Head stabilisation device tensioning feature and method of use

Abstract

A head stabilization device that can be used to stabilize a patient's head during a medical procedure includes a modular design in which stabilization assemblies of various configurations can be interchanged at receiving portions along a frame. The device includes a tensioning feature that is positioned away from the stabilization assemblies but is still operable to increase or decrease the amount of force that the stabilization assemblies exert on the patient's head. The device includes a locking feature for the stabilization assemblies that has a rotatable member with one or more stabilization features connected thereto. The device includes an adjustment feature to adjust the spacing between frame members, with the adjustment feature providing a continuous range of adjustment rather than limited adjustment increments.

Description

[0001] priority

[0002] This application claims priority to U.S. Provisional Patent Application Serial No. 62 / 967,712, filed January 30, 2020, entitled "Radiolucent Head Stabilization Device and Method of Use," the disclosure of which is incorporated herein by reference. This application also claims priority to U.S. Provisional Patent Application Serial No. 63 / 091,572, filed October 14, 2020, entitled "Head Stabilization Device Tensioning Feature and Method of Use," the disclosure of which is incorporated herein by reference.

[0003] background

[0004] During certain medical procedures, it may be necessary or desirable to stabilize all or part of the patient to keep the patient or a part of the patient still. In some neurosurgical procedures, the stabilized part may include the patient's head and / or neck. Certain devices and methods can be used to stabilize a part of the patient. For example, a skull clamp is a type of head stabilization device that can be used to stabilize the patient's head and / or neck. Furthermore, it may be necessary or desirable to use various imaging modalities to obtain images of the patient before, during, and / or after the procedure.

[0005] Although various head stabilization devices and methods of use have been manufactured and used, it is believed that no one had manufactured or used the invention described herein before the inventors. Brief description of the attached diagram

[0007] Although the specification concludes by explicitly pointing out and clearly claiming the claims of the invention, it is believed that the invention will be better understood by the following description of certain examples taken in conjunction with the accompanying drawings, in which the same reference numerals denote the same elements.

[0008] Figure 1A A perspective view of an exemplary skull clamp is depicted.

[0009] Figure 1B Depicting Figure 1A Another perspective view of the skull clamp.

[0010] Figure 2A Depicting Figure 1AA partial perspective view of the release features of the skull clamp, with a portion shown as a virtual image to reveal the internal components.

[0011] Figure 2B Depicting Figure 1A A partial cross-sectional view of the skull clamp shows an exemplary release feature.

[0012] Figure 2C Depicting Figure 2B An enlarged partial cross-sectional view of the skull clamp, showing the relative positions of the arms of the skull clamp in the unloaded state.

[0013] Figure 3 Depicting what can be with Figure 1A A cross-sectional view of another exemplary arm used with a skull clamp and having another exemplary release feature.

[0014] Figure 4A A front view of an exemplary modular pin component is depicted.

[0015] Figure 4B Depicting Figure 4A A cross-sectional view.

[0016] Figure 5A A front view of another exemplary modular pin component, including an adapter, is depicted.

[0017] Figure 5B Depicting Figure 5A A cross-sectional view.

[0018] Figure 6A Depicting Figure 5A A front view of an exemplary modular pin assembly shown as a rocker arm assembly with two pins.

[0019] Figure 6B Depicting Figure 6A A cross-sectional view.

[0020] Figure 6C Depicting Figure 6A A perspective view of a component shown having an exemplary head pin and a removable cap for preventing accidental contact with the head pin.

[0021] Figure 7A A perspective view of an exemplary modular locking 2-pin rocker arm assembly is depicted.

[0022] Figure 7B Depicting Figure 7A Another perspective of the component.

[0023] Figure 7C Depicting Figure 7A Another perspective view of the components, showing the shell as a virtual image to reveal the internal parts.

[0024] Figure 7D Depicting Figure 7A A cross-sectional view of the component.

[0025] Figure 8A Depicting Figure 1A The head clamp arm shows the tension adjustment feature of the pin assembly.

[0026] Figure 8B Depicting what can be with Figure 8A An exemplary ruler that combines the arms and is used together.

[0027] Figure 8C Depicting Figure 8A A cross-sectional view of the arm.

[0028] Figure 8D Depicting Figure 8A A perspective view of the upper part of the arm.

[0029] Figure 8E Depicting Figure 8A Another cross-sectional view of the arm shows the keyed connection between certain components of the tensioning feature.

[0030] Figure 9 A perspective view of another exemplary skull clamp is depicted.

[0031] Figure 10 Depicting Figure 9 A side view of the arm of the head clamp, showing an alternative tension adjustment feature.

[0032] Figure 11A Depicting Figure 10 A cross-sectional view of the arm.

[0033] Figure 11B Depicting Figure 10 Another cross-sectional view of the arm shows the actuator in an actuation configuration.

[0034] Figure 11C Depicting Figure 10 Another cross-sectional view of the arm shows the features used for adjusting the tension adjustment. Figure 11B The actuator.

[0035] Figure 12 Depicting Figure 10 Side view of the upper part of the arm.

[0036] Figure 13 Depicting Figure 10 A perspective view of an exemplary force indicator for an arm.

[0037] Figure 14A perspective view of another exemplary skull clamp is depicted.

[0038] Figure 15 Depicting Figure 14 A side view of the arm of the head clamp shows an alternative tension adjustment feature.

[0039] Figure 16A Depicting Figure 15 A cross-sectional view of the arm.

[0040] Figure 16B Depicting Figure 15 Another cross-sectional view of the arm shows the actuator in an actuation configuration.

[0041] Figure 16C Depicting Figure 15 Another cross-sectional view of the arm shows the features used for adjusting the tension adjustment. Figure 16B The actuator.

[0042] Figure 17 Depicting Figure 15 Side view of the upper part of the arm.

[0043] Figure 18 Depicting Figure 15 A perspective view of an exemplary force indicator for an arm.

[0044] Figure 19 Depicting Figure 14 A perspective view of a cross-section of an exemplary stabilizing component of a head clamp, showing an exemplary rocker arm assembly that is rotated and fixed.

[0045] Figure 20 Depicting Figure 19 A perspective view of a cross-section of an exemplary stabilizing component, which shows an exemplary rocker arm assembly that is rotatably adjustable.

[0046] Figure 21 Depicting what can be with Figure 9 and Figure 14 A perspective view of a cross-section of another exemplary stabilizing component used in conjunction with the head clamp, the stabilizing component showing an exemplary rocker arm assembly that is rotatably adjustable.

[0047] Figure 22 Depicting Figure 14 A perspective view of the cross-section of an exemplary stabilizing component.

[0048] The accompanying drawings are not intended to be limiting in any way, and various embodiments of the invention can be conceived to be implemented in a variety of other ways, including those not necessarily depicted in the drawings. The drawings, which are incorporated in and form a part of this specification, illustrate several aspects of the invention and, together with this description, serve to explain the principles of the invention; however, it is to be understood that the invention is not limited to the explicit arrangement shown.

[0049] Detailed description

[0050] The following description of certain examples of the invention should not be construed as limiting the scope of the invention. Other examples, features, aspects, embodiments, and advantages of the invention will become apparent to those skilled in the art from the following description, which is by way of illustration and represents one of the best modes contemplated for carrying out the invention. As will be appreciated, the invention can have other different and obvious aspects, all of which do not depart from the invention. Therefore, the drawings and description should be considered illustrative in nature and not restrictive.

[0051] Figure 1A and Figure 1B An exemplary head stabilization or fixation device (10) is shown. Throughout this specification, the term "HFD" is used interchangeably with the terms "head stabilization device," "head fixation device," or "skull clip." In the embodiment shown herein, the HFD (10) has the shape or form of a skull clip. In this respect, the HFD (10) includes a frame (100). The frame (100) includes a first frame portion (102) and a second frame portion (104). The frame portions (102, 104) are adjustablely connected to adjust the spacing between them. The frame portions (102, 104) include corresponding receiving portions (106, 108) configured to receive stabilizing components. In the embodiment shown, the stabilizing component (200) is received by the receiving portion (106) of the frame portion (102). Furthermore, the stabilizing component (300) is received by the receiving portion (108) of the frame portion (104).

[0052] As in Figure 1B As can be seen more clearly in the image, the HFD (10) includes a frame adjustment feature (400) operable to adjust the relative spacing between the frame portions (102, 104). The frame adjustment feature (400) includes, for example, Figure 1B The visible actuator (402). The following will discuss... Figures 2A to 3 The additional components and operability of the frame adjustment feature (400) are discussed in detail.

[0053] HFD(10) is configured with a modular design, such that the receiving sections (106, 108) are configured to receive various stable components, rather than just stable components of a single type or design. For example, in Figure 1A and Figure 1B In the illustrated scheme, stabilizing component (200) and stabilizing component (300) can be switched with each other, such that stabilizing component (200) is connected to receiving portion (108), and similarly, stabilizing component (300) is connected to receiving portion (106). Regarding the various stabilizing components, the following will discuss... Figures 4A to 7D The modularity of the additional components and operability of the HFD(10) are discussed in detail.

[0054] Still refer to Figure 1A and Figure 1B The HFD (10) includes a tensioning feature (500) operable to adjust the amount of force applied to the patient by the stabilizing component. The tensioning feature (500) includes, for example... Figure 1A and Figure 1B The visible actuator (502). The following will discuss... Figures 8A to 8D The additional components and operability of the tensioning feature (500) are discussed in detail.

[0055] I. Exemplary Frame Adjustment Features

[0056] Now refer to Figures 2A to 2C The frame adjustment feature (400) is shown and will be described in further detail. Figure 2A As shown, the frame portion (102) includes an elongated shaft (110), which is received within the elongated shaft (112) of the frame portion (104). A locking feature (404) of the frame adjustment feature (400) extends within the elongated shaft (110). In this example, the locking feature (404) can be connected to the actuator (402) via a pin connection. Figure 1B and Figure 2B As shown, the actuator (402) can rotate about this pin connection. When the actuator (402) is as Figure 2B When the actuator (402) rotates upwards or vertically, it pulls the locking feature (404) toward the pin connection between the actuator (402) and the locking feature (404), or retracts the locking feature (404). Conversely, when the actuator (402) rotates in the opposite manner, it pushes the locking feature (404) away from its pin connection with the actuator (402).

[0057] In the illustrated scheme, the locking feature (404) includes a distal portion (406) having an inclined or angled outer surface (408). In this example, the outer surface (408) is curved in addition to being inclined or angled. In this way, in this example, the distal portion (406) includes a tapered or conical shape with the largest diameter at its farthest end. The distal portion (406) also includes a proximal shoulder (410). The elongated shaft (110) includes a hollow interior (114) through which the locking feature (404) extends. The hollow interior (114) defines a stop (116) near its distal end, which interacts with the shoulder (410) to prevent the locking feature (404) from being withdrawn from the elongated shaft (110) from the actuator side.

[0058] The elongated shaft (110) includes an opening (118) near its distal end. The opening (118) is configured to receive a locking feature (412) that can be contacted by the distal portion (406) of the locking feature (404). The locking feature (412) includes an inclined or angled surface (414) that contacts the surface (408) of the distal portion (406) of the locking feature (404). In this way, as the locking feature (404) moves toward the side where the actuator (402) is located, the interacting inclined surfaces (408, 414) cause the locking feature (412) to impact the elongated shaft (112) of the frame portion (104). This contact is sufficient to create a frictional fit between the components, thereby preventing the frame portions (102, 104) from moving apart from each other. It should also be noted that, in this example, although the locking feature (412) prevents the frame portions (102, 104) from moving apart when it is fully engaged or in contact with the shaft (112), the frame portions (102, 104) can move toward each other, thereby further closing the frame (100).

[0059] When it is desired to open the frame (100), the above process is essentially reversed. Specifically, the actuator (402) rotates downward away from its vertical orientation relative to the locking feature (404). This causes the locking feature (404) to move in the direction of the frame portion (104), which allows the distal portion (406) to disengage from the locking feature (412), such that the locking feature (412) is thus disengaged from the shaft (112) to a degree that overcomes any frictional forces and allows the frame portions (102, 104) to be adjusted to a more open arrangement as needed.

[0060] In the manner described above, the frame adjustment feature (400) is configured such that the frame portions (102, 104) can be adjusted relative to each other, and then, once the desired position or arrangement has been reached, is fixed to prevent the frame portions (102, 104) from opening. Furthermore, the increments for adjusting the relative positions of the frame portions (102, 104) are infinitely variable, wherein this locking configuration has a frictional fit between the components, rather than a mechanical fit of a complementary structure like meshing teeth (where the adjustment increments are limited by the dimensions of the mechanical engagement structure). In other words, in the example shown, the configuration of the locking feature (412), the distal portion (406), and the shaft (112) enables a stepless fit. In this way, the adjustment range of the frame portions (102, 104) is infinitely variable compared to devices that use interlocking engagement features or stepped features to control and adjust the adjustment increments of the frame portions (102, 104). Of course, in some other embodiments, if an interference fit or locking is desired, the segment features or engagement features, or multiple segment features or multiple engagement features, can be included together with the locking features (404, 412). Other such modifications will be apparent to those skilled in the art in light of the teachings herein.

[0061] like Figure 2B and Figure 2C Most clearly visible, the elongated shaft (110) includes a groove (120) along the bottom region. An alignment feature (416) is configured to extend through the elongated shaft (112) and be received within the groove (120) to maintain the alignment of the elongated shafts (110, 112), thereby preventing the elongated shafts (110, 112) from changing their relative rotational position when adjusting the spacing of the frame portions (102, 104).

[0062] Figure 3An alternative frame portion (102') is shown that can be used in place of the frame portion (102) with the HFD (10). The frame portion (102') is similar to the frame portion (102) except for having a different actuator configuration. The frame portion (102') includes an actuator (402') connected to a locking feature (404). The actuator (402') includes a pressable portion that approaches or is close to the stabilizing assembly and along the upright portion of the frame portion (102'). In this example, the actuator (402') is spring-biased such that the locking feature (404) is biased away from the frame portion (104), thereby causing the distal portion (406) to contact the locking feature (412) to induce a frictional lock or frictional engagement between the frame portions (102', 104). The press actuator (402') overcomes the spring bias and pushes the locking feature (404) toward the frame portion (104), thereby reducing or eliminating friction locking or friction engagement and allowing the gap between the frame portions (102', 104) to be opened or increased.

[0063] II. Exemplary Modular Stable Components

[0064] Figure 4A and Figure 4B A stabilizing assembly (200) is shown. The stabilizing assembly (200) includes a housing (202). The housing (202) includes a bore (204) configured to receive a pin holder (12) having a pin (14) configured to contact a patient. The housing (202) includes a proximal incision (206) configured to receive a pin (122) extending through the receiving portion (106, 108) depending on which frame portion (102, 104) the stabilizing assembly (200) is mounted on. A spherical member (208) in contact with a resilient member (210) is located within the housing (202). The pin (212), or a combination of the pin (212) and the body, is located below the resilient member (210).

[0065] When the stabilizing assembly (200) is installed, the housing (202) slides or translates proximally to engage within the receiving portions (106, 108). The housing (202) and the receiving portions (106, 108) include complementary engagement features, such as complementary dovetail features, that guide the stabilizing assembly (200) into place and hold the housing (202) in a specific orientation. The pin (122) aligns with the notch (206) and contacts the spherical member (208), which then presses downward against the resilient member (210). This allows displacement of the spherical member (208) such that the pin (122) can fully settle within the notch (206). Once fully seated, the pin (122) disengages from the spherical member (208), which then returns to the rear of the pin (122) based on the bias of the resilient member (210). This achieves a locking effect that keeps the stabilizing component (200) in place relative to the receiving portions (106, 108).

[0066] Figures 5A to 6C A stabilizing component (600) is shown. The stabilizing component (600) is similar to the stabilizing component (200) except that it includes a housing (602) having a hole (604) configured to receive an adapter (614). In one example, as... Figure 5B As shown, the adapter (614) is configured to receive the pin (14), which is configured to contact the patient. In another example, as... Figure 6A and Figure 6B As shown, the adapter (614) is configured to receive the rocker arm assembly (616).

[0067] To hold the adapter (614) in the proper position within the hole (604), the stabilizing assembly (600) includes a spherical member (618) and a resilient member (620). The adapter (614) includes an annular groove (622) configured to interlock with the spherical member (618) once the adapter (614) is fully seated within the hole (604). When the adapter (614) is inserted, the spherical member (618) is pushed against the resilient member (620), and then, when fully seated, the annular groove (622) aligns above the spherical member (618), such that a bias from the resilient member (620) causes the spherical member (618) to return to its position, subsequently engaging the annular groove (622). In this configuration, the adapter (614) is fixed in place without translational movement but still allows rotation, wherein the spherical member (618) remains engaged with the annular groove (622).

[0068] In another embodiment of the stabilizing component (600), multiple adapters (614) can be used with the housing (602), wherein, for example, adapter (614) is configured for use with a single pin (14), while another adapter is configured for use with the rocker arm assembly (616). In this way, the modular design allows for the interchangeability of stabilizing feature types by interchangeable adapters associated with specific stabilizing feature types. Similarly, in other embodiments similar to the above, the same adapter (614) can be configured for use with multiple stabilizing feature types, such that the modular design allows for the interchangeability of stabilizing feature types by interchangeable stabilizing features themselves while keeping the adapter (614) identical.

[0069] Figures 7A to 7D A stabilizing assembly (300) is depicted, configured to have a locking rocker arm assembly (316). The stabilizing assembly (300) includes a housing (302), actuators (324, 326), ball joints (208, 618), resilient joints (210, 620), a pin (212), and a hole (304) configured to receive a portion of the locking rocker arm assembly (316). The stabilizing assembly (300) is connected to the receiving portion (106, 108) in the same manner as the stabilizing assembly (200) described above. Figure 7A As can be seen, the housing (302) includes a dovetail feature in the same manner as the stabilizing components (200, 600).

[0070] like Figure 7C and Figure 7D As shown, the locking rocker arm assembly (316) includes a body (328) having a pair of extensions (330) that are pin-connected to receive the rocker arm (332). The body (328) also includes an adapter (314) similar to the adapter (614) but also including locking features that securely lock the rotational position of the rocker arm assembly (316). For example, the adapter (314) includes an annular groove (622) for engaging with a spherical member (618). However, the adapter (314) also includes a toothed member (334) configured to selectively engage with a shaft (336) having a toothed end configured to engage with the teeth of the toothed member (334). This engagement between the shaft (336) and the toothed member (334) locks the rotational position of the rocker arm (332) relative to the housing (302) and the frame (100).

[0071] When the actuators (324, 326) are not pressed, or in a neutral state with the rocker arm (332) locked, the surface (327) of the cut portion in the actuator (326) contacts the surface (337) of the cut portion in the shaft (336), such that the shaft (336) remains locked into engagement with the toothed member (334). To adjust the rotational position of the rocker arm (332), pressing the actuator (326) overcomes the bias from the spring (340) and causes the surface (327) to disengage from the surface (337), thereby further causing the cut portion of the actuator (326) to align undisturbedly with the cut portion of the shaft (336). This undisturbed alignment allows the spring (338) and its natural bias to drive the release actuator (324) and the connected shaft (336) upward away from the toothed member (334) to disengage from the toothed feature, thereby allowing rotational adjustment. Once the desired rotational adjustment is achieved, the release actuator (324) is pressed down to overcome the bias of the spring (338) and align the cutout portion of the shaft (336) with the cutout portion of the release actuator (326). Furthermore, the bias spring (340) on the actuator (326) translates the actuator (326), causing the surface (327) to re-contact the surface (337) of the shaft (336). In this way, the toothed portion of the shaft (336) engages the toothed member (334) to lock the rotational position of the rocker arm (332).

[0072] III. Exemplary Torsion Bar Tensioning Features

[0073] Figures 8A to 8D A tensioning feature (500) is depicted, which is used to adjust the amount of force applied to the patient by the connected stabilizing components during use of the HFD (10). The tensioning feature (500) includes an actuator (502) having an end portion that extends through a hole in a frame portion (104) and is threadedly connected to a body (504). The body (504) includes a hole for receiving a rod (506) that connects an elongated member (508) to the body (504). The rod (506) is fastened to the body (504) and, in at least one location where the rod (506) extends through the body (504), the rod (506) also includes a polygonal profile. In this way, the rod (506) is bonded to the body (504), so that the rod (506) cannot rotate relative to the body (504). The elongated member (508) is connected to the rod (506), as Figure 8C As shown. In other locations where the rod (506) extends through the elongated member (508), the rod (506) has a polygonal profile such that the elongated member (508) is bonded to the rod (506), so that the elongated member (508) cannot rotate relative to the rod (506).

[0074] At the other end, the elongated member (508) includes a pair of extensions (510) with a space between them. Within this space, a receiving portion (108) is positioned and further pinned to the pair of extensions (510). Holes within the receiving portion (108) pinned to the pair of extensions (510) are as follows: Figure 8C and Figure 8D As can be seen, it is elongated. This elongated configuration allows the receiving part (108) to make some lateral movements.

