Single-line lumbar intervertebral disc fibrous ring crevasse suture needle

Abstract

The invention provides a single-line lumbar intervertebral disc fibrous ring crevasse suture needle, and belongs to the technical field of medical instruments. According to the suture needle instrument, firstly, through the design that the screw sleeve rod is matched with the screw head, the suture needle sleeve is matched with the suture needle and then the two ends of the suture are fixedly connected to the screw head and the suture needle respectively, when medical staff use the needle instrument, firstly, the screw head is placed into the bone surface on one side of a fibrous ring crevasse, and then the screw head is separated from the screw sleeve rod in the axial direction; then, a suture needle penetrates from one side of the fiber ring crevasse to the other side of the fiber ring crevasse, and suture of the fiber ring crevasse is completed; compared with a suture needle which uses two sutures and the suture fixedly connected with the screw head needs to be knotted with a slipknot, the single-line lumbar intervertebral disc fibrous ring crevasse suture needle has the advantages that the operation is simpler, the suture is firmer, and the problems that in the prior art, the suture needle needs two sutures to be knotted and fixed, and the suture needle is inconvenient to use are solved. The operation is inconvenient; and the cut of the sewed fiber ring is easy to crack again.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a single-line lumbar intervertebral disc fiber ring tear suturing needle. Background Art

[0002] The Chinese utility model patent with the authorization announcement number CN221013356U records a needle for suturing a ruptured annulus of the lumbar intervertebral disc. The needle can be sutured by screwing and inserting a screw head, and the screw head can be easily inserted into the harder bone tissue. In clinical practice, it is particularly suitable for suturing the annulus fibrosus gap torn off from the vertebral surface (one side of the gap is bone tissue, and the other side is the annulus fibrosus soft tissue), solving the problem that ordinary needles cannot sew the annulus fibrosus torn off from the vertebral surface due to the harder vertebral tissue.

[0003] During the suturing process, the needle is used to insert the screw head into the bone surface on one side of the annulus fibrosus rupture by twisting the sleeve body, and then the sleeve body is axially separated from the screw head, and then the first suture slipknot head is knotted and fixed with the second suture on the other side of the annulus fibrosus rupture. The first suture refers to the suture fixed to the screw head, and the second suture is an ordinary suture.

[0004] During the suturing process, two sutures are needed, and the first suture fixed to the screw head needs to be tied with a slipknot; not only is it inconvenient to operate, but the knot between the two sutures is easy to loosen, causing the sutured fiber ring to rupture again, increasing the patient's chance of recurrence after surgery. Summary of the invention

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a single-line lumbar disc annulus fibrosus suture needle to solve the problem that the prior art suture needle requires two sutures to be knotted and fixed, which is not only inconvenient to operate, but also the sutured annulus fibrosus rupture is prone to rupture again, thereby increasing the patient's chance of recurrence after surgery.

[0006] To achieve the above-mentioned purpose and other related purposes, the present invention provides a single-line lumbar intervertebral disc annulus rupture suture needle, comprising: a screw head; a screw sleeve rod, the screw sleeve rod is fixedly connected to the screw head in the circumferential direction and can be detached from the screw head in the axial direction; a suture needle; a suture needle sleeve, the suture needle sleeve is fixedly connected to the suture needle in the circumferential direction and can be detached from the suture needle in the axial direction; a suture, one end of the suture is fixedly connected to the screw head, and the other end of the suture is fixedly connected to the suture needle; and the suture is provided with barbs.

[0007] Optionally, a non-magnetic first needle push rod and a magnetic second needle push rod are provided, and the suture needle sleeve is a hollow structure; before suturing, the first needle push rod is slidably installed in the suture needle sleeve; during suturing, the first needle push rod pushes the suture needle out of the suture needle sleeve; after suturing, the first needle push rod slides out of the suture needle sleeve, and the second needle push rod is slidably installed in the suture needle sleeve.

[0008] Optionally, a first handle is provided on the screw sleeve rod, and a second handle is provided on the suture needle sleeve.

[0009] Optionally, the first handle and the screw sleeve are integrally formed, and the second handle and the suture needle sleeve are integrally formed.

[0010] Optionally, one end of the screw head for cooperating with the screw sleeve rod has a protrusion, and one end of the screw sleeve rod cooperating with the screw head has a groove cooperating with the protrusion.

[0011] Optionally, the protrusion is a clamping plate, and the recess is a clamping slot that cooperates with the clamping plate.

[0012] Optionally, the protrusion is in the shape of a regular hexagon, and the groove is a hexagonal hole.

[0013] Optionally, one end of the suture is fixed to the top of the screw head, and the other end of the suture is fixed to the top of the suture needle.

[0014] As described above, the single-line lumbar disc annulus fiber rupture suturing needle of the present invention has at least the following beneficial effects:

[0015] 1. The single-thread suture needle for suturing the rupture of the annulus fibrosus of the intervertebral disc is firstly designed by the cooperation of the screw sleeve and the screw head, the cooperation of the suture needle sleeve and the suture needle, and then the design that the two ends of the suture are respectively fixed on the screw head and the suture needle. When using the needle, the medical staff first inserts the screw head into the bone surface on one side of the rupture of the annulus fibrosus, and then makes the screw head axially disengage from the screw sleeve, and then uses the suture needle to pass from one side of the rupture of the annulus fibrosus to the other side, thus completing the suturing of the rupture of the annulus fibrosus. Compared with the suture needle which uses two sutures and the suture fixed to the screw head needs to be tied with a slipknot, the design of the single-thread suture needle for suturing the rupture of the lumbar intervertebral disc is not only simpler to operate, but also more firmly sutured, thus solving the problem that the suture needle in the prior art needs two sutures to be knotted and fixed, which is inconvenient to operate and the sutured annulus fibrosus rupture is easy to rupture again, thereby increasing the probability of recurrence of the patient after surgery.

[0016] 2. The single-line lumbar disc annulus rupture suture needle is designed with a non-magnetic first push needle rod and a magnetic second push needle rod. When suturing the annulus rupture, the first push needle rod pushes the suture needle from the needle sleeve to pass through the intervertebral disc annulus. Compared with the structural form of pulling out the suture needle from the outside of the needle sleeve, the design of the first push needle rod is more convenient for medical staff to use. After suturing, the suture needle is recovered by the magnetic second push needle rod, which is not only easier to operate but also safer than using a clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of a single-line lumbar disc annulus fiber tear suture needle according to the present invention.

[0018] Figure 2 Shown is a schematic diagram of a screw head, suture and needle according to the present invention.

[0019] Figure 3 Shown is a cross-sectional view of a suture needle cannula of the present invention.

[0020] Component number description

[0021] Screw head 1, screw sleeve rod 2, first handle 21, suture needle 3, suture needle sleeve 4, second handle 41, suture thread 5, barb 51, first needle push rod 6, second needle push rod 7. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] See also Figures 1 to 3 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0024] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0025] See also Figure 1 The present invention provides a single-line lumbar disc annulus rupture suture needle. Like a lumbar disc annulus rupture suture needle recorded in the Chinese utility model patent with authorization announcement number CN221013356U, the present suture needle also includes a screw head 1 and a screw sleeve rod 2. Because the suture 5 does not need to pass through the screw sleeve rod 2, the screw sleeve rod 2 here can be solid or hollow; the screw sleeve rod 2 is fixedly connected to the screw head 1 in the circumferential direction and can be detached from the screw head 1 in the axial direction.

[0026] like Figure 1 As shown, the difference from the prior art is that the suture needle also includes a suture needle 3, a suture needle sleeve 4 and a suture 5, the suture needle sleeve 4 is circumferentially fixedly connected to the suture needle 3 and can be axially separated from the suture needle 3; one end of the suture 5 is fixedly connected to the screw head 1, and the other end of the suture 5 is fixedly connected to the suture needle 3; Figure 2 As shown, the suture 5 is provided with a barb 51; the tail of the barb 51 points to the screw head 1, so that the suture 5 guided by the suture needle 3 can smoothly penetrate the fiber ring and suture the fiber ring rupture.

