CN112603397B - Braking type joint soft tissue spreader - Google Patents
Braking type joint soft tissue spreader Download PDFInfo
- Publication number
- CN112603397B CN112603397B CN202011541869.9A CN202011541869A CN112603397B CN 112603397 B CN112603397 B CN 112603397B CN 202011541869 A CN202011541869 A CN 202011541869A CN 112603397 B CN112603397 B CN 112603397B
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- locking
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- shaped
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- 210000004872 soft tissue Anatomy 0.000 title claims abstract description 26
- 210000000078 claw Anatomy 0.000 claims abstract description 55
- 239000011324 bead Substances 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 210000004394 hip joint Anatomy 0.000 abstract description 6
- 210000000281 joint capsule Anatomy 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 210000002027 skeletal muscle Anatomy 0.000 description 1
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Classifications
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- 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
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention provides a brake type joint soft tissue spreader, which comprises: the U-shaped opening rod, a locking sleeve and two opening claws, wherein two support rods of the U-shaped opening rod are respectively provided with a bulge part and a fixed pin, the locking sleeve is positioned on the support rod provided with the bulge part, a locking hole on one opening claw penetrates through the bulge part and is fixed through the locking sleeve, and a locking hole on the other opening claw is connected with the fixed pin; one side of the tooth-shaped part on the opening claw faces the inner side of the U-shaped opening rod, so that the two opening claws are oppositely arranged. The advantages are that: the hip joint can brake to stably retract soft tissues, the joint capsule can be exposed, the burden of medical staff is reduced, better operation guarantee is provided for patients and operators, and the satisfaction degree of the patients after the operation is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a brake type joint soft tissue spreader.
Background
Osteology is also known as orthopedics. The system is a specialty or discipline of medicine, specially studies the anatomy, physiology and pathology of the skeletal muscle system, maintains and develops the normal form and function of the system by using medicines, operations and physical methods, and treats injuries and diseases of the system.
The soft tissue distraction devices commonly used in the medical market at present are mainly divided into the following ones, one is a distraction clamp structure which needs medical staff to hold and pull and can brake, or a distraction device commonly used for a special structure of a knee arthroscope. The above all can realize the exposure of soft tissues such as muscles, but have some problems when using, and ordinary handheld tractive needs medical staff to continue the tractive, and tractive stability is difficult to guarantee, and increases medical staff's burden. When the brakable distraction clamp is used, the distraction angle is small, the depth for distracting soft tissues is shallow, and when the hip joint capsule needs to be distracted in an operation, the distraction requirement is difficult to meet. And when the soft tissue tension is high, the braking strength of the distraction forceps is not enough, the situation of springback is easy to occur, the application range of the special structure of the knee arthroscope is small, and the distraction forceps are only suitable for distraction of the soft tissue of the knee joint and are not suitable for the hip joint.
Disclosure of Invention
The invention provides a brake type articular soft tissue spreader, which aims to overcome at least one technical defect, has the function of braking, can spread the hip articular soft tissue, reduces the burden of medical staff and provides better operation guarantee for patients and operators.
In order to achieve the purpose, the invention provides the following technical scheme:
a brake type articular soft tissue distractor comprising: the U-shaped opening rod, a locking sleeve and two opening claws, wherein two support rods of the U-shaped opening rod are respectively provided with a bulge part and a fixed pin, the locking sleeve is positioned on the support rod provided with the bulge part, a locking hole on one opening claw penetrates through the bulge part and is fixed through the locking sleeve, and a locking hole on the other opening claw is connected with the fixed pin;
one side of the tooth-shaped part on the spreading claw faces the inner side of the U-shaped spreading rod, so that the two spreading claws are oppositely arranged;
the opening claw is L-shaped, the locking hole is provided with a plurality of one-shaped rows and is arranged on the long edge of the opening claw, the tooth-shaped part is arranged on the short edge of the opening claw, and the tooth-shaped part is parallel to the long edge of the opening claw.
Further, be provided with from last down still be provided with uide pin, ripples pearl screw, a recess on the branch of bellying, the uide pin is located the back of this branch, ripples pearl screw a recess the bellying all is located the front of this branch, just the bellying is located ripples pearl screw lower part in the recess, make the lock sleeve to behind the bellying direction motion with ripples pearl screw realizes locking fixedly.
