CN114343777A

CN114343777A - Meniscus forming cutter

Info

Publication number: CN114343777A
Application number: CN202111666941.5A
Authority: CN
Inventors: 刘亚坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-15
Anticipated expiration: 2041-12-31
Also published as: CN114343777B

Abstract

The invention discloses a meniscus forming cutter, which comprises a support, wherein the support comprises a support, a support cylinder is fixedly arranged inside one end of the support, an A-shaped head is fixedly arranged at the other end of the support cylinder, a rectangular groove is formed inside the A-shaped head, a B-shaped frame is hinged to the inner side of one end of the support cylinder, a cutting ring is arranged at the bottom of the B-shaped frame, an arc-shaped rail groove is formed in the inner sides of the B-shaped frame and the cutting ring, a cutter is movably arranged inside the arc-shaped rail groove, and a Y-shaped frame is arranged at the top of the cutter. Through the double-screw bolt and the screw thread section of thick bamboo that set up, this connection is similar to screw bolt and nut, when the double-screw bolt rotates, rotate the seat and eliminate the turning force for thin steel pole to make it only receive the pulling force, the pulling mode of this screw thread is convenient for carry out the operation cutting, increase the controllability, and the setting of screw thread can make the operation flow produce the auto-lock, reaction force when having avoided the cutting kick-backs, and this pulling mode can replace drum and cylindrical straight pull mode equally, has increased the selectivity of operation.

Description

Meniscus forming cutter

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a meniscus forming knife.

Background

The medical equipment refers to instruments, equipment, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related articles directly or indirectly applied to the human body, and comprises required computer software, wherein the effects are mainly obtained in a physical mode and other modes, not in a pharmacological, immunological or metabolic mode, or are only assisted by the modes, so that the diagnosis, prevention, monitoring, treatment or alleviation of diseases are achieved; diagnosis, monitoring, treatment, mitigation, or functional compensation of injury; examination, replacement, regulation or support of a physiological structure or physiological process; support or maintenance of life; the meniscus is a fibrous cartilage with 2-month tooth shape, is positioned on the inner side and outer side of the tibial plateau, has a triangular cross section, is thick at the outer side and thin at the inner side, is slightly concave at the upper side so as to be matched with the femoral condyle, and is flat at the lower side and connected with the tibial plateau. This configuration provides the femoral condyle with a deep depression in the tibial plateau, thereby increasing the stability of the spherical femoral condyle and tibial plateau, and the anterior and posterior ends of the meniscus are attached to the non-articular surfaces of the medial portion of the tibial plateau, anterior and posterior to the intercondylar eminence, respectively, which may be referred to as the anterior and posterior horn of the meniscus.

In the operation of trimming and forming the meniscus, surgical tools for cutting are often needed, the existing method generally adopts a corresponding scalpel for cutting, and compared with the traditional use mode, the operation is difficult, and the shape of the meniscus cannot be cut, so that certain operation difficulty is caused, and the meniscus forming knife is provided.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a meniscus forming cutter, which solves the problems that the operation is difficult and the shape of a meniscus cannot be cut.

In order to achieve the purpose, the invention provides the following technical scheme: the meniscus forming cutter comprises a support, wherein a support is fixedly mounted inside one end of the support, an A-type head is fixedly mounted at the other end of the support, a rectangular groove is formed in the A-type head, a B-type frame is hinged to the inner side of one end of the support, a cutting ring is arranged at the bottom of the B-type frame, an arc-shaped rail groove is formed in the inner sides of the B-type frame and the cutting ring, a cutter is movably mounted inside the arc-shaped rail groove, a Y frame is arranged at the top of the cutter, a thin steel rod is hinged to the other end of the Y frame, a threaded cylinder is fixedly sleeved inside one end of the support, a stud is in threaded connection inside the threaded cylinder, a round cap is fixedly mounted at one end of the stud, a rotating seat is fixedly mounted at the other end of the stud, a rotating roller is hinged inside the support, a manual frame is fixedly mounted at the bottom of the outer side of the rotating roller, and a fixed shaft is fixedly mounted inside the rotating roller, the outside of fixed axle is provided with the soft post, the other end of soft post articulates there is the steel pull rod, the inside fixed mounting of live-rollers has the cardboard, the outside activity of steel pull rod has cup jointed the fixed ring board, the outside of steel pull rod has cup jointed the return spring that contracts, the fixed cover in the outside of steel pull rod has connect movable ring board.

