TW201427635A - Vertebra hole expansion device - Google Patents

Abstract

This invention relates to a vertebra hole expansion device, comprising a stretching device of which a near end has a manipulative mechanism and a far end has an expansion device, wherein the expansion device can be adjusted into an expansion state or a contraction state by the manipulative mechanism; a covering device of which a far end is used for covering the expansion device to make the far end of the covering device generate a space in the vertebra through the expansion device being adjusted from the contraction state to the expansion state; and a connection mechanism used for connecting the near end of the covering device and the expansion device, wherein the connection mechanism has a connection position located outside the body during surgical process.

Description

Vertebral reaming device

The invention relates to a vertebral reaming device, in particular to a vertebral reaming device with a covering device.

In orthopedic surgery, it is often necessary to ream the vertebrae. There are two common types of orthopedic reaming operations: one is to use a mechanical reaming device for reaming, for example, US Patent Nos. 20110196494, 20110184447, 20100076426, 20070067034, 20060009689, 20050143827, 20220052623, 6354995, 6667665, etc., Taiwan Patent 585091, I318110, etc., but the biggest problem of this technology is that the cancellous bone fragments that are crushed during reaming often fall into the reaming device, so that the expansion The hole device is stuck, so that the reaming unit cannot be retracted (return to a state of contraction), and even the entire reaming device is stuck in the reaming portion and cannot be taken out.

The other is the use of a filling reaming device, such as the Kyphon series of products in the United States. Kyphon's series of products are a wide variety of balloons to meet different needs, and the related patents of the device itself are such as: US Patent 5972015, 6066154, 6235043, 6423083, 6607544, 6623505, 6663647, 6716216, etc., related patents of the methods of use such as: U.S. Patents 5972015, 6048346, 6234043, 6248110, 6280456, 6440138, 6607544, 6716216, 6719761, 6726691, and the like. In summary, Kypon's reaming device and reaming method use nothing more than high pressure to inject liquid (such as water) into the balloon (using various balloons according to different needs) to expand the balloon to push the vertebrae. The cancellous bone inside to achieve the purpose of reaming. However, the device or method has many disadvantages, for example, the balloon must be connected to a nozzle, so that when the liquid is poured into a high pressure, the balloon may be detached from the nozzle, and even a balloon may be broken, and the operation may be performed. The method is also more complicated; in addition, in order to meet different needs, the balloon must be designed with an internal restraint or an external restraint, for example, see the above-mentioned U.S. Patent 6,066,154, or a specially designed reaming device, for example U.S. Patent 6,235,043 makes the manufacture and use of balloons relatively difficult.

The vertebral reaming device of the present invention utilizes a covering device to cover a deployment device at the distal end of the distracting device, so that the distracting device can utilize mechanical force to expand and contract the deployment device of the distal end of the vertebral body, thereby vertebral bone The deployment device can further block the broken bone in the vertebra by the covering device, so as not to be caught by the broken bone in the vertebra, affecting the function of unfolding and contracting, or even causing the deployment device to fail. Retracting from the vertebral body; there is a connection mechanism between the covering device and the distracting device, wherein the covering device and the distracting device can further be a detachable connecting mechanism, and the detachable device is separated from the distracting device The connection mechanism, the vertebral reaming device can open the space in the vertebra and exit the vertebra, and the covering device can be easily removed by the distracting device. After disinfection, another new coating device can be connected and reused.

It is an object of the present invention to provide a vertebral reaming device.

Another object of the present invention is to provide a vertebral reaming device having a coating device.

It is still another object of the present invention to provide a reusable vertebral reaming device.

Still another object of the present invention is to provide a vertebral reaming device of a detachable covering device.

It is still another object of the present invention to provide a vertebral reaming device of a replaceable coating device.

It is still another object of the present invention to provide a vertebral reaming device having a function of distracting vertebrae.

Still another object of the present invention is to provide a vertebral reaming device that prevents a broken bone from getting stuck in the deployment device.

Still another object of the present invention is to provide a vertebral reaming device that creates a space within a vertebra.

The vertebral reaming device of the present invention comprises: a distracting device having a manipulation mechanism at a proximal end thereof and a deployment device at the distal end, wherein the deployment device can be adjusted to an expanded state or a contracted state by the manipulation mechanism a covering device having a distal end for covering the deployment device such that the distal end of the coating device can be adjusted from the contracted state to the deployed state to create a space in the vertebra (as shown in FIGS. 7a and 7b) And a linking mechanism for joining the covering device The proximal end and the distraction device, wherein the attachment mechanism is located outside the body during the procedure (as shown in Figure 7a).

The expansion device includes: a deployment device; a joystick having a proximal end of the joystick at one end and a distal end of the joystick at the other end, the distal end of the joystick being coupled to the deployment device; and an assist deployment device having one end The operating end is a binding end, wherein the operating end of the assisting deployment device is coupled to the proximal end of the operating lever to form the operating mechanism, and the operating mechanism enables the assisting deployment device to adjust the deployment device by using the operating lever In the unfolded state or the contracted state (as shown in FIGS. 3a to 3h), the engaging end of the assisting deployment device and the proximal end of the covering device have a coupling mechanism for connecting the assisting deployment device and the covering device Wherein the covering device is used to cover the operating lever and the unfolding device.

The deployment device described above may be any conventional deployment device, such as the deployment device described in the patents of the Japanese Patent No. 20110196494, No. 20110184447, No. 20100076426, 20070067034, 20060009689, 20050143827, 20220052623, 6354995, 6,667665, etc., or the patents of Taiwan Patent No. 585091, I318110, etc. Lantern-like deployment devices (Figs. 2a, 2b, 2c, 2d) or strip deployment devices (Figs. 2g, 2h, 2i) are preferred.

In the above-mentioned deployment device, the distal end thereof may have a circular arc convex portion (as shown in FIG. 1b) for abutting against the distal end of the covering device to prevent the distal end of the deployment device from being too sharp. , disassembling or assembling the cladding device or The coating device is pierced when the deployment device is operated.

In the above coating device, the distal end of the covering device may have a protruding portion (as shown in FIG. 1b), and the circular arc convex portion of the expanding device can bear against the protruding portion, wherein the protruding portion can be slightly thicker The thickness of other parts of the coating device is used to withstand the pressure from the deployment device.

The connection mechanism may be a fixed connection mechanism or a detachable connection mechanism (as shown in FIGS. 1b, 4a to 4f), and a detachable connection mechanism is preferred.

The detachable connection mechanism (shown in FIGS. 1b, 4a-4f), the detachable connection mechanism can easily remove the coating device from the expansion device, and the expansion device can be utilized after being sterilized. The detachable attachment mechanism is coupled to another new cladding device for reuse.

The distal end of the coating device may be any conventional shape such as a ball type, a ball type, a gourd type, a square shape, or a square type.

The covering device has an annular protrusion (shown in FIG. 1b) at the proximal end for coupling with the combined end of the assisting deployment device, and the annular protrusion can further have a fixed bump (as shown in the figure). 1b) or a snap-on component (as shown in Figures 4b, 4c) to increase the fixing effect of the combination of the covering device and the auxiliary deployment device, and to form a detachable connection with the combined end of the assisting deployment device .

The fixed connection mechanism may further include a connection kit that forms a fixed connection mechanism with the auxiliary deployment device to connect the packaging device and the auxiliary deployment device. The fixed connection mechanism Can be any conventional fixed connection mechanism, such as snapping, screwing, Linking and other linking mechanisms.

The detachable connection mechanism may further include a connection kit that forms a detachable connection mechanism (as shown in FIGS. 4a, 4d, and 4f) by coupling the end of the auxiliary deployment device to connect the cover And the assisting deployment device, the detachable connection mechanism can be any conventional detachable connection mechanism, such as a snapping, screwing, snapping, etc. connection (as shown in Figures 4a, 4d, 4f).

