Bone staple delivery devices, bone staples and methods of use thereof
The bone staple delivery device with a platform and lever actuator maintains the clamped state of staples for consistent compressive force on fractured bones, addressing the issue of losing clamped position upon device release.
Patent Information
- Application Number
- JP2025013891
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-31
- Filing Date
- 2025-01-30
- Publication Date
- 2025-08-13
AI Technical Summary
Existing bone staple delivery devices struggle to maintain the clamped position of staples once the device is released by the operator, leading to potential loss of compressive force for holding fractured bones.
A bone staple delivery device with an elongated platform and lever actuator that forms a staple clamp, allowing the staple to be clamped and spread for insertion into bone, and maintains the clamped state even when the device is not held by the operator, using a mechanism where the lever handle and lever head surfaces align to prevent rotation and retain the clamped position.
Ensures that the staples remain clamped and spread apart for insertion into bone, providing consistent compressive force to hold fractured bones together, even after the device is released.
Smart Images

Figure 2025118568000001_ABST
Abstract
Description
[Technical Field]
[0001] FIELD OF THE DISCLOSURE The present disclosure relates to medical devices, and in particular to bone staple delivery devices, bone staples and methods of use thereof. [Background technology]
[0002] Bone staples are used to hold fractured bones together, particularly by providing a compressive force that urges adjacent bone segments toward each other on either side of the fracture. Staples generally include a crown with two legs at opposite ends of the crown. The staple is placed into the bone so that the crown spans the fracture and each of the legs resides in one of the adjacent bone segments.
[0003] Prior to placement into the bone segment, the staple is placed into a delivery device that causes the legs to spread apart due to elastic deformation of the staple. When the staple is released from the delivery device, the elastic memory of the staple causes the legs to elastically return toward each other. The force associated with the staple legs being urged back toward each other by their elastic memory provides a compressive force that urges adjacent bone segments toward each other on either side of the fracture. Summary of the Invention [Means for solving the problem]
[0004] The present disclosure provides a medical device including a bone staple delivery device. The bone staple delivery device includes an elongated platform and a lever actuator. The platform and lever actuator form a staple clamp for clamping a bone staple. The lever actuator has a lever handle and a lever head, the lever handle being rotatable relative to the platform and having a distal end face including a flat distal end face and an arcuate distal end face. The lever head has a flat proximal end face.
[0005] When a staple is loaded into the clamp staple and the lever handle is rotated in a first direction toward the platform by a closure force, the bone staple delivery device is operable such that the arcuate distal end surface of the lever handle contacts the flat proximal end surface of the lever head and moves the lever head distally relative to the platform to close the staple clamp on the staple.
[0006] When the lever handle is further rotated in a first direction toward the platform by the closing force, the flat distal end surface of the lever handle and the flat proximal end surface of the lever head are brought into a parallel alignment facing each other, which prevents the lever handle from rotating in a second direction away from the platform when the closing force is removed.
[0007] The above and other features of the present disclosure, and the manner in which they are achieved, will be more clearly and better understood by reference to the following description of the embodiments described herein in conjunction with the accompanying drawings. [Brief explanation of the drawings]
[0008] [Figure 1] FIG. 1 is a perspective view of a medical device according to the present disclosure including a bone staple delivery device and a staple. [Figure 2A] FIG. 2 is an enlarged side view of the staple of FIG. 1. [Figure 2B] FIG. 10 is an enlarged side view of another staple in accordance with the present disclosure. [Figure 3] 2 is a close-up perspective view of a distal region of the bone staple delivery device of FIG. 1. FIG. [Figure 4] FIG. 2 is another close-up perspective view of the distal region of the bone staple delivery device of FIG. 1. [Figure 5] 2 is a perspective view of the medical device of FIG. 1 with bone staples loaded into the bone staple delivery device and the staples undeformed. [Figure 6]2 is a top view of the medical device of FIG. 1 with bone staples loaded into the bone staple delivery device, the staples unclamped and undistorted. [Figure 7] 2 is a top view of the medical device of FIG. 1 with bone staples loaded into the bone staple delivery device and the staples clamped and deformed. [Figure 8] 2 is a close-up perspective view of a distal region of the platform of the bone staple delivery device of FIG. 1. FIG. [Figure 9] 2 is a perspective view of a lever head of the bone staple delivery device of FIG. 1; [Figure 10] 2 is another perspective view of the lever head of the bone staple delivery device of FIG. 1. [Figure 11] 2 is a perspective view of a distal region of the lever head and platform of the bone staple delivery device of FIG. 1. FIG. [Figure 12] 2 is a side view of a distal region of the lever handle of the bone staple delivery device of FIG. 1. FIG. [Figure 13] 2 is a perspective view of a distal region of the lever handle and lever head of the bone staple delivery device of FIG. 1. FIG. [Figure 14] 2 is another perspective view of the distal region of the lever handle and lever head of the bone staple delivery device of FIG. 1. FIG. [Figure 15] 2 is a side view of the distal region of the lever handle and lever head of the bone staple delivery device of FIG. 1. FIG. [Figure 16] FIG. 10 is a perspective view of another bone staple delivery device in accordance with the present disclosure; [Figure 17] 17 is another perspective view of the bone staple delivery device of FIG. 16. FIG. [Figure 18] 17 is another perspective view of the bone staple delivery device of FIG. 16. FIG. [Figure 19] 17 is a perspective view of a bone staple installed within the bone staple delivery device of FIG. 16 and an unclamped and undistorted staple. [Figure 20]17 is a perspective view of a bone staple incorporated into the bone staple delivery device of FIG. 16 and the staple being clamped and deformed. [Figure 21] FIG. 10 is a perspective view of another bone staple delivery device and staple in accordance with the present disclosure; DETAILED DESCRIPTION OF THE INVENTION
[0009] It can be appreciated that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The invention herein is capable of other embodiments and of being practiced or carried out in various ways. Also, it can be appreciated that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting, and therefore can be understood by one skilled in the art.
[0010] 1 shows a medical device 10 according to the present disclosure, including a manual (hand-operated) bone staple delivery device 100a and bone staples 20a. Staple delivery device 100a is used to deliver bone staples 20a into a host, particularly to facilitate repair of a fracture.
[0011] 2A, bone staple 20a includes an arcuate / arcuate (convex) crown 30 (which may be understood to define the width of the staple) and two fastening legs 40, 50 disposed at the lateral ends of crown 30. As shown, crown 30 and legs 40, 50 extend and are disposed entirely within anterior surface (common plane) 22, and crown 30 extends inwardly away from legs 40, 50 toward longitudinal centerline 24 of staple 20a / crown 30 such that crown 30 is continuously outwardly convex away from legs 40, 50. As also shown, the legs 40, 50 linearly and continuously taper (converge) toward one another as they extend away from the crown 30, and the inner surfaces of each of the legs 40, 50 face one another, including a plurality of reverse barbs 42, 52 disposed along the longitudinal lengths of the legs 40, 50. Staple 20a, as well as staple 20b in FIG. 2B, may be formed from nitinol.
[0012] Returning to FIG. 1 , staple delivery device 100a includes an elongated platform 110 having a longitudinal length extending along a longitudinal axis 102 of staple delivery device 100. As shown, elongated platform 110, which includes an elongated platform body 112 (shown as a unitary body), has a proximal (gripping end) region 114 and a distal (working end) region 116. As used herein, the terms "proximal" and "distal" may be understood as relative to an operator (e.g., a medical practitioner, such as a physician) of staple delivery device 100a.
[0013] Staple delivery device 100a further includes an elongated lever actuator 120 that both rotates / pivots relative to platform 110, as well as translates relative to platform 110. More specifically, lever actuator 120 includes a lever handle 122 that rotates / pivots relative to platform 110, and a lever head 140 that translates relative to platform 110.
