Surgical table coupling mechanism
The surgical table coupling mechanism addresses the challenge of cumbersome and risky two-person component handling by enabling single-handed, ergonomic operation with a pivotable engaging arm and handle mechanism, ensuring secure and efficient attachment.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BAXTER MEDICAL SYST GMBH & CO KG
- Filing Date
- 2024-10-18
- Publication Date
- 2026-04-23
AI Technical Summary
Existing surgical table coupling mechanisms require two medical professionals to lift and manipulate heavy components, posing physical demands, risking injury and damage, and are time-consuming.
A surgical table coupling mechanism with an engaging arm pivotably connected at both ends, a handle mechanism, and a connecting member that allows for ergonomic operation, reducing physical effort and enabling single-handed use, with features like a resilient member and threaded handle for secure locking.
Facilitates single-person operation, reduces injury risk, minimizes damage, and enhances efficiency by providing intuitive and quick transitions between table configurations.
Smart Images

Figure CN2024125688_23042026_PF_FP_ABST
Abstract
Description
SURGICAL TABLE COUPLING MECHANISMFIELD OF THE INVENTION
[0001] The present invention relates to a surgical table coupling mechanism for coupling components to a surgical table.BACKGROUND
[0002] It is well known in the art that one or more components may need to be coupled to surgical tables in preparation for and / or during a medical procedure. Typically the surgical table has one or more fixed female receiving portions on one or more sides of the surgical table for receiving male engaging portions found on the components. In order to couple a component to the surgical table, medical professionals are required to lift the component and manipulate it in order for the male engaging portion to engage and latch with the female receiving portion on the surgical table. This process is cumbersome, time consuming, and often requires at least two medical professionals to complete.
[0003] Furthermore, components for attaching to a surgical table are often heavy (in excess of 10 Kg) . The known coupling method for components poses physical demands on the medical professionals during installation and removal of components. There also exists a risk of injury to medical professionals as well as damage to the components and surgical table during component manipulation.
[0004] Therefore, there exists a need for a surgical table coupling mechanism that can be operated by a single medical professional, reduces the physical requirements on the medical professional, reduces the risk of injury and damage, and reduces the time required to couple components to the surgical table.
[0005] SUMMARY OF THE DISCLOSURE
[0006] According to a first aspect of the present disclosure there is provided a surgical table coupling mechanism for coupling components to a surgical table. The coupling mechanism comprises an engaging surface configured to engage with a corresponding portion of the surgical table. The coupling mechanism further comprises an engaging arm pivotably connected at a point between a first end and a second end of the engaging arm. The engaging arm comprises a coupling portion at the first end configured to engage with a corresponding portion of the surgical table. The coupling mechanism further comprises a handle mechanism operably coupled to the engaging arm. The handle mechanism comprises a connecting arm pivotably connected at a point between a first end and a second end of the connecting member and operably coupled at a first end of the connecting member to the second end of the engaging arm. The handle mechanism further comprises a first connecting member operably coupled at a first end of the first connecting member to a second end of the connecting arm. The handle mechanism further comprises a handle operably coupled to a second end of the first connecting member. Operation of the handle between a first position and a second position moves the engaging arm between a first, unlocked, position and a second, locked, position.
[0007] By providing an engaging surface configured to engage with a corresponding portion of the surgical table, the engaging surface may provide a physical indication to medical professionals that the coupling mechanism is aligned correctly with the surgical table.
[0008] By providing an engaging arm pivotably connected at a point between a first end and a second end of the engaging arm, the engaging arm may be locked into position without the need for rotating the component or surgical table.
[0009] By providing a first connecting member operably coupled at a first end of the first connecting member to a second end of the connecting arm, the connecting member may provide improved force translation within the coupling mechanism which may reduce the physical effort required by a user when operating the coupling mechanism.
