CN217186337U - Soft tissue cutting knife suitable for bone fracture plate disassembly - Google Patents
Soft tissue cutting knife suitable for bone fracture plate disassembly Download PDFInfo
- Publication number
- CN217186337U CN217186337U CN202123295131.1U CN202123295131U CN217186337U CN 217186337 U CN217186337 U CN 217186337U CN 202123295131 U CN202123295131 U CN 202123295131U CN 217186337 U CN217186337 U CN 217186337U
- Authority
- CN
- China
- Prior art keywords
- soft tissue
- tissue cutting
- bone fracture
- fracture plate
- bone plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 210000004872 soft tissue Anatomy 0.000 title claims abstract description 25
- 208000010392 Bone Fractures Diseases 0.000 title description 41
- 229920001971 elastomer Polymers 0.000 claims abstract description 16
- 239000000806 elastomer Substances 0.000 claims abstract description 16
- 230000005489 elastic deformation Effects 0.000 claims abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 206010020649 Hyperkeratosis Diseases 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 238000003780 insertion Methods 0.000 abstract description 6
- 230000037431 insertion Effects 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 208000006735 Periostitis Diseases 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 210000003460 periosteum Anatomy 0.000 description 2
- 208000005214 Poroma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 201000001013 eccrine acrospiroma Diseases 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses a soft tissue cutting knife suitable for coaptation board is dismantled, stalk portion including interconnect with be rectangular platykurtic and can produce the elastomer portion of crooked elastic deformation, the front end of elastomer portion is provided with the cutting part. The utility model discloses because elastomer portion has upper and lower crooked elastic deformation performance, therefore, make elastomer portion can laminate smoothly the coaptation board and insert into through crooked deformation in its insertion process to cut off the soft tissue of vacancy pinhole department, simultaneously, if meet the callus and block, can strike the stalk portion end in order to cut off the callus, later alright easily extract the coaptation board from internal dismantlement, be favorable to improving the operation security, improve operating efficiency, and reduce the probability to patient's secondary injury.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to soft tissue cutting knife suitable for coaptation board is dismantled.
Background
The bone fracture plate is often used as an internal plant fixed fracture end, and the number of nail holes and internal fixing screws is changed along with the updating of the internal fixing concept. The old operation was to cut open the reduction internal fixation and the screw holes were substantially full of screws. At present, along with the updating of ideas and the innovation of technologies, the fixing mode is changed, locking nail holes and combination nail holes, long-section and long-span fixing and percutaneous fixing modes are formed, during fixing, screws are not driven into some nail holes in the bone fracture plate, only one screw is driven into the combination hole, some vacant gaps are formed in the nail holes in the bone fracture plate, and in the fracture healing process, the gaps can be filled by soft tissues or callus. Some patients need to take out the bone fracture plate after fracture healing, or some parts or other reasons need to take out the bone fracture plate. When the bone fracture plate is taken, the bone fracture plate can be completely cut according to the length of the bone fracture plate, particularly, the bone fracture plate with percutaneous internal fixation has the advantages that the cut during the bone fracture plate taking is far larger than the cut during the internal fixation, some patients cannot accept the cut, and the wound is large during the complete cutting. When the bone fracture plate is taken through a small incision, because the empty nail holes on the bone fracture plate are occupied by soft tissues or callus, a bone knife or a periosteum stripper is required to cut off, but the bone knife or the periosteum stripper has no elasticity and is difficult to insert, the occupation of the nail holes is difficult to cut off, the bone fracture plate is difficult to pull out, if the bone fracture plate is forcibly pulled out, the damage is large, bleeding is more, and important blood vessels and nerves which are adhered to the periphery can also be damaged.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a soft tissue cutting knife suitable for coaptation board is dismantled, it mainly solves the comparatively difficult technical problem of dismantlement process of the coaptation board of intradermic fixation among the prior art.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the utility model provides a soft tissue cutting knife suitable for coaptation board is dismantled, includes interconnect's stalk portion and is rectangular platykurtic and can produce the elastic body portion of crooked elastic deformation, and the front end of elastic body portion is provided with the cutting part.
Furthermore, a first cutting surface and a second cutting surface which are symmetrically arranged are arranged at the cutting part, so that the cutting part forms a double-sided edging structure.
Furthermore, the first cutting surface and the second cutting surface are both of concave cambered surface structures, and an arc-shaped cutting edge is formed at the joint of the first cutting surface and the second cutting surface.
Further, the ratio of the arc radius R of the arc-shaped cutting edge to the width W of the elastic body part is 0.7-0.9.
Furthermore, the handle part is cylindrical, and an anti-slip groove is formed on the handle part.
