CN211534648U - Abrasive drilling mechanism and surgical knife - Google Patents

Abstract

The utility model discloses a abrasive drilling mechanism and operation cutter relates to medical instrument technical field, and wherein, abrasive drilling mechanism includes: drill bit mount pad, power take off chamber, power take off shaft, water injection connector, water injection chamber and drill bit. Through seting up water injection chamber and water injection chamber setting in the periphery in power take off chamber on the drill bit mount pad, when using the surgical cutter who is connected with this abrasive drilling mechanism, through water injection connector to water injection intracavity water injection, can cool down the processing to the drill bit, and the structure of abrasive drilling mechanism is small and exquisite, and the surgical cutter who is connected with this abrasive drilling mechanism is small, controls easily, has reduced under the high-speed rotatory condition of drill bit, has the hidden danger of the soft tissue around the winding. With this when having solved the electronic scalpel of surgeon use among the prior art, under the high-speed rotatory condition of bistrique or drill bit, there is the hidden danger of soft tissue around the winding, and the abrasive drilling generates heat easily and causes the technical problem of scorching hot damage to human tissue.

Description

Abrasive drilling mechanism and surgical knife

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a abrasive drilling mechanism and surgical knife.

Background

Currently, a surgical knife refers to a special knife composed of a blade and a handle for cutting human or animal body tissue, and is an indispensable and important surgical tool in surgical operations, and the safety of the knife is very important for a doctor and a patient.

A scalpel is typically composed of a blade and a handle. The blade is usually provided with a cutting edge and a mounting groove butted with the scalpel handle, and the blade is usually made of pure titanium, titanium alloy, stainless steel or carbon steel and is generally disposable. When in dissection, the knife edge is used for cutting the skin and the muscle, the knife tip is used for repairing the blood vessel and the nerve, and the knife handle is used for blunt separation.

In surgical operation, a surgical knife with a grinding drill is generally used for grinding bone tissues or soft tissues of a human body, and the conventional grinding knife is generally used for grinding by driving a grinding head or a drill bit to rotate at high speed by a manual knife handle. When a surgeon uses the electric scalpel, under the condition that the grinding head or the drill bit rotates at a high speed, the hidden trouble that surrounding soft tissues are wound exists, and the abrasive drill is easy to generate heat to cause scorching heat damage to human tissues.

Therefore, when a surgeon uses the electric scalpel in the prior art, under the condition that the grinding head or the drill bit rotates at a high speed, the hidden trouble that surrounding soft tissues are wound exists, and the grinding drill is easy to generate heat to cause scorching damage to human tissues.

SUMMERY OF THE UTILITY MODEL

The utility model provides a grinding drill mechanism and operation cutter for when solving to have among the prior art that the surgeon uses electronic scalpel, under the high-speed rotatory condition of bistrique or drill bit, there is the hidden danger of winding soft tissue around, and the grinding drill generates heat easily and causes the technical problem of scorching hot damage to human tissue.

In a first aspect, the embodiment of the utility model provides a grinding and drilling mechanism, including the drill bit mount pad, the power take off chamber, power output shaft, the water injection connector, the water injection chamber, and the drill bit, the power take off chamber is seted up on the drill bit mount pad, power output shaft set up in the power take off intracavity and with the interior wall connection of drill bit mount pad, the water injection chamber is seted up on the drill bit mount pad and is set up the periphery in power take off chamber, the water injection connector sets up on the outer wall of mount pad and the water filling port and the water injection chamber intercommunication of water injection connector, the drill bit is connected with the power take off shaft.

Preferably, the abrasive drilling mechanism still includes drill bit pipe cover, and drill bit pipe cover includes drill bit body, water course and connects the lumen, and the drill bit body is connected with the drill bit mount pad, and the water course all sets up on the drill bit body with connecting the lumen, connects lumen and power take off chamber intercommunication, and the water course just sets up the periphery in power take off chamber with water injection chamber intercommunication.