Preferably, the A-shaped head is a rectangular frame, and the inner side of the rectangular groove is attached to two sides of the cutting ring.

Through adopting above-mentioned technical scheme, the advantage is in that the rectangular channel provides the antiskid for the region of A type head subsides in the meniscus bottom, has increased the facility when agreeing with.

Preferably, the B-shaped frame is in a door shape, and two sides of the B-shaped frame are both arc-shaped bulges.

Through adopting above-mentioned technical scheme, the advantage lies in that the door style of calligraphy can be so that wrap up the meniscus that needs the excision.

Preferably, the cutter is a single-side edge and is arc-shaped, and the arc-shaped rail groove is matched with the radians of the cutter and the cutting ring.

By adopting the technical scheme, the single-side cutting edge cutting device has the advantages that the single-side cutting edge of the cutter is arranged inwards, single-side cutting is carried out under the condition of pulling movement, and the region which is damaged on two sides and does not need to be cut is avoided.

Preferably, the opening and closing angle of the A-shaped head and the B-shaped frame is from degree to degree.

By adopting the technical scheme, the cutting device has the advantages of being convenient for adaptation during integral cutting and enabling the cutting to be in a controllable range.

Preferably, the top of the B-shaped frame far away from the A-shaped head is 1 CM.

By adopting the technical scheme, the meniscus cutting machine has the advantages that the length of the meniscus after the cutting is controlled to be about 1cm, different sizes can be set according to different cutting requirements, and different operation cutting requirements can be met.

Preferably, one end of the thin steel rod, which is far away from the Y-shaped frame, is movably sleeved in the rotating seat.

Through adopting above-mentioned technical scheme, the advantage lies in that thin steel pole provides the pulling force moment for the Y frame, has increased the mobility of device.

Preferably, the soft column is in contact with one end of the clamping plate, and one end, far away from the soft column, of the steel pull rod is hinged to the inner side of the B-shaped frame.

Through adopting above-mentioned technical scheme, the advantage lies in that the length change of cardboard can change, and is spacing to opening and shutting of B type frame.

Preferably, the outer side of the fixed ring plate is fixed inside the support cylinder, one end of the retraction spring is fixedly installed on one side of the fixed ring plate, and the other end of the retraction spring is fixedly installed on the other side of the movable ring plate.

Through adopting above-mentioned technical scheme, the advantage lies in that the fixed crown plate is fixed and is provided the fulcrum for the spring that contracts in a section of thick bamboo to can provide certain spacing for the steel pull rod, be convenient for spur more smoothly.

Preferably, two guide rail wheels are movably mounted inside the supporting cylinder.

By adopting the technical scheme, the guide rail wheel has the advantages that the guide rail wheel can provide a rotary pointing for the thin steel rod and the steel pull rod, and the arrangement is convenient for stabilizing the moving position.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arranged A-shaped head, during operation, an operator can extend the support cylinder into an operation incision after disinfecting an appliance when a meniscus needs to be cut in an operation, attach the A-shaped head to the bottom of the meniscus needing to be cut, hold the device with one hand and hold the manual frame, the manual frame rotates by taking the rotating roller as a hinged point, then drive the fixed shaft to rotate, the fixed shaft drives the soft column to rotate, the soft column remotely rotates under the limit of the clamping plate and pulls the pull steel rod to move, the pull steel rod applies an acting force to one end of the B-shaped frame, the B-shaped frame is gradually attached to the A-shaped head on one side under the action of the hinged shaft, the annular cutter at the bottom is matched with the meniscus needing to be cut, then the round cap rotates to drive the stud to rotate, the stud moves in a threaded fit manner on the inner side of the threaded cylinder and further gradually extends outwards, and the thin steel rod applies the acting force to the inner side of the Y-shaped frame when being pulled, the Y frame is applyed the pulling force in the inboard of cutter for the cutter slides in arc rail groove inside, and the area that the meniscus needs to be amputated is cut to the single face sword of being convenient for, after take out the device can, this scheme can be so that the tangent plane produces the arc when the meniscus cuts, and for making cutting plane and thighbone laminate mutually, convenient to use.

2. Through the double-screw bolt and the screw thread section of thick bamboo that set up, this connection is similar to screw bolt and nut, rotates the seat and eliminates the turning force for thin steel pole when the double-screw bolt to make it only receive the pulling force, the pulling mode of this screw thread is convenient for carry out the operation cutting, increases the controllability, and the setting of screw thread can make the operation flow produce the auto-lock, reaction force when having avoided the cutting kick-backs, and this pulling mode can replace drum and cylindrical straight pull mode equally, has increased the alternative of operation.

3. Through the fixed ring board that sets up, the fixed ring board is fixed and is provided the fulcrum for the spring that contracts to can provide certain spacing for the steel pull rod, be convenient for stimulate more smoothly, and the spring that contracts is applyed elasticity in one side of activity crown plate, makes it can produce certain displacement at moving the steel pull rod, the holistic use of being convenient for, and can apply the relative displacement volume between manual frame and the B type frame.

Drawings

FIG. 1 is a front perspective structural view of the present invention;

FIG. 2 is a schematic top view of a partial structure of the present invention

FIG. 3 is a front cross-sectional structural view of the present invention;

FIG. 4 is a schematic right sectional view of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

fig. 6 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

In the figure: 1. a support; 2. supporting a cylinder; 3. a retraction spring; 4. a rectangular groove; 5. a type A head; 6. a cutter; 7. cutting with a ring cutter; 8. a manual frame; 9. a rotating roller; 10. a stud; 11. a round cap; 12. a threaded barrel; 13. a B-shaped frame; 14. a thin steel rod; 15. a Y frame; 16. a rotating seat; 17. a soft column; 18. a fixed shaft; 19. an arc-shaped rail groove; 20. pulling a steel rod; 21. clamping a plate; 22. a guide rail wheel; 23. a stationary ring plate; 24. a movable ring plate.

Detailed Description

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 apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, a meniscus forming cutter comprises a support 1, a support tube 2 is fixedly mounted inside one end of the support 1, an a-shaped head 5 is fixedly mounted inside the other end of the support tube 2, a rectangular groove 4 is arranged inside the a-shaped head 5, a B-shaped frame 13 is hinged inside one end of the support tube 2, a cutting ring 7 is arranged at the bottom of the B-shaped frame 13, an arc-shaped rail groove 19 is formed inside the B-shaped frame 13 and the cutting ring 7, a cutter 6 is movably mounted inside the arc-shaped rail groove 19, a Y-shaped frame 15 is arranged at the top of the cutter 6, a thin steel rod 14 is hinged at the other end of the Y-shaped frame 15, a threaded tube 12 is fixedly sleeved inside one end of the support 1, a stud 10 is connected inside the threaded tube 12, a round cap 11 is fixedly mounted at one end of the stud 10, a rotating seat 16 is fixedly mounted at the other end of the stud 10, a rotating roller 9 is hinged inside the support 1, a manual frame 8 is fixedly mounted at the bottom outside the rotating roller 9, the inside fixed mounting of live-rollers 9 has fixed axle 18, and the outside of fixed axle 18 is provided with soft post 17, and the other end of soft post 17 articulates there is a steel pull rod 20, and the inside fixed mounting of live-rollers 9 has cardboard 21, and the outside activity of steel pull rod 20 is cup jointed fixed ring board 23, and the outside of steel pull rod 20 is cup jointed retraction spring 3, and the outside of steel pull rod 20 is cup jointed movable ring board 24.