The detachable connection mechanism between the joint end of the assisting deployment device and the covering device can be any conventional detachable connecting mechanism, such as a snapping, screwing, snapping, etc. (as shown in FIGS. 4a and 4b, 4c, 4d, 4e, 4f)). Through the detachable connection method, the covering device is a detachable covering device, and the unfolding device can be re-installed after being sterilized by reloading another covering device.

The material of the coating device is made of a biocompatible material, and is preferably made of a biocompatible material such as PU (Polyurethane-Polyurethane), silicone rubber and nylon. (Nylon) and so on.

The vertebral reaming device may further include a hollow rod member having a proximal end and a distal end, wherein the proximal end of the hollow rod member is coupled to the engaging end of the assisting deployment device, the hollow The distal end of the rod is coupled to the proximal end of the deployment device (as shown in Figures 2g, 2h, 2i) or the distal end of the hollow member is substantially integrally formed with the proximal end of the deployment device (Figures 1a, 1b) , 2a, 2b, 2c, 2d, 2e, 2f), the expansion device can be controlled by the relative stretching motion of the joystick and the hollow member (as shown in Figures 3a, 3b, 3c, 3d) The deployment device adjusts it to an expanded state or a contracted state.

100‧‧‧Opening device

110‧‧‧Expanding device

111‧‧‧ Lantern-like deployment device

112‧‧‧ slitting

113‧‧‧Slots

114‧‧‧Strip development device

115‧‧‧ plate-shaped expansion device

116‧‧‧Expanding rods

117‧‧‧ Blade type expansion device

118‧‧‧Arc convex

119‧‧‧ thread

120‧‧‧Assist in the deployment of the device

130‧‧‧Joystick

140‧‧‧ hollow rods

200‧‧‧Covering device

210‧‧‧ type ball cover parts

211‧‧‧ protruding parts

220‧‧‧ rod-shaped covering parts

230‧‧‧ annular convex

231‧‧‧Fixed holes

232‧‧‧Snap parts

233‧‧‧ring groove

234‧‧‧ side panels

300‧‧‧Removable connection mechanism

310‧‧‧Link kit

311‧‧‧Bump engaging parts

312‧‧‧Snap hole

313‧‧‧Carmen

320‧‧‧Binding end

321‧‧‧fixed slot

322‧‧‧fixed bumps

323‧‧‧ snap groove

324‧‧‧Clamping bumps

325‧‧‧ ring bumps

326‧‧‧ engaging blades

400‧‧‧ pipe fittings

500‧‧‧ vertebrae

600‧‧‧ space

1a is a schematic view of a preferred embodiment of a vertebral reaming device of the present invention.

FIG. 1b is a schematic exploded view of a preferred embodiment of a vertebral reaming device according to the present invention.

2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m, 2n, 2o are schematic diagrams showing a preferred embodiment of the deployment device of the vertebral reaming device of the present invention.

3a, 3b, 3c, 3d, 3e, 3f, 3g, and 3h are schematic diagrams showing preferred embodiments of the four types of vertebral reaming devices of the present invention.

4a, 4b, 4c, 4d, 4e, and 4f are respectively a method of joining the six expansion devices and the covering device of the vertebral reaming device of the present invention.

5a and 5b are schematic views showing a preferred embodiment of the disintegration and coupling between the deployment device and the coating device of the vertebral reaming device of the present invention.

6a and 6b are schematic views showing the disassembly and assembly between the deployment device and the coating device of the vertebral reaming device of the present invention.

7a, 7b, and 7c are schematic views showing the surgical procedure of the vertebral reaming device of the present invention.

