CN210228253U

CN210228253U - Nasal bone cutter

Info

Publication number: CN210228253U
Application number: CN201920823487.1U
Authority: CN
Inventors: Hongyu Xue; 薛红宇
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2019-06-01
Filing date: 2019-06-01
Publication date: 2020-04-03
Anticipated expiration: 2029-06-01

Abstract

The utility model discloses a nasal bone cutter, which relates to the technical field of plastic surgery tools and comprises a handle, wherein one end of the handle is connected with a first support rod and a second support rod which are parallel and opposite, and a space of at least one centimeter is reserved between the first support rod and the second support rod; one end of the first supporting rod, which is far away from the handle, is connected with a cutter body, and the cutter body extends out to one side which deviates from the second supporting rod. The utility model discloses have the effect that can chisel the bone according to accurate position and angle.

Description

Nasal bone cutter

Technical Field

The utility model belongs to the technical field of plastic surgery instrument's technique and specifically relates to a nasal bone cutter is related to.

Background

The nasal bone pushing operation is to cut off the connection part of the nasal bone and the facial bone at the two sides of the nasal alar, then to draw the nasal bone separated from the two sides to the middle, and to fix the nasal bone after displacement and wait for the bone to heal. For people with wider nasal wings, the nasal bone pushing operation can achieve the effect of reducing the width of the nasal wings, and meanwhile, the height of the nose bridge can be improved.

In the prior art, when the nasal bone pushing operation is performed, a nasal bone knife is adopted to chisel upwards from the root parts of two side nasal wings until the nasal bone is chiseled off. However, the angle of the nasal osteotome is not easy to control in the process of chiseling, chiseling is easy to deviate in the operation process, and even the quality of chiseling at the two sides of the nasal alar is seriously inconsistent, so that the operation effect is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nasal bone cutter, it has the effect that can chisel the bone according to accurate position and angle.

The above object of the present invention can be achieved by the following technical solutions:

a nasal bone cutter comprises a handle, wherein one end of the handle is connected with a first supporting rod and a second supporting rod which are parallel and opposite, and a distance of at least one centimeter is reserved between the first supporting rod and the second supporting rod; one end of the first supporting rod, which is far away from the handle, is connected with a cutter body, and the cutter body extends out to one side which deviates from the second supporting rod.

By adopting the technical scheme, after the incision is made in the nostril, the cutter body extends into the space between the skin and the nasal bone and is aligned to the position to be chiseled off, and the cutter body points to the nasal cavity from the outer side of the nasal wing instead of the root of the nasal bone to the upper part of the skull. The second strut is then struck until the nasal bone is chipped. In the process, the cutter body can be always positioned at the joint of the nasal bone and the facial bone, the angle between the cutter body and the nasal bone can be known by referring to the second supporting rod, and then the bone can be chiseled according to the accurate position and angle

The utility model discloses further set up to: the cutter body with first bracing piece is detachable to be connected.

Through adopting above-mentioned technical scheme, because the cutter body damages great at the chisel bone in-process, so can in time change to the cutter body of damage.

The utility model discloses further set up to: a positioning through hole is formed in the rod body of the second supporting rod, the axis of the positioning through hole points to the middle part of the cutter body, and a positioning steel nail is arranged in the positioning through hole in a penetrating mode; one end of the second supporting rod, which is far away from the handle, is bent towards one side far away from the cutter body and is fixed with a stress block, the stress block is a flat cylinder, the diameter of the stress block is larger than the rod diameter of the second supporting rod, and the axis of the stress block is parallel to the axis of the positioning through hole.

Through adopting above-mentioned technical scheme, strike the atress piece and can make the effort that is transmitted to first bracing piece by the second bracing piece more accurate, because directly strike the second bracing piece and probably cause to strike partially and lead to transmitting the direction of force of first bracing piece to change.

The utility model discloses further set up to: the end face, away from the handle, of the first support rod is provided with a slot which is communicated with the surface of one side, away from the second support rod, of the first support rod; the cutter body part extends into the slot, and the thickness of the cutter body is consistent with the width of the slot; at least two first through holes and a threaded through hole are respectively formed in two opposite side wall surfaces in the slot, a second through hole matched with the first through hole is formed in the cutter body, and a bolt capable of penetrating through the first through hole and the second through hole is screwed in the threaded through hole.

Through adopting above-mentioned technical scheme, the axial force that the bolt produced at the in-process of constantly closing soon can force the relative both ends face of slot to remove in opposite directions, and then presss from both sides the cutter body in the slot tightly, and simultaneously, two at least bolts also can play the effect of preventing changeing.

The utility model discloses further set up to: the end face, away from the handle, of the first supporting rod is provided with a sliding groove, the sliding groove is communicated with the slot, and the length direction of the sliding groove is consistent with that of the first supporting rod; the cutter body is fixed with the slider with spout looks adaptation on, when the slider is located the spout and the cutter body supports in the tank bottom of slot, first through-hole is coaxial with the second through-hole.

Through adopting above-mentioned technical scheme, be convenient for fix a position the cutter body. When the cutter body is inserted into the slot, the position of the cutter body does not need to be adjusted, and the cutter body only needs to slide along the sliding groove to abut against the bottom of the slot.

The utility model discloses further set up to: the bolt head of the bolt sinks into the first through hole; the screw of the bolt does not protrude from the threaded through hole.

Through adopting above-mentioned technical scheme, prevent that the bolt from causing secondary damage to the human body.

The utility model discloses further set up to: the rod wall of the first supporting rod gradually shrinks towards one side far away from the handle.

Through adopting above-mentioned technical scheme, be convenient for stretch into the incision in nostril and the nostril with first bracing piece.

To sum up, the utility model discloses a beneficial technological effect does:

1. the cutter body extends between the nasal bone and the skin, the second support rod is knocked outside the nose, and a doctor can chisel bones according to the accurate position and angle;

2. the cutter body is detachably connected with the first supporting rod, so that the cutter body can be replaced by a new cutter body after being damaged, and waste is avoided;

3. the force can be transmitted to the knife body according to the accurate direction when the force is knocked to the force-bearing block;

4. the sliding groove and the sliding block can ensure that the cutter body can only be installed in the slot according to a determined posture, so that repeated installation caused by installation errors can be avoided.

Drawings

FIG. 1 is a schematic view of a nasal bone cutter;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial exploded view of the nasal bone cutter 1;

fig. 4 is a partial exploded view of a nasal bone cutter 2.

In the figure, 1, a handle; 11. a hand-held portion; 12. a connecting portion; 2. a first support bar; 21. a slot; 22. a first through hole; 23. a threaded through hole; 24. a chute; 3. a second support bar; 31. positioning the through hole; 4. a cutter body; 41. a plug-in part; 411. a second through hole; 412. a slider; 42. a working part; 421. a blade; 5. a stress block; 6. a bolt; 7. and (5) positioning the steel nail.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a nasal bone cutter, which comprises a handle 1 in a T shape, a first support rod 2 and a second support rod 3.

The handle 1 includes a grip portion 11 at a lower end of the "T" shape for hand gripping and a connecting portion 12 at an upper end of the "T" shape. The grip 11 is integrally formed with the connecting portion 12. The connecting portion 12 is used for connecting the first support bar 2 and the second support bar 3.

The first support rod 2 is opposite to the second support rod 3 and is parallel to the hand holding part 11, and the first support rod 2 and the second support rod 3 are respectively integrally formed with two ends of the connecting part 12. A distance of at least one centimeter is reserved between the first support rod 2 and the second support rod 3, the distance of one centimeter can ensure that the flexible tissue of the nose extends between the first support rod 2 and the second support rod 3, but preferably, a distance of two centimeters is reserved between the first support rod 2 and the second support rod 3. The two cm spacing is convenient for the surgeon to operate during the operation, but does not allow the first support bar 2 to be too far from the second support bar 3.

The wall of the first support rod 2 gradually shrinks towards the side far away from the handle 1. One end of the first supporting rod 2 departing from the handle 1 is detachably connected with a cutter body 4. Referring to fig. 2, 3 and 4, a rectangular slot 21 is formed in an end surface of the first support rod 2 away from the handle 1, and the slot 21 is communicated with a surface of the first support rod 2 away from the second support rod 3. Two first through holes 22 and threaded through holes 23 which are matched with each other are respectively formed in two opposite side wall surfaces in the slot 21, the bolt 6 penetrating through the first through hole 22 is screwed in the threaded through hole 23, and the first through hole 22 is a countersunk hole. Furthermore, a sliding groove 24 is formed in the end face, away from the handle 1, of the first support rod 2, and the sliding groove 24 is communicated with the slot 21. The length direction of the slide groove 24 coincides with the length direction of the first support rod 2.

The cutter body 4 is a flat plate structure, and the cutter body 4 comprises a rectangular insertion part 41 and an isosceles trapezoid working part 42. The socket part 41 is integrally formed with the working part 42, and the lower bottom of the working part 42 is connected to the socket part 41. The blade body 4 is coupled to the first support rod 2 such that the insertion part 41 is inserted into the insertion groove 21. The thickness of the insertion part 41 is the same as the width of the slot 21, and a sliding block 412 is welded on the insertion part 41 and is provided with two second through holes 411. The sliding block 412 can be matched and slidably connected with the sliding groove 24; the second through hole 411 coincides with the aperture of the first through hole 22. When the sliding block 412 is located in the sliding groove 24 and the inserting portion 41 abuts against the bottom of the slot 21, the two second through holes 411 are coaxial with the two first through holes 22.

After the bolt 6 passes through the first through hole 22 and the second through hole 411 and is screwed in the threaded through hole 23, the axial force generated by the bolt 6 will force the two opposite side wall surfaces of the slot 21 to move oppositely, so as to clamp the cutter body 4 in the slot 21, and meanwhile, the two bolts 6 can also play a role in preventing rotation. The sliding block 412 slides in the sliding groove 24 to play a role in positioning. When the cutter body 4 is connected to the first support rod 2, the two first through holes 22 can be directly opposite to the second through hole 411 by aligning the sliding block 412 with the sliding groove 24 and moving.

Referring to fig. 1, a positioning through hole 31 is formed in the rod body of the second support rod 3, the axis of the positioning through hole 31 points to the middle of the cutter body 4, a positioning steel nail 7 penetrates through the positioning through hole 31, and the end face, facing the cutter body 4, of the positioning steel nail 7 is an arc end face. One end of the second support rod 3 departing from the handle 1 is bent towards one side far away from the cutter body 4 and is welded with a stress block 5, the stress block 5 is a flat cylinder, the diameter of the stress block 5 is larger than the rod diameter of the second support rod 3, and the axis of the stress block 5 is parallel to the axis of the positioning through hole 31.

The principle of the embodiment is as follows: after the incision is made in the nostril, the cutter body 4 extends into the space between the skin and the nasal bone, and the cutter body 4 points to the nasal cavity from the outer side of the nasal alar. The position of the cutter body 4 to be chiseled off can be accurately determined by the positioning steel nail 7, and the angle between the cutter body 4 and the nose bone can be determined. The force piece 5 is then tapped until the nasal bone is chipped. In the process, the cutter body 4 can be always accurately positioned at the joint of the nasal bone and the facial bone.

In the knocking process, the direction of force transmitted to the first support rod 2 is changed due to the fact that the second support rod 3 is directly knocked and deviated, and therefore the acting force transmitted to the first support rod 2 by the second support rod 3 can be more accurate due to the fact that the force is knocked and stressed by the force-bearing block 5.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A nasal bone cutter, comprising a handle (1), characterized in that: one end of the handle (1) is connected with a first supporting rod (2) and a second supporting rod (3) which are parallel and opposite, and a distance of at least one centimeter is reserved between the first supporting rod (2) and the second supporting rod (3); one end of the first supporting rod (2) far away from the handle (1) is connected with a cutter body (4), and the cutter body (4) extends out to one side deviating from the second supporting rod (3).

2. The nasal bone cutter of claim 1, wherein: the cutter body (4) is detachably connected with the first supporting rod (2).

3. The nasal bone cutter of claim 1, wherein: a positioning through hole (31) is formed in the rod body of the second support rod (3), the axis of the positioning through hole (31) points to the middle of the cutter body (4), and a positioning steel nail (7) penetrates through the positioning through hole (31); one end of the second supporting rod (3) departing from the handle (1) is bent towards one side far away from the cutter body (4) and is fixed with a stress block (5), the stress block (5) is a flat cylinder, the diameter of the stress block (5) is larger than the rod diameter of the second supporting rod (3), and the axis of the stress block (5) is parallel to the axis of the positioning through hole (31).

4. The nasal bone cutter of claim 2, wherein: a slot (21) is formed in the end face, away from the handle (1), of the first support rod (2), and the slot (21) is communicated with the surface of one side, away from the second support rod (3), of the first support rod (2); the cutter body (4) extends into the slot (21), and the thickness of the cutter body (4) is consistent with the width of the slot (21); at least two first through holes (22) and a threaded through hole (23) are respectively formed in two opposite side wall surfaces in the slot (21), a second through hole (411) matched with the first through hole (22) is formed in the cutter body (4), and a bolt (6) capable of penetrating through the first through hole (22) and the second through hole (411) is screwed in the threaded through hole (23).

5. The nasal bone cutter of claim 4, wherein: the end face, departing from the handle (1), of the first support rod (2) is provided with a sliding groove (24), the sliding groove (24) is communicated with the slot (21), and the length direction of the sliding groove (24) is consistent with that of the first support rod (2); a sliding block (412) matched with the sliding groove (24) is fixed on the cutter body (4), and when the sliding block (412) is positioned in the sliding groove (24) and the cutter body (4) abuts against the bottom of the slot (21), the first through hole (22) and the second through hole (411) are coaxial.

6. The nasal bone cutter of claim 4, wherein: the head of the bolt (6) is sunk into the first through hole (22); the screw of the bolt (6) does not protrude from the threaded through hole (23).

7. The nasal bone cutter of claim 1, wherein: the rod wall of the first supporting rod (2) is gradually contracted towards one side far away from the handle (1).