The working principle of the technical scheme is as follows:

during operation, an operator can insert the support tube 2 into an operation incision after disinfecting an instrument when a meniscus needs to be cut, attach the A-shaped head 5 to the bottom of the meniscus needing to be cut, hold the device with one hand, hold the manual frame 8, enable the manual frame 8 to rotate by taking the rotating roller 9 as a hinge point, then drive the fixed shaft 18 to rotate, drive the soft column 17 to rotate, enable the soft column 17 to rotate remotely under the limit of the clamping plate 21, pull the steel pull rod 20 to move, enable the steel pull rod 20 to apply acting force to one end of the B-shaped frame 13, enable the B-shaped frame 13 to be gradually attached to the A-shaped head 5 on one side under the action of the hinge shaft, enable the annular knife 7 at the bottom to be matched with the meniscus needing to be cut, then rotate the round cap 11, enable the round cap 11 to drive the stud 10 to rotate, enable the stud 10 to move in a thread fit manner on the inner side of the threaded tube 12 and further extend outwards gradually, the connection is similar to a bolt and nut, when the stud 10 is rotated, the rotating seat 16 removes the rotating force for the thin steel rod 14, and makes it only under tension, the pulling mode of the thread is convenient for operation cutting, the adjustability is increased, the thread can be arranged to enable the operation flow to generate self locking, the rebound of the reaction force during cutting is avoided, and the pulling mode can also replace the straight pulling mode of the cylinder and the column, thereby increasing the selectivity of the operation, while the thin steel rod 14 applies a force to the inside of the Y frame 15 when being pulled, the Y frame 15 applies a pulling force to the inside of the cutting knife 6, so that the cutter 6 slides in the arc-shaped rail groove 19, the area of the meniscus to be cut can be conveniently cut by the single-sided edge, and the device is taken out after the cutting is finished, this scheme can make the tangent plane produce the arc when the meniscus cuts to for making cutting plane and thighbone laminate mutually, convenient to use.

In another embodiment, as shown in fig. 1 and 2, the a-head 5 is a rectangular frame, and the inside of the rectangular groove 4 is attached to both sides of the cutting ring 7.

In the moving and cutting process of the cutting ring 7 and the B-shaped frame 13, the cutting ring 7 is matched with the rectangular groove 4 and attached to the inner side of the A-shaped head 5, so that preliminary positioning cutting is facilitated.

In another embodiment, as shown in fig. 2, the B-frame 13 has a door shape, and both sides of the B-frame 13 are arc-shaped.

The arc-shaped bulges on the two sides of the B-shaped frame 13 can facilitate providing certain outward extrusion force when penetrating into the tissue, and the menisci needing to be cut can be wrapped by the portal shape.

In another embodiment, as shown in figure 3, the cutting blade 6 is a single-sided blade and the arcuate track 19 is adapted to the curvature of the cutting blade 6 and the cutting ring 7.

The single-side edge of the cutter 6 is towards the inner side, single-side cutting is carried out under the condition of pulling movement, the damage in double sides is avoided, the area which does not need cutting is avoided, the arc-shaped rail groove 19 is matched with the arcs of the cutter 6 and the cutting ring 7, two-side limitation on the cutting shape of the meniscus is facilitated, and the cutting controllability is facilitated.

In another embodiment, as shown in fig. 1, 2 and 4, the opening and closing angle of the a-type head 5 and the B-type frame 13 is 30 to 90 degrees.

The numerical value is the limit of the opening and closing cutting of the A-type head 5 and the B-type frame 13, so that the whole cutting machine is convenient to adapt to the whole cutting process, and the cutting is in a controllable range.

In another embodiment, as shown in fig. 2 and 4, the top of the B-frame 13 away from the a-head 5 is 1 CM.

This line length 1cm, the effect is that meniscus length after the control is pruned is about 1cm to can set up different sizes according to the cutting demand of difference, and adapt to different operation cutting demands, like the different patients of adaptation, prepare the device of multiple size, the purpose remains the meniscus length 1cm, and high 0.5cm, and the meniscus size after the meniscal sword of different models is pruned can be different, namely can make multiple model.

In another embodiment, as shown in fig. 2 and 4, the end of the thin steel rod 14 away from the Y-frame 15 is movably sleeved inside the rotating seat 16.

The thin steel rod 14 provides a pulling torque for the Y frame 15, the mobility of the device is increased, and the rotating seat 16 is similar to a shaft seat under the condition of eliminating the rotating torque of the stud 10, so that the thin steel rod 14 can be pulled conveniently.

In another embodiment, as shown in figures 4 and 5, the bollard 17 is in contact with one end of the catch plate 21 and the end of the drawbar 20 remote from the bollard 17 is hinged inside the B-shaped frame 13.

The flexible column 17 moves along the outer edge of the rotating roller 9 under the limit of the clamping plate 21, the length of the clamping plate 21 can be changed, the B-shaped frame 13 can be limited to open and close, and the steel pulling rod 20 can pull the position of the B-shaped frame 13 to change the opening and closing angle of the B-shaped frame.

In another embodiment, as shown in fig. 4 and 6, the outside of the fixed ring plate 23 is fixed inside the branch tube 2, one end of the retraction spring 3 is fixedly installed at one side of the fixed ring plate 23, and the other end of the retraction spring 3 is fixedly installed at the other side of the movable ring plate 24.

The fixed ring plate 23 is fixed inside the support tube 2 to provide a fulcrum for the retraction spring 3, and can provide a certain limit for the steel pulling rod 20, so that the steel pulling rod can be pulled more smoothly, the retraction spring 3 applies elastic force to one side of the movable ring plate 24, so that the movable ring plate can generate a certain displacement on the steel pulling rod 20, the integral use is facilitated, and the relative displacement between the manual frame 8 and the B-shaped frame 13 can be applied.

In another embodiment, as shown in fig. 4, two guide wheels 22 are movably installed inside the support tube 2.

The guide wheels 22 provide a rotational pointing for the rod 14 and the rod 20, which facilitates stable movement, and the rod 14 and the rod 20 have a deformable structure that facilitates force stabilization and can be replaced with materials of the same effect.