[0027] like Figure 1 and Figure 2 As shown, when using the present needle, the medical staff first inserts the screw head 1 into the bone surface on one side of the annulus fibrosus rupture, and then makes the screw head 1 axially disengage from the screw sleeve rod 2, and then uses the suture needle 3 to pass through the soft tissue of the annulus fibrosus rupture from one side to the other side. After the suture needle 3 is retracted, the suture 5 is pulled to tighten in the soft tissue of the annulus fibrosus, and the suture 5 tightened in the soft tissue of the annulus fibrosus will no longer slide, that is, the two sides of the annulus fibrosus are firmly sutured together, that is, the suturing of the annulus fibrosus rupture is completed; compared with the suture needle of the prior art, during the suturing process, two sutures 5 are required, one of which needs to be tied with a slipknot, and then tied and fixed with the other to complete the suturing of the annulus fibrosus rupture. The present needle utilizes the barb 51 to enable the suture 5 to be better fixed to the edge of the annulus fibrosus rupture, and it will not slip and loosen as easily as the knot tied with two sutures 5, causing the sutured annulus fibrosus rupture to rupture again, increasing the probability of postoperative recurrence in patients. In addition, after the suture 5 is tightened, the connection between the suture 5 part for suturing the soft tissue and the suture needle 3 is cut off from the excess suture 5 that passes through the fiber ring, and the excess suture 5 and the suture needle 3 are taken out together.

[0028] Therefore, compared with the prior art that uses two sutures 5, and the suture 5 fixed to the screw head 1 needs to be tied with a slipknot suture needle, the design of the single-line lumbar disc annulus rupture suture needle is not only simpler to operate, but also more secure in suturing, which solves the problem that the prior art suture needle needs two sutures 5 to be knotted and fixed, which is inconvenient to operate and the sutured annulus rupture is prone to rupture again, thereby increasing the chance of postoperative recurrence in patients.

[0029] In another embodiment, see Figure 1 and Figure 3 The single-line lumbar intervertebral disc annulus rupture suture needle also includes a non-magnetic first needle push rod 6 and a magnetic second needle push rod 7, and the suture needle sleeve 4 is a hollow structure.

[0030] like Figure 1 and Figure 3 As shown, when in use, the screw head 1 is inserted into the bone surface of the annulus fibrosus rupture, the first needle push rod 6 is slidably installed in the suture needle sleeve 4, and the medical staff pushes the first needle push rod 6 to push the suture needle 3 out of the suture needle sleeve 4 through the soft tissue side of the annulus fibrosus rupture, and then the first needle push rod 6 is pulled out of the suture needle sleeve 4, and the second needle push rod 7 is slidably installed in the suture needle sleeve 4 and pushed to the bottom of the suture needle sleeve 4, and the second needle push tube magnetically attracts the suture needle 3, pulls the suture needle 3 to tighten the suture thread 5; after the suture thread 5 with barbs 51 sews up the rupture, the connection between the suture needle 3 and the suture thread 5 is cut. The first needle push rod 6 is used to push the suture needle 3 out of the needle sleeve 4 to pass through the annulus fibrosus of the intervertebral disc. Compared with the structural form of pulling out the suture needle 3 from the outside of the needle sleeve 4, the design of the first needle push rod 6 is more convenient for medical staff to use; the suture needle 3 is recovered by the magnetic second needle push rod 7, which is not only easier to operate but also safer than using a clamp.

[0031] In another embodiment, see Figure 1 The screw sleeve rod 2 is provided with a first handle 21, and the suture needle sleeve 4 is provided with a second handle 41, which is convenient for medical staff to operate. The first handle 21 and the second handle 41 can be engraved with anti-slip patterns.

[0032] In another embodiment, see Figure 1 The first handle 21 and the screw sleeve rod 2 are integrally formed, and the second handle 41 and the suture needle sleeve 4 are integrally formed, thereby ensuring the structural stability of the screw sleeve rod 2 and the suture needle sleeve 4.

[0033] In another embodiment, the screw head 1 has a protrusion at one end for cooperating with the screw sleeve rod 2, and the screw sleeve rod 2 has a groove cooperating with the protrusion at one end for cooperating with the screw head 1; as described in paragraphs 0045-0046 of the specification of a Chinese utility model patent for a lumbar disc annulus rupture suture needle with authorization announcement number CN221013356U, the protrusion can be a clamping plate, and the corresponding groove is a clamping groove cooperating with the clamping plate; or the protrusion is in the shape of a regular hexagon, and the groove is a hexagonal hole, which will not be repeated here.

