CN214073427U

CN214073427U - Minimally invasive hip joint surgery retractor with front side approach

Info

Publication number: CN214073427U
Application number: CN202022505247.2U
Authority: CN
Inventors: 马金忠; 朱力波; 桑伟林; 陆海明; 王聪; 薛松
Original assignee: Shanghai First Peoples Hospital
Current assignee: Shanghai First Peoples Hospital
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-08-31
Anticipated expiration: 2030-11-03

Abstract

The utility model relates to a wicresoft hip joint surgery drag hook that front side entered way, including the drag hook body, the drag hook body constitute by first vaulting pole, second vaulting pole and third vaulting pole, the back tip of first vaulting pole is provided with a fixed stay ear, is provided with arc expansion limit in the left and right sides that is close to back tip, the preceding end connection of first vaulting pole has the second bracing piece, just second vaulting pole one end is connected with first vaulting pole, and the other end is connected with the third vaulting pole, the head end of third vaulting pole still is fixed with little curved many paws structure, many paws structural still be provided with anti-skidding line. Its advantages are: the utility model reduces the shielding of the surgical sight line by the retractor body in the operation by improving the fitting degree of the retractor body and the acetabulum skeleton of the human body and the design of the narrower head part in the middle part, and the design of the multi-claw structure is fit with the radian of the acetabulum so as to be convenient for tightly fitting the acetabulum; the design of the tail arc-shaped expansion edge is attached to the palm, so that the holding hand feeling of a doctor is increased.

Description

Minimally invasive hip joint surgery retractor with front side approach

Technical Field

The utility model belongs to the technical field of the operation instrument technique and specifically relates to a wicresoft hip joint operation drag hook of front side approach.

Background

Artificial hip replacement surgery has gradually become a mature solution to the problem of hip destruction in hip osteoarthritis, rheumatoid arthritis, ankylosing spondylitis. In the artificial hip replacement, the exposure of the hip joint is important, and it is necessary to secure the field of view during the operation using a retractor (a metal instrument for pulling open an incision portion to maintain the field of view, also called a retractor).

At present, the head of a hip joint operation draw hook with a front access is of a straight structure and is not matched with the physiological structure of the acetabulum part of a human body, the joint degree of the head of a draw hook body and the acetabulum is poor, the visual field of the operation is seriously shielded in the operation, and the bone is easily damaged; the head is difficult to fit with the acetabulum spherical structure due to the design of a single claw or two claws at the head; the middle part of the drag hook is wider than the head part or has the same width, so that the surgical visual field can be shielded; the straight structure design of the holding part of the drag hook has poor palm fitting effect and poor holding effect.

The Chinese patent application: CN2558334Y discloses a drag hook for acetabulum triple osteotomy, relates to orthopedics, in particular to an instrument for acetabulum triple osteotomy, and belongs to the technical field of orthopedic medical instruments. The technical problem to be solved is to provide a drag hook which meets the requirement of acetabulum triple osteotomy. The hook comprises a handle, a hook rod and a hook head, wherein the handle, the hook rod and the hook head are sequentially connected, the hook rod is bent relative to the handle, the hook head is flat, the front end of the hook head is narrow, the rear end of the hook head is wide, the front end of the hook head can be tilted upwards to form a small arc-shaped hook, and an included angle between the small arc-shaped hook and the hook rod ranges from 140 degrees to 160 degrees. The device can fully expose ischium branch, pubic branch, skeleton ischium macropore, satisfies the operation requirement of operation, but the device head end can lead to head and the globular structure of acetabulum to be difficult to laminate for the setting of platykurtic single claw structure, and the constant width setting at drag hook middle part shelters from doctor's operation field of vision easily moreover, influences patient's normal operation process.

Therefore, there is a need for a novel minimally invasive hip joint surgery retractor with a front access, which has a simple structure and is convenient to operate, and can reduce the blockage of the retractor body in the surgery to the surgery, increase the surgical field and improve the comfort of the operator.

Disclosure of Invention

The utility model aims at solving the problem that the head of the hip joint surgery drag hook of front side approach is not matched with the physiological structure of the acetabulum position of a human body, and then causes the laminating degree not good, influences the operation field of vision in the art to the palm laminating effect that the drag hook holding part's straight structural design leads to is not good, holds the poor problem of effect, provides a minimally invasive hip joint surgery drag hook of front side approach to this specially.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a minimally invasive hip joint surgery retractor with a front side access comprises a retractor body, wherein the retractor body consists of a first support rod, a second support rod and a third support rod, a fixed support lug is arranged at the rear end part of the first support rod, the fixed support lug and the first support rod are arranged at an included angle of 110 degrees and 120 degrees, arc-shaped expansion edges are arranged on the left side and the right side close to the rear end part, the front end part of the first support rod is connected with the second support rod, one end of the second support rod is connected with the first support rod, and the other end of the second support rod is connected with the third support rod; the whole third vaulting pole be the arc structure, the tip of the head of third vaulting pole still is fixed with little curved multi-claw structure, the multi-claw structural anti-skidding line that still is provided with.

In the minimally invasive hip joint surgery retractor with the front access, as a preferred scheme, the first support rod, the second support rod and the third support rod are connected in a seamless mode, and an included angle between the first support rod and the second support rod is 145-165 degrees.

In the minimally invasive hip joint surgery retractor with the front access, as a preferable scheme, the width of the first support rod is the same as that of the second support rod, and the width of the second support rod is smaller than that of the third support rod.

In the minimally invasive hip joint surgery retractor with the front access, as a preferred scheme, the radian radius of the third support rod is 20-40mm, and the overall radian of the third support rod is matched with the arc shape of the acetabulum of a human body.

In the minimally invasive hip joint surgery retractor with the front access, as an optimal scheme, the radian radius of the arc-shaped expansion edge is 10-30mm, and the arc-shaped structure changed by arc-shaped expansion is attached to the palm surface of a human.

In the minimally invasive hip joint surgery retractor with the front access, as a preferable scheme, the multi-claw structure is set to be 3-5 claws.

The utility model has the advantages that:

1. the utility model discloses simple structure, convenient operation, the practicality is strong, dissects the laminating degree of radian through promoting drag hook body and human acetabulum, and then has reduced stopping of drag hook body to the operation sight in the art, increases the operation field of vision, prevents to damage the bone in the art, improves the operation quality.

2. In the utility model, the end part of the third support rod head has a multi-claw structure and is provided with anti-skid lines, so that the drag hook can be placed more stably and firmly; the design of the arc-shaped expansion edge on the drag hook body and the first support rod can be more attached to the palm, so that the holding effect is better, the drag hook body is prevented from slipping in hands of a doctor, the neck of the femur is pressed down more effectively, and the view field of the acetabulum is better exposed.

3. The utility model discloses in the width that the third vaulting pole set up is compared to the second vaulting pole on the drag hook body is less, can prevent that it from blockking sight in the doctor art, increases the operation field of vision, has reduced the risk of operation, has reduced the unnecessary injury of patient in the art.

Drawings

Fig. 1 is a schematic structural view of the minimally invasive hip joint surgery retractor with a front access in the utility model.

Fig. 2 is a partial structural schematic view of the first stay bar on the minimally invasive hip joint surgery retractor with a front access according to the present invention.

Fig. 3 is a schematic structural view of the minimally invasive hip surgery retractor for anterior approach described in example 2.

Fig. 4 is a partial structural schematic view of the first stay bar of the minimally invasive hip surgery retractor for anterior approach described in embodiment 2.

Detailed Description

The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents also fall within the scope of the appended claims.

The reference numerals and components referred to in the drawings are as follows:

1. the drag hook body 2, the first supporting rod 3 and the second supporting rod

4. A third stay bar 5, a fixed support ear 6, an arc expansion edge

7. Multi-claw structure 8. anti-skid pattern

Example 1 minimally invasive hip surgery retractor with anterior approach

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of the anterior approach retractor for minimally invasive hip surgery of the present invention. Fig. 2 is a schematic structural view of the first stay bar on the minimally invasive hip joint surgery retractor with a front access according to the present invention.

The main type of the device is that the shielding of the surgical sight line by the retractor in the operation is reduced by improving the fitting degree of the retractor body and the acetabulum skeleton of a human body and the design that the middle part of the retractor is narrower than the head part; the design of the arc-shaped extension edge at the tail part can be mutually attached to a palm, the holding hand feeling of a doctor on the retractor is increased, the comfort level of the doctor in use is improved, and particularly, the minimally invasive hip joint surgery retractor with the front side approach is provided, which comprises a retractor body 1, wherein the retractor body 1 consists of a first support rod 2, a second support rod 3 and a third support rod 4, the first support rod 2, the second support rod 3 and the third support rod 4 can be in a cuboid structure or a semi-cylinder structure, a fixed support lug 5 is arranged at the rear end part of the first support rod 2, an included angle of 110 degrees and 120 degrees is formed between the fixed support lug 5 and the first support rod 2, the fixed support lug 5 can play a certain supporting role in the process of pressing by the user during surgery and is not easy to slip, and when the hand is few, other matched tools can pass through the fixed support lug, the fixed supporting ears 5 are combined with the corresponding fixed support and fixed at the position of the operating bed, partial manpower is saved, the arc-shaped expanding edges 6 are arranged at the left side and the right side close to the rear end part, the arrangement can be more attached to a palm, the holding effect is better, the retractor body 1 can be effectively prevented from slipping from the hand of an operator, the neck of the femur is pressed down more effectively, the view field of the acetabulum is better exposed, and the length, the width and the radian of the arc-shaped expanding edges 6 can be set according to the conditions of different operators, so that the comfort when the operator operates the retractor is improved, and the working efficiency is improved; the front end part of the first support rod 2 is connected with a second support rod 3, one end of the second support rod 3 is connected with the first support rod 2, and the other end of the second support rod 3 is connected with a third support rod 4; the third support rod 4 is integrally of an arc-shaped structure, and when the retractor is used, the head of the retractor body can adapt to the radian of the acetabulum of a human body, so that the retractor can better fit the acetabulum structure of the human body, the visual field of an operation is increased, the bone is prevented from being damaged in the operation, and the operation quality is improved; the head end part of the third support rod 4 is further fixed with a multi-claw structure 7, the multi-claw structure 7 is further provided with anti-skidding lines 8, the arrangement can be used for more effectively clinging to the acetabulum, the femoral head slippage in the pulling-out process is prevented, unnecessary troubles are prevented from being caused to patients and medical staff, and the normal operation of the operation is influenced.

In this embodiment, the first stay bar 2, the second stay bar 3 and the third stay bar 4 are preferably connected in a seamless manner, and the included angle between the first stay bar 2 and the second stay bar 3 is 145-165 degrees, so that the holding degree of the draw hook during the actual operation of an operator can be better improved, and the comfort level of the operator in use can be improved.

In this embodiment, preferably, the width of the first brace 2 is the same as that of the second brace 3, and the width of the second brace 3 is smaller than that of the third brace 4, which prevents the first brace from blocking the view of the surgeon during the operation and increases the operation field.

In this embodiment, the radius of the arc of the third support rod 4 is preferably 20-40mm, and the overall arc of the third support rod 4 is adapted to the arc of the acetabulum of the human body. More should set up the human acetabulum structure of laminating that can be better, increase the operation field of vision, prevent to damage the bone in the art, improve the operation quality.

In this embodiment, the radius of the arc-shaped expanding edge 6 is preferably 10-30mm, and the arc structure of the arc-shaped expanding edge 6 is attached to the palm surface of a human. The arrangement can effectively prevent the drag hook body from slipping from the hands of a doctor, and improves the holding effect of the drag hook by the doctor during operation.

In this embodiment, the multi-jaw structure 7 is preferably configured as 3 jaws, which can facilitate the close contact with the acetabulum, so that the acetabulum part can be more clearly exposed, and the subsequent surgical treatment of the patient is facilitated.

It should be noted that: the utility model has simple structure, convenient operation and strong practicability, and reduces the blockage of the hook body to the operation sight in the operation by improving the laminating degree of the hook body and the anatomical radian of the acetabulum of the human body, increases the operation visual field, prevents the bone from being damaged in the operation and improves the operation quality; the end part of the third support rod head is provided with a multi-claw structure and is provided with anti-skid lines, so that the drag hook can be placed more stably and firmly; the design of the retractor body and the arc-shaped expanding edge on the first support rod can be more attached to the palm, so that the holding effect is better, the retractor body is prevented from slipping off from the hands of a doctor, the neck of the femur is pressed down more effectively, and the view field of the acetabulum is better exposed; and the width that the second vaulting pole of drag hook body set up is less than the third vaulting pole, can prevent that it from blockking doctor's sight in the art, increases the operation field of vision, has reduced the risk of operation, has reduced unnecessary injury in the patient art.

Embodiment 2A minimally invasive hip surgery retractor with anterior approach

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of the anterior approach retractor for minimally invasive hip surgery of the present invention 2. Fig. 4 is a partial structural schematic view of the first stay bar of the minimally invasive hip surgery retractor for anterior approach described in embodiment 2.

The minimally invasive hip surgery retractor with the front access in the embodiment is basically the same as the retractor in the embodiment 1, and the difference is that the retractor body 1 is in an arc-shaped semi-cylindrical structure, and a multi-claw structure 7 connected with a third support rod 4 is set to be 4 claws.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims

1. A minimally invasive hip joint surgery retractor with a front side access comprises a retractor body and is characterized in that the retractor body consists of a first support rod, a second support rod and a third support rod, a fixed support lug is arranged at the rear end of the first support rod, the fixed support lug and the first support rod are arranged at an included angle of 110 degrees and 120 degrees, arc-shaped expansion edges are arranged on the left side and the right side close to the rear end, the front end of the first support rod is connected with the second support rod, one end of the second support rod is connected with the first support rod, and the other end of the second support rod is connected with the third support rod; the whole third vaulting pole be the arc structure, the tip of the head of third vaulting pole still is fixed with little curved multi-claw structure, the multi-claw structural anti-skidding line that still is provided with.

2. The minimally invasive hip surgery retractor with anterior approach according to claim 1, characterized in that the first stay bar, the second stay bar and the third stay bar are connected seamlessly, and the included angle between the first stay bar and the second stay bar is 145-165 °.

3. The minimally invasive hip surgery retractor according to the anterior approach as recited in claim 1, wherein the width of the first stay is the same as the width of the second stay, and the width of the second stay is smaller than the width of the third stay.

4. The minimally invasive hip surgery retractor with the front access according to claim 1, characterized in that the radian radius of the third stay bar is 20-40mm, and the overall radian of the third stay bar is adapted to the acetabulum arc of a human body.

5. The minimally invasive hip surgery retractor with anterior approach according to claim 1, characterized in that the arc radius of the arc-shaped expansion edge is 10-30mm, and the arc-shaped structure with the arc-shaped expansion is attached to the palm surface of a human.

6. The anterior approach for minimally invasive hip surgery retractor according to claim 1, wherein the multi-jaw structure is configured as 3-5 jaws.