TWI863864B - Arthroscopic bone guide device - Google Patents

Abstract

An arthroscopic bone-penetrating guide device is applicable to a patient's joint bone and comprises: an arc-shaped body, including a first end and a second end opposite to the first end; a first steel nail telescopically arranged at the first end of the arc-shaped body; a clamp unit slidably arranged on the arc-shaped body between the first end and the second end of the arc-shaped body; and at least one second steel nail telescopically arranged on the clamp unit. A medical staff can operate the first steel nail and the second steel nail to insert the first steel nail or the second steel nail into the joint bone to form a bone-penetrating tunnel.

Description

Arthroscopic bone guide device

The present invention relates to a guide device, in particular to an arthroscopic bone guide device.

The symptoms of meniscus migration are the state of pre-degeneration. Traditional meniscus suture surgery is not suitable for such patients. Many patients suffering from meniscus migration have not yet reached the level of artificial joint replacement, but the symptoms are quite obvious and troublesome. Such patients will seek medical treatment everywhere, and the treatment they get is symptomatic anti-inflammatory drug treatment. They are told that they will wait in pain until the time for artificial joint replacement, that is, when the joint is damaged. There is often no other surgery to treat patients at this stage, so they are like human balls, being pushed around. Although there are new cell treatments, the cost of hundreds of thousands is not affordable for every patient. So it is necessary to find a solution.

Therefore, the purpose of the present invention is to provide an arthroscopic bone guide device.

Therefore, the arthroscopic bone-penetrating guide device of the present invention is applicable to the joint bone of the patient and comprises: an arc-shaped body, including a first end and a second end opposite to the first end; a first steel nail, which is telescopically arranged at the first end of the arc-shaped body; a clamp unit, which is slidably arranged on the arc-shaped body between the first end and the second end of the arc-shaped body; and at least one second steel nail, which is telescopically arranged on the clamp unit. Among them, the medical staff can operate the first steel nail and the second steel nail, and insert the first steel nail or the second steel nail into the joint bone to form a bone-penetrating tunnel.

The effect of the present invention is that since the clamp unit can slide at a variable angle relative to the arc-shaped body, the angle can be adjusted to find a better position to form the bone-penetrating tunnel, so that it can be adapted to the different body shapes or orientations of different patients. The whole process can be completed in one go, reducing the time-consuming repeated steel nail punctures and multiple steps. The present invention can be used to create a meniscus transbone suture surgery before the joint is damaged. Not only is the cost low, but the operation time and pain level are also consistent with general arthroscopic surgery, which can benefit patients with meniscus migration before joint damage.

1:Sewing

2: Arc-shaped body

21: First end

210: Main guide groove

22: Second end

23: Inner arc side

24: Outer arc side

25: Arc-shaped groove

251: Shallow tooth segment

252: Deep tooth section

3: The first nail

4: Clamping unit

40: Clamp guide groove

41: First clamp

411: Base

412: Gear shaft

42: Gear

43: Second clamp

5: Second steel nail

6: Main sleeve

7: Clamp sleeve

8: Meniscus

9: Joint bones

90: Bone tunnel

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a three-dimensional diagram illustrating an embodiment of the arthroscope bone-penetrating guide device of the present invention; FIG. 2 is a three-dimensional exploded diagram illustrating the present embodiment; FIG. 3 is a schematic diagram illustrating that the present embodiment is applicable to the joint bones and meniscus of the patient; FIG. 4 is a schematic diagram illustrating that in the present embodiment, the arthroscope bone-penetrating guide device is used to form a bone-penetrating tunnel in the joint bones; FIG. 5 is a schematic diagram illustrating that in the present embodiment, the arthroscope bone-penetrating guide device is used to form a bone-penetrating tunnel in the joint bones; FIG. The bone guide device is used for meniscus suture surgery; FIG. 6 is a three-dimensional diagram illustrating the first clamp of the clamp unit of the arthroscopic bone guide device; and FIG. 7 is a schematic diagram illustrating that in this embodiment, the arthroscopic bone guide device may include a first steel screw and two second steel screws, the second steel screw may penetrate the joint bone to form the bone tunnel, and the other second steel screw is only nailed into the joint bone without penetrating the joint bone, so as to fix the arthroscopic bone guide device on the joint bone.

Referring to Figures 1, 2, 3, and 6, the embodiment of the arthroscopic bone guide device of the present invention is applicable to the joint bone 9 and the meniscus 8 of the patient, and comprises an arc-shaped body 2, a first steel nail 3, a clamp unit 4, at least one second steel nail 5, a main sleeve 6, and at least one clamp sleeve 7. This embodiment is mainly used in the medical field where special attention should be paid to disinfection and sterilization, so the materials of all components are selected from nickel, chromium or a combination thereof, so as to facilitate the use of currently commonly used disinfection and sterilization mechanisms for processing, and to avoid deterioration caused by frequent processing.

In this embodiment, the arc-shaped body 2 includes a first end 21, a second end 22 opposite to the first end 21, an inner arc side 23, and an outer arc side 24 spaced from the inner arc side 23, and an arc-shaped through groove 25 is provided between the first end 21, the second end 22, the inner arc side 23 and the outer arc side 24. In this embodiment, the arc-shaped through groove 25 has a shallow tooth section 251 adjacent to the inner arc side 23, and a deep tooth section 252 adjacent to the outer arc side 24.

The first steel nail 3 is telescopically arranged at the first end 21 of the arc-shaped body 2. The main sleeve 6 is arranged at the first end 21 of the arc-shaped body 2, wherein the first steel nail 3 can be telescopically moved in the main sleeve 6 along the radial direction of the arc-shaped body 2. In this embodiment, the first end 21 of the arc-shaped body 2 is provided with two main guide grooves 210 which are spaced apart and extend along the radial direction and are selectively inserted by the main sleeve 6.

The second steel nail 5 is retractably arranged on the clamp unit 4. Therefore, in this embodiment, the operator such as a medical staff can operate the first steel nail 3 and the second steel nail 5, and insert the first steel nail 3 or the second steel nail 5 into the joint bone 9 to form a bone tunnel 90, as shown in FIG3.

The clamp unit 4 can be slidably disposed on the arc-shaped body 2 between the first end 21 and the second end 22 of the arc-shaped body 2. In this embodiment, the clamp unit 4 includes a first clamp 41, a plurality of gears 42, and a second clamp 43.

In this embodiment, the first clamp 41 has a base 411 disposed on one surface of the arc-shaped body 2, and a plurality of gear shafts 412 extending from the base 411 and passing through the arc-shaped through slot 25. The gears 42 are rotatably sleeved on the gear shafts 412. As shown in Figures 2 and 6, in this embodiment, the number of the gears 42 is three, and the number of the gear shafts 412 is also three accordingly.

The second clamp 43 is disposed on another surface of the arc-shaped body 2 and is fixed to the gear shaft 412 of the first clamp 41.

The base 411 of the first clamp 41 and the second clamp 43 are each provided with a plurality of clamp guide grooves 40. The second steel nail 5 can be selectively inserted into any one of the clamp guide grooves 40. In this embodiment, the number of the clamp guide grooves 40 of the base 411 of the first clamp 41 and the number of the clamp guide grooves 40 of the second clamp 43 are both four, that is, the clamp unit 4 is provided with a total of eight clamp guide grooves 40.

The clamp sleeve 7 can be selectively inserted into one of the clamp guide grooves 40 of the clamp unit 4. The second steel nail 5 can be extended and moved in the clamp sleeve 7 along the radial direction of the arc-shaped body 2. In this embodiment, the clamp sleeve 7 can be selectively inserted into one of the eight clamp guide grooves 40 of the clamp unit 4, and the second steel nail 5 can be extended and moved in the clamp sleeve 7.