Furthermore, the locking sleeve comprises a sleeve body, a connecting hole and two symmetrically arranged locking grooves, wherein the connecting hole is positioned in the sleeve body and is vertically formed along the sleeve body, so that when the U-shaped opening rod is matched with the locking sleeve, the protruding part is positioned in the connecting hole;
the two locking grooves are positioned at the lower part of the sleeve body, are vertically formed in the peripheral wall of the sleeve body and are communicated with each other through the connecting holes, and the locking grooves are positioned at the lower part of the sleeve body, so that after the locking holes in the spreading claw penetrate through the protruding part, the spreading claw is positioned in the locking grooves and slides out of the locking fixing holes in the sleeve body through the bead screws to realize locking and fixing;
the locking fixing hole is positioned on the front surface of the sleeve body and is vertically arranged and communicated with the connecting hole.
Furthermore, the sleeve body is further provided with a standing fixing hole positioned at the lower part of the locking fixing hole, and the standing fixing hole is vertically communicated with the connecting hole.
Furthermore, the front of the supporting rod provided with the protruding part is also provided with a sliding sleeve limiting pin, and the sliding sleeve limiting pin is positioned on the upper part of the guide pin.
Further, the tooth-shaped part is formed by a plurality of teeth which are arranged side by side, and gaps are reserved between the teeth.
A braking type joint soft tissue spreader has the advantages that: the spreader realizes that the hip joint can brake to stably retract soft tissues and realize the exposure of the joint capsule, reduces the burden of medical personnel, provides better operation guarantee for patients and operators, and improves the satisfaction degree of the patients after the operation.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and 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. In the drawings:
FIG. 1 is a schematic view of a brake type soft tissue distractor according to the present invention;
FIG. 2 is a schematic view of another embodiment of the brake type soft tissue distractor according to the present invention;
FIG. 3 is a schematic perspective view of the U-shaped opening bar of the present invention when the U-shaped opening bar is sleeved on the top end of the locking sleeve;
FIG. 4 is a schematic front view of the U-shaped opening bar of the present invention;
FIG. 5 is a schematic sectional view taken along the plane a-a in FIG. 4;
FIG. 6 is a schematic diagram of the right side view of the structure of FIG. 4;
FIG. 7 is an enlarged view of the portion A of FIG. 5;
FIG. 8 is a front view of the locking sleeve of the present invention;
FIG. 9 is a schematic sectional view taken along the plane b-b in FIG. 8;
FIG. 10 is a schematic view of section c-c of FIG. 8;
FIG. 11 is a schematic view of a retainer pin;
FIG. 12 is a side view of the distracting jaw;
FIG. 13 is a schematic top view of the distracting jaw;
wherein:
the device comprises a U-shaped opening rod 10, a convex part 11, a fixing pin 12, a second groove 13, a semicircular column head 14, a guide pin 15, a wave ball screw 16, a first groove 17 and a sliding sleeve limiting pin 18;
the locking sleeve 20, the sleeve body 21, the connecting hole 22, the locking groove 23, the locking fixing hole 24, the guide hole 25 and the standing fixing hole 26;
spreading claw 30, locking hole 31, tooth part 32 and tooth 33.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to 3, in order to realize the braked stable retraction of soft tissue of a hip joint in an operation process, the braked stable retraction of soft tissue of a hip joint according to the present invention comprises a U-shaped opening rod 10, a locking sleeve 20, and two opening claws 30, wherein two struts of the U-shaped opening rod 10 are respectively provided with a protrusion 11 and a fixing pin 12, the locking sleeve 20 is located on the strut provided with the protrusion 11, a locking hole 31 of one opening claw 30 penetrates through the protrusion 11 and is fixed by the locking sleeve 20, and a locking hole 31 of the other opening claw 30 is connected with the fixing pin 12; one side of the toothed portion 32 of the expansion claw 30 faces the inside of the U-shaped expansion lever 10, so that the two expansion claws 30 are disposed opposite to each other.
In a specific embodiment, there is one protrusion 11, there are two fixing pins 12 disposed on the strut at corresponding positions, specifically, in height, the protrusion 11 corresponds to the fixing pin 12 at the upper and lower portions of the strut, and the expanding claw 30 at one side of the fixing pin 12 selects which fixing pin 12 is connected and fixed according to actual conditions.
The fixing pin 12 is welded with or integrally formed with the support rod connected with the fixing pin, is perpendicular to the support rod and is parallel to the protruding direction of the protruding part 11; specifically, as shown in fig. 11, the fixing pin 12 is a cylindrical structure with a second groove 13 formed on one side along the length direction thereof, and two ends of the second groove 13 are symmetrically connected with a semicircular column head 14, the semicircular column head 14 is parallel to the protruding direction of the protruding portion 11, so that when the two spreading claws 30 are fixed on the U-shaped spreading rod 10, the spreading claws are arranged in parallel to expose a joint capsule;
further, the cylinder structure is welded or integrally formed with the support rod.
In a specific embodiment, as shown in fig. 4 to 7, a guide pin 15, a wave ball screw 16, and a first groove 17 are further disposed on the support rod provided with the protruding portion 11 from top to bottom, the guide pin 15 is located on the back surface of the support rod, the wave ball screw 16, the first groove 17, and the protruding portion 11 are all located on the front surface of the support rod, and the protruding portion 11 is located in the first groove 17 at the lower portion of the wave ball screw 16, so that the locking sleeve 20 is locked and fixed with the wave ball screw 16 after moving towards the protruding portion 11;
the protruding portion 11 is of a protruding cylindrical structure and is integrally formed with the first groove 17, and the outer diameter of the protruding portion is slightly smaller than the diameter of the locking hole 31, so that the protruding portion 11 can smoothly penetrate through the locking hole 31 and cannot easily slide out of the locking hole 31.
In a specific embodiment, a sliding sleeve limit pin 18 is further disposed on the front surface of the strut provided with the protruding portion 11, and the sliding sleeve limit pin 18 is located on the upper portion of the guide pin 15, so as to prevent the locking sleeve 20 from sliding upwards the strut during use, and further enhance the stability of the present invention.
In a specific embodiment, as shown in fig. 8 to 10, the locking sleeve 20 includes a sleeve body 21, a connecting hole 22, and two symmetrically disposed locking grooves 23, wherein the connecting hole 22 is located in the sleeve body 21 and vertically opened along the sleeve body, so that when the U-shaped opening bar 10 is assembled with the locking sleeve 20, the protruding portion 11 is located in the connecting hole 22;
the two locking grooves 23 are located at the lower part of the sleeve body 21, vertically arranged on the peripheral wall of the sleeve body, and communicated through the connecting hole 22, the locking grooves 23 are located at the lower part of the sleeve body 21, so that after the locking holes 31 on the expanding claw 30 pass through the protruding part 11, the expanding claw 30 is located in the locking grooves 23 and slides out of the locking fixing hole 24 on the sleeve body 21 through the wave ball screw 16 to realize locking and fixing;
further, the thickness of the locking hole 31 is smaller than the height of the boss 11;
the locking sleeve 20 is also internally provided with a guide hole 25 which is vertically arranged, and the guide hole 25 is communicated with the connecting hole 22, so that the installation direction is ensured when the locking sleeve 20 is assembled with the U-shaped spreader bar 10, and when the spreader is used, the guide hole 25 is used for ensuring that the locking sleeve 20 cannot rotate;
furthermore, the upper part of the sleeve body 21 is provided with external threads, so that the sleeve body is prevented from easily sliding in the assembling process; the connecting hole 22 vertically penetrates through the sleeve body 21, and the locking groove 23 is located at the lower part of the external thread and vertically arranged along the peripheral wall of the sleeve body 21.
In a specific embodiment, the locking fixing hole 24 is located on the front surface of the sleeve body 21, and is vertically opened and communicated with the connecting hole 22. The sleeve body 21 is further provided with a standing fixing hole 26 positioned at the lower part of the locking fixing hole 24, and the standing fixing hole 26 is vertically arranged and communicated with the connecting hole 22, so that when the locking sleeve 20 is assembled with the U-shaped opening rod 10, the standing fixing hole 26 and the wave bead screw 16 are locked and fixed;
further, the locking fixing hole 24 is formed on the external thread, and the standing fixing hole 26 is formed below the external thread on the sleeve body 21; the locking fixing hole 24 and the standing fixing hole 26 have the same size and shape and are used for being matched with the wave ball screw 16.
The two locking grooves 23 are symmetrically arranged on the left side and the right side of the locking fixing hole 24, so that the corresponding opening claw 30 is horizontally fixed on the U-shaped opening rod 10, and the operation accuracy is improved.
In a specific embodiment, as shown in fig. 12 and 13, the spreading claw 30 is L-shaped, and the locking holes 31 are opened with a plurality of locking holes arranged in a one-line shape on the long side of the spreading claw 30, and the locking holes 31 at appropriate positions are selected to be correspondingly connected with the protruding portions 11 according to the needs in the operation; the tooth-shaped part 32 is arranged on the short side of the spreading claw 30, and the tooth-shaped part 32 is arranged in parallel with the long side of the spreading claw 30; the tooth-shaped part 32 is formed by a plurality of teeth 33 in parallel, and a gap is formed between every two adjacent teeth 33 and is used for hooking soft tissues needing to be propped open.
The invention is realized in the following way:
before operation: firstly, the U-shaped opening rod 10 and the locking sleeve 20 are assembled, namely, the first groove 17 on the U-shaped opening rod 10 corresponds to the locking groove 23 on the locking sleeve 20, and the first groove slides along the direction of the guide pin 15 through the connecting hole 22, so that the bead screw 16 is in contact with the standing fixing hole 26 to rebound, and the locking sleeve 20 and the U-shaped opening rod 10 are assembled;
after the incision is finished in the operation, when soft tissue needs to be expanded, firstly, one locking hole 31 on one expansion claw 30 penetrates through the boss 11, so that the expansion claw 30 and the U-shaped expansion rod 10 are preliminarily fixed, the tooth-shaped part 32 on the expansion claw 30 is positioned on the inner side of the U-shaped expansion rod 10, the soft tissue on one side is expanded by the expansion claw 30, and specifically which locking hole 31 on the expansion claw 30 is connected is selected according to the distance needing to be expanded;
then, the guide hole 25 is aligned with the guide pin 15, and the locking sleeve 20 is slid downwards along the direction of the guide pin 15 until the opening claw 30 is inserted into the locking groove 23, the wave ball screw 16 rebounds into the locking fixing hole 24 to lock the locking sleeve 20 with the U-shaped opening rod 10, and at this time, the guide pin 15 and the guide hole 25 are correspondingly arranged in a matched mode to prevent the locking sleeve 20 from rotating;
after the other soft tissue to be expanded is hooked by the toothed portion 32 of the expansion claw 30 to a specific position, the locking hole 31 at a corresponding position on the expansion claw 30 is connected with the fixing pin 12, and by the principle that muscle strength is the same, the toothed portion 32 on the expansion claw 30 is also located on the inner side of the U-shaped expansion rod 10 (that is, two expansion claws 30 are arranged oppositely), and which locking hole 31 on the expansion claw 30 is connected is automatically adjusted according to the distance to be expanded, after the connection is completed, the soft tissue is expanded, the expansion claw 30 is locked by braking, the wave bead screw 16 needs to be pressed down during disassembly, and then the locking sleeve 20 is lifted upwards.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. The braking type joint soft tissue spreader is characterized by comprising a U-shaped spreading rod (10), a locking sleeve (20) and two spreading claws (30), wherein two support rods of the U-shaped spreading rod (10) are respectively provided with a boss (11) and a fixing pin (12), the locking sleeve (20) is positioned on the support rod provided with the boss (11), a locking hole (31) in the spreading claw (30) penetrates through the boss (11) and is fixed through the locking sleeve (20), and a locking hole (31) in the other spreading claw (30) is connected with the fixing pin (12);
one side of the tooth-shaped part (32) on the expansion claw (30) faces the inner side of the U-shaped expansion rod (10), so that the two expansion claws (30) are oppositely arranged;
the stretching claw (30) is L-shaped, the locking holes (31) are provided with a plurality of locking holes which are arranged in a one-line mode on the long side of the stretching claw (30), the short side of the stretching claw (30) is provided with the tooth-shaped part (32), and the tooth-shaped part (32) is arranged in parallel with the long side of the stretching claw (30);
the fixing pin (12) is of a cylindrical structure, one side of the fixing pin in the length direction is provided with a second groove (13), two ends of the second groove (13) are symmetrically connected with a semicircular column head (14), and the semicircular column head (14) is parallel to the protruding direction of the protruding part (11);
a guide pin (15), a wave bead screw (16) and a first groove (17) are further arranged on the supporting rod provided with the protruding portion (11) from top to bottom, the guide pin (15) is located on the back face of the supporting rod, the wave bead screw (16), the first groove (17) and the protruding portion (11) are located on the front face of the supporting rod, and the protruding portion (11) is located in the first groove (17) on the lower portion of the wave bead screw (16), so that the locking sleeve (20) is locked and fixed with the wave bead screw (16) after moving towards the protruding portion (11);
the locking sleeve (20) comprises a sleeve body (21), a connecting hole (22) and two symmetrically-arranged locking grooves (23), wherein the connecting hole (22) is positioned in the sleeve body (21) and is vertically formed along the sleeve body, so that when the U-shaped opening rod (10) is assembled with the locking sleeve (20), the protruding part (11) is positioned in the connecting hole (22);
the two locking grooves (23) are located at the lower part of the sleeve body (21), are vertically formed in the peripheral wall of the sleeve body and are communicated with each other through the connecting holes (22), the locking grooves (23) are located at the lower part of the sleeve body (21), so that after the locking holes (31) in the spreading claw (30) penetrate through the protruding part (11), the spreading claw (30) is located in the locking grooves (23) and slides out of the locking fixing holes (24) in the sleeve body (21) through the wave bead screws (16) to realize locking and fixing;
the locking fixing hole (24) is positioned on the front surface of the sleeve body (21), and is vertically arranged with and communicated with the connecting hole (22);
a guide hole (25) which is vertically arranged along the locking sleeve (20) is also arranged in the locking sleeve (20), and the guide hole (25) is communicated with the connecting hole (22);
the front surface of the support rod provided with the bulge part (11) is also provided with a sliding sleeve limiting pin (18), and the sliding sleeve limiting pin (18) is positioned at the upper part of the guide pin (15);
the sleeve body (21) is further provided with a standing fixing hole (26) located at the lower part of the locking fixing hole (24), and the standing fixing hole (26) is perpendicular to and communicated with the connecting hole (22).
2. The brake joint soft tissue distractor of claim 1, wherein: the tooth-shaped part (32) is formed by a plurality of teeth (33) in parallel, and a gap is reserved between every two adjacent teeth (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011541869.9A CN112603397B (en) | 2020-12-23 | 2020-12-23 | Braking type joint soft tissue spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011541869.9A CN112603397B (en) | 2020-12-23 | 2020-12-23 | Braking type joint soft tissue spreader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112603397A CN112603397A (en) | 2021-04-06 |
| CN112603397B true CN112603397B (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011541869.9A Active CN112603397B (en) | 2020-12-23 | 2020-12-23 | Braking type joint soft tissue spreader |
Country Status (1)
| Country | Link |
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| CN (1) | CN112603397B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8438956B1 (en) * | 2007-10-24 | 2013-05-14 | Holmed Corporation | Torque indicating driver |
| CN202776409U (en) * | 2012-08-31 | 2013-03-13 | 上海交通大学附属第一人民医院 | Draw hook used for minimally invasive orthopedic surgery |
| EP3291380B1 (en) * | 2016-08-30 | 2021-09-22 | Polamco Limited | Connector assembly with a latching arrangement |
| CN209450603U (en) * | 2018-09-26 | 2019-10-01 | 天衍医疗器材有限公司 | A kind of platform file for artificial hip prosthesis' replacement operation |
| US10959716B2 (en) * | 2019-02-11 | 2021-03-30 | Warsaw Orthopedic, Inc. | Surgical retractor system and method |
| CN111700657B (en) * | 2020-07-16 | 2022-03-08 | 四川大学华西医院 | Centrum struts and shows device |
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2020
- 2020-12-23 CN CN202011541869.9A patent/CN112603397B/en active Active
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| CN112603397A (en) | 2021-04-06 |
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Inventor after: Ding Zhenxun Inventor after: Hou Yucong Inventor after: Shi Chunbao Inventor after: Guo Jing Inventor after: Wang Zhenguo Inventor after: Yue Shutong Inventor before: Hou Yucong Inventor before: Shi Chunbao Inventor before: Guo Jing Inventor before: Wang Zhenguo Inventor before: Yue Shutong |
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