CN220608373U - Spine endoscope inverted large-caliber biting forceps - Google Patents

Abstract

The utility model discloses a large-caliber inverted rongeur for a spinal endoscope, which comprises a rongeur type rongeur grabbing mechanism in an inverted manner in the spinal endoscope operation, wherein the inverted rongeur mechanism penetrates from an opening of the spinal endoscope, which is far away from a handle, and penetrates out from an opening, which is close to the handle; the tail side of the clamp mechanism is connected with the propelling mechanism, the propelling mechanism is provided with a mechanical connection which can be rapidly detached from the clamp mechanism, and the propelling mechanism is used for providing power for the clamp mechanism, so that the front end of the clamp mechanism is opened and closed. Different jaws are specially designed according to the needs and are respectively used for biting bones, grabbing marrow nuclei and bone fragments and cutting soft tissues. In the utility model, as the inverted forceps are provided, the opening of the forceps clamping part is not limited by the inner diameter of the endoscope, and the shape angle is more suitable for different application situations, so that the operation with higher efficiency than the operation of the existing rongeur with the biting and grabbing functions can be realized under the existing dimension of the spinal endoscope, thereby completing the operation more quickly.

Description

Spine endoscope inverted large-caliber biting forceps

Technical Field

The utility model relates to the technical field of spinal endoscopes, in particular to a large-caliber biting forceps for inversion of a spinal endoscope.

Background

With the development of minimally invasive techniques and the accumulation of surgical experience, minimally invasive spinal surgery has begun to gradually replace traditional spinal surgery.

In the spinal endoscope operation, a small-caliber nucleus pulposus forceps, rongeur forceps and basket forceps which can pass through an inner hole of the endoscope are required to be used for carrying out various corresponding treatment operations, and the treatment operations penetrate from the tail end of the spinal endoscope and penetrate out from the tail end of the spinal endoscope. Because the inner diameter of the spine endoscope is limited by smaller inner diameter, the common spine endoscope has only 3.7mm inner diameter, the inner diameter of the large-channel endoscope also has only 6.1mm, and in operation, the maximum width of various clamps in a closed state must be smaller than the aperture of the spine endoscope, otherwise, the spine endoscope cannot be penetrated into a treatment area. Thereby leading to the conditions of too small various forceps heads, low efficiency during operation, long time and easy damage.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a large-caliber biting forceps for a spine endoscope, which comprises a spine endoscope, wherein a forceps body is inserted backwards from an opening at the front end of the spine endoscope, the forceps body is connected with a handle, the forceps body can be driven to open and close by the handle, and the forceps body is inverted from the front end of the spine endoscope.

Preferably: the handle comprises a first grab handle and a second grab handle, the second grab handle is hinged with the first grab handle, and an elastic piece is arranged between the first grab handle and the second grab handle.

Preferably: the first grab handle upper portion is provided with the through-hole, and first mounting groove has been seted up to first grab handle upper end department, and first grab handle front end is provided with the retaining member.

Preferably: the upper end of the second grab handle is connected with a deflector rod, and the upper end of the first grab handle is connected with a movable rod in a sliding manner.

Preferably: the movable rod is provided with a limit groove corresponding to the deflector rod.

Preferably: the second mounting groove is formed in the lower end of the movable rod corresponding to the first mounting groove, and the first mounting groove and the second mounting groove are matched with each other to mount the clamp body.

Preferably: the pliers body comprises a first pliers handle and a second pliers handle, wherein the first pliers handle is embedded into the second pliers handle in a sliding manner or is designed as an external cylindrical internal moving rod.

Preferably: the right end of the first clamp handle is provided with a supporting part, and the left end of the first clamp handle is connected with a second clamp head.

Preferably: the second clamp head is provided with a sliding hole, a pin shaft is inserted into the sliding hole and connected with the first clamp handle, and springs are sleeved on the right sides of the second clamp handle and the first clamp handle.

