CN218528834U

CN218528834U - Medical electric drill

Info

Publication number: CN218528834U
Application number: CN202222830999.5U
Authority: CN
Inventors: 豆以彪; 于春江; 于荟洋
Original assignee: Hunan Yueda Biomedical Co ltd
Current assignee: Hunan Yueda Biomedical Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-02-28
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a medical electric drill, including the handle: the drill rod clamping device is characterized in that a motor is arranged on the handle, the output end of the motor is connected with a split type clamping assembly through a coupler, the clamping assembly comprises a clamping seat, a clamping ring is arranged on the outer wall of an open end of the clamping seat, a drill rod is embedded into the inner wall of the clamping ring, a limiting mechanism moving along the length direction of the drill rod is arranged between the clamping ring and the drill rod, and a middle position mechanism moving along the length direction of the drill rod is arranged between the clamping seat and the drill rod. The utility model discloses in, this electric drill is through stop gear and the meso-position structure that sets up, can play the spacing clamping action of inside and outside combination formula to the junction of drilling rod and centre gripping subassembly for the drilling rod is at rotatory during operation, remains dynamic balance state throughout, thereby plays the support guard action to the reaction force when drilling rod and bone contact, avoids the drilling rod to take place the phenomenon of skew under long-time reaction force influence, has strengthened the result of use of electric drill.

Description

Medical electric drill

Technical Field

The utility model relates to an electric drill technical field especially relates to a medical electric drill.

Background

The medical electric drill mainly treats hard tissues such as bones of a human body, the generated vibration is relatively small, the requirements on rotating speed and torque are relatively low, the medical electric drill pays more attention to the convenience in use during operation, and particularly in the orthopedic operation treatment, the electric drill can be used for drilling medical treatment.

Chinese patent publication No.: CN213406195U discloses an electric medical drill, which comprises a hand-held piece and a bending mechanism rotatably arranged on the hand-held piece; the hand piece is a columnar component which is hollow inside and has an opening at one end; the bending mechanism comprises a frustum-shaped joint assembly and a rotating member, the rotating member is a long rod piece, one end of the long rod piece is fixed on the edge of the large end face of the joint assembly, the length direction of the rotating member is perpendicular to the large end face of the joint assembly, the other end of the rotating member is hinged to the inner wall of the handheld member, and the hinge axis of the rotating member is perpendicular to the length direction of the rotating member; a positioning rod for limiting the rotation angle of the joint component is hinged to the ball on the other side of the large end surface; the small end of the joint component is rotatably provided with a drill bit, and the interior of the hand piece is provided with a driving mechanism for driving the drill bit to rotate.

Current medical electric drill is when connecting the drilling rod, generally inserts fixture with the afterbody of drilling rod in, through the drilling rod afterbody insert the tight effect of supporting between position and the fixture to and carry out the fixed of drilling rod with the help of the mode of location bayonet lock, when drilling rod and the long-time drilling contact atress of bone, make the drilling rod can receive the reaction force that lasts, thereby lead to the drilling rod to take place the phenomenon of skew easily, make the drilling rod can't keep the medical operation effect of linear stability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adopt stop gear and meso position mechanism's inside and outside combination formula's drilling rod centre gripping mode, ensure drilling rod linear stability, strengthen the medical electric drill of result of use.

In order to achieve the above object, the present invention provides the following technical solutions: a medical electric drill comprising a handle:

the handle is provided with a motor, and the output end of the motor is connected with the split type clamping assembly through a coupler;

the clamping assembly comprises a clamping seat, a clamping ring is arranged on the outer wall of the open end of the clamping seat, and a drill rod is embedded in the inner wall of the clamping ring;

a limiting mechanism moving along the length direction of the drill rod is arranged between the clamping ring and the drill rod;

and a middle position mechanism which moves along the length direction of the drill rod is arranged between the clamping seat and the drill rod.

As a further description of the above technical solution:

the limiting mechanism comprises a limiting block positioned on the inner wall of the clamping ring, and the limiting block is matched with a limiting groove at the tail part of the drill rod.

As a further description of the above technical solution:

the middle position mechanism comprises a middle position rod which is positioned on the clamping seat and extends to the inner cavity of the clamping ring, and the middle position rod is matched with a middle position groove at the tail part of the drill rod.

As a further description of the above technical solution:

the clamping seat is provided with a positioning hole, a positioning pin penetrates through the positioning hole, and the positioning pin is matched with the positioning groove in the drill rod.

As a further description of the above technical solution:

the cross sections of the limiting blocks and the limiting grooves are of semicircular structures.

As a further description of the above technical solution:

the cross sections of the middle rod and the middle groove are both circular structures.

As a further description of the above technical solution:

the handle is internally provided with a battery and is movably connected with a switch button.

As a further description of the above technical solution:

the outer wall of the handle is provided with a plurality of arc-shaped finger grooves.

In the technical scheme, the utility model provides a pair of medical electric drill has following beneficial effect:

this electric drill can play the spacing clamping action of inside and outside combination formula to the junction of drilling rod and centre gripping subassembly through stop gear and the meso position structure that sets up for the drilling rod is at rotatory during operation, remains dynamic balance state throughout, thereby plays the support guard action to the reaction force when drilling rod and bone contact, avoids the drilling rod to take place the phenomenon of skew under long-time reaction force influence, has strengthened the result of use of electric drill.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural view of a medical electric drill according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a clamping assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drill rod according to an embodiment of the present invention.

Description of reference numerals:

1. a battery; 2. a handle; 3. a motor; 4. a switch button; 5. a coupling; 6. a clamping assembly; 61. a holder; 62. a clamping ring; 63. a limiting block; 64. positioning holes; 65. positioning pins; 66. a neutral lever; 7. a drill stem; 71. a limiting groove; 72. positioning a groove; 73. a median trough; 8. a finger groove.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, a medical electric drill includes a handle 2:

the handle 2 is provided with the motor 3, the battery 1 is arranged in the handle 2, the handle 2 is movably connected with the switch button 4, the switch button 4 squeezes an elastic conducting strip (not shown in the figure) in the handle 2 by pressing the switch button 4, so that the elastic conducting strip is connected with the discharge end of the battery 1 and the motor 3, a power supply circuit of the battery 1 and the motor 3 is conducted, the battery 1 supplies power for the motor 3 to enable the motor 3 to work, and a portable operation effect is achieved;

the output end of the motor 3 is connected with the split type clamping assembly 6 through the coupler 5, the clamping assembly 6 comprises a clamping seat 61, the outer wall of the open end of the clamping seat 61 is provided with a clamping ring 62, the inner wall of the clamping ring 62 is embedded with the drill rod 7, and under the combined connection of the coupler 5 and the clamping assembly 6, the drill rod 7 and the motor 3 can be linked, so that the power of the motor 3 can be transmitted to the drill rod 7, and the drill rod 7 is driven to rotate, so that the drilling treatment operation of medical personnel on the bone of a patient is met;

a limiting mechanism which moves along the length direction of the drill rod 7 is arranged between the clamping ring 62 and the drill rod 7, so that when the drill rod 7 is inserted into the clamping ring 62 and the clamping seat 61, the limiting mechanism can play a role in limiting and clamping the outer side of the drill rod 7, and when the drill rod 7 is in contact with a bone for drilling, the outer side clamping protection role can be played on the position and the state of the drill rod 7;

be provided with the meso position mechanism that moves along drilling rod 7 length direction between holder 61 and the drilling rod 7 for when can insert clamp ring 62 and holder 61 at drilling rod 7, play the effect of spacing centre gripping to the inboard of drilling rod 7 through meso position mechanism, make drilling rod 7 when drilling with the bone contact, play inboard centre gripping guard action to the position and the state of drilling rod 7, and cooperate stop gear to play the spacing guard effect of inside and outside combination formula to drilling rod 7.