[0075] To adjust the tension feature (500), the actuator (502) rotates, thereby translating the body (504). The direction of translation depends on the direction of rotation of the actuator (502). As the body (504) moves toward the frame portion (102), the tension increases, or in other words, the force applied to the patient increases. This movement causes the rod (506) to move in the same direction. When the elongated member (508) is connected to the rod (506), the elongated member (508) also moves in the same direction. At the upper end of the elongated member (508), the elongated member (508) is pinned to the receiving portion (108) as mentioned above. When the HFD (10) is under load (where the patient's head is positioned between and in contact with the stabilizing assembly and its corresponding stabilizing feature), this pinning connection fixes or restricts the range of motion that the elongated member (508) can undergo. Therefore, under these conditions, there is a torsional force or torque on the rod (506). In this way, the rod (506) functions similarly to a torsion bar. Therefore, as the body (504) and the rod (506) move toward the frame portion (102), the tension within the rod (506) and the elongated member (508) increases, causing the elongated member (508) to exert a greater force on the receiving portion (108). In this way, the elongated member (508) acts as a tension-adjustable tensioning member. When the patient's head is positioned within the HFD (10), the receiving portion (108) remains laterally fixed, thus the increased tension causes a greater force to be applied to the patient's head. Reducing the force applied to the patient's head can be accomplished by rotating the actuator (502) in the opposite direction, causing the body (504) and the rod (506) to translate toward the frame portion (104).

[0076] The elongated member (508) also includes an actuator (512). The actuator (512) is configured to pre-tension a feature. In this way, before the patient pin is engaged within the HFD (10), the actuator (512) can be pressed to move the two frame parts (102, 104) together until the associated stabilizing feature contacts the patient's head. Once this contact is achieved, the actuator (512) is released, and further tension adjustment can be made using the tensioning feature (500) as described above. By way of example only and not limitation, in some cases, the pre-tensioning feature of the actuator (512) can provide a force of about 50 Newtons to about 150 Newtons on the patient's head.

[0077] Reference Figure 8B In some embodiments, the tensioning feature (500) includes a force indicator or scale (514). This scale can be configured to correlate the tension within the rod (506) and elongated member (508) based on the movement of the body (504) with the resultant force applied to the stabilizing component (300). In one example, the scale (514) can be included on the outward-facing surface of the rod (506). Other ways of indicating tension and / or force will be apparent to those skilled in the art in light of the teachings herein.

[0078] IV. An exemplary alternative head clip with a curved beam tensioning feature

[0079] Figure 9 An exemplary alternative HFD (1010) substantially similar to the HFD (10) described above is shown. For example, like the HFD (10) described above, the HFD (1010) of this example has the shape or form of a cranial clamp. Therefore, the HFD (1010) of this example includes a frame (1100) similar to the frame (100) described above. The frame (1100) includes a first frame portion (1102) and a second frame portion (1104). The frame portions (1102, 1104) are adjustablely connected to adjust the spacing between them. The frame portions (1102, 1104) include corresponding receiving portions (1106, 1108) configured to receive a stabilizing component. In the illustrated scheme, the stabilizing component (1200) is received by the receiving portion (1106) of the frame portion (1102). Furthermore, the stabilizing component (1300) is received by the receiving portion (1108) of the frame portion (1104).

[0080] Similar to the HFD (10) described above, the HFD (1010) of this example also includes a frame adjustment feature operable to adjust the relative spacing between the frame portions (1102, 1104). In some embodiments, the frame adjustment feature may be the same as or similar to the frame adjustment feature (400) described above. In this example, the HFD (1010) includes a frame adjustment feature (1400) comprising a pair of engaging members (not shown), each engaging member having one or more teeth (not shown). In such an embodiment, the teeth of one engaging member are configured to selectively engage with the teeth of the other engaging member. An actuation feature (1103) is configured, when actuated, to move or displace at least one engaging member, causing the teeth of each engaging member to disengage. When the engaging members disengage, the spacing of the frame assembly can be adjusted to a larger or smaller dimension. When the connecting members are joined, in some embodiments the spacing of the frame components is fixed, while in others the spacing of the frame components can still be adjusted to a smaller spacing, but not to a larger spacing. Using such a frame adjustment feature, one or more safety features (not shown) can be incorporated such that the actuation feature (1103) is prevented from operating unless one or more safety features are actuated first. In other examples, given the teachings herein, those skilled in the art will understand that various alternative frame adjustment features can be readily incorporated into HFD (1010) or HFD (10).

[0081] Similar to the HFD (10) described above, the HFD (1010) of this example is configured with a modular design, such that the receiving portions (1106, 1108) are configured to receive various stabilizing components, rather than only accommodating stabilizing components of a single type or design. Similarly, as described above, stabilizing components (1200) and (1300) can be interchanged, such that stabilizing component (1200) is connected to the receiving portion (1108), and similarly, stabilizing component (1300) is connected to the receiving portion (1106). In this way, the modularity and interchangeability of the stabilizing components (1200, 1300) and HFD (1010) operate in the same or similar manner as those described above regarding stabilizing components (200, 300) and HFD (10).

[0082] Figure 10 The second frame portion (1104) is shown in more detail. The second frame portion (1104) of this example includes a tensioning feature (1500). The tensioning feature (1500) of this example is used to adjust the amount of force applied to the patient by the HFD (1010) during use. Figure 11AAs shown, the tensioning feature (1500) of this example includes an actuator (1502) and an elongated member (1508). The actuator (1502) is generally configured to adjust the position of the elongated member (1508), thereby adjusting the amount of force applied to the patient by the stabilizing component (1300) connected during use of the HFD (1010). As shown, in some examples, the tensioning features (1500) are spaced apart, with the actuators (1502) positioned at a distance away from the stabilizing component (1300). In other words, the actuators (1502) of the tensioning feature (1500) may be positioned along the base or lateral portion of the frame (1100) rather than the upright portion of the frame (1100). Meanwhile, other portions of the tensioning feature (1500) that contact the stabilizing component (1300) to adjust the pin contact force are positioned at a distance away from the actuators (1502). In some examples, the spacing can be approximately the same as the distance represented by a typical patient head size, so that the actuator (1502) does not overlap with the lateral area around the patient's head when positioned within the HFD (1010).

[0083] Figure 11A The configuration of the actuator (1502) is shown in more detail. The actuator (1502) of this example is generally configured to interact with the body (1504) to selectively engage and disengage rotation of the body (1504) via the actuator (1502). As will be described in more detail below, the body (1504) is configured to engage a portion of the elongated member (1508) or other components associated with the elongated member (1508) to drive translation of the elongated member (1508) by rotation of the body (1504) using the actuator (1502).

[0084] Suitable selective rotational engagement between the actuator (1502) and the body (1504) can be accomplished in various ways. By way of example only, the actuator (1502) of this example includes a handle (1510) having an elongated rod (1512) extending from the handle (1510) into the interior of a second frame portion (1104). The end of the elongated rod (1512) opposite to the handle (1510) includes a keying end (1516). As will be described in more detail below, the keying end (1516) is generally configured to engage a portion of the body (1504) to provide rotation of the body (1504) after the actuator (1502) has been translated to a predetermined position.

[0085] For engagement with the actuator (1502), the body (1504) includes a hollow interior (1520) configured to receive the elongated rod (1512) of the actuator (1502). The hollow interior (1520) defines a cylindrical portion (1522) oriented toward opposite ends of the body (1504) and a mating portion (1524). The cylindrical portion (1522) defines a generally cylindrical shape, allowing the mating end (1516) to rotate freely within the cylindrical portion (1522). Simultaneously, the mating portion (1524) defines a shape that generally corresponds to the shape of the mating end (1516). Therefore, the mating portion (1524) is generally configured to receive the mating end (1516), thereby forming a mating relationship to allow rotational motion to be transmitted from the elongated rod (1512) to the body (1504).

[0086] As mentioned above, the actuator (1502) is configured to rotate the body (1504) when the actuator (1502) is in a predetermined longitudinal position relative to the body (1504). Therefore, and as will be described in more detail below, the actuator (1502) can move between one or more positions to selectively transition between engagement and disengagement with the body (1504) for rotation of the body (1504). To hold the actuator (1502) in a given position relative to the body (1504), the elongated rod (1512) of the actuator includes one or more stop features (1514) extending into the surface of the elongated rod (1512). In this example, the elongated rod (1512) includes three semi-circular recesses positioned at three locations along the longitudinal axis of the elongated rod (1512). Each stop feature (1514) is configured to engage a spring-loaded bearing, ball, or other resilient feature, thereby releasably holding the elongated rod (1512) in a predetermined position along the longitudinal axis of the elongated rod (1512). As will be described in more detail below, this configuration generally allows the actuator (1502) to be selectively locked into a selected position among a plurality of predetermined positions corresponding to the operation of the actuator (1502).

[0087] The body (1504) defines a generally cylindrical shape. The exterior of the body (1504) includes external threads. As will be described in more detail below, these external threads can be configured to drive the elongated member (1508) or other components associated with the elongated member (1508). The body (1504) is fixed in position within the second frame portion (1104). In particular, the internal geometry of the second frame portion (1104) allows the body (1504) to be fixed in a single lateral and longitudinal position. However, despite this fixation, the body (1504) is still configured to rotate within the second frame portion (1104).

[0088] exist Figure 11A The elongated member (1508) is shown in more detail below. The elongated member (1508) of this example is generally configured to move to adjust the amount of force applied to the patient by the connected stabilizing component (1300) during use of the HFD (1010). It can be seen that the elongated member (1508) extends upward from the body (1504) toward the stabilizing component (1300). As will be described in more detail below, at least a portion of the elongated member (1508) contacts the connected stabilizing component (1300) to transfer force from the body (1504) to the stabilizing component (1300).

[0089] The elongated member (1508) is associated with the indicator member (1542). Specifically, the lower portion of the indicator member (1542) is fastened to the lower portion of the elongated member (1508), such that the lower portions of the indicator member (1542) and the lower portions of the elongated member (1508) are securely fixed together. This fixing can be achieved by any suitable means. For example, in this example, one or more pins are used to achieve this fixing.

[0090] The indicator component (1542) extends upward within the second frame portion (1104) independently of the elongated component (1508). In other words, the indicator component (1542) is connected to the elongated component (1508) only at its lower portion. The remaining portions of the indicator component (1542) are not connected to the elongated component (1508), allowing the upper portions of the indicator component (1542) and the upper portions of the elongated component (1508) to move freely relative to each other. As will be described in more detail below, this configuration is generally configured to allow the indicator component (1542) to function as a scale or force indicator of the amount of force applied to the patient's head by the stabilizing component (1300).

