CN215874700U

CN215874700U - Ultrasonic probe sleeve for liver cirrhosis laparoscope

Info

Publication number: CN215874700U
Application number: CN202122130532.5U
Authority: CN
Inventors: 王希; 朱凯; 王晓颖; 周俭; 王文平
Original assignee: Zhongshan Hospital Fudan University
Current assignee: Zhongshan Hospital Fudan University
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-22
Anticipated expiration: 2031-09-03

Abstract

The utility model provides an ultrasonic probe sleeve for liver cirrhosis laparoscopy, which relates to the technical field of medical auxiliary instruments, and comprises a cylindrical capsule cavity with an opening at one end and a flexible water bag arranged on one side outside the capsule cavity, wherein an ultrasonic coupling agent is filled in the capsule cavity; the common surface of the flexible water sac and the sac cavity can cover the crystal surface at one side of the ultrasonic probe. The capsule cavity is filled with the ultrasonic coupling agent, so that the crystal surface of the ultrasonic probe can be fully attached to the capsule cavity, and the influence of air on the ultrasonic conduction effect is eliminated; the flexible water sac is soft and deformable, can be completely attached to the surface of a hardened liver during use, so that the ultrasonic probe can be attached to the surface of the liver, and the formation of air cavities is avoided. The ultrasonic probe sleeve provided by the utility model can further reduce air among the ultrasonic probe, the ultrasonic probe sleeve and the detected surface, and prevent the influence on the imaging of the rear tissue due to the reflection and scattering of sound waves caused by the air.

Description

Ultrasonic probe sleeve for liver cirrhosis laparoscope

Technical Field

The utility model relates to the technical field of medical auxiliary instruments, in particular to an ultrasonic probe sleeve for liver cirrhosis laparoscopy.

Background

Cirrhosis is a clinically common chronic progressive liver disease, diffuse liver damage is formed by long-term or repeated action of one or more causes, and patients with cirrhosis have hard liver texture and uneven surface due to hardened nodules. When a laparoscopic liver surgery is performed, a laparoscopic ultrasonic probe is often required to probe the liver so as to determine the position of a tumor and the relationship between the tumor and an important pipeline to guide a surgery path and prevent small tumors from being missed. According to the ultrasonic imaging principle, the ultrasonic probe needs to be tightly attached to the surface to be checked, so that the existence of air between contact surfaces is avoided, and the influence of sound wave reflection and scattering caused by gas on imaging of rear tissues is prevented. Due to the existence of cirrhosis, the endoscopic probe cannot be well attached to the uneven and hard liver surface, and the interference of air in the formed cavity will seriously affect the accurate positioning of the endoscopic probe on the liver tumor.

In order to overcome this problem, when performing ultrasound examination in open-abdominal liver surgery, the fluid is often used to avoid the poor adhesion between the probe and the hardened liver surface in clinic, however, in laparoscopic liver surgery, the method of increasing the adhesion by using the fluid is difficult and unstable. At present, for ultrasonic exploration of uneven surfaces, the irregular gap between a hard ultrasonic probe and a detected surface is filled up by increasing the dosage of a coupling agent or an acoustic pad clinically, but the two methods are not suitable for laparoscopic surgery. Chinese patent CN212025634U discloses an ultrasonic probe protective sheath with a water sac, which is provided with a water sac cavity and a probe cavity from top to bottom in sequence, wherein the water sac cavity is used for containing liquid, so that the inner wall tissue of a patient can be effectively attached during use, and the ultrasonic conduction effect is improved. However, the ultrasonic probe sleeve with the water sac can not improve the imaging condition of the crystal of the laparoscopic ultrasonic probe positioned at the side, the probe sleeve can not flexibly pass through a trocar hole with the inner diameter of 1.2cm, and the redundant structure of the probe sleeve can interfere with the visual field of the laparoscopic operation and the operation fineness.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model designs an ultrasonic probe sleeve for laparoscopic ultrasound of a liver cirrhosis patient in a targeted manner, and improves a sound guide probe sleeve for jointing an ultrasonic probe and the surface of a liver so as to easily perform ultrasonic examination on the hardened liver in a laparoscopic surgery.

In order to achieve the purpose of the utility model, the utility model provides an ultrasonic probe sleeve for liver cirrhosis laparoscopy, which is characterized by comprising a cylindrical capsule cavity with an opening at one end and a flexible water sac arranged at one side outside the capsule cavity, wherein the capsule cavity is filled with an ultrasonic coupling agent; the common surface of the flexible water sac and the sac cavity can cover the crystal surface at one side of the ultrasonic probe.

Preferably, the flexible water bag is filled with water or ultrasonic couplant.

Preferably, the flexible water sac is at least 0.1cm away from the closed end of the sac cavity.

Preferably, the widest point of the ultrasound probe cover does not exceed the inner diameter of the trocar bore.

Preferably, the edge of one end of the opening of the capsule cavity is curled outwards.

Preferably, the common surface of the capsule cavity and the flexible water capsule is 2cm multiplied by 1 cm.

Preferably, the ultrasonic couplant in the capsule cavity at least covers the common surface of the capsule cavity and the flexible water sac.

Preferably, the flexible water sac and the sac cavity are integrally formed.

Preferably, the ultrasonic probe sleeve is made of latex.

Compared with the prior art, the utility model has the beneficial effects that:

the ultrasonic probe sleeve provided by the utility model is provided with a capsule cavity for containing an ultrasonic probe and a flexible water bag arranged on one side outside the capsule cavity, and the capsule cavity is filled with an ultrasonic coupling agent, so that the crystal surface of the ultrasonic probe can be fully attached to the capsule cavity, and the influence of air on the ultrasonic conduction effect is eliminated; the flexible water sac is soft and deformable, can be completely attached to the surface of a hardened liver during use, so that the ultrasonic probe can be attached to the surface of the liver, and the formation of air cavities is avoided. The ultrasonic probe sleeve provided by the utility model can further reduce air among the ultrasonic probe, the ultrasonic probe sleeve and the detected surface, and prevents sound wave reflection and scattering caused by the air from influencing the imaging of the rear tissue by excluding the air among all parts for ultrasonic propagation. The ultrasonic probe sleeve provided by the utility model is simple and small, has low manufacturing cost, and the flexible water sac can deform and is convenient to enter and exit a trocar hole for laparoscopic surgery. The simplest design is used for solving the problem of poor ultrasonic imaging of cirrhosis.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

FIG. 1 is a schematic view of the construction of an ultrasound probe cover of the present invention;

wherein, 1 is a capsule cavity, 11 is an open end of the capsule cavity, 12 is a closed end of the capsule cavity, and 2 is a flexible water bag;

FIG. 2 is a side view of an ultrasound probe cover of the present invention;

wherein 12 is a closed end of the capsule cavity, and 2 is a flexible water capsule;

FIG. 3 is a schematic structural view of an ultrasound probe;

wherein 3 is an ultrasonic probe, and 31 is a crystal surface at one side of the ultrasonic probe;

FIG. 4 is a schematic view of an edge curl configuration of an ultrasound probe cover of the present invention;

wherein, 1 is a capsule cavity, 11 is one end of the opening of the capsule cavity, and 2 is a flexible water bag.

Detailed Description

As shown in figures 1-2, the utility model provides an ultrasonic probe sleeve for liver cirrhosis laparoscopy, which comprises a cylindrical capsule cavity 1 with an opening at one end and a flexible water sac 2 arranged at one side outside the capsule cavity, wherein an ultrasonic couplant is filled in the capsule cavity; the common surface of the flexible water sac 2 and the sac cavity can cover the crystal surface 31 on one side of the ultrasonic probe.

The capsule 1 of the utility model is used for accommodating an ultrasonic probe, and the inner diameter of the capsule is similar to that of the ultrasonic probe so as to tightly sleeve the probe. The capsule cavity is filled with the ultrasonic coupling agent, so that the adsorption force of the capsule cavity and the ultrasonic probe can be enhanced to prevent the ultrasonic probe from slipping, and more importantly, the ultrasonic probe can be effectively prevented from having air between the ultrasonic probe and the capsule cavity to influence the ultrasonic detection imaging effect. Preferably, the ultrasonic couplant filled in the capsule cavity at least covers the common surface of the flexible water capsule and the capsule cavity. In order to further reduce the possibility of air formation at the contact surface of the capsule cavity and the ultrasonic probe, the ultrasonic probe sleeve of the utility model can also comprise a preset ultrasonic couplant for injection after the ultrasonic probe enters the capsule cavity.

The flexible water bag is soft in texture and can be completely attached to the surface of a hardened liver. The flexible "water bag" of the present invention is only a description way, and the content of the flexible "water bag" can be various liquids capable of transmitting ultrasonic waves, including but not limited to water or ultrasonic couplant. The ultrasonic couplant can be a medical ultrasonic couplant taking carbomer as a main component. The common surface of the flexible water bag and the bag cavity can cover the crystal surface (shown in figure 3) on one side of the ultrasonic probe, so that the flexible water bag can cover the detection range of the ultrasonic probe while deforming, and dead angles are avoided. In a specific embodiment of the utility model, the common plane of the cavity and the flexible water sac is 2cm x 1 cm.

Preferably, the flexible water sac is at least 0.1cm away from the closed end 12 of the sac cavity. As shown in FIG. 1, the flexible water bladder is spaced from the closed end 12 of the bladder lumen to facilitate passage of the ultrasound probe cover through the trocar aperture to the location to be probed. Preferably, the widest part of the ultrasonic probe sleeve does not exceed the inner diameter of the trocar hole so as to be suitable for the requirement of ultrasonic detection of liver cirrhosis laparoscopy. the trocar aperture is typically 1.2cm, i.e., preferably no more than 1.2cm at the widest point of the ultrasound probe cover of the present invention. As shown in figure 4, according to the utility model, in order to facilitate the ultrasonic probe to enter the sac cavity, the edge of one end of the opening of the sac cavity is curled outwards, and the curled edge is straightened after the front end of the ultrasonic probe reaches the deepest part of the sac cavity, so that the problem that the ultrasonic probe cannot be sleeved into the probe due to a small sleeve opening is avoided. Preferably, the flexible water bag and the bag cavity are integrally formed. The ultrasonic probe sleeve can be made of latex or similar soft materials.

The application method of the ultrasonic probe sleeve comprises the following steps: the ultrasonic probe is extended into the capsule cavity of the ultrasonic probe sleeve, and the ultrasonic probe is adjusted to ensure that the crystal surface 31 at one side of the ultrasonic probe is aligned with the common surface of the capsule cavity and the flexible water sac, and a small amount of sterile couplant can be continuously added into the ultrasonic probe sleeve in order to further eliminate air. The ultrasonic probe with the ultrasonic probe sleeve is inserted into the body of a patient, and the advantage of the deformability of the flexible water bag is utilized to ensure that the ultrasonic probe is completely attached to the surface of the hardened liver for ultrasonic detection.

The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.

Example 1

As shown in fig. 1-2, the ultrasound probe cover is composed of a capsule cavity 1 with an opening at one end and a flexible water sac 2 arranged at the outer side of the capsule cavity. The diameter of the capsule cavity 1 is 6mm and the length is 8cm, the edge of the opening end 11 of the capsule cavity is curled outwards when the capsule cavity is not used, a flexible water bag with the length of 2cm, the width of 1cm and the thickness of 4mm is arranged on the side close to the closed end 12 of the capsule cavity, the size of the shared surface of the capsule cavity and the flexible water bag is about 2cm multiplied by 1cm, and the crystal surface 31 (the size of the crystal surface is about 2cm multiplied by 0.5cm) on the side of the head end of the laparoscope ultrasonic probe can be completely covered. 2mL of non-gas sterilization type medical ultrasonic couplant (meeting the industrial standard YY0299-2016) which takes carbomer as a main component, propylene glycol, glycerol, polyethylene glycol, triethanolamine and the like as auxiliary components and takes trichlorohydroxydiphenyl ether as a sterilization component is filled in the flexible water bag.

When the laparoscope ultrasonic probe is used, the ultrasonic probe is firstly extended into the capsule cavity 1, the edge which is curled outwards is straightened, and a small amount of sterile couplant is added between the probe sleeve and the probe, so that the inner side surface of the couplant capsule of the probe sleeve is completely attached to the crystal surface of the laparoscope ultrasonic probe, and the problem that the probe cannot be sleeved due to too small sleeve opening is avoided. The couplant bag is soft in texture, can be completely attached to the surface of a hardened liver, has the cross section thickness of about 4mm and the widest part of about 1.2cm, and can deform, so that an ultrasonic probe sleeved with a probe sleeve can conveniently enter and exit a trocar hole of 1.2 cm.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims

1. An ultrasonic probe sleeve for liver cirrhosis laparoscopy is characterized by comprising a cylindrical capsule cavity with an opening at one end and a flexible water sac arranged on one side outside the capsule cavity, wherein an ultrasonic couplant is filled in the capsule cavity; the common surface of the flexible water sac and the sac cavity can cover the crystal surface at one side of the ultrasonic probe.

2. The laparoscopic ultrasound probe sleeve of claim 1, wherein said flexible water bladder is filled with water or an ultrasound couplant.

3. The laparoscopic ultrasound probe sleeve of claim 1, wherein said flexible water bladder is at least 0.1cm from the closed end of the bladder cavity.

4. The laparoscopic ultrasound probe sleeve of claim 1, wherein said ultrasound probe sleeve has a widest point not exceeding an inner diameter of the trocar bore.

5. The laparoscopic ultrasound probe sleeve of claim 1, wherein said pocket opening has an end edge curled outwardly.

6. The laparoscopic ultrasound probe sleeve of claim 1, wherein said common face of said capsule cavity and flexible water bladder is 2cm x 1 cm.

7. The laparoscopic ultrasound probe sleeve of claim 1 or 6, wherein said ultrasound couplant within said capsule cavity covers at least the common face of the capsule cavity and the flexible water bladder.

8. The laparoscopic ultrasound probe sleeve of any of claims 1 to 6, wherein said flexible water bladder is integrally formed with the bladder cavity.

9. The laparoscopic ultrasound probe sleeve of any one of claims 1 to 6, wherein said ultrasound probe sleeve is of latex material.