CN201822875U

CN201822875U - Knee-joint posterior cruciate ligament tibia end positioner

Info

Publication number: CN201822875U
Application number: CN2010205782962U
Authority: CN
Inventors: 张法忠; 陈德超; 张宝光
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2011-05-11
Anticipated expiration: 2020-10-14

Abstract

The utility model discloses a knee-joint posterior cruciate ligament tibia end positioner comprising a lower support. The lower end of the lower support is fixedly connected with a lower positioner; the lower positioner is internally inserted with a limiting hollow drill; the outer wall of the limiting hollow drill is provided with scale marks; the limiting hollow drill is internally inserted with a guide needle; the upper end of the lower support is inserted with an upper support; the upper end of the upper support is fixedly connected with an upper positioner which is internally inserted with a positioning arm; the front end of the positioning arm is provided with an arc-shaped broad blade; the positioning arm has a hollow structure; and the front end of the positioning arm is provided with a guide wire groove. The arc-shaped broad blade can effectively strip a rear joint capsule and protect vessel nerves behind a knee-joint. The positioner is convenient to use and not easy to shift, is safe and reliable and can effectively shorten the time of an operation.

Description

Posterior cruciate ligament of knee joint tibia end localizer

Technical field

This utility model relates to a kind of medical apparatus and instruments.

Background technology

At present, the registration arm of the posterior cruciate ligament of knee joint tibia localizer that uses in the medical treatment is not only narrow but also thin, and the positioning end of its registration arm is not only sharp but also thick, protection to knee joint rear nervus vasculairs in the operation is imprecise, guide needle departs from easily, damage knee joint rear nervus vasculairs, and also being difficult for picks a bone peels off; And, in the whole operation process of operation, getting the position that relies on operator to keep localizer fully with hands, localizer is very easily mobile; Because registration arm is a solid construction, often be positioned at the joint trailing edge, be positioned at normal stop front upper place, need to increase inboard approach behind the knee joint in case of necessity, insert arthroscope and other apparatuses, need under the direct-view of the clear visual field, derive guiding steel wire by hand from the tibia trailing edge during operation, require to remove the ligament stump during application with apparatus, therefore, present posterior cruciate ligament of knee joint tibia localizer uses very inconvenient.

The utility model content

Technical problem to be solved in the utility model provides a kind ofly can effectively peel off the posterior joint capsule, and protection knee joint rear nervus vasculairs are difficult for skew, can effectively shorten the posterior cruciate ligament of knee joint tibia end localizer of operating time.

For solving the problems of the technologies described above, the technical solution of the utility model is: posterior cruciate ligament of knee joint tibia end localizer, comprise lower carriage, described lower carriage lower end is fixedly connected with lower locating device, be plugged with spacing core drill in the described lower locating device, described spacing core drill outer wall is provided with graduation mark, be plugged with guide pin in the described spacing core drill, described lower carriage upper end is plugged with upper bracket, described upper bracket upper end is fixedly connected with localizer, and described going up in the localizer is plugged with registration arm, and the front end of described registration arm has the wide sword of arc, described registration arm is a hollow structure, and the front end of described registration arm has the seal wire groove.

As optimized technical scheme, be fixedly connected with reinforcing device between described lower carriage upper end and the described upper bracket lower end, be plugged with the reinforcing stabilizing arm in the described reinforcing device, the intersection point of the extended line of described reinforcing stabilizing arm and described guide pin is positioned at described seal wire groove.

As to improvement of the technical scheme, be plugged with the hollow guiding sleeve pipe in the described lower locating device, the described spacing core drill of pegging graft in the described hollow guiding sleeve pipe, described hollow guiding sleeve pipe and described spacing core drill are combined closely.

As to improvement of the technical scheme, described spacing core drill rear end has positive stop.

Owing to adopted technique scheme, posterior cruciate ligament of knee joint tibia end localizer, comprise lower carriage, described lower carriage lower end is fixedly connected with lower locating device, be plugged with spacing core drill in the described lower locating device, described spacing core drill outer wall is provided with graduation mark, be plugged with guide pin in the described spacing core drill, described lower carriage upper end is plugged with upper bracket, described upper bracket upper end is fixedly connected with localizer, and described going up in the localizer is plugged with registration arm, and the front end of described registration arm has the wide sword of arc, described registration arm is a hollow structure, and the front end of described registration arm has the seal wire groove.The wide sword of arc of the present utility model can effectively be peeled off the posterior joint capsule, and protection knee joint rear nervus vasculairs are easy to use, are difficult for skew, and are safe and reliable, can effectively shorten operating time.