The working principle and the using process of the invention are as follows: during operation, an operator can insert the support tube 2 into an operation incision after disinfecting an instrument when a meniscus needs to be cut, attach the A-shaped head 5 to the bottom of the meniscus needing to be cut, hold the device with one hand, hold the manual frame 8, enable the manual frame 8 to rotate by taking the rotating roller 9 as a hinge point, then drive the fixed shaft 18 to rotate, drive the soft column 17 to rotate, enable the soft column 17 to rotate remotely under the limit of the clamping plate 21, pull the steel pull rod 20 to move, enable the steel pull rod 20 to apply acting force to one end of the B-shaped frame 13, enable the B-shaped frame 13 to be gradually attached to the A-shaped head 5 on one side under the action of the hinge shaft, enable the annular knife 7 at the bottom to be matched with the meniscus needing to be cut, then rotate the round cap 11, enable the round cap 11 to drive the stud 10 to rotate, enable the stud 10 to move in a thread fit manner on the inner side of the threaded tube 12 and further extend outwards gradually, the connection is similar to a bolt and nut, when the stud 10 is rotated, the rotating seat 16 removes the rotating force for the thin steel rod 14, and makes it only under tension, the pulling mode of the thread is convenient for operation cutting, the adjustability is increased, the thread can be arranged to enable the operation flow to generate self locking, the rebound of the reaction force during cutting is avoided, and the pulling mode can also replace the straight pulling mode of the cylinder and the column, thereby increasing the selectivity of the operation, while the thin steel rod 14 applies a force to the inside of the Y frame 15 when being pulled, the Y frame 15 applies a pulling force to the inside of the cutting knife 6, so that the cutter 6 slides in the arc-shaped rail groove 19, the area of the meniscus to be cut can be conveniently cut by the single-sided edge, and the device is taken out after the cutting is finished, this scheme can make the tangent plane produce the arc when the meniscus cuts to for making cutting plane and thighbone laminate mutually, convenient to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Meniscus shaping sword, including support (1), its characterized in that: a support cylinder (2) is fixedly arranged inside one end of a support (1), an A-shaped head (5) is fixedly arranged at the other end of the support cylinder (2), a rectangular groove (4) is arranged inside the A-shaped head (5), a B-shaped frame (13) is hinged to the inner side of one end of the support cylinder (2), a cutting ring (7) is arranged at the bottom of the B-shaped frame (13), an arc-shaped rail groove (19) is formed in the inner sides of the B-shaped frame (13) and the cutting ring (7), a cutter (6) is movably arranged inside the arc-shaped rail groove (19), a Y frame (15) is arranged at the top of the cutter (6), a thin steel rod (14) is hinged to the other end of the Y frame (15), a threaded cylinder (12) is fixedly sleeved inside one end of the support (1), a stud (10) is connected to the inner thread of the threaded cylinder (12), a round cap (11) is fixedly arranged at one end of the stud (10), a rotating seat (16) is fixedly arranged at the other end of the stud (10), the inside of support (1) articulates there is live-rollers (9), the bottom fixed mounting in the live-rollers (9) outside has manual frame (8), the inside fixed mounting of live-rollers (9) has fixed axle (18), the outside of fixed axle (18) is provided with flexible post (17), the other end of flexible post (17) articulates there is steel pull rod (20), the inside fixed mounting of live-rollers (9) has cardboard (21), fixed ring board (23) have been cup jointed in the outside activity of steel pull rod (20), the outside of steel pull rod (20) has been cup jointed and has been retracted spring (3), the outside of steel pull rod (20) is fixed cup jointed movable ring board (24).

2. The meniscus forming knife of claim 1, wherein: the A-shaped head (5) is a rectangular frame, and the inner side of the rectangular groove (4) is attached to the two sides of the cutting ring (7).

3. The meniscus forming knife of claim 1, wherein: the B-shaped frame (13) is in a door shape, and two sides of the B-shaped frame (13) are arc-shaped bulges.

4. The meniscus forming knife of claim 1, wherein: the cutter (6) is a single-side edge, the cutter (6) is arc-shaped, and the arc-shaped rail groove (19) is matched with the radians of the cutter (6) and the cutting ring (7).

5. The meniscus forming knife of claim 1, wherein: the opening and closing angle of the A-shaped head (5) and the B-shaped frame (13) is 30-90 degrees.

6. The meniscus forming knife of claim 1, wherein: the top of the B-shaped frame (13) far away from the A-shaped head (5) is 1 CM.

7. The meniscus forming knife of claim 1, wherein: one end of the thin steel rod (14) far away from the Y-shaped frame (15) is movably sleeved inside the rotating seat (16).

8. The meniscus forming knife of claim 1, wherein: the soft column (17) is in contact with one end of the clamping plate (21), and one end, far away from the soft column (17), of the pull steel rod (20) is hinged to the inner side of the B-shaped frame (13).

9. The meniscus forming knife of claim 1, wherein: the outer side of the fixed ring plate (23) is fixed in the support tube (2), one end of the retraction spring (3) is fixedly installed on one side of the fixed ring plate (23), and the other end of the retraction spring (3) is fixedly installed on the other side of the movable ring plate (24).

10. The meniscus forming knife of claim 1, wherein: two guide rail wheels (22) are movably mounted in the support cylinder (2).