1a is a schematic view of a preferred embodiment of a vertebral reaming device of the present invention. The coating device 200 completely covers the deployment device 110 and the hollow rod member 140 by the ball-like covering member 210 and the rod-shaped covering member 220, thereby preventing body tissues and the like from contacting the deployment device 110, and also by coating The device 200 blocks the broken bone in the vertebra, so that the deployment device 110 is not due to the intravertebral The broken bone is stuck, so that the deployment device 110 cannot be retracted to a contracted state, resulting in the deployment device being unable to withdraw from the vertebrae. The covering device 200 is coupled to the assisting and deploying device 120 by a connecting sleeve 310. The connecting device 310 is detachably coupled, and the covering device 200 is a detachable covering device 200. After the vertebral reaming device is used, The used coating device 200 can be detached from the expansion device 100, and the other expansion device 200 can be attached to the expansion device 100 for reuse. In addition, the unfolding device 110 has a circular arc convex portion 118, and the top end of the circular arc convex portion 118 has an arc shape, which avoids puncturing and breaking the covering device 200 when the covering device 200 is disassembled, and the front end of the covering device 200 has A projection 211 having a thickness slightly thicker than other portions of the covering device 200 for supporting the pressure from the arcuate projection 118 of the deployment device 110 (see Figs. 5a, 5b). The assisting deployment device 120 expands or contracts the deployment device 110 in a push or pull manner, allowing the deployment device 110 to expand the coating device 200 in the vertebra and create a space in the vertebra to facilitate subsequent placement of the bone. A fixation device or a procedure for perfusion of a medical filler. The connecting sleeve 310 for connecting the covering device 200 and the assisting and unwinding device 120 may also be a fixed connection, and only an unremovable engaging structure or fastening structure may be added to the connecting sleeve 310.

FIG. 1b is a schematic exploded view of a preferred embodiment of a vertebral reaming device according to the present invention. There is a detachable connecting mechanism 300 between the covering device 200 and the assisting and unwinding device 120. The annular protruding portion 230 of the covering device 200 in the detachable connecting mechanism 300 has a fixing hole 231 for assisting deployment. The fixing bumps 322 on the joint end 320 of the device 120 are coupled to prevent the sliding device from rotating or rotating between the assisting device 120 and the covering device 200, and further utilizing the connecting sleeve The bump engaging member 311 of the member 310 is engaged with the fixing groove 321 of the joint end 320 to fix the covering member 200 to the assist developing device 120. The detachable connection mechanism 300 between the coating device 200 and the assisting deployment device 120 is such that the coating device 200 is a detachable coating device 200, and the vertebral reaming device can be used after being used. The coating device 200 is detached from the expansion device 100, and another coating device 200 is attached to the expansion device 100 to be reusable. And the connection position of the detachable connection mechanism 300 is located outside the body during the operation.

2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 2j, 2k, 2l, 2m, 2n, 2o are schematic diagrams showing a preferred embodiment of the deployment device of the vertebral reaming device of the present invention. Fig. 2a shows a four-piece lantern-like deployment device 111 in a contracted state. Figure 2b shows a four-piece lantern-like deployment device 111 in an unfolded state. Fig. 2c shows a four-piece lantern-like deployment device 111 having a contracted state of the slit 112 and the slot 113. Fig. 2d shows that the four-piece lantern-like deployment device 111 is in an unfolded state by the configuration of the slit 112 and the slot 113. Figure 2e shows a two-piece lantern-like deployment device 111 in a collapsed state. Figure 2f shows a two-piece lantern-like deployment device 111 in an unfolded state. Figure 2g shows a strip-like deployment device 114 in a contracted state. Figure 2h shows a strip-like deployment device 114 in an unfolded state. Figure 2i shows the hoist-type strip deployment device 114 in an unfolded state. Fig. 2j shows a plate-like deployment device 115 in a contracted state. Figure 2k shows the deployment of the plate-like deployment device 115 to the deployed state by means of the deployment bar 116. Fig. 21 shows a blade type deployment device 117 in a contracted state. Fig. 2m shows a blade type deployment device 117 in an unfolded state. Figure 2n shows the deployment device 110 in a contracted state. Figure 2o shows the deployment device 110 being deployed to the deployed state by the deployment lever 116.

