Periosteal detacher for rib cartilage

Abstract

The periosteum detacher comprises a handle, a telescopic assembly and a tool bit part, the two ends of the telescopic assembly are connected with the handle and the tool bit part respectively, and the telescopic assembly is used for adjusting the distance between the handle and the tool bit part; the tool bit part is in bent connection with the telescopic assembly, and the included angle formed by the tool bit part and the telescopic assembly is larger than 80 degrees; the outer edge of the cutter head part extends towards the direction of the handle to form a curved surface, and a cutting edge is arranged on the outer edge of the cutter head part. According to the utility model, the distance between the handle and the cutter head part can be adjusted through the telescopic assembly according to requirements, so that the operation of the stripper is facilitated; the included angle formed by the knife head part and the telescopic assembly is larger than 80 degrees, so that the operation convenience of an operator can be improved, the tissue stripping difficulty in the costal cartilage taking process can be reduced, wounds are reduced to the minimum, rapid recovery of a patient is promoted, and the pain of the patient is relieved.

Description

Technical Field

[0001] The utility model relates to the field of surgical instruments, and more particularly to a periosteal stripper for rib cartilage. Background Art

[0002] With the continuous development of foot and ankle surgery in my country, autologous rib bone harvesting is often used in the foot and ankle field, such as in surgeries such as talar cartilage damage and metatarsal shortening. It is mainly used to repair bone defects. The mechanism is that after the rib cartilage is transplanted into the cartilage defect area, it can re-form a reliable biological bonding interface between the rib bed and the hyaline cartilage tissue morphology without significantly changing. The bone harvesting process involves a long skin incision along the long axis of the rib, taking care to protect the intercostal blood vessels and nerves. Depending on the size of the cartilage defect at the foot and ankle surgical site, the rib cartilage or the osteochondral junction is completely removed. After confirming that the pleura is intact, the rib periosteum is sutured and the chest incision is closed.

[0003] The anatomical parts involved in costal cartilage removal surgery are relatively constant, the surgical approaches and operations are relatively fixed, and the basic routines are similar, but how to further reduce trauma, shorten the operation time, and improve the quality of surgery is the current development trend of surgery. A dissector is used when removing bones from costal cartilage, and its main purpose is to separate the tissues covering the ribs, including the pleura and periosteum. However, the shape of traditional costal cartilage dissectors is straight, and the shape of ribs is curved, so there are many disadvantages when dissecting tissue: First, traditional dissectors cannot operate in real time with the curvature of the ribs, which is not very convenient for the surgeon; second: due to the inconvenient operation, it is easy to be time-consuming and labor-intensive when dissecting tissue, which increases the length of the operation and is not conducive to the patient's rapid recovery; third, improper operation may cause additional damage to local tissues and affect the surgical effect.

[0004] Therefore, how to provide a periosteal stripper for rib cartilage has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] One purpose of the utility model is to provide a new technical solution for a periosteal stripper of rib cartilage.

[0006] According to a first aspect of the present invention, a rib cartilage periosteal stripper is provided, comprising: a handle, a telescopic assembly, and a blade head, wherein the two ends of the telescopic assembly are connected to the handle and the blade head, respectively, and the telescopic assembly is used to adjust the distance between the handle and the blade head; the blade head and the telescopic assembly are connected in a bending manner, and the angle formed by the blade head and the telescopic assembly is greater than 80 degrees;

[0007] The outer edge of the blade head portion extends toward the handle to form a curved surface, and a blade is provided on the outer edge of the blade head portion.

[0008] Optionally, the angle ranges from 70 degrees to 120 degrees.

[0009] Optionally, the handle is provided with anti-slip grooves.

[0010] Optionally, the ratio of the length of the telescopic assembly to the length of the handle is 2 to 0.5.

[0011] Optionally, the thickness of the cutter head portion is gradually reduced from the center position of the cutter head portion toward the edge of the cutter head portion.

