CN114748114A - Knee joint operation distraction device - Google Patents
Knee joint operation distraction device Download PDFInfo
- Publication number
- CN114748114A CN114748114A CN202210303739.4A CN202210303739A CN114748114A CN 114748114 A CN114748114 A CN 114748114A CN 202210303739 A CN202210303739 A CN 202210303739A CN 114748114 A CN114748114 A CN 114748114A
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- CN
- China
- Prior art keywords
- distraction
- piece
- knee joint
- arm
- struts
- Prior art date
- 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.)
- Pending
Links
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 70
- 235000013372 meat Nutrition 0.000 claims description 8
- 238000001356 surgical procedure Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 210000003041 ligament Anatomy 0.000 claims 1
- 230000007480 spreading Effects 0.000 abstract description 24
- 210000004439 collateral ligament Anatomy 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 210000001519 tissue Anatomy 0.000 abstract description 4
- 210000004872 soft tissue Anatomy 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 239000012634 fragment Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 201000008482 osteoarthritis Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000003947 Knee Osteoarthritis Diseases 0.000 description 1
- 206010048873 Traumatic arthritis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 229940021182 non-steroidal anti-inflammatory drug Drugs 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0268—Joint distractors for the knee
Abstract
The invention discloses a knee joint operation distraction device which comprises two distraction arms which are rotatably connected, wherein the end parts of the two distraction arms are respectively provided with a distraction plate, the distraction plate comprises a first distraction piece, the first distraction piece is rotatably connected with the distraction arms so as to adjust the distraction angle of skin and flesh on two sides of a knee joint, the edge of the first distraction piece is provided with a second distraction piece, the section size of the second distraction piece is smaller than that of the first distraction piece, and the second distraction piece can extend into a knee joint incision so as to distract a collateral ligament. The first spreading sheet and the second spreading sheet can longitudinally extend into the knee joint incision, the two first spreading sheets can spread skin and flesh on two sides of the knee joint at different angles, the two second spreading sheets can spread collateral ligaments on two sides of the knee joint, the surgical field can be fully exposed, the interference of tissues of the knee joint incision is effectively avoided, a good surgical space is provided for a doctor, and the surgical effect is ensured.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a knee joint operation distraction device.
Background
The knee joint is one of the more important joints of the human body, and the disease damage of the knee joint can seriously affect the moving function of a patient and reduce the life quality of the patient. With the prolonging of the average life of the population in China, the incidence rate of knee joint degenerative osteoarthritis is in a remarkable increasing trend in the elderly population. Among outpatients of joint specialists, patients who are seen for OA of the knee joint (knee osteoarthritis) account for a considerable proportion of outpatients. The treatment of these diseases has relied primarily on various non-steroidal anti-inflammatory drugs, but these drugs have not been effective in severe cases. For the seriously degenerated knee joint, how to reconstruct the function of the knee joint to the maximum extent and improve the life quality of a patient is a great problem for orthopedic doctors.
Knee joint replacement is just such a reconstruction operation of joint function, and knee joint replacement is one of the commonly used operation modes of disease such as knee joint osteoarthritis, traumatic arthritis, rheumatoid disease of present clinical treatment to its postoperative effect is good. At present, when a doctor performs knee joint operation, the surface of a knee joint needs to be cut open, skin and flesh on two sides of the knee joint are loose after the knee joint is cut open, and medical staff need to prop the skin and flesh on the two sides open by a prying plate. In addition, when the knee joint is osteotomy in an operation, a prying plate is needed to slightly prop open the collateral ligament to protect the collateral ligament, medical staff are needed to hold the prying plate to protect soft tissues and the collateral ligament in the operation, the prying plate is generally needed to be used for multiple times in one operation, and multiple medical staff are needed to perform matching operation, so that an operating table is crowded, and the operation of a doctor is influenced; in addition, the time is often longer for knee joint operation process, needs frequent, long-time use sled board to protect soft tissue and collateral ligament in the operation, and the condition that the sled board dropped probably has the error, influences the operation progress.
Disclosure of Invention
The invention aims to provide a knee joint operation distraction device, which solves the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a knee joint operation distraction device, includes two and rotates the arm of strutting of connecting, and the tip of two arms of strutting all is equipped with the board of strutting, the board of strutting includes first piece of strutting, first piece of strutting is connected with the arm rotation of strutting to the angle of strutting of adjustment knee joint both sides skin meat, the edge of first piece of strutting is equipped with the second piece of strutting, the cross sectional dimension of second piece of strutting is less than the cross sectional dimension of first piece of strutting, and the second piece of strutting can stretch into in the knee joint incision in order to strut the collateral ligament.
As an alternative embodiment of the present invention, the first and second spreader plates are each in the shape of an outwardly convex arc.
As an optional embodiment of the present invention, a clamping groove is provided at an end of the spreading arm, and one end of the first spreading piece extends into the clamping groove and is rotatably connected to the spreading arm through a rotating connecting member.
As an alternative embodiment of the invention, the rotational connection comprises an adjustment screw which extends through the first spreader blade and is in threaded connection with the spreader arm.
As an optional embodiment of the invention, the spreading arm comprises a handle part, an arm body part and a connecting part which are connected in sequence, the handle part is provided with a finger ring, and the connecting part is rotatably connected with the first spreading piece.
As an alternative embodiment of the invention, the connecting part is rotatably connected with the arm body part through a connecting screw, and the rotating plane of the connecting part and the rotating plane of the first opening sheet are the same plane.
As an alternative embodiment of the invention, a locking mechanism is provided between the two spreading arms for locking the relative positions of the two spreading arms.
As an optional embodiment of the present invention, the locking mechanism includes a locking elastic sheet and an arc-shaped ratchet sheet, a ratchet is disposed on a ventral side of the ratchet sheet, a clamping groove is disposed on a back side of the ratchet sheet, the locking elastic sheet and the ratchet sheet are both rotatably disposed on one of the distraction arms, a ratchet hole is disposed on the other distraction arm, the ratchet sheet penetrates through the ratchet hole and extends to an outer side of the distraction arm, and the locking elastic sheet can extend into the clamping groove to fix the ratchet sheet.
The beneficial effects of the invention are as follows:
the invention provides a knee joint operation distraction device, wherein second distraction pieces are arranged at the edges of first distraction pieces, the first distraction pieces are rotationally connected with distraction arms, and the two first distraction pieces are oppositely arranged, so that the two first distraction pieces can distract skin and flesh on two sides of a knee joint at different angles. First piece and the second piece of strutting can vertically stretch into the knee joint incision, and two first pieces of strutting can strut knee joint both sides skin meat with the angle of difference, and two second pieces of strutting can strut knee joint both sides collateral ligament, and it can fully show the operation field of vision, effectively avoids the interference of knee joint incision tissue, provides good operation space for the doctor, ensures the operation effect. The invention can fully expose the knee joint without using a pry plate by medical staff, avoids the error which can occur when the pry plate is frequently used for a long time, can effectively protect the soft tissue and the collateral ligament of the knee joint, and greatly improves the working efficiency of the knee joint replacement operation.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic front view of an embodiment of the present invention;
fig. 3 is a schematic side view of an embodiment of the present invention.
In the figure: 1-a spreader arm; 2-opening the plate; 3-a first spreader sheet; 4-a second spreader sheet; 5-adjusting the screw; 6-handle part; 7-an arm body portion; 8-a connecting part; 9-a finger ring; 10-a connection screw; 11-locking the elastic sheet; 12-a ratchet plate; 13-ratchet hole; 14-fastening screws.
Detailed Description
Examples
As shown in fig. 1-3, the distraction device for knee joint surgery provided in this embodiment includes two distraction arms 1 rotatably connected, the middle portions of the two distraction arms 1 can be rotatably connected through a fastening screw 14, and the fastening screw 14 can adjust the tightness of rotation of the two distraction arms 1. The end part of the opening arm 1 is provided with an opening plate 2, and the two opening plates 2 are arranged oppositely, so that the tissues of the knee joint can be conveniently opened. Specifically, prop open board 2 and include first piece 3 that struts, first piece 3 that struts rotates with the arm 1 that struts and is connected, and first piece 3 that struts can rotate is convenient for adjust the angle that struts of knee joint both sides skin meat. The two first opening pieces 3 are oppositely arranged, so that the two first opening pieces 3 can open the skin and the meat on two sides of the knee joint at different angles.
The bottom edge of first piece 3 that struts is equipped with the second and struts piece 4, the cross sectional dimension that the second propped open piece 4 is less than the cross sectional dimension of first piece 3 that struts, and the second struts piece 4 can stretch into in the knee joint incision in order to strut the collateral ligament of side. The second props open 4 the bottom that is located first prop open 3, and first prop open 3 the piece and be used for strutting knee joint both sides skin meat, and the second props open 4 the piece and be used for strutting knee joint collateral ligament, and this knee joint operation distraction device can directly strut soft tissues such as collateral ligament and skin meat at the knee joint incision, and it can show the operation field of vision, provides good operation space for the doctor.
The first spreading sheet 3 and the second spreading sheet 4 can longitudinally extend into the knee joint incision, the two first spreading sheets 3 can spread skin and flesh on two sides of the knee joint at different angles, and the two second spreading sheets 4 can spread collateral ligaments on two sides of the knee joint, so that the surgical field can be fully exposed, the interference of the knee joint incision tissue is effectively avoided, and the surgical effect is ensured. The knee joint replacement device can fully expose the knee joint without using a pry plate by medical staff, avoids errors possibly caused by frequent and long-time use of the pry plate, can effectively protect soft tissues and collateral ligaments of the knee joint, and greatly improves the working efficiency of knee joint replacement surgery.
As an alternative solution of this embodiment, as shown in fig. 1, the first spreading piece 3 and the second spreading piece 4 are both in an arc shape protruding outward. The first opening sheet 3 and the second opening sheet 4 are both protruded towards the outer side and are in an outward expansion shape, so that the operation visual field can be expanded.
The end part of the opening arm 1 is provided with a clamping groove, and one end of the first opening sheet 3 extends into the clamping groove and is rotatably connected with the opening arm 1 through a rotating connecting piece. The centre gripping groove is the U-shaped, the lateral wall in centre gripping groove is equipped with the through-hole, be provided with the rotation connecting piece in the through-hole, the one end of first piece 3 that struts stretches into the centre gripping inslot, the rotation connecting piece runs through first piece 3 that struts, make first piece 3 that struts can the tilting, conveniently adjust the position that first piece 3 and the second strut 4 that struts, make two first piece 3 that strut can strut the knee joint both sides skin meat under the angle of difference, better completion knee joint operation.
Specifically, the rotation connecting piece includes adjusting screw 5, and the through-hole of centre gripping groove lateral wall is the screw hole, adjusting screw 5 runs through first piece 3 and with the screw hole threaded connection who struts arm 1, through adjusting screw 5's elasticity, can adjust the rotatory elasticity state of first piece 3 that struts. When the angle of the first spreading piece 3 needs to be adjusted, the adjusting screw 5 can be unscrewed, the first spreading piece 3 is rotated to a proper angle, and then the adjusting screw 5 is screwed down, so that the angle of the first spreading piece 3 is kept fixed. The rotation angle homoenergetic of two first distraction piece 3 can be adjusted as required, and it can be more convenient the completion operation.
As shown in fig. 2, in the present embodiment, the distraction arm 1 comprises a handle portion 6, an arm body portion 7 and a connecting portion 8 which are connected in sequence, the handle portion 6 is provided with a finger ring 9, and the connecting portion 8 is rotatably connected with the first distraction piece 3. The arm body part 7 is an arc-shaped structure which expands outwards, the connecting part 8 is in a linear shape, the handle part 6, the arm body part 7 and the connecting part 8 form the distraction arm 1 after being connected, the fingers of a user penetrate through the ring 9, the opening angles of the two distraction arms 1 are controlled, and the positions of the first distraction piece 3 and the second distraction piece 4 are adjusted, so that the operation visual field is expanded.
As shown in fig. 3, the connecting portion 8 is rotatably connected to the arm body portion 7 by a connecting screw 10, and the rotation plane of the connecting portion 8 is the same as the rotation plane of the first opening piece 3. The tightness of the rotation of the connecting part 8 can be adjusted by adjusting the locking state of the connecting screw 10. The connecting part 8 has a certain length, and when the connecting part 8 rotates, the first spreading piece 3 and the second spreading piece 4 rotate together with the connecting part 8, so that the large-amplitude angle adjustment of the first spreading piece 3 and the second spreading piece 4 can be realized; when the first opening sheet 3 rotates, the second opening sheet 4 rotates together with the first opening sheet 3, and the small-amplitude angle adjustment of the first opening sheet 3 and the second opening sheet 4 can be realized.
