Anti-infection device for pancreatic in-vitro lithotripsy

Abstract

The invention belongs to the technical field of medical instruments, and discloses an anti-infection device for pancreatic in-vitro lithotripsy, which comprises a conducting layer, a baffle ring and a connecting ring, the center of the bottom surface of the conducting layer is flush with the bottom surface of the connecting ring, both the bottom surface of the conducting layer and the bottom surface of the connecting ring have viscidity, the conducting layer is positioned in the baffle ring, and the conducting layer and the baffle ring form a storage pool for accommodating a coupling agent; a miniature cavity for allowing a coupling agent to flow is formed in the baffle ring, an outlet communicated with the two ends of the miniature cavity is formed in the inner wall of the baffle ring and used for allowing the coupling agent to flow out of the miniature cavity, and an inlet communicated with the middle of the miniature cavity is formed in the inner wall of the baffle ring and used for allowing the coupling agent to flow into the miniature cavity. The conducting layer and the baffle ring play a role in isolation, limit the position of the coupling agent and prevent the coupling agent from flowing to a non-treatment part, and the coupling agent can be prevented from gathering on one side and is more uniformly distributed under the action of the micro cavity; neither the balloon head nor the coupling agent is in direct contact with the skin of a patient, so that iatrogenic infection is avoided fundamentally.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an anti-infection device for pancreas extracorporeal lithotripsy. BACKGROUND

[0002] Pancreas extracorporeal lithotripsy is a non-invasive treatment method for crushing stones in the pancreatic duct by extracorporeal shock wave lithotripsy (ESWL), which is suitable for patients with large stones, special location or endoscopic stone removal failure. The process mainly uses the balloon head of the lithotripsy instrument to contact the skin of the treatment site of the patient, releases extracorporeal shock waves, and crushes the stones in the body to be discharged outside the body. At present, when performing pancreas extracorporeal lithotripsy, the patient needs to adopt a lateral position, align the impact balloon head, and at the same time, a layer of coupling agent needs to be applied on the skin of the patient to better conduct sound; however, in actual clinical treatment, due to the lateral position of the patient, the coupling agent applied on the skin of the patient will flow to the side with lower body position under the action of gravity and the balloon head, so that the use effect of the coupling agent is not good, and after the treatment is completed, a large area of the skin is covered with coupling agent, which causes discomfort to the patient and needs to be cleaned; and during the extracorporeal lithotripsy treatment, the skin of the patient is often knocked and broken, causing slight bleeding, and after the treatment is completed, the medical staff usually uses alcohol to simply disinfect the balloon head, which is easy to cause nosocomial infection; therefore, at present, an anti-infection device is urgently needed to solve the problems of easy flow of coupling agent and easy infection during clinical treatment. SUMMARY

[0003] The present application aims to provide an anti-infection device for pancreas extracorporeal lithotripsy to solve the problems of easy flow of coupling agent and easy infection during pancreas extracorporeal lithotripsy clinical treatment at present.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] An anti-infection device for pancreas extracorporeal lithotripsy, comprising a conductive layer, a blocking ring and a connecting ring, the outer circle of the bottom surface of the conductive layer and the blocking ring are arranged on the top surface of the connecting ring, the center of the bottom surface of the conductive layer is flush with the bottom surface of the connecting ring, the bottom surface of the conductive layer and the bottom surface of the connecting ring are both adhesive, the conductive layer is located in the blocking ring, and the two form a storage pool for accommodating the coupling agent; a micro-cavity for the flow of the coupling agent is formed in the blocking ring, an outlet is formed in the inner wall of the blocking ring and communicates with both ends of the micro-cavity, the outlet is outside the micro-cavity for the outflow of the coupling agent, an inlet is formed in the inner wall of the blocking ring and communicates with the middle part of the micro-cavity, and the inlet is used for the inflow of the coupling agent into the micro-cavity.

[0006] Further, the conductive layer is made of hydrogel material, the blocking ring is made of low-sensitivity acrylic ester pressure-sensitive adhesive, and the connecting ring is made of medical polyethylene film.

[0007] Further, the conducting layer and the blocking ring are integrated on the connecting ring, and the three are integrally formed.

[0008] Further, the blocking ring is 2-4mm higher than the top surface of the conducting layer, and the cross-sectional shape of the blocking ring is an arc shape with the top bending towards the center of the conducting layer.

[0009] Further, the top surface of the conducting layer is provided with an indication mark, and the indication mark is aligned with the inlet in the direction.

[0010] Further, the conducting layer and the bottom surface of the connecting ring are provided with a protective layer, the protective layer is a plastic film, the surface of the protective layer is treated with silicon oil, the protective layer is used for protecting the adhesive surface of the conducting layer and the connecting ring, and the edge of the protective layer is provided with a pulling part.

[0011] The principle and beneficial effects of the technical scheme are as follows:

[0012] The anti-infection device for pancreas extracorporeal lithotripsy provided by the application is attached to the skin of a patient through a connecting ring and a conducting layer, a coupling agent is blocked on the conducting layer through a blocking ring, the coupling agent is prevented from flowing to a non-treatment site, the coupling agent on the conducting layer flows to a side with a lower body position, enters a micro cavity through an inlet, is extruded by a balloon head, flows out from an outlet, and is re-discharged to a side with a higher body position, so as to be circulated, so that the coupling agent is prevented from gathering on one side of the conducting layer and affecting the conducting effect; the balloon head directly contacts the coupling agent on the conducting layer and the top surface of the conducting layer, and does not directly contact the skin of the patient, and the skin of the patient also does not directly contact the coupling agent, after treatment, the conducting layer can be removed and discarded, even if there is slight bleeding, the balloon head will not be contaminated, so that iatrogenic infection is fundamentally avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the anti-infection device for pancreas extracorporeal lithotripsy;

[0014] Figure 2 It is an assembly structural schematic view of the anti-infection device for pancreas extracorporeal lithotripsy;

[0015] Figure 3 It is a partial sectional view of the anti-infection device for pancreas extracorporeal lithotripsy;

[0016] Figure 4 It is a half-sectional top view of the blocking ring in the anti-infection device for pancreas extracorporeal lithotripsy;

[0017] The names of corresponding marks in the drawings are as follows: 1, conducting layer; 101, indication mark; 2, blocking ring; 201, micro cavity; 202, inlet; 203, outlet; 3, connecting ring; 301, protective layer; 302, pulling part. DETAILED DESCRIPTION

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0019] like Figures 1-4 As shown, an infection prevention device for extracorporeal shock wave lithotripsy of the pancreas includes a conductive layer 1, a retaining ring 2, and a connecting ring 3, all three being made of flexible material that can completely conform to the patient's skin. The outer ring of the bottom surface of the conductive layer 1 and the retaining ring 2 are both located on the top surface of the connecting ring 3. The connecting ring 3 provides auxiliary support for the conductive layer 1 and the retaining ring 2, increasing their strength. The center of the bottom surface of the conductive layer 1 is flush with the bottom surface of the connecting ring 3. Both the bottom surfaces of the conductive layer 1 and the bottom surface of the connecting ring 3 are adhesive, allowing the device to be adhered to the patient's skin through the adhesive surfaces. The conductive layer 1 is located inside the retaining ring 2. A storage pool is formed to hold the coupling agent; a micro-cavity 201 for the coupling agent to flow is opened inside the retaining ring 2, and an outlet 203 communicating with both ends of the micro-cavity 201 is opened on the inner wall of the retaining ring 2. The outlet 203 is used for the coupling agent to flow out of the micro-cavity 201. An inlet 202 communicating with the middle of the micro-cavity 201 is opened on the inner wall of the retaining ring 2. The inlet 202 is used for the coupling agent to flow into the micro-cavity 201. The size of the inlet 202 is larger than the size of the outlet 203, so that the coupling agent can enter the inlet 202 more easily.

[0020] This device is a sterile, disposable consumable. During use, the patient assumes a lateral decubitus position. Medical staff remove the device from its sterile packaging and attach it to the patient's skin over the treatment area via the adhesive surfaces of the conductive layer 1 and connecting ring 3. The inlet 202 is positioned on the lower side of the patient's lateral decubitus position. The conductive layer 1 and connecting ring 3 are highly flexible and can completely conform to the patient's skin. At this time, the retaining ring 2 also deforms accordingly, adhering to the patient's skin along with the conductive layer 1, and surrounding the edges of the conductive layer 1 to form a storage pool capable of holding a certain amount of coupling agent. After attachment, medical staff only need to remove the coupling agent... The coupling agent is squeezed into the storage pool formed by the conductive layer 1 and the retaining ring 2, replacing the traditional method of direct application to the patient's skin. The retaining ring 2 effectively prevents the coupling agent from flowing to non-treatment areas. Then, the lithotripsy balloon head is attached to the top surface of the conductive layer 1, at which point the coupling agent also contacts the surface of the balloon head. The energy emitted from the balloon head is transmitted to the patient's body through the coupling agent and the conductive layer 1, thereby breaking up the target stone. During treatment, because the patient adopts a lateral decubitus position, although the coupling agent will not flow out of the conductive layer 1 due to the retaining ring 2, it will still accumulate on the lower side, leading to... The higher side has less coupling agent. At this point, the coupling agent accumulated at the lower position enters the microcavity 201 through inlet 202. Due to the slight vibration of the balloon head during lithotripsy, the accumulated coupling agent is continuously compressed and forced into the microcavity 201. Since the microcavity 201 has a narrow inner diameter and the coupling agent is gel-like, the downward flow of gravity cannot push the accumulated coupling agent upwards. Therefore, it is continuously compressed and flows to the outlet 203 at the other end of the microcavity 201, where it is discharged and re-covers the higher side of the body, thus... The circulation process ensures that the coupling agent within the conductive layer 1 is distributed as evenly as possible, facilitating better sound transmission and improving treatment effectiveness. After treatment, medical staff only need to pull the connecting ring 3 to detach it from the patient's skin along with the conductive layer 1. Throughout the treatment, the patient's skin does not come into contact with the coupling agent, preventing contamination of the patient's clothing and the treatment bed sheets, thus eliminating the need for subsequent cleaning. Furthermore, the balloon head of the extracorporeal shock wave lithotripter does not directly contact the patient's skin, so even if the patient experiences skin bleeding, the balloon head will not be contaminated, eliminating the need for post-treatment disinfection and fundamentally preventing iatrogenic contamination, thereby improving treatment safety.

[0021] In this embodiment, the conductive layer 1 is made of hydrogel, the retaining ring 2 is made of low-sensitivity acrylic pressure-sensitive adhesive, and the connecting ring 3 is made of medical polyethylene film. The hydrogel conductive layer 1 can adhere well to the patient's skin and has good sound transmission performance, without affecting the treatment effect; the low-sensitivity acrylic pressure-sensitive adhesive retaining ring 2 has good elasticity and a certain thickness, which can form an effective barrier while adhering to the patient's skin, preventing coupling agent leakage; the medical polyethylene film connecting ring 3 is thin and flexible, integrating the conductive layer 1 and the retaining ring 2, increasing structural strength without affecting the fit of the device.

[0022] In this embodiment, the conductive layer 1 and the retaining ring 2 are both integrated onto the connecting ring 3, and the three are integrally formed. This integral forming design avoids gaps that could lead to coupling agent leakage.

[0023] In this embodiment, the retaining ring 2 extends 2-4 mm above the top surface of the conductive layer 1, and the cross-sectional shape of the retaining ring 2 is an arc shape with the top curving towards the center of the conductive layer 1. The storage pool formed by extending 2-4 mm above the top surface of the conductive layer 1 can hold a sufficient amount of coupling agent, facilitating treatment; at the same time, the top of the retaining ring 2 curving towards the center of the conductive layer 1 can better block the coupling agent and prevent the coupling agent from flowing out of the device along the inner wall of the retaining ring 2.

[0024] In this embodiment, an indicator 101 is provided on the top surface of the conductive layer 1, and the direction indicated by the indicator 101 is aligned with the inlet 202. The indicator 101 enables medical personnel to more accurately apply the device to the patient's skin, ensuring that the inlet 202 is located on the lower side of the patient's body.

[0025] In this embodiment, a protective layer 301 is provided on the bottom surface of the conductive layer 1 and the connecting ring 3. The protective layer 301 is a plastic film with a silicone oil treatment on its surface, used to protect the adhesive surfaces of the conductive layer 1 and the connecting ring 3. A pull portion 302 is provided at the edge of the protective layer 301. The silicone oil-treated protective layer 301 can avoid affecting the adhesion of the adhesive surfaces of the conductive layer 1 and the connecting ring 3. In use, the protective layer 301 can be easily peeled off by pinching the pull portion 302, thereby achieving bonding.

[0026] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for preventing infection in pancreas extracorporeal lithotripsy, characterized in that: Including conducting layer (1), baffle ring (2) and connecting ring (3), the bottom surface outer ring of the conducting layer (1) and the baffle ring (2) are arranged on the top surface of the connecting ring (3), the bottom surface center of the conducting layer (1) is flush with the bottom surface of the connecting ring (3), the bottom surface of the conducting layer (1) and the bottom surface of the connecting ring (3) are both adhesive, the conducting layer (1) is located in the baffle ring (2), and both form a storage pool for accommodating coupling agent;The baffle ring (2) is provided with a microcavity (201) for the flow of coupling agent, the inner wall of the baffle ring (2) is provided with an outlet (203) communicated with both ends of the microcavity (201), the outlet (203) is used for the microcavity (201) outside the microcavity (201) for the flow of coupling agent, the inner wall of the baffle ring (2) is provided with an inlet (202) communicated with the middle part of the microcavity (201), and the inlet (202) is used for the flow of coupling agent into the microcavity (201).

2. The anti-infection device for pancreas extracorporeal lithotripsy according to claim 1, characterized in that: The conducting layer (1) is made of hydrogel material, the baffle ring (2) is made of low sensitivity acrylic pressure sensitive adhesive, and the connecting ring (3) is made of medical polyethylene film.

3. The anti-infection device for pancreas extracorporeal lithotripsy according to claim 1, characterized in that: The conducting layer (1) and the baffle ring (2) are integrated on the connecting ring (3), and the three are integrally formed.

4. The anti-infection device for pancreas extracorporeal lithotripsy according to claim 1, characterized in that: The baffle ring (2) is 2-4mm higher than the top surface of the conducting layer (1), and the cross section of the baffle ring (2) is arc-shaped, which is curved towards the center of the conducting layer (1).

5. The anti-infective device according to claim 1, wherein: The top surface of the conducting layer (1) is provided with an indication mark (101), and the indication direction of the indication mark (101) is aligned with the inlet (202).

6. The anti-infective device according to claim 1, wherein: The bottom surface of the conducting layer (1) and the connecting ring (3) is provided with a protective layer (301), the protective layer (301) is a plastic film, the surface of which is treated with silicon oil, which is used to protect the adhesive surface of the conducting layer (1) and the connecting ring (3), and the edge of the protective layer (301) is provided with a pulling part (302).

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