[0091] The elongated member (1508) includes a threaded opening (1530) at its end opposite to the stabilizing component (1300). The threaded opening (1530) is generally configured to receive the body (1504) therein and engage the external threads of the body (1504). As described above, the body (1504) is in a substantially fixed position within the second frame portion (1104). Thus, by receiving the body (1504) through the threaded opening (1530), the bottom portion of the elongated member (1508) is generally also fixed in a fixed position by the body (1504). Furthermore, and as will be described in more detail below, the elongated member (1508) is configured to translate within the second frame portion (1104) by rotation of the body (1504) and engagement between the threads of the threaded opening (1530) and the threads of the body (1504). In other words, the body (1540) is configured to resemble a lead screw to mechanically rest against a portion of the elongated member (1508), while also utilizing the rotational input from the actuator (1502) to provide translation of the elongated member (1508).

[0092] To adjust the tension feature (1500), such as Figure 11B As shown, the actuator (1502) is first pulled away from the second frame portion (1104). This pulling motion causes the actuator (1502) to transition from an initial retracted configuration to an actuated configuration. Although not shown, it should be understood that in some examples, the actuator (1502) may be configured to have an intermediate configuration. In the intermediate configuration, the actuator (1502) can rotate freely without affecting the tensioning feature (1500). By way of example only, such a configuration may be desirable to allow an operator to adjust the operating position of the actuator (1502) before adjusting the tensioning feature (1500).

[0093] Once the actuator (1502) is positioned Figure 11B In the actuation configuration shown, the actuator (1502) is positioned to adjust the tension feature (1500). For example... Figure 11C As shown, the actuator (1502) can rotate when in an actuated configuration. This rotation causes a corresponding rotation of the body (1504). As the body (1504) rotates, the threads on the outside of the body (1504) engage the threads on the inside of the threaded opening (1530) of the elongated member (1508), thereby causing the elongated member (1508) to translate along the longitudinal axis of the body (1504).

[0094] In some examples, one or more openings or windows within the second frame section (1104) can be used to visualize the translation of the elongated member (1508). For example, refer again... Figure 9 and Figure 10The second frame portion (1104) includes an opening (1105) configured to allow an operator to visualize the movement of the elongated member (1508). In this example, the opening (1105) is configured as an elongated slot that receives a pin protruding from the elongated member (1508). Thus, the pin of the elongated member (1508) can advance along the length defined by the opening (1105) to demonstrate the advance of the elongated member (1508) along its entire path of movement. Although the opening (1105) in this example is configured as an elongated slot, it should be understood that various alternative configurations may be used, for example, on elliptical or square windows, transparent sections, and / or the like, in other examples.

[0095] The direction of translation of the elongated member (1508) depends on the direction of rotation of the actuator (1502). When the body (1504) rotates to move the elongated member (1508) toward the frame portion (1102), the tension increases, or in other words, the force applied to the patient increases. Conversely, when the body (1504) rotates in the opposite direction via the actuator (1502) to move the elongated member (1508) away from the frame portion (1102), the tension decreases.

[0096] like Figure 12 As shown, the end of the elongated member (1508) opposite the body (1504) includes a pair of extensions (1509) with a space between them. Within this space, the stabilizing assembly (1300) is positioned and further pin-connected to the pair of extensions (1509). Therefore, by moving the elongated member (1508) toward the first frame portion (1102), the elongated member (1508) applies pressure to the stabilizing assembly (1300) in the direction toward the frame portion (1102). In contrast, movement of the elongated member (1508) away from the first frame portion (1102) reduces the pressure applied to the stabilizing assembly (1300). Figure 12 The diagram also shows one of a pair of slots (1302) contained in the stabilizing component (1300). The slot (1302) is located on each side of the stabilizing component (1300) and receives the protruding upper portion of the second frame portion (1104), such that the stabilizing component (1300) can laterally translate or slide relative to the frame portion (1104) in response to a force applied by the elongated member (1508).

[0097] exist Figure 12The diagram also shows an interface (1304) located on the top portion of the stabilizing component (1300) and oriented upwards or away from the frame portion (1104) in the illustration. The interface (1304) is configured as a star-shaped feature in this example, but may be configured differently in other configurations. Furthermore, various accessories for use in medical procedures such as neurosurgery can be optionally attached to the interface (1304).

[0098] Returning to the discussion of the tensioning feature (1500), the elongated member (1508) in this example is configured to bend or flex relative to the body (1504). Specifically, the patient's head can be positioned between the frame portions (1102, 1104), with pins of the stabilizing components (1200, 1300) contacting the patient's head. With the patient in this pinned position, as the elongated member (1508) moves toward the first frame portion (1102) as described above to apply force to the stabilizing component (1300), a counterforce is applied to the elongated member (1508) based on the patient's head being in the pinned position. As a result, the elongated member (1508) is configured to bend or flex in the portion of the elongated member (1508) extending away from the body (1504). Therefore, this bending or flexing of the elongated member (1508) provides a spring force or bending force that is directed toward the stabilizing component (1300) and ultimately toward the pin that contacts the patient, so that the elongated member (1508) provides a way to adjust the pin engagement force for the patient.

[0099] Reference Figure 13 The tensioning feature (1500) in this example also includes a force indicator or scale (1540) associated with the elongated member (1508) and the indicator member (1542). The scale (1540) is generally configured to relate to the tension within the elongated member (1508) based on the force applied to the stabilizing component (1300). Generally, the scale (1540) is configured to indicate the tension within the elongated member (1508) associated with the pin force applied to the patient using the relative movement between the elongated member (1508) and the indicator member (1542). It can be seen that the scale (1540) is formed by a plurality of horizontally extending color-coded bars (1544) disposed on the surface of the upper portion of the indicator member (1542).

[0100] Additionally, the elongated member (1508) includes an inclined protrusion (1546) adjacent to the strip (1544) of the indicator member (1542). The inclined protrusion (1546) is generally angled to project away from the first frame portion (1102). Thus, when the elongated member (1508) bends or flexes, a corresponding number of strips (1544) are covered or exposed due to the relative movement between the upper portion of the elongated member (1508) and the upper portion of the indicator member (1542), depending on the specific amount of bending or flexing of the elongated member (1508). As understood from the teachings herein, greater bending or flexing of the elongated member (1508) corresponds to greater tension on the elongated member (1508), and therefore to greater pinning force on the patient. Therefore, for example, when a relatively high tension is applied to the elongated member (1508), the upper part of the elongated member (1508) can move a greater distance relative to the indicator member (1542), thereby covering a greater number of strips (1544) with the inclined protrusions (1546).

[0101] As mentioned above, the bars (1544) are color-coded to indicate the amount of tension within the elongated member (1508). In this example, the specific color coding used is a gradient between orange or yellow (low tension) and red (high tension). In other examples, it will be apparent to those skilled in the art, given the teachings herein, that other suitable color coding can be used. Although this example is shown as using discrete bars of various colors, in other examples, a continuous gradient without separate bars can be used. Furthermore, or alternatively, other non-color-related coding, such as numbers or symbols, can be used. Additionally, in some embodiments, color coding may not be used; instead, the number of visible bars can be used to indicate force.

[0102] V. An exemplary alternative skull clamp with a curved beam and a movable frame tensioning feature.

[0103] Figure 14An exemplary alternative HFD (2010) is shown, which is substantially similar to the HFDs (10, 1010) described above, except where otherwise explicitly stated herein. For example, like the HFD (10) described above, the HFD (2010) of this example has the shape or form of a cranial clamp. Therefore, the HFD (2010) of this example includes a frame (2100) similar to the frame (100) described above. The frame (2100) includes a first frame portion (2102) and a second frame portion (2104). The frame portions (2102, 2104) are adjustablely connected to adjust the spacing between them. The frame portions (2102, 2104) include corresponding receiving portions (2106, 2108) configured to receive a stabilizing component. In the illustrated scheme, the stabilizing component (2200) is received by the receiving portion (2106) of the frame portion (2102). In addition, the stabilizing component (2300) is received by the receiving portion (2108) of the frame portion (2104).

[0104] Similar to the HFDs (10, 1010) described above, the HFD (2010) of this example also includes a frame adjustment feature operable to adjust the relative spacing between frame portions (2102, 2104). In some embodiments, the frame adjustment feature may be the same as or similar to the frame adjustment feature (400) or frame adjustment feature (1400) described above. In other examples, given the teachings herein, those skilled in the art will recognize that various alternative frame adjustment features can therefore be readily incorporated into the HFD (2010) or HFD (10, 1010).

[0105] Similar to the HFD (10) described above, the HFD (2010) of this example is configured to have a modular design, such that the receiving portions (2106, 2108) are configured to receive various stabilizing components, rather than only accommodating stabilizing components of a single type or design. Similarly, as described above, stabilizing components (2200) and (2300) can be interchanged, such that stabilizing component (2200) is connected to the receiving portion (2108), and similarly, stabilizing component (2300) is connected to the receiving portion (2106). In this way, the modularity and interchangeability of the stabilizing components (2200, 2300) and the HFD (2010) operate in the same or similar manner as those of the stabilizing components (200, 300) and the HFD (10) described above.

[0106] Figure 15The second frame portion (2104) is shown in more detail. Similar to the second frame portions (104, 1104) described above, the second frame portion (2104) of this example includes a tensioning feature (2500). The tensioning feature (2500) of this example is used to adjust the amount of force applied to the patient by the stabilizing component (2300) connected during use of the HFD (2010). The tensioning feature (2500) of this example includes an actuator (2502) and an elongated member (2508). The actuator (2502) is generally configured to adjust the position of the elongated member (2508), thereby adjusting the amount of force applied to the patient by the stabilizing component (2300) connected during use of the HFD (2010). However, unlike the actuator (1502) discussed above, the actuator (2502) of this example adjusts the position of the elongated member (2508) by adjusting the positions of the second frame portion (2104) and the elongated member (2508) rather than just adjusting the position of the elongated member (2508).

[0107] Figure 16A The configuration of the actuator (2502) is shown in more detail. The actuator (2502) of this example is generally configured to interact with the body (2504) to selectively engage and disengage rotation of the body (2504) via the actuator (2502). As will be described in more detail below, the body (2504) is configured to engage a portion of the second frame portion (2104) or other components associated with the second frame portion (2104) to drive the second frame portion (2104) to translate together with the elongated member (2508) by rotating the body (2504) using the actuator (2502).

[0108] Suitable selective rotational engagement between the actuator (2502) and the body (2504) can be accomplished in various ways. By way of example only, the actuator (2502) of this example includes a handle (2510) having an elongated rod (2512) extending from the handle (2510) into the interior of a second frame portion (2104). The end of the elongated rod (2512) opposite to the handle (2510) includes a keying end (2516). As will be described in more detail below, the keying end (2516) is generally configured to engage a portion of the body (2504) to provide rotation of the body (2504) after the actuator (2502) has been translated to a predetermined position.