Preferably: the second clamp handle is provided with a protruding portion, and the protruding portion cooperates with the supporting portion, carries out spacing to the spring.

The utility model has the technical effects and advantages that:

1. according to the utility model, the clamping mechanism is reversely arranged in the spinal endoscope, so that compared with the existing clamp penetrating from the opening of the spinal endoscope close to the handle and penetrating from the opening far away from the handle, the clamp has the advantages that the length and width of the opening are larger, the multi-angle design can be realized, and the lesion treatment and the extraction with larger size are convenient.

2. According to the utility model, the installation of the clamping mechanism can be realized without changing the size of the existing spinal endoscope, and the pathological change treatment and the taking out of a larger size can be finished by operating the propelling mechanism, so that the operation is more rapid and convenient.

Drawings

FIG. 1 is a schematic diagram of a structure of a large-caliber inverted rongeur for a spinal endoscope;

FIG. 2 is a cross-sectional view of the handle of the bite pliers provided herein;

FIG. 3 is a schematic view of the structure of the jaw body in the bite-cutting jaw provided in the present application; wherein (4.52.41.6) can pass through the inner hole of the endoscope, and the clamp body and the handle are suitable for all embodiments;

FIG. 4 shows a first embodiment of a clamp head for use in sawing free bone pieces with a special endoscope;

fig. 5 is a schematic view of a bone forceps according to a second embodiment;

fig. 6 is a schematic view of a third embodiment of a rongeur;

fig. 7 is a schematic structural view of a yellow ligament biting rongeur according to a fourth embodiment;

fig. 8 is a schematic view of a nucleus pulposus pliers according to another embodiment.

In the figure: 1. a spinal endoscope; 2. a handle; 21. a first handle; 211. a through hole; 212. a first mounting groove; 213. a locking member; 22. a second handle; 221. a deflector rod; 23. an elastic member; 24. a movable rod; 241. a limit groove; 242. a second mounting groove; 3. a clamp body; 4. a first clamp handle; 41. a support part; 5. a second clamp handle; 51. a clamping groove; 52. a boss; 53. a limiting hole; 6. a spring; 7. a first binding clip; 8. a second binding clip; 81. a slide hole; 82. and a pin shaft.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Referring to fig. 1 and 2, in this embodiment, a large caliber biting forceps for inversion of a spinal endoscope is provided, including a spinal endoscope 1, a forceps body 3 is inserted backward from an opening at the front end of the spinal endoscope 1, the forceps body 3 is connected with a handle 2, the forceps body 3 can be driven to open and close by the handle 2, the forceps body 3 is inverted from the front end of the spinal endoscope 1, and compared with the existing inverse installation from the rear to the front of the spinal endoscope 1, the volume of a forceps head can be increased, the occlusion area is increased, and further the operation efficiency is improved.

In this embodiment, the handle 2 includes a first grab handle 21 and a second grab handle 22, the second grab handle 22 is hinged to the first grab handle 21, an elastic piece 23 is installed between the first grab handle 21 and the second grab handle 22, the elastic piece 23 can be a metal elastic piece, a finger presses the second grab handle 22 to rotate anticlockwise, the elastic piece 23 is extruded and deformed, the finger is loosened, the second grab handle 22 resets under the action of the elastic piece 23, a through hole 211 is arranged on the upper portion of the first grab handle 21, the through hole 211 facilitates the rotation of the second grab handle 22, a first mounting groove 212 is formed in the upper end of the first grab handle 21, a locking piece 213 is arranged at the front end of the first grab handle 21, the upper end of the second grab handle 22 is connected with a deflector 221, a movable rod 24 is slidably connected with the upper end of the first grab handle 21, the movable rod 24 is connected with the first grab handle 21 through a chute, so that the movable rod 24 slides along the first grab handle 21, the movable rod 24 is not repeated in the prior art, a limiting groove 241 is formed in the movable rod 24 corresponding to the deflector rod 221, and when the second grab handle 22 rotates anticlockwise, the deflector rod 221 can rotate anticlockwise along the limiting groove 241, the clockwise, the rotating along the limiting groove 241, the rotating along the rotating direction, the rotating deflector rod 24 drives the rotating body, and moves along the movable rod 24 along the first grab handle 21, and moves away from the first grab handle 21 to the first mounting groove 242, and moves along the corresponding mounting groove 3, and the mounting groove 242, and moves along the mounting groove 3, and corresponding mounting groove.

In this embodiment, referring to fig. 3 and 4, the clamp body 3 includes a first clamp handle 4 and a second clamp handle 5, where the first clamp handle 4 is embedded in the second clamp handle 5 in a sliding manner or is designed as an external cylindrical internal moving rod, the right end of the first clamp handle 4 is provided with a supporting portion 41, the left end of the first clamp handle 4 is connected with a second clamp head 8, the second clamp head 8 is provided with a sliding hole 81, a pin 82 is inserted in the sliding hole 81, the pin 82 is connected with the first clamp handle 4, the right sides of the second clamp handle 5 and the first clamp handle 4 are sleeved with a spring 6, the second clamp handle 5 is provided with a protruding portion 52, the protruding portion 52 cooperates with the supporting portion 41 to limit the left and right directions of the spring 6, the spring 6 is prevented from being displaced in the left and right directions, the second clamp handle 5 is provided with a clamping groove 51 corresponding to the locking piece 213, the left end of the second clamp handle 5 is fixedly connected with the first clamp head 7, the second clamp handle 5 is provided with a limiting hole 53 corresponding to the second clamp head 8, and the second clamp head 8 is hinged with the second clamp handle 5.

After the forceps body 3 passes through the spinal endoscope 1 from the front end, the forceps body 3 is inserted into the first mounting groove 212 and the second mounting groove 242, the limiting groove 241 butts against the bottom wall of the first mounting groove 212, the clamping groove 51 moves to the locking part 213, the second forceps handle 5 and the first grab handle 21 are fixed through the locking part 213, when a finger presses the second grab handle 22, the movable rod 24 moves leftwards and pushes the first forceps handle 4 to move leftwards, the pin shaft 82 slides along the sliding hole 81, and then drives the second forceps head 8 to rotate anticlockwise, so that the second forceps head 8 and the first forceps head 7 are closed, the second grab handle 22 is loosened, and under the action of the spring 6 and the elastic part 23, the movable rod 24 and the second grab handle 22 are reset, so that the second forceps head 8 and the first forceps head 7 are opened.

Fig. 4 shows a first embodiment of a forceps head, wherein the special endoscope is used for removing free bone blocks under a circular saw, when the free bone blocks under the circular saw are removed under the conventional circular saw, a common nucleus pulposus forceps is used for substitution, the splayed opening of the bone blocks often causes difficulty in removing the bone blocks because the bone blocks are not easy to be deep into the side surfaces of the bone blocks in a working sheath, the special bone taking forceps head can be designed in a flip-chip forceps, the forceps head clamping parts of the special bone taking forceps head are provided with teeth, the movable clamps are arched, and the double clamps are almost parallel after the movable clamps are opened, so that the bone taking speed is increased by inserting the bone blocks into the side surfaces of the working sheath.

Fig. 5 shows a second embodiment, in which the bone forceps can be designed with two movable jaws on both sides of the forceps head, so as to facilitate the bone extraction from both sides of the bone block.

In other embodiments, due to the design principle of the inverted forceps, the forceps body forceps rod part can be inverted and inserted into a large-channel endoscope or a common endoscope, the forceps head is not limited by an inner hole of the endoscope, and the forceps head can be made larger and is suitable for passing through the inner diameter of a large-channel working sheath by 10mm or the inner diameter of a common endoscope working sheath by 6.5 mm.

The forceps head is designed differently according to different working situations, and is respectively provided with a longer and wider rongeur as shown in a third embodiment, a yellow ligament biting forceps as shown in a fourth embodiment, a fifth embodiment and a fifth embodiment, wherein the forceps head can be designed at multiple angles of 90 degrees, 110 degrees and the like, and is respectively suitable for biting bones, yellow ligament excision and nucleus grasping under different conditions.

The working principle of the utility model is as follows:

in the utility model, due to the design principle of the inverted forceps, the forceps body forceps rod part can be inverted and inserted into the large-channel endoscope or the common endoscope, the forceps head is not limited by the inner hole of the endoscope, and the forceps head can be made larger and is suitable for passing through the inner diameter of the large-channel working sheath by 10mm or the inner diameter of the common endoscope working sheath by 6.5 mm. The forceps head can be designed according to four different working conditions, namely rongeur, soft tissue rongeur, nucleus pulposus clamp and bone forceps, and can be designed at multiple angles, so that the forceps head is suitable for rongeur, yellow ligament excision, nucleus pulposus and bone block grabbing. Because under this principle, all binding clip increases size and multi-angle, work efficiency will be higher.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (10)

1. The utility model provides a spine endoscope flip-chip heavy-calibre rongeur, includes spine endoscope (1), its characterized in that follows spine endoscope (1) front end opening part backward cartridge has a pincers body (3), handle (2) are connected to pincers body (3), can drive pincers body (3) through handle (2) and open and close, pincers body (3) are from spine endoscope (1) front end flip-chip.

2. The large caliber inverted spine endoscope biting rongeur according to claim 1, wherein the handle (2) comprises a first grab handle (21) and a second grab handle (22), the second grab handle (22) is hinged with the first grab handle (21), and an elastic piece (23) is arranged between the first grab handle (21) and the second grab handle (22).

3. The large-caliber inverted rongeur for spinal endoscopes according to claim 2, wherein a through hole (211) is provided on the upper portion of the first grab handle (21), a first mounting groove (212) is provided at the upper end of the first grab handle (21), and a locking member (213) is provided at the front end of the first grab handle (21).

4. A spinal endoscope inverted large caliber biting cutting pliers according to claim 3, wherein the upper end of the second grab handle (22) is connected with a deflector rod (221), and the upper end of the first grab handle (21) is connected with a movable rod (24) in a sliding manner.

5. The large caliber inverted surgical rongeur for spinal endoscopes according to claim 4, wherein the movable rod (24) is provided with a limit groove (241) corresponding to the shift rod (221).

6. The large caliber biting and cutting pliers for the inversion of the spinal endoscope according to claim 5, wherein the lower end of the movable rod (24) is provided with a second installation groove (242) corresponding to the first installation groove (212), and the first installation groove (212) and the second installation groove (242) are matched with the pliers body (3).

7. The inverted large caliber rongeur of claim 1 wherein the jaw body (3) comprises a first jaw handle (4) and a second jaw handle (5), the first jaw handle (4) being of a sliding-in, inter-sliding, second jaw handle to second jaw handle (5) or of an external barrel-shaped, internal moving rod design.

8. The large caliber biting and cutting clamp for the inversion of the spinal endoscope according to claim 7, wherein the right end of the first clamp handle (4) is provided with a supporting part (41), and the left end of the first clamp handle (4) is connected with the second clamp head (8).

9. The large-caliber inverted rongeur for spinal endoscope according to claim 8, wherein the second forceps head (8) is provided with a sliding hole (81), a pin shaft (82) is inserted into the sliding hole (81), the pin shaft (82) is connected with the first forceps handle (4), and the right sides of the second forceps handle (5) and the first forceps handle (4) are sleeved with springs (6).

10. The large caliber rongeur for spinal endoscope flip-chip mounting according to claim 9, wherein the second forceps handle (5) is provided with a protruding part (52), and the protruding part (52) and the supporting part (41) cooperate to limit the spring (6).