[0010] By providing a handle mechanism operably coupled to the engaging arm, the coupling mechanism may offer improved ergonomics and ease of use for medical professionals. The handle may provide a convenient and intuitive means for operating the mechanism, potentially reducing the time and effort required to couple and uncouple components from the surgical table. This design feature may also enhance the overall efficiency of surgical procedures by allowing for quick and seamless transitions between different table configurations.
[0011] As used herein, the term "operably coupled" means a connection between two or more components that enables functional interaction between them, allowing forces or movements to be transmitted from one component to another. This coupling may be direct or indirect and can involve various mechanical linkages or interfaces.
[0012] Preferably the connecting arm is operably coupled to the second end of the engaging arm via a second connecting member. The second connecting member being pivotably coupled to the connecting arm at a first end and the engaging arm at a second end.
[0013] By providing a second connecting member, the handle, when in the second position, may be folded such that the handle lies perpendicular to the longitudinal axis of the surgical table. This may improve clearance around the surgical table and thus reduce the risk of collision with the handle during a surgical procedure. Such a collision being avoided may reduce the risk of accidental unlocking of the coupling mechanism. Preferably the first connecting member is configured to slide linearly along its longitudinal axis upon operation of the handle from the first position to the second position.
[0014] The first connecting member being configured to slide linearly enables force translation from the handle to the connecting arm which induces a rotational moment on the connecting arm.
[0015] Preferably the first connecting member is configured to displace laterally as the first connecting member slides linearly.
[0016] The first connecting member being configured to displace laterally enables the connecting member to rotate about a fixed point.
[0017] Preferably the handle is formed as a lever rotatably coupled to the first connecting member and configured to move between the first position and the second position.
[0018] The handle being formed as a lever may provide a large surface for a user to engage with which may reduce the force input required to move the handle between an unlocked and locked position.
[0019] Preferably the point at which the handle pivots is offset from the coupling point of the handle and the first connecting member such that moving the handle from the first position to the second position linearly slides the first connecting member from its first position to its second position.
[0020] Preferably a first end of the handle is formed as a cammed surface about which the handle pivots. Preferably, in the second position the restorative force, acting at the coupling point between the handle and first connecting member, retains the handle in the second position.
[0021] The restorative force acting at the coupling point and retaining the handle in the second position may reduce instances of the coupling mechanism being erroneously unlocked. The restorative force may be large enough that only an intended unlocking force provided by a user directly to the handle may overcome the restorative force and allow the coupling mechanism to be unlocked.
[0022] Preferably, when moving from the first position to the second position, the handle is configured to slide laterally with the first connecting member.
[0023] Preferably the handle mechanism further comprises a resilient member configured to bias the first connecting member towards a first position in which the engaging arm is in the unlocked position.
[0024] Providing a resilient member configured to bias the first connecting member towards a first position may reduce the input force required from the user in unlocking the coupling mechanism. The force required may be low enough that the mechanism can be actuated with the use of a single hand.
[0025] Further, the restorative force may retain the handle in the over-centre position and provide a minimum force to be overcome in order for the mechanism to be unlocked.
[0026] Preferably the surgical table coupling mechanism further comprises a housing for encasing the handle mechanism and at least a portion of the engaging arm. Preferably the housing comprises a hole for receiving the first connecting member.
[0027] Providing a housing for encasing the handle mechanism may prevent ingress of debris into the handle mechanism. This may extend the life of the mechanism and reduce the demand for maintenance.
[0028] Providing a hole for receiving the first connecting member allows for the first connecting member to displace laterally during operation of the mechanism. The hole is preferably sized to receive the first connecting member and allow for the lateral displacement of the first connecting member as it slides linearly.
[0029] Preferably the engaging arm and connecting member are pivotably connected to the housing.
[0030] The engaging arm and connecting member being pivotably connected to the housing may ensure that these components pivot within the same plane. This may reduce unwanted torsional or lateral motion of said components which may reduce instances of the mechanism locking up.
[0031] Preferably the handle comprises a female thread or a male thread and the first connecting member comprises a corresponding male thread or female thread. Rotation of the handle causes it to move between its first position and second position. Providing a handle with a thread may reduce the physical demand on the medical professional when operating the handle. This handle may be actuated by the use of a single hand.
