Spine osteotome

Abstract

The utility model relates to the technical field of spine osteotome, in particular to a spine osteotome, which comprises a handle part, a chisel head and an adjusting mechanism, the adjusting mechanism comprises a mounting plate, two sliding components, a grip, a bolt and a locking component, the handle part is provided with three positioning holes, the chisel head is fixedly connected with the handle part, the mounting plate is fixedly connected with the handle part, and the handle part is provided with three positioning holes. The grip is slidably connected with the handle portion and located below the mounting plate, the two sliding assemblies are arranged at the two ends of the handle portion respectively, the plug pin is slidably connected with the handle portion and the grip and penetrates through the handle portion and the grip, the plug pin is located in one positioning hole, the locking assembly is arranged on the plug pin, and the position of the grip is adjusted through the adjusting mechanism. Therefore, the distance between the grip and the chisel head is changed, and a doctor can change the distance between the chisel head and the handheld part according to own habits, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of spinal bone chisel technology, and in particular to a spinal bone chisel. Background Technology

[0002] A vertebral chisel is an instrument used in spinal surgery. Currently, because the bone fragments are irregularly shaped after being removed through the cleaning groove, they cannot meet the needs of bone grafting. Therefore, after removing the bone fragments, they still need to be reshaped before bone grafting. Bone marrow cells will still be exposed to the air, causing them to dry out or even die.

[0003] A bone grafting chisel is disclosed in patent application CN 219921143 U, which includes a handle, a chisel body, a sliding connecting block, a sliding connecting groove, a clamping groove, a clamping ball, and a clamping spring. The device is designed by setting up a handle and a chisel body, selecting a suitable-shaped chisel body, and sliding the sliding connecting block at the top of the chisel body into the sliding connecting groove at the bottom of the handle. When the bottom of the clamping groove is aligned with the bottom of the clamping ball, the clamping ball is engaged with the clamping groove under the action of the clamping spring, thereby fixing the chisel body and the handle body for use. After bone harvesting, the bone block inside the chisel body can be pushed into the cavity of the bone defect by using a pusher plate to complete the bone grafting. The bone grafting process is more convenient and does not require secondary trimming of the bone block.

[0004] However, in the existing technology, doctors control the bone chisel by holding the handle to perform surgery. The distance between the handle and the chisel head is fixed, and doctors cannot change the distance between the chisel head and the hand holding part according to their own habits, which makes the device less practical. Utility Model Content

[0005] The purpose of this invention is to provide a spinal chisel that solves the problem in the prior art where doctors control the chisel by holding the handle during surgery, and the distance between the handle and the chisel head is fixed, preventing doctors from changing the distance between the chisel head and the handhold according to their own habits, resulting in low practicality of the device.

[0006] To achieve the above objectives, this utility model provides a spinal chisel, including a handle, a chisel head, and an adjustment mechanism. The adjustment mechanism includes a mounting plate, two sliding components, a handle, a pin, and a locking component. The handle has three positioning holes. The chisel head is fixedly connected to the handle. The mounting plate is fixedly connected to the handle. The handle is slidably connected to the handle and located below the mounting plate. The two sliding components are respectively disposed at both ends of the handle. The pin is slidably connected to the handle and the handle, and passes through the handle and the handle. The pin is located in one of the positioning holes. The locking component is disposed on the pin.

[0007] The sliding component includes a sliding groove and a sliding strip. The sliding groove is disposed at one end of the handle, one end of the sliding strip is fixedly connected to the mounting plate, the sliding strip is fixedly connected to the handle portion, and the sliding strip is slidably connected to the handle and located within the sliding groove.

[0008] The locking assembly includes a threaded rod and a fixing block. The pin has a threaded hole. The threaded rod is rotatably connected to the fixing block and passes through the fixing block. The threaded rod is threadedly connected to the pin and is located in the threaded hole.

[0009] The locking component further includes two locking blocks and two locking slots. The two locking blocks are fixedly connected to both ends of the fixing block and are located at the end of the fixing block near the pin. The two locking slots are respectively disposed at both ends of the pin. The two locking blocks are slidably connected to the pin.

[0010] The adjustment mechanism further includes two limiting posts, a connecting seat, and a fixing rope. The two limiting posts are fixedly connected to both ends of the handle and are located at the end of the handle closer to the mounting plate. The connecting seat is fixedly connected to the handle and is located at the end of the handle away from the mounting plate. The fixing rope is fixedly connected to the connecting seat.

