole 24, in which a fifth bolt 25 is disposed, abutting against the second L-shaped circular tube 18. Because the adjustment mechanism 6 uses round tubes, the connected round tubes can extend and retract while also turning to adjust the angle, thus better adapting to different shoulder positions and angles of the patient. Then, they are tightened with corresponding bolts to ensure the stability of the shoulder support 7.

[0025] Preferably, such as Figure 2 and 5As shown, the docking mechanism 10 includes a third circular tube 26 disposed at the end of one side of the horizontal tube 9. The outer end of the third circular tube 26 is provided with a connecting sleeve 27, and both ends of the connecting sleeve 27 are respectively provided with first threads 28. The ends of both sides of the horizontal tube 9 are provided with second threads 29, which engage with the first threads 28. The docking mechanism 10 connects the two horizontal tubes 9. The third circular tube 26 on one side of the horizontal tube 9 is pulled out towards the opposite side of the horizontal tube 9, and the first thread 28 on the outer side of the connecting sleeve 27 engages with the second thread 29 on the opposite side of the horizontal tube 9, thus connecting and fixing the two horizontal tubes 9 and enhancing the overall stability of the screen. When storing after use, the connecting sleeve 27 is unscrewed to disconnect from the opposite side of the horizontal tube 9, and then the third circular tube 26 is retracted inward, causing the first thread 28 on the inner side of the connecting sleeve 27 to engage with the second thread 29 on the horizontal tube 9 of that side, thereby preventing the third circular tube 26 from slipping out and facilitating storage.

[0026] Preferably, such as Figure 3 and 4 As shown, the extension mechanism 11 includes a mounting component 30, which has a circular groove 31 that mates with the horizontal tube 9. The mounting component 30 has a sixth threaded through hole 32 on its front side, and a sixth bolt 33 is installed inside the sixth threaded through hole 32. The sixth bolt 33 abuts against the horizontal tube 9. By tightening the sixth bolt 33, the mounting component 30 is fixed to the horizontal tube 9. The mounting component 30 has a rotating base 34 on its upper side, and multiple first docking claws 35 are located above the rotating base 34. A steering component 36 is connected above the rotating base 34, and multiple second docking claws 37 are located at the lower end of the steering component 36. The second docking claws 37 engage with the first docking claws 35. A fourth circular tube 41 is located on the side of the steering component 36, and the fourth circular tube 41 is used to support the surgical drape. The steering component 36 has a through hole 38; the rotating base 34 has a threaded hole 39; the steering component 36 has a seventh bolt 40, the threaded end of which passes through the through hole 38 and engages with the threaded hole 39. When it is necessary to increase the range of the surgical drape support, before docking the docking mechanism 10, align the circular groove 31 on the mounting component 30 with the horizontal tube 9 and insert it. After adjusting to the appropriate position, tighten the sixth bolt 33 to fix the mounting component 30. Then, adjust the angle of the fourth circular tube 41 by rotating the steering component 36. After adjustment, dock the steering component 36 with the rotating base 34 and engage the first docking claw 35 and the second docking claw 37. Finally, screw the seventh bolt 40 into the threaded hole 39 to achieve a fixed connection between the steering component 36 and the rotating base 34.

[0027] Working principle:

[0028] Overall Installation and Fixing: Before the surgery begins, the anesthesia screen needs to be installed on the guide rails on both sides of the operating table. Place the mounting blocks 1 symmetrically on the guide rails, ensuring the square grooves 2 on the mounting blocks 1 engage with the guide rails. The mounting blocks 1 can then slide along the guide rails to adjust their position. Once the position is determined, tighten the first bolt 15 inside the first threaded through hole 14 on the side of the mounting block 1, causing the first bolt 15 to abut against the guide rail, thus firmly fixing the mounting block 1 to the guide rail and ensuring the entire screen does not shift during the surgery. Then, move the vertical rod 3 upwards, moving the horizontal tube 9 to the appropriate height. Finally, screw the second bolt 13 into the second threaded through hole 12, ensuring its end abuts against the vertical rod 3, thus fixing the vertical rod 3 and determining the height of the surgical drape.

[0029] Shoulder support height and angle adjustment: The movable block 5 engages with the sliding groove 4 on the side of the vertical rod 3, allowing it to slide flexibly up and down on the vertical rod 3. Based on the patient's shoulder height and the height difference between the guide rail and the operating table surface, the movable block 5 is adjusted to a suitable position. Then, the second bolt 13 inside the second threaded through hole 12 on the outer side of the upper end of the vertical rod 3 is tightened, causing the second bolt 13 to abut against the movable rod 8, thus fixing the position of the movable block 5 and determining the height of the shoulder support 7. The adjustment mechanism 6 consists of multiple connected round tubes that can extend and retract and rotate. Based on the specific position and angle of the patient's shoulder, the extension length and rotation angle of each round tube are adjusted to better fit the patient. After adjustment, the bolts inside the threaded through holes 38 at the ends of each round tube are tightened to fix the relative positions of the tubes, ensuring that the shoulder support 7 can stably support the patient's shoulder.

