CN211484776U

CN211484776U - Cartilage extractor for plastic surgery

Info

Publication number: CN211484776U
Application number: CN201922100014.1U
Authority: CN
Inventors: 曹畅; 李棋; 孟晓彦; 张艳阁
Original assignee: West China Hospital of Sichuan University
Current assignee: West China Hospital of Sichuan University
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-15
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to the technical field of medical instruments, and discloses a cartilage extractor for plastic surgery, which comprises a shell with a handle, wherein a firing rod is hinged on the shell; the front end of the shell is provided with an extension pipe, the end of the extension pipe far away from the shell is provided with a hook, and the front end of the hook is a round and blunt metal sheet; a dowel bar is inserted into the extension pipe, one end of the dowel bar extends into the shell, and the other end of the dowel bar is provided with a blade; the end of the dowel bar positioned in the inner cavity of the shell is provided with a plurality of tooth sockets, and the edge of the hinged end of the firing bar is provided with teeth which can be meshed with the tooth sockets. The utility model adopts the hook to hook the costal cartilage, then the trigger rod controls the blade to cut the costal cartilage, the stripped costal cartilage can be hooked and cut, the whole process can be operated by one person, the operation is simple, and the operation time is shortened; and the blade part of the blade can be attached to the inner wall of the hook, so that the costal cartilage can be completely cut at one time, and the safety of the cutting process and the integrity of the broken end of the costal cartilage are improved.

Description

Cartilage extractor for plastic surgery

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to cartilage extractor for plastic.

Background

In recent years, with the development of plastic techniques and the improvement of aesthetic levels of people, and the influence of foreign plastic companies, more and more doctors are paying attention to the fine structure and morphology of the tip of the nose. At present, in the nasal plastic operation, the comprehensive nose augmentation and the nose appearance adjustment of the autologous costal cartilage matched with silica gel or a swelling material are the main trend, particularly the nasal tip shape is remodeled, and the autologous costal cartilage is a recognized optimal material. Through the transplantation of costal cartilage, the shape and the rotation degree of the nose tip part can be obviously changed, and the functions of lifting and downwards moving the nose tip point are achieved. However, most surgeons still adopt the traditional method of directly cutting costal cartilage by using a costal hook and a scalpel, so that double cooperation is needed, resources are wasted, time is consumed, the probability of damage to intercostal nerves and blood vessels is increased, serious patients can puncture pleural cavities, pneumothorax and even hemopneumothorax are caused, and the health and even the life of the patients are threatened.

SUMMERY OF THE UTILITY MODEL

Based on the problems, the utility model provides a cartilage extractor for plastic surgery, which adopts a hook to hook costal cartilage, then controls a blade to cut the costal cartilage through a firing rod, can realize the hook taking and cutting of the stripped costal cartilage, can be operated by a single person in the whole process, has simple operation, and shortens the operation time; the edge part of the blade can be attached to the inner wall of the hook, so that the costal cartilage can be completely cut at one time; the front end of the hook is an arc round blunt metal sheet, so that the soft tissues between the ribs beside the cartilage are protected to the maximum extent, the vascular nerve injury and the pleural cavity puncture are avoided, and the safety of the cutting process and the integrity of the broken ends of the costal cartilage are improved.

For solving the above technical problem, the utility model discloses a technical scheme is:

a cartilage extractor for plastic surgery comprises a shell with a handle, wherein a firing rod is hinged on the shell; the front end of the shell is provided with an extension pipe, the end of the extension pipe far away from the shell is provided with a hook, and the front end of the hook is an arc-shaped round blunt metal sheet; a dowel bar is inserted into the extension pipe, one end of the dowel bar extends into the inner cavity of the shell, a blade is arranged at the other end of the dowel bar, the edge part of the blade can be attached to the inner wall of the hook, and a containing groove with the thickness larger than that of the blade is arranged at the front end of the extension pipe; the end of the dowel bar positioned in the inner cavity of the shell is evenly provided with a plurality of tooth sockets at intervals, and the edge of the hinged end of the firing bar is provided with teeth which can be meshed with the tooth sockets.

Furthermore, a limiting block is arranged on the dowel bar section in the shell, and a compressed spring is arranged on the dowel bar section between the limiting block and the inner wall of the shell.

Furthermore, the shell is provided with an external thread at the position connected with the extension pipe, a connector is fixed at the end of the extension pipe close to the shell, and an internal thread matched with the external thread is arranged on the inner wall of the connector.

Further, the blade is connected with the dowel bar through threads.

Furthermore, a guide block is fixed on the dowel bar, a guide groove is formed in the end, close to the extending pipe, of the shell, the guide block is located in the guide groove, and the length of the guide groove is larger than that of the guide block.

Furthermore, a knife edge groove is arranged on the inner wall of the hook at the position corresponding to the edge part of the blade.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model adopts the hook to hook the costal cartilage, then the trigger rod controls the blade to cut the costal cartilage, thus realizing the hook taking and cutting of the stripped costal cartilage, the whole process can be operated by one person, the operation is simple, and the operation time is shortened; the edge part of the blade can be attached to the inner wall of the hook, so that the costal cartilage can be completely cut at one time; the front end of the hook is an arc round blunt metal sheet, so that the soft tissues between the ribs beside the cartilage are protected to the maximum extent, the vascular nerve injury and the pleural cavity puncture are avoided, and the safety of the cutting process and the integrity of the broken ends of the costal cartilage are improved.

Drawings

FIG. 1 is a schematic view showing the structure of an orthopedic cartilage extractor in example 1 or example 2;

FIG. 2 is an enlarged schematic view of detail A of FIG. 1;

FIG. 3 is an enlarged schematic view of detail B of FIG. 1;

FIG. 4 is a schematic view showing the structure in which the blades of the orthopedic cartilage extractor of example 1 or example 2 are retracted to the knife-edge groove;

FIG. 5 is a schematic view showing the connection of the connector and the extension pipe in examples 1 and 2;

FIG. 6 is a schematic view showing the structure of a hook in embodiment 2;

wherein, 1, a handle; 2. a housing; 3. a firing bar; 4. an extension pipe; 5. hooking; 6. a dowel bar; 7. a blade; 8. a receiving groove; 9. a limiting block; 10. a spring; 11. a connector; 12. a guide block; 13. a guide groove; 14. a knife edge groove.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

referring to fig. 1-4, a cartilage extractor for plastic surgery comprises a shell 2 with a handle 1, a firing bar 3 is hinged on the shell 2; an extension pipe 4 is arranged at the front end of the shell 2, a hook 5 is arranged at the end of the extension pipe 4 far away from the shell 2, and the front end of the hook 5 is an arc round blunt metal sheet; a dowel bar 6 is inserted in the extension pipe 4, one end of the dowel bar 6 extends into the inner cavity of the shell 2, a blade 7 is arranged at the other end of the dowel bar 6, the edge part of the blade 7 can be attached to the inner wall of the hook 5, and a containing groove 8 with the thickness larger than that of the blade 7 is arranged at the front end of the extension pipe 4; a plurality of tooth sockets are uniformly arranged at the end of the dowel bar 6 positioned in the inner cavity of the shell 2 at intervals, and teeth which can be meshed with the tooth sockets are arranged at the edge of the hinged end of the firing bar 3.

In the embodiment, when costal cartilage is required to be cut, firstly, a scalpel is used for cutting an incision at the position of the chest side wall corresponding to the costal cartilage, a surgical instrument is used for costal cartilage stripping, after the costal cartilage is stripped from peripheral tissues, a medical worker holds the handle 1 of the cartilage extractor by hand, the end of the extension tube 4 with the hook 5 extends into the incision, the front end of the hook 5 is a round and blunt metal sheet with a certain length and radian, the specific size and specification are similar to those of a costal hook and a costal stripper, and the stripped costal cartilage is hooked by the front end of the hook 5; medical staff hold the handle 1 by a single hand, the handle 1 and the firing rod 3 are positioned at the same side of the shell 2, and as teeth at the hinged end of the firing rod 3 are meshed with tooth grooves on the force transfer rod 6, the firing rod 3 is controlled to rotate to a position far away from the handle 1, and the force transfer rod 6 drives the blade 7 to be recovered into the accommodating groove 8; then, the firing rod 3 is pulled towards the handle 1, the force transmission rod 6 is driven by the firing rod 3 to move towards one end of the hook 5, and the blade 7 at the front end of the force transmission rod 6 cuts the costal cartilage hooked by the hook 5; the medical staff can be pulled by one hand in the whole process, so that the operation can be realized by one person, the operation is simple, and the operation time is shortened; the edge part of the blade 7 can be attached to the inner wall of the hook 5, so that the costal cartilage can be completely cut at one time; the front end of the hook 5 is an arc round blunt metal sheet, which protects the soft tissues between the ribs beside the cartilage and avoids the injury of the vascular nerve and the puncture of the pleural cavity.

Be provided with stopper 9 on the dowel steel 6 pole section that is located casing 2, be provided with pressurized spring 10 on the dowel steel 6 pole section between stopper 9 and the casing 2 inner wall. The spring 10 is arranged on the dowel bar 6, and two ends of the spring 10 are respectively contacted with the shell 2 and the limiting block 9 and are in a pressed state; if the firing rod 3 is not pulled, the blade 7 is always positioned in the accommodating groove 8 under the thrust action of the spring 10, so that the blade 7 can not scratch other tissues in the process that the front end of the cartilage extractor extends into an incision; medical staff pulls the in-process of percussion lever 3, and medical staff's grip strength is used for percussion lever 3 to transmit to dowel steel 6, and spring 10 is compressed to dowel steel 6's stopper 9, overcomes the elasticity of spring 10 and makes blade 7 move to the inner wall of crotch 5, realizes the cutting to soft rib. After the cutting is finished and the grip force is released, the spring 10 extends, and the blade 7 is automatically retracted into the accommodating groove 8.

