CN217903650U - Arm sliding ring suitable for medical instrument - Google Patents

Abstract

The application provides an arm slip ring suitable for a medical instrument, which comprises a slip ring component and a rotary coupler; the sliding ring assembly comprises a stator and a rotor, the stator is provided with a stator support, a plurality of elastic sheets are installed at the bottom of the stator support, the rotor is provided with a rotor support, a through hole is formed in the middle of the rotor support, a plurality of conducting rings are arranged on the outer peripheral surface of the rotor support, and the elastic sheets are in one-to-one contact conduction with the conducting rings; the rotary coupler comprises a coupler socket and a coupler plug, and the coupler socket and the coupler plug are matched in a plugging and unplugging mode through a conductive head and a conductive jack. According to the method, the scheme is optimized to effectively improve the rotational sensitivity of the arm slip ring and the stability of signal transmission, and a good technical guarantee is provided for meeting the precision requirement of medical equipment.

Description

Arm sliding ring suitable for medical instrument

Technical Field

The application relates to the technical field of medical equipment, in particular to an arm sliding ring applicable to medical instruments.

Background

With the rapid development of the medical industry, the precision requirement on medical equipment is higher and higher.

The arm slip ring structure is commonly adopted in medical equipment, such as a CT (computed tomography) machine, a shadowless lamp and a nuclear magnetic resonance imager, so that the unlimited free rotation of any angle of 360 degrees in space is realized. The arm slip ring not only needs to have a space rotation function, but also needs to have a power signal transmission function. In the application of the arm slip ring, the type of the conductive slip ring is selected according to the application place, the size of the application space and the like.

At present, the arm slip ring of the medical equipment has two main types: a hollow structure applied to the inside of an arm adopts a stator rotor type conductive slip ring; the other type is applied to the mounting hole of the solid arm, and a rotary coupling type conductive slip ring is adopted. The two conductive slip rings are simultaneously arranged on the arm of the medical equipment. Taking the shadowless lamp in an operating room as an example, because the shadowless lamp has more arm joints, a plurality of slip rings are required to be spliced and used simultaneously, and the requirements of space rotation at any angle and signal transmission are met simultaneously.

In order to prolong the service life of the slip ring and improve the environmental adaptability, the common method is to increase the contact area or increase the contact points, which is very easy to cause poor contact, and once one contact point is poor, the whole product cannot be used. In addition, the existing arm slip ring product is large in size, cannot be installed and used in a limited space, is short in plugging service life and cannot rotate by 360 degrees.

In view of the above, there is a need for an arm slip ring of a medical apparatus to be optimally designed to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The application provides an arm sliding ring suitable for medical instrument optimizes with the stability that effectively improves rotational sensitivity and signal transmission through the scheme, provides good technical guarantee for satisfying medical equipment's required precision.

The application provides an arm slip ring suitable for a medical instrument, which comprises a slip ring component arranged in a hollow structure of an arm and a rotary coupler arranged in an arm mounting hole; wherein the content of the first and second substances,

the sliding ring assembly comprises a stator and a rotor, the rotor can rotate 360 degrees around a shaft relative to the stator, the stator is provided with a stator support and a plurality of elastic sheets fixedly installed at the bottom of the stator support, the rotor is provided with a rotor support, the middle of the rotor support is provided with a through hole used for installing a driving shaft of a pneumatic or hydraulic machine, the peripheral surface of the rotor support is provided with a plurality of conducting rings, two adjacent conducting rings are separated by an insulating ring, and each elastic sheet is in one-to-one corresponding contact conduction with each conducting ring;

the rotary coupler comprises a coupler socket and a coupler plug, the coupler plug is provided with a plug support and a conductive head arranged on the plug support, and a conductive jack matched with the conductive head is arranged in the coupler socket.

In some embodiments, the carbon brush block is arranged at the bottom of each elastic sheet.

In some embodiments, the outer surface of the conductive ring is coated with a wear layer.

In some embodiments, the conductive head includes a stepped conductive head and a cylindrical conductive head coaxially disposed at a front end of the stepped conductive head, a stepped conductive jack and a cylindrical conductive jack are coaxially disposed inside the coupler socket, the stepped conductive jack is adapted to the stepped conductive head, and the cylindrical conductive jack is adapted to the cylindrical conductive head.

In some embodiments, the two end faces of the rotor support are respectively provided with a damping piece.

In some embodiments, the conductive ring is specifically a copper conductive ring.

In some embodiments, the conductive ring is a U-shaped conductive ring.

The application provides an arm sliding ring suitable for medical instrument, including installing in the inside slip ring subassembly of arm hollow structure and installing the rotary coupler in the arm mounting hole, 360 hoop contacts are realized through shell fragment and conducting ring to the rotor of slip ring subassembly and stator. Compared with the single-point contact of the traditional slip ring, the transmission area is enlarged, the transmission effect is improved, the long-time stable work of the slip ring can be ensured, and the normal operation of the slip ring under a special environment can be ensured. The rotary coupler realizes the quick-plugging function in an operation through the coupler socket and the coupler plug, the plugging is efficient and convenient, the coupler plug can be in 360-degree rotary contact with the socket after the rotary coupler is plugged, the contact area is increased, and the stability and reliability of signal transmission in the working process of the slip ring are guaranteed. In addition, the lead connection structure is removed, the whole size of the slip ring is greatly reduced, the installation space is saved, the components can be flexibly connected, and the installation requirement is met.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a major side view of a slip ring assembly in an arm slip ring suitable for use with a medical instrument as provided herein;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a major side view of a coupler socket in a rotating coupler for use in an arm slip ring for a medical device as provided herein;

FIG. 5 is a cross-sectional view of FIG. 4;

fig. 6 is a major side view of a coupler plug in a rotating coupler for use in an arm slip ring of a medical device according to the present application.

Wherein, 1-slip ring component;

11-stator, 12-rotor, 21-coupler socket, 22-coupler plug;

111-stator support, 112-spring plate, 113-carbon brush block, 121-rotor support, 122-through hole, 123-conducting ring, 124-insulating ring, 221-plug support, 222-step-shaped conducting head and 223-columnar conducting head.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 6, fig. 1 is a main side view of a slip ring assembly in an arm slip ring for a medical device according to the present invention; FIG. 2 is a side view of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 1; FIG. 4 is a major side view of a coupler socket in a rotating coupler for use in an arm slip ring for a medical device as provided herein; FIG. 5 is a cross-sectional view of FIG. 4; fig. 6 is a major side view of a coupler plug of a rotary coupler for use in an arm slip ring of a medical device according to the present application.

The application provides an arm sliding ring suitable for medical instrument uses in medical equipment application, and this arm sliding ring specifically is a set of arm sliding ring group, including sliding ring subassembly and rotary coupler, the sliding ring subassembly is installed inside arm hollow structure, and rotary coupler installs in the arm mounting hole of solid arm.

As shown in fig. 1-3. The slip ring assembly comprises a stator 11 and a rotor 12, wherein the rotor 12 can rotate 360 degrees around a shaft relative to the stator 11, the stator 11 is provided with a stator bracket 111 and a plurality of elastic sheets 112, and each elastic sheet 112 is fixedly arranged at the bottom of the stator bracket 111. The rotor 12 has a rotor support 121, and the middle of the rotor support 121 is provided with a through hole 122, and a pneumatic or hydraulic machine driving shaft can be installed through the through hole 122. The outer circumferential surface of the rotor support 121 is provided with a plurality of conducting rings 123, two adjacent conducting rings 123 are separated by an insulating ring 124, and the elastic sheets 112 are in one-to-one contact with the conducting rings 123 to realize signal conduction.

Rotor 12 is for stator 11 when 360 rotations of axle, electrically conductive shell fragment 112 slides on conducting ring 123, stator 11 and rotor 12 are through electrically conductive shell fragment 112 and conducting ring 123 remain the contact conducting state all the time, the contact surface is wide, compact structure, can realize the switching between different subassemblies, shell fragment 112 can 360 random switch-ons carry out signal of telecommunication transmission, the transmission is more high-efficient, the transmission performance is more reliable and more stable, rely on shell fragment 112 transferable current more than 10A, can satisfy the demand of different medical equipment power and signal.

As shown in fig. 4, 5 and 6. The rotary coupler comprises a coupler socket 21 and a coupler plug 22, the coupler plug 22 is provided with a plug support 221 and a conductive head, the conductive head is installed on the plug support 221, a conductive jack is arranged inside the coupler socket 21, and the coupler plug 22 and the coupler socket 21 are in plugging fit through the conductive head and the conductive jack to realize electric conduction.

The rotary coupler adopts a plug-in matching structure and is suitable for a narrow mounting space of an arm. Trial production shows that the plugging life can reach more than 5000 ten thousand times, and the slip ring has the advantages of low resistance fluctuation, small friction force and the like, and can ensure stable operation of the slip ring for an ultra-long time due to the contact form of the circumferential surface.

The bottom of each spring plate 112 is fixedly provided with a carbon brush block 113, and the carbon brush blocks 113 increase the lubricating performance of the contact with the conducting ring 123, so that the damage of friction to the conducting ring 123 is delayed, and the service life of the rotor support 121 is prolonged. In this way, the contact of the elastic sheet 112 is made of carbon brush and noble metal alloy material, and has good conductivity, ductility, weldability, corrosion resistance, wear resistance and lubricating property.

The stator support 111 and the spring plate 112 are welded and fixed to ensure the reliability and consistency of welding and stable signal transmission.

In order to further improve the wear resistance of the conductive ring 123, a wear-resistant layer may be plated on the outer surface of the conductive ring 123. The conducting ring 123 is made of copper, the surface of the conducting ring 123 is treated by a precious metal plating process, the wear resistance, the smoothness, the conductivity, the corrosion resistance and the wear resistance of the sliding ring are guaranteed due to high hardness of the conducting ring, and the service life of the sliding ring is prolonged.

The conductive head comprises a step-shaped conductive head 222 and a column-shaped conductive head 223 coaxially arranged at the front end of the step-shaped conductive head 222, and the step-shaped conductive head 222 is mounted on the plug support 221, and the diameter of the step-shaped conductive head is gradually reduced along the axial insertion direction. The inner layer of the conductive head is an insulating layer, and the outer side of the conductive head is a conductive layer. Current above 10A may be transmitted through the metal stepped conductive head 222. The columnar conductive head 223 is a cylindrical structure and is composed of conductive rings 123 and insulating layers which are distributed at intervals, the conductive rings 123 and the insulating layers are sequentially sleeved on the plug support 221 at intervals, and the columnar conductive head 223 is used for transmitting low-voltage electric signals. The combination of the step-shaped conductive head 222 and the column-shaped conductive head 223 realizes high and low current distribution, and ensures more stable and reliable signal transmission.

The conductive head of the coupler plug 22 is made of a noble metal alloy material, which has good conductivity, ductility, weldability, corrosion resistance and wear resistance. The plug support 221 is fully welded to the conductive head by 360 degrees, so that the coupler plug 22 is in seamless contact with the coupler socket 21 during opposite insertion, and the automatically generated tension can maintain a good transmission effect.

Correspondingly, the coupler socket 21 is provided therein with a stepped conductive jack and a cylindrical conductive jack which are coaxially distributed. The stepped conductive receptacle is capable of fully mating with the stepped conductive head 222 when the conductive head is fully mated with the coupler socket 21. Compare in traditional structure, circumference is to inserting the structure, has increased and has been inserted the area to inserting, has promoted and has inserted stability to, simultaneously, cylindric electrically conductive jack can with the complete adaptation of the electrically conductive head 223 of column. In addition, the quick plug structure is helpful for quick plug use in an operating room, and the operation is more convenient.

The rotor holder 121 has damping members mounted on both end surfaces thereof, and the damping members may be elastic damping members such as springs or rubber. The shock resistance of the slip ring can be improved by arranging the vibration reduction structures at the two ends of the rotor support 121.

The conducting ring 123 is preferably made of copper, and has a high hardness characteristic, so that the wear resistance of the slip ring is ensured, and the service life of the slip ring is prolonged.

In addition, the conductive rings 123 are U-shaped conductive rings, and the adjacent conductive rings 123 are separated by insulating sheets resistant to high and low temperatures, and form a U-shaped groove structure with the conductive rings 123. The structure can increase the creepage distance between the adjacent conducting rings 123, and further enhance the reliability of the slip ring insulation.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The arm slip ring suitable for use in medical instruments provided by the present application is described in detail above. The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims (7)

1. An arm slip ring suitable for medical instruments is characterized by comprising a slip ring component arranged in a hollow structure of an arm and a rotary coupler arranged in an arm mounting hole; wherein the content of the first and second substances,

the slip ring assembly comprises a stator (11) and a rotor (12), the rotor (12) can rotate 360 degrees around a shaft relative to the stator (11), the stator (11) is provided with a stator support (111) and a plurality of elastic sheets (112) fixedly installed at the bottom of the stator support (111), the rotor (12) is provided with a rotor support (121), a through hole (122) used for installing a pneumatic or hydraulic machine driving shaft is formed in the middle of the rotor support (121), a plurality of conducting rings (123) are arranged on the outer peripheral surface of the rotor support (121), two adjacent conducting rings (123) are spaced by insulating rings (124), and the elastic sheets (112) are in one-to-one contact conduction with the conducting rings (123);

the rotary coupler comprises a coupler socket (21) and a coupler plug (22), the coupler plug (22) is provided with a plug support (221) and a conductive head installed on the plug support (221), and a conductive jack matched with the conductive head is arranged inside the coupler socket (21).

2. The slipring for an arm of a medical instrument according to claim 1, further comprising a carbon brush block (113) mounted on the bottom of each of said resilient pieces (112).

3. The arm slip ring for a medical instrument according to claim 1, wherein the outer surface of the conductive ring (123) is coated with a wear resistant layer.

4. The arm slip ring suitable for medical instruments according to any one of claims 1 to 3, wherein the conductive head comprises a stepped conductive head (222) and a cylindrical conductive head (223) coaxially disposed at a front end of the stepped conductive head (222), the coupler socket (21) is internally provided with a stepped conductive socket and a cylindrical conductive socket which are coaxially disposed, the stepped conductive socket is adapted to the stepped conductive head (222), and the cylindrical conductive socket is adapted to the cylindrical conductive head (223).

5. The slipring for an arm adapted to be used in a medical instrument according to claim 1, wherein the rotor holder (121) is provided with shock absorbing members on each of its two end surfaces.

6. Slip ring for an arm suitable for a medical instrument according to claim 1, characterized in that the conductive ring (123) is in particular a copper conductive ring.

7. The arm slip ring for a medical instrument according to claim 1, wherein the conductive ring (123) is a U-shaped conductive ring.

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