Patent Application
20180277998
The present invention concerns a medical device self-aligning connector, and a medical device having such a connector.
A conventional magnetic resonance local radio frequency (RF) coil generally is composed of two basic parts. When the coil is used for magnetic resonance imaging, a connector must be used to connect the two parts together. Since multiple RF signals must be transmitted, a pin connector is generally used for the local coil.
In view of the above, a medical device connector in accordance with the invention achieves self-alignment using a simple structure. A medical device in accordance with the invention has such a connector.
In an embodiment of the present invention, a medical device self-aligning connector is designed to be disposed on a medical device cover, and has a moving connection body that passes through a hole formed in the medical device cover, and multiple connection elements that electrically connect to a target component. The connector further has a base that supports the moving connection body, and an elastic body that press-connects the moving connection body to the medical device cover. The moving connection body produces a certain gap between the moving connection body and the hole, and moves within the range of the gap.
In the medical device self-aligning connector, preferably the moving connection body has a main connecting body and a slide plate, the main connecting body having the connection elements. The slide plate is disposed between the base and the medical device cover, and the elastic body press-connects the slide plate to the medical device cover.
In the medical device self-aligning connector, preferably a first insertion-engaged part is provided on a surface of the medical device cover that is connected to the slide plate, a first insertion-engaging part is provided on the slide plate in a position corresponding to the first insertion-engaged part, and the first insertion-engaging part is slidably insertion-engaged with the first insertion-engaged part.
In the medical device self-aligning connector, preferably a second insertion-engaged part is provided on a surface of the slide plate that faces the elastic body, and the elastic body has a second insertion-engaging part that is slidably insertion-engaged with the second insertion-engaged part.
In the medical device self-aligning connector, preferably the first insertion-engaged part is either a protrusion or a recess, and the first insertion-engaging part is the other of a protrusion or a recess.
In the medical device self-aligning connector, preferably the second insertion-engaged part is one of a protrusion or a recess, and the second insertion-engaging part is the other of a protrusion or a recess.
In the medical device self-aligning connector, preferably the main connecting body and the slide plate are integrally formed or each formed independently.
In the medical device self-aligning connector, preferably the moving connection body is one of a plug or a jack.
In the medical device self-aligning connector, preferably the elastic body has a spring and a push-head to which the spring applies a force, or the elastic body is a spring.
In addition, the present invention encompasses a medical device, having the medical device self-aligning connector.
According to the invention, the self-aligning medical device connector and the medical device having same are realized using a simple structure.
The present invention is explained in detail below by a number of embodiments.
As used herein, “schematic” means “serving as an, example or illustration”. No drawing or embodiment described herein as “schematic” should be interpreted as a more preferred or more advantageous technical solution.
To make the drawings uncluttered, only those parts relevant to the present invention are shown schematically in the drawings; they do not represent the actual structure thereof as a product. Furthermore, to make the drawings uncluttered for ease of understanding, in the case of components having the same structure or function in certain drawings, only one of these is drawn schematically, or only one is provided with a reference numeral.
The plug 20 has a pin block 201, and pins 202 for electrically connecting to sockets (see
The slide plate 30 is substantially in the form of a rectangular plate, and used for supporting another end of the pin block 201 (the end of the pin block 201 where pins 202 are not disposed). Moreover, two protruding parts 31, projecting outward from the slide plate 30, are provided at long edges of the slide plate 30. The two protruding parts 31 have the same structure, so only one of them is described here. Moreover, a protrusion 311 is provided on a surface of the protruding part 31 that is opposite the coil cover 10, and a second recess 312 is provided on another surface on the opposite side to the surface on which the protrusion 311 is formed (see
The base 40 is formed so as to have a pair of tubular cavities 41. One end of the cavity 41 is closed, while the other end is open, and a spring 42 and a push-head 43 are accommodated in the cavity 41; the push-head 43 is provided with a semicircular protrusion at a top end of a cylindrical main body. Moreover, the base 40 is provided with through-holes 44, and screws 45 are passed through the through-holes 44 and screwed into the threaded holes 13 of the coil cover 10, thereby fixing the base 40 to the coil cover 10.
