CN102824204B - Medical multifunctional operating bit - Google Patents

Abstract

A medical multifunctional surgical drill, the front end of a rod-shaped body is a drill, the rear end is a connecting handle, the drill is spindle-shaped, the front of the spindle-shaped drill is a truncated cone, and the surface of the truncated cone is set as the first edge area, The first edge area accounts for 1/7 of the spindle drill, the rear portion of the spindle drill is a cylinder, and the surface of the cylinder is set as the second edge area, which accounts for 6/7 of the spindle drill, and the first edge area A plurality of triangular cutting edges or diamond grits are arranged on the upper part, and a plurality of arc-shaped cutting edges or emery grits are arranged on the second edge area. The invention can be used not only for punching bone tissue during surgery, but also for cutting and polishing bone tissue during surgery, which solves the problem of repeated replacement of single-function surgical drill bits during surgery, and saves a lot of wasted time for replacing drill bits. Time, protect the adjacent important nerves and blood vessels, and effectively reduce the clinical risk.

Description

Medical Multifunctional Surgical Drill

technical field

The invention relates to a medical surgical drill, in particular to a medical multifunctional surgical drill with a cutting structure and a polishing structure on the drill.

Background technique

Bone tissue is the key support and composition structure in the human body. In the process of surgical treatment of bone tissue, the application of surgical drills is becoming more and more extensive. Many types of surgical drills have also been produced for different parts of bone tissue lesions. Most of the currently used surgical drills are spherical drills. During the drilling process, the distance between the working faces is small, which is not suitable for the various needs of clinical operations. Secondly, most of the existing surgical drills are single-function surgical drills, and a kind of drill is only designed for a kind of surgical operation, such as the drill that is responsible for cutting should not undertake the task of polishing. In the process of bone tissue processing, the drill bit is often broken due to the single function of the drill bit, and the drill hole is too deep, which not only hurts the surrounding soft tissue, but also entangles the surrounding soft tissue. Once such a situation occurs in a complex operation, it will inevitably cause serious iatrogenic trauma, and even lead to the death of the patient. And for avoiding this kind of situation to take place, the doctor often needs to repeatedly change the special-purpose drill bit of different models and different materials repeatedly in the operation process. Repeatedly changing special drills of different types and materials in and out of the narrow surgical area during the operation process will not only cause unnecessary accidental injury, but also waste a lot of time for changing drills, prolong the operation time, and increase the clinical risk.

Secondly, with the rapid development of otolaryngology and skull base surgery in the past ten years, the operation of surgical electric drill in microsurgery technology is getting closer to the dangerous area of the ear and skull base. Due to the deep position of the skull base of the ear and the narrow space, the operation area is often blocked by bone and important internal structures, and the anatomical structure of the skull base of the ear, nose, throat and throat is special, where multiple groups of cranial nerves and important blood vessels converge and are connected with the skull base. The surrounding eyeball and brain tissue are adjacent to each other, so this area was considered a "surgical forbidden area" ten years ago. Therefore, the surgical and medical risks in this area have increased, and the requirements for the operation technology of the electric drill under the microscope and the quality of the drill bit have become more stringent and precise. However, once an accident occurs in this narrow area due to the single function of the drill bit, which causes the drill bit to break and drill too deep, it will have disastrous consequences. For this reason, it is imminent to improve the current surgical drill bit with only a single function, so as to adapt to clinical surgery. advances in technology.

Invention content

The present invention aims at the deficiencies of the prior art, and provides a medical multifunctional surgical drill, which can be used not only for punching bone tissue during surgery, but also for cutting and polishing bone tissue during surgery, and solves the problem of single-function surgery. The problem of repeated replacement of the drill bit during the operation saves a lot of time wasted in changing the drill bit, protects the adjacent important nerves and blood vessels, and effectively reduces the clinical risk.

The technical scheme that the present invention adopts for solving the above-mentioned technical problems is: a kind of medical multifunctional surgical drill bit, the front end of a rod-shaped body is a drill bit, the rear end is a connecting handle, the drill bit is a spindle type, and the front part of the spindle type drill bit is Conical frustum, the surface of the conical frustum is set as the first edge area, which accounts for 1/7 of the spindle drill, the rear part of the spindle drill is a cylinder, and the surface of the cylinder is set as the second edge area, which occupies 1/7 of the spindle drill. Spindle drill bit 6/7, several triangular cutting edges or diamond emery are arranged on the first edge area, and several arc-shaped cutting edges or emery emery are arranged on the second edge area.

A plurality of triangular cutting edges are arranged on the small-diameter end surface of the truncated cone at the front of the spindle-shaped drill bit, and a plurality of triangular cutting edges or corundum are arranged on the curved surface of the truncated cone.

There is an interval buffer zone between the first edge area and the second edge area, and the interval buffer area is provided with dyeing marks to form a color band different from the first edge area and the second edge area.

The width of the ribbon is 1/10 of the diameter of the spindle drill.

Between the adjacent arc-shaped cutting edges on the second edge area is a thread-shaped groove.

The ends adjacent to the first edge area are blunted for the several arc-shaped cutting edges provided on the second edge area.

The present invention adopts the beneficial effects of the above-mentioned technical scheme as follows: the drill bit of this medical multifunctional surgical drill is a spindle type, and the front part of the spindle type drill bit is a truncated cone, and the surface of the truncated cone is set as the first edge area, and the first edge area occupies 100% of the spindle. 1/7 of the spindle-type drill, the rear of the spindle-type drill is a cylinder, the surface of the cylinder is set as the second edge area, the second edge area accounts for 6/7 of the spindle-type drill, and several triangular cuttings are set on the first edge area blade or emery, and several arc-shaped cutting blades or emery are arranged on the second blade area, which can be used for punching bone tissue during operation, and can be used for cutting and polishing bone tissue during operation, etc. It solves the problem of repeated replacement of the single-function surgical drill during the operation, and overcomes the damage to the adjacent important nerves and blood vessels during the repeated replacement of the surgical drill. Secondly, this spindle-shaped composite drill solves the need The problem of continuously changing special drills of different types and materials in the narrow surgical area saves a lot of time wasted in repeated replacement of surgical drills, shortens the operation time, and effectively reduces clinical risks. Compared with traditional spherical drills, the spindle drill is the first The enlargement of the second edge area increases the motion stroke of the drill bit and increases the distance of the working face, which can meet the various needs of clinical operations, and when the spindle-type drill rotates at high speed, the front part of the spindle-type drill Several triangular cutting edges on the small-diameter end face of the truncated cone cut and drill holes in the bone tissue, and then, several triangular cutting edges on the arc-shaped end face of the truncated cone at the front of the spindle drill can continue to cut the bone tissue, expanding the size of the bone tissue. The diameter of the circular hole, the cutting edge or grinding edge provided on the second edge area of the spindle drill bit can also further polish or cut the bone tissue.

The ends of several arc-shaped cutting edges arranged on the second edge area are passivated adjacent to the first edge area, so as to prevent the sharp edges of the ends of the arc-shaped cutting edges adjacent to the interval buffer zone from entering the operation area. Or cause unnecessary accidental injury during high-speed rotation, which can improve the safe operation performance of the operation.

There is an interval buffer zone between the first edge area and the second edge area, and the interval buffer area separates the two different types of cutting edges, which can reduce the complicated process when the two different types of cutting edges are effectively connected . The interval buffer zone is provided with dyeing marks to form a color band that is different from the first edge area and the second edge area, so that in the clinical operation process, when the spindle drill rotates at high speed, there is always a difference from the first edge area. The color band of the drill and the second blade area is used as the boundary between the first blade area and the second blade area, which is beneficial to use the indicator mark to clearly determine which blade area of the drill is used for work under direct vision, which is convenient for clinical use. It can also improve the safe operation performance of the operation.

Description of drawings

Fig. 1 is a structural diagram of Embodiment 1 of the present invention;

FIG. 2 is a structural diagram of Embodiment 2 of the present invention;

Fig. 3 is a structural diagram of Embodiment 3 of the present invention.

In the accompanying drawings, 1 is the first edge area, 1a is the small-diameter end face of the truncated cone, 1b is the curved surface of the truncated cone, 2 is the second edge area, 3 is the isolation buffer zone, 4 is the spindle drill, and 5 is the connecting shank.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