[0032] Providing a handle with a thread may provide a more gradual transition between the locked and unlocked positions which may reduce instances of snagging within the mechanism.
[0033] Preferably the resilient member is a spring. Preferably the spring is a helical spring. Preferably the helical spring is disposed about the first connecting member. Preferably the helical spring acts on a plate disposed about the first connecting member.
[0034] Preferably the surgical table coupling mechanism further comprises a stop configured to abut with the engaging arm when in the second, locked, position.
[0035] Providing a stop may prevent the coupling mechanism from unwanted contact with the surgical table and may prevent damage to the coupling mechanism, components, or surgical table during the coupling process.
[0036] Preferably the engaging surface comprises a projection configured to engage with a corresponding recess of the component or surgical table. The projection may provide a physical indication to medical a professional that the surgical table and component are aligned correctly and that the component is therefore ready to be locked to the surgical table.
[0037] The projection may further provide a second anchor point, in addition to the coupling portion of the engaging arm, between the component and surgical table which may provide a more secure coupling between the component and surgical table as well as improving the load bearing capability of the coupling.
[0038] Preferably the engaging arm and coupling portion are integrally formed.
[0039] This may reduce the complexity of the mechanism and may improve ease of manufacturing.
[0040] Preferably the plate is configured to slide laterally with the first connecting member such that the plate can slide up to and abut the walls of the housing.
[0041] The plate being configured to slide laterally with the first connecting member may keep the spring disposed around the first connecting member. This may reduce the risk of the spring compressing in a non-uniform manner which in turn may reduce risk that the mechanism becomes locked up or components become damaged.
[0042] Preferably the engaging surface is provided by a portion of the housing.
[0043] Preferably the surgical table coupling mechanism further comprises one or more washers between the handle and the housing.BRIEF DESCRIPTION OF DRAWINGS
[0044] The disclosure will be further described, by way of example only, with reference to the accompanying drawings in which:
[0045] Figure 1a shows a side on view of an example surgical table coupling mechanism in an unlocked configuration with a side of the housing removed such that the mechanism is visible;
[0046] Figure 1 b shows an isometric view of the example surgical table coupling mechanism of Figure 1a;
[0047] Figure 1c shows a side on view of the example surgical table coupling mechanism of Figure 1a;
[0048] Figure 2a shows a side on view of an example surgical table coupling mechanism in a locked configuration with a side of the housing removed such that the mechanism is visible;
[0049] Figure 2b shows an isometric view of the example surgical table coupling mechanism of Figure 2a;
[0050] Figure 2c shows a side on view of the example surgical table coupling mechanism of Figure 2a;
[0051] Figure 3a shows a side on view of an example surgical table coupling mechanism, in an unlocked configuration, mounted to a component and ready to be coupled to a surgical table;
[0052] Figure 3b shows a side on view of the example surgical table coupling mechanism of Figure 3a, in a locked configuration, mounted to a component and coupled to a surgical table;
[0053] Figure 4 shows a side on view of an example surgical table mechanism in an unlocked configuration with a side of the housing removed such that the mechanism is visible;
[0054] Figure 5 shows a side on view of an example surgical table mechanism in a locked configuration with a side of the housing removed such that the mechanism is visible;
[0055] Figure 6 shows a side on view of an example surgical table coupling mechanism in an unlocked configuration with a side of the housing removed such that the mechanism is visible;
[0056] Figure 7 shows a side on view of an example surgical table mechanism in a locked configuration with a side of the housing removed such that the mechanism is visible; and
[0057] Figure 8 shows an isometric view of an example surgical table for coupling one or more components thereto.
[0058] DETAILED DESCRIPTION OF DRAWINGS
[0059] Figures 1a, 1 b, and 1c and 2a, 2b, and 2c show a surgical table coupling mechanism 100 for coupling components to a surgical table. The surgical table coupling mechanism 100 is shown in a first, unlocked, position in Figures 1a to 1c. The surgical table coupling mechanism 100 is shown in a second, unlocked, position in Figures 2a to 2c.