[0109] For engagement with the actuator (2502), the body (2504) includes a hollow interior (2520) configured to receive the elongated rod (2512) of the actuator (2502). The hollow interior (2520) defines a cylindrical portion (2522) oriented toward opposite ends of the body (2504) and a mating portion (2524). The cylindrical portion (2522) defines a generally cylindrical shape, allowing the mating end (2516) to rotate freely within the cylindrical portion (2522). In contrast, the mating portion (2524) defines a shape that generally corresponds to the shape of the mating end (2516). Therefore, the mating portion (2524) is generally configured to receive the mating end (2516), thereby forming a mating relationship to allow rotational motion to be transmitted from the elongated rod (2512) to the body (2504).

[0110] As described above, the actuator (2502) is configured to rotate the body (2504) when the actuator (2502) is in a predetermined longitudinal position relative to the body (2504). Therefore, and as will be described in more detail below, the actuator (2502) can move between one or more positions to selectively transition between engagement and disengagement with the body (2504) for rotation of the body (2504). To hold the actuator (2502) in a given position relative to the body (2504), the elongated rod (2512) of the actuator includes one or more stop features (2514) extending into the surface of the elongated rod (2512). In this example, the elongated rod (2512) includes three semi-circular recesses positioned at three locations along the longitudinal axis of the elongated rod (2512). Each stop feature (2514) is configured to engage a spring-loaded bearing, ball, or other resilient feature, thereby releasably holding the elongated rod (2512) in a predetermined position along the longitudinal axis of the elongated rod (2512). As will be described in more detail below, this configuration generally allows the actuator (2502) to be selectively locked into a selected position among a plurality of predetermined positions corresponding to the operation of the actuator (2502).

[0111] The body (2504) defines a generally cylindrical shape, and the exterior of the body (2504) includes external threads. As will be described in more detail below, these external threads can be configured to drive the second frame portion (2104) and / or other components associated with the second frame portion (2104). The body (2504) is secured in place within a portion of the frame (2100). In particular, the internal geometry of the lower portion of the frame (2100) allows the body (2504) to be secured in a single lateral and longitudinal position. However, despite this securing, the body (2504) is still configured to rotate relative to the second frame portion (2106).

[0112] exist Figure 16A The elongated member (2508) is shown in more detail below. The elongated member (2508) of this example is generally configured to move to adjust the amount of force applied to the patient by the connected stabilizing component (2300) during use of the HFD (2010). It can be seen that the elongated member (2508) extends upward from the body (2504) toward the stabilizing component (2300). As will be described in more detail below, at least a portion of the elongated member (2508) contacts the connected stabilizing component (2300) to transfer force from the body (2504) to the stabilizing component (2300).

[0113] The elongated member (2508) is generally pinned to a portion of the second frame portion (2104). Specifically, one or more pins secure the lower portion of the elongated member (2508) to the lower portion of the second frame portion (2104). Therefore, it should be understood that movement of the second frame portion (2104) causes a corresponding movement of at least the lower portion of the elongated member (2508), as will be discussed in more detail below.

[0114] The second frame portion (2104) includes a threaded hole (2530) near the lower portion of the second frame portion (2104). The threaded hole (2530) is generally configured to receive the body (2504) therein and engage the external threads of the body (2504). As described above, the body (2504) is in a substantially fixed position relative to the lower portion of the frame (2100). Therefore, by receiving the body (2504) through the threaded hole (2530), the second frame portion (2104) is generally fixed in a fixed position by the body (2504). Since the lower portion of the elongated member (2508) is fixed to the second frame portion (2104), the lower portion of the elongated member (2508) is also fixed in a fixed position by the body (2504). Furthermore, and as will be described in more detail below, the elongated member (2508) is configured to translate via the second frame portion (2104) using the rotation of the body (2504) and the engagement between the thread of the threaded hole (2530) and the thread of the body (2504). In other words, the body (2504) is configured to resemble a lead screw to mechanically rest against a portion of the second frame portion (2104) and the elongated member (2508), while also using a rotational input from the actuator (2502) to provide translation between the second frame portion (2104) and the elongated member (2508).

[0115] To adjust the tension feature (2500), such as Figure 16BAs shown, the actuator (2502) is first pulled away from the second frame portion (2104). This pulling motion causes the actuator (2502) to transition from an initial retracted configuration to an actuated configuration. It should be understood that in some examples, the actuator (2502) may be configured to have an intermediate configuration. In the intermediate configuration, the actuator (2502) can rotate freely without affecting the tensioning feature (2500). By way of example only, this configuration may be desirable to allow an operator to adjust the operating position of the actuator (2502) before adjusting the tensioning feature (2500).

[0116] Once the actuator (2502) is positioned Figure 16B In the actuation configuration shown, the actuator (2502) is positioned to adjust the tension feature (2500). For example... Figure 16C As shown, the actuator (2502) can rotate when in an actuated configuration. This rotation causes a corresponding rotation of the body (2504). As the body (2504) rotates, the threads on the exterior of the body (2504) engage the threads on the interior of the threaded hole (2530) of the second frame portion (2104), thereby causing the second frame portion (2104) to translate along the longitudinal axis of the body (2504). Simultaneously, the translation of the second frame portion (2104) causes at least the bottom portion of the elongated member (2508) to translate accordingly along the longitudinal axis of the body (2504).

[0117] In some examples, one or more openings or windows within the second frame section (2104) can be used to visualize the translation of the second frame section (2104) and the elongated member (2508). For example, refer again... Figure 14 and Figure 15 The second frame portion (2104) includes an opening (2105) configured to allow an operator to visualize the movement of the second frame portion (2104) and the elongated member (2508). In this example, the opening (2105) is configured as an elongated slot that receives a pin protruding from the lower portion of the frame (2100). Thus, the pin of the lower portion of the frame (2100) can advance along the length defined by the opening (2105) to demonstrate the advance of the second frame portion (2104) and the elongated member (2508) along their entire path of movement. Although the opening (2105) is configured as an elongated slot in this example, it should be understood that various alternative configurations may be used, for example, on elliptical or square windows, transparent sections, and / or the like, in other examples.

[0118] The translational direction of the second frame portion (2104) and the elongated member (2508) depends on the rotational direction of the actuator (2502). When the body (2504) rotates to move the second frame portion (2104) and the elongated member (2508) toward the first frame portion (2102), the tension increases, or in other words, the force applied to the patient increases. Conversely, when the body (2504) rotates in the opposite direction via the actuator (2502) to move the second frame portion (2104) and the elongated member (2508) away from the first frame portion (2102), the tension decreases.

[0119] like Figure 17 As shown, the end of the elongated member (2508) opposite the body (2504) includes a pair of extensions (2509) with a space between them. Within this space, the stabilizing assembly (2300) is positioned and further pin-connected to the pair of extensions (2509). Therefore, by moving the elongated member (2508) toward the first frame portion (2102), the elongated member (2508) applies pressure to the stabilizing assembly (2300) in the direction toward the frame portion (2102). In contrast, movement of the elongated member (2508) away from the first frame portion (2102) reduces the pressure applied to the stabilizing assembly (2300). Figure 17 The diagram also shows one of a pair of slots (2302) contained in the stabilizing component (2300). The slot (2302) is located on each side of the stabilizing component (2300) and receives a protruding upper portion of the second frame portion (2104) such that the second frame portion (2104) can be laterally translated or slid relative to the stabilizing component (2300).

[0120] In this example, the elongated member (2508) is configured to bend or flex relative to the body (2504). Specifically, the patient's head can be positioned between the frame portions (2102, 2104), with pins of the stabilizing components (2200, 2300) contacting the patient's head. With the patient in this pinned position, as the elongated member (2508) moves toward the first frame portion (2102) as described above to apply a force to the stabilizing component (2300), a counterforce is applied to the elongated member (2508) based on the patient's head being in the pinned position. As a result, the elongated member (2508) is configured to bend or flex in the portion of the elongated member (2508) extending away from the body (2504). Therefore, this bending or flexing of the elongated member (2508) provides a spring force or bending force directed toward the stabilizing component (2300) and ultimately toward the pin that contacts the patient, so that the elongated member (2508) provides a way to adjust the pin engagement force for the patient.

[0121] Reference Figure 18 The tensioning feature (2500) in this example also includes a force indicator or scale (2540) associated with the elongated member (2508). The scale (2540) is generally configured to relate to the tension within the elongated member (2508) based on the force applied to the stabilizing component (2300). Generally, the scale (2540) is configured to indicate the tension within the elongated member (2508) related to the pin force applied to the patient using the relative movement between the elongated member (2508) and the upper portion of the second frame portion (2104). It can be seen that the scale (2540) is formed by a plurality of horizontally extending color-coded bars (2544) disposed on the surface of the upper portion of the second frame portion (2104).

[0122] Furthermore, the elongated member (2508) includes an inclined protrusion (2546) adjacent to a strip (2544) of the second frame portion (2104). The inclined protrusion (2546) is generally angled to project away from the first frame portion (2102). Thus, when the elongated member (2508) bends or flexes, the inclined protrusion (2546) moves to intersect, point toward, or otherwise align with a given strip (2544) of the strips (2544), depending on the specific amount of bending or deflection of the elongated member (2508) caused by the relative movement between the upper portion of the elongated member (2508) and the upper portion of the second frame portion (2104). As understood from the teachings herein, greater bending or deflection of the elongated member (2508) corresponds to greater tension on the elongated member (2508), and therefore to greater pinning force on the patient. Therefore, for example, when a relatively high tension is applied to the elongated member (2508), the upper portion of the elongated member (2508) can move a greater distance relative to the second frame portion (2104), thereby moving the inclined protrusion (2546) to align with the higher strip (2544) on the scale defined by the strip (2544).

[0123] As mentioned above, the strip (2544) is color-coded to indicate the amount of tension within the elongated member (2508). In this example, the specific color coding used is a gradient between orange or yellow (low tension) and red (high tension). In other examples, it will be apparent to those skilled in the art, given the teachings herein, that other suitable color coding can be used. Although this example is shown as using discrete strips of various colors, in other examples, a continuous gradient without separate strips can be used. Furthermore, or alternatively, other non-color-related coding, such as numbers or symbols, can be used. Additionally, in some embodiments, color coding may not be used; instead, multiple visible strips can be used to indicate force.

[0124] VI. Exemplary rocker arm locking feature

[0125] Another feature of HFD (1010, 2010) involves the locking feature of the stabilizing components (1300, 2300). Figure 19 and Figure 20 A perspective cross-sectional view of the stabilizing assembly (2300) is shown. The locking features and operability of the stabilizing assembly (1300) are the same as those of the stabilizing assembly (2300). For simplicity, the view will be shown relative to the stabilizing assembly (2300). Figure 19 and Figure 20 This description is used to describe the locking characteristics, but it should be understood that the same description applies to the stable component (1300).

