CN211704792U

CN211704792U - Pubis combined separation internal fixation device

Info

Publication number: CN211704792U
Application number: CN202020005293.3U
Authority: CN
Inventors: 周君; 宫玉锁; 缪祥文; 杨学钦; 朱艳国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-10-20
Anticipated expiration: 2030-01-02

Abstract

The utility model relates to a separation internal fixation ware is united to pubis adopts the memory alloy material to make, and separation internal fixation ware is united to pubis includes pubis ramus embracing body 1, pubis ramus embracing body 1 include mainboard 4 and the curb plate 6 that is located 4 both sides of mainboard, mainboard 4, curb plate 6 be the integral type and set up the structure that the dominant view projection shape is the T type, curb plate 6 of both sides on be provided with at least a set of fixed ratchet 2, 4 below both sides perpendicular mainboard 4 symmetries of mainboard be provided with the drag hook 5 that resets, mainboard 4 and curb plate 6 between contained angle be 145-155. The surface of the main plate 4 is provided with a screw hole 3. The utility model has the advantages that: simple structure, design more laminate pubis and unite anatomical biomechanics characteristic, fixed compactness, reduction are to vascular nerve and periosteum destruction, promote patient's healing better sooner.

Description

Pubis combined separation internal fixation device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to separation internal fixation ware is united to pubic bone.

Background

Pubic symphysis refers to a soft tissue injury disease in which the positions of fibrocartilage of pubic bones on both sides are slightly displaced due to the action of factors such as external force, so that pain and lower limb lifting difficulty occur locally. The disease can be caused by car accidents, falling injuries and other traumas, and the pubic symphysis separation is less than 2.5cm and more conservative treatment is adopted. The pubic symphysis separation treatment method is that the reduction is performed by a manipulation and is suspended by a pelvis pocket or fixed by an annular adhesive plaster and an abdominal belt, and has the following defects: 1) when patients with severe pubic separation are encountered, the reduction effect is not good; 2) the pressing force is insufficient, the fixation is not firm enough, and the healing is not facilitated; 3) bedsores are easy to generate, and great difficulty is caused to nursing; 4) the patient lies in bed for a long time in a passive position, has venous embolism, is uncomfortable, difficult to excrete, has great pain and is not easy to accept psychologically. The pubis joint separation is more than or equal to 2.5cm, which can cause instability of the anterior pelvic ring and needs surgical treatment, and steel plate screw fixation, steel wire tension belt fixation and pelvic external fixation frame fixation are mostly adopted. The steel plate screw fixation is easy to generate stress concentration, and complications such as internal fixation fracture and prolapse occur. While steel wire tension bands do not provide sufficient stability to sustain early weight training and are prone to cutting the pubic bone or the steel wire breaks with little use. The external fixator is only used for rescuing patients suffering from severe open pelvic injury and traumatic shock, has a good combined separation effect on the open-book pubic bones, but cannot well resist vertical shearing force and rotary violence. And increased care difficulty and nail path infections, which are not well accepted by patients. Therefore, in view of the above-mentioned drawbacks of the conventional treatment, application No. 2016206665963, entitled: the pubis combined separation internal fixator can solve the problems in the prior art, but the clinical practice shows that the obliquely arranged reduction draw hook can press and damage obturator nerve, blood vessel and periosteum, and the mechanical stability of the whole internal fixator for resisting separation is not enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a simple structure, design more laminate pubis and unite the dissection biomechanics characteristic, fixed compactness, reduction destroy blood vessel nerve and periosteum, better more promote a pubis and unite separation internal fixation ware that the patient healed more fast.

The utility model relates to a separation internal fixation ware is united to pubis adopts the memory alloy material to make, and separation internal fixation ware is united to pubis includes pubis ramus embracing body 1, pubis ramus embracing body 1 include mainboard 4 and the curb plate 6 that is located 4 both sides of mainboard, mainboard 4, curb plate 6 be the integral type and set up the structure that the dominant view projection shape is the T type, curb plate 6 of both sides on be provided with at least a set of

fixed ratchet

2, 4 below both sides perpendicular mainboard 4 symmetries of mainboard be provided with the drag hook 5 that resets, mainboard 4 and curb plate 6 between contained angle be 145-155.

The surface of the main plate 4 is provided with a screw hole 3.

The utility model has the advantages that:

1) the pubis symphysis separation inner fixator comprises a pubis symphysis embracing body 1, the pubis symphysis embracing body 1 comprises a main plate 4 and side plates 6 positioned at two sides of the main plate 4, the main plate 4 and the side plates 6 are integrally arranged, a main projection is in a T-shaped structure, an included angle between the main plate 4 and the side plates 6 is 145-155 degrees, the pubis symphysis embracing body 1 in the T-shaped structure can be fixed on a pubis symphysis surface of a pubis during fixation, and the main plate 4 and the side plates 6 are attached to the pubis symphysis surface and more accord with the biomechanical characteristics of pubis symphysis dissection;

2) the two sides below the main board 4 are symmetrically provided with the reduction draw hooks 5 perpendicular to the main board 4, the reduction draw hooks 5 can be directly hooked on the inner edges of the obturator foramen on the two sides during reduction, the acting force arm is short, and the damage to the obturator neurovascular and the periosteum can be effectively reduced;

3) the surface of the main plate 4 is provided with a screw hole 3, and pubic symphysis separation can be further fixed.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a top view of fig. 1.

In the figure: pubis ramus embracing body 1, fixed ratchet 2, screw hole 3, mainboard 4, reduction drag hook 5, curb plate 6

Detailed Description

The present invention will be further described with reference to fig. 1 and 2.

The utility model discloses by the pubis ramus embracing body 1, fixed ratchet 2, screw hole 3, mainboard 4, the drag hook 5 that resets, curb plate 6 constitutes, specific structure is: the utility model provides a pubis symphysis separation internal fixation ware, adopts memory alloy material to make, and pubis symphysis separation internal fixation ware includes pubis ramus embracing body 1, pubis ramus embracing body 1 include mainboard 4 and the curb plate 6 that is located mainboard 4 both sides, mainboard 4, curb plate 6 be the integral type and set up the structure that the main projection shape is the T type of looking, both sides curb plate 6 on be provided with at least a set of

fixed ratchet

2, 4 below both sides perpendicular mainboard 4 symmetries of mainboard be provided with the drag hook 5 that resets, mainboard 4 and curb plate 6 between the contained angle be 145-155. The surface of the main plate 4 is provided with a screw hole 3. The device is made of a material with temperature memory function and biocompatibility, such as a nickel-titanium alloy material. The number of the fixed ratchets 2 is 4. The number of the reset drag hooks 5 is 2. The number of the screw holes 3 is 2.

The specific use method comprises the following steps: adopt the pubis to unite the crosscut, show the pubis and unite, go up the pubis fracture and tentatively reset, the pubis branch encircleing body 1 that will be T type structure struts the back in the ice brine, the part subsides that are "one" style of calligraphy structure above curb plate 6 and mainboard 4 are applied the pubis and unite the surface, peel off partial obturator ectomyium, expose the work window that mainboard 4 lower edge resets drag hook 5, to be located on curb plate 6, the two sets of fixed ratchet 2 of lower both sides and the 5 hot compress salt waters of the drag hook 5 that resets of mainboard 4 lower edge, it is fixed to make it resume the shape and pressurize. The surface of the main plate 4 is provided with a screw hole 3, so that the pubis joint separation can be further fixed, and the pubis joint stability is enhanced.

Claims

1. The utility model provides a pubis combined separation internal fixation ware, adopts memory alloy material to make, and pubis combined separation internal fixation ware includes pubis ramus embracing body (1), its characterized in that: the pubis ramus embracing body (1) comprises a main plate (4) and side plates (6) positioned on two sides of the main plate (4), the main plate (4) and the side plates (6) are of an integrated structure and are provided with a T-shaped main view projection shape, at least one group of fixed ratchets (2) are arranged on the side plates (6) on two sides, reset draw hooks (5) are symmetrically arranged on the two sides below the main plate (4) and are perpendicular to the main plate (4), and an included angle between the main plate (4) and the side plates (6) is 145-155 degrees.

2. The pubic symphysis internal fixator of claim 1, wherein: the surface of the main plate (4) is provided with a screw hole (3).