[0060] The coupling mechanism 100 comprises a housing 102, an engaging arm 104, and a handle mechanism. The handle mechanism comprises a connecting arm 106, a first connecting member 108, a second connecting member 110, and a handle 112.
[0061] The engaging arm 104 is pivotably connected to the housing 102 at a point between a first end 114 and a second end 116 of the engaging arm 104. In this specific embodiment the engaging arm 104 is pivotably connected to the housing 102 via a first smooth-shank bolt 117. As will be appreciated, the engaging arm 104 may be pivotably connected to the housing 102 via other suitable connectors, such as a pin, a rivet, or projection integrally formed with the housing. The engaging arm 104 comprises a coupling portion 118 at the first end 114 configured to engage with a corresponding portion of a surgical table. This is described in further detail below.
[0062] The connecting arm 106 is pivotably connected to the housing 102 at a point between a first 120 and second 122 end of the connecting arm 106. In this specific embodiment, the connecting arm 106 is pivotably coupled to the housing 102 via a second smooth-shank bolt 123. Again, as will be appreciated, the connecting arm 106 may be pivotably connected to the housing 102 via other suitable connectors, such as a pin, a rivet, or projection integrally formed with the housing. The connecting arm 106 is operably coupled to the second end 116 of the engaging arm 104 via the second connecting member 110. The second connecting member 110 is pivotably coupled to a first end 120 of the connecting arm 106 at a first end of the second connecting member 110 and to the second end 116 of the engaging arm 104 at a second end of the second connecting member 110. In this specific embodiment, the second connecting member 110 is pivotably coupled to the connecting arm 106 and the engaging arm 104 via pins 124a and 124b. As will be appreciated, the second connecting member 110 may be pivotably coupled to the connecting arm 108 and engaging arm 104 via other suitable connectors, such as a rivet, a bolt, or a projection integrally formed with one of the aforementioned components.
[0063] The first connecting member 108 is operably coupled at a first end of the first connecting member 108 to a second end of the connecting arm 106. In this specific embodiment, the first connecting member 108 is operably coupled to the connecting arm 106 via pin 125. As will be appreciated, the first connecting member 108 may be pivotably coupled to the connecting arm 108 via other suitable connectors, such as a rivet, a bolt, or a projection integrally formed with one of the aforementioned components.
[0064] In this specific embodiment, the handle 112 is formed as a lever and is pivotably coupled at a first end of the handle 112 to a second end of the first connecting member 108. Figure 1 b further shows the connection between the first connecting member 108 and the handle 112 as a pin joint 126. As will be appreciated, the handle 112 may be pivotably connected to the first connecting member 108 via other suitable connector mechanisms, such as a smooth-shanked bolt, or a rivet.
[0065] Figure 2b provides a detailed view of the first end of the handle 112, which is formed as a cammed surface 200. This cammed surface plays an important role in the operation of the coupling mechanism. During use, the cammed surface interacts with a surface of the housing, creating a mechanical advantage as the handle moves between positions.
[0066] As the handle 112 is moved from its first position (illustrated in Figures 1a to 1c) to its second position (shown in Figures 2a to 2c) , the cammed surface 200 acts against the housing surface. This interaction causes the distance between the contact point of the cammed surface on the housing and the pivot point 126 to increase. This increasing distance drives the linear motion of the first connecting member 108, causing it to slide from its first position to its second position.
[0067] The linear motion of the first connecting member 108 initiates a chain of movements within the mechanism. As the first connecting member 108 slides, it causes the connecting arm 106 to pivot about its fixed connection point 123 on the housing 102. To accommodate this pivoting motion while maintaining the linear sliding of the first connecting member 108, the housing 102 includes a hole that allows the first connecting member 108 to displace laterally as it slides linearly.
[0068] The lateral displacement of the first connecting member as it slides linearly is an important design feature that enables the smooth operation of the coupling mechanism. This combined linear and lateral movement allows the first connecting member to maintain its connection with both the handle and the connecting arm while accommodating the rotational motion of these components.
[0069] As the handle is operated, the first connecting member slides linearly along its longitudinal axis. However, due to the pivoting nature of the connecting arm and the fixed pivot point of the handle, a purely linear motion would create binding or stress in the mechanism. By allowing lateral displacement, the first connecting member can follow an arc-like path that matches the rotational movement of the connecting arm.
[0070] This lateral displacement is facilitated by the hole in the housing through which the first connecting member passes. The hole is designed to be slightly larger than the diameter of the first connecting member, providing sufficient clearance for this lateral movement.
[0071] The ability of the first connecting member to rotate about a fixed point, enabled by its lateral displacement, improves the overall functionality of the coupling mechanism. It allows for the translation of the handle's movement into the rotational motion of the connecting arm, which in turn actuates the engaging arm. This rotational capability ensures that forces are transmitted efficiently through the mechanism without creating undue stress on any single component.
[0072] Furthermore, this design feature contributes to the durability and longevity of the coupling mechanism. By allowing for natural movement paths of the components, it reduces wear and tear that could otherwise occur if the parts were constrained to purely linear motion. This is particularly important in a surgical setting where reliability and smooth operation are paramount.
[0073] The pivoting motion of the connecting arm 106 is then translated through the second connecting member 110. This transferred force causes the engaging arm 104 to pivot about its connection point 117, moving it from its first, unlocked position to its second, locked position.
[0074] The coupling mechanism 100 incorporates a resilient member, specifically a helical spring 128, which acts on a plate 130 disposed about the first connecting member 108. This spring serves two primary functions. Firstly, it biases the first connecting member 108 towards its first position, corresponding to the unlocked state of the engaging arm 104. Secondly, it plays a role in retaining the coupling mechanism 100 in the locked position.
[0075] When the handle 112 is in its second position, it sits in an over-centre position due to the cammed surface 200. The restorative force from the helical spring 128, which acts to bias the first connecting member 108 towards the first position, further secures the handle 112 in this locked position. This design feature acts as a safety mechanism, requiring a user to overcome at least the restorative force of the spring 128 to unlock the handle 112 from its second position, thus reducing the risk of unintentional unlocking during use.
[0076] The housing 102 also includes a projection 132, designed to engage with a second receptacle, or recess, of the surgical table, providing an additional point of connection and alignment. This projection 132 may serve as a fulcrum or pivot point, maintaining the position of the surgical component when in use.
[0077] When the coupling mechanism is engaged with the surgical table, the projection 132 may insert into the second receptacle, creating a fixed point of contact. This fixed point may act as a pivot around which the surgical component can be stabilized. As the weight of the surgical component is applied, it may create a moment about this pivot point. The coupling portion 118 of the engaging arm 104, when locked into the first receptacle of the surgical table, may counteract this moment, effectively distributing the load and maintaining the position of the surgical component.
[0078] In some aspects, the projection 132 and the coupling portion 118 may work in tandem to provide a two-point anchoring system. This system may enhance the stability of the attached surgical component by resisting both rotational and translational forces. The projection 132, acting as a fulcrum, may allow for minimal movement at the point of contact with the surgical table, while the coupling portion 118 may secure the component at a distance from this pivot point.
[0079] The fulcrum-like action of the projection 132 may also facilitate easier attachment and detachment of the surgical component. When attaching, the projection 132 may be used as a guide, allowing the user to pivot the component into place before engaging the coupling portion 118. When detaching, the projection 132 may serve as a stable point around which the component can be safely pivoted away from the surgical table after the coupling portion 118 is disengaged.
[0080] To protect the components and ensure smooth operation, two washers 134 are positioned about the first connecting member 108, adjacent to the handle 112. These washers sit between the housing 102 and the handle 112, allowing the handle to displace laterally along with the first connecting member 108 while minimizing the risk of damage to either the handle 112 or the housing 102.
