CN213606669U

CN213606669U - Detachable bone-piercing needle

Info

Publication number: CN213606669U
Application number: CN202021598884.2U
Authority: CN
Inventors: 宋祝怀; 宋珂旭; 税强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-07-06
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses a detachable bone-piercing needle, which comprises a thin-tail solid needle head and a hollow guide needle. The hollow guide needle is carried into the bone near end or far end of the fracture, the thin tail solid needle head and the bone drill are detached, the hollow guide needle is left in the bone or bone block, and the two ends of the hollow guide needle are exposed out of the skin on the inner side and the outer side of the bone to form a working channel of the skin, the bone and the skin. At the moment, an operator can easily transversely pass the steel wire for fixing the fracture from one side of the hollow guide pin to the opposite side of the bone block, withdraw the hollow guide pin from the backbone and the steel wire, and then pierce the hollow guide pin from the outer side steel wire needle hole at the proximal end of the fracture to reach the periosteum and penetrate the skin from the outer side steel wire needle hole at the distal end of the same side.

Description

Detachable bone-piercing needle

Technical Field

The utility model relates to the field of medical equipment, in particular to a detachable bone-piercing needle.

Background

In clinical work, for reduction and fixation of fracture, medical treatment focuses more and more on the minimally invasive treatment concept, namely, the exposure of fracture ends is reduced as much as possible, and fracture blocks and fracture ends can be reduced and fixed. However, in the existing medical treatment, for the displacement fracture of clavicle, patella, olecranon, tibia and the like, incision reduction internal fixation is mostly adopted; the method has large incision and wound, and secondary wound on soft tissue around fracture directly destroys blood circulation around fracture; not only is the fracture easy to delay healing or not heal; and the infection risk is large, the medical facilities and the anesthesia conditions are high, the quality requirement of the fixed material is high, the cooperation of a plurality of persons and even a plurality of persons in a department is needed, and the medical expense is high.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a detachable bone piercing needle.

The utility model is realized in such a way that a detachable bone piercing needle is constructed, which is characterized in that; comprises a thin-tail solid needle head and a hollow guide needle; the two parts are movably connected and can be freely dismounted and sleeved; the thin-tail solid needle head and the hollow guide needle are not fixed fixedly, so that the needle rod can be detached after the hollow guide needle is carried into the backbone by the needle rod, and the hollow guide needle is kept in the backbone to form a working channel for skin backbone skin, so that a steel wire for fixing fracture can transversely penetrate through the working channel to fix the fracture.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the pinhead comprises a sharp head, a needle rod and a thin tail part.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the diameter of the thin tail part is smaller than that of the needle rod, and a hollow guide needle can be sleeved on the thin tail part.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the inner diameter of the hollow guide pin is just larger than the diameter of the thin tail part, and the hollow guide pin can be sleeved on the thin tail part.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the outer diameter of the hollow guide pin is smaller than the diameter of the needle rod, so that the hollow guide pin can be smoothly carried into the backbone or the bone block by the needle rod.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the hollow guide needle is actually a hollow needle or a down-hole needle, and the slope degree of the needle tip is 30-35 degrees so as to be beneficial to puncturing periosteum. The needle tail and the needle tip slope face have a small notch on the same side to facilitate the identification and control of the needle tip piercing direction, i.e. whether the needle tip slope is above or below.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the pointed end is a flat inclined pointed end which is similar to the pointed end of the Kirschner wire in orthopaedics or is a threaded pointed end with the front section of the needle rod, and the purpose is to facilitate the penetration into bones.

The utility model relates to a detachable bone piercing needle, which is characterized in that; the thin tail of the thin tail solid needle head can be made into a screw type, the inner hole of the needle tail of the hollow guide needle is made into a screw cap type, and the joint is assembled and taken down in a rotating mode, so that the hollow guide needle is arranged on the thin tail solid needle head, is stable and can be detached.

The utility model has the advantages of as follows: a detachable bone-penetrating needle is used to penetrate bone or bone block to carry hollow guide needle for introducing steel wire to fix fracture. For short: a detachable bone piercing needle. The device comprises a thin tail solid needle head (a thin tail solid drill bit) and a hollow guide needle (a hollow needle and a down-hole needle). The hollow guide needle is carried into the bone near end or far end of the fracture, the thin tail solid needle head and the bone drill are detached, the hollow guide needle is left in the bone or bone block, and the two ends of the hollow guide needle are exposed out of the skin on the inner side and the outer side of the bone to form a working channel of the skin, the bone and the skin. At the moment, an operator can easily transversely pass the steel wire for fixing the fracture from one side of the hollow guide pin to the opposite side of the bone block, withdraw the hollow guide pin from the backbone and the steel wire, and then pierce the hollow guide pin from the outer side steel wire needle hole at the proximal end of the fracture to reach the periosteum and penetrate the skin from the outer side steel wire needle hole at the distal end of the same side. The steel wire for fixing the fracture can smoothly pass through the hollow guide pin channel from the near-end outside needle hole, penetrate to the far-end needle hole and penetrate out from the far-end guide pin needle hole. The same procedure is used to thread a steel wire for fixing the fracture through the distal shaft and the medial guide pin channel. The detachable bone puncture needle penetrates out of the inner side needle hole at the near end, the hollow guide needle is withdrawn, and after the two fracture ends of the fracture are closed, the steel wire is tightened and knotted, thus completing the percutaneous internal fixation fracture operation of the detachable bone puncture needle guide steel wire. The utility model discloses do not make the incision when the operation, the soft tissue of fracture portion is not damaged for the second time, does not peel off the periosteum, the effectual blood supply who protects fracture department is favorable to the rapid healing of fracture, and it has avoided the fracture patient who is fit for this apparatus treatment to adopt to open the loaded down with trivial details and the misery of the internal fixation treatment that resets. It has the advantages of simple and safe operation, slight wound, no damage to vascular nerves, low treatment cost, easy mastering and popularization and application.

Drawings

FIG. 1 is a schematic structural view (flat oblique tip shape) of the present invention;

FIG. 2 is a schematic structural view (thread tip type) of the present invention;

FIG. 3 is a schematic view of the thin-tail solid needle of the present invention;

FIG. 4 is a schematic view of a thin-tail solid drill of the present invention;

FIG. 5 is a schematic view of the hollow guide pin of the present invention;

FIG. 6 is a schematic view of the present invention penetrating the shaft and reducing the fracture (penetrating the solid needle);

FIG. 7 is a reduction by solid needle bar traction;

FIG. 8 illustrates the introduction of a hollow lead pin;

FIG. 9 the steel wire is threaded into the proximal hollow guide pin;

FIG. 10 is a schematic view of a hollow guide pin inserted into the soft tissue inside the needle and a steel wire inserted into the guide pin;

FIG. 11 is a schematic view of withdrawing the inner hollow guide needle and threading the steel wire into the distal hollow guide needle;

FIG. 12 is a schematic view of a hollow guide pin inserted into the outside of the case, and a steel wire inserted into the guide pin;

figure 13 is a schematic drawing of withdrawing the proximal and lateral guide pins and tightening and knotting the wires.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 13, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a detachable bone-piercing clockwise hole needle, also called detachable clockwise hole drill bit, through the improvement. The method is implemented as follows; comprises a thin-tail solid needle 1 (the needle comprises a sharp head 11, a needle rod 12 and a thin tail part 13) and a hollow guide needle 2. The two parts are not fixed and can be freely dismounted and mounted.

When in implementation; the diameter of the thin tail part is smaller than that of the needle rod, and a hollow guide needle can be sleeved on the thin tail part.

When in implementation; the inner diameter of the hollow guide pin is just larger than the diameter of the thin tail part, and the hollow guide pin can be sleeved on the thin tail part.

When in implementation; the outer diameter of the hollow guide pin is smaller than the diameter of the needle rod, so that the hollow guide pin can be smoothly carried into the backbone or the bone block by the needle rod.

When in implementation; the thin-tail solid needle head and the hollow guide needle are not fixed fixedly and can be freely dismounted and sleeved, so that the needle rod can be dismounted after the hollow guide needle is carried into the backbone by the needle rod, the hollow guide needle is kept in the backbone to form a working channel for skin backbone skin, and a steel wire for fixing fracture transversely penetrates through the working channel to fix the fracture.

When in implementation; the hollow guide needle is actually a hollow needle or a down-hole needle, and the slope degree of the needle tip is 30-35 degrees so as to be beneficial to puncturing periosteum. The needle tail and the needle tip slope face have a small notch on the same side to facilitate the identification and control of the needle tip piercing direction, i.e. whether the needle tip slope is above or below.

When in implementation; the needle tip (tip) can be implemented by adopting the following two structures: one is a flat oblique tip similar to the tip of an orthopedic Kirschner wire; the other is a threaded tip which is the same as the front section of the needle rod, and aims to facilitate the penetration into bones.

The utility model relates to a medical appliance, and discloses a detachable type sequential hole needle which can penetrate backbone or a bone block carries a hollow guide needle and leads a steel wire to be fixed in the skin and break the bone. For short: a detachable bone piercing needle. The device comprises a thin tail solid needle head (a thin tail solid drill bit) and a hollow guide needle (a hollow needle and a down-hole needle). The hollow guide needle is carried into the bone near end or far end of the fracture, the thin tail solid needle head and the bone drill are detached, the hollow guide needle is left in the bone or bone block, and the two ends of the hollow guide needle are exposed out of the skin on the inner side and the outer side of the bone to form a working channel of the skin, the bone and the skin. At the moment, an operator can easily transversely pass the steel wire for fixing the fracture from one side of the hollow guide pin to the opposite side of the bone block, withdraw the hollow guide pin from the backbone and the steel wire, and then pierce the hollow guide pin from the outer side steel wire needle hole at the proximal end of the fracture to reach the periosteum and penetrate the skin from the outer side steel wire needle hole at the distal end of the same side. The steel wire for fixing the fracture can smoothly pass through the hollow guide pin channel from the near-end outside needle hole, penetrate to the far-end needle hole and penetrate out from the far-end guide pin needle hole. The same procedure is used to thread a steel wire for fixing the fracture through the distal shaft and the medial guide pin channel. The detachable bone puncture needle penetrates out of the inner side needle hole at the near end, the hollow guide needle is withdrawn, and after the two fracture ends of the fracture are closed, the steel wire is tightened and knotted, thus completing the percutaneous internal fixation fracture operation of the detachable bone puncture needle guide steel wire. The utility model discloses do not make the incision when the operation, the soft tissue of fracture portion is not damaged for the second time, does not peel off the periosteum, the effectual blood supply who protects fracture department is favorable to the rapid healing of fracture, and it has avoided the fracture patient who is fit for this apparatus treatment to adopt to open the loaded down with trivial details and the misery of the internal fixation treatment that resets. It has the advantages of simple and safe operation, slight wound, no damage to vascular nerves, low treatment cost, easy mastering and popularization and application.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A detachable bone piercing needle, which is characterized in that; comprises a thin tail solid needle head (1) and a hollow guide needle (2); the two parts are movably connected and can be freely dismounted and sleeved; the thin-tail solid needle head and the hollow guide needle are not fixed fixedly, so that the needle rod can be detached after the hollow guide needle is carried into the backbone by the needle rod, and the hollow guide needle is kept in the backbone to form a working channel for skin backbone skin, so that a steel wire for fixing fracture can transversely penetrate through the working channel to fix the fracture.

2. A removable bone piercing needle as claimed in claim 1, wherein; the pinhead (1) comprises a pointed end (11), a needle rod (12) and a thin tail part (13).

3. A removable bone piercing needle as claimed in claim 2, wherein; the diameter of the thin tail part (13) is smaller than that of the needle rod (12), and the hollow guide needle (2) can be sleeved on the thin tail part.

4. A removable bone piercing needle as claimed in claim 1, wherein; the inner diameter of the hollow guide needle (2) is just larger than the diameter of the thin tail part (13), and the hollow guide needle can be sleeved on the thin tail part (13).

5. A removable bone piercing needle as claimed in claim 1, wherein; the outer diameter of the hollow guide needle (2) is smaller than the diameter of the needle rod (12), so that the hollow guide needle can be smoothly carried into a backbone or a bone block by the needle rod.

6. A removable bone piercing needle as claimed in claim 1, wherein; the hollow guide needle (2) is actually a hollow needle or a down-hole needle, the slope degree of the needle point is 30-35 degrees, so as to be beneficial to puncturing periosteum; the needle tail and the needle tip slope face have a small notch on the same side to facilitate the identification and control of the needle tip piercing direction, i.e. whether the needle tip slope is above or below.

7. A removable bone piercing needle as claimed in claim 2, wherein; the pointed end (11) is a flat inclined pointed end which is similar to the pointed end of an orthopedic Kirschner wire or a threaded pointed end which is the same as the front section of the needle rod, and aims to facilitate the penetration into bones.

8. A removable bone piercing needle as claimed in claim 1, wherein; the thin tail of the thin tail solid needle head can be made into a screw type, the inner hole of the needle tail of the hollow guide needle is made into a screw cap type, and the joint is assembled and taken down in a rotating mode, so that the hollow guide needle is arranged on the thin tail solid needle head, is stable and can be detached.