Embodiment one

Referring to shown in Fig. 1, a kind of medical multifunctional surgical drill bit, the front end of a rod-shaped body is a drill bit, and the rear end is a connecting handle 5, and the connecting handle 5 is connected to a driving device that drives the drill bit to rotate at a high speed, and the drill bit is a spindle-shaped , the front portion of the spindle drill bit 4 is a truncated cone, and the surface of the truncated cone is set as the first edge zone 1, which accounts for 1/7 of the spindle drill bit, and the rear portion of the spindle drill bit 4 is a cylinder, and the surface of the cylinder Set as the second edge area 2, the second edge area 2 accounts for 6/7 of the spindle drill bit, and several triangular cutting edges are arranged on the small-diameter end face 1a of the frustum of the cone 4 at the front of the spindle drill bit, and gold For steel grit, several arc-shaped cutting edges are arranged on the second edge area 2, and there are thread-shaped grooves between adjacent arc-shaped cutting edges, so that bone chips can flow out with the flushing liquid. The small-diameter end face 1a of the truncated cone is provided with several triangular cutting edges, the curved surface 1b of the truncated cone is provided with emery, and the second edge area 2 is provided with a plurality of arc-shaped cutting edges, so that the drill bit can be used for bone tissue in the operation. It can also be used for cutting and polishing of bone tissue in the operation. The three-edged cutting edges are made of special high-quality steel for the best effect. Of course, they can also be made of other materials. The three-edged cutting edges The blades are evenly distributed on the small-diameter end surface 1a of the truncated cone, and irregular spaces are formed between several triangular cutting blades, so that bone chips can flow out with the flushing liquid. The emery grit can be natural emery or artificial emery, and the emery is firmly and evenly attached to the frustum of conical surface 1b to form an effective polishing interface. The plurality of arc-shaped cutting edges are best made of tungsten steel, but of course they can also be made of other materials. An interval buffer zone 3 is left between the first edge area 1 and the second edge area 2, and the interval buffer zone 3 separates the triangular cutting edge from the arc-shaped cutting edge, which can reduce the triangular cutting edge and the arc-shaped cutting edge. A complex process when the cutting edges are effectively engaged. The interval buffer zone is provided with a dyeing mark, and the dyeing mark is preferably a metal dyeing mark, forming a color band different from the first edge area 1 and the second edge area 2, and the width of the color band is 1 of the diameter of the spindle drill 4 /10, so that in the clinical operation process, the spindle drill 4 always has a color band that is different from the first edge area 1 and the second edge area 2 as the first edge area 1 and the second edge area under the condition of high-speed rotation. The boundary of area 2 is beneficial to use the indicator marker to determine which edge area of the drill bit to work under direct vision, which can not only facilitate clinical use, but also improve the safe operation performance of the operation. The ends of several arc-shaped cutting edges arranged on the second edge area 2 are passivated adjacent to the space buffer zone, so as to prevent the sharp edge ends of the arc-shaped cutting edges adjacent to the space buffer zone from entering the operation area. Or cause unnecessary accidental injury during high-speed rotation, which can improve the safe operation performance of the operation.

Compared with the traditional spherical drill bit, the second edge area 2 of the spindle drill bit 4 is increased, which increases the motion stroke of the drill bit and increases the distance of the working face, and when the spindle drill bit 4 rotates at high speed, firstly, the A number of triangular cutting edges on the small-diameter end face of the frustum of the spindle-shaped drill 4 are used to cut and punch the bone tissue, and then the emery on the curved surface 1b of the frustum of the spindle-shaped drill 4 is used to grind the bone tissue , enlarge the diameter of the circular hole in the bone tissue, and the several arc-shaped cutting edges provided on the second blade area 2 of the spindle drill bit 4 can further cut the bone tissue.

The diameter of the spindle drill bit 4 is 1mm, or 1.8mm, or 2mm, or 2.5mm, or 3mm, or 4mm, or 5mm, or 6mm.

During clinical application, the spindle-shaped drill 4 with a diameter ≥ 4 mm is mostly used to treat superficial bone or safe bone in areas with few neurovascular vessels, and the spindle-shaped drill 4 with a diameter ≤ 3 mm is mostly used in deep anatomical positions, adjacent to Narrow surgical areas with complicated and dangerous relationships, especially the surgical approach in the ear-cranial base area. This type of spindle drill bit 4 all needs to work under the careful operation of the doctor under the direct vision of the microscope in the clinical operation process.

Embodiment two

Referring to shown in Fig. 2, a kind of medical multifunctional surgical drill bit, the front end of a rod-shaped body is a drill bit, and the rear end is a connecting handle 5, and the connecting handle 5 is connected to a driving device that drives the drill bit to rotate at a high speed, and the drill bit is a spindle-shaped , the front portion of the spindle drill bit 4 is a truncated cone, and the surface of the truncated cone is set as the first edge zone 1, which accounts for 1/7 of the spindle drill bit, and the rear portion of the spindle drill bit 4 is a cylinder, and the surface of the cylinder Set as the second edge area 2, the second edge area 2 occupies 6/7 of the spindle drill bit, the first edge area is provided with several triangular cutting edges, and the second edge area 2 is provided with several arc-shaped cutting edges , There is a threaded groove between adjacent arc-shaped cutting edges, so that bone chips can flow out with the irrigating fluid. The structure in which several triangular cutting edges are set on the first edge area 1 and several arc-shaped cutting edges are set on the second edge area 2 enables the drill bit to be used not only for punching bone tissue during surgery, but also for bone tissue drilling during surgery. Cutting, polishing, etc. of the tissue, the small-diameter end face and the curved surface of the frustum of the spindle-shaped drill bit in the present invention are provided with several triangular cutting edges, and the several triangular cutting edges are made of special high-quality steel for the best effect. It can also be made of other materials. The several triangular cutting edges are evenly distributed on the first edge area 1 of the spindle drill 4, and an irregular space is formed between the several triangular cutting edges so that bone chips can flow out with the flushing fluid. The plurality of arc-shaped cutting edges are best made of tungsten steel, but of course they can also be made of other materials. An interval buffer zone 3 is left between the first edge area 1 and the second edge area 2, and the interval buffer zone 3 separates the triangular cutting edge from the arc-shaped cutting edge, which can reduce the triangular cutting edge and the arc-shaped cutting edge. A complex process when the cutting edges are effectively engaged. The interval buffer zone is provided with a dyeing mark, and the dyeing mark is preferably a metal dyeing mark, forming a color band different from the first edge area 1 and the second edge area 2, and the width of the color band is 1 of the diameter of the spindle drill 4 /10, so that in the clinical operation process, the spindle drill 4 always has a color band that is different from the first edge area 1 and the second edge area 2 as the first edge area 1 and the second edge area under the condition of high-speed rotation. The boundary of area 2 is beneficial to use the indicator marker to determine which edge area of the drill bit to work under direct vision, which can not only facilitate clinical use, but also improve the safe operation performance of the operation. The ends of several arc-shaped cutting edges arranged on the second edge area 2 are passivated adjacent to the space buffer zone, so as to prevent the sharp edge ends of the arc-shaped cutting edges adjacent to the space buffer zone from entering the operation area. Or cause unnecessary accidental injury during high-speed rotation, which can improve the safe operation performance of the operation.

Compared with the traditional spherical drill bit, the second edge area 2 of the spindle drill bit 4 is increased, which increases the motion stroke of the drill bit and increases the distance of the working face, and when the spindle drill bit 4 rotates at high speed, firstly, the The several triangular cutting edges on the small-diameter end face of the truncated cone at the front of the spindle-shaped drill 4 cut and punch the bone tissue, and then the several triangular cutting edges on the curved surface of the truncated cone at the front of the spindle-shaped drill 4 continue to cut the bone tissue , enlarge the diameter of the circular hole in the bone tissue, and the several arc-shaped cutting edges provided on the second blade area 2 of the spindle drill bit 4 can further cut the bone tissue.

The diameter of the spindle drill bit 4 is 1mm, or 1.8mm, or 2mm, or 2.5mm, or 3mm, or 4mm, or 5mm, or 6mm.

During clinical application, the spindle-shaped drill 4 with a diameter ≥ 4 mm is mostly used to treat superficial bone or safe bone in areas with few neurovascular vessels, and the spindle-shaped drill 4 with a diameter ≤ 3 mm is mostly used in deep anatomical positions, adjacent to Narrow surgical areas with complicated and dangerous relationships, especially the surgical approach in the ear-cranial base area. This type of spindle drill bit 4 all needs to work under the careful operation of the doctor under the direct vision of the microscope in the clinical operation process.

