CN218186880U

CN218186880U - Dressing drill and drilling tool for orthopedic surgery

Info

Publication number: CN218186880U
Application number: CN202221682272.0U
Authority: CN
Inventors: 郭晓忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-03
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to the technical field of medical equipment, a orthopedic operation is with repairing brill and drilling tool is provided, orthopedic operation is with repairing brill includes: a connecting rod, a drill rod and a trimming drill bit; one end of the connecting rod is used for being connected with the driving mechanism, the other end of the connecting rod is connected with the drill rod, and the trimming drill bit is arranged at one end, far away from the connecting rod, of the drill rod; the end face, away from the drill rod, of the trimming drill bit is an arc surface, the arc surface is provided with a preset curvature radius, and the preset curvature radius is matched with the curvature radius of the operated femoral head. The utility model discloses an orthopedic surgery is with repairing brill, the terminal surface of repairing the drill bit is the arc surface, the radius of curvature of arc surface and the femoral head radius of curvature phase-match of operation, decompression pore and femoral head phase-match after repairing, the support radius of curvature and the femoral head radius of curvature phase-match of implanting from this have increased the support scope of support to the regional heavy burden district of femoral head necrosis, can play even effectual supporting role to the femoral head heavy burden district, are favorable to promoting and protect hip operation success rate.

Description

Dressing drill and drilling tool for orthopedic surgery

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an orthopedic operation is with repairing brill and drilling tool.

Background

The femoral head necrosis decompression bone grafting and the structural support operation are important hip protection operations for early and medium-term femoral head necrosis treatment, aiming at femoral head necrosis with a large range and joint surface collapse, a support is implanted in a pore canal after dead bones are removed through drilling, so that a femoral head load bearing area is supported.

In the prior art, aiming at femoral head necrosis decompression bone grafting and structural support operations, the diameter size of a drill bit drilling a decompression pore passage is smaller, so that the aperture size of the decompression pore passage is smaller, the diameter size of a corresponding support implanted in the decompression pore passage is smaller, the radian of the top end of the support is inconsistent with the radian of a femoral head joint surface, the matching degree is poor, the support of the support on the femoral head joint surface is in a point-shaped support mode, the support range is smaller, the effect is limited, and the occurrence and development of femoral head collapse cannot be effectively prevented.

SUMMERY OF THE UTILITY MODEL

The utility model provides an orthopedic operation is with repairing brill and drilling tool for solve current orthopedic operation and bore the pore of establishing with the femoral head matching degree not good with the drill bit, lead to the support of implanting can not carry out the problem of effective support to femoral head necrosis region.

The first aspect, the utility model provides an orthopedic surgery is with repairing brill, include: a connecting rod, a drill rod and a trimming drill bit;

one end of the connecting rod is used for being connected with a driving mechanism, the other end of the connecting rod is connected with the drill rod, and the trimming drill bit is arranged at one end, far away from the connecting rod, of the drill rod;

the end face, deviating from the drill rod, of the trimming drill bit is an arc surface, the arc surface is provided with a preset curvature radius, and the preset curvature radius is matched with the curvature radius of the operated femoral head.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, it is 22 ~ 32mm to predetermine curvature radius.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the length dimension more than or equal to 20mm who repairs the drill bit.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the external diameter size of repairing the drill bit is 10 ~ 22mm.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, orthopedic surgery is with repairing brill is equipped with the guiding hole, the guiding hole runs through in proper order the connecting rod the drilling rod with repair the drill bit, the guiding hole is used for holding the guide pin.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the aperture size of guiding hole is 2mm ~ 4mm.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the external diameter of drilling rod is 8 ~ 12mm, and length dimension is 140 ~ 300mm.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the connecting rod the drilling rod with the material of repairing the drill bit is stainless steel.

According to the utility model provides a pair of orthopedic surgery is with repairing brill, the connecting rod is used for using with electric drill, manual handle or robot arm are supporting.

In a second aspect, the present invention provides a drilling tool for orthopedic surgery, including a dressing drill for orthopedic surgery.

The utility model provides an orthopedic operation is with repairing brill and drilling tool, implant bone and structural support operation at femoral head necrosis decompression and drill out the pre-drilling hole through the drill bit of pre-drilling at first, the rethread is maintained the brill and is carried out the reaming to the pre-drilling hole and is maintained, the terminal surface of maintaining the brill is the arc surface, the radius of curvature of arc surface and the femoral head radius of curvature phase-match of operation, decompression pore and femoral head phase-match after maintaining, the supporter radius of curvature and the femoral head radius of curvature phase-match of screw in from this, the support range of supporter to the regional heavy burden district of femoral head necrosis has been increased, can play even effectual structural supporting role to the femoral head, and then be favorable to promoting and protect hip operation success rate.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a dressing drill for orthopedic surgery provided by the present invention;

fig. 2 is a schematic view of the dressing drill for orthopedic surgery in the direction of a;

fig. 3 is a schematic cross-sectional view of a trimming drill B for orthopedic surgery provided by the present invention;

reference numerals: 1: trimming the drill bit; 2: a drill stem; 3: a connecting rod; 4: and (4) a guide hole.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The dressing drill for orthopedic surgery according to the embodiment of the present invention will be described with reference to fig. 1 to 3.

As shown in fig. 1, fig. 2 and fig. 3, the trimming drill for orthopedic surgery provided by the embodiment of the present invention includes: a connecting rod 3, a drill rod 2 and a trimming drill bit 1;

one end of the connecting rod 3 is used for being connected with the driving mechanism, the other end of the connecting rod 3 is connected with the drill rod 2, and the trimming drill bit 1 is arranged at one end, far away from the connecting rod 3, of the drill rod 2;

the end face of the trimming drill bit 1, which is far away from the drill rod 2, is an arc surface, the arc surface has a preset curvature radius, and the preset curvature radius is matched with the curvature radius of the operated femoral head.

Concretely, orthopedic surgery is with truing boring and is bored including connecting rod 3, drilling rod 2 and the truing drill bit 1 that connects gradually, and connecting rod 3, drilling rod 2 and truing drill bit 1 coaxial arrangement. The connecting rod 3 is connected with a driving mechanism, the driving mechanism can be an electric drill, a manual handle or a robot arm and the like, and the driving mechanism can drive the trimming drilling to perform rotary motion and feed motion so as to perform drilling operation. The end face, deviating from the drill rod 2, of the trimming drill bit 1 is an arc surface, the arc surface has a preset curvature radius, and the preset curvature radius is matched with the curvature radius of the femoral head of a patient targeted by an operation. For example, if the diameter of the femoral head is 50mm, that is, the radius of curvature of the femoral head is 25mm, the preset radius of curvature of the end surface of the trimming drill 1 is also 25mm; the femoral head diameter is 54mm, i.e. the femoral head radius of curvature is 27mm, then the preset radius of curvature of the end face of the truing drill bit 1 is also 27mm.

When performing femoral head necrosis decompression bone grafting and structural support surgery, firstly, judging a femoral head necrosis area and measuring the diameter of a femoral head through an X-ray film or three-dimensional CT, and designing the entry angle of a guide pin according to the data of the X-ray film or the three-dimensional CT. The skin is incised from the lower edge of the femoral greater trochanter and the proximal femur to the deep fascia, the tensor fasciae and the fibers of the vastus lateralis are separated bluntly, the cortical bone area of the proximal femur is exposed, and the guide needle is driven into the proper position of the femoral head necrosis area from the outer back of the proximal femur according to a designed track route. Then a decompression channel with a certain depth is drilled by a drill along the direction of the guide pin, and a support which is matched with the decompression channel and has the same curvature radius with the operated femoral head is screwed in the decompression channel.

The utility model discloses a bone grafting and structural support operation are carried out to femoral head necrosis decompression among the prior art, the drill bit that is used for boring to establish the decompression pore is mostly the minor diameter drill bit, the diameter of drill bit is 10 ~ 12mm, the aperture of boring the decompression pore of establishing is less, the size of the support of corresponding implantation is also less, support top curvature radius is less and does not match with the femoral head diameter, the support only plays punctiform supporting role, it is less to femoral head heavy burden district support area, supporting role is limited, especially can not play fine restoration and supporting role to the femoral head necrosis region that the necrosis scope is great or has already collapsed.

In the application, the drilling of the pore canal in the femoral head necrosis decompression bone grafting and structural support operation adopts a dressing drill, the drilling work area of the dressing drill is a dressing drill bit 1, the main body part of the dressing drill bit 1 is a cylindrical body, and the diameters of the main body part can be respectively 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm and the like. The end face of the trimming drill bit 1 is an arc surface, the arc surface has a preset curvature radius, the preset curvature radius can be 22-32 mm, the size of the preset curvature radius is set according to actual requirements, and the preset curvature radius is matched with the curvature radius of the operated femoral head.

The cylindrical surface of the dressing drill bit 1 is provided with a plurality of spiral grooves, the number of the spiral grooves can be three, and the extending direction of the spiral grooves can be in a left-hand spiral relationship with the axial direction of the dressing drill bit 1. When the end face of the dressing drill bit 1 is abutted to the surface of the cortical bone, the cutting edge cuts the cortical bone in the circumferential direction, and the spiral groove can discharge the cut bone fragments in time.

During the process of femoral head necrosis decompression bone grafting and structural support operation, a pre-drilling hole is drilled through a pre-drilling drill bit, and then a driving mechanism drives a trimming drill to drill into the femoral head along the pre-drilling hole and through the distal end of the greater tuberosity to the femoral head direction, wherein the femoral head is 3-5 mm away from the subchondral bone to form a decompression hole channel. If the diameter of the femoral head is 50mm, selecting a trimming drill with the preset curvature radius of 25mm of the arc surface of the end surface of the trimming drill bit 1; if the diameter of the femoral head is 54mm, a truing drill with a preset curvature radius of 27mm of the arc surface of the truing drill bit 1 is selected. The pre-drilled hole is reamed and trimmed through the trimming drill, the end face of the trimmed decompression hole channel is matched with the diameter of the operated femoral head, and therefore the curvature radius of the screwed support is matched with the curvature radius of the operated femoral head, the support area is increased, the uniform and effective structural support effect is achieved on the femoral head necrosis area, and the femoral head can be effectively prevented from further collapsing and repaired.

The embodiment of the utility model provides an in, at first drill out the pre-drilling hole through the pre-drilling drill bit in bone and the structural support operation are planted in femoral head necrosis decompression, the rethread is maintained the brill and is carried out the reaming to the pre-drilling hole and is maintained, the terminal surface of maintaining the brill is the arc surface, the radius of curvature of arc surface and the femoral head radius of curvature phase-match of operation, decompression pore and femoral head phase-match after maintaining, the support radius of curvature and the femoral head radius of curvature phase-match of implanting from this, the support scope of support to the regional articular surface of femoral head necrosis has been increased, can play even effectual structural support effect to the femoral head, and then be favorable to promoting the operation success rate.

In an alternative embodiment, the predetermined radius of curvature is 22-32 mm.

Specifically, the preset radius of curvature may be 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 32mm, or the like, which is determined according to the femoral head diameter. For example, the diameter of the femoral head is 44mm, and a trimming drill with the preset curvature radius of 22mm of the arc surface of the trimming drill bit 1 is selected; the diameter of the femoral head is 50mm, and a trimming drill with the preset curvature radius of 25mm of the arc surface of the trimming drill bit 1 is selected; the diameter of the femoral head is 54mm, and a trimming drill with the preset curvature radius of 27mm of the arc surface of the trimming drill bit 1 is selected; the diameter of the femoral head is 60mm, and a trimming drill with the preset curvature radius of 30mm of the arc surface of the trimming drill bit 1 is selected.

The diameter of the support to be implanted and the preset curvature radius of the arc surface of the trimming drill bit 1 are determined according to the measured diameter of the femoral head, and the diameter of the support to be implanted and the preset curvature radius of the arc surface of the trimming drill bit 1 are both matched with the diameter of the femoral head.

In the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 22mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 25mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 27mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 30mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, or the like. Before reaming and trimming the pre-drilled hole, determining the preset curvature radius of the arc surface of the trimming drill bit 1 and the diameter of the main body part of the trimming drill bit 1 according to parameters such as the diameter of the femoral head, and selecting a corresponding trimming drill according to the preset curvature radius and the diameter of the main body part to ream and trim the pre-drilled hole.

The embodiment of the utility model provides an in, according to the femoral head diameter, select and repair the brill with femoral head diameter assorted, repair the femoral head curvature radius phase-match of predetermineeing the radius of curvature of the arc surface of brill and operation, predetermine the radius of curvature and have a plurality of numerical values, the femoral head necrosis decompression that can adapt to different diameters is planted the bone and is structurally supported the operation.

In an alternative embodiment, the length dimension of the button bit 1 is equal to or greater than 20mm.

The length dimension of the trimming drill bit 1 is more than or equal to 20mm, the trimming drill can be guaranteed to be capable of drilling into the position, 3-5 mm away from the subchondral bone, of the femoral head along the pre-drilled hole, and the drilling depth is guaranteed to meet the operation requirement.

In an alternative embodiment, the dressing drill 1 has an outer diameter of 10 to 22mm.

Specifically, the outer diameter of the dressing drill 1 is set according to actual requirements, the diameter of the main body portion of the dressing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, or the like, and the diameter of the main body portion of the dressing drill 1 may be greater than 22mm. The diameter of the main body portion of the truing drill 1 has a plurality of specifications to meet different surgical requirements.

In an alternative embodiment, as shown in figures 1, 2 and 3, the orthopaedic trimming drill is provided with a guide hole 4, the guide hole 4 penetrates the connecting rod 3, the drill rod 2 and the trimming drill 1 in sequence, and the guide hole 4 is used for accommodating a guide pin.

Specifically, guiding hole 4 runs through connecting rod 3, drilling rod 2 and repaiies drill bit 1 in proper order, and guiding hole 4 department is used for holding the guide pin, and the size of guide pin matches with the size of guiding hole 4. When the femoral head necrosis decompression bone grafting operation is carried out, a guide pin is firstly driven into a load bearing area from the far end of a greater tuberosity to a femoral head, a driving mechanism drives a pre-drilling drill bit to drill into a femoral neck to the femoral head area along the direction coaxial with the guide pin to form a pre-drilling hole, then the pre-drilling drill bit is withdrawn, the driving mechanism drives a trimming drill to carry out reaming trimming on the pre-drilling hole so as to form a decompression hole channel matched with the diameter of the femoral head in the femoral neck to femoral head area, finally a support is screwed into the decompression hole channel, and the curvature radius of the support is matched with the curvature radius of the femoral head in the operation.

The guide hole 4 that its both ends were run through in the setting of trimming drill, the guide pin is located guide hole 4, is boring the in-process of establishing the pore, and trimming drill carries out the drilling operation along the coaxial direction with the guide pin, and the guide pin can get the direction to the brill of trimming drill and carry out accurate control, and the guarantee bores the precision in the decompression pore of establishing for the decompression pore can be accurate centering femoral head necrosis region, and then is favorable to ensureing the operation quality.

In an alternative embodiment, the size of the guide hole 4 is 2mm to 4mm.

Specifically, the diameter of the guide pin used in the orthopedic surgery is generally 2.5mm, the aperture of the guide hole 4 is matched with the diameter of the guide pin, the aperture of the guide hole 4 is 2 mm-4 mm, and the aperture of the guide hole 4 is slightly larger than the outer diameter of the guide pin so as to accommodate the guide pin and allow the guide pin to pass through. The guide hole 4 ensures that the truing drill can smoothly drill into the femoral neck to the femoral head area along the direction coaxial with the guide pin.

The main body of the guide needle is a cylinder, the head part of the guide needle is a sharp needle point, the diameter of the guide needle can be 2-4 mm, and the length of the guide needle can be 200-400 mm. The guide wire may be a conventional k-wire, preferably a length-graduated k-wire, more preferably a 2.5mm outer diameter k-wire.

In an alternative embodiment, the drill rod 2 has an outer diameter of 8 to 12mm and a length of 140 to 300mm.

Specifically, the diameter and the length of the drill rod 2 are set according to actual requirements, for example, the diameter of the drill rod 2 may be 10mm, the length of the drill rod 2 is 300mm, and the drill rod 2 needs to ensure that the truing drill has sufficient strength, so that the truing drill is effectively prevented from bending during the drilling process, and the truing drill can drill into a femoral neck to femoral head region along a direction coaxial with the guide pin.

The shape and size of the connecting rod 3 are not particularly limited, and for example, the outer diameter of the connecting rod 3 is 8mm and the length of the connecting rod 3 is 40mm. The drive mechanism may be an electric drill, a hand-operated handle or a robotic arm. For example, the driving mechanism is an electric drill, the connecting rod 3 and the electric drill can be connected in a screwing mode or a clamping mode, the connecting mode is not limited specifically, and the connecting rod 3 can be conveniently connected with and detached from the electric drill. The connecting rod 3 is matched with an electric drill, a manual handle or a robot arm for use, so that the mounting and dismounting are convenient, and meanwhile, the operation of an operator is convenient.

In an alternative embodiment, the connecting rod 3, the drill rod 2 and the dressing drill bit 1 are all made of stainless steel.

Specifically, the material of connecting rod 3, drilling rod 2 and finishing drill bit 1 is stainless steel material, and stainless steel material is favorable to the guarantee to finish the life who bores.

In alternative embodiments, the connector rod 3 is for use with an electric drill, a hand-operated handle or a robotic arm.

The driving mechanism can be an electric drill, a manual handle or a robot arm, the electric drill is taken as an example for explanation, the connecting rod 3 and the electric drill can be connected in a screw connection mode or a clamping connection mode, the connection mode is not particularly limited, and the connecting rod 3 can be conveniently connected with and detached from the electric drill. The connecting rod 3 is matched with an electric drill, a manual handle or a robot arm for use, so that the mounting and dismounting are convenient, and meanwhile, the operation of an operator is convenient.

The embodiment of the utility model provides a still provide an orthopedic operation is with drilling tool, including foretell orthopedic operation is with repairing brill.

Specifically, the drilling tool for the orthopedic surgery comprises a plurality of trimming drills, the specification and the size of each trimming drill are different, and each trimming drill can be matched with an electric drill and the like for use. The parameters of the truing drill mainly include a preset curvature radius parameter of the arc surface of the truing drill 1 and a diameter parameter of the main body part. For example, in the case where the preset radius of curvature of the circular arc surface of the dressing drill 1 is 22mm, the diameter of the body portion of the dressing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 25mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 27mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, or the like; in the case where the preset radius of curvature of the circular arc surface of the truing drill 1 is 30mm, the diameter of the main body portion of the truing drill 1 may be 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, or the like.

When the femoral head necrosis decompression bone grafting and the structural support operation are carried out, the size and the pore canal position of the support to be implanted are determined according to the diameter of the femoral head and the range of the femoral head necrosis area, and a guide pin is driven into the proper position of the femoral head necrosis area in the rear direction outside the proximal end of the femoral shaft according to the designed trajectory. Firstly, connecting a pre-drilling drill bit with an electric drill, driving the pre-drilling drill bit to drill into a femoral neck to a femoral head area along a direction coaxial with a guide pin by the electric drill to form a pre-drilling hole, and withdrawing the pre-drilling drill bit; then a trimming drill matched with the diameter of the femoral head is selected, the electric drill is connected with the trimming drill, the electric drill drives the trimming drill to drill into the femoral head at a position 3-5 mm away from the subchondral bone along the pre-drilling hole in the femoral head direction through the large tuberosity, the pre-drilling hole is subjected to reaming trimming through the trimming drill, and the trimmed pressure reduction pore canal is matched with the diameter of the femoral head, so that the curvature radius of the screwed-in support is matched with the curvature radius of the femoral head in operation, the support area is increased, an even and effective structural support effect is realized on a femoral head necrosis area, the femoral head can be effectively prevented from further collapsing or the collapsed femoral head joint surface can be effectively recovered, and the operation quality is effectively guaranteed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A truing drill for orthopedic surgery, comprising: a connecting rod, a drill rod and a trimming drill bit;

2. The truing drill for orthopedic surgery according to claim 1, wherein the preset radius of curvature is 22-32 mm.

3. The truing drill for orthopedic surgery according to claim 2, wherein the length dimension of the truing drill bit is greater than or equal to 20mm.

4. The truing drill for orthopedic surgery according to claim 2, wherein the external diameter dimension of the truing drill is 10-22 mm.

5. The truing drill for orthopedic surgery according to claim 1, wherein a guide hole is provided in the truing drill for orthopedic surgery, the guide hole sequentially penetrates through the connecting rod, the drill rod and the truing drill bit, and the guide hole is used for accommodating a guide pin.

6. The truing drill for orthopedic surgery according to claim 5, characterized in that the aperture size of the guide hole is 2 mm-4 mm.

7. The truing drill for orthopedic surgery according to claim 1, wherein the drill rod has an outer diameter of 8-12 mm and a length of 140-300 mm.

8. The truing drill for orthopedic surgery according to claim 1, wherein the connecting rod, the drill rod and the truing drill bit are made of stainless steel.

9. The orthopaedic surgical trim drill of claim 1, wherein the connecting rod is for use with an electric drill, a manual handle or a robotic arm.

10. A drilling tool for orthopedic surgery, comprising the dressing drill for orthopedic surgery according to any one of claims 1 to 9.