Furthermore, the diameter of the handle part is 15 mm-25 mm, and the length of the handle part is 80 mm-120 mm.
Further, the elastic body portion is made of SUS630 stainless steel.
Further, the elastomer part has a length L of 200 to 300mm, a width W of 5 to 15mm, and a thickness of 1.5 to 2.5 mm.
The technical scheme has the following advantages or beneficial effects:
in the soft tissue cutting knife suitable for the bone fracture plate disassembly of the utility model, the elastomer part of the cutting knife is in a long flat shape and can generate upper and lower elastic bending deformation, meanwhile, the front end of the elastomer part is provided with a cutting part, in the bone fracture plate disassembly process, firstly, the insertion side of the bone fracture plate can be operated to cut a proper incision until the bone fracture plate is exposed, and then a screw on the bone fracture plate is twisted out through skin, because the vacant nail hole on the bone fracture plate can be occupied by soft tissue or poroma in the recovery process, the bone fracture plate can not be directly pulled out, at the moment, one end of the exposed bone fracture plate can be tilted, and the elastomer part of the cutting knife can be inserted into along the inner side and/or the back side of the bone fracture plate as required, because the elastomer part has upper and lower bending elastic deformation performance, therefore, the elastomer part can be smoothly inserted into the bone fracture plate through bending deformation in the insertion process, so as to cut off the soft tissue at the empty nail hole, simultaneously, if meet callus and block, can strike the terminal in order to cut off the callus at the stalk portion, later alright easily with the coaptation board from internal dismantlement pull out, be favorable to improving the operation security, improve operating efficiency to reduce the probability to patient's secondary injury.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic view of another perspective structure according to an embodiment of the present invention.
Fig. 4 is a partially enlarged view of fig. 3 at B.
Description of reference numerals:
1. shank, 2, elastomer, 3, blade, 11, anti-slip groove, 31, first blade face, 32, second blade face, 33, arc-shaped cutting edge.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, an embodiment of the present invention provides a soft tissue cutting knife suitable for bone fracture plate detachment, including a handle portion 1 and an elastic body portion 2 which is in a long flat shape and can generate bending elastic deformation, wherein a blade portion 3 is disposed at a front end of the elastic body portion 2. It can be understood that, in this embodiment, the elastic body portion 2 of the cutting knife is a long flat shape and can generate upper and lower elastic bending deformation, meanwhile, the cutting portion 3 is arranged at the front end of the elastic body portion 2, in the bone fracture plate detaching process, firstly, an appropriate incision can be cut on the inserting side of the bone fracture plate by an operation until the bone fracture plate is exposed, and then a screw on the bone fracture plate is screwed out through the skin, because in the restoring process, an empty nail hole on the bone fracture plate can be occupied by soft tissue or callus and the bone fracture plate can not be directly pulled out, at this time, one end of the exposed bone fracture plate can be tilted, and the elastic body portion 2 of the cutting knife can be inserted into the bone fracture plate along the inner side and/or the back side of the bone fracture plate as required, because the elastic body portion 2 has upper and lower bending elastic deformation performance, therefore, the elastic body portion 2 can be smoothly attached to the bone fracture plate and inserted into the bone fracture plate through bending deformation in the inserting process, so as to cut off the soft tissue at the empty nail hole, simultaneously, if meet callus and block, can strike the terminal of the handle part 1 in order to cut off the callus, later alright easily with the coaptation board from internal dismantlement pull out, be favorable to improving the operation security, improve operating efficiency to reduce the probability to patient's secondary injury.
Referring to fig. 1 and fig. 2, in a preferred embodiment, a first edge surface 31 and a second edge surface 32 are symmetrically disposed on the edge portion 3 to form a double-sided edge structure of the edge portion 3. Preferably, the first edge surface 31 and the second edge surface 32 are both concave arc structures, and the intersection of the first edge surface 31 and the second edge surface 32 forms an arc-shaped cutting edge 33. It can be understood that, in the present embodiment, the blade portion 3 is configured as a double-sided sharpening structure, and at the same time, the first blade surface 31 and the second blade surface 32 are both concave arc structures, so that when the elastic body portion 2 is inserted into the bone plate surface to cut off soft tissues in the empty nail hole of the bone plate, the blade portion 3 does not directly contact with the bone plate surface to generate obvious friction or cutting phenomena, which makes the insertion of the elastic body portion 2 difficult, so as to ensure the insertion smoothness.