[0011] This utility model discloses a spinal chisel. When using this device for surgery, the handle is slid to adjust the distance between the handle and the chisel head. After the handle is adjusted to an appropriate position, a pin is inserted into the handle and the handle portion. The pin enters the corresponding positioning hole, and then the locking component fixes the pin in the positioning hole, thus fixing the handle to the handle portion. The handle portion has three positioning holes, so the handle can be adjusted to three different positions. Doctors can adjust the distance between the handle and the chisel head according to their own usage habits, thereby increasing the practicality of the device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the spinal bone chisel of this utility model.

[0014] Figure 2 This is a side view of the spinal bone chisel of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is a schematic diagram of the pin and locking assembly of this utility model.

[0017] Figure 5 This is a cross-sectional view of the pin and locking assembly of this utility model.

[0018] 101-Handle, 102-Chisel head, 103-Grip, 104-Mounting plate, 105-Slide bar, 106-Slide groove, 107-Limiting post, 108-Connecting seat, 109-Fixing rope, 110-Positioning hole, 111-Pin, 112-Fixing block, 113-Threaded rod, 114-Clocking block, 115-Clocking groove, 116-Threaded hole. Detailed Implementation

[0019] Please see Figures 1 to 5 ,in, Figure 1 This is a schematic diagram of the spinal bone chisel of this utility model. Figure 2 This is a side view of the spinal chisel of this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is a structural schematic diagram of the pin and locking assembly of this utility model. Figure 5 This is a cross-sectional view of the pin and locking assembly of this utility model.

[0020] This utility model provides a spinal chisel, including a handle 101, a chisel head 102, and an adjustment mechanism. The adjustment mechanism includes a mounting plate 104, two limiting posts 107, a connecting seat 108, a fixing rope 109, two sliding components, a grip 103, a pin 111, and a locking component. The handle 101 has three positioning holes 110. The sliding components include two locking blocks 114, two locking grooves 115, a sliding groove 106, and a sliding strip 105. The locking component includes a threaded rod 113 and a fixing block 112. The pin 111 has a threaded hole 116. The aforementioned solution solves the problem in the prior art where the distance between the handle 101 and the chisel head 102 is fixed, and the doctor cannot change the distance between the chisel head 102 and the hand grip according to their own habits, resulting in low practicality of the device.

[0021] In this embodiment, the chisel head 102 is fixedly connected to the handle portion 101, the mounting plate 104 is fixedly connected to the handle portion 101, the grip 103 is slidably connected to the handle portion 101 and located below the mounting plate 104, two sliding components are respectively disposed at both ends of the handle portion 101, the pin 111 is slidably connected to the handle portion 101 and the grip 103, and passes through the handle portion 101 and the grip 103, and the pin 111 is located in one of the positioning holes 110, the locking component is disposed on the pin 111. When using this device for surgery, the grip 103 is slid to adjust the... The distance between the grip 103 and the chisel head 102 is described. After the grip 103 is adjusted to an appropriate position, the pin 111 is inserted into the grip 103 and the handle portion 101. The pin 111 enters the corresponding positioning hole 110, and then the locking component fixes the pin 111 in the positioning hole 110, so that the grip 103 is fixed on the handle portion 101. The handle portion 101 has three positioning holes 110, so the grip 103 can be adjusted to three different positions. Doctors can adjust the distance between the grip 103 and the chisel head 102 according to their own usage habits, thereby increasing the practicality of the device.

[0022] Furthermore, the slide groove 106 is disposed at one end of the grip 103, one end of the slide bar 105 is fixedly connected to the mounting plate 104, the slide bar 105 is fixedly connected to the handle portion 101, the slide bar 105 is slidably connected to the grip 103, and is located in the slide groove 106.

[0023] In this embodiment, when adjusting the distance between the handle 103 and the chisel head 102, when the handle 103 slides on the handle portion 101, the two slide bars 105 slide in the two slide grooves 106 respectively. The two slide bars 105 and the two slide grooves 106 limit and guide the movement of the handle 103, preventing the handle 103 from not moving when sliding on the handle portion 101.

[0024] Furthermore, the threaded rod 113 is rotatably connected to the fixed block 112 and passes through the fixed block 112. The threaded rod 113 is threadedly connected to the pin 111 and is located in the threaded hole 116.

[0025] Furthermore, the two locking blocks 114 are respectively fixedly connected to both ends of the fixing block 112 and located at one end of the fixing block 112 near the pin 111, the two locking slots 115 are respectively disposed at both ends of the pin 111, and the two locking blocks 114 are slidably connected to the pin 111.

[0026] In this embodiment, when adjusting the distance between the handle 103 and the chisel head 102, as the handle 103 slides on the handle portion 101, the two slide bars 105 slide within the two slide grooves 106 respectively. The two slide bars 105 and the two slide grooves 106 limit and guide the movement of the handle 103. After the handle 103 is adjusted to the appropriate position, the pin 111 is inserted into the handle 103 and the handle portion 101. The pin 111 enters the corresponding positioning hole 110, and then the threaded rod 113 is screwed... The screw is inserted into the threaded hole 116, the fixing block 112 fits against the handle 103, the two locking blocks 114 respectively enter the two locking slots 115, and the pin 111 is fixed in the positioning hole 110, so that the handle 103 is fixed on the handle part 101. The handle part 101 has three positioning holes 110, so the handle 103 can be adjusted to three different positions. Doctors can adjust the distance between the handle 103 and the chisel head 102 according to their own usage habits, thereby increasing the practicality of the device.

[0027] Furthermore, the two limiting posts 107 are fixedly connected to both ends of the handle 103 and are located at the end of the handle 103 near the mounting plate 104. The connecting seat 108 is fixedly connected to the handle 103 and is located at the end of the handle 103 away from the mounting plate 104. The fixing rope 109 is fixedly connected to the connecting seat 108.

[0028] In this embodiment, when a doctor uses the device to perform surgery, the doctor holds the handle 103 with the upper part of the hand in contact with the two limiting posts 107 to prevent the palm from sliding with the handle 103 when the handle part 101 is struck. The fixing rope 109 is also put around the wrist to ensure that the device will not fall off the hand directly, thus increasing the stability of the device during use.

[0029] When adjusting the distance between the handle 103 and the chisel head 102 using this invention, as the handle 103 slides on the handle portion 101, the two slide bars 105 slide within the two slide grooves 106 respectively. The two slide bars 105 and the two slide grooves 106 limit and guide the movement of the handle 103. After the handle 103 is adjusted to the appropriate position, the pin 111 is inserted into the handle 103 and the handle portion 101. The pin 111 enters the corresponding positioning hole 110, and then the threaded rod 113 is screwed... The screw is inserted into the threaded hole 116, the fixing block 112 fits against the handle 103, the two locking blocks 114 respectively enter the two locking slots 115, and the pin 111 is fixed in the positioning hole 110, so that the handle 103 is fixed on the handle part 101. The handle part 101 has three positioning holes 110, so the handle 103 can be adjusted to three different positions. Doctors can adjust the distance between the handle 103 and the chisel head 102 according to their own usage habits, thereby increasing the practicality of the device.

[0030] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A spinal chisel, comprising a handle and a chisel head, wherein the chisel head is fixedly connected to the handle, characterized in that, It also includes an adjustment mechanism, which comprises a mounting plate, two sliding components, a handle, a pin, and a locking component. The handle portion has three positioning holes. The mounting plate is fixedly connected to the handle portion. The handle is slidably connected to the handle portion and located below the mounting plate. The two sliding components are respectively disposed at both ends of the handle portion. The pin is slidably connected to the handle portion and the handle and passes through the handle portion and the handle, and the pin is located in one of the positioning holes. The locking component is disposed on the pin.

2. The spinal chisel as described in claim 1, characterized in that, The sliding assembly includes a slide groove and a slide bar. The slide groove is disposed at one end of the grip, one end of the slide bar is fixedly connected to the mounting plate, the slide bar is fixedly connected to the handle portion, the slide bar is slidably connected to the grip, and is located within the slide groove.

3. The spinal chisel as described in claim 2, characterized in that, The locking assembly includes a threaded rod and a fixing block. The pin has a threaded hole. The threaded rod is rotatably connected to the fixing block and passes through the fixing block. The threaded rod is threadedly connected to the pin and is located in the threaded hole.

4. The spinal chisel as described in claim 3, characterized in that, The locking assembly further includes two locking blocks and two locking slots. The two locking blocks are fixedly connected to both ends of the fixing block and are located at the end of the fixing block near the pin. The two locking slots are respectively disposed at both ends of the pin. The two locking blocks are slidably connected to the pin.

5. The spinal chisel as described in claim 4, characterized in that, The adjustment mechanism also includes two limiting posts, a connecting seat, and a fixing rope. The two limiting posts are fixedly connected to both ends of the handle and are located at the end of the handle closer to the mounting plate. The connecting seat is fixedly connected to the handle and is located at the end of the handle away from the mounting plate. The fixing rope is fixedly connected to the connecting seat.

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