Preferably, the drill bit further comprises a sealing bearing, the sealing bearing is arranged at a port of the drill bit pipe cover close to the drill bit, and the power output shaft is connected with the inner wall of the drill bit pipe cover through the sealing bearing and seals the port of the drill bit pipe cover close to the connecting pipe cavity of the drill bit.

In a second aspect, embodiments of the present invention provide a surgical knife, including: the power mechanism is connected with the abrasive drilling mechanism through the power transmission mechanism, and the power transmission mechanism is used for transmitting the power of the power mechanism to the abrasive drilling mechanism; wherein the content of the first and second substances,

the power mechanism comprises a mounting seat, an accommodating cavity, a motor and a power shaft, the mounting seat is connected with the power transmission mechanism, the accommodating cavity is formed in the mounting seat, the motor is arranged in the accommodating cavity and connected with the inner wall of the mounting seat, the power shaft is connected with a transmission shaft of the motor, and the transmission shaft is connected with the power transmission mechanism;

the power transmission mechanism comprises a holding rod, a transmission cavity and a transmission shaft, the mounting seat is connected with the drill bit mounting seat through the holding rod, the transmission cavity is formed in the holding rod, the transmission shaft is arranged in the transmission cavity, and the power shaft is connected with the power output shaft through the transmission shaft.

Preferably, the power transmission mechanism further comprises one or more limiting seats, and the limiting seats are arranged in the transmission cavity and connected with the inner wall of the holding rod;

the transmission shaft comprises a transmission rod, bearings with the number corresponding to that of the limiting seats and limiting discs matched with the limiting seats, the power shaft is connected with the power output shaft through the transmission rod, the limiting discs are connected with the transmission rod through the bearings, and the limiting discs are connected with the inner wall of the holding rod through the limiting seats.

Preferably, the number of the limiting seats is 2, and the limiting seats are respectively arranged at two ends of the holding rod.

Preferably, one end of the transmission rod close to the mounting seat and one end of the transmission rod close to the drill bit mounting seat are respectively provided with a first power connecting piece, one end of the power shaft close to the holding rod and one end of the power output shaft close to the holding rod are respectively provided with a second power connecting piece matched with the first power connecting piece, the power shaft is connected with the transmission rod through the matching of the first power connecting piece and the second power connecting piece, and the power output shaft is connected with the transmission rod through the matching of the second power connecting piece and the first power connecting piece.

Preferably, the first power connecting piece comprises a connecting cavity, a connecting port and a clamping head, the clamping head is connected with the transmission rod, the connecting cavity is formed in the clamping head, and the connecting port is communicated with the connecting cavity;

the second power connecting piece comprises a connecting head matched with the connecting cavity and clamping teeth matched with the connecting port, the connecting head is respectively connected with the power shaft and the power output shaft, the clamping teeth are arranged on the connecting head, the power shaft and the power output shaft are connected with the transmission rod through the matching of the connecting cavity and the connecting head, and are meshed with the transmission rod through the matching of the clamping teeth and the connecting port.

Preferably, threaded connectors are respectively arranged at two ends of the holding rod, threaded connectors are respectively arranged at one end of the mounting seat close to the holding rod and one end of the drill bit mounting seat close to the holding rod, the mounting seat is connected with the holding rod through the matching of the threaded connectors and the connectors, and the holding rod is connected with the drill bit mounting seat through the matching of the threaded connectors and the threaded connectors.

Preferably, still include the water injection pipe, the water injection pipe is connected with the water injection connector, and the outer wall of holding the pole is provided with the water pipe holder, and the water pipe holder is used for the centre gripping water injection pipe.

