Aspirator for preventing spinal nerve injury
By introducing elastic buffer tube and dredging rod structure into the suction device, the damage to the spinal dura and nerve roots of the suction device in spinal surgery and the prevention of screen blockage and screen blockage are solved, and safer and more efficient spinal nerve operation is achieved.
Patent Information
- Application Number
- CN202420427868.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-06
AI Technical Summary
Existing suction devices are prone to damage the spinal cord dural and nerve roots during spinal surgery, and the anti-blocking screen is easily blocked by small bone fragments or blood clots, affecting the progress of the surgery.
A suction device for preventing spinal cord nerve damage was designed, using elastic buffer tube and dredging rod structure. The elastic buffer tube provides buffering when the suction head contacts the spinal cord dura and nerve root to prevent damage; leakage between dredging rod and anti-blocking screen The holes correspond one by one to avoid blockage and clear leakage holes if necessary.
It effectively reduces the contact force between the suction head and the spinal cord dural and nerve roots, avoids nerve damage, and solves the problem of anti-blocking screen blockage through the unblocking rod, improving the operation efficiency of the operation.
Smart Images
Figure CN222238431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to an aspirator for preventing spinal cord nerve damage. Background Art
[0002] Existing suction devices are often difficult to control during use. After long-term use, the tip of the suction device often becomes deformed, cracked, or burred. Especially in spinal surgery, the spinal nerve roots often need to be exposed. During the suction process, the spinal dura mater and nerve roots will inevitably be touched, which can easily damage the dura mater and nerves, and even cause dura mater rupture, cerebrospinal fluid leakage, and damage to the spinal cord or cauda equina.
[0003] For example, the patent number CN201701546U discloses a suction device for preventing spinal cord nerve damage. The suction device is a hollow cylinder with a length of 20-25cm and a diameter of 5-8cm. A soft material is used in the part of the head 1 of the suction device that is at least 5mm long from the top port. The soft material can be a silicone tube or a rubber tube or a disposable polymer material. A pressure relief hole 3 can be set at the tail of the suction device, and a thread 4 can be set at the tail end to make the connection fit tightly when receiving negative pressure. An anti-blocking screen 2 is provided at the head of the suction device 3-5mm away from the top port, and the sieve aperture of the anti-blocking screen 2 is 1.5-2.5mm.
[0004] In the above scheme, a soft head is proposed to prevent spinal cord nerve damage, and an anti-blocking screen is used to avoid blockage inside the aspirator. However, in the actual use process, CN201701546U found that the leakage holes of the anti-blocking screen are easily blocked by small bone fragments or blood clots. Once blocked, it is inconvenient to clean up and affect the progress of the operation. Therefore, an aspirator for preventing spinal cord nerve damage is proposed. Utility Model Content
[0005] In view of the above-mentioned problems existing in the existing suction device for preventing spinal cord nerve damage, the present utility model is proposed.
[0006] Therefore, the purpose of the utility model is to provide a suction device for preventing spinal cord nerve damage, which solves the problems raised by the background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A suction device for preventing spinal cord nerve damage comprises a suction tube and a suction head, wherein an elastic buffer tube is fixedly provided at the front end of the suction tube, an end of the elastic buffer tube away from the suction tube is fixedly connected to the suction head, and an anti-blocking screen is fixedly provided inside the suction head; a plurality of evenly distributed fixing rods are fixedly provided inside the front end of the suction tube, and a plurality of dredging rods are fixedly provided on the rod walls of the plurality of fixing rods.
[0009] Preferably, the side wall of the elastic buffer tube is arranged in an outward arc-shaped protrusion.
[0010] Preferably, the suction head is a silicone head, and the elastic buffer tube is a rubber elastic tube.
[0011] Preferably, the positions of the plurality of dredging rods are distributed in a one-to-one correspondence with the positions of the plurality of leakage holes of the anti-blocking screen, and the diameter of the dredging rods is smaller than the diameter of the leakage holes of the anti-blocking screen.
[0012] Furthermore, a connecting thread ring is fixedly provided at the tail of the suction tube.
[0013] Preferably, the suction tube and the dredging rod are both made of stainless steel.
[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0015] 1. The utility model is provided with an elastic buffer tube, so that when the suction head contacts the spinal dura mater and nerve roots, the elastic buffer tube is compressed and shrinks, which can provide a position buffer for the suction head, thereby avoiding the phenomenon of excessive external force causing nerve damage when the suction head contacts the spinal dura mater and nerve roots.
[0016] 2. The utility model is provided with a fixing rod and a dredging rod. When the suction head moves through the elastic buffer tube, the anti-blocking screen moves toward the dredging rod until the dredging rod is inserted into the interior of the anti-blocking screen. At this time, the leakage holes of the anti-blocking screen can be dredged to avoid blockage and improve the use efficiency. The length of the dredging rod is set not to extend to the outside of the suction head, so the dredging rod will not touch the spinal dura mater and nerve roots. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;
[0020] Figure 3 For the utility model Figure 2 Side view of the fixing rod and the dredging rod.
[0021] Description of reference numerals:
[0022] 1. Suction tube; 2. Suction head; 3. Elastic buffer tube; 4. Anti-blocking screen; 5. Fixing rod; 6. Clearing rod; 7. Connecting threaded ring. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0024] The utility model embodiment discloses a suction device for preventing spinal cord nerve damage.
[0025] The utility model provides Figure 1-2 The suction device shown in the figure is for preventing spinal nerve injury, including a suction tube 1 and a suction head 2. An elastic buffer tube 3 is fixedly provided at the front end of the suction tube 1. The end of the elastic buffer tube 3 away from the suction tube 1 is fixedly connected to the suction head 2. The side wall of the elastic buffer tube 3 is arranged with an outward arc-shaped protrusion. The suction head 2 adopts a silicone head, and the elastic buffer tube 3 adopts a rubber elastic tube. The silicone material can reduce the damage caused by contact with the spinal dura mater and nerve roots. When the suction head 2 contacts the spinal dura mater and nerve roots, the elastic buffer tube 3 is compressed and shrinks, which can provide a position buffering effect for the suction head 2, thereby avoiding the phenomenon that the suction head 2 contacts the spinal dura mater and nerve roots with excessive external force, causing nerve damage.
[0026] like Figure 2-3 As shown, an anti-blocking screen 4 is fixedly provided inside the suction head 2, and the anti-blocking screen 4 can filter out small bone fragments or blood clots to prevent the small bone fragments or blood clots from clogging the suction tube 1; a plurality of evenly distributed fixing rods 5 are fixedly provided inside the front end of the suction tube 1, and a plurality of unblocking rods 6 are fixedly provided on the rod walls of the plurality of fixing rods 5. The suction tube 1 and the unblocking rods 6 are both made of stainless steel, and the positions of the plurality of unblocking rods 6 are distributed in a one-to-one correspondence with the positions of the plurality of leakage holes of the anti-blocking screen 4, and the diameter of the unblocking rods 6 is smaller than the leakage hole diameter of the anti-blocking screen 4. When the suction head 2 moves through the elastic buffer tube 3, the anti-blocking screen 4 moves toward the unblocking rod 6 until the unblocking rod 6 is inserted into the internal leakage hole of the anti-blocking screen 4. At this time, the leakage hole of the anti-blocking screen 4 can be unblocked to avoid blockage. The length of the unblocking rod 6 here is set not to extend to the outside of the suction head 2, so the unblocking rod 6 will not touch the spinal dura mater and nerve roots.
[0027] like Figure 1 As shown, a connecting thread ring 7 is fixedly provided at the tail of the suction tube 1, and can be connected to an external negative pressure tube through the connecting thread ring 7.
[0028] When in use: first connect the tail of the suction tube 1 to the external negative pressure tube through the connecting threaded ring 7, and then insert the suction head 2 at the front end of the suction tube 1 until the suction head 2 contacts the spinal dura mater and nerve roots. Since the suction head 2 is made of silicone and is provided with an elastic buffer tube 3, the silicone material can reduce the damage caused by contact with the spinal dura mater and nerve roots. At the same time, when the suction head 2 contacts the spinal dura mater and nerve roots, the elastic buffer tube 3 is compressed and shrunk, which can provide a position buffer for the suction head 2 to avoid suction. When the guide head 2 contacts the spinal cord dura mater and nerve roots with excessive external force, causing nerve damage, when the suction head 2 moves through the elastic buffer tube 3, the anti-blocking screen 4 moves toward the dredging rod 6 until the dredging rod 6 is inserted into the internal leakage hole of the anti-blocking screen 4. At this time, the leakage hole of the anti-blocking screen 4 can be dredged. After the dredging is completed, the suction tube 1 is pulled outward for a certain distance, so that the elastic buffer tube 3 changes from the extruded state to the initial state. At this time, the dredging rod 6 automatically moves out of the leakage hole of the anti-blocking screen 4, which can ensure the suction operation.
[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A suction device for preventing spinal cord nerve damage, comprising a suction tube (1) and a suction head (2), characterized in that: An elastic buffer tube (3) is fixedly provided at the front end of the suction tube (1); an end of the elastic buffer tube (3) away from the suction tube (1) is fixedly connected to the suction head (2); and an anti-blocking screen (4) is fixedly provided inside the suction head (2); A plurality of evenly distributed fixing rods (5) are fixedly provided inside the front end of the suction tube (1), and a plurality of dredging rods (6) are fixedly provided on the rod walls of the plurality of fixing rods (5).
2. The suction device for preventing spinal cord injury according to claim 1, characterized in that: The side wall of the elastic buffer tube (3) is arranged in an outwardly arc-shaped protrusion.
3. The suction device for preventing spinal cord injury according to claim 1, characterized in that: The suction head (2) is a silicone head, and the elastic buffer tube (3) is a rubber elastic tube.
4. The suction device for preventing spinal cord injury according to claim 1, characterized in that: The positions of the plurality of dredging rods (6) are distributed and arranged in a one-to-one correspondence with the positions of the plurality of leakage holes of the anti-blocking screen (4), and the diameter of the dredging rods (6) is smaller than the diameter of the leakage holes of the anti-blocking screen (4).
5. The suction device for preventing spinal cord injury according to claim 1, characterized in that: A connecting threaded ring (7) is fixedly provided at the tail of the suction tube (1).
6. The suction device for preventing spinal cord injury according to claim 1, characterized in that: The suction tube (1) and the dredging rod (6) are both made of stainless steel.