[0014] Lever handle 122 has a longitudinal length that can extend along longitudinal axis 102 of staple delivery device 100 depending on the rotational position of lever handle 122. Lever handle 122 rotates about a pivot axis 132 of pivot 130, shown as provided by a pivot pin. Lever handle 122 includes an elongated lever handle body 124 (shown as a unitary body) having a lever handle proximal (gripping end) region 126 and a lever handle distal (actuating end) region 128.
[0015] The translatable lever head 140 has a longitudinal length extending along the longitudinal axis 102 of the staple delivery device 100. The lever head 140 slides by linear motion along the longitudinal axis 102 of the staple delivery device 100a, which is also the longitudinal axis of the platform 110 and the lever head 140. As shown, the longitudinal axis 102 and the pivot axis 132 intersect one another, specifically at a right angle. The lever head 140 includes a lever head body 142 (shown as a unitary body), which in turn has a lever head proximal region 146 and a lever head distal region 150.
[0016] As shown, lever head 140, particularly proximal region 146, is securely mechanically coupled (resisting separation) to lever handle 122, particularly distal region 128. As described in more detail below, when lever handle 122 is rotated toward elongated platform 110, more specifically when proximal region 126 is rotated toward proximal region 114 of platform 110, lever head 140 moves linearly in a distal direction along longitudinal axis 102 of staple delivery device 100a. Conversely, when lever handle 122 is rotated away from elongated platform 110, more specifically when proximal region 126 is rotated away from proximal region 114 of platform 110, lever head 140 moves linearly in a proximal direction along longitudinal axis 102 of staple delivery device 100a.
[0017] As shown in Figure 1, staple delivery device 100a includes a staple clamp 154 at the working end 104 of staple delivery device 100a. As better shown in Figure 3, staple clamp 154 includes opposing proximal clamping surfaces 156 (formed by lever head distal (end) surfaces 152 of lever head 140) and distal clamping surfaces 158 (formed by end walls 164 of distal region 116 of platform 110), as better shown in Figure 4.
[0018] Referring to Figure 5, staples 20a are shown installed within clamp 154, with clamp 154 in a staple installed position (sometimes referred to as a clamp open position) and staples 20a in an unclamped (undeformed) state. Referring to Figure 6, which is a top view of Figure 5. With reference to Figures 5 and 6, legs 40, 50 linearly and continuously taper toward one another as they extend away from crown 30.
[0019] 7, the clamp 154 is in a staple loaded and clamped position (sometimes referred to as a clamp closed position), in which the staple 20a is in a clamped (or elastically deformed) state. As shown, the crown 30 of the staple 20a is elastically deformed, flattening the arc / curvature of the crown 30, which causes the legs 40, 50 of the staple 20a to spread further apart (expand away from the centerline 24 within the anterior surface 22) and separate (diverge) to be more parallel, particularly substantially parallel (e.g., within 10 degrees of parallel). With the staple 20a positioned in this position, the staple 20a can then be placed into the bone so that the crown 30 spans the fracture and each of the legs 40, 50 resides in one of the adjacent bone segments. When staple 20a is released from staple delivery device 100a, the elastic memory of staple 20a, and more specifically crown 30, being urged toward its initial "curved" state, tends to elastically return legs 40, 50 toward one another. The force associated with staple legs 40, 50 being urged toward one another by elastic memory / return provides a compressive force that urges adjacent bone segments toward one another on either side of the fracture.
[0020] 8-11, the distal region 116 of the platform 110 is shown in FIG. 8, the lever head 140 is shown in FIGS. 9-10, and the lever head 140 assembled to the platform is shown in FIG.
[0021] As shown in FIG. 8 , the distal region 116 of the platform 110 includes a U-shaped structure 160 having two longitudinally extending parallel arms 162 and a lateral distal end wall 164 that define a receiving space 166. As shown, the arms 162 are bilaterally symmetrical mirror images of one another. The inner surface of each arm 162 of the platform 110 includes a longitudinally extending, protruding, elongated linear rail 170 that is received in the elongated linear rail grooves 144 of the lever head 140, respectively, formed on opposing sides 143 of the lever head 140, as shown in FIG. 11 . In this way, the linear rail 170 (which may be understood as a first connector) and the linear groove 144 (which may be understood as a second connecting connector that is connected to the first connector) are securely mechanically coupled (against separation), in particular are slidably engaged with each other by a sliding coupling, and form a linear guide track 138 for the proximal / distal movement of the lever head 140.