In this embodiment, a locking mechanism is arranged between the two distraction arms 1, the locking mechanism is used for locking the relative positions of the two distraction arms 1, the opening angles of the two distraction arms 1 are kept fixed, and the two distraction arms can open the skin and the collateral ligaments on two sides of the knee joint, so that the operation is facilitated. In practical application, after the opening angles of the two opening arms 1 are kept fixed, the knee joint operation opening device can be fixed on the legs of a patient by medical tapes or other methods, so that the working efficiency of a doctor is improved.
Specifically, locking mechanism includes locking shell fragment 11 and curved ratchet piece 12, the ventral side of ratchet piece 12 is equipped with the ratchet, and the dorsal part of ratchet piece 12 is equipped with the draw-in groove, locking shell fragment 11 and ratchet piece 12 all rotate and set up on one struts arm 1, have seted up ratchet hole 13 on another struts arm 1, ratchet piece 12 runs through ratchet hole 13 and stretches out to the outside that struts arm 1, locking shell fragment 11 can stretch into in the draw-in groove in order to fix ratchet piece 12. The locking elastic sheet 11 is rotatably installed on the opening arm 1 through a positioning pin, and the ratchet sheet 12 is rotatably installed on the opening arm 1 through another positioning pin. The ratchets on the ventral side of the ratchet sheet 12 are in contact with the inner wall of the ratchet hole 13, and the clamping grooves on the back side of the ratchet sheet 12 are tightly propped against the locking elastic sheet 11, so that the opening angles of the two opening arms 1 can be kept in a fixed state. When the opening angle of the two opening arms 1 needs to be adjusted, the locking elastic sheet 11 is rotated to enable the locking elastic sheet 11 to be separated from the clamping groove on the back side of the ratchet piece 12, then the ratchet piece 12 is rotated to enable the ratchet on the ventral side of the ratchet piece 12 to be separated from the inner wall of the ratchet hole 13, the two opening arms 1 lose the locking function, the opening angle of the two opening arms 1 can be adjusted as required, and better operation is facilitated.
It should be noted that the components of the knee joint operation distraction device of the invention, such as the distraction arm 1, the distraction plate 2, the first distraction piece 3, the second distraction piece 4, the adjusting screw 5, the finger ring 9, the connecting screw 10, the locking elastic sheet 11, the ratchet piece 12, the ratchet hole 13, the fastening screw 14 and the like, are all known by the technicians in the field, and the structure and principle of the device can be known by the technicians through technical manuals or conventional experimental methods. By combining the components, the invention has novel and reasonable structural design, wider application range, convenient operation and good distraction effect, greatly facilitates the operation of the operation, improves the operation speed and the operation quality and improves the working efficiency of doctors.
In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and may be fixedly connected, detachably connected, or integrated; may be a mechanical or electrical connection; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. Those skilled in the art will understand the specific meaning of the above terms in the present invention. Furthermore, the particular features, structures, etc. described in the examples can be included in at least one implementation and can be combined by one skilled in the art without conflicting therewith. The protection scope of the present invention is not limited to the above specific examples, and embodiments that can be imagined by those skilled in the art without creative efforts based on the basic technical concept of the present invention belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a knee joint operation distraction device, its characterized in that rotates the arm (1) that struts who connects including two, and the tip of two arms (1) that struts all is equipped with struts board (2), strut board (2) including first piece (3) that struts, first piece (3) that struts rotate with the arm (1) that struts are connected to the angle of strutting of adjustment knee joint both sides skin meat, the edge of first piece (3) that struts is equipped with second piece (4) that struts, the cross sectional dimension of second piece (4) is less than the cross sectional dimension of first piece (3) that struts, and second piece (4) that struts can stretch into in the knee joint incision in order to strut the side accessory ligament.
2. The knee joint surgery distraction device according to claim 1, wherein the first distraction piece (3) and the second distraction piece (4) are each in an arc shape which protrudes outward.
3. The knee joint surgery distraction device according to claim 1, wherein the end of the distraction arm (1) is provided with a holding groove, and one end of the first distraction piece (3) extends into the holding groove and is rotatably connected with the distraction arm (1) through a rotating connection.
4. The knee-joint surgery distraction device according to claim 3, wherein said rotating connection comprises an adjustment screw (5), said adjustment screw (5) passing through the first distraction plate (3) and being screwed to the distraction arm (1).