[0081] To protect the components and ensure smooth operation, two washers 134 are positioned about the first connecting member 108, adjacent to the handle 112. These washers sit between the housing 102 and the handle 112, allowing the handle to displace laterally along with the first connecting member 108 while minimizing the risk of damage to either the handle 112 or the housing 102.
[0082] Figures 1c and 2c each show a side-on view of the example surgical table coupling mechanism 100, 200 of Figures 1a and 2a respectively.
[0083] Figures 3a and 3b show an example surgical table coupling mechanism 300 mounted to a component 302 and being coupled to a surgical table 308.
[0084] Figure 3a shows the coupling mechanism 300 in its first, unlocked, position. The component 302 is secured on a trolley 304. The trolley 304 has been lowered such that the projection 132 is engaged with the second receptacle 306 of the surgical table 308. This provides a physical identifier to the user that the component 302 and surgical table 308 are aligned correctly and can be coupled by the coupling mechanism 300. The user can then actuate the coupling mechanism 300 via the handle 112 by moving the handle 112 from its first, unlocked, position (Figure 3a) to its second, locked, position (Figure 3b) . This action rotates the coupling portion 118 of the engaging arm which engages with the first receptacle 310 of the surgical table 308.
[0085] Once the component 302 is locked to the surgical table 308, the trolley 304 supporting the component 302 is gradually removed. As this happens, the projection 132 becomes increasingly weight bearing and a rotational moment occurs about the projection 132 due to the weight of the component 302. The coupling portion 118 of the engaging arm 104, locked to the first receptacle 310 of the surgical table 308, acts as an anchor, resisting rotation of the component 302 and coupling mechanism 300 about the projection 132. These offsetting forces provide a more secure connection between the coupling mechanism 300 and the surgical table 308.
[0086] Figures 4 and 5 show an alternative embodiment of the surgical table coupling mechanism to that shown in Figures 1a to 2c. The alternative embodiments of the coupling mechanism 400 differs only in that the handle is a threaded handle 402 and is formed as a female thread and the first connecting member 404 comprises a corresponding male thread. Rotation of the threaded handle 402 causes it to move between its first position in which the engaging arm 104 is in a first, unlocked position (Figure 4) and its second position in which the engaging arm 104 is in a second, locked, position (Figure 5) .
[0087] The restorative force from the helical spring 128 biasing the first connecting member 404 towards its first position provides sufficient force on the thread such that instances of unintentional rotation of the threaded handle 402 and thus unintentional unlocking of the mechanism are reduced.
[0088] The use of a threaded handle 402 may provide finer control over the locking process, allowing for more precise adjustments and ensuring that the coupling mechanism 400 can be fully locked regardless of minor variations in component tolerances or positioning.
[0089] The use of a threaded handle 402 is preferred when gradual actuation of the mechanism is desired. The use of a threaded handle 402 may provide a handle with a reduced profile which may reduce instances of snagging. The use of a threaded handle 402 is also preferred when the coupling mechanism is desired to be operated in a more precise manner as the speed at which the engaging arm 104 will rotate from its first to its second position is reduced when compared to a lever handle of Figures 1a to 2c.
[0090] Figures 6 and 7 show an alternative embodiment of a surgical table coupling mechanism 600. The coupling mechanism 600 is shown in a first, unlocked position in figure 6. The coupling mechanism 600 is shown in a second, locked position in figure 7.
[0091] The coupling mechanism 600 comprises a housing 102, an engaging arm 602, and a handle mechanism. The handle mechanism of this particular embodiment comprises a connecting arm 604, a connecting member 606, a helical spring 128 acting on a plate 130 disposed about the connecting member 606, and a threaded handle 608. The engaging arm 602 is pivotably connected to the housing 102 at a point between a first end 610 and a second end 612 of the engaging arm 602. In this specific embodiment, the engaging arm 602 is pivotably connected to the housing 102 via a first smooth-shank bolt 105. As will be appreciated, the engaging arm 602 may be pivotably connected to the housing 102 via other suitable connectors, such as a pin, a rivet, or projection integrally formed with the housing. The engaging arm 602 comprises a coupling portion 614 at the first end 610 configured to engage with a first receptacle 310 of the surgical table 308.
[0092] The connecting arm 604 is pivotably connected to the housing 102 at a point between a first 616 and second 618 end of the connecting arm 106. In this specific embodiment, the connecting arm 604 is pivotably connected to the housing 102 via a second smooth-shank bolt 107. As will be appreciated, the connecting arm 604 may be pivotably connected to the housing 102 via other suitable connectors, such as a pin, a rivet, or projection integrally formed with the housing. The connecting arm 604 is operably coupled to the second end 612 of the engaging arm 602 via a first pin and slot coupling 620. The term "pin and slot coupling" refers to a mechanical connection between two components where a pin on one component engages with an elongated slot or groove on the other component. This coupling allows for relative linear and / or rotational movement between the components within the constraints of the slot geometry.
[0093] The first connecting member 606 is operably coupled at a first end of the first connecting member 606 to a second end of the connecting arm 604 via a second pin slot coupling 622.
[0094] In the unlocked position the pin sits within the slot. As the coupling mechanism 600 is moved from the unlocked towards the locked position, upon actuation of the threaded handle 608, the connecting member 606 will slide linearly causing a force to be exerted on the pin, connecting the connecting arm 604 and connecting member 606, from a first wall of the slot. The pin will then translate this force into a second wall, opposite the first wall, of the slot which will induce rotation of the connecting arm 604 about its connection point 107. As the connecting arm 604 rotates, the slot 622 will rotate and the pin will slide linearly within the slot 622 with respect to the linear motion of the connecting member 606 until it reaches an end of the slot.
[0095] As the connecting arm 604 rotates, the pin connecting the connecting arm 604 and engaging arm 602 will have a force exerted upon it from a first wall of the slot 620. The pin will then translate this force into a second wall, opposite the first wall, of the slot 620 which will induce rotation of the engaging arm 602 about its connection point 105 to the housing 102. As the engaging arm 602 rotates, the slot 620 will rotate and the pin will slide linearly within the slot 620. The pin will reach the end of the slot 620 when the engaging arm 602 is in its second position and the coupling mechanism 600 is in the second, locked position.
[0096] The remaining features of this embodiment of the coupling mechanism 600 function in line with those described for figures 1a to 2c, 4, and 5.
[0097] Figure 8 shows an isometric view of an example surgical table 800. In this specific embodiment, the surgical table 800 comprises, at a first end 802, a first connecting end 804 and a second connecting end 806. Each connecting end 804, 806 comprises a first receptacle 310 and a second receptacle 306 for receiving the engaging portion 118 and projection 132, of a surgical table coupling mechanism 100, respectively.
[0098] The surgical table 800 is designed to accommodate multiple coupling mechanisms, allowing for the attachment of various components as needed during medical procedures. The first connecting end 804 and second connecting end 806 are strategically positioned at the first end 802 of the table to provide optimal accessibility and stability for attached components.
[0099] The first receptacle 310 on each connecting end is specifically designed to engage with the coupling portion 118 of the surgical table coupling mechanism 100. This engagement forms the primary locking point between the component and the surgical table, ensuring a secure attachment that can withstand the forces and movements typically encountered during medical procedures.
[0100] The second receptacle 306, also present on each connecting end, is designed to receive the projection 132 of the coupling mechanism 100. This secondary point of engagement serves multiple purposes:
[0101] 1. Alignment: It helps guide the component into the correct position during attachment, reducing the risk of misalignment and potential damage to the coupling mechanism or the surgical table.
[0102] 2. Load distribution: By providing an additional point of contact, it helps distribute the weight and forces applied to the attached component more evenly across the surgical table structure.
[0103] 3. Stability enhancement: The engagement of both the coupling portion 118 and the projection 132 creates a more stable connection, reducing the likelihood of unwanted movement or rotation of the attached component during use.