[0022] 12-15, the proximal region 146 of the lever head 140 and the distal region 128 of the lever handle 122 are mechanically coupled such that rotational movement of the lever handle 122 about the pivot axis 132 in a first direction (e.g., away from the proximal end region 114 of the platform 110) results in linear (translational) movement of the lever head 140 in the first direction (e.g., proximal direction), and rotational movement of the lever handle 122 about the pivot axis 132 in a second direction opposite the first direction (e.g., toward the proximal end region 114 of the platform 110) results in linear (translational) movement of the lever head 140 in the second direction opposite the first direction (e.g., distal direction).
[0023] As shown, the proximal region 146 of the lever head 140 includes a T-shaped slot 180 formed by the proximal (end) face 148 of the lever head 140 and two opposed, laterally spaced, curved proximal end projections 182, which are more particularly shown as limbs having an elbow shape, specifically an L-shape with a 90-degree bend. As shown, the projections 182 are mirror images of each other, and as the projections 182 extend proximally, the projections 182 bend toward each other and toward the longitudinal axis 102. As shown, the T-shaped slot 180 provides a receptacle for receiving a T-shaped section 190 of the lever handle 122. As shown, the T-shaped section 190 includes a stem 192 extending parallel to the longitudinal axis 102 and a crossbar 194 extending transversely (at a right angle) to the stem 192 and the longitudinal axis 102. As shown, opposing side surfaces 129 of the distal region 128 of the lever handle 122 each include an arcuate groove 196, the bottom of which is defined by the stem 192. As shown, each of the curved protrusions 182 of the lever head 140 is received within one of the arcuate grooves 196 of the lever handle 122. In this manner, the T-shaped section 190 of the lever handle 122 (which may be understood as a first connector) and the T-shaped slot 180 of the lever head 140 (which may be understood as a second connector that connects with the first connector) are securely mechanically coupled (against separation), and are slidably engaged with each other, particularly by a sliding coupling. Furthermore, an arcuate guide track 198 is formed by the protrusions 182 of the lever head 140 disposed within the grooves 196 of the lever handle 122.
[0024] During operation, the proximal end face 148 of the lever head 140 and the distal end face 200 of the lever handle 122 operatively interact with each other. As shown, the proximal end face 148 of the lever head 140 is flat. As further shown, the distal end face 200 of the lever handle 122 includes an adjacent flat end face 202 and an arcuate end face 204, which together extend a distance around the pivot axis 132.
[0025] Arcuate end surface 204 is the cam surface of cam 210 having a continuously increasing radial distance from pivot axis 132 from radial distance R1 to radial distance R2. As shown, the increasing radial distances extend through a subtended angle A of arcuate end surface 204 having pivot axis 132 as its vertex. In other words, angle A is the angle subtended by arcuate end surface 204 from the vertex / pivot axis 132. As shown, arcuate end surface subtended angle A is an acute angle about pivot axis 132 within the range of 75 degrees to 85 degrees. With respect to flat end surface 202, it extends through a subtended angle P of flat end surface 202 also having pivot axis 132 as its vertex from radial distance R2 to radial distance R3. In other words, angle P is the angle subtended by flat end surface 202 from the vertex / pivot axis 132. As shown, the interior angle P of the flat end face is an acute angle about the pivot axis 132 within the range of 20 to 30 degrees.
[0026] As the proximal region 126 of the lever handle 122 is rotated by the closing force toward the proximal region 114 of the platform 110, the increasing radial distance subtended by the angle A results in the arcuate end surface 204 of the actuation region 128 of the lever handle 122 contacting and pressing against the flat proximal end surface 148 of the lever head 140, the force causing the lever head 140 to move linearly distally along the longitudinal axis 102 of the staple delivery device 100a. During rotation, the lever head 140 moves along the linear guide track 138 formed by the lever head 140 and the platform 110, as well as along the arcuate guide track 198 formed by the lever head 140 and the lever handle 122.