5. The knee joint surgery distraction device according to claim 1, characterized in that the distraction arm (1) comprises a handle portion (6), an arm body portion (7) and a connecting portion (8) connected in sequence, the handle portion (6) being provided with a finger ring (9), the connecting portion (8) being rotatably connected with the first distraction piece (3).
6. The knee-joint surgery distraction device according to claim 5, wherein the connection portion (8) is rotatably connected to the arm body portion (7) by a connection screw (10), and the rotation plane of the connection portion (8) is the same plane as the rotation plane of the first distraction piece (3).
7. The knee joint surgery distraction device according to claim 1, characterized in that a locking mechanism is provided between the distraction arms (1) for locking the relative positions of the distraction arms (1).
8. The knee joint operation distraction device according to claim 7, wherein the locking mechanism comprises a locking elastic sheet (11) and an arc-shaped ratchet sheet (12), the ventral side of the ratchet sheet (12) is provided with a ratchet, the dorsal side of the ratchet sheet (12) is provided with a clamping groove, the locking elastic sheet (11) and the ratchet sheet (12) are both rotatably arranged on one distraction arm (1), the other distraction arm (1) is provided with a ratchet hole (13), the ratchet sheet (12) penetrates through the ratchet hole (13) and extends out of the outer side of the distraction arm (1), and the locking elastic sheet (11) can extend into the clamping groove to fix the ratchet sheet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210303739.4A CN114748114A (en) | 2022-03-24 | 2022-03-24 | Knee joint operation distraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210303739.4A CN114748114A (en) | 2022-03-24 | 2022-03-24 | Knee joint operation distraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114748114A true CN114748114A (en) | 2022-07-15 |
Family
ID=82326676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210303739.4A Pending CN114748114A (en) | 2022-03-24 | 2022-03-24 | Knee joint operation distraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114748114A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090198240A1 (en) * | 2008-01-31 | 2009-08-06 | Kaufman David L | Femoral Tibial Spreader with Tensor Measurement |
| US20140031828A1 (en) * | 2012-07-30 | 2014-01-30 | Wright Medical Technology, Inc. | Surgical tool |
| CN207545142U (en) * | 2017-05-23 | 2018-06-29 | 复旦大学附属金山医院 | Collateral ligaments dilator |
| CN110859648A (en) * | 2019-12-24 | 2020-03-06 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Multifunctional knee joint single condyle replacement operation incision spreader |
| CN211460321U (en) * | 2019-09-06 | 2020-09-11 | 上海市第十人民医院 | Minimally invasive total knee joint replacement surgery retractor |
| CN213249362U (en) * | 2020-07-02 | 2021-05-25 | 周勇 | Femoral intercondylar notch opening device and muscle tissue opening device |
| CN112957086A (en) * | 2021-04-06 | 2021-06-15 | 山东良医医疗器械有限公司 | Femoral and tibial clearance balance distractor with pressure sensor |
| CN215651307U (en) * | 2021-06-17 | 2022-01-28 | 天津市威曼生物材料有限公司 | Opening forceps |
-
2022
- 2022-03-24 CN CN202210303739.4A patent/CN114748114A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090198240A1 (en) * | 2008-01-31 | 2009-08-06 | Kaufman David L | Femoral Tibial Spreader with Tensor Measurement |
| US20140031828A1 (en) * | 2012-07-30 | 2014-01-30 | Wright Medical Technology, Inc. | Surgical tool |
| CN207545142U (en) * | 2017-05-23 | 2018-06-29 | 复旦大学附属金山医院 | Collateral ligaments dilator |
| CN211460321U (en) * | 2019-09-06 | 2020-09-11 | 上海市第十人民医院 | Minimally invasive total knee joint replacement surgery retractor |
| CN110859648A (en) * | 2019-12-24 | 2020-03-06 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Multifunctional knee joint single condyle replacement operation incision spreader |
| CN213249362U (en) * | 2020-07-02 | 2021-05-25 | 周勇 | Femoral intercondylar notch opening device and muscle tissue opening device |
| CN112957086A (en) * | 2021-04-06 | 2021-06-15 | 山东良医医疗器械有限公司 | Femoral and tibial clearance balance distractor with pressure sensor |
| CN215651307U (en) * | 2021-06-17 | 2022-01-28 | 天津市威曼生物材料有限公司 | Opening forceps |
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