3a, 3b, 3c, 3d, 3e, 3f, 3g, and 3h are schematic diagrams showing preferred embodiments of the four types of vertebral reaming devices of the present invention. 3a, 3b show that the assisting deployment device 120, by the relative movement between the lever 130 and the hollow rod 140, expands the deployment device 110 from the contracted state (as shown in Figure 3a) to the deployed state (Fig. 3b). Shown). Figures 3c, 3d show: pulling the lever 130, by the relative movement between the lever 130 and the hollow rod 140, the deployment device 110 is deployed from the contracted state (as shown in Figure 3c) to the deployed state (as shown in Figure 3d). Show). Figures 3e, 3f show that the lever 130 is rotated and the lever 116 is rotated by the rotation of the rotating thread 119 on the lever, thereby expanding the lever member 116 to retract the plate-like deployment device 115 (Fig. 3e). Shown as expanded) (as shown in Figure 3f). Figures 3g, 3h show that the joystick 130 is rotated to deploy the blade-type deployment device 117 from the collapsed state (shown in Figure 3g) to the deployed state (as shown in Figure 3h).

4a, 4b, 4c, 4d, 4e, 4f are respectively six detachable joining mechanisms 300 of the vertebral reaming device of the present invention. 4a shows that the bump engaging member 311 of the joint kit 310 is engaged with the fixing groove 321 of the joint end 320 of the assisting and unwinding device 120, and the covering device 200 is fixed to the assisting and unwinding device 120. 4b shows that the engaging member 232 of the annular projection 230 of the covering member 200 is engaged with the engaging groove 323 in the engaging end 320 of the assisting and unwinding device 120 to fix the covering device 200 to the assisting deployment device 120. . 4c shows that the engaging member 232 of the annular projection 230 of the covering member 200 is engaged with the engaging groove 323 in the engaging end 320 of the assisting and unwinding device 120 to fix the covering device 200 to the assisting deployment device 120. . 4d shows that the engagement hole 312 of the joint end 310 is engaged with the engagement protrusion 324 of the joint end 320, The wrapping device 200 is fixed to the assisting deployment device 120. 4e shows that the annular groove 233 of the annular convex portion 230 of the coating device 200 is engaged with the annular projection 325 of the joint end 320, and further utilizes the joint end 320 of the coating device 200 and the joint assembly 310. The screwing is performed to fix the wrapping device 200 to the assisting deployment device 120. 4f shows that the wrapping device 200 is fixed to the assisting deployment device 120 by the latch 313 of the coupling kit 310 engaged with the engaging blade 326 of the coupling end 320. The above-mentioned connection manner may also be a fixed connection. Those skilled in the art may modify the above structure, such as adding a snap or snap mechanism to make it a fixed connection.

5a and 5b are schematic views showing a preferred embodiment of the disintegration and coupling between the deployment device and the coating device of the vertebral reaming device of the present invention. The deployment device 110 has a circular arc convex portion 118. The top end of the circular arc convex portion 118 has an arc shape, which avoids puncturing the coating device 200 when the covering device 200 is disassembled. The front end of the covering device 200 has a convex shape. The protrusion 211 has a thickness slightly thicker than the thickness of other portions of the coating device 200 for supporting the pressure from the arcuate projection 118 of the deployment device 110.

6a and 6b are schematic views showing the disassembly and assembly between the distracting device and the covering device of the vertebral reaming device of the present invention. By means of the detachable connecting mechanism 300 between the distracting device 100 and the connecting sleeve 310, the covering device 200 is made into a detachable covering device 200, and the vertebral reaming device can be used after being used. The device 200 is detached and mounted on the slinging device with another wrapping device 200 for reusability.