[0012] Optionally, the telescopic assembly includes a first telescopic rod and a second telescopic rod, the first end of the first telescopic rod is connected to the handle, the second end of the first telescopic rod is slidably connected to the first end of the second telescopic rod, and the second end of the second telescopic rod is connected to the blade head.

[0013] Optionally, the first telescopic rod is provided with a through hole, and the second telescopic rod is provided with a plurality of connecting holes corresponding to the through hole;

[0014] The first end of the flexible connecting column is connected to the first telescopic rod, and the second end of the flexible connecting column is connected to the plug-in column. The plug-in column passes through the through hole and is inserted into the connecting hole.

[0015] The beneficial effects of the present invention are:

[0016] The present invention connects the two ends of the telescopic assembly to the handle and the blade head, respectively, in a bent connection. The angle formed by the blade head and the telescopic assembly is greater than 80 degrees. The outer edge of the blade head extends toward the handle to form a curved surface, and a blade is provided on the outer edge of the blade head. The present invention can adjust the distance between the handle and the blade head as needed through the telescopic assembly, thereby facilitating the operation of the dissector. Furthermore, because the angle formed by the blade head and the telescopic assembly is greater than 80 degrees, the convenience of the operator's operation is increased, and the difficulty of dissecting the tissue during the costal cartilage removal process is reduced, thereby minimizing trauma, promoting rapid recovery, and reducing pain for the patient.

[0017] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0019] Figure 1 This is a structural diagram of the rib cartilage periosteal stripper of the present invention;

[0020] Figure 2 A side view of the rib cartilage periosteal stripper of the present invention;

[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0022] The markings in the figure are as follows: 1. Handle; 2. Telescopic assembly; 21. First telescopic rod; 22. Second telescopic rod; 23. Through hole; 24. Connecting column; 25. Flexible connecting column; 3. Blade head; 4. Blade. DETAILED DESCRIPTION

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0025] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0026] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0027] like Figures 1 to 3 As shown, an embodiment of the utility model provides a periosteal stripper for rib cartilage, comprising: a handle 1, a telescopic assembly 2 and a blade head 3, wherein the two ends of the telescopic assembly 2 are respectively connected to the handle 1 and the blade head 3, and the telescopic assembly 2 is used to adjust the distance between the handle 1 and the blade head 3; the blade head 3 and the telescopic assembly 2 are bent and connected, and the angle formed by the blade head 3 and the telescopic assembly 2 is greater than 80 degrees.

[0028] It should be noted that if the periosteal elevator is too long or too short, its ease of use will be affected. If the elevator is too long, the user can use telescopic assembly 2 to reduce the distance between handle 1 and blade head 3. If the elevator is too short, the user can use telescopic assembly 2 to increase the distance to meet the user's needs. Therefore, telescopic assembly 2 can adjust the distance between handle 1 and blade head 3, thereby adjusting the length of the elevator. This allows the elevator to adjust its length according to actual needs, making it more convenient to use.

[0029] The outer edge of the blade head 3 extends toward the handle 1 to form a curved surface, and a blade 4 is provided on the outer edge of the blade head 3 .

[0030] Specifically, the outer edge of the blade head 3 extends toward the handle 1 to form a curved surface, that is, the blade head 3 forms a concave structure, which facilitates the use of the blade head 3 and reduces the difficulty of peeling off the tissue.

[0031] The present invention connects the ends of the telescopic assembly 2 to the handle 1 and the blade head 3, respectively. The blade head 3 and the telescopic assembly 2 are connected in a curved manner, and the angle formed by the blade head 3 and the telescopic assembly 2 is greater than 80 degrees. The outer edge of the blade head 3 extends toward the handle 1 to form a curved surface, and a blade 4 is provided on the outer edge of the blade head 3. The present invention allows the distance between the handle 1 and the blade head 3 to be adjusted as needed through the telescopic assembly 2, thereby facilitating the operation of the dissector. Furthermore, since the angle formed by the blade head 3 and the telescopic assembly 2 is greater than 80 degrees, it increases the convenience of the operator's operation and reduces the difficulty of tissue dissection during costal cartilage removal, thereby minimizing trauma, promoting rapid recovery, and reducing pain for the patient.

