Nucleus pulposus forceps

Abstract

The utility model relates to the technical field of nucleus pulposus forceps, and discloses nucleus pulposus forceps which comprise an outer forceps rod and a core rod which are connected with forceps handles, the core rod is movably inserted in the outer forceps rod, and a connecting block is fixedly connected to the front end of the core rod. A first assembly hole is formed in the movable tong head and used for being hinged to the connecting block through a floating rotating shaft, and a second assembly hole is further formed in the movable tong head. The structure formed by the outer forceps rod, the movable forceps head and the floating rotating shaft has better wrapping and clamping performance on soft tissues and blood vessels during clamping action, and is better in inclusiveness, convenient to clamp and not easy to cut off.

Description

Technical Field

[0001] The utility model relates to the technical field of nucleus pulposus forceps, in particular to a nucleus pulposus forceps. Background Art

[0002] The existing patent CN219480239U provides a nucleus pulposus forceps, including a channel for receiving the tissue in the bite cavity; a crushing part for crushing the tissue in the bite cavity; a power motor connected to the crushing part for providing power to the crushing part; and a conveying part for providing force for the tissue entering the channel to be transferred to the outside of the channel. As the surgical operation proceeds, more and more tissues will gradually enter the channel, which can temporarily store the tissues and further transfer them to the outside of the nucleus pulposus forceps driven by the conveying part. The instrument can remove the nucleus pulposus and other soft tissues in one go after entering the body, and can avoid directly removing the nucleus pulposus forceps from the human body after each separation of tissues. While improving the surgical efficiency, it can also avoid the risk of infection caused by the nucleus pulposus forceps entering and exiting the human body many times.

[0003] However, the structural design of the forceps head is rather unreasonable. The plane angle design makes it very easy to fall off when clamping soft tissues or blood vessels, and the clamping force is unstable. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the above problems, a nucleus pulposus forceps is provided, which solves the above problems.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A nucleus pulposus forceps comprises an outer forceps rod and a core rod connected to the forceps handle, wherein the core rod is movably inserted into the outer forceps rod and a connecting block is fixedly connected to the front end of the core rod, a first assembly hole is provided on the movable forceps head for being hinged to the connecting block by a floating shaft, and a second assembly hole is also provided on the movable forceps head, the second assembly hole and the front end of the outer forceps rod are hinged by a first shaft, when the core rod is pulled backward, the movable forceps head rotates with the first shaft as the hinge shaft under the pulling action of the floating shaft, thereby opening the jaws, and when the core rod is pushed forward, the jaws are closed.

[0007] Preferably, a completely penetrating retraction groove is provided at the front end of the outer clamp rod, which facilitates the retraction of the lower end of the movable clamp head when the movable clamp head moves and facilitates subsequent cleaning.

[0008] Preferably, a circular arc-shaped lower cutout is provided at the upper end of the outer clamp rod, so as to facilitate avoidance when clamping a blood vessel and reduce excessive squeezing of the blood vessel.

[0009] Preferably, an upper digging opening corresponding to the lower digging opening is provided on the movable jaw head, so as to form a cavity with the lower digging opening for fixing blood vessels.

[0010] Preferably, arc openings symmetrical left and right are provided at the front end of the outer clamp rod, facilitating rapid positioning of blood vessels during clamping.

[0011] Preferably, the core rod and the outer clamp rod are in clearance fit.

[0012] The advantages and positive effects of the present utility model are as follows: The structure formed by the outer clamp rod, the movable jaw head, and the floating rotating shaft has better wrapping and clamping performance for soft tissues and blood vessels during the clamping action, and has better inclusiveness, is convenient to clamp, and is not easy to cut off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the present utility model;

[0016] Figure 3 is Figure 1 an enlarged schematic structural diagram of the movable jaw head 12 in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0018] The following will further describe the embodiments of the present utility model in detail with reference to the drawings:

[0019] As Figures 1-3 shown, a nucleus pulposus forceps of the present utility model includes an outer clamp rod 10 and a core rod 11 connected to a clamp handle (the structure of the clamp handle is the same as that of the prior art and is not shown). The core rod 11 is movably inserted into the outer clamp rod 10, and a connection block 21 is fixedly connected to the front end of the core rod 11. A first assembly hole 15 is provided on the movable jaw head 12 for being hinged to the connection block 21 by a floating rotating shaft 14. A second assembly hole 16 is also provided on the movable jaw head 12. The second assembly hole 16 and the front end of the outer clamp rod 10 are hinged by a first rotating shaft 13. When the core rod 11 is pulled backward, the movable jaw head 12 rotates with the first rotating shaft 13 as the hinge rotating shaft under the pulling action of the floating rotating shaft 14, thereby opening the clamp mouth. When the core rod 11 is pushed forward, the clamp mouth is closed.

[0020] Preferably, a completely penetrating retraction groove 19 is provided at the front end of the outer clamp rod 10, which facilitates the retraction of the lower end of the movable clamp head 12 when it moves and is also convenient for subsequent cleaning.

[0021] Preferably, an arc-shaped downward excavation 17 is provided at the upper end of the outer clamp rod 10, which is convenient for avoiding when clamping blood vessels and reduces excessive squeezing of the blood vessels.

[0022] Preferably, an upward excavation 20 corresponding to the downward excavation 17 is provided on the movable clamp head 12, so as to form a cavity with the downward excavation 17 for fixing blood vessels.

[0023] Preferably, symmetric arc-shaped openings 18 are provided at the front end of the outer clamp rod 10, which are convenient for quickly positioning blood vessels during clamping.

[0024] Preferably, the core rod 11 and the outer clamp rod 10 are in clearance fit.

[0025] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific embodiments. Any other embodiments obtained by those skilled in the art according to the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A nucleus pulposus forceps, characterized in that: The invention comprises an outer clamp rod (10) and a core rod (11) connected to a clamp handle, wherein the core rod (11) is movably inserted into the outer clamp rod (10) and a connecting block (21) is fixedly connected to the front end of the core rod (11); a first assembly hole (15) is provided on the movable clamp head (12) for being hinged to the connecting block (21) by a floating shaft (14); a second assembly hole (16) is also provided on the movable clamp head (12); the second assembly hole (16) and the front end of the outer clamp rod (10) are hinged by a first shaft (13); when the core rod (11) is pulled backward, the movable clamp head (12) rotates with the first shaft (13) as the hinge shaft under the pulling action of the floating shaft (14), thereby opening the jaws; when the core rod (11) is pushed forward, the jaws are closed.

2. A nucleus pulposus forceps according to claim 1, characterized in that: A completely penetrating retraction groove (19) is provided at the front end of the outer clamp rod (10), which facilitates the retraction of the lower end of the movable clamp head (12) when the movable clamp head (12) moves, and facilitates subsequent cleaning.

3. A nucleus pulposus forceps according to claim 2, characterized in that: A circular arc-shaped lower cutout (17) is provided at the upper end of the outer clamp rod (10) to facilitate avoidance when clamping a blood vessel and reduce excessive squeezing of the blood vessel.

4. A nucleus pulposus forceps according to claim 3, characterized in that: An upper cutout (20) corresponding to the lower cutout (17) is provided on the movable clamp head (12), so that an upper cutout (20) is formed with the lower cutout (17) to fix the blood vessel.

5. A nucleus pulposus forceps according to claim 4, characterized in that: A left-right symmetrical arc opening (18) is provided at the front end of the outer clamp rod (10), so as to facilitate rapid positioning of the blood vessel during clamping.

6. A nucleus pulposus forceps according to claim 5, characterized in that: The core rod (11) and the outer clamp rod (10) are clearance-fitted.

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