In this embodiment, when the medical staff wants to operate the clamp unit 4 to slide relative to the arc-shaped body 2, the clamp unit 4 is pushed toward the deep tooth section 252 of the arc-shaped through groove 25, so that the gear 42 of the clamp unit 4 and the deep tooth section 252 are engaged with each other. Therefore, by the tolerance design between the gear 42 and the deep tooth section 252, the gear 42 can roll relative to the deep tooth section 252, so that the clamp unit 4, the clamp sleeve 7 and the second steel nail 5 can slide relative to the arc-shaped body 2 along the arc track.

On the contrary, when the medical staff releases the clamp unit 4, the clamp unit 4 will automatically rebound because the arc-shaped body 2 is an arc-shaped structure, and because the shallow tooth segment 251 has a shorter engagement tooth, when the gear 42 and the shallow tooth segment 251 are engaged with each other, they will stop sliding to achieve an automatic fixing effect.

Referring to Figures 3 to 5, in this embodiment, when performing meniscus transbone suture surgery using the arthroscopic transbone guide device of the present invention, the first steel nail 3 is first inserted into one of the menisci 8 as shown in Figure 3, and the second steel nail 5 is inserted into the joint bone 9 to form the transbone tunnel 90. Then, as shown in Figure 4, the suture 1 is inserted into the transbone tunnel 90. Finally, the suture 1 is tied to complete the meniscus transbone suture surgery, as shown in Figure 5.

Referring to Figs. 1 and 6, in a variation of the present embodiment, three of the clamp guide grooves 40 of the first clamp 41 and three of the clamp guide grooves 40 of the second clamp 43 extend along the radial direction of the arc-shaped body 2, so that the end of the first steel nail 3 and the end of the second steel nail 5 or their extension lines can intersect each other at the center of curvature of the arc-shaped body 2. The last clamp guide groove 40 of the first clamp 41 and the last clamp guide groove 40 of the second clamp 43 extend parallel to the radial direction. For example, as shown in Fig. 6, the two leftmost clamp guide grooves 40 are parallel to each other, so two parallel and adjacent bone-penetrating tunnels can be made.

Referring to Figures 6 and 7, the number of the second steel nails 5 is two, and the number of the clamp sleeves 7 is also two, so the two clamp sleeves 7 can be selectively inserted into two of the clamp guide grooves 40 of the clamp unit 4. Therefore, as shown in Figure 7, the second steel nails 5 can be extended and retracted in the clamp sleeves 7, so that one of the second steel nails 5 can penetrate the joint bone 9 to form the bone tunnel 90, while the other second steel nail 5 is only nailed into the joint bone 9 without penetrating the joint bone 9, so as to fix the entire arthroscope bone guide device on the joint bone 9.

In summary, the present invention has at least the following advantages and effects: (a) Since the clamp unit 4 can slide at a variable angle relative to the arc-shaped body 2, the angle can be adjusted to find a better position to form the bone tunnel 90, so that the whole process can be completed in one go to meet the needs of different body shapes or positions of different patients, reducing the time-consuming repeated steel nail punctures and multiple steps, and can be performed before the joint is damaged. Before, the present invention was used to create a transosseous meniscus suture surgery, which is not only inexpensive, but also has the same operation time and pain as general arthroscopic surgery, which can benefit patients with meniscus lateralization before joint damage; (b) the deep tooth section 252 is used to slide the clamp unit 4, and the shallow tooth section 251 is used to automatically fix the clamp unit 4 to facilitate the operation; (c) because in this embodiment The number of the clamp guide grooves 40 of the first clamp 41 and the number of the clamp guide grooves 40 of the second clamp 43 are both plural (e.g., four as shown in the figure), so multiple tunnels can be drilled at the same time, and at least four bone-penetrating tunnels 90 can be made at a time, thereby increasing the efficiency of the operation and reducing the difficulty of the operation; (d) As shown in FIG. 6 , the two leftmost clamp guide grooves 40 are parallel to each other, so Two parallel adjacent bone-penetrating tunnels 90 can be made; (e) as shown in FIG. 7 , one of the second steel nails 5 can penetrate the articular bone 9 to form the bone-penetrating tunnel 90, while the other second steel nail 5 is only nailed into the articular bone 9 but does not penetrate the articular bone 9, so the entire arthroscope bone-penetrating guide device of the present invention can be fixed on the articular bone 9; therefore, the purpose of the present invention can be achieved.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