[0032] In addition, the telescopic component 2 can be an electric telescopic rod, a manual telescopic rod or other structures to achieve the telescopic function, which is not limited here. The structure of the electric telescopic rod can be implemented according to the existing technology.

[0033] In one embodiment of the rib cartilage periosteal stripper of the present invention, Figure 1 As shown, the angle ranges from 70 degrees to 120 degrees.

[0034] It should be noted that if the angle between the blade head 3 and the telescopic assembly 2 is too large or too small, the periosteal dissector can also be inconvenient to use. If the angle between the blade head 3 and the telescopic assembly 2 is too large, once the periosteal dissector penetrates the gap between the costal cartilage, the blade head 3 cannot adhere to the surface of the costal cartilage, making it difficult to cut. If the angle between the blade head 3 and the telescopic assembly 2 is too small, once the periosteal dissector penetrates the gap between the costal cartilage, it can become stuck in the ribs, making it difficult to move.

[0035] Therefore, in this embodiment, the angle formed by the blade head 3 and the telescopic component 2 is 100 degrees, which allows the blade head 3 to effectively penetrate into the gap of the costal cartilage, facilitate cutting, and avoid getting stuck. It can move quickly along the direction of the costal cartilage extension, thereby speeding up the efficiency of the operation and reducing the patient's pain.

[0036] In one embodiment of the rib cartilage periosteal stripper of the present invention, anti-slip grooves are provided on the handle 1. The anti-slip grooves can prevent the handle 1 from slipping out of the hand, facilitate the doctor's grip, and perform cutting quickly and effectively, and avoid damage to the incision tissue and internal tissue during the cutting process.

[0037] In one embodiment of the rib cartilage periosteal stripper of the present invention, in order to further enhance the convenience of using the periosteal stripper, the ratio of the length of the telescopic component 2 to the length of the handle 1 is 2 to 0.5.

[0038] Specifically, the maximum length of the telescopic assembly 2 is twice the length of the handle 1 , and the minimum length of the telescopic assembly 2 is half the length of the handle 1 .

[0039] In one embodiment of the rib cartilage periosteal stripper of the present invention, the thickness of the blade head 3 is gradually reduced from the center of the blade head 3 to the edge of the blade head 3 .

[0040] Specifically, the thickness of the blade head 3 is gradually reduced from the center position of the blade head 3 to the edge of the blade head 3, so that the thickness of the outer edge of the blade head 3 is smaller than the thickness at the center position of the blade head 3, thereby making the blade 4 more labor-saving when peeling off the inner cartilage.

[0041] In one embodiment of the rib cartilage periosteal stripper of the present invention, Figures 1 to 3 As shown, the telescopic assembly 2 includes a first telescopic rod 21 and a second telescopic rod 22, the first end of the first telescopic rod 21 is connected to the handle 1, the second end of the first telescopic rod 21 is slidably connected to the first end of the second telescopic rod 22, and the second end of the second telescopic rod 22 is connected to the blade head 3.

[0042] Specifically, the length, width and height of the first telescopic rod 21 are all greater than the length, width and height of the second telescopic rod 22. A chute is provided on the first telescopic rod 21, and the second telescopic rod 22 is inserted into the chute and slidably connected to the chute.

[0043] When the periosteal stripper is too long, the user inserts the second telescopic rod 22 into the slide groove to reduce the length of the second telescopic rod 22, thereby reducing the distance between the handle 1 and the blade head 3;

[0044] When the length of the periosteal stripper is too short, the user pulls the second telescopic rod 22 out of the slide groove to increase the length of the second telescopic rod 22, thereby increasing the distance between the handle 1 and the blade head 3 to meet the usage requirements.

[0045] The utility model connects the first end of the first telescopic rod 21 to the handle 1, the second end of the first telescopic rod 21 is slidably connected to the first end of the second telescopic rod 22, and the second end of the second telescopic rod 22 is connected to the blade head 3, thereby making it easier to adjust the distance between the handle 1 and the blade head 3.

[0046] It should be noted that when the second telescopic rod 22 is fixed to the first telescopic rod 21, multiple mounting holes can be provided on the first telescopic rod 21, and elastic balls can be provided on the second telescopic rod 22. The elastic balls can be controlled to engage with different mounting holes, thereby changing the extended length of the second telescopic rod 22 to adjust the distance between the handle 1 and the blade head 3. Alternatively, a mounting hole can be provided on the first telescopic rod 21, and multiple locking interfaces can be provided on the second telescopic rod 22. A locking post can pass through the mounting holes and be inserted into different locking interfaces, thereby changing the extended length of the second telescopic rod 22 to adjust the distance between the handle 1 and the blade head 3.

[0047] And in one embodiment of the periosteal stripper of rib cartilage of the present invention, as Figure 3 As shown, the first telescopic rod 21 is provided with a through hole 23 , and the second telescopic rod 22 is provided with a plurality of connection holes corresponding to the through hole 23 .

[0048] The first end of the flexible connecting column 25 is connected to the first telescopic rod 21 , and the second end of the flexible connecting column 25 is connected to the plug-in column 24 . The plug-in column 24 passes through the through hole 23 and is inserted into the connecting hole.

[0049] The utility model provides a through hole 23 on the first telescopic rod 21, and provides a plurality of connecting holes corresponding to the through hole 23 on the second telescopic rod 22, and connects the first end of the flexible connecting column 25 to the first telescopic rod 21, and the second end of the flexible connecting column 25 to the plug-in column 24, and the plug-in column 24 passes through the through hole 23 and is inserted into the connecting hole, so that the second telescopic rod 22 can be stably fixed on the first telescopic rod 21, avoiding the problem that the first telescopic rod 21 and the second telescopic rod 22 move during use and cause harm to the patient.

[0050] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A rib cartilage periosteal stripper, characterized in that: include: A handle, a telescopic assembly, and a blade head, wherein the two ends of the telescopic assembly are respectively connected to the handle and the blade head, and the telescopic assembly is used to adjust the distance between the handle and the blade head; the blade head and the telescopic assembly are connected in a bending manner, and the angle formed by the blade head and the telescopic assembly is greater than 80 degrees; The outer edge of the blade head portion extends toward the handle to form a curved surface, and a blade is provided on the outer edge of the blade head portion.

2. The rib cartilage periosteal stripper according to claim 1, characterized in that: The range of the angle is 70 degrees to 120 degrees.

3. The rib cartilage periosteal stripper according to claim 1, characterized in that: The handle is provided with anti-slip patterns.

4. The rib cartilage periosteal stripper according to claim 1, characterized in that: The ratio of the length of the telescopic assembly to the length of the handle is 2 to 0.

5.

5. The rib cartilage periosteal stripper according to claim 1, characterized in that: The thickness of the cutter head portion is gradually reduced from the center position of the cutter head portion toward the edge of the cutter head portion.

6. The rib cartilage periosteal stripper according to claim 1, characterized in that: The telescopic assembly includes a first telescopic rod and a second telescopic rod, the first end of the first telescopic rod is connected to the handle, the second end of the first telescopic rod is slidably connected to the first end of the second telescopic rod, and the second end of the second telescopic rod is connected to the blade head.

7. The rib cartilage periosteal stripper according to claim 6, characterized in that: The first telescopic rod is provided with a through hole, and the second telescopic rod is provided with a plurality of connecting holes corresponding to the through hole; The telescopic assembly also includes a flexible connecting column and a plug-in column, the first end of the flexible connecting column is connected to the first telescopic rod, the second end of the flexible connecting column is connected to the plug-in column, and the plug-in column passes through the through hole and is inserted into the connecting hole.

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