Embodiment three

Referring to shown in Fig. 3, a kind of medical multifunctional surgical drill bit, the front end of a rod-shaped body is a drill bit, and the rear end is a connecting handle 5, and the connecting handle 5 is connected to a driving device that drives the drill bit to rotate at a high speed, and the drill bit is a spindle-shaped , the front portion of the spindle drill bit 4 is a truncated cone, and the surface of the truncated cone is set as the first edge zone 1, which accounts for 1/7 of the spindle drill bit, and the rear portion of the spindle drill bit 4 is a cylinder, and the surface of the cylinder Set as the second edge area 2, the second edge area 2 accounts for 6/7 of the spindle drill, a number of triangular cutting edges are set on the first edge area 1, emery grit is set on the second edge area 2, and the The emery grit can be natural emery or artificial emery, and the emery is firmly and uniformly attached to the second edge region 2 of the spindle drill bit 4 to form an effective polishing interface. The first edge area 1 is provided with a number of triangular cutting edges, and the second edge area 2 is provided with a structure of emery, so that the drill can be used for both drilling and cutting bone tissue during surgery. , polishing, etc., the small-diameter end face and the curved surface of the frustum of the cone 4 at the front of the spindle drill bit 4 according to the present invention are provided with several triangular cutting edges, and the several triangular cutting edges are made of special high-quality steel for the best effect. Made of other materials, the several triangular cutting edges are evenly distributed on the first edge area 1 of the spindle drill 4, and irregular spaces are formed between the several triangular cutting edges, so that bone debris can flow out with the flushing liquid. The plurality of arc-shaped cutting edges are best made of tungsten steel, but of course they can also be made of other materials. An interval buffer zone 3 is left between the first edge area 1 and the second edge area 2, and the interval buffer area 3 separates the triangular cutting edge from the emery, which can reduce the triangular cutting edge and emery. Complicated workmanship in effective articulation. The interval buffer zone 3 is provided with a dyeing mark, and the dyeing mark is preferably a metal dyeing mark, forming a color band different from the first edge area 1 and the second edge area 2, and the width of the color band is 1 of the diameter of the spindle drill. /10, so that in the clinical operation process, the spindle drill 4 always has a color band that is different from the first edge area 1 and the second edge area 2 as the first edge area 1 and the second edge area under the condition of high-speed rotation. The boundary of area 2 is beneficial to use the indicator marker to determine which edge area of the drill bit to work under direct vision, which can not only facilitate clinical use, but also improve the safe operation performance of the operation.

Compared with the traditional spherical drill bit, the second edge area 2 of the spindle drill bit is enlarged, which increases the motion stroke of the drill bit and increases the distance of the working face, and when the spindle drill bit rotates at high speed, firstly, the spindle Several triangular cutting edges on the small-diameter end face of the frustum of the spindle-shaped drill bit cut and punch bone tissue, and then several triangular cutting edges on the curved surface of the frustum of the spindle-shaped drill bit continue to cut the bone tissue and expand the bone tissue. The diameter of the central hole, the emery grit provided on the second edge area 2 of the spindle drill bit can further grind the bone tissue and the like.

The diameter of the spindle drill bit 4 is 1mm, or 1.8mm, or 2mm, or 2.5mm, or 3mm, or 4mm, or 5mm, or 6mm.

During clinical application, the spindle-shaped drill 4 with a diameter ≥ 4 mm is mostly used to treat superficial bone or safe bone in areas with few neurovascular vessels, and the spindle-shaped drill 4 with a diameter ≤ 3 mm is mostly used in deep anatomical positions, adjacent to Narrow surgical areas with complicated and dangerous relationships, especially the surgical approach in the ear-cranial base area. This type of spindle drill bit 4 all needs to work under the careful operation of the doctor under the direct vision of the microscope in the clinical operation process.

Claims (4)

1. A medical multifunctional surgical drill, the front end of a rod-shaped body is a drill bit, and the rear end is a connecting handle (5), characterized in that: the drill bit is spindle-shaped, and the front part of the spindle-shaped drill bit (4) is a cone platform, the surface of the conical frustum is set as the first cutting edge area (1), the first cutting edge area (1) accounts for 1/7 of the spindle drill bit, the rear part of the spindle drill bit (4) is a cylinder, and the cylinder surface is set as the second The edge area (2), the second edge area (2) accounts for 6/7 of the spindle drill, and there is a buffer zone (3) between the first edge area (1) and the second edge area (2). The buffer zone (3) is provided with dyeing marks forming a color band that is distinguished from the first edge zone (1) and the second edge zone (2) on the front of the spindle-shaped drill (4) A number of triangular cutting edges are set on the small diameter end face (1a) of the frustum of the cone, a number of triangular cutting edges or corundum are set on the curved surface of the truncated cone (1b), and a number of arc-shaped cutting edges are set on the second edge area (2). Blade or emery. 2. The medical multifunctional surgical drill according to claim 1, characterized in that: the width of the ribbon is 1/10 of the diameter of the spindle drill (4). 3. The medical multifunctional surgical drill according to claim 1, characterized in that: there are thread-like grooves between adjacent arc-shaped cutting edges provided on the second cutting edge area (2). 4. The medical multifunctional surgical drill according to claim 1 or 3, characterized in that: the number of arc-shaped cutting edges set on the second edge area (2) is adjacent to the first edge area (1) End blunt.