Referring to fig. 1 to 4, in a preferred embodiment, the ratio of the arc radius R of the arc-shaped cutting edge 33 to the width W of the elastic body portion 2 is 0.7 to 0.9. Preferably, the ratio of the arc radius R of the arc-shaped cutting edge 33 to the width W of the elastic body portion 2 is 0.8. However, it should be understood by those skilled in the art that in other embodiments, the ratio of the arc radius R of the arc-shaped cutting edge 33 to the width W of the elastomer part 2 is not limited to the specific embodiment disclosed in the present embodiment, and can be designed specifically according to the actual needs.
Referring to fig. 1 and 3, in a preferred embodiment, the handle 1 is cylindrical and the handle 1 is formed with anti-slip grooves 11 to facilitate better insertion of the elastomer body 2 into the body by grasping the handle 1 to cut soft tissue.
Referring to fig. 1 and 3, in a preferred embodiment, the diameter of the handle 1 is 15 mm-25 mm, and the length of the handle 1 is 80 mm-120 mm. Preferably, the shank 1 has a diameter of 20mm and the shank 1 has a length of 105 mm. However, it should be understood by those skilled in the art that in other embodiments, the size of the handle 1 is not limited to the specific embodiment disclosed in the present embodiment, as long as it is convenient for grasping and using, and those skilled in the art can specifically design the size of the handle 1 according to specific needs.
Referring to fig. 1 and 3, in a preferred embodiment, the elastic body 2 is made of SUS630 stainless steel. However, it will be understood by those skilled in the art that in other embodiments, the elastic body portion 2 may be made of other types of medical stainless steel as long as the long flat elastic body portion 2 has suitable elastic deformation properties in bending up and down.
Referring to fig. 1 and 3, in a preferred embodiment, the elastomer portion 2 has a length L of 200mm to 300mm, a width W of 5mm to 15mm, and a thickness of 1.5mm to 2.5 mm. In the present embodiment, it is preferable that the length L of the elastic body portion 2 is 250mm, the width W is 10mm, and the thickness is 2 mm. It will be appreciated by those skilled in the art that the elastomer portion 2 may have other dimensions in other embodiments and is not limited to the specific embodiments disclosed in the present embodiment.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; these modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and therefore, all other embodiments obtained by those skilled in the art without any creative effort fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a soft tissue cutting knife suitable for coaptation board is dismantled which characterized in that: comprises a handle part (1) and an elastic body part (2) which is in a long flat shape and can generate bending elastic deformation, wherein the front end of the elastic body part (2) is provided with a blade part (3).
2. A soft tissue cutting burr adapted for use in connection with the removal of a bone plate according to claim 1, wherein: the blade part (3) is provided with a first blade surface (31) and a second blade surface (32) which are symmetrically arranged so that the blade part (3) forms a double-sided edge sharpening structure.
3. A soft tissue cutting burr adapted for use in bone plate detachment of claim 2, wherein: the first edge surface (31) and the second edge surface (32) are both concave cambered surface structures, and an arc-shaped cutting edge (33) is formed at the joint of the first edge surface (31) and the second edge surface (32).
4. A soft tissue cutting burr adapted for use in bone plate detachment of claim 3, wherein: the ratio of the arc radius R of the arc-shaped cutting edge (33) to the width W of the elastic body part (2) is 0.7-0.9.
5. A soft tissue cutting burr adapted for use with bone plate detachment of any of claims 1 to 4, wherein: the handle part (1) is cylindrical, and an anti-slip groove (11) is formed on the handle part (1).
6. A soft tissue cutting burr suitable for use in bone plate detachment of claim 5, wherein: the diameter of the handle part (1) is 15 mm-25 mm, and the length of the handle part (1) is 80 mm-120 mm.
7. A soft tissue cutting burr adapted for use with bone plate detachment of any of claims 1 to 4, wherein: the elastic body part (2) is made of SUS630 stainless steel.
8. A soft tissue cutting burr suitable for use in bone plate detachment of claim 7, wherein: the length L of the elastomer part (2) is 200 mm-300 mm, the width W is 5 mm-15 mm, and the thickness is 1.5 mm-2.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123295131.1U CN217186337U (en) | 2021-12-24 | 2021-12-24 | Soft tissue cutting knife suitable for bone fracture plate disassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123295131.1U CN217186337U (en) | 2021-12-24 | 2021-12-24 | Soft tissue cutting knife suitable for bone fracture plate disassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217186337U true CN217186337U (en) | 2022-08-16 |
Family
ID=82785976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123295131.1U Expired - Fee Related CN217186337U (en) | 2021-12-24 | 2021-12-24 | Soft tissue cutting knife suitable for bone fracture plate disassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217186337U (en) |
-
2021
- 2021-12-24 CN CN202123295131.1U patent/CN217186337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220816 |