Auxiliary tool for transversely placing fusion cage in lumbar vertebra ULIF operation
By designing an auxiliary tool for transverse placement of the fusion cage during lumbar ULIF surgery, and using adjustable extension rods and clamps to precisely position the fusion cage, the problems of poor fusion cage placement and nerve injury in existing technologies have been solved, thereby improving the lumbar fusion rate and surgical safety.
Patent Information
- Application Number
- CN202422729726.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The lack of specialized transverse placement tools for lumbar ULIF surgery leads to problems such as poor fusion device placement, high risk of nerve injury, low fusion rate, and high revision rate.
A transverse placement auxiliary tool for lumbar ULIF fusion device was designed, including a handle, connecting seat, extension rod, clamp, and servo motor driven rotating head. The fusion device is precisely positioned by the adjustable extension rod and clamp, and the operation accuracy and safety are improved by combining a cylinder and a rubber waist ring.
It achieves precise positioning and safe operation of the fusion device, reduces the risk of nerve injury, improves the fusion rate and surgical outcome, and reduces the revision rate.
Smart Images
Figure CN223504381U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical auxiliary instrument technical field more specifically, the utility model relates to a kind of transverse auxiliary tools of fusion cage in lumbar ULIF operation. BACKGROUND
[0002] Lumbar ULIF operation is the mainstream minimally invasive operation of lumbar fusion. In order to provide better initial stability, the operator needs to place the fusion cage horizontally or insert double fusion cages in the intervertebral space. However, due to the lack of a special fusion cage horizontal placement tool for minimally invasive surgery, a common rod is usually used as a substitute. The problem with the rod is that it cannot be effectively fixed, and it is easy to injure the nerve during hammering and to cause poor fusion cage placement. This further leads to a decrease in lumbar fusion rate, poor clinical efficacy, intervertebral non-fusion after surgery, and an increase in revision rate. SUMMARY
[0003] To overcome the shortcomings of the prior art, the utility model provides a transverse auxiliary tool of fusion cage in lumbar ULIF operation, which has the advantage of more precise operation.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a transverse auxiliary tool of fusion cage in lumbar ULIF operation, comprising a handle, a connecting seat, an extension rod, and a clamping seat. The handle, the connecting seat, and the extension rod are all cylindrical in structure. A connecting rod is provided at one end of the handle. A sleeve is mounted at one end of the connecting rod. An extension column is provided at one end of the connecting seat. The extension column is connected to the sleeve. A rotating support is provided at the other end of the connecting seat. A rotating head is provided at one end of the extension rod. The rotating head is mounted in the rotating support through a rotating shaft. A fixing seat is provided at the other end of the extension rod. The clamping seat is mounted in the fixing seat. An installation plate is provided on the clamping seat. Two clamping blocks are oppositely provided on the installation plate. A clamping groove is formed between the oppositely provided clamping blocks. The clamping groove is connected to the fusion cage. A switch seat is provided on the side of the connecting rod. A plurality of groups of buttons are provided on the switch seat. A controller is embedded in the handle. The buttons are electrically connected to the controller.
[0005] As a preferred technical scheme of the utility model, one end of the rotating head is provided with a semicircular structure, and a tooth belt is uniformly provided on the outside of the semicircular structure. A drive gear is provided between the rotating supports. The drive gear is meshed with the tooth belt. The drive gear is driven by a servo motor embedded in the rotating support.
[0006] As a preferred technical scheme of the utility model, a pneumatic cylinder is provided in the sleeve. The extension column is connected to the output end of the pneumatic cylinder. The pneumatic cylinder is electrically connected to the controller. A plurality of groups of waist rings are uniformly provided on the outside of the handle. The waist rings are made of rubber material.
[0007] As a preferred technical scheme of the utility model, the fixed seat is provided with a screw hole, the clamping seat is provided with a stud in cooperation, and the stud is connected to the screw hole through a threaded structure.
[0008] As a preferred technical scheme of the utility model, the clamping block is provided with a triangular reinforcing plate on the opposite side, the top of the opposite side of the clamping block is provided with an inclined guide surface, and a buffer pad is arranged on the clamping block, and the buffer pad is made of rubber material.
[0009] As a preferred technical scheme of the utility model, the middle position of the mounting plate is provided with a push tube, and a push head is arranged in the push tube through an electric push rod.
[0010] Compared with the prior art, the utility model has the beneficial effects as follows: the utility model can adjust the extension rod, the extension rod can be mutually curved at different angles with the handle, so as to meet the use requirement in the operation, one end of the handle is used for hand holding of the user, and the other end is clamped with the fusion cage to drive the movement of the fusion cage. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the utility model;
[0012] Figure 2 It is an assembly schematic view of the connecting seat and the extension rod of the utility model;
[0013] Figure 3 It is Figure 2 It is an enlarged view of structure A;
[0014] Figure 4 It is a clamping seat structural schematic view of the utility model;
[0015] In the figure: 1, handle; 11, connecting rod; 12, sleeve; 13, switch seat; 14, waist ring; 2, connecting seat; 21, telescopic column; 22, rotating support; 3, extension rod; 31, rotating head; 32, fixed seat; 33, toothed belt; 34, screw hole; 4, clamping seat; 41, mounting plate; 42, clamping block; 43, push tube; 44, push head; 45, buffer pad; 46, guide surface; 47, reinforcing plate; 5, driving gear; 6, button. DETAILED DESCRIPTION
[0016] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0017] like Figures 1 to 4 As shown, this utility model provides a transverse placement auxiliary tool for a lumbar ULIF fusion device, comprising: a handle 1, a connecting seat 2, an extension rod 3, and a clamp 4. The handle 1, connecting seat 2, and extension rod 3 are all cylindrical. A connecting rod 11 is provided at one end of the handle 1, and a sleeve 12 is installed at one end of the connecting rod 11. A telescopic column 21 is provided at one end of the connecting seat 2, and the telescopic column 21 is connected to the sleeve 12. A rotating bracket 22 is provided at the other end of the connecting seat 2, and a rotating head 31 is provided at one end of the extension rod 3. The rotating head 31 is mounted in the rotating bracket 22 via a rotating shaft; the other end of the extension rod 3 is provided with a fixed seat 32, the clamp 4 is mounted in the fixed seat 32, the clamp 4 is provided with a mounting plate 41, and two clamping blocks 42 are arranged opposite each other on the mounting plate 41, forming a clamping groove between the oppositely arranged clamping blocks 42, and the clamping groove is engaged with the fusion device; the side of the connecting rod 11 is provided with a switch seat 13, and several sets of buttons 6 are provided on the switch seat 13; the handle 1 is embedded with a controller, and the buttons 6 are electrically connected to the controller.
[0018] The handle 1 is for the user to hold, and one end is connected to a sleeve 12 via a connecting rod 11. The connecting seat 2 is installed in the sleeve 12 via a telescopic column 21, allowing for length adjustment. The extension rod 3 is installed on the rotating bracket 22 of the connecting seat 2 via a rotating head 31, allowing for angle adjustment by rotation. The clamp 4 is installed on the fixed seat 32, and can rotate and move together with the extension rod 3 to change its position and angle. The clamp 4 is provided with clamping blocks 42 via a mounting plate 41, and the clamping blocks 42 form a clamping groove to engage with the fusion unit. The button 6 can send commands to the controller to achieve the corresponding control effect.
[0019] The rotating head 31 has a semi-circular structure at one end, and toothed belts 33 are evenly arranged on the outer side of the semi-circle; a drive gear 5 is arranged between the rotating brackets 22, and the drive gear 5 meshes with the toothed belts 33; the drive gear 5 is driven by a servo motor embedded in the rotating bracket 22.
[0020] The servo motor drives the drive gear 5 to rotate, which in turn meshes with the toothed belt 33, causing the rotating head 31 to rotate, thereby changing the angle of the extension rod 3 for use.
[0021] The sleeve 12 is equipped with a cylinder, the telescopic column 21 is connected to the output end of the cylinder, and the cylinder is electrically connected to the controller; the handle 1 is uniformly provided with several sets of waist rings 14, which are made of rubber material.
[0022] The cylinder drives the telescopic column 21 to move, thereby adjusting the distance between the connecting seat 2 and the handle 1 and changing the overall length for use; the waist ring 14 improves the grip experience and makes it easier to grip more tightly.
[0023] The fixed base 32 is provided with a screw hole 34, and the clamp 4 is provided with a stud, which is connected to the screw hole 34 by a threaded structure.
[0024] The clamp 4 is installed by threaded installation. After installation, the structure is stable and can be disassembled, making it convenient to replace the clamp 4 for inspection and maintenance.
[0025] The clamping block 42 has a triangular reinforcing plate 47 on one side opposite to the clamping block 42, an inclined guide surface 46 on the top of the opposite side of the clamping block 42, and a buffer pad 45 made of rubber material on the clamping block 42.
[0026] The reinforcing plate 47 increases the structural strength between the clamping block 42 and the mounting plate 41. The guide surface 46 facilitates the fusion unit's insertion into the slot. The buffer pad 45 prevents direct rigid contact between the fusion unit and the clamping block 42, thus providing buffer protection.
[0027] The mounting plate 41 has a push tube 43 in the middle position, and a push head 44 is installed in the push tube 43 through an electric push rod.
[0028] The electric push rod can drive the push head 44 to extend outward, thereby pushing the installed fusion unit outward and separating it from the clamp 42, making it easier to separate the fusion unit from the whole at the end.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A transverse placement auxiliary tool for lumbar ULIF fusion device, characterized in that, The assembly includes: a handle (1), a connecting seat (2), an extension rod (3), and a clamp (4). The handle (1), connecting seat (2), and extension rod (3) are all cylindrical. A connecting rod (11) is provided at one end of the handle (1), and a sleeve (12) is installed at one end of the connecting rod (11). A telescopic column (21) is provided at one end of the connecting seat (2), and the telescopic column (21) is connected to the sleeve (12). A rotating bracket (22) is provided at the other end of the connecting seat (2), and a rotating head (31) is provided at one end of the extension rod (3). The rotating head (31) rotates... The shaft is installed in the rotating bracket (22); the other end of the extension rod (3) is provided with a fixed seat (32), the clamp (4) is installed in the fixed seat (32), the clamp (4) is provided with a mounting plate (41), two clamping blocks (42) are arranged opposite to each other on the mounting plate (41), and a clamping groove is formed between the opposite clamping blocks (42), and the clamping groove is engaged with the fusion device; the side of the connecting rod (11) is provided with a switch seat (13), and several sets of buttons (6) are provided on the switch seat (13); the handle (1) is embedded with a controller, and the buttons (6) are electrically connected to the controller.
2. The lateral placement auxiliary tool for lumbar ULIF intraoperative fusion device according to claim 1, characterized in that: One end of the rotating head (31) is configured as a semi-circular structure, and toothed belts (33) are evenly arranged on the outer side of the semi-circle; a drive gear (5) is arranged between the rotating brackets (22), and the drive gear (5) meshes with the toothed belt (33); the drive gear (5) is driven by a servo motor embedded in the rotating bracket (22).
3. The lateral placement auxiliary tool for lumbar ULIF intraoperative fusion device according to claim 1, characterized in that: A cylinder is provided inside the sleeve (12), the telescopic column (21) is connected to the output end of the cylinder, and the cylinder is electrically connected to the controller; several sets of waist rings (14) are evenly arranged on the outside of the handle (1), and the waist rings (14) are made of rubber material.
4. The lateral placement auxiliary tool for lumbar ULIF intraoperative fusion device according to claim 1, characterized in that: The fixed base (32) is provided with a screw hole (34), and the clamp (4) is provided with a stud. The stud is connected to the screw hole (34) through a threaded structure.
5. The lateral placement auxiliary tool for lumbar ULIF intraoperative fusion device according to claim 1, characterized in that: A triangular reinforcing plate (47) is provided on the opposite side of the clamping block (42), an inclined guide surface (46) is provided on the top of the opposite side of the clamping block (42), and a buffer pad (45) is provided on the clamping block (42), the buffer pad (45) being made of rubber material.
6. The lateral placement auxiliary tool for lumbar ULIF intraoperative fusion device according to claim 1, characterized in that: A push tube (43) is provided in the middle of the mounting plate (41), and a push head (44) is installed inside the push tube (43) via an electric push rod.