An elastic body is disposed in the tubular cavity 41 of the base 40. In this embodiment, the elastic body comprises the spring 42 and the push-head 43; the protrusion of the push-head 43 is inserted into the second recess 312 of the slide plate 30, and can slide in the second recess 312. The spring 42 applies a force to the push-head 43 in the direction of the slide plate 30. That end of the pin block 201 which is provided with the pins 202 is passed through the opening at one end of the pin cover 203, and the other end of the pin block 201 is disposed in the slot 32 of the slide plate 30; at the same time, the opening at the other end of the pin cover 203 is insertion-engaged with a substantially central part of the slide plate 30. The plug 20 and slide plate 30 are thereby fitted together. The assembled plug 20 is then passed through the opening 11 of the coil cover 10, such that the pins 202 protrude to the outside of a coil. It must be explained that there is a gap 6 between the pin cover 203 of the plug 20 and the opening 11 of the coil cover 10. Furthermore, the protrusion 311 on one surface of the protruding part 31 is inserted into the first recess 12 formed on that surface of the coil cover 10 which is opposite thereto.
An operational state of the medical device self-aligning connector 1 to which this embodiment relates is explained below with reference to
When a medical device self-aligning connector of the present application, for example a lower coil plug 1, is inserted into an upper coil jack 2, in this embodiment, the jack 2 comprises a jack body 50 and a coil cover 60; if the pins 202 of the coil plug 1 are not aligned with sockets 501 of the jack body 50, then the plug 20 abuts the coil cover 60 of the jack 2, and the plug 20 is caused to slide within the range of the gap 6; at the same time, the plug 20 drives the slide plate 30 to move, and the protrusion 311 of the slide plate 30 then slides in the first recess 12 formed on the coil cover 60. The slide plate 30 is then pushed such that the push-head 43 moves in a direction causing compression of the spring 42, until the pins 202 of the plug 20 are aligned with the sockets 501 of the jack body 50. When the plug 1 is pulled off the jack 2, the spring 42 is reset to an original position, and the push-head 43 returns to an original position of the second recess 312, then pushing the slide plate 30 to slide, such that the protrusion 311 is reset so as to be located in an original position of the first recess 12. Thus, once the plug 1 is pulled off the jack 2, the plug 20 is reset to an initial, original position.
According to the embodiments of the present invention described above, the plug 20 can be moved within the range of the gap 6, such that the pins 202 of the plug 1 are aligned with the sockets 501 of the jack 2, and at the same time the plug 20 drives the slide plate 30, such that the slide plate 30 slides along the coil cover 10. Thus friction can be reduced when the plug 1 is connected to the jack 2, so that insertion and removal are more convenient, in turn avoiding the undesirable situation whereby the pins are bent due to pressure caused by a rigid connection when the pins are not aligned with the sockets.
In the description of the embodiments above, a plug is used as a connecting element of the medical device self-aligning connector, but the structure would also be suitable for a jack. In addition, in this embodiment, the plug 20 and the slide plate 30 form a moving connection body, and the case where the plug 20 and the slide plate 30 are formed separately is taken as an example for the purposes of explanation; however, the plug 20 and the slide plate 30 could also be integrally formed. In addition, the case where the first recess 12 is formed on the coil cover 10, and the protrusion 311 slidably insertion-engaged with the first recess 12 is formed on the slide plate 30, is taken as an example for the purposes of explanation; however, it would also be possible for a protrusion to be formed on the coil cover 10, and for a recess slidably insertion-engaged with the protrusion to be formed on the sliding plate 30.
In addition, in the embodiments described above, the case where the elastic body comprises the spring 42 and the push-head 43 is illustrated; however, this is not a limitation, and it would also be possible for no push-head 43 to be provided, so that the sliding plate 30 is pushed directly by the spring 42.
In addition, in the embodiments described above, the case where the self-aligning connector is disposed on a coil is taken as an example for the purpose of explanation, but the structure of the self-aligning connector of the present utility model is not restricted to being used for a coil, and could of course be used for a connector requiring aligned connection in a medical device or in another component part of a medical device.
Although modifications and changes may be suggested by those skilled in the art, it is the intention of the Applicant to embody within the patent warranted hereon all changes and modifications as reasonably and properly come within the scope of the Applicant's contribution to the art.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201720300287.9 | Mar 2017 | CN | national |