[0027] As lever head 140 moves distally, clamp 154, having a proximal clamping surface 156 formed by lever head distal surface 152 of lever head 140 and a distal clamping surface 158 formed by end wall 164 of distal region 116 of platform 110, closes to clamp crown 30 of staple 20a. As clamp 154 closes to clamp crown 30 of staple 20a, crown 30 of staple 20a is elastically deformed to flatten the arc / curvature of crown 30, thereby causing legs 40, 50 of staple 20a to spread further apart (expand away from centerline 24 within leading surface 22) and separate (diverge) to become more parallel.
[0028] It should be noted that as the lever handle 122 is rotated toward the elongated platform 110 and the arcuate end surface 204 of the actuation area 128 of the lever handle 122 presses against the flat proximal end surface 148 of the lever head 140, a biasing force is applied to the lever handle 122 by the elastically deformed staples 20a, which urges the lever handle 122 to rotate in the opposite direction. Thus, if the manual (hand-applied) force to clamp the staples 20a is removed (e.g., the staple delivery device 100a is no longer held by the operator) while the arcuate end surface 204 of the actuation area 128 of the lever handle 122 is acting against the flat proximal end surface 148 of the lever head 140, the lever handle 122 will rotate away from the platform 110 and the clamping force on the staples 20a will be lost.
[0029] However, as the lever handle 122 is rotated further toward the elongated platform 110, the flat end surface 202 of the actuation region 128 of the lever handle 122 aligns with the flat proximal end surface of the lever head 140, followed by the arcuate end surface 204, so that the end surfaces 148, 202 face each other and are parallel, and the elastic (biasing) force of the staple 20a presses the flat end surface 148 of the lever head 140 toward and into contact with the flat end surface 202 of the lever handle 122.
[0030] As previously described, when the arcuate end surface 204 of the lever handle 122 is no longer in contact with the flat proximal end surface 148 of the lever head 140, the lever actuator 120 retains and maintains the locked state against the resilient (biasing) force of the staples 20a acting on the lever actuator 120. Thus, in this state, the staples 20a remain clamped with the legs 40, 50 and spread apart for insertion into bone, even though the staple delivery device 100a is no longer being held by the operator.
[0031] Once the legs 40, 50 are spread apart and inserted into the bone, the lever handle 122 is rotated in the opposite direction, i.e., away from the elongated platform 110, to open the clamp 154 and release the staples 20a. As the lever handle 122 is rotated away from the elongated platform 110, the protrusion 182 of the lever head 140 moves into the groove 196 of the lever handle 122, and the T-shaped section 190 of the lever handle 122 pulls the lever head 140 proximally.
[0032] Turning to the embodiment of Figures 16-20, with respect to staple delivery device 100b, lever head 140 is no longer mechanically coupled to lever handle 122. As with the previous embodiment, when proximal region 126 of lever handle 122 is rotated toward proximal region 114 of platform 110, lever head 140 moves linearly distally along longitudinal axis 102 of staple delivery device 100b. However, when proximal region 126 of lever handle 122 is rotated away from proximal region 114 of platform 110, lever head 140 does not move linearly proximally along longitudinal axis 102 of staple delivery device 100b because there is no mechanical coupling between lever head 140 and lever handle 122. Instead, lever head 140 must be moved manually (by hand).
[0033] Turning to the embodiment of FIG. 21, which uses staple 20b of FIG. 2B, staple 20b includes crown detent 70 for receiving lever head 140, which here is integrally formed with lever handle 122. As also shown, lever handle 122 rotates parallel to platform 110 about pivot screw 130. Thus, the embodiment of FIG. 21 operates "scissor-like" to rotate lever handle 122 relative to platform 110.