[0104] The dual-receptacle design of each connecting end 804, 806 allows for a robust and versatile coupling system that can accommodate various components while maintaining the necessary stability and security required in a surgical environment. This design also facilitates the quick and efficient attachment and detachment of components, which can be important in time-sensitive medical situations.
Claims
1.A surgical table coupling mechanism (100) for coupling components to a surgical table (308) , the coupling mechanism comprising:an engaging surface (132) configured to engage with a corresponding portion of the surgical table;an engaging arm (104) pivotably connected at a point between a first end (114) and a second end (116) of the engaging arm, comprising a coupling portion (118) at the first end configured to engage with a corresponding portion of the surgical table; anda handle mechanism, operably coupled to the engaging arm, comprising:a connecting arm (106) pivotably connected at a point between a first end (120) and a second end (122) of the connecting arm and operably coupled at a first end of the connecting arm to the second end of the engaging arm;a first connecting member (108) operably coupled at a first end of the first connecting member to a second end of the connecting arm; anda handle (112) operably coupled to a second end of the first connecting member;wherein operation of the handle between a first position and a second position moves the engaging arm between a first, unlocked, position and a second, locked, position.2.A surgical table coupling mechanism according to claim 1, the connecting arm (106) being operably coupled to the second end (116) of the engaging arm (104) via a second connecting member (110) , the second connecting member being pivotably coupled to the connecting arm at a first end and the engaging arm at a second end.3.A surgical table coupling mechanism according to claim 1 or 2, wherein the first connecting member (108) is configured to slide linearly along its longitudinal axis upon operation of the handle (112) from the first position to the second position.4.A surgical table coupling mechanism according to claim 3, wherein the first connecting member (108) is further configured to displace laterally as the first connecting member slides linearly.5.A surgical table coupling mechanism according to claim 4, wherein the coupling mechanism (100) further comprises a housing (102) with a hole, the hole being sized to receive the first connecting member (108) and allow for the lateral displacement of the first connecting member as it slides linearly.6.A surgical table coupling mechanism according to any preceding claim, wherein the handle (112) is formed as a lever rotatably coupled to the first connecting member (108) and configured to move between the first position and the second position.7.A surgical table coupling mechanism according to claim 6, wherein the point at which the handle (112) pivots is offset from the coupling point (126) of the handle and the first connecting member (108) such that moving the handle from the first position to the second position linearly slides the first connecting member from its first position to its second position.8.A surgical table coupling mechanism according to claim 7, wherein a first end of the handle (112) is formed as a cammed surface (200) about which the handle pivots, wherein in the second position the restorative force, acting at the coupling point (126) between the handle and first connecting member (108) , retains the handle in the second position.9.A surgical table coupling mechanism according to claim 7 or 8, when dependent on claim 5, wherein when moving from the first position to the second position, the handle (112) is configured to slide laterally with the first connecting member (108) .10.A surgical table coupling mechanism according to any preceding claim, wherein the handle mechanism further comprises a resilient member (128) configured to bias the first connecting member (108) towards a first position in which the engaging arm (104) is in the unlocked position.11.A surgical table coupling mechanism according to any preceding claim, further comprising a housing (102) for encasing the handle mechanism and at least a portion of the engaging arm (104) wherein the housing comprises a hole for receiving the first connecting member (108) .12.A surgical table coupling mechanism according to claim 11, wherein the engaging arm (104) and connecting member (108) are pivotably connected to the housing (102) .13.A surgical table coupling mechanism according to any of claims 1 to 5, wherein the handle (112) comprises a female thread or a male thread, the first connecting member (108) comprising a corresponding male thread or female thread, wherein rotation of the handle causes it to move between its first position and second position.14.A surgical table component comprising at least one surgical table coupling mechanism (100) according to any of the preceding claims.15.A surgical table (800) comprising at least one surgical table coupling mechanism (100) according to any of the preceding claims.
Citation Information
Patent Citations
Surgery table attachment apparatus
EP3216439B1
Bedrail clamp
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