Description of drawings

Accompanying drawing is the structural representation of this utility model embodiment;

Among the figure: the 1-lower carriage; The 2-lower locating device; The spacing core drill of 3-; The 4-guide pin; The 5-upper bracket; The last localizer of 6-; The 7-registration arm; The wide sword of 71-arc; 72-seal wire groove; The 8-reinforcing device; 9-reinforces stabilizing arm; 10-hollow guiding sleeve pipe; The 11-positive stop.

The specific embodiment

Below in conjunction with drawings and Examples, further set forth this utility model.Should be understood that these embodiment only to be used to this utility model is described and be not used in the restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications this utility model after the content of having read this utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

As shown in drawings, posterior cruciate ligament of knee joint tibia end localizer, comprise lower carriage 1, described lower carriage 1 lower end is fixedly connected with lower locating device 2, be plugged with spacing core drill 3 in the described lower locating device 2, described spacing core drill 3 outer walls are provided with graduation mark, be plugged with guide pin 4 in the described spacing core drill 3, described lower carriage 1 upper end is plugged with upper bracket 5, described upper bracket 5 upper ends are fixedly connected with localizer 6, and described going up in the localizer 6 is plugged with registration arm 7, and the front end of described registration arm 7 has the wide sword 71 of arc, described registration arm 7 is a hollow structure, and the front end of described registration arm 7 has seal wire groove 72.

The wide sword 71 of arc of the present utility model can effectively be peeled off the posterior joint capsule; protection knee joint rear nervus vasculairs; suitably lengthening is definitely to reach posterior cruciate ligament of knee joint stop below, and drop-center is the 5mm place above the tip, can guarantee that the tibial bone road is positioned at posterior cruciate ligament of knee joint tibia footprint district.

Be fixedly connected with reinforcing device 8 between described lower carriage 1 upper end and described upper bracket 5 lower ends, be plugged with in the described reinforcing device 8 and reinforce stabilizing arm 9, described reinforcing stabilizing arm 9 is positioned at described seal wire groove 72 with the intersection point of the extended line of described guide pin 4.Described reinforcing stabilizing arm 9 can avoid localizer to move effectively, handled easily.

Be plugged with hollow guiding sleeve pipe 10 in the described lower locating device 2, the described spacing core drill 3 of pegging graft in the described hollow guiding sleeve pipe 10, described hollow guiding sleeve pipe 10 is combined closely with described spacing core drill 3.Described spacing core drill 3 rear ends have positive stop 11.Spacing core drill 3 of the present utility model can be controlled and pierce the degree of depth and see through tibia and can not injure knee joint rear nervus vasculairs excessively deeply, has further guaranteed the handling safety of ankle behind the tibia.

Spacing core drill is guided by guide pin and hollow guiding sleeve pipe two-phase when drilling through the bone road, has avoided the skew that is caused by the guide pin guiding merely, has reduced the metal fragment that spacing core drill skew back and guide pin wearing and tearing cause.

Guiding steel wire directly passes the joint by the curved channel that registration arm constitutes during operation, does not need to remove the posterior cruciate ligament of knee joint stump, and the direct-view of the clear visual field just can be derived guiding steel wire from the tibia trailing edge with apparatus down, can effectively shorten operating time.

Claims

1. posterior cruciate ligament of knee joint tibia end localizer, it is characterized in that: comprise lower carriage, described lower carriage lower end is fixedly connected with lower locating device, be plugged with spacing core drill in the described lower locating device, described spacing core drill outer wall is provided with graduation mark, be plugged with guide pin in the described spacing core drill, described lower carriage upper end is plugged with upper bracket, described upper bracket upper end is fixedly connected with localizer, described going up in the localizer is plugged with registration arm, the front end of described registration arm has the wide sword of arc, and described registration arm is a hollow structure, and the front end of described registration arm has the seal wire groove.

2. posterior cruciate ligament of knee joint tibia end localizer as claimed in claim 1, it is characterized in that: be fixedly connected with reinforcing device between described lower carriage upper end and the described upper bracket lower end, be plugged with the reinforcing stabilizing arm in the described reinforcing device, the intersection point of the extended line of described reinforcing stabilizing arm and described guide pin is positioned at described seal wire groove.

3. posterior cruciate ligament of knee joint tibia end localizer as claimed in claim 1, it is characterized in that: be plugged with the hollow guiding sleeve pipe in the described lower locating device, the described spacing core drill of grafting in the described hollow guiding sleeve pipe, described hollow guiding sleeve pipe and described spacing core drill are combined closely.

4. posterior cruciate ligament of knee joint tibia end localizer as claimed in claim 1 is characterized in that: described spacing core drill rear end has positive stop.