CN217186307U

CN217186307U - Drilling guide and operation drilling device

Info

Publication number: CN217186307U
Application number: CN202220596958.1U
Authority: CN
Inventors: 王靖
Original assignee: Hunan Provincial Peoples Hospital
Current assignee: Hunan Provincial Peoples Hospital
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-16
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a drill guide, which comprises a drill guide pipe, wherein the inner pipe hole of the drill guide pipe is used for a drill to penetrate through a rear end pipe orifice and to penetrate out from a front end pipe orifice; the outer side of the rear end part of the drill bit guide pipe forms a handle part, and the front end surface of the drill bit guide pipe is provided with sharp teeth protruding forwards. In the drilling guide device, the front end of the drill guide pipe in the drilling guide device is provided with the sharp teeth, so that human tissues can be fixed through the sharp teeth, the human tissues are further guaranteed to be kept at the current position, subsequent drilling is facilitated, and the stability of drilling is guaranteed. In conclusion, the drilling guide can effectively solve the problem that the fracture block is easy to move during drilling. The utility model also discloses an operation drilling equipment of including above-mentioned drilling director.

Description

Drilling guide and operation drilling device

Technical Field

The utility model relates to a surgical instruments field, more specifically say, relate to a drilling director, still relate to an operation drilling equipment including above-mentioned drilling director.

Background

Bony Bankart lesions refer to lesions of the inferior glenohumeral ligament labral complex with a tear-off fracture of the anterior-inferior glenoid, which is often caused by anterior dislocation of the shoulder, is the fundamental lesion responsible for habitual anterior instability and dislocation. The avulsion fracture of the greater tubercle of the humerus is caused by the intense contraction of the muscle group of the rotator cuff and the shoulder in the abduction external rotation position when falling down. Both of these diseases produce tiny bone fragments in the shoulder that require reduction.

In the past, the repair of the bony Bank injury and the avulsion fracture of the greater tuberosity of humerus under a shoulder arthroscope often needs to drill a hole after reduction and drive a suture anchor so as to fix a fracture block. But no special instrument is used during reduction; and the position of the fracture block can not be fixed simultaneously when drilling the small fracture block, and the problems of wrong position of the bone path, resetting requirement and the like are caused due to the position deviation of the reset fracture block caused by vibration and the like, so that the fracture fixing position is influenced, and the wound and the operation time are increased.

In summary, how to effectively solve the problem that the fracture block is easy to move during drilling is a problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the first objective of the present invention is to provide a drill guide, which can effectively solve the problem that a fracture block is easy to move during drilling, and the second objective of the present invention is to provide a surgical drilling device including the above drill guide.

In order to achieve the first object, the present invention provides the following technical solutions:

a drill guide comprises a drill guide pipe, wherein pipe holes in the drill guide pipe are used for a drill to penetrate through a pipe orifice at the rear end and to penetrate out of the pipe orifice at the front end; the outer side of the rear end part of the drill bit guide pipe forms a handle part, and the front end surface of the drill bit guide pipe is provided with sharp teeth protruding forwards.

In the drilling guide, when in use, an incision is made at the external fracture position of the shoulder joint of a patient, the drilling guide is placed in the incision, a main surgeon holds the handle part of the drilling guide so as to operate the drilling guide, and the sharp teeth at the front end of the drilling guide are used for assisting the fracture block to reset and firmly abut against the fracture block so as to prevent the fracture block from moving. The assistant is connected the steel cable afterbody with the drill bit with the electric drill, penetrates the drill bit through drill bit stand pipe rear end mouth to wear out from the front end mouth of pipe, thereby open the electric drill and punch on the fracture piece. In the drilling guide device, the front end of the drill guide pipe in the drilling guide device is provided with the sharp teeth, so that human tissues can be fixed through the sharp teeth, the human tissues are further guaranteed to be kept at the current position, subsequent drilling is facilitated, and the stability of drilling is guaranteed. In conclusion, the drilling guide can effectively solve the problem that a fracture block is easy to move during drilling.

Preferably, the tines are triangular in shape, the tines being between 0.5 mm and 1.1 mm in length.

Preferably, the tines are equilateral triangular tines with a side of 1 millimeter.

Preferably, the front end of the drill guide pipe is uniformly and continuously provided with a plurality of sharp teeth along the edge of the pipe orifice.

Preferably, the front end of the drill guide pipe is bent, so that the front end pipe orifice faces to one side; the bending angle of the front end of the drill bit guide pipe is 13 degrees, 20 degrees or 30 degrees.