To sum up, the utility model provides a grind brill mechanism and surgical knife relates to medical instrument technical field, and wherein, grind brill mechanism and include: drill bit mount pad, the power take off chamber, power output shaft, the water injection connector, the water injection chamber, and the drill bit, the power take off chamber is seted up on the drill bit mount pad, power output shaft set up in the power take off intracavity and with the inner wall connection of drill bit mount pad, the water injection chamber is seted up on the drill bit mount pad and is set up the periphery in the power take off chamber, the water injection connector sets up on the outer wall of mount pad and the water filling port and the water injection chamber intercommunication of water injection connector, the drill bit is connected with the power output shaft. The utility model provides an among the technical scheme, through set up water injection chamber and water injection chamber setting in the periphery in power take off chamber on the drill bit mount pad, when using the surgical cutter who is connected with this abrasive drilling mechanism, through water injection connector to water injection intracavity water injection, can cool down the drill bit and handle, and the structure of abrasive drilling mechanism is small and exquisite, and the surgical cutter who is connected with this abrasive drilling mechanism is small, controls easily, has reduced under the high-speed rotatory condition of drill bit, has the hidden danger of soft tissue around the winding. With this when having solved the electronic scalpel of surgeon use among the prior art, under the high-speed rotatory condition of bistrique or drill bit, there is the hidden danger of soft tissue around the winding, and the abrasive drilling generates heat easily and causes the technical problem of scorching hot damage to human tissue.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 to 2 are sectional views of a drill grinding mechanism according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a drill grinding mechanism according to an embodiment of the present invention;

fig. 4 is an exploded view of a drill sharpening mechanism provided in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a surgical knife provided in accordance with an embodiment of the present invention;

FIG. 6 is an exploded view of a surgical knife provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural view of a power mechanism according to an embodiment of the present invention;

fig. 8 is a partial detail view of the power mechanism according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a power transmission mechanism according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a transmission shaft according to an embodiment of the present invention;

fig. 11 is a partial detail view of a transmission shaft according to an embodiment of the present invention.

Icon: 300-a drill grinding mechanism; 310-a drill bit mount; 320-a power take-off cavity; 330-power output shaft; 340-a water injection connector; 350-a water injection cavity; 360-drill bit; 370-bit shroud; 371-drill bit body; 372-water channel; 373-a connecting lumen; 380-sealing the bearing; 10-a surgical knife; 100-a power mechanism; 200-a power transmission mechanism; 110-a mount; 120-a housing chamber; 130-a motor; 140-a power shaft; 210-a holding rod; 220-a transmission cavity; 230-a drive shaft; 240-a limiting seat; 231-a transmission rod; 232-a bearing; 233-limit disc; 234 — a first power connection; 150-a second power connection; 2341-connecting chamber; 2342-connecting port; 2343-a snap head; 151-a connector; 152-snap teeth; 250-threaded connection; 360-a threaded connector; 400-water injection pipe; 500-Water pipe clamp.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Please refer to fig. 1 to 4, for the embodiment of the present invention provides a drill grinding mechanism 300, which comprises a drill mounting seat 310, a power output cavity 320, a power output shaft 330, a water injection connector 340, a water injection cavity 350, and a drill 360, wherein the power output cavity 320 is disposed on the drill mounting seat 310, the power output shaft 330 is disposed in the power output cavity 320 and connected to an inner wall of the drill mounting seat 310, the water injection cavity 350 is disposed on the drill mounting seat 310 and disposed at a periphery of the power output cavity 320, the water injection connector 340 is disposed on an outer wall of the mounting seat 110 and a water injection port of the water injection connector 340 is communicated with the water injection cavity 350, and the drill 360 is connected to the power output shaft 330.

During specific implementation, the drill bit mounting seat 310 can adopt the design of cambered surface structure, and the diameter of the drill bit mounting seat 310 in the installation direction close to the drill bit 360 is smaller than the diameter in the installation direction far away from the drill bit 360, and the design of cambered surface structure can reduce the exposure of the sharp-pointed part. The power output cavity 320 is arranged on the central axis of the drill bit mounting seat 310 in a penetrating manner, the power output shaft 330 is arranged in the power output cavity 320 and connected with the inner wall of the drill bit mounting seat 310 in a bearing connection or an oil connection manner, and the power output shaft 330 can rotate in the power output cavity 320 and cannot be separated from the drill bit mounting seat 310 under the action of external power. Set up water injection chamber 350 on drill bit mount pad 310 and set up the periphery in power take off chamber 320, be favorable to having the rivers through the time in water injection chamber 350, cool down high-speed rotatory power output shaft 330, and when rivers flowed out through water injection chamber 350, can flow to drill bit 360 along power output shaft 330 and cool down drill bit 360. It can be clear that drill bit mount pad 310 can set up the external piece for drill bit mount pad 310 passes through the external piece and is connected with external power device, and the water filling port can pour into different liquid according to specific application scene, when operating to the human body, and the water that the water filling port poured into is physiological saline.

Among the technical scheme that this embodiment provided, through set up water injection chamber 350 and water injection chamber 350 setting in the periphery of power take off chamber 320 on drill bit mount pad 310, when using the surgical knife that is connected with this abrasive drilling mechanism 300, through water injection connector 340 to water injection chamber 350 in water injection, can cool down the processing to drill bit 360, and abrasive drilling mechanism 300's structure is small and exquisite, the surgical knife that is connected with this abrasive drilling mechanism 300 is small, control easily, reduced under the high-speed rotatory condition of drill bit 360, there is the hidden danger of winding soft tissue around. Therefore, the technical problems that when a surgeon uses the electric scalpel in the prior art, the grinding head or the drill bit rotates at a high speed, the hidden danger of winding surrounding soft tissues exists, and the grinding drill or the drill bit is easy to generate heat to cause scorching damage to human tissues are solved.

Preferably, the abrasive drilling mechanism 300 further includes a drill bit pipe cover 370, the drill bit pipe cover 370 includes a drill bit pipe body 371, a water channel 372, and a connection pipe cavity 373, the drill bit pipe body 371 is connected with the drill bit mounting seat 310, the water channel 372 and the connection pipe cavity 373 are both opened on the drill bit pipe body 371, the connection pipe cavity 373 is communicated with the power output cavity 320, the water channel 372 is communicated with the water injection cavity 350 and is disposed at the periphery of the power output cavity 320.

In specific implementation, in order to prevent the power output shaft 330 from being exposed, the drill bit pipe cover 370 is disposed on the mounting seat, the power output shaft 330 is disposed in the connecting pipe cavity 373, and the power output shaft 330 is protected from being broken by the hardness of the drill bit pipe body 371. Meanwhile, the drill pipe cover 370 includes a water passage 372, and water flowing out from the water injection cavity 350 may directly flow to the drill 360 through the water passage 372 to cool the drill 360, and the water may not be splashed outwards by the rotation of the power output shaft 330.

Preferably, the drill bit further comprises a sealing bearing 380, the sealing bearing 380 is arranged at the port of the drill bit cover 370 close to the drill bit 360, and the power output shaft 330 is connected with the inner wall of the drill bit cover 370 through the sealing bearing 380 and seals the port of the drill bit cover 370 close to the connecting cavity 373 of the drill bit 360.

In particular, when the drill 360 grinds bone tissue or soft tissue, waste residues may be generated, and the waste residues may easily enter a gap between the drill pipe cover 370 and the power output shaft 330. By providing the seal bearing 380, the power output shaft 330 is connected to the inner wall of the bit tube cover 370 through the seal bearing 380 and seals the port of the bit tube cover 370 near the bit 360 to prevent debris from entering the gap between the bit tube cover 370 and the power output shaft 330.

Referring to fig. 5 to 11, a surgical knife 10 according to an embodiment of the present invention includes: the power mechanism 100, the power transmission mechanism 200 and the drill grinding mechanism 300 provided in the above embodiments, the power mechanism 100 is connected with the drill grinding mechanism 300 through the power transmission mechanism 200, and the power transmission mechanism 200 is used for transmitting the power of the power mechanism 100 to the drill grinding mechanism 300; wherein the content of the first and second substances,

