CN220309177U

CN220309177U - Medical water sword

Info

Publication number: CN220309177U
Application number: CN202321342250.4U
Authority: CN
Inventors: 孙光宇; 吴衍; 包全
Original assignee: Huizhou Hydro Caresys Medical Co ltd
Current assignee: Huizhou Hydro Caresys Medical Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2024-01-09
Anticipated expiration: 2033-05-29

Abstract

The utility model relates to the technical field of medical appliances and discloses a medical water jet scalpel which comprises a shell, a pressure pipe, a nozzle and a return pipe, wherein the shell is provided with an end part, the pressure pipe is arranged on the shell, the nozzle is arranged on the end part of the shell and is communicated with the pressure pipe, the nozzle is provided with a spout, a preset angle is formed between the axial direction of the spout and the axial direction of the pressure pipe, the return pipe is arranged on the shell and is close to the nozzle, and the spout faces the inner wall surface of the return pipe. Based on the structure, the nozzle is arranged at the position of the top angle of the end part of the shell, the target area is easy to reach, the top angle work can be carried out on the target area with complex configuration, the operation difficulty is reduced, dead angles or dead areas are not easy to generate, the cleaning is relatively in place, and moreover, the nozzle is convenient to recycle tissues and waste liquid into the return pipe through negative pressure suction back towards the inner wall surface of the return pipe, so that the operation quality and operation efficiency are improved.

Description

Medical water sword

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a medical water knife.

Background

The medical water jet scalpel is a medical instrument which can impact an operation part to cut tissues by forming high-speed liquid jet, and has the advantages of small wound, less bleeding, high tissue selectivity and the like. The medical water knife is a novel surgical separation technology, has better tissue selectivity, and realizes tissue separation by impacting and cutting biological tissues by high-speed superfine jet water beams formed by jetting physiological saline.

The working area of the medical water knife acting on the biological structure has complex configuration and various uneven shapes such as bulges or grooves. The existing nozzle of the medical water jet scalpel is usually positioned on the side face of the scalpel head, when tissue is removed, the nozzle is difficult to reach a target area, the operation difficulty is increased, dead angles or dead areas are easy to generate, cleaning is not in place, and even secondary damage is caused to a patient.

Disclosure of Invention

The utility model aims to provide a medical water knife which can work at a vertex angle, is not easy to generate dead angles or dead areas and can clean in place.

In order to achieve the above object, the present utility model provides a medical water jet scalpel, comprising:

a housing having an end;

a pressure tube disposed within the housing;

a nozzle disposed at an end of the housing and in communication with the pressure tube, the nozzle having a spout, an axial direction of the spout and an axial direction of the pressure tube forming a predetermined angle therebetween;

and the return pipe is arranged in the shell and close to the nozzle, and the nozzle faces the inner wall surface of the return pipe.

In some embodiments of the present application, an inner wall surface of the return pipe opposite to the nozzle is a first inner wall surface, and a projection of the nozzle along the injection direction is located in a range of the first inner wall surface.

In some embodiments of the present application, the predetermined angle is 0 ° < a <180 °.

In some embodiments of the present application, the side of the return tube remote from the nozzle has a guide portion provided at an end portion of the return tube and extending in a circumferential direction of the return tube, the guide portion being curved toward the nozzle with respect to an axial direction of the return tube for guiding the jet flow toward the return tube.

In some embodiments of the present application, the predetermined angle is 90 ° < a <180 °;

the guide part protrudes from the nozzle in the axial direction of the return pipe.

In some embodiments of the present application, the pressure tube is disposed within the return tube;

or,

the pressure pipe is arranged outside the return pipe and is arranged adjacent to the return pipe.

In some embodiments of the present application, the spout diameter is 0.01mm to 9.5mm.

In some embodiments of the present application, the return tube has an inner diameter of 0.1mm to 49mm and an outer diameter of 0.5mm to 50mm.

In some embodiments of the present application, the pressure tube has an inner diameter of 0.05mm to 28mm and the pressure tube has an outer diameter of 0.1mm to 30mm.

Compared with the prior art, the medical water knife has the beneficial effects that:

the medical water jet provided by the utility model comprises a shell, a pressure pipe, a nozzle and a return pipe, wherein the shell is provided with an end part, the pressure pipe is arranged on the shell, the nozzle is arranged on the end part of the shell and is communicated with the pressure pipe, the nozzle is provided with a spout, a preset angle is formed between the axial direction of the spout and the axial direction of the pressure pipe, the return pipe is arranged on the shell and is close to the nozzle, and the spout faces the inner wall surface of the return pipe. Based on the structure, the nozzle is arranged at the top angle of the end part of the shell, the target area is easy to reach, the top angle work can be carried out on the target area with complex configuration, the operation difficulty is reduced, dead angles or dead areas are not easy to generate, and the cleaning is relatively in place. During operation, jet flow flows through the pressure pipe and then is emitted from the nozzle, the water jet direction is perpendicular to the axial direction of the pressure pipe or forms a certain angle, the biological tissues are damaged by impact, and tissue separation is realized.

Drawings

Fig. 1 is a schematic structural view of a medical water jet scalpel according to embodiment 1 of the present utility model;

fig. 2 is a schematic overall structure of a medical scalpel according to embodiment 1 of the present utility model;

FIG. 3 is a partial schematic view of the region M of FIG. 2 in a radial cross-section of the pressure tube;

FIG. 4 is a schematic partial sectional view of a medical scalpel according to embodiment 2 of the present utility model;

FIG. 5 is a schematic view showing a partial cross section of a medical scalpel according to embodiment 3 of the present utility model;

fig. 6 is a schematic partial sectional view of a medical water jet knife according to embodiment 4 of the present utility model.

In the figure: 1. a housing; 11. a stem portion; 12. a handle; 2. a pressure pipe; 3. a nozzle; 31. a spout; 4. a return pipe; 41. a first inner side; 42. a guide part; 5. a target area.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Example 1

As shown in fig. 1 to 3, an embodiment of the present utility model provides a medical water jet including a housing 1, a pressure tube 2, a nozzle 3, and a return tube 4. The housing 1 includes a stem 11 and a shank 12, the shank 12 being fixedly connected to the stem 11, the stem 11 forming an accommodation space. The pressure tube 2 is arranged in the housing 1, in particular in the receiving space, the axial direction of the pressure tube 2 being arranged parallel to the axial direction of the rod portion 11 for providing a water jet with a certain pressure. Preferably, the inner diameter of the pressure tube 2 is 0.05mm to 28mm and the outer diameter of the pressure tube 2 is 0.1mm to 30mm.

The nozzle 3 is disposed at an end of the rod 11 and protrudes from the end of the rod 11, and the nozzle 3 is in communication with the pressure tube 2, specifically, the nozzle 3 is fitted over the end of the pressure tube 2. The nozzle 3 has a nozzle orifice, the axial direction of which forms a predetermined angle with the axial direction of the pressure tube 2, the predetermined angle being 0 < a <180 °. In this embodiment, the predetermined angle is 90 °.

The return pipe 4 is provided in the housing 1 and protrudes from the end of the stem 11, the return pipe 4 is provided near the nozzle 3, and the spout 31 is directed toward the inner wall surface of the return pipe 4. Preferably, the inner diameter of the return pipe 4 is 0.1mm to 49mm, and the outer diameter of the return pipe 4 is 0.5mm to 50mm.

Based on the structure, the nozzle 3 is arranged at the top angle position at the end part of the shell 1, the target area 5 is easy to reach, the top angle work can be carried out on the target area 5 with complex configuration, the operation difficulty is reduced, dead angles or dead areas are not easy to generate, and the cleaning is relatively in place. During operation, jet flow flows through the pressure pipe 2 and then is emitted from the nozzle 31, the water jet direction is perpendicular to the axial direction of the pressure pipe 2 or forms a certain angle, the impact damages biological tissues, and tissue separation is realized, and because the nozzle 31 faces the inner wall surface of the return pipe 4, tissues and waste liquid are conveniently recycled into the return pipe 4 through negative pressure suction, and the operation quality and operation efficiency are improved.

Alternatively, as shown in fig. 3, in the present embodiment, the inner wall surface of the return pipe 4 on the side opposite to the nozzle 3 is the first inner wall surface 41, and the projection of the nozzle in the injection direction is located within the range of the first inner wall surface. The arrangement is favorable for the reflux of waste liquid and tissues, and is more favorable for the recovery of the waste liquid. Specifically, the side of the return pipe 4 remote from the nozzle 3 has a guide portion 42 provided at an end portion of the return pipe 4 and extending in the circumferential direction of the return pipe 4, the guide portion 42 being curved toward the nozzle 3 with respect to the axial direction of the return pipe 4 for guiding the jet flow toward the return pipe 4. In the present embodiment, the guide 42 is at least partially concavely curved, which is concave in a direction away from the nozzle 3. On this basis, after the jet is discharged from the nozzle 3, the jet carries the separated tissue and is projected to the guide 42, and the jet is guided by the guide 42 to flow toward the downstream side of the return pipe 4, thereby facilitating the return of the waste liquid and the tissue.

Alternatively, as shown in fig. 3, in the present embodiment, the predetermined angle a is 90 °, and the guide 42 is flush with the nozzle 3.

Alternatively, as shown in fig. 3, in the present embodiment, the pressure pipe 2 is disposed outside the return pipe 4 and adjacent to the return pipe 4. Specