CN221083776U - Bendable bone tunnel wire passing device - Google Patents
Bendable bone tunnel wire passing device Download PDFInfo
- Publication number
- CN221083776U CN221083776U CN202321871909.5U CN202321871909U CN221083776U CN 221083776 U CN221083776 U CN 221083776U CN 202321871909 U CN202321871909 U CN 202321871909U CN 221083776 U CN221083776 U CN 221083776U
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- CN
- China
- Prior art keywords
- passing device
- wire passing
- wire
- device body
- spring
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 30
- 241000287107 Passer Species 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 15
- 239000010959 steel Substances 0.000 description 15
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 206010017076 Fracture Diseases 0.000 description 7
- 230000017531 blood circulation Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 238000009593 lumbar puncture Methods 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000642 iatrogenic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a bendable bone tunnel wire passing device which comprises a straight tubular wire passing device body, wherein the wire passing device body is of a rigid structure, a spring capable of elastically deforming is arranged at the tail end of the wire passing device body, a tubular guide tube is arranged at one end, far away from the wire passing device body, of the spring, and the guide tube is of a rigid structure. The front end of the wire passing device body is provided with a handle, and the handle wraps the front end of the wire passing device body to expose the pipe orifice. The line passing device body is provided with an axially arranged strip-shaped hole near the handle. The utility model has the following beneficial effects: the guide tube is clamped through the operating forceps in the operation process, the spring is bent under the action of external force, the orifice of the guide tube can be exposed, a doctor can conveniently thread in from the orifice of the guide tube, the wire passing device can be ensured to be straight, the wire passing device can conveniently pass through the prefabricated bone tunnel, and the operation time of the doctor is reduced.
Description
Technical Field
The utility model relates to the field of medical appliances, in particular to a bendable bone tunnel wire passing device.
Background
In the operation of orthopaedics, steel wires or tough sutures are often used for binding and fixing, but the annular steel wires can influence the blood circulation of the fracture end, influence the healing of the fracture, and the clinical use is greatly controversial.
The currently used new technology, namely locking steel plates combined with contralateral steel wire bridges to fix long tubular bone fracture, uses longitudinal steel wires, limits the deformation of the locking steel plates on the premise of not influencing the blood circulation of the fracture end, reduces the fracture risk of the steel plates, controls the strain range of the fracture end, and provides a good environment for fracture healing.
According to the novel technology, a steel plate is placed on one side bone surface of an operation incision, a prefabricated bone canal is formed by traversing a long tubular bone from one side of the steel plate to the opposite side bone surface, an outlet of the prefabricated bone canal is arranged on the back side of the long tubular bone when being observed from the operation incision direction, and an operator can see the tail end of a lumbar puncture needle around the upper side of the long tubular bone after the lumbar puncture needle passes through the bone canal, but can not directly see a pipe orifice. The back side of the long tubular bone is blocked by soft tissues, and the operation is frequently carried out by passing through a steel wire or a wire, so that the operation time is prolonged, the risk of accidentally injuring normal tissues is caused, and even the operation is failed. The diameter of the prefabricated bone canal is very small and is generally not more than 3mm so as to prevent iatrogenic fracture; the diameter of the steel wire is 0.6-1.8mm.
In clinical practice, the wire passes through the preformed bone tunnel and fails because the wire hooks the trabecula or bends away from the preformed bone tunnel, often requiring the use of a passer-by assist. At present, the waist puncture needle is an upright hollow pipeline which can pass through a prefabricated bone tunnel to guide the steel wire to pass through the bone tunnel and finish fixation.
There are also some thread guides available in which the tail end is bendable but which require a relatively large pre-formed bone canal diameter, greater than 3mm, which cannot be used in this procedure.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a bendable bone tunnel wire passing device, and the tail end of the bendable bone tunnel wire passing device can effectively reduce the operation time.
The technical solution for realizing the purpose of the utility model is as follows: a bendable bone tunnel wire passer, characterized by: the wire guide device comprises a straight tubular wire guide body, wherein the wire guide body is of a rigid structure, a spring capable of elastically deforming is arranged at the tail end of the wire guide body, a tubular guide tube is arranged at one end, far away from the wire guide body, of the spring, and the guide tube is of a rigid structure.
The pitch of the spring is equal to the wire diameter of the spring.
The front end of the wire passing device body is provided with a handle, and the handle wraps the front end of the wire passing device body to expose the pipe orifice.
The line passing device body is provided with an axially arranged strip-shaped hole near the handle.
The bendable bone tunnel wire passing device has the following beneficial effects: the guiding tube is clamped through the vascular forceps in the operation process, the spring is bent under the action of external force, the orifice of the guiding tube can be exposed, a doctor can conveniently thread in from the orifice of the guiding tube, after the vascular forceps are loosened, the spring is restored, the wire passing device is restored to be straight, the wire passing device is conveniently withdrawn from the prefabricated bone tunnel, and therefore the operation time of the doctor is effectively reduced.
Drawings
The present utility model will be described in detail with reference to the accompanying drawings and examples;
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a right side schematic view of the present utility model;
FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2;
fig. 4 is an enlarged schematic view of the structure at I in fig. 3.
Detailed Description
As shown in fig. 1 to 4, the bendable bone tunnel wire passing device comprises a straight tubular wire passing device body 1, wherein the wire passing device body 1 is of a rigid structure, a spring 2 capable of elastically deforming is arranged at the tail end of the wire passing device body 1, a tubular guide tube 3 is arranged at one end, far away from the wire passing device body, of the spring 2, the guide tube 3 is of a rigid structure, and two ends of the spring 2 are respectively welded and fixed with the wire passing device body 1 and the guide tube 3. The external diameter and the internal diameter of the guide pipe 3 are the same as those of the wire guide body 1, the length L1 from the tail end of the wire guide body 1 to the tail end of the handle is 850mm, the external diameter D1 of the wire guide body 1 is 2.5mm, the internal diameter D2 is 2mm, the wire diameter D3 of the spring is 0.25mm, the height H of the spring is 5mm, and the penetration of the steel wire with the diameter of 1.8mm can be satisfied.
The pitch L2 of the spring 2 is equal to the wire diameter D3 of the spring 2; the thread pitch L2 of the spring 2 can be slightly larger than the thread diameter D3 of the spring 2, for example, the thread diameter D3 of the spring 2 is 0.25mm, the thread pitch L2 can be 0.28mm, 0.29mm, 0.3mm and the like, and the maximum distance between two adjacent circles in the spring deformation process is ensured to be smaller than the diameter of the steel wire.
The front end of the thread passing device body 1 is provided with a handle 4, and the handle 4 wraps the front end of the thread passing device body 1 to expose the pipe orifice.
The line ware body 1 is close to handle 4 department and is equipped with the rectangular type hole 5 of axial arrangement, conveniently observes the condition that the steel wire penetrated the line ware body.
Claims (4)
1. A bendable bone tunnel wire passer, characterized by: the wire guide device comprises a straight tubular wire guide body, wherein the wire guide body is of a rigid structure, a spring capable of elastically deforming is arranged at the tail end of the wire guide body, a tubular guide tube is arranged at one end, far away from the wire guide body, of the spring, and the guide tube is of a rigid structure.
2. The bendable bone tunnel wire passer of claim 1, wherein: the pitch of the spring is equal to the wire diameter of the spring.
3. The bendable bone tunnel wire passer of claim 1, wherein: the front end of the wire passing device body is provided with a handle, and the handle wraps the front end of the wire passing device body to expose the pipe orifice.
4. The bendable bone tunnel wire passer of claim 1, wherein: the line passing device body is provided with an axially arranged strip-shaped hole near the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321871909.5U CN221083776U (en) | 2023-07-17 | 2023-07-17 | Bendable bone tunnel wire passing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321871909.5U CN221083776U (en) | 2023-07-17 | 2023-07-17 | Bendable bone tunnel wire passing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221083776U true CN221083776U (en) | 2024-06-07 |
Family
ID=91302947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321871909.5U Active CN221083776U (en) | 2023-07-17 | 2023-07-17 | Bendable bone tunnel wire passing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221083776U (en) |
-
2023
- 2023-07-17 CN CN202321871909.5U patent/CN221083776U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |