CN211213244U

CN211213244U - Ultrasonic probe and transesophageal ultrasonic probe

Info

Publication number: CN211213244U
Application number: CN201920934571.0U
Authority: CN
Inventors: 符多喜; 唐明; 吴飞
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-08-11
Anticipated expiration: 2029-06-20

Abstract

An ultrasonic probe and a transesophageal ultrasonic probe, the transesophageal ultrasonic probe comprises a handle, an insertion tube, a sound head device and a driving mechanism, a sound window, the end part of the sound head, a sealing ring and part of the side wall of a containing cavity are enclosed to form a sealed medium cavity, the medium cavity is used for being filled with a medium, and part or the whole of an elastic body is arranged in the medium cavity. Because the elastomer is arranged in the medium cavity, the elastomer and the medium are positioned in the same medium cavity, when the medium expands with heat and contracts with cold, the medium can generate positive pressure or negative pressure on the elastomer, the elastomer can contract or expand under the action of medium pressure, and the elastomer plays a role of pressure compensation, so that the pressure in the medium cavity is stable, the problem that the tightness of the medium cavity is damaged due to expansion with heat and contraction with cold of the medium is avoided, the medium leakage is avoided, and the quality of acoustics and images is ensured.

Description

Ultrasonic probe and transesophageal ultrasonic probe

Technical Field

The utility model relates to an ultrasonic detection technical field, concretely relates to through esophagus ultrasonic probe and ultrasonic probe.

Background

The transesophageal ultrasonic probe is an intrabody probe and is used for being inserted into the esophagus of a human body to carry out ultrasonic detection. The sound head device (also called front end component) of the transesophageal ultrasonic probe mainly comprises a base, a sound window and a sound head, wherein the sound head is arranged in a cavity enclosed by the base and the sound window, a closed cavity is formed between the sound head and the base and between the sound head and the sound window, and a liquid or viscous sound medium is filled in the cavity so as to improve the acoustics and the image quality.

Liquid and viscous acoustic medium need be considered for filling, storing and sealing, and the liquid acoustic medium can be influenced by factors such as temperature rise of the acoustic head and external temperature rise, so that expansion with heat and contraction with cold can be generated, the acoustic head device in the prior art can cause liquid leakage risk, and finally acoustic and image quality are influenced.

Disclosure of Invention

The application provides an ultrasonic probe capable of preventing liquid leakage and a transesophageal ultrasonic probe.

In one embodiment, a transesophageal ultrasound probe is provided, comprising:

the handle is provided with a control button;

the insertion tube is a flexible hose, and one end of the insertion tube is connected with the handle;

the sound head device comprises a shell, a base, a sound window, a sound head and an elastic body, wherein the shell is connected with the other end of the insertion tube, a detection port is formed in the shell, the base is installed in the shell, an open accommodating cavity is formed in the base, the opening of the accommodating cavity is aligned with the detection port of the shell, the sound head is installed in the accommodating cavity of the base, a sealing ring is installed at one end, close to the opening of the accommodating cavity, of the sound head, the sound window is installed on the opening of the accommodating cavity, the sound window, the end part of the sound head, the sealing ring and part of the side wall of the accommodating cavity are enclosed to form a sealed medium cavity, the medium cavity is used for being filled with a medium, and part or the whole of the elastic body is installed in the medium cavity;

and the driving mechanism comprises a driving end, a connecting part and a driven end, the driving end is installed in the handle and connected with the control button, the driven end is installed in the shell of the sonic head device and connected with the sonic head, the connecting part is arranged in the insertion tube in a penetrating way, one end of the connecting part is connected with the driving end, the other end of the connecting part is connected with the driven end, and the driving mechanism is used for driving the rotation of the sonic head.

In one embodiment, the outer wall of the base is provided with a compensation hole extending to the medium cavity, and the elastic body is installed in the compensation hole.

In one embodiment, one end of the compensation hole extends to the medium cavity to be communicated with the medium cavity, the other end of the compensation hole is communicated with the external atmosphere, and the elastic body is arranged between the one end and the other end of the compensation hole and separates the medium in the medium cavity from the external atmosphere.

In one embodiment, the elastomer has a deformable cavity therein.

In one embodiment, the deformation chamber of the elastic body has an opening, and the deformation chamber of the elastic body is communicated with the outside through the opening.

In one embodiment, the deformable chambers of the elastomer are arranged to narrow in a local bend.

In one embodiment, the compensation hole is a counter bore, the elastic body is provided with a radially extending clamping portion, a pressing ring is mounted on a sunken step of the counter bore, and the clamping portion of the elastic body is fixed on the sunken step of the counter bore by the pressing ring.

In one embodiment, the elastic body is a rubber cap, and an opening of the rubber cap faces outwards.

An embodiment provides an ultrasound probe comprising a sonotrode device, the sonotrode device comprising:

the device comprises a shell, a detection device and a control device, wherein a detection port is arranged on the shell;

the base is installed in the shell, an accommodating cavity with an opening is formed in the base, and the opening of the accommodating cavity is aligned with the detection port of the shell;

the sound head is rotatably arranged in the accommodating cavity of the base, and a sealing ring is arranged at one end, close to the opening of the accommodating cavity, of the sound head;

the acoustic window is arranged on the opening of the accommodating cavity, a sealed medium cavity is enclosed by the acoustic window, the end part of the acoustic head, the sealing ring and part of the side wall of the accommodating cavity, and the medium cavity is used for filling a medium;

and the elastic body is partially or completely arranged in the medium cavity.

In one embodiment, the compensation hole is a counter bore, the elastomer is provided with a radially extending clamping portion, a pressing ring is mounted on a sunken step of the counter bore, and the clamping portion of the elastomer is fixed on the sunken step of the counter bore by the pressing ring.

According to the transesophageal ultrasonic probe or the ultrasonic probe in the embodiment, the elastic body and the medium are arranged in the same medium cavity, when the medium expands with heat and contracts with cold, the medium generates positive pressure or negative pressure on the elastic body, the elastic body contracts or expands under the action of the medium pressure, and the elastic body plays a role in pressure compensation, so that the pressure in the medium cavity is stable, the problem that the medium expands with heat and contracts with cold to damage the sealing performance of the medium cavity is avoided, the medium leakage is avoided, and the acoustic and image quality is ensured.

Drawings

FIG. 1 is a schematic diagram of a transesophageal ultrasound probe in one embodiment;

FIG. 2 is a schematic diagram of an exploded view of an acoustic head apparatus according to an embodiment;

FIG. 3 is a schematic diagram of a partial explosion structure of an acoustic head apparatus according to an embodiment;

FIG. 4 is a partial cross-sectional view of an acoustic head apparatus according to an embodiment;

FIG. 5 is a partial cross-sectional view of an acoustic head apparatus according to an embodiment;

FIG. 6 is a schematic structural view of an elastomer according to an embodiment;

FIG. 7 is a cross-sectional view of an elastomer in one embodiment.

Detailed Description

Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The utility model provides a pair of through esophagus ultrasonic probe or ultrasonic probe, the elastomer is installed to the medium intracavity of its sound head device, elastomer and medium are located same medium intracavity, when the medium expends with heat and contracts with cold, the medium will produce malleation or negative pressure to the elastomer, the elastomer will contract or expand under the effect of medium pressure, the elastomer plays the effect of a pressure compensation, make the pressure of medium intracavity stable, avoided destroying the leakproofness in medium chamber because of medium expend with heat and contract with cold, thereby the leakage of medium has been avoided, the quality of acoustics and image has been guaranteed.

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1, an embodiment provides a transesophageal ultrasound probe including a handle 100, an insertion tube 200, a sound head device 300, and a driving mechanism (not shown in fig. 1), wherein the insertion tube 200 is a flexible tube capable of bending and deforming, and both ends of the insertion tube 200 are connected to the handle 100 and the sound head device 300, respectively. The handle 100 is provided with control buttons 101, such as front and rear buttons, up and down knobs, locking wrenches, rotary switches, and the like. Actuating mechanism includes drive end, connecting portion and driven end, and the drive end is driving motor, and the drive end is installed in handle 100, and driving motor is direct or be connected with control button 101 through the controller, and the driven end is the gear train, and the driven end is installed in the casing of sonic head device 300, and the driven end is connected with the sonic head of sonic head device 300, and connecting portion are the flexible axle, and connecting portion wear to establish in insert pipe 200, and the both ends of connecting portion are connected with drive end and driven end respectively. A control button 101 on the handle 100 may be detected by the rotation of the drive mechanism driving the sound head.

The elastic body 50 is installed in the sound head device 300 of the ultrasonic probe, so that the thermal expansion and the cold contraction of the medium in the medium cavity 23 can be elastically compensated, the pressure inside and outside the medium cavity is balanced, the leakage of the medium is avoided, and the acoustics and the image quality of the ultrasonic probe are ensured.

As shown in fig. 2 and 3, the acoustic head device 300 includes a housing 10, a base 20, an acoustic window 30, an acoustic head 40, and an elastic body 50.

The casing 10 is a strip structure, the casing 10 includes an upper casing 11 and a lower casing 12, the upper casing 11 and the lower casing 12 enclose a cavity, and the lower casing 12 is provided with a detection port 13. In other embodiments, the detection port 13 may be disposed on the upper shell 11, and the housing 10 may be a one-piece structure.

In this embodiment, the base 20 is installed in the cavity of the housing 10, the base 20 has a receiving cavity with a downward opening, and the opening of the receiving cavity of the base 20 is aligned with the detecting port 13 of the housing 10.

The acoustic window 30 is installed at the opening of the accommodating cavity of the base 20, and the acoustic window 30 blocks the opening of the cavity of the base 20.

As shown in fig. 3, 4 and 5, the sound head 40 includes an ultrasonic detection assembly, the top of the receiving cavity of the base 20 is provided with a mounting portion 21 extending downward, the mounting portion 21 is of a hollow structure, the upper end of the sound head 40 is provided with an upward screw, the screw at the upper end of the sound head 40 is inserted into the mounting portion 21 of the base 20, and the sound head 40 is fixed in the receiving cavity of the base 20 by an external fixing nut 22, an annular groove is provided on an annular side surface of one end (detection end) of the sound head 40 facing the opening of the receiving cavity of the base 20, a sealing ring 41 is installed in the annular groove, the sound head 40 is hermetically connected with a side wall of the receiving cavity of the base 20 by the sealing ring 41, so that the sound head, the sealing ring 41, the sound window 30 and a part of the side wall of the receiving cavity of the base 20 enclose to form a medium cavity 23, the medium cavity 23 is used for filling, thereby optimizing the transmission and reception of sound waves by the sound head 40.

As shown in fig. 6 and 7, in the present embodiment, a compensation hole 24 is provided on an outer wall of an upper end of the base 20, the compensation hole 24 extends to communicate with the medium chamber 23, an elastic body 50 is installed in the compensation hole 24, the elastic body 50 is a rubber cap, the elastic body 50 is provided with a deformation chamber 51 with an opening at one end, and the elastic body 50 has a certain elastic deformation capability. The open end of the elastic body 50 is disposed toward the outside of the compensation hole 24, so that the deformation chamber 51 of the elastic body 50 is communicated with the outside, and the pressure inside the deformation chamber 51 is equal to the atmospheric pressure.

In one embodiment, the compensation hole 24 may be a through hole having one end extending to the medium chamber 23 to communicate with the medium chamber 23 and the other end communicating with the external atmosphere. An elastic body 50 may be disposed between the one end and the other end of the compensation hole 24. Thus, in use, the elastomer is in contact with the medium in the medium chamber on one side and the external atmosphere on the other side, thereby isolating the medium in the medium chamber from the external atmosphere.

The compensation principle of the elastic body 50 is as follows: in an initial state, the medium cavity 23 is filled with a medium, the pressure in the medium cavity 23 is consistent with the external atmospheric pressure, and if the medium cavity 23 is slightly different from the external pressure after the medium is filled, the deformation cavity 51 of the elastic body 50 can also slightly deform, so that the medium cavity 23 and the external pressure are balanced; when the medium in the medium cavity 23 is heated and expanded due to the increase of the temperature of the sound head or the outside, the pressure in the medium cavity 23 will be increased, the medium cavity 23 will generate positive pressure to act on the elastic body 50, the elastic body 50 contracts under the action of the positive pressure, the contraction of the elastic body 50 enlarges the volume of the medium in the medium cavity 23, and the pressure in the medium cavity 23 is reduced to be balanced with the outside; if the medium in the medium cavity 23 is cooled and contracted due to the decrease of the external temperature, the pressure in the medium cavity 23 is reduced, the negative pressure generated by the medium cavity 23 acts on the elastic body 50, the elastic body 50 expands under the action of the negative pressure, the expansion of the elastic body 50 reduces the volume of the medium in the medium cavity 23, and the pressure in the medium cavity 23 is increased to be balanced with the external temperature. Therefore, the elastic body 50 is arranged in the medium cavity 23, so that the pressure in the medium cavity 23 can be compensated through the deformation of the elastic body 50 no matter the medium in the medium cavity 23 expands with heat or contracts with cold, the sealing performance of the medium cavity 23 is protected, and the leakage of the medium is avoided.

In this embodiment, for better installation fixed elastomer 50, compensation hole 24 is set to be a countersunk hole, the opening of compensation hole 24 has a sunken step, elastomer 50 is a cap structure, elastomer 50 has radially extending clamping portion 52 at the edge of the opening, elastomer 50 is installed on the sunken step of compensation hole 24 through clamping portion 52, a press ring 25 is further installed on the sunken step of compensation hole 24, press ring 25 can be connected with compensation hole 24 through screw thread or interference fit, press ring 25 fixes clamping portion 52 of elastomer 50 on the sunken step of compensation hole 24, elastomer 50 installed in compensation hole 24, a portion equivalent to elastomer 50 is located in medium cavity 23, and the outer side wall of elastomer 50 contacts with the medium.

In the embodiment, as shown in fig. 4, an oil filling hole 26 is further formed in the outer wall of the base 20, the oil filling hole 26 extends to be communicated with the medium cavity 23, a detachable oil blocking screw 27 is mounted on the oil filling hole 26, the oil blocking screw 27 further seals the oil filling hole 26 through a sealing ring 28, and the oil filling hole 26 is used for introducing or discharging a medium.

As shown in fig. 6 and 7, in one embodiment, the end of the elastic body 50 away from the open end is narrowed, and the middle of the elastic body 50 has a transitional bent portion 53. The elastic body 50 is bent and narrowed, so that the elastic body 50 has an expansion allowance, and the problem of medium cold contraction compensation of the elastic body 50 is further facilitated. The narrowing of the elastic body 50 can also be arranged in the middle to form a structure with two large ends and a small middle, and the elastic body also has good expansion and contraction capacity.

In one embodiment, the elastomer is located entirely within the media chamber 23, the elastomer is a solid or has a sealed deformable chamber, and the elastomer may be in the shape of a sphere. Under the structure, the self deformation capacity of the elastic body realizes expansion and contraction of a certain volume, so that the elastic body also has certain compensation capacity, and the compensation capacity can be improved by arranging a plurality of elastic bodies.

The aforementioned sonic head device 300 with medium compensation function can be used not only on the transesophageal ultrasonic probe, but also on other ultrasonic probes, such as other types of body surface probes, intracavity probes, and the like. Therefore, in an embodiment, an ultrasonic probe is provided, which includes a sound head device, where the sound head device is the sound head device 300 in the above embodiment, the sound head device 300 includes components such as the housing 10, the base 20, the acoustic window 30, the sound head 40, and the elastic body 50, and a specific structure and a connection relationship of the sound head device 300 are not described in detail herein.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims

1. A transesophageal ultrasound probe, comprising:

the handle is provided with a control button;

2. The transesophageal ultrasound probe of claim 1, wherein the outer wall of the base is provided with a compensating hole extending to the media lumen, the elastomer fitting within the compensating hole.

3. The transesophageal ultrasound probe of claim 2, wherein the compensating orifice extends to the medium chamber at one end in communication with the medium chamber and at another end in communication with the outside atmosphere, the elastic body being disposed between the one end and the another end of the compensating orifice and separating the medium in the medium chamber from the outside atmosphere.

4. The transesophageal ultrasound probe of claim 2 or 3, wherein the elastomer has a deformable cavity therein.

5. The transesophageal ultrasound probe of claim 4, wherein the elastomeric deformation chamber has an opening through which the elastomeric deformation chamber communicates with the outside.

6. The transesophageal ultrasound probe of claim 5, wherein the elastomeric deformable cavity is in a partially curved, narrowed arrangement.

7. The transesophageal ultrasound probe according to claim 2 or 3, wherein the compensation hole is a counterbore, the elastic body is provided with a radially extending snap-in portion, and a press ring is mounted on the sunken step of the counterbore, the press ring fixing the snap-in portion of the elastic body on the sunken step of the counterbore.

8. The transesophageal ultrasound probe of claim 2 or 3, wherein the resilient body is a rubber cap, the opening of which is disposed outwardly.

9. An ultrasound probe comprising a sonotrode means, said sonotrode means comprising:

the sound head is arranged in the accommodating cavity of the base, and a sealing ring is arranged at one end, close to the opening of the accommodating cavity, of the sound head;

and the elastic body is partially or completely arranged in the medium cavity.

10. The ultrasound probe of claim 9, wherein the outer wall of the base is provided with a compensating hole extending to the media cavity, the elastomer being mounted within the compensating hole.

11. The ultrasonic probe of claim 10, wherein the compensation hole extends to the medium chamber to communicate with the medium chamber at one end and communicates with the external atmosphere at the other end, and the elastic body is disposed between the one end and the other end of the compensation hole and separates the medium in the medium chamber and the external atmosphere.

12. The ultrasonic probe according to claim 10 or 11, wherein the compensation hole is a counter bore, the elastic body is provided with a radially extending clamping portion, a pressing ring is mounted on the sunken step of the counter bore, and the clamping portion of the elastic body is fixed on the sunken step of the counter bore by the pressing ring.