Stop gear is including the stopper 63 that is located the clamp ring 62 inner wall, stopper 63 and the spacing groove 71 looks adaptation of drilling rod 7 afterbody, and the cross section of stopper 63 and spacing groove 71 is semi-circular structure, when the afterbody of drilling rod 7 inserts to clamp ring 62, aim at the position of stopper 63 and spacing groove 71, and under the limiting displacement of stopper 63 and spacing groove 71, make the afterbody of drilling rod 7 can be accurate insert in clamp ring 62, can play spacing guard action to the outside of drilling rod 7.

The meso position mechanism is including being located the meso position pole 66 that presss from both sides the seat 61 and extend to the clamp ring 62 inner chamber, meso position pole 66 and the meso position groove 73 looks adaptation of drilling rod 7 afterbody, meso position pole 66 and the cross section of meso position groove 73 are circular structure, when the afterbody of drilling rod 7 inserts to clamp ring 62, aim at the position of meso position pole 66 and meso position groove 73, and under the limiting displacement of meso position pole 66 and meso position groove 73, make the afterbody of drilling rod 7 can be accurate insert in clamp ring 62, can play spacing guard action to the inboard of drilling rod 7, improve the joint strength of drilling rod 7.

Be equipped with the locating hole 64 on the holder 61, and run through in the locating hole 64 and be provided with locating pin 65, and locating pin 65 and the constant head tank 72 looks adaptation on the drilling rod 7, after the position of stopper 63 and spacing groove 71 is connected in place, the position coincidence of locating hole 64 and constant head tank 72, penetrate the locating hole 64 with locating pin 65 this moment in imbedding the constant head tank 72 in, can play the location locking effect to the position of drilling rod 7 and holder 61, prevent that the drilling rod 7 from taking place the phenomenon that drops in holder 61 and the clamp ring 62.

The outer wall of handle 2 is equipped with a plurality of curved finger groove 8, can be when medical personnel's palm holds handle 2 for the finger can be embedded into and indicate the inslot 8, plays the frictional effect of increase to the finger, improves holding of handle 2 and gets stability.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a medical electric drill, includes handle (2), its characterized in that:

the handle (2) is provided with a motor (3), and the output end of the motor (3) is connected with the split type clamping assembly (6) through a coupler (5);

the clamping assembly (6) comprises a clamping seat (61), a clamping ring (62) is arranged on the outer wall of the open end of the clamping seat (61), and a drill rod (7) is embedded in the inner wall of the clamping ring (62);

a limiting mechanism moving along the length direction of the drill rod (7) is arranged between the clamping ring (62) and the drill rod (7);

a middle position mechanism which moves along the length direction of the drill rod (7) is arranged between the clamping seat (61) and the drill rod (7).

2. The medical electric drill according to claim 1, wherein: the limiting mechanism comprises a limiting block (63) positioned on the inner wall of the clamping ring (62), and the limiting block (63) is matched with a limiting groove (71) at the tail part of the drill rod (7).

3. A medical drill according to claim 1 wherein: the middle position mechanism comprises a middle position rod (66) which is positioned on the clamp seat (61) and extends to the inner cavity of the clamp ring (62), and the middle position rod (66) is matched with a middle position groove (73) at the tail part of the drill rod (7).

4. The medical electric drill according to claim 1, wherein: the drill rod positioning fixture is characterized in that a positioning hole (64) is formed in the clamp seat (61), a positioning pin (65) penetrates through the positioning hole (64), and the positioning pin (65) is matched with a positioning groove (72) in the drill rod (7).

5. A medical drill according to claim 2 wherein: the cross sections of the limiting block (63) and the limiting groove (71) are of semicircular structures.

6. A medical drill according to claim 3 in which: the cross sections of the neutral rod (66) and the neutral groove (73) are both circular structures.

7. The medical electric drill according to claim 1, wherein: the battery (1) is arranged in the handle (2), and the switch button (4) is movably connected to the handle (2).

8. A medical drill according to claim 1 wherein: the outer wall of the handle (2) is provided with a plurality of arc-shaped finger grooves (8).