[0126] Now refer to Figure 19 and Figure 20 The locking feature allows selective rotational adjustment of the rocker arm assembly (2316) relative to the corresponding housing (2301) of the stabilizing assembly (2300). The stabilizing assembly (2300) includes an actuator (2303) comprising a key or pressable member (2305), a pin (2307), a spring (2309), a spring seat (2311), an insert member (2313), and a lever (2315). The rocker arm assembly (2316) includes a retainer (2317) pin-connected to the rocker arm (2332). The stabilizing assembly (2300) also includes a locking member (2319).

[0127] exist Figure 19 In the depicted state, the rocker arm assembly (2316) is in a locked state or position. For example, the retainer (2317) has a gear or toothed ring (2321), which in this example is formed inside the retainer (2317). The toothed ring (2321) has a plurality of teeth radially oriented about a longitudinal axis passing through the inner bore of the retainer (2317). In other words, in this example, the plurality of teeth constituting the toothed ring (2321) extend circumferentially around the surface of the retainer (2317). To establish the locked state, the toothed ring (2321) engages with the gear or toothed ring (2323) of the locking member (2319). In this state of engagement of the toothed rings (2321, 2323), the rocker arm assembly (2316) is rotatably fixed relative to the housing (2301).

[0128] Figure 20 The rocker arm assembly (2316) is depicted in an adjustable or unlocked state or position. In this state, the toothed rings (2321, 2323) are separated from each other, such that the corresponding teeth of the toothed rings (2321, 2323) are not engaged. More specifically, as shown... Figure 20As shown, the retainer (2317) defines a longitudinal axis (LA), and the toothed ring (2323) of the locking member (2319) is offset from the toothed ring (2321) of the retainer (2317) toward the rocker arm (2332). This offset can be similarly described as the toothed rings (2321, 2323) being in different translational positions along the longitudinal axis (LA). Figure 20 As shown, when the toothed rings (2321, 2323) are not engaged, the rocker arm assembly (2316) can be rotatably adjusted relative to the housing (2301).

[0129] To move the stabilizing component (2300) between a locked and unlocked state or a fixed and adjustable state, and vice versa, the user presses the key (2305), thereby pressing the spring (2309) against the seat (2311). When the key (2305) is pressed, the key (2305) can translate relative to the fixed embedded member (2313). When the key (2305) is not pressed, as... Figure 22 As shown, the key (2305) includes a protruding feature (2306) that engages with a groove (2314) of the insert member (2313), such that the key (2305) is translatably locked relative to the insert member (2313). For example, as Figure 19 and Figure 20 As shown, the key (2305) is lifted or not pressed, such that the key (2305) is fixed in a translational manner relative to the embedded member (2313). To place the key (2305) in... Figure 19 and Figure 20 At any of the locations shown, the embedded member (2313) includes two or more slots (2314). The key (2305) may also include multiple protruding features (2306), such as Figure 22 As shown.

[0130] Continue in Figure 19 The fixed state shown is Figure 20 The example shown illustrates movement between adjustable states. After pressing the key (2305), the key (2305) moves forward or translates toward the rocker arm (2332). Moving along with the key (2305) are the pin (2307), spring (2309), seat (2311), locking member (2319), and lever (2315). Figure 19 and Figure 20 As the comparison shows, the lever (2315) has rotational movement about its pin connection with the housing (2301), while the key (2305), pin (2307), spring (2309), seat (2311), and locking member (2319) have translational movement. With the toothed ring (2323) of the key (2305) and locking member (2319) now moving towards the rocker arm (2332), as... Figure 20As shown, pressing the key (2305) stops, and the key (2305) returns to its neutral position based on the bias from the spring (2309). As mentioned above, the protruding member on the key (2305) then engages with the corresponding slot of the insert member (2313) to fix the translational position of the key (2305) and its associated components.

[0131] As described above, the stabilizing component (2300) is configured such that the actuator (2303) can move between a first position and a second position, wherein in the first position, the rocker arm assembly (2316) is rotatably fixed, and in the second position, the rocker arm assembly (2316) is rotatably adjustable. Furthermore, in this configuration, based on the engagement of the key (2305) with the embedded member (2313), the user does not need to hold the key (2305) in a pressed or translated position to adjust or fix the rocker arm assembly (2316). This configuration allows the user to set the stabilizing component (2300) to the desired position and then lock the rotational position of the rocker arm assembly (2316). Additionally, as described above, the action for moving the stabilizing component between the adjustable rocker arm assembly state and the fixed rocker arm assembly state is achieved through the translational movement of the radially oriented toothed rings (2321, 2323).

[0132] Given the teachings of this document, it will be apparent to those skilled in the art that other ways of configuring the stabilizing component (2300) or other stabilizing components to adjust the rotational position of the rocker arm assembly will be apparent. This is merely an example. Figure 21 Another exemplary stabilizing assembly (3300) is shown that can be used with the HFD (1010, 2010) instead of stabilizing assemblies (1300, 2300). The stabilizing assembly (3300) includes an actuator (3303) having a key (3305), a pin (3307), a spring (3309), a seat (3311), an insert member (3313), and a lever (3315). The stabilizing assembly also includes a locking member (3319) with a toothed ring (3323), while the rocker arm assembly (3316) includes a retainer (3317) with a toothed ring (3321). These components of the stabilizing assembly (3300) can be used in conjunction with the above-described... Figure 19 and Figure 20 The stabilizing component (2300) shown operates in the same manner as its counterpart.

[0133] However, the difference between the stabilizing assembly (3300) and the stabilizing assembly (2300) is that, for the stabilizing assembly (3300), the key (3305) advances toward the rocker arm (3332) to move the toothed ring (3323) of the locking member (3319) to engage with the toothed ring (3321) of the retainer (3317) to fix the rocker arm assembly (3316) relative to the housing (3301). This is the opposite of the movement or direction of movement described above for the stabilizing assembly (2300). Similarly, for the stabilizing assembly (3300), in order to adjust the rocker arm assembly (3316), the locking member (3319) retracts from or translates away from the rocker arm (3332) to disengage the toothed areas (3321, 3323), as... Figure 21 As shown.

[0134] Furthermore, given the teachings of this article, it will be apparent to those skilled in the art that other ways of modifying the stabilizing components (1300, 2300, 3300) to achieve the locking feature for selectively adjusting the rotational position of the associated rocker arm assembly will be apparent.

[0135] VII. Exemplary Combinations

[0136] The following examples illustrate various non-exhaustive ways in which the teachings of this document can be combined or applied. It should be understood that the following examples are not intended to limit the scope of any claim that may appear at any time in this application or in subsequent documents thereof. No waiver of rights is intended. The following examples are provided merely for illustrative purposes. It is conceivable that the various teachings of this document may be arranged and applied in a variety of other ways. It is also conceivable that some variations may omit certain features mentioned in the examples below. Therefore, no aspect or feature mentioned below should be considered critical unless explicitly stated later by the inventor or a successor with an interest in the inventor. If any claim set forth in this application or in subsequent documents related to this application includes additional features beyond those mentioned below, such additional features shall not be presumed to have been added for any reason relating to patentability.

[0137] Example 1

[0138] A device for stabilizing a patient includes: (a) a stabilizing component configured to receive a stabilizing feature configured to contact a patient; and (b) a tensioning feature configured to receive the stabilizing component at a first position, the tensioning feature further including a second position spaced apart from the first position such that the second position is spaced apart from the stabilizing component, the tensioning feature including an actuator positioned at the second position such that the actuator is spaced apart from the stabilizing component, the tensioning feature including an elongated member extending from the actuator to the stabilizing component, the actuator being configured to cause movement of the elongated member relative to the stabilizing component when the stabilizing feature contacts the patient to adjust the amount of force applied by the stabilizing component to the patient.

[0139] Example 2

[0140] According to the device described in Example 1, at least a portion of the elongated member is configured to bend in response to an increase in the force applied to the stabilizing component.

[0141] Example 3

[0142] According to any one or more of Examples 1 to 2, the actuator has a body, the actuator is configured to transmit rotational motion to the body, the body has a cylindrical portion including a thread, the thread being configured to engage the thread of an elongated member to move the elongated member relative to the body.

[0143] Example 4

[0144] The apparatus according to any one or more of Examples 1 to 2 further includes a frame assembly having a first frame portion and a second frame portion, an actuator having a body configured to transmit rotational motion to the body having a cylindrical portion including threads configured to engage threads of the second frame portion to move the second frame portion and the elongated member relative to the first frame portion.

[0145] Example 5

[0146] According to any one or more of Examples 1 to 4, the actuator further includes a lever and a locking feature configured to releasably hold the lever in a selected position among a plurality of predetermined positions relative to the body.

[0147] Example 6

[0148] The device according to any one or more of Examples 1 to 5 further includes a force indication feature configured to indicate the amount of force applied to the patient by the stabilizing component.

[0149] Example 7

[0150] According to the device described in Example 6, the force indication feature includes a plurality of indicators, wherein the elongated member can move relative to the plurality of indicators to indicate the amount of force applied to the patient by the stabilizing component.

[0151] Example 8

[0152] The apparatus according to any one or more of Examples 1 to 3 further includes a frame assembly comprising a first frame portion and a second frame portion, the first frame portion and the second frame portion being selectively movable relative to each other to adjust the space between the first frame portion and the second frame portion.

[0153] Example 9

[0154] According to the device described in Example 8, the tensioning feature is configured to adjust the amount of force applied to the patient by the stabilizing component while maintaining the relative positions of the first frame portion and the second frame portion such that the space between the first frame portion and the second frame portion remains unchanged.

[0155] Example 10

[0156] According to the device described in Example 8, the tensioning feature is configured to adjust the amount of force applied to the patient by the stabilizing component, while the relative positions of the first frame portion and the second frame portion change as the amount of force applied to the patient by the stabilizing component is adjusted, thereby changing the space between the first frame portion and the second frame portion.

[0157] Example 11

[0158] The apparatus according to any one or more of Examples 1 to 2, wherein the tensioning feature includes a body, wherein the actuator is configured to move the elongated member relative to the body to transmit force to the elongated member, and wherein the elongated member is configured to transmit at least a portion of the force to the stabilizing component to increase the amount of force applied to the patient by the stabilizing component.

[0159] Example 12

[0160] The apparatus according to any one or more of Examples 1 to 3 further includes: a frame assembly comprising a first frame portion and a second frame portion; and an adjustment feature configured to adjust the relative position of the first frame portion and the second frame portion to overcome the force applied to the stabilizing assembly by the tensioning feature.