Preferably, a through hole which penetrates through in the lateral direction is formed in the bending position of the front end of the drill guide pipe; the through holes are elongated holes extending in the front-back direction.

Preferably, the drill guide tube has an outer diameter of between 4.5 mm and 5.5 mm and an inner diameter of between 3.6 mm and 4 mm.

Preferably, the shank and the drill guide tube are both titanium alloy pieces; the handle part is 50 mm in length and 20 mm in outer diameter; the length of the drill bit guide pipe is 160 mm, and the length of the front end bending part is 10 mm.

In order to achieve the second object, the utility model also provides a drilling device for operation, this drilling device for operation include any kind of drilling director of the aforesaid, still include the drill bit and connect in the drive cable of drill bit rear end, the rear end of drive cable has spacing dish, the drill bit external diameter and the external diameter of drive cable all is less than the drill bit stand pipe hole diameter of drilling director, spacing dish external diameter is greater than drill bit stand pipe hole diameter. Due to the technical effects of the drill guide, the surgical drilling device with the drill guide also has corresponding technical effects.

Preferably, the drill bit is a cone with a diameter of 3 mm and a length of 20 mm, the driving cable is a bendable steel cable with a length of 235 mm and a diameter of 3 mm, and the limiting disc is a disc with a diameter of 24 mm and a thickness of 2.5 mm; the rear side of the limiting disc is connected with a metal column with the outer diameter of 3 mm and the length of 10 mm, and the metal column is used for being connected with an electric drill.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 drill guide according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure view of a drill guide tube according to an embodiment of the present invention;

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

The drawings are numbered as follows:

the drill bit guide pipe comprises a drill bit guide pipe 1, a handle part 2, sharp teeth 3, a through hole 4, a drill bit 5, a driving cable 6, a limiting disc 7 and a metal column 8.

Detailed Description

The embodiment of the utility model discloses drilling guider to the easy problem that removes of fracture piece when solving drilling effectively.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, fig. 1 is a schematic structural view of a drill guide according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional structure view of a drill guide tube according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a cabled drill according to an embodiment of the present invention.

In one embodiment, the present embodiment provides a drill guide, and in particular, a drill guide comprising a drill guide tube 1.

The drill guide tube 1 is generally a cylindrical tube, but may be an elliptical tube or a square tube. Wherein drill guide tube 1 is as the main part of drilling director, so the tube hole of drill guide tube 1 is used for playing the guide effect to drill bit 5, and is used for drill bit 5 to penetrate and can wear out from the front end mouth of pipe from the rear end mouth of pipe, and the tube hole internal diameter of drill guide tube 1 needs to satisfy corresponding the requirement promptly, and needs link up to the front end from the rear end to make drill bit 5 expose at the front end.

A shank 2 is formed outside the rear end portion of the drill guide tube 1 for an operator to hold, and generally, the outer diameter of the shank 2 needs to be significantly larger than that of the drill guide tube 1. It should be noted that the shank 2 formed by the drill guide tube 1 may be integrally formed with the drill guide tube 1; of course, the handle 2 may also be a pipe fitting, and is sleeved on the rear end of the drill guide tube 1, and the inner diameter of the pipe fitting is equal to the outer diameter of the drill guide tube 1, so that the two are matched, preferably in interference fit, to ensure that the positions of the two are relatively stable.

The front end face of the drill guide tube 1 is provided with the sharp teeth 3 protruding forwards, so that when the front end of the drill guide tube 1 abuts against human tissues, the sharp teeth 3 can be inserted into the human tissues to protect certain relative fixing effect with the human tissues. The length of the pointed teeth 3 in the front-back direction, namely the depth of the pointed teeth which can be inserted into human tissues, is set according to specific use conditions so as to meet the requirement of forming corresponding fixation on the human tissues on the basis of not damaging or slightly damaging the human tissues. Wherein the length of the tines 3 is preferably between 0.5 mm and 1.1 mm, and in particular the length may be 0.85 mm, wherein the length of the tines 3 refers to the depth to which the tines 3 can be inserted. Wherein the sharp teeth 3 are conical, triangular and the like, and the specific shape can be set according to the requirement.

In the drill guide, when in use, an incision is made at the external fracture position of a shoulder joint of a patient, the drill guide is placed in the incision, a main surgeon holds a handle part 2 of the drill guide so as to operate the drill guide, and the sharp teeth 3 at the front end of the drill guide are used for assisting the fracture block to reset and firmly abut against the fracture block so as not to move. The assistant is connected the steel cable afterbody and the electric drill of taking drill bit 5, penetrates drill bit 5 through 1 rear end mouth of pipe of drill bit stand pipe to wear out from the front end mouth of pipe, thereby open the electric drill and punch on the fracture piece. In the drilling guide device, the front end of the drill guide tube 1 is provided with the sharp teeth 3, so that human tissues can be fixed through the sharp teeth 3, and then the human tissues are kept at the current position, the subsequent drilling is facilitated, and the stability of the drilling is ensured. In conclusion, the drilling guide can effectively solve the problem that a fracture block is easy to move during drilling.

Wherein, the sharp teeth 3 are preferably triangular sharp teeth 3, and the forming is convenient. For example, a plurality of triangular cuts may be made in the pipe wall at the flat pipe end to form triangular tines 3. Wherein the tines 3 are preferably iso-waisted tines 3 and are preferably equilateral triangular tines 3. Specifically, it is preferred that the sides of the equilateral triangular tines 3 are between 0.9 mm and 1.1 mm, and it is more preferred that the sides of the equilateral triangular tines 3 are 1 mm.

One or more sharp teeth 3 can be formed at the front end of the drill bit guide pipe 1, for example, a sharp tooth 3 can be respectively arranged at the pipe orifice end and two opposite sides, or a sharp tooth 3 can be respectively arranged around the pipe orifice end. For better setting and shaping, it is preferable here to arrange a plurality of said sharp teeth 3 uniformly and continuously along the nozzle at the front end of the drill guide tube 1, e.g. a triangular part having the same size as the sharp teeth 3 but with the pointed end facing opposite direction can be removed at the flattened mouth of the tube by removing the area between adjacent sharp teeth 3, thereby forming the sharp teeth 3.

Further, for convenience of operation, it is preferable that the front end of the drill guide tube 1 is bent so that the front end opening faces to one side, that is, the front end opening faces to an angle with the extending direction of the rear main body portion of the drill guide tube 1, and the angle is a bending angle. The front end of the drill guide tube 1 is bent to conveniently extend into a narrow space for operation. The bending angle can be set according to the requirement, and the bending angle is generally between 10 degrees and 40 degrees, such as 13 degrees, 20 degrees or 30 degrees at the front end of the drill guide pipe 1. For example, the included angle between the axis of the front end nozzle and the axis of the middle rear part of the drill bit guide pipe 1 is 13 degrees, 20 degrees or 30 degrees in the drill bit guide pipe 1 of a cylindrical pipe type.

For a better and faster introduction of the drill bit 5, it is preferred here that the drill bit guide tube 1 is provided with a through hole 4 running through it laterally at the location of the bend of the front end, so that when the drill bit 5 is inserted into the guide tube of the drill bit 5, the gas on the front side of the drill bit 5 can escape through said through hole 4, avoiding that the front gas obstructs the advance of the drill bit 5. In order to avoid an excessive influence on the strength of the drill guide tube 1, the through hole 4 is preferably an elongated hole extending in the front-rear direction and is preferably provided at a bend.

The drill bit guide pipe 1 preferably adopts a pipe fitting with a round cross section, and the cross sections of the pipe fitting are equal in size in the extending direction. For example, the outer diameter of the drill guide tube 1 can be 4.5 mm to 5.5 mm, and the inner diameter can be 3.6 mm to 4 mm. Specifically, the drill guide tube 1 may have an outer diameter of 5 mm and an inner diameter of 3.8 mm.

One or both of the handle 2 and the drill guide tube 1 are made of titanium alloy or other metal parts, and plastic parts can also be adopted. Here, the shank 2 and the drill guide tube 1 are preferably made of titanium alloy, and preferably, they are integrally formed. The handle 2 is preferably between 45 mm and 55 mm in length, for example it may be 50 mm in length. While the shank 2 preferably has an outer diameter of between 18 mm and 22 mm, and preferably has an outer diameter of 20 mm. While the length of the straight rod part of the whole drill guide tube 1 is preferably between 200 mm and 210 mm, such as 160 mm in the length of the straight rod part at the front side of the shank 2; and the front end bent portion of the drill guide tube 1 has a length of 10 mm.

Based on the drilling director that provides in the above-mentioned embodiment, the utility model also provides a drilling device for operation, this drilling device for operation include arbitrary drilling director in the above-mentioned embodiment, still include drill bit 5 with connect in the drive cable 6 of 5 rear ends of drill bit, the rear end of drive cable 6 has spacing dish 7, 5 external diameter of drill bit and the external diameter of drive cable 6 all is less than 1 tube hole diameter of drill bit stand pipe of drilling director, 7 external diameters of spacing dish are greater than 1 tube hole diameter of drill bit stand pipe. Because the drilling guide in the above embodiment is adopted in the surgical drilling device, please refer to the above embodiment for the beneficial effects of the surgical drilling device.

Further, it is possible to make the drill 5 a cone with a diameter of between 2.8 mm and 3.2 mm and a length of between 18 mm and 22 mm, and it is particularly preferred that the drill 5 is a cone with a diameter of 3 mm and a length of 20 mm. Wherein the length of the drive cable 6 is between 230 mm and 240 mm and the diameter may be equal to the diameter of the drill bit 5, it is particularly preferred that the drive cable 6 is a bendable steel cable of 235 mm length and 3 mm diameter, wherein the cable is bendable to accommodate the front bending of the drill guide tube 1. Further, the diameter of the limiting disc 7 is preferably between 22 mm and 26 mm, and the thickness is between 2 mm and 3 mm, and the limiting disc 7 is a disc with a diameter of 24 mm and a thickness of 2.5 mm. Correspondingly, the rear side of the limiting disc 7 can be connected with a metal column 8 with the outer diameter of 3 mm and the length of 10 mm, so that the metal column can be connected with an electric drill.

When the bending guider is used, an incision is made at the external fracture position of the shoulder joint of a patient, the bending guider is placed through the incision, a doctor holds the handle part 2 of the bending guider so as to operate the bending guider, and the triangular teeth on the head part of the doctor are used for assisting the fracture block to reset and firmly propping against the fracture block so as to prevent the fracture block from moving. The assistant connects the tail of the drill bit 5 with a bendable steel cable with an electric drill, penetrates the drill bit 5 into the pore canal at the tail end of the drill guide tube, and starts the electric drill to punch holes on the fracture block until the limiting disc 7 reaches the tail end of the handle. After a plurality of pore channels are punched on the fracture block, the anchor with the thread is driven into the original fracture part, the thread at the tail end of the anchor is penetrated into the pore channels on the fracture block, and the thread is knotted to fix and reduce the fracture block.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The drill guide is characterized by comprising a drill guide pipe, wherein the inner pipe hole of the drill guide pipe is used for a drill to penetrate through a rear end pipe orifice and penetrate out of a front end pipe orifice; the outer side of the rear end part of the drill bit guide pipe forms a handle part, and the front end surface of the drill bit guide pipe is provided with sharp teeth protruding forwards.

2. The drill guide of claim 1, wherein the tines are triangular in shape, the tines having a length between 0.5 mm and 1.1 mm.

3. The drill guide of claim 2, wherein the tines are equilateral triangular tines having a side of 1 millimeter.

4. The drill guide according to claim 3, wherein the drill guide tube forward end is provided with a plurality of said tines uniformly and continuously along the nozzle edge.

5. The drill guide according to claim 3, wherein the drill guide tube has a front end bent so that the front end orifice is biased to one side; the bending angle of the front end of the drill bit guide pipe is 13 degrees, 20 degrees or 30 degrees.

6. The drill guide according to claim 5, wherein a through hole is formed at the bending position of the front end of the drill guide pipe in a lateral direction; the through holes are elongated holes extending in the front-back direction.

7. The drill guide according to any of claims 1-6, wherein the drill guide tube has an outer diameter of between 4.5 mm and 5.5 mm and an inner diameter of between 3.6 mm and 4 mm.

8. The drill guide according to claim 7, wherein the shank and the drill guide tube are titanium alloy pieces; the handle part is 50 mm in length and 20 mm in outer diameter; the length of the drill bit guide pipe is 160 mm, and the length of the front end bending part is 10 mm.

9. A surgical drill comprising a drill guide according to any one of claims 1 to 8, a drill bit and a drive cable connected to the rear end of the drill bit, the rear end of the drive cable having a limiting disc, the drill bit outer diameter and the drive cable outer diameter each being smaller than the drill guide tube hole diameter of the drill guide, the limiting disc outer diameter being larger than the drill guide tube hole diameter.

10. The surgical drilling apparatus of claim 9, wherein the drill bit is a cone having a diameter of 3 mm and a length of 20 mm, the drive cable is a bendable steel cable having a length of 235 mm and a diameter of 3 mm, and the retention disc is a disc having a diameter of 24 mm and a thickness of 2.5 mm; the rear side of the limiting disc is connected with a metal column with the outer diameter of 3 mm and the length of 10 mm, and the metal column is used for being connected with an electric drill.