7a, 7b, and 7c are schematic views showing the surgical procedure of the vertebral reaming device of the present invention. Figure 7a shows: the coating device 200 and the deployment device 110, The tube 400 is placed in the vertebra 500. FIG. 7b shows that the deployment device 110 is deployed by the assist deployment device 120, and the deployment device 110 distracts the bulb-like covering member 210 to create a space 600 in the vertebra 500. Fig. 7c shows that the deployment device 110 is contracted by the assist deployment device 120, and the coating device 200 and the deployment device 110 are removed from the vertebra 700, and the space 600 created after the reaming is visible.

100‧‧‧Opening device

110‧‧‧Expanding device

118‧‧‧Arc convex

120‧‧‧Assist in the deployment of the device

140‧‧‧ hollow rods

200‧‧‧Covering device

210‧‧‧ type ball cover parts

211‧‧‧ protruding parts

220‧‧‧ rod-shaped covering parts

310‧‧‧Link kit

Claims (15)

The vertebral reaming device of the present invention comprises: a distracting device having a manipulation mechanism at a proximal end thereof and a deployment device at the distal end, wherein the deployment device adjusts the deployment device to an expanded state or a contracted state by the manipulation mechanism; a covering device, the distal end of the covering device is used to cover the unfolding device, so that the distal end of the covering device is adjusted from the contracted state to the deployed state to create a space in the vertebra; and a connecting mechanism, the connecting mechanism For connecting the proximal end of the covering device and the distracting device, wherein the connecting mechanism is located outside the body during the operation. The vertebral reaming device according to claim 1, wherein the distracting device comprises: an unfolding device; a joystick having a proximal end of the operating rod at one end and a distal end of the operating rod at the other end The end is coupled to the deployment device; and an assist deployment device having a control end at one end and a coupling end at the other end, wherein the manipulation end of the assist deployment device is coupled to the proximal end of the joystick for the assist deployment device to utilize the joystick Adjusting the unfolding device to an unfolded state or a contracted state, the engaging end of the assisting and deploying device and the proximal end of the covering device having a connecting mechanism for connecting the assisting deployment device and the covering device; The covering device is used to cover the operating lever and the unfolding device. The vertebral reaming device of claim 1, wherein the joining mechanism is a detachable joining mechanism. The vertebral reaming device of claim 2, wherein the joining mechanism is a detachable joining mechanism. The vertebral reaming device of claim 2 or 4 further comprising a hollow rod member having a proximal end at one end and a distal end at the other end, wherein the proximal end of the hollow rod member is coupled to the assisting deployment device The distal end of the hollow rod is coupled to the proximal end of the deployment device, and the deployment device controls the deployment device to adjust to an expanded state or a contracted state by a relative stretching motion of the hollow member and the lever . The vertebral reaming device of claim 2, wherein the proximal end of the covering device has an annular projection for engaging the engaging end of the assisting deployment device. The vertebral reaming device of claim 6, wherein the annular convex portion has a snapping member for forming a detachable coupling mechanism with the engaging end of the assisting deployment device. The vertebral reaming device of claim 4, wherein the attachment mechanism has a connection kit, and the attachment assembly is coupled to the assisted deployment device The joint end forms a detachable joint mechanism for joining the covering device and the assisting deployment device. The detachable joint mechanism is any conventional detachable joint mechanism such as snapping, screwing or snapping. The vertebral reaming device of claim 1 or 2, wherein the joining mechanism is a snap, a screw or a snap. The vertebral reaming device of claim 3, wherein the detachable attachment mechanism is a snap, a screw or a snap. The vertebral reaming device according to claim 1, 2, 3 or 4, wherein the covering device is made of polyurethane, silicone or nylon. The vertebral reaming device according to claim 1, 2, 3 or 4, wherein the covering device is a spherical coating device, a ball-like coating device, a hoist-type coating device or a square coating device. . The vertebral reaming device of claim 1, 2, 3 or 4, wherein the deployment device is a lantern-like deployment device. The vertebral reaming device of claim 1, 2, 3 or 4, wherein the distal end of the deployment device has a circular arc projection. The vertebral reaming device of claim 1, 2, 3 or 4, wherein the distal end of the covering device has a projection at the distal end.