2: Arc-shaped body

3: The first nail

4: Clamping unit

5: Second steel nail

6: Main sleeve

7: Clamp sleeve

8: Meniscus

9: Joint bones

90: Bone tunnel

Claims (10)

An arthroscopic bone-penetrating guide device is suitable for a patient's joint bone and comprises: an arc-shaped body, comprising a first end and a second end opposite to the first end; a first steel nail, which is telescopically arranged at the first end of the arc-shaped body; a clamp unit, which is slidably arranged on the arc-shaped body between the first end and the second end of the arc-shaped body; and at least one second steel nail, which is telescopically arranged at the clamp unit; wherein a medical staff can operate the first steel nail and the second steel nail, and insert the first steel nail or the second steel nail into the joint bone to form a bone-penetrating tunnel. The arthroscopic bone guide device as described in claim 1 further includes a main sleeve disposed at the first end of the arc-shaped body, wherein the first steel nail can be extended and retracted in the main sleeve along the radial direction of the arc-shaped body. An arthroscopic bone guide device as described in claim 2, wherein the first end of the arcuate body is provided with two main guide grooves which are spaced apart and extend along the radial direction and into which the main sleeve can be selectively inserted. An arthroscopic bone guide device as described in claim 1, wherein the arcuate body further includes an inner arc side, and an outer arc side spaced from the inner arc side, and an arcuate through groove is provided between the first end, the second end, the inner arc side and the outer arc side, the arcuate through groove having a shallow tooth section adjacent to the inner arc side, and a deep tooth section adjacent to the outer arc side, wherein, when the clamp unit is operated and engages with the deep tooth section of the arcuate through groove of the arcuate body, the clamp unit and the second steel nail can slide relative to each other along the arcuate trajectory, and when the clamp unit is released, the clamp unit automatically engages with the shallow tooth section of the arcuate through groove and stops sliding. The arthroscopy bone guide device as described in claim 4, wherein the clamp unit comprises: A first clamp having a base disposed on one surface of the arc-shaped body, and a plurality of gear shafts extending from the base and passing through the arc-shaped through groove; A plurality of gears, rotatably mounted on the gear shafts of the first clamp; and A second clamp, disposed on the other surface of the arc-shaped body, and fixed to the gear shafts of the first clamp; Wherein, the base of the first clamp and the second clamp are each provided with a plurality of clamp guide grooves, and the second steel nail can be selectively inserted into any of the clamp guide grooves. The arthroscopic bone guide device as described in claim 5 further comprises a clamp sleeve that can be selectively inserted into one of the clamp guide grooves of the clamp unit, wherein the second steel nail can be telescopically moved in the clamp sleeve. An arthroscopic bone guide device as described in claim 5, wherein the number of the clamp guide grooves of the base of the first clamp and the number of the clamp guide grooves of the second clamp are both four. An arthroscopic bone guide device as described in claim 7, wherein three of the clamp guide grooves of the base of the first clamp and three of the clamp guide grooves of the second clamp all extend radially along the arc-shaped body, so that the end of the first steel nail and the end of the second steel nail or their extension lines intersect each other at the center of curvature of the arc-shaped body. An arthroscopic bone guide device as described in claim 8, wherein the last clamp guide groove of the base of the first clamp and the last clamp guide groove of the second clamp extend parallel to the radial direction. The arthroscope bone-penetrating guide device as described in claim 5 further comprises two clamp sleeves which can be selectively inserted into two of the clamp guide grooves of the clamp unit, wherein the number of the second steel screws is two and the second steel screws can respectively move and extend in the clamp sleeves, one of the second steel screws can penetrate the articular bone to form the bone-penetrating tunnel, while the other second steel screw is only nailed into the articular bone without penetrating the articular bone, so as to fix the arc-shaped body to the articular bone.

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