[0034] In other embodiments, Figure 2As shown, one end of the suture 5 is fixed to the top of the screw head 1, and the other end of the suture 5 is fixed to the top of the suture needle 3. Compared with the suture 5 being connected to other parts of the screw head 1 and the suture needle 3, it is more convenient to sew. Furthermore, one end of the suture 5 can be fixed to the top center of the screw head 1, and the other end of the suture 5 can be fixed to the top center of the suture needle 3.

[0035] In summary, the present invention is designed by the screw sleeve rod 2 and the screw head 1, the needle sleeve 4 and the needle 3, and the two ends of the suture 5 are respectively fixed on the screw head 1 and the needle 3. When using the needle, the medical staff first inserts the screw head 1 into the bone surface on one side of the annulus fibrosus rupture, and then makes the screw head 1 axially separate from the screw sleeve rod 2, and then uses the needle 3 to pass from one side of the annulus fibrosus rupture soft tissue to the other side, that is, the suture of the annulus fibrosus rupture is completed; compared with the use of two sutures 5, and the suture 5 fixed to the screw head 1 needs to be tied with a slipknot head suture needle, the design of the single-line lumbar intervertebral disc annulus fibrosus rupture suture needle is not only simpler to operate, but also more firmly sutured, which solves the problem that the suture needle in the prior art needs two sutures 5 to be knotted and fixed, which is inconvenient to operate and the sutured annulus fibrosus rupture is easy to rupture again, thereby increasing the probability of postoperative recurrence in patients. Therefore, the present invention effectively overcomes the shortcomings of the prior art and has a high industrial utilization value.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A single-line lumbar disc annulus fiber tear suture needle, characterized in that: include: Screw heads; A screw sleeve rod, the screw sleeve rod is fixedly connected to the screw head in the circumferential direction and can be separated from the screw head in the axial direction; needle; A sewing needle sleeve, which is fixedly connected to the sewing needle in the circumferential direction and can be separated from the sewing needle in the axial direction; A suture, one end of which is fixedly connected to the screw head, and the other end of which is fixedly connected to the suture needle; and a barb is arranged on the suture.

2. A single-line lumbar disc annulus fiber rupture suture needle according to claim 1, characterized in that: Also includes: A non-magnetic first needle-pushing rod and a magnetic second needle-pushing rod, wherein the sewing needle sleeve is a hollow structure; Before suturing, the first needle pusher is slidably installed in the needle sleeve; During suturing, the first needle-pushing rod pushes the suture needle out of the suture needle sleeve; After suturing, the first needle pushing rod slides out of the suture needle sleeve, and the second needle pushing rod is slidably installed in the suture needle sleeve.

3. The single-line lumbar disc annulus fiber rupture suture needle according to claim 1, characterized in that: The screw sleeve rod is provided with a first handle, and the suture needle sleeve is provided with a second handle.

4. The single-thread lumbar disc annulus fiber rupture suturing needle according to claim 3, characterized in that: The first handle and the screw sleeve are integrally formed, and the second handle and the suture needle sleeve are integrally formed.

5. The single-line lumbar disc annulus fiber rupture suture needle according to claim 1, characterized in that: One end of the screw head used for cooperating with the screw sleeve rod has a protrusion, and one end of the screw sleeve rod cooperating with the screw head has a groove cooperating with the protrusion.

6. The single-thread lumbar disc annulus fiber tear suture needle according to claim 5, characterized in that: The protrusion is a clamping plate, and the recess is a clamping slot that cooperates with the clamping plate.

7. The single-thread lumbar disc annulus fiber rupture suturing needle according to claim 5, characterized in that: The protrusion is in the shape of a regular hexagon, and the groove is a hexagonal hole.

8. The single-thread lumbar disc annulus fiber rupture suturing needle according to claim 1, characterized in that: One end of the suture is fixedly connected to the top of the screw head, and the other end of the suture is fixedly connected to the top of the suture needle.

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