the power mechanism 100 comprises a mounting seat 110, a containing cavity 120, a motor 130 and a power shaft 140, wherein the mounting seat 110 is connected with the power transmission mechanism 200, the containing cavity 120 is arranged on the mounting seat 110, the motor 130 is arranged in the containing cavity 120 and connected with the inner wall of the mounting seat 110, the power shaft 140 is connected with a transmission shaft 230 of the motor 130, and the transmission shaft 230 is connected with the power transmission mechanism 200;

the power transmission mechanism 200 includes a holding rod 210, a transmission cavity 220, and a transmission shaft 230, the mounting seat 110 is connected to the drill mounting seat 310 through the holding rod 210, the transmission cavity 220 is opened on the holding rod 210, the transmission shaft 230 is disposed in the transmission cavity 220, and the power shaft 140 is connected to the power output shaft 330 through the transmission shaft 230.

In specific implementation, the power mechanism 100 includes a mounting base 110, an accommodating cavity 120, a motor 130, and a power shaft 140; it is clear that the receiving cavity 120 also receives a mobile power source, which may be most preferably a rechargeable battery. After the battery is used up, the power mechanism 100 can be detached from the power transmission mechanism 200 and connected with the power mechanism 100 with the battery with full capacity for use, so that the limitation of an external power supply is eliminated, and the surgical knife 10 is small in size, light in weight and flexible to use. The power is connected with motor 130, for the power supply of motor 130, and power transmission 140 is arrived with power transmission to the transmission shaft 230 of motor 130, and power transmission 330 is arrived with power shaft 140140 to transmission shaft 230 for the drill bit 360 of connection on power output 330 rotates at a high speed and grinds bone tissue or soft tissue, dispels the heat through the moisture that water injection chamber 350 flowed out simultaneously, avoids the heat burn human tissue of drill bit 360. In the technical solution provided in this embodiment, the power mechanism 100 is connected to the drill grinding mechanism 300 through the power transmission mechanism 200, the power mechanism 100 provides power, and the power transmission mechanism 200 is used for transmitting the power of the power mechanism 100 to the drill grinding mechanism 300; when the surgical knife is used, the surgical knife 10 can be controlled by holding the holding rod 210, the size is small, and the cutting force and the cutting accuracy of the drill 360 on bone tissues or soft tissues can be mastered by holding the holding rod 210; meanwhile, the water flowing out from the water injection cavity 350 dissipates heat, and the heat of the drill bit 360 is prevented from burning human tissues. Therefore, the technical problems that when the surgical knife 10 with an external power supply grinds bone tissues or soft tissues of a patient in the prior art, the surgical knife 10 is not flexible to use, and the hidden trouble of winding the surrounding soft tissues exists in the surgical process are solved.

Preferably, the power transmission mechanism 200 further includes one or more position limiting seats 240, and the position limiting seats 240 are installed in the transmission cavity 220 and connected with the inner wall of the holding rod 210;

the transmission shaft 230 includes a transmission rod 231, a number of bearings 232 corresponding to the number of the limit seats 240, and a limit disc 233 matched with the limit seats 240, the power shaft 140 is connected to the power output shaft 330 through the transmission rod 231, the limit disc 233 is connected to the transmission rod 231 through the bearings 232, and the limit disc 233 is connected to the inner wall of the holding rod 210 through the limit seats 240.

In specific implementation, in order to arrange the transmission shaft 230 in the transmission cavity 220 and stably connect the transmission shaft with the inner wall of the power transmission mechanism 200, the power transmission mechanism 200 further includes one or more limiting seats 240, the limiting seats 240 are arranged in the transmission cavity 220 and connected with the inner wall of the holding rod 210, the limiting seats 240 may be annular protrusions, the upper surfaces of the annular protrusions are provided with grooves, and the grooves are matched with the peripheries of the limiting discs 233, so that the fiber limiting discs 233 and the limiting seats 240 are clamped and fixedly connected. The driving rod 231 is connected with the inner cavity of the limiting disc 233 through the bearing 232, so that the driving rod 231 can rotate in the inner cavity of the limiting disc 233 at a high speed through the bearing 232. By providing the limiting disc 233, the material of the holding rod 210 is reduced to reduce the mass of the holding rod 210, so that the overall weight of the surgical knife 10 is reduced, and the operation is more flexible.