[0034] While preferred embodiments of the present invention have been described, it should be understood that various changes, adaptations, and modifications can be made therein without departing from the spirit of the invention and the scope of the appended claims. Therefore, the scope of the invention should not be determined with reference to the above description, but should instead be determined with reference to the appended claims, along with their full scope of equivalents. It should further be understood that the appended claims do not necessarily include the broadest scope of the invention that applicant is entitled to claim or the only way in which the invention may be claimed, or that not all of the described features are essential.
[0035] Reference Symbol List
[0036] 10 Medical Devices
[0037] 20 bone staples (20a, 20b)
[0038] 22 plane
[0039] 24 Center line
[0040] 30 crowns
[0041] 40 Legs
[0042] 42 Thorn
[0043] 50 Legs
[0044] 52 Thorn
[0045] 70 Detent
[0046] 100 bone staple delivery device (100a, 100b, 100c)
[0047] 102 Longitudinal axis
[0048] 104 Operating End
[0049] 110 Platform
[0050] 112 Platform body
[0051] 114 Platform proximal (grasping end) region
[0052] 116 Platform Distal (Working End) Region
[0053] 120 Lever Actuator
[0054] 122 Lever Handle
[0055] 124 Lever handle body
[0056] 126 Lever handle proximal (gripping end) region
[0057] 128 Lever handle distal (working end) region
[0058] 129 Lever handle side
[0059] 130 Pivot
[0060] 132 Pivot axis
[0061] 138 Guideway
[0062] 140 Lever Head
[0063] 142 Lever head body
[0064] 143 Lever head side
[0065] 144 Lever head groove
[0066] 146 Leverhead Proximal Region
[0067] 148 Lever head proximal (end) surface
[0068] 150 Leverhead distal (end) region
[0069] 152 Lever head distal (end) surface
[0070] 154 Clamp
[0071] 156 Proximal Clamping Surface
[0072] 158 Distal Clamping Surface
[0073] 160 U-shaped structure of the platform body
[0074] 162 Platform Arm
[0075] 164 Platform lateral end walls
[0076] 166 Platform Reception Space
[0077] 170 Platform Rail
[0078] 180 T-shaped slot in lever head
[0079] 182 Lever head protrusion
[0080] 190 Lever Handle T-Section
[0081] 192 stem
[0082] 194 Crossbar
[0083] 196 Groove
[0084] 198 Arc guideway
[0085] 200 Distal end face of lever handle
[0086] 202 Flat end face
[0087] 204 Arc-shaped end face
[0088] 210 Cam
[0089] A: The inner angle of the arc-shaped end face
[0090] P: Flat end face interior angle
[0091] R1 Radius distance 1
[0092] R2 Radial distance 2
[0093] R3 Radius distance 3. [Explanation of symbols]
[0094] 10 Medical Devices 20a bone staple 20b bone staple 22 Front (common surface) 24 Center line 30 crowns 40 Legs 42 Barbed 50 Legs 52 Barbed 70 Crown Detent 100 Bone staple delivery device 100a Bone staple delivery device 100b Bone staple delivery device 100c Bone Staple Delivery Device 102 Longitudinal axis 104 Operating End 110 Platform 112 Platform body 114 Platform proximal (grasping end) region 116 Platform Distal (Working End) Region 120 Lever Actuator 122 Lever Handle 124 Lever handle body 126 Lever handle proximal (gripping end) region 128 Lever handle distal (working end) region 129 Lever head side 130 Pivot, pivot screw 132 Pivot axis 138 Guideway 140 Lever Head 142 Lever head body 143 Lever head side 144 Lever head groove 146 Leverhead Proximal Region 148 Lever head proximal (end) surface 150 Leverhead Distal Region 152 Lever head distal (end) surface 154 Staple Clamp 156 Opposing Proximal Clamping Surfaces 158 Distal Clamping Surface 160 U-shaped structure of the platform body 162 Platform Arm 164 Platform lateral end walls 166 Platform Reception Space 170 Platform Straight Rail 180 T-shaped slot in lever head 182 Lever head protrusion 190 Lever Handle T-Section 192 stem 194 Crossbar 196 Groove 198 Arc guideway 200 Lever handle distal end face 202 Flat end face 204 Arc-shaped end face 210 Cam
Claims
1. A medical device comprising: a bone staple delivery device, the bone staple delivery device including an elongated platform and a lever actuator; the platform and the lever actuator form a staple clamp for clamping a bone staple; the lever actuator has a lever handle and a lever head, the lever handle being rotatable relative to the platform and having a distal end surface including a flat distal end surface and an arcuate distal end surface; the lever head has a flat proximal end surface; when the staple is loaded into the clamp staple and the lever handle is rotated in a first direction toward a platform by a closing force, the bone staple delivery device is operable to cause the arcuate distal end surface of the lever handle to contact the flat proximal end surface of the lever head and move the lever head distally relative to the platform to close the staple clamp onto the staple; When the lever handle is further rotated in the first direction toward the platform by the closing force, the flat distal end surface of the lever handle and the flat proximal end surface of the lever head are aligned parallel to each other, thereby preventing the lever handle from rotating in a second direction away from the platform when the closing force is removed.