[0161] Example 13

[0162] The apparatus according to any one or more of Examples 1 to 12, wherein the tensioning feature includes a torsion bar, wherein the torque on the torsion bar transmits a force to the elongated member, and wherein the elongated member transmits at least a portion of the force to the stabilizing component to increase the amount of force applied to the patient by the stabilizing component.

[0163] Example 14

[0164] The apparatus according to any one or more of Examples 1 to 13, wherein the tensioning feature is configured to apply a certain amount of force to the stabilizing component by a torsional action.

[0165] Example 15

[0166] The apparatus according to any one or more of Examples 1 to 14, wherein the actuator is configured to provide pretension to the stabilizing component.

[0167] Example 16

[0168] The apparatus according to any one or more of Examples 1 to 15, wherein the apparatus includes two or more stabilizing components.

[0169] Example 17

[0170] The apparatus according to any one or more of Examples 4 to 10 and Examples 12 to 16, wherein the frame component includes a U-shaped form.

[0171] Example 18

[0172] The apparatus according to any one or more of Examples 1 to 17, wherein a stabilizing component defines a proximal end and a distal end, wherein the distal end is configured to receive a stabilizing feature, and the stabilizing component further defines an axis extending from the proximal end to the distal end, wherein an actuator positioned at a second location is positioned along an axis different from the axis defined by the stabilizing component.

[0173] Example 19

[0174] A device configured for use with a patient stabilization device, wherein the device regulates the amount of force applied to a patient by the stabilization device, the device comprising: (a) a first body having a first end and a second end, wherein the first end is configured to be connected to a stabilization component of the stabilization device; and (b) an actuator that may be directly or indirectly connected to the first body, wherein the actuator is configured to cause a torque to be applied to the first body, wherein an increase in torque on the first body causes an increase in tension within the first body, wherein the first body applies an increased force to the stabilization component in response to the increase in tension within the first body.

[0175] Example 20

[0176] According to the device described in Example 19, the first body is rigid.

[0177] Example 21

[0178] The apparatus according to any one or more of Examples 19 to 20, wherein the dimensions of the first body remain constant when torque is applied to the first body and when the tension within the first body increases.

[0179] Example 22

[0180] The apparatus according to any one or more of Examples 19 to 21 further includes a second body that is bonded to the first body at a second end, thereby preventing the first body and the second body from rotating relative to each other.

[0181] Example 23

[0182] According to the apparatus described in Example 22, the second body and the first body are oriented substantially perpendicular to each other.

[0183] Example 24

[0184] The apparatus according to any one or more of Examples 22 to 23, wherein the second body is rigid.

[0185] Example 25

[0186] The apparatus according to any one or more of Examples 22 to 24, wherein the actuator may be directly or indirectly connected to the second body, wherein the actuator is configured to cause torque to be applied to the first body by applying torque to the second body and transmitting it to the first body, thereby increasing the tension within the first body.

[0187] Example 26

[0188] According to any one or more of Examples 22 to 25, the dimensions of the second body remain constant when a torque is applied to the second body, thereby causing an increase in tension within the first body.

[0189] Example 27

[0190] A device for stabilizing a patient includes: (a) a frame having a receiving portion and a pin extending laterally through the receiving portion; and (b) a stabilizing assembly having a stabilizing feature configured to contact the patient, the stabilizing assembly being configured for selective reception within the receiving portion, the stabilizing assembly having a housing including: (i) a groove located in a proximal side of the housing, wherein the groove is configured to receive the pin extending laterally through the receiving portion of the frame; and (ii) a first retaining feature movable relative to the housing from a first position to a second position, wherein in the first position, the first retaining feature allows the pin of the frame to be fully seated within the groove of the housing such that the stabilizing assembly is fully seated within the receiving portion of the frame, wherein in the second position, the first retaining feature secures the stabilizing assembly within the receiving portion.

[0191] Example 28

[0192] According to the device of Example 27, the housing includes a hole located in the distal side of the housing, wherein the hole is configured to selectively retain stabilizing features.

[0193] Example 29

[0194] The apparatus according to any one or more of Examples 27 to 28, wherein the housing includes a first resilient feature that can be connected to a first retaining feature, wherein the first resilient feature has a bias that holds the first retaining feature in a second position within the housing, wherein the first retaining feature can be moved to a first position by compressing the first resilient feature.

[0195] Example 30

[0196] The apparatus according to any one or more of Examples 27 to 29 includes an adjustment feature configured to set the width of the frame.

[0197] Example 31

[0198] The apparatus according to any one or more of Examples 27 to 29, wherein the housing includes a hole located in a distal side of the housing, wherein the apparatus further includes an adapter selectively retained within the hole of the housing, wherein the adapter is configured to selectively retain a stabilizing feature.

[0199] Example 32

[0200] According to the apparatus of Example 31, the adapter includes engagement features.

[0201] Example 33

[0202] According to any one or more of Examples 31 to 32, the housing includes a second retaining feature that is movable relative to the housing, wherein the second retaining feature can be configured to align and engage with an engagement feature of the adapter, wherein the engagement between the second retaining feature and the engagement feature of the adapter secures the adapter within a hole in the housing.

[0203] Example 34

[0204] The apparatus according to any one or more of Examples 31 to 33, wherein securing the adapter within a hole in the housing prevents translational movement of the adapter within the hole in the housing, but allows rotational movement of the adapter relative to the housing.

[0205] Example 35

[0206] The apparatus according to any one or more of Examples 32 to 34, wherein the engagement feature of the adapter includes an annular groove, and the second retaining feature includes a circular member configured to engage within the annular groove.

[0207] Example 36

[0208] The apparatus according to any one or more of Examples 33 to 35, wherein the housing includes a second resilient feature that can be connected to a second retaining feature, wherein the second resilient feature has a bias that holds the second retaining feature in an extended position within the housing, the bias holding the second retaining feature engaged with an engagement feature of the adapter, wherein the second retaining feature can be moved to disengage from the engagement feature of the adapter by compressing the second resilient feature.

[0209] Example 37

[0210] An apparatus for stabilizing a patient's head, the apparatus comprising: (a) a frame including a receiving portion; and (b) a stabilizing component configured for receiving within the receiving portion, wherein the stabilizing component is configured to hold one or more stabilizing features configured to contact the patient's head, wherein the stabilizing component includes: (i) a selectively rotatable member; (ii) an actuator configured to longitudinally translate to move the actuator between a first position and a second position, wherein in the first position the selectively rotatable member is rotatably adjustable, and wherein in the second position the selectively rotatable member is rotatably fixed, wherein the actuator includes a locking member having a first engagement feature; and (iii) a retainer connectable to the selectively rotatable member, wherein the retainer includes a second engagement feature configured to selectively engage with the first engagement feature, wherein the first and second engagement features are longitudinally translatable relative to each other to selectively engage and disengage the first and second engagement features, thereby adjusting or fixing the rotational position of the rotatable member.

[0211] Example 38

[0212] According to the apparatus of Example 37, the actuator includes a pressable member configured to move between a third position and a fourth position, wherein the pressable member is biased to the third position, and wherein, in order to move the actuator between a first position and a second position, the pressable member moves from the third position to the fourth position to overcome the bias.

[0213] Example 39

[0214] According to any one or more of Examples 37 to 38, when the actuator moves from a first position to a second position, the locking member having a first engagement feature moves longitudinally away from the rotatable member.

[0215] Example 40

[0216] According to any one or more of Examples 37 to 38, when the actuator moves from a first position to a second position, the locking member having a first engagement feature moves longitudinally toward the rotatable member.

[0217] Example 41

[0218] According to the apparatus of any one or more of Examples 37 to 40, the first engagement feature and the second engagement feature each include a toothed ring configuration.

[0219] Example 42

[0220] According to any one or more of the apparatuses described in Examples 38 to 41, when the actuator is in the third position, the rotatable member can be held in a rotatably adjustable state or a fixed state.

[0221] Example 43

[0222] According to the device of Example 37, the actuator includes a pressable member and an inserting member, the pressable member being selectively engaged with the inserting member, wherein the engagement between the pressable member and the inserting member holds the rotatable member in a selected state, either a rotatably adjustable state or a fixed state, depending on the longitudinal position of the actuator.

[0223] Example 44

[0224] The apparatus according to any one or more of Examples 37 to 43 allows a user to set the stabilizing component to a desired rotational position without the user maintaining contact with the actuator while making rotational adjustments.

[0225] Example 45

[0226] According to the apparatus of Example 37, the pressable member is biased to a third position and configured to move between a third position and a fourth position, wherein in the third position the pressable member engages with the embedded member, and in the fourth position the pressable member disengages from the embedded member.

[0227] Example 46

[0228] A stabilization assembly for use with a patient stabilization device, wherein the stabilization assembly includes: (a) a selectively rotatable member configured to hold one or more stabilizing features configured to contact a patient; and (b) a pair of engaging features configured to longitudinally translate relative to each other from a first position to a second position, wherein in the first position the pair of engaging features are engaged and the selectively rotatable member is fixed, and wherein in the second position the pair of engaging features are disengaged, and the selectively rotatable member is rotatably adjustable.

[0229] Example 47

[0230] A device for stabilizing a patient includes: (a) a frame having a first receiving portion; (b) a first stabilizing component configured to receive one or more stabilizing features, wherein the first stabilizing component is further configured to be connected to the first receiving portion of the frame, wherein the first stabilizing component includes: (i) a housing connected to the first receiving portion of the frame; (ii) an arm connectable to the housing and configured to receive one or more stabilizing features, wherein the arm is configured to take a first state in which the arm is rotatable relative to the housing, and wherein the arm is configured to further take a second state in which the arm is not rotatable relative to the housing; (iii) a first actuator configured to place the arm in the second state; and (iv) a second actuator configured to place the arm in the first state.

[0231] Example 48

[0232] According to the device described in Example 47, a first actuator may be connected to a housing and includes a first engagement feature configured to contact a second engagement feature associated with the arm to fix the rotational position of the arm.

[0233] Example 49

[0234] According to the device described in Example 48, the second actuator can be connected to the housing and biased to keep the first engagement feature of the first actuator in contact with the second engagement feature, wherein overcoming the bias of the second actuator allows the first engagement feature to disengage from the second engagement feature to allow rotational adjustment of the arm.

[0235] Example 50

[0236] According to any one or more of Examples 48 to 49, the first actuator is biased to disengage the first engagement feature from the second engagement feature associated with the arm.

[0237] Example 51

[0238] According to the apparatus of Example 50, overcoming the bias of the first actuator causes the first engagement feature to engage or contact with the second engagement feature, and also allows the bias of the second actuator to maintain such engagement between the first engagement feature and the second engagement feature.

[0239] Example 52

[0240] The apparatus according to any one or more of Examples 47 to 51, wherein the frame further includes a second receiving portion, and wherein the apparatus includes a second stabilizing component that can be connected to the second receiving portion.

[0241] Example 53

[0242] A device for stabilizing a patient includes: (a) a frame having a first member and a second member, wherein the positions of the first member and the second member are adjustable to change the relative positions of the first member and the second member with respect to each other; (b) an actuator that can be connected to the frame; and (c) a first locking feature that can be connected to the actuator, wherein the actuator is configured to move the first locking feature between the first position and the second position, wherein in the first position, the first locking feature provides a frictional engagement that prevents the first member and the second member of the frame from moving away from each other, and wherein in the second position, the first locking feature allows the first member and the second member of the frame to move away from each other.

[0243] Example 54

[0244] According to the device described in Example 53, the device includes a cranial clamp for stabilizing the patient's head.

[0245] Example 55

[0246] The apparatus according to any one or more of Examples 53 to 54 includes a second locking feature configured to contact the first locking feature.

[0247] Example 56

[0248] According to the apparatus of Example 55, a portion of the second locking feature and a portion of the first locking feature each include an inclined surface, wherein each of these inclined surfaces is configured to contact the other inclined surface.

[0249] Example 57

[0250] According to any one or more of Examples 55 to 56, in which translation of the first locking feature in a first direction causes the first locking feature to drive the second locking feature into contact with a portion of the frame.

[0251] Example 58

[0252] A device for stabilizing a patient includes: (a) a frame having a first member and a second member, wherein the positions of the first member and the second member are adjustable to change the relative positions of the first member and the second member with respect to each other; (b) an actuator that can be connected to the frame; and (c) a first locking feature that can be connected to the actuator, wherein the actuator is configured to move the first locking feature between a first position and a second position, wherein in the first position, the first locking feature provides a stepless engagement that prevents the first member and the second member of the frame from moving away from each other, wherein in the second position, the first locking feature allows the first member and the second member of the frame to move away from each other, and wherein the stepless engagement provides an infinitely variable adjustment increment for spacing the first member and the second member relative to each other.

[0253] Example 59

[0254] According to the device described in Example 58, the device includes a cranial clamp for stabilizing the patient's head.

[0255] Example 60

[0256] The apparatus according to any one or more of Examples 58 to 59 includes a second locking feature configured to contact the first locking feature.

[0257] Example 61

[0258] According to the apparatus of Example 60, a portion of the second locking feature and a portion of the first locking feature each include an inclined surface, wherein each of these inclined surfaces is configured to contact the other inclined surface.

[0259] Example 62

[0260] According to any one or more of Examples 60 to 61, in the apparatus, translation of the first locking feature in a first direction causes the first locking feature to drive the second locking feature into contact with a portion of the frame.

[0261] VIII. Miscellaneous

[0262] It should be understood that any one or more of the teachings, expressions, embodiments, examples, etc. described herein may be combined with any one or more of the other teachings, expressions, embodiments, examples, etc. described herein. Therefore, the foregoing teachings, expressions, embodiments, examples, etc., should not be considered in isolation from each other. In view of the teachings herein, various suitable ways in which the teachings may be combined will be apparent to those skilled in the art. Such modifications and variations are intended to be included within the scope of the claims.

[0263] Various embodiments of the invention have been shown and described. Those skilled in the art can make further adjustments to the methods and systems described herein with appropriate modifications without departing from the scope of the invention. Several such potential modifications have been mentioned, and others will be apparent to those skilled in the art. For example, the examples, embodiments, geometries, materials, dimensions, ratios, steps, etc., discussed above are illustrative and not essential. Therefore, the scope of the invention should be considered in accordance with the appended claims and should be understood as not being limited to the details of the structures and operations shown and described in the specification and drawings.

[0264] This article also provides the following terms:

[0265] 1. A device configured for use with a patient stabilization device, wherein the device adjusts the amount of force applied to the patient by the stabilization device, the device comprising:

[0266] (a) A first body having a first end and a second end, wherein the first end is configured to be connected to a stabilizing component of the stabilizing device;

[0267] (b) a second body, wherein the second body is bonded to the first body at the second end, thereby preventing the first body and the second body from rotating relative to each other; and

[0268] (c) An actuator that can be directly or indirectly connected to the second body, wherein the actuator is configured to cause a torque to be applied to the second body, wherein an increase in the torque on the second body causes an increase in tension within the first body, wherein the first body applies an increased force to the stabilizing component in response to the increase in tension within the first body.

[0269] 2. The device according to Clause 1, wherein the first body is rigid.

[0270] 3. The device according to Clause 1, wherein the dimensions of the first body remain constant when torque is applied to the first body and when the tension within the first body increases.

[0271] 4. The device according to Clause 1, comprising a second body that is bonded to the first body at a second end, thereby preventing the first body and the second body from rotating relative to each other.

[0272] 5. The device according to Clause 4, wherein the second body and the first body are oriented substantially perpendicular to each other.

[0273] 6. The device according to Clause 4, wherein the second body is rigid.

[0274] 7. The device according to Clause 4, wherein the actuator is directly or indirectly connected to the second body, wherein the actuator is configured to cause torque to be applied to the first body by applying torque to the second body and transmitting it to the first body, thereby increasing the tension within the first body.

[0275] 8. The device according to Clause 7, wherein the dimensions of the second body remain constant when a torque is applied to the second body, thereby causing an increase in tension within the first body.

Claims

1. A device for stabilizing a patient, comprising: (a) A stabilizing component configured to receive a stabilizing feature configured to contact a patient; as well as (b) A tensioning feature configured to receive the stabilizing component at a first position, the tensioning feature further comprising a second position spaced apart from the first position such that the second position is spaced apart from the stabilizing component, the tensioning feature including an actuator positioned at the second position such that the actuator is spaced apart from the stabilizing component, the tensioning feature including an elongated member extending from the actuator to the stabilizing component, the actuator being configured to cause movement of the elongated member relative to the stabilizing component when the stabilizing feature comes into contact with a patient to adjust the amount of force applied by the stabilizing component to the patient, wherein at least a portion of the elongated member is configured to bend in response to an increase in the force applied to the stabilizing component and accordingly apply a force toward the stabilizing component.

2. The apparatus of claim 1, wherein the actuator has a body and a portion of the elongated member extending away from the body is configured to bend in response to an increase in the force applied to the stabilizing component.

3. The apparatus of claim 1, wherein the actuator has a body, the actuator is configured to transmit rotational motion to the body, the body having a cylindrical portion including threads, the threads being configured to engage the threads of the elongated member to move the elongated member relative to the body.

4. The apparatus of claim 1, further comprising a frame assembly having a first frame portion and a second frame portion, the actuator having a body configured to transmit rotational motion to the body, the body having a cylindrical portion including threads configured to engage threads of the second frame portion to move the second frame portion and the elongated member relative to the first frame portion.

5. The apparatus of claim 1, wherein the actuator includes a lever and a locking feature configured to releasably hold the lever at a selected position among a plurality of predetermined positions relative to the body of the actuator.

6. The device of claim 1, further comprising a force indicating feature configured to indicate the amount of force applied by the stabilizing component to the patient.

7. The apparatus according to claim 6, wherein the force indicating feature comprises a plurality of indicators, wherein, The elongated member is movable relative to the plurality of indicators to indicate the amount of force applied to the patient by the stabilizing component.

8. The apparatus of claim 1 further includes a frame assembly comprising a first frame portion and a second frame portion, the first frame portion and the second frame portion being selectively movable relative to each other to adjust the space between the first frame portion and the second frame portion.

9. The apparatus of claim 8, wherein the tensioning feature is configured to adjust the amount of force applied to the patient by the stabilizing component while maintaining the relative positions of the first frame portion and the second frame portion such that the space between the first frame portion and the second frame portion remains unchanged.

10. The apparatus of claim 8, wherein the tensioning feature is configured to adjust the amount of force applied to the patient by the stabilizing component, while the relative positions of the first frame portion and the second frame portion change with the adjustment of the amount of force applied to the patient by the stabilizing component, such that the space between the first frame portion and the second frame portion changes.

11. The apparatus according to claim 1, wherein, The tensioning feature includes a body, wherein the actuator is configured to move the elongated member relative to the body to transmit force to the elongated member, and wherein the elongated member is configured to transmit at least a portion of the force to the stabilizing component to increase the amount of force applied to the patient by the stabilizing component.

12. The apparatus according to claim 1, further comprising: A frame component, the frame component comprising a first frame portion and a second frame portion; as well as An adjustment feature is configured to adjust the relative position of the first frame portion and the second frame portion to overcome the force applied to the stabilizing component by the tensioning feature.

13. The apparatus according to claim 1, wherein, The tensioning feature includes a torsion bar, wherein a torque on the torsion bar transmits a force to the elongated member, and wherein the elongated member transmits at least a portion of the force to the stabilizing component to increase the amount of force applied by the stabilizing component to the patient.

14. The apparatus according to claim 1, wherein, The tensioning feature is configured to apply the amount of force to the stabilizing component via a torsional action.

15. The apparatus according to claim 1, wherein, The actuator is configured to provide pretension to the stabilizing component.

16. The apparatus of claim 1, wherein the stabilizing component defines a proximal end and a distal end, wherein, The distal end is configured to receive the stabilizing feature, and the stabilizing component further defines an axis extending from the proximal end to the distal end, wherein the actuator positioned at the second location is positioned along an axis different from the axis defined by the stabilizing component.

17. A device configured for use with a patient stabilization device, wherein, The device adjusts the amount of force applied to the patient by the patient stabilization device, the device comprising: (a) A first body having a first end and a second end, wherein the first end is configured to connect to a stabilizing component of the patient stabilizing device; (b) A second body, wherein the second body is bonded to the first body at the second end to prevent the first body and the second body from rotating relative to each other; and (c) An actuator that can be directly or indirectly connected to the second body, wherein the actuator is configured to cause a torque to be applied to the second body, wherein an increase in the torque on the second body causes an increase in tension within the first body, wherein the first body applies an increased force to the stabilizing component in response to the increase in tension within the first body.

18. The device according to claim 17, wherein, The first body is rigid.

19. The device according to claim 17, wherein, When torque is applied to the first body and the tension within the first body increases, the dimensions of the first body remain constant.

20. The device according to claim 17, wherein, The second body and the first body are oriented substantially perpendicular to each other.

21. The device according to claim 17, wherein, The second body is rigid.

22. The device according to claim 17, wherein, The actuator is configured to cause torque to be applied to the first body by applying torque to the second body and transmitting it to the first body, thereby increasing the tension within the first body.

23. The device according to claim 22, wherein, When torque is applied to the second body, causing an increase in tension within the first body, the dimensions of the second body remain constant.

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