Preferably, there are 2 limiting seats 240 respectively disposed at both ends of the holding rod 210.

During the concrete implementation, spacing seat 240 can be 2, sets up to 2 to set up spacing seat 240 at the both ends of holding pole 210, be connected through spacing seat 240 and spacing dish 233 and the cooperation that transfer line 231 is connected through bearing 232 and spacing dish 233 can be sealed the both ends of transmission chamber 220, prevent that external pollutant from getting into the transmission, later stage washing and maintenance are more convenient.

Preferably, one end of the transmission rod 231 close to the mounting seat 110 and one end of the transmission rod 231 close to the drill mounting seat 310 are respectively provided with a first power connector 234, one end of the power shaft 140 close to the holding rod 210 and one end of the power output shaft 330 close to the holding rod 210 are respectively provided with a second power connector 150 matched with the first power connector 234, the power shaft 140 is connected with the transmission rod 231 through matching of the first power connector 234 and the second power connector 150, and the power output shaft 330 is connected with the transmission rod 231 through matching of the second power connector 150 and the first power connector 234.

In one embodiment, power shaft 140 is detachably connected to power rod 231, and power take-off shaft 330 is detachably connected to power rod 231. A first power connector 234 is respectively arranged at one end of the transmission rod 231 close to the mounting seat 110 and one end of the transmission rod 231 close to the drill bit mounting seat 310, and a second power connector 150 matched with the first power connector 234 is respectively arranged at one end of the power shaft 140 close to the holding rod 210 and one end of the power output shaft 330 close to the holding rod 210; such that power shaft 140 is coupled to drive link 231 by the mating of first power link 234 with second power link 150 and power take-off shaft 330 is coupled to drive link 231 by the mating of second power link 150 with first power link 234.

Preferably, the first power connector 234 includes a connection cavity 2341, a connection port 2342, and a snap head 2343, the snap head 2343 is connected with the transmission rod 231, the connection cavity 2341 is opened on the snap head 2343, and the connection port 2342 is communicated with the connection cavity 2341;

the second power connector 150 comprises a connector 151 matched with the connecting cavity 2341 and a clamping tooth 152 matched with the connecting port 2342, the connector 151 is connected with the power shaft 140 and the power output shaft 330 respectively, the clamping tooth 152 is arranged on the connector 151, the power shaft 140 and the power output shaft 330 are connected with the transmission rod 231 through matching of the connecting cavity 2341 and the connector 151, and are meshed with the transmission rod 231 through matching of the clamping tooth 152 and the connecting port 2342.

In specific implementation, the power shaft 140 and the transmission rod 231 can be detachably connected, the power take-off shaft 330 and the transmission rod 231 can be detachably connected, the connection and the disconnection of the power shaft 140 and the transmission rod 231 and the power take-off shaft 330 and the transmission rod 231 can be more quickly achieved, and the connection stability of the power shaft 140 and the transmission rod 231 and the power take-off shaft 330 and the transmission rod 231 can be improved. The first power connector 234 comprises a connecting cavity 2341, a connecting port 2342 and a clamping head 2343, wherein the clamping head 2343 is connected with the transmission rod 231, the connecting cavity 2341 is formed in the clamping head 2343, and the connecting port 2342 is communicated with the connecting cavity 2341; the second power connector 150 comprises a connector 151 matched with the connecting cavity 2341 and a clamping tooth 152 matched with the connecting port 2342, the connector 151 is connected with the power shaft 140 and the power output shaft 330 respectively, the clamping tooth 152 is arranged on the connector 151, the power shaft 140 and the power output shaft 330 are connected with the transmission rod 231 through matching of the connecting cavity 2341 and the connector 151, and are meshed with the transmission rod 231 through matching of the clamping tooth 152 and the connecting port 2342.