Referring to fig. 1 and 5, the housing 2 is provided with an external thread at a position connected with the extension pipe 4, a connector 11 is fixed at the end of the extension pipe 4 close to the housing 2, and an internal thread matched with the external thread is arranged on the inner wall of the connector 11. The extension pipe 4 in this embodiment is screwed through the connector 11 with internal threads, which facilitates the disassembly and cleaning of the extension pipe 4.

In the embodiment, the blade 7 is connected with the dowel bar 6 through threads, and the blade 7 at the front end of the dowel bar 6 is taken out through the rotary blade 7, so that the blade 7 is detached and cleaned.

Referring to fig. 1 and 2, a guide block 12 is fixed on the dowel bar 6, a guide groove 13 is formed at the end of the extension pipe 4 close to the shell 2, the guide block 12 is located in the guide groove 13, and the length of the guide groove 13 is greater than that of the guide block 12. In the embodiment, the hooking direction of the hook 5 can be adjusted by rotating the extension pipe 4 after the front end of the extension pipe 4 with the hook 5 extends into the notch; in the adjustment process, the guide block 12 is fixed on the dowel bar 6, the guide block 12 is positioned in the guide groove 13, the rotating extension pipe 4 drives the dowel bar 6 and the extension pipe 4 to rotate simultaneously and in the same direction through the guide groove 13 and the guide block 12, and the blade part of the blade 7 can be attached to the inner wall of the hook 5 all the time.

Example 2:

referring to fig. 1-6, a cartilage extractor for plastic surgery comprises a shell 2 with a handle 1, a firing bar 3 is hinged on the shell 2; an extension pipe 4 is arranged at the front end of the shell 2, a hook 5 is arranged at the end of the extension pipe 4 far away from the shell 2, and the front end of the hook 5 is an arc round blunt metal sheet; a dowel bar 6 is inserted in the extension pipe 4, one end of the dowel bar 6 extends into the inner cavity of the shell 2, a blade 7 is arranged at the other end of the dowel bar 6, the edge part of the blade 7 can be attached to the inner wall of the hook 5, and a containing groove 8 with the thickness larger than that of the blade 7 is arranged at the front end of the extension pipe 4; a plurality of tooth sockets are uniformly arranged at the end of the dowel bar 6 positioned in the inner cavity of the shell 2 at intervals, and teeth which can be meshed with the tooth sockets are arranged at the edge of the hinged end of the firing bar 3.

The inner wall of the hook 5 is provided with a knife edge groove 14 at a position corresponding to the edge of the blade 7, the knife edge groove 14 enables the inner wall of the hook 5 to be attached to the blade 7 in a seamless mode, the edge of the blade 7 directly extends into the knife edge groove 14 in the cutting process, and accordingly the soft rib can be further cut completely at one time.

Other parts in this embodiment are the same as embodiment 1, and are not described herein again.

The embodiment of the present invention is the above. The specific parameters in the above embodiments and examples are only for the purpose of clearly showing the verification process of the present invention, and are not used to limit the protection scope of the present invention, which is still subject to the claims, and all the equivalent structural changes made by using the contents of the specification and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. An orthopedic cartilage extractor comprising a housing (2) with a handle (1), characterized in that: a firing rod (3) is hinged to the shell (2); an extension pipe (4) is arranged at the front end of the shell (2), a hook (5) is arranged at the end of the extension pipe (4) far away from the shell (2), and the front end of the hook (5) is an arc round blunt metal sheet; a dowel bar (6) is inserted into the extension pipe (4), one end of the dowel bar (6) extends into the inner cavity of the shell (2), a blade (7) is mounted at the other end of the dowel bar (6), the blade part of the blade (7) can be attached to the inner wall of the hook (5), and a containing groove (8) with the thickness larger than that of the blade (7) is formed in the front end of the extension pipe (4); the end of the dowel bar (6) positioned in the inner cavity of the shell (2) is uniformly provided with a plurality of tooth sockets at intervals, and the edge of the hinged end of the firing bar (3) is provided with teeth which can be meshed with the tooth sockets.

2. The orthopedic cartilage extractor of claim 1, wherein: and a limiting block (9) is arranged on the section of the dowel bar (6) in the shell (2), and a compressed spring (10) is arranged on the section of the dowel bar (6) between the limiting block (9) and the inner wall of the shell (2).

3. The orthopedic cartilage extractor of claim 1, wherein: casing (2) with the position that extension pipe (4) are connected is provided with the external screw thread, is close to extension pipe (4) end of casing (2) is fixed with connector (11), connector (11) inner wall be provided with external screw thread assorted internal thread.

4. The orthopedic cartilage extractor of claim 3, wherein: the blade (7) is connected with the dowel bar (6) through threads.

5. The orthopedic cartilage extractor of claim 3, wherein: the guide block (12) is fixed on the dowel bar (6), a guide groove (13) is formed in the end, close to the extension pipe (4) of the shell (2), of the dowel bar, the guide block (12) is located in the guide groove (13), and the length of the guide groove (13) is larger than that of the guide block (12).

6. The orthopedic cartilage extractor according to any of claims 1-5, characterized in that: the inner wall of the hook (5) is provided with a knife edge groove (14) at a position corresponding to the edge part of the blade (7).