2. the lever handle is rotatable about a pivot axis relative to the platform; The medical device of claim 1 , wherein the arcuate distal end surface of the lever handle extends about the pivot axis at increasing radial distances from the pivot axis.
3. The medical device of claim 1 , wherein the flat distal end surface of the lever handle is adjacent the arcuate distal end surface of the lever handle.
4. 10. The medical device of claim 1, wherein the angle subtended by the arcuate distal end face of the lever handle from the pivot axis is in the range of 75 degrees to 85 degrees.
5. 10. The medical device of claim 1, wherein the angle subtended by the flat distal end face of the lever handle from the pivot axis is in the range of 20 degrees to 30 degrees.
6. the bone staple delivery device has a longitudinal axis; the platform extends along the longitudinal axis and includes a platform distal region; The medical device of claim 1 , wherein the platform distal region includes two longitudinally extending arms separated by a receiving space that contains the lever head.
7. 7. The medical device of claim 6, wherein the lever head and the platform distal region form at least one linear guide track along which the lever head is movable proximally and distally along the longitudinal axis of the bone staple delivery device.
8. The medical device of claim 7 , wherein the at least one linear guide track comprises a linear rail disposed within a linear groove.
9. the platform distal end forms the linear rail; The medical device of claim 8 , wherein the lever head defines the linear groove.
10. 8. The medical device of claim 7, wherein the at least one linear guide track includes two linear guide tracks along which the lever head is movable in proximal and distal directions along the longitudinal axis of the bone staple delivery device.
11. The medical device of claim 10 , wherein each of the two linear guide tracks is formed by one of the longitudinally extending arms of the platform distal region and a side surface of the lever head, respectively.
12. the lever handle includes a lever handle distal region; the receiving space includes the lever handle distal region; 7. The medical device of claim 6, wherein the lever head and the lever handle distal region form at least one arcuate guide track along which the lever handle distal region is rotatable relative to the lever head.
13. The medical device of claim 12 , wherein the at least one arcuate guide track includes a protrusion disposed within an arcuate groove.
14. the lever head forms the protrusion; The medical device of claim 13 , wherein the lever handle distal region defines the arcuate groove.
15. 13. The medical device of claim 12, wherein the at least one arcuate guide track includes two arcuate guide tracks along which the lever handle distal region is rotatable relative to the lever head.
16. 16. The medical device of claim 15, wherein each of the two arcuate guide tracks is formed by a protrusion of the lever head and a side surface of the lever handle distal region, respectively.
17. 12. The medical device of claim 11, wherein the lever handle and the lever head are mechanically coupled by a T-shaped section of the lever handle positioned over a T-shaped slot in the lever head.
18. the platform includes a platform proximal region; the lever handle includes a lever handle proximal region; The medical device of claim 1 , wherein the platform proximal region and the lever handle proximal region each include a respective gripping region.
19. The medical device of claim 1 , wherein the bone staple delivery device is manually operable.
20. The medical device of claim 1 , further comprising the bone staple being incorporable into the bone staple delivery device.