[0030] Horizontal tube connection and adjustment: The two horizontal tubes 9 are connected via a docking mechanism 10. In use, pull the third round tube 26 at one end of the horizontal tube 9 toward the opposite horizontal tube 9, and screw the first thread 28 on the outside of the connecting sleeve 27 with the second thread 29 on the opposite horizontal tube 9 to connect and fix the two horizontal tubes 9, enhancing the overall stability of the screen. When storing after surgery, unscrew the connecting sleeve 27 to disconnect it from the opposite horizontal tube 9, retract the round tube inward, and then screw the first thread 28 on the inside of the connecting sleeve 27 with the second thread 29 on the horizontal tube 9 to prevent the round tube from slipping out.

[0031] Surgical drape support range expansion: When it is necessary to increase the support range of the surgical drape, before docking with the docking mechanism 10, align the circular groove 31 on the mounting part 30 of the extension mechanism 11 with the horizontal tube 9 and insert it, allowing the mounting part 30 to slide along the horizontal tube 9. After adjusting to the appropriate position, tighten the sixth bolt 33 in the sixth threaded through hole 32 on the front side of the mounting part 30, so that the sixth bolt 33 abuts against the horizontal tube 9, fixing the mounting part 30. Next, rotate the steering part 36 to adjust the angle of the fourth circular tube 41 support. After adjustment, dock the steering part 36 with the rotating base 34, making the docking claws of the two fit together. Finally, screw the seventh bolt 40 into the threaded hole 39 to achieve a fixed connection between the steering part 36 and the rotating base 34, ensuring that the surgical drape can be supported over a larger range.

Claims

1. An adjustable shoulder support anesthesia screen for lithotomy position, mounted on guide rails on both sides of the operating table, characterized in that: The device includes mounting blocks (1) that are slidably mounted on both sides of the operating table; a vertical rod (3) is fixedly connected above the mounting block (1), and a sliding groove (4) is provided on the front and rear sides of the vertical rod (3); a moving block (5) is slidably connected to the side of the vertical rod (3), and the moving block (5) cooperates with the front and rear sliding grooves (4); an adjustment mechanism (6) is provided on the inner side of the moving block (5), and a shoulder support (7) is connected to the adjustment mechanism (6); a moving rod (8) is slidably connected to the upper end of the vertical rod (3), and a horizontal tube (9) is provided on the inner side of the moving rod (8), and a docking mechanism (10) is provided between the two horizontal tubes (9); an extension mechanism (11) is connected to the outer side of the horizontal tube (9); a second threaded through hole (12) is provided on the outer side of the upper end of the vertical rod (3), and a second bolt (13) is provided in the second threaded through hole (12), and the second bolt (13) abuts against the moving rod (8).

2. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 1, characterized in that: The mounting block (1) is provided with a square groove (2), and a guide rail installed on the side of the operating table is provided in the square groove (2); the side of the mounting block (1) is provided with a first threaded through hole (14) communicating with the square groove (2), and a first bolt (15) is provided in the first threaded through hole (14), and the first bolt (15) abuts against the guide rail.

3. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 1, characterized in that: The adjustment mechanism (6) includes a first round tube (16) disposed inside the moving block (5), the other end of the first round tube (16) is provided with a first L-shaped round tube (17), the other end of the first L-shaped round tube (17) is provided with a second L-shaped round tube (18), the other end of the second L-shaped round tube (18) is provided with a second round tube (19), and the outer end of the second round tube (19) is fixedly connected to the shoulder support (7).

4. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 3, characterized in that: The first round tube (16) has a third threaded through hole (20) at its end, and a third bolt (21) is provided in the third threaded through hole (20). The third bolt (21) abuts against the first L-shaped round tube (17). The first L-shaped round tube (17) has a fourth threaded through hole (22) at its end, and a fourth bolt (23) is provided in the fourth threaded through hole (22). The fourth bolt (23) abuts against the second L-shaped round tube (18). The second round tube (19) has a fifth threaded through hole (24) at its end, and a fifth bolt (25) is provided in the fifth threaded through hole (24). The fifth bolt (25) abuts against the second L-shaped round tube (18).

5. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 1, characterized in that: The docking mechanism (10) includes a third round tube (26) disposed at the end of a horizontal tube (9) on one side. The outer end of the third round tube (26) is provided with a connecting sleeve (27), and the two ends of the connecting sleeve (27) are respectively provided with a first thread (28). The ends of the horizontal tubes (9) on both sides are provided with a second thread (29), and the second thread (29) is screwed into the first thread (28).

6. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 1, characterized in that: The extension mechanism (11) includes a mounting component (30), which has a circular groove (31) that engages with a horizontal tube (9). The mounting component (30) has a sixth threaded through hole (32) on its front side, and a sixth bolt (33) is provided in the sixth threaded through hole (32). The sixth bolt (33) abuts against the horizontal tube (9). The mounting component (30) has a rotating base (34) on its upper side, and a plurality of first docking claws (35) are provided above the rotating base (34). A steering component (36) is connected above the rotating base (34), and a plurality of second docking claws (37) are provided at the lower end of the steering component (36). The second docking claws (37) engage with the first docking claws (35). A fourth circular tube (41) is provided on the side of the steering component (36).

7. The anesthesia screen with adjustable shoulder support for lithotomy position as described in claim 6, characterized in that: The steering component (36) has a through hole (38); the rotating chassis (34) has a threaded hole (39); the steering component (36) has a seventh bolt (40), the threaded end of the seventh bolt (40) passes through the through hole (38) and engages with the threaded hole (39).