Preferably, threaded connectors 250 are respectively arranged at two ends of the holding rod 210, threaded connectors 360 are respectively arranged at one end of the mounting seat 110 close to the holding rod 210 and one end of the drill mounting seat 310 close to the holding rod 210, the mounting seat 110 is connected with the holding rod 210 through the matching of the threaded connectors 360 and the connectors 2342, and the holding rod 210 is connected with the drill mounting seat 310 through the matching of the threaded connectors 250 and the threaded connectors 360.

In specific implementation, in order to enable the holding rod 210 and the mounting seat 110 to be quickly mounted and dismounted and enable the holding rod 210 and the drill mounting seat 310 to be quickly mounted and dismounted, threaded connectors 250 are respectively arranged at two ends of the holding rod 210, threaded connectors 360 are respectively arranged at one end of the mounting seat 110 close to the holding rod 210 and one end of the drill mounting seat 310 close to the holding rod 210, the mounting seat 110 is connected with the holding rod 210 through matching of the threaded connectors 360 and a connecting port 2342, and the holding rod 210 is connected with the drill mounting seat 310 through matching of the threaded connectors 250 and the threaded connectors 360.

Preferably, the water injection pipe 400 is further included, the water injection pipe 400 is connected with the water injection connector 340, the outer wall of the holding rod 210 is provided with a water pipe clamping piece 500, and the water pipe clamping piece 500 is used for clamping the water injection pipe 400.

During specific implementation, the surgical knife 10 further comprises a water injection pipe 400 and a water pipe clamping piece 500 arranged on the outer wall of the holding rod 210 and close to one end of the drill bit 360, one end of the water injection pipe 400 is connected with the water injection connector 340, the other end of the water injection pipe is connected with an external water supply device, and the water injection pipe 400 is connected with the water injection connector 340 more stably and is provided with a water pipe clamping piece 500 for clamping the water injection pipe 400.

To sum up, the utility model provides a grind brill mechanism and surgical knife relates to medical instrument technical field, and wherein, grind brill mechanism and include: drill bit mount pad, the power take off chamber, power output shaft, the water injection connector, the water injection chamber, and the drill bit, the power take off chamber is seted up on the drill bit mount pad, power output shaft set up in the power take off intracavity and with the inner wall connection of drill bit mount pad, the water injection chamber is seted up on the drill bit mount pad and is set up the periphery in the power take off chamber, the water injection connector sets up on the outer wall of mount pad and the water filling port and the water injection chamber intercommunication of water injection connector, the drill bit is connected with the power output shaft. The utility model provides an among the technical scheme, through set up water injection chamber and water injection chamber setting in the periphery in power take off chamber on the drill bit mount pad, when using the surgical cutter who is connected with this abrasive drilling mechanism, through water injection connector to water injection intracavity water injection, can cool down the drill bit and handle, and the structure of abrasive drilling mechanism is small and exquisite, and the surgical cutter who is connected with this abrasive drilling mechanism is small, controls easily, has reduced under the high-speed rotatory condition of drill bit, has the hidden danger of soft tissue around the winding. With this when having solved the electronic scalpel of surgeon use among the prior art, under the high-speed rotatory condition of bistrique or drill bit, there is the hidden danger of soft tissue around the winding, and the abrasive drilling generates heat easily and causes the technical problem of scorching hot damage to human tissue.

In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a grinding drill mechanism, its characterized in that, grinding drill mechanism includes drill bit mount pad, power take off chamber, power output shaft, water injection connector, water injection chamber and drill bit, the power take off chamber is seted up on the drill bit mount pad, power output shaft sets up the power take off intracavity and with the interior wall connection of drill bit mount pad, the water injection chamber is seted up on the drill bit mount pad and set up the periphery in power take off chamber, the water injection connector sets up just on the outer wall of mount pad the water filling port of water injection connector with water injection chamber intercommunication, the drill bit with the power take off shaft is connected.

2. The abrasive drilling mechanism according to claim 1, further comprising a drill bit pipe cover, wherein the drill bit pipe cover comprises a drill bit pipe body, a water channel and a connecting pipe cavity, the drill bit pipe body is connected with the drill bit mounting seat, the water channel and the connecting pipe cavity are both arranged on the drill bit pipe body, the connecting pipe cavity is communicated with the power output cavity, and the water channel is communicated with the water injection cavity and is arranged at the periphery of the power output cavity.

3. The abrasive drilling mechanism of claim 2, further comprising a sealing bearing disposed at a port of the bit tube housing near the drill bit, wherein the power output shaft is connected to an inner wall of the bit tube housing through the sealing bearing and seals the port of the bit tube housing near the connection lumen of the drill bit.

4. A surgical knife, comprising: the power mechanism, the power transmission mechanism and the abrasive drilling mechanism according to any one of claims 1 to 3, wherein the power mechanism is connected with the abrasive drilling mechanism through the power transmission mechanism, and the power transmission mechanism is used for transmitting the power of the power mechanism to the abrasive drilling mechanism; wherein the content of the first and second substances,

the power mechanism comprises a mounting seat, an accommodating cavity, a motor and a power shaft, the mounting seat is connected with the power transmission mechanism, the accommodating cavity is formed in the mounting seat, the motor is arranged in the accommodating cavity and connected with the inner wall of the mounting seat, the power shaft is connected with a transmission shaft of the motor, and the transmission shaft is connected with the power transmission mechanism;

the power transmission mechanism comprises a holding rod, a transmission cavity and a transmission shaft, the mounting seat is connected with the drill bit mounting seat through the holding rod, the transmission cavity is formed in the holding rod, the transmission shaft is arranged in the transmission cavity, and the power shaft is connected with the power output shaft through the transmission shaft.

5. The surgical knife of claim 4, wherein the power transmission mechanism further comprises one or more retaining seats mounted within the drive cavity and connected to an inner wall of the holding rod;

the transmission shaft comprises a transmission rod, bearings and a limiting disc, the bearings correspond to the limiting seats in number, the limiting disc is matched with the limiting seats, the power shaft is connected with the power output shaft through the transmission rod, the limiting disc is connected with the transmission rod through the bearings, and the limiting disc is connected with the inner wall of the holding rod through the limiting seats.

6. The surgical knife according to claim 5, wherein the number of the limiting seats is 2, and the limiting seats are respectively arranged at two ends of the holding rod.

7. The surgical knife of claim 5, wherein one end of the transmission rod close to the mounting seat and one end of the transmission rod close to the drill mounting seat are respectively provided with a first power connecting piece, one end of the power shaft close to the holding rod and one end of the power output shaft close to the holding rod are respectively provided with a second power connecting piece matched with the first power connecting piece, the power shaft is connected with the transmission rod through the matching of the first power connecting piece and the second power connecting piece, and the power output shaft is connected with the transmission rod through the matching of the second power connecting piece and the first power connecting piece.

8. The surgical knife of claim 7, wherein the first powered connector includes a connecting cavity, a connecting port, and a snap head, the snap head being connected to the drive rod, the connecting cavity opening onto the snap head, the connecting port communicating with the connecting cavity;

the second power connecting piece include with connect the connector that the chamber matches and with the block tooth that the connector matches, the connector respectively with the power shaft with power take off hub connection, the block tooth sets up on the connector, the power shaft with power take off hub all passes through connect the chamber with the cooperation of connector with the transfer line is connected and passes through the block tooth with the cooperation of connector with the transfer line meshing.

9. The surgical knife according to claim 4, wherein threaded connectors are respectively provided at both ends of the holding rod, threaded connectors are respectively provided at one end of the mounting seat near the holding rod and one end of the drill mounting seat near the holding rod, the mounting seat is connected with the holding rod through the matching of the threaded connectors and the connectors, and the holding rod is connected with the drill mounting seat through the matching of the threaded connectors and the threaded connectors.

10. The surgical knife according to claim 8, further comprising a water injection pipe connected with the water injection connector, wherein a water pipe clamping member is provided on an outer wall of the holding rod, and the water pipe clamping member is used for clamping the water injection pipe.

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