CN221490104U - Abrasive drill for tissue removal - Google Patents
Abrasive drill for tissue removal Download PDFInfo
- Publication number
- CN221490104U CN221490104U CN202322430631.4U CN202322430631U CN221490104U CN 221490104 U CN221490104 U CN 221490104U CN 202322430631 U CN202322430631 U CN 202322430631U CN 221490104 U CN221490104 U CN 221490104U
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- CN
- China
- Prior art keywords
- drill bit
- drill
- protective cover
- tissue removal
- abrasive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005452 bending Methods 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims abstract description 28
- 230000010412 perfusion Effects 0.000 claims description 4
- 238000005498 polishing Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 48
- 208000008558 Osteophyte Diseases 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 201000010934 exostosis Diseases 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 208000002847 Surgical Wound Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000001951 dura mater Anatomy 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 206010020718 hyperplasia Diseases 0.000 description 1
- 238000002684 laminectomy Methods 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 210000000944 nerve tissue Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 208000005198 spinal stenosis Diseases 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a grinding drill for tissue removal, which belongs to the technical field of medical equipment, and comprises a guide pipe, wherein a drill bit and a rotating shaft which is in driving connection with the drill bit are arranged in the guide pipe, a handle is arranged at the proximal end of the guide pipe, and an actuator which is in driving connection with the rotating shaft is arranged in the handle; the distal end of the catheter is provided with a distal end bending part, an opening for the drill bit to extend out is formed in the distal end bending part, and a protective cover partially covering the drill bit is arranged at the opening; the drill bit is provided with an annular groove, and the far-end bending part is provided with a fixing structure with the tail end inserted into the annular groove to prevent the drill bit from moving axially. The utility model can reach difficult positions, provide selective cutting and polishing, avoid damaging surrounding tissues and have high safety.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a grinding drill for tissue removal.
Background
With the age of people, human bones often undergo hyperplasia and degeneration, excessive bone tissues can cause pain and pathological conditions, and even influence the nervous system, such as spinal stenosis pressing nerve roots, disc herniation or herniation pressing spinal cord, and the like. Spinal surgery generally requires the selective removal of certain tissues without damaging surrounding tissues. The tissue to be removed is typically located in a difficult to reach location and is typically hard tissue, such as bone, so that it is necessary to grind and cut the tissue.
In order to facilitate tissue removal, various tissue removal devices have been developed in the prior art, such as an intervertebral foramen surgical abrasive drill disclosed in patent CN209450602U, an surgical abrasive drill disclosed in patent CN206315109U, and a medical abrasive drill tool disclosed in patent CN215584300U, however, most of these abrasive drills are of straight design, difficult to reach difficult positions in surgery, and the drill bit of the abrasive drill can move back and forth generally, which increases the tissue resection range to some extent, but also easily damages surrounding tissues, and the safety needs to be further improved.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a grinding drill for removing tissues, which can reach difficult positions and avoid damaging surrounding tissues.
In order to solve the technical problems, the utility model provides the following technical scheme:
The utility model provides a tissue is got rid of and is used grinding and bore, includes the pipe, be equipped with the drill bit in the pipe and drive connection the rotation axis of drill bit, the proximal end of pipe is equipped with the handle, be equipped with in the handle drive connection the actuator of rotation axis, wherein:
The distal end of the catheter is provided with a distal end bending part, an opening for the drill bit to extend out is formed in the distal end bending part, and a protective cover partially covering the drill bit is arranged at the opening;
The drill bit is provided with an annular groove, and the far-end bending part is provided with a fixing structure with the tail end inserted into the annular groove to prevent the drill bit from moving axially.
Further, the bending angle of the distal bending part is 5-80 degrees.
Further, the proximal end of the catheter is provided with a proximal bend.
Further, a sleeve for connecting the distal end of the rotating shaft and the proximal end of the drill bit is provided.
Further, a support block for supporting the drill bit is arranged between the sleeve and the distal bending part.
Further, the drill bit is eccentrically disposed within the distal bend.
Further, the drill bit is cylindrical or conical;
And/or the length of the part of the drill bit extending out of the opening is 3-15mm, and the length of the protective cover is 60% -130% of the length of the part of the drill bit extending out of the opening.
Further, the fixing structure is a tenon, a pin or a buckle.
Further, the protective cover is distally extended from the distal bend, wherein:
the protective cover only covers the lower part of the drill bit;
Or the protective cover only covers the lower part of the drill bit and the drill bit tip;
or the protective cover covers only the upper part of the drill bit;
Or the protective cover covers only the upper part of the drill bit and the drill bit tip;
or the protective cover covers only the drill tip.
Further, the distal curve is removably attached to the catheter;
and/or the side surface of the handle is provided with a perfusion interface communicated with the catheter.
The utility model has the following beneficial effects:
The abrasive drill for tissue removal of the utility model, on one hand, the distal end of the catheter is provided with a distal bending part, which can realize short-distance reaching difficult tissue positions (such as between adjacent vertebral bodies or small joints); on the other hand, be equipped with the annular groove on the drill bit, be equipped with the end on the distal end flexion and insert the fixed knot in the annular groove constructs to prevent drill bit axial displacement, and the opening part of distal end flexion is equipped with the safety cover of part cover drill bit, thereby can avoid the maloperation to hurt surrounding tissue, the security is high, and in addition through selecting the safety cover of different shapes or sizes, applicable in different operations, satisfies all kinds of operation needs.
Drawings
FIG. 1 is a schematic view of the structure of one embodiment of a burr for tissue removal of the present utility model;
FIG. 2 is a schematic view of another embodiment of a tissue removal burr of the present utility model;
FIG. 3 is an enlarged schematic view of the distal end of the inventive abrasive drill for tissue removal of the present utility model, wherein (a) is one structural form, (b) is another structural form, (c) is yet another structural form, (d) is yet another structural form, and (e) is yet another structural form;
FIG. 4 is a partial cross-sectional view of the distal end of the abrasive drill catheter of the present utility model for tissue removal;
fig. 5 is a distal cross-sectional view of a catheter of the abrasive burr for tissue removal of the present utility model.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The present utility model provides a burr for tissue removal, as shown in fig. 1-5, comprising a catheter 1 (i.e. an elongated hollow member), wherein:
a drill bit 2 and a rotating shaft 3 which is in driving connection with the drill bit 2 are arranged in the catheter 1, a handle 4 is arranged at the proximal end of the catheter 1, and an actuator (not shown) which is in driving connection with the rotating shaft 3 is arranged in the handle 4;
The distal end of the catheter 1 is provided with a distal bending part 11, the distal bending part 11 is provided with an opening 12 for the drill bit 2 to extend out, and the opening 12 is provided with a protective cover 13 which partially covers the drill bit 2;
The drill bit 2 is provided with an annular groove 21, the distal bending part 11 is provided with a fixing structure 14 with the tail end inserted into the annular groove 21 to prevent the drill bit 2 from moving axially, and the fixing structure 14 can be a tenon, a pin, a buckle and the like. The fixing structure 14 also enables the drill bit 2 to be fixed to the distal end of the guide tube 1 when the rotation shaft 3 malfunctions and the drill bit 2 is separated from the rotation shaft 3, ensuring that the drill bit 2 is not separated from the entire apparatus.
During operation, a patient is anesthetized firstly, skin is incised, the working position is exposed, then the anatomical structure can be adapted by changing the holding mode of the abrasive drill for tissue removal, the cutting surface of the drill bit 2 is contacted with the tissue position to be removed, then a power system (an actuator) is started, the actuator drives the rotating shaft 3 to rotate so as to drive the drill bit 2 to rotate, unwanted tissues are removed by the back and forth movement according to requirements (the rotating shaft 3 drives the drill bit 2 to rotate to impact the tissues to remove/cut the tissues, the distal end of the drill bit 2 can be used for tissue drilling), and the rotating speed and the rotating direction of the drill bit 2 can be flexibly adjusted according to requirements.
The abrasive drill for tissue removal of the utility model, on one hand, the distal end of the catheter is provided with a distal bending part, which can realize short-distance reaching difficult tissue positions (such as between adjacent vertebral bodies or small joints); on the other hand, be equipped with the annular groove on the drill bit, be equipped with the end on the distal end flexion and insert the fixed knot in the annular groove constructs to prevent drill bit axial displacement, and the opening part of distal end flexion is equipped with the safety cover of part cover drill bit, thereby can avoid the maloperation to hurt surrounding tissue, the security is high, and in addition through selecting the safety cover of different shapes or sizes, applicable in different operations, satisfies all kinds of operation needs.
The catheter 1 may be provided in a variety of arrangements, including a single bent shaft as shown in fig. 1, a double bent shaft as shown in fig. 2, and others.
The single bending shaft is provided with one bending portion, namely a distal bending portion 11, the distal bending portion 11 accommodates the rotary shaft 3 and the drill 2 and is provided with an opening 12, the distal bending portion 11 achieves a short distance to a difficult tissue position, and the bending angle of the distal bending portion 11 may be 5-80 degrees, such as 10 degrees (a) in fig. 3), 45 degrees (b), (c) and (e) in fig. 3), 75 degrees (d) in fig. 3, and the like.
The double bending shaft is provided with two bending parts, namely a distal bending part 11 and a proximal bending part 15, wherein the proximal bending part 15 is connected with the handle 4, and the proximal bending part 15 ensures that the handle 4 does not interfere with the vision of a surgeon to a cutting part, and ensures better visualization of a working area.
As shown in fig. 4-5, the distal end of the rotatable shaft 3 and the proximal end of the drill bit 2 may be provided with a sleeve 5 for connecting (crimping) the two together, so that the connection is secure and reliable. Between the sleeve 5 and the distal curvature 11 may be provided a support block 6 supporting the drill bit 2, the support block 6 acting as a bearing surface for the drill bit 2, mitigating movement of the drill bit 2 due to impact with tissue (reducing/limiting radial lateral movement of the bit body), thereby advantageously facilitating efficient operation of the surgical drill bit and facilitating its durability (allowing/facilitating its axial rotational movement in a fixed axis or series of axis positions). The drill bit 2 is preferably eccentrically positioned within the distal bend 11 to provide a larger cutting surface.
The drill bit 2 may be of various shapes, such as cylindrical or conical (distal end being smaller in diameter than proximal end), and may have a helical cutting flute 22 thereon to facilitate tissue cutting. As shown in fig. 3 (b), the length L1 of the portion of the drill bit 2 extending out of the opening 12 may be 3-15mm, and the length L2 of the protection cover 13 may be 60% -130% of the length L1 of the portion of the drill bit 2 extending out of the opening 12.
In the present utility model, the drill 2 is partially covered by a protective cover 13, the protective cover 13 is preferably obtained by distally extending a distal curved portion 11 to protect tissues not to be removed from damage, and the protective cover 13 may have the following structural form:
structural form one:
The lower shielding with respect to the distal curved portion 11 achieves the upper cutting, i.e., the protective cover 13 covers only the lower portion of the drill bit 2, thereby protecting the tissue located under the drill bit 2, as shown in fig. 3 (b), (c) and (d), where the length of the protective cover 13 may be smaller, equal to or greater than the length L1 of the portion of the drill bit 2 protruding out of the opening 12. Both fig. 3 (b) and (c) can be used for laminectomy, foramotomy, osteophyte removal, and the extended shield 13 of fig. 3 (c) can be used to separate soft and hard tissue; in fig. 3 (d) can be used to remove osteophytes after vertebrotomy and to decompress adjacent vertebral bodies.
Structural form two (not shown):
Substantially the same as the form one, except that the protective cover 13 also covers the drill tip of the drill 2 at the same time to protect the tissue in front of the drill 2.
And the structural form III:
Lower cutting is achieved with respect to the upper shielding of the distal bend 11, i.e. the protective cover 13 covers only the upper part of the drill bit 2, thereby protecting the tissue located above the drill bit 2, as in fig. 3 (e), for endplate preparation, osteophyte removal.
Structural form four (not shown):
substantially the same as the third configuration, except that the protective cover 13 also covers the drill tip of the drill 2 at the same time to protect the tissue in front of the drill 2.
And the structural form is five:
The anterior occlusion relative to the apex of the distal curve 11 achieves a lateral segmentation, i.e. the shield 13 covers only the drill tip, as shown in fig. 3 (a), which can be used for osteophytes and ligament resections, and foramen incisions in ACDF (anterior cervical discectomy fusion).
To facilitate the selection of the different shapes or sizes of the protective cover 13 described above, the distal bend 11 is preferably removably attached to the catheter 1, e.g. threaded, snap-fit, etc.
In addition, the side of the handle 4 can be provided with a perfusion interface 7 communicated with the catheter 1, so as to be externally connected with a water pipe, and a cooling liquid such as water and the like reaches the tissue removing position through the perfusion interface 7 and the catheter 1 to wash tissues, remove fragments, cool the tissues and prevent target tissues, surrounding tissues and drill bits from overheating. During operation, irrigation may be performed, keeping the drill bit 2 moist.
The handle 4 is used for the operator to operate and control the device, and the handle 4 may comprise means for operating the motor, setting motor parameters (e.g. rotational speed and direction of rotation, etc.), setting cutting time, operating and setting irrigation and/or aspiration parameters, etc. The handle 4 can be externally connected with a power supply.
In conclusion, the abrasive drill for removing tissues is an orthopedic surgical instrument for removing tissues, and can safely (with small surgical risk), effectively and pointedly remove osteophytes; the anatomical structure is reserved, the spine stability is not affected, and the fusion risk is reduced; the difficult position is easier to reach, and the operation channel is improved; a protective cover is arranged between the cutting tool and the nerve tissue, so that the nerve root and the dura mater are prevented from being damaged; minimally invasive and smaller surgical incision.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The utility model provides a tissue is got rid of and is used grinding and bore, includes the pipe, be equipped with the drill bit in the pipe and drive connection the rotation axis of drill bit, the proximal end of pipe is equipped with the handle, be equipped with in the handle drive connection the actuator of rotation axis, its characterized in that:
The distal end of the catheter is provided with a distal end bending part, an opening for the drill bit to extend out is formed in the distal end bending part, and a protective cover partially covering the drill bit is arranged at the opening;
The drill bit is provided with an annular groove, and the far-end bending part is provided with a fixing structure with the tail end inserted into the annular groove to prevent the drill bit from moving axially.
2. The abrasive burr for tissue removal of claim 1, wherein the distal bend has a bend angle of 5-80 degrees.
3. The abrasive burr for tissue removal of claim 1, wherein a proximal end of the conduit is provided with a proximal bend.
4. The abrasive drill for tissue removal according to claim 1, wherein a sleeve for connecting the distal end of the rotary shaft and the proximal end of the drill bit is provided.
5. The abrasive drill for tissue removal according to claim 4, wherein a support block for supporting the drill bit is provided between the sleeve and the distal end curved portion.
6. The abrasive drill for tissue removal of claim 5, wherein the drill bit is eccentrically disposed within the distal bend.
7. The abrasive drill for tissue removal according to claim 1, wherein the drill is cylindrical or conical;
And/or the length of the part of the drill bit extending out of the opening is 3-15mm, and the length of the protective cover is 60% -130% of the length of the part of the drill bit extending out of the opening.
8. The abrasive burr for tissue removal of claim 1, wherein the securing structure is a tenon, a pin, or a clasp.
9. The abrasive drill for tissue removal of any one of claims 1-8, wherein the protective cover extends distally from the distal bend, wherein:
the protective cover only covers the lower part of the drill bit;
Or the protective cover only covers the lower part of the drill bit and the drill bit tip;
or the protective cover covers only the upper part of the drill bit;
Or the protective cover covers only the upper part of the drill bit and the drill bit tip;
or the protective cover covers only the drill tip.
10. The abrasive burr for tissue removal of claim 9, wherein the distal bend is removably attached to the catheter;
and/or the side surface of the handle is provided with a perfusion interface communicated with the catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430631.4U CN221490104U (en) | 2023-09-07 | 2023-09-07 | Abrasive drill for tissue removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322430631.4U CN221490104U (en) | 2023-09-07 | 2023-09-07 | Abrasive drill for tissue removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221490104U true CN221490104U (en) | 2024-08-09 |
Family
ID=92125854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322430631.4U Active CN221490104U (en) | 2023-09-07 | 2023-09-07 | Abrasive drill for tissue removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221490104U (en) |
-
2023
- 2023-09-07 CN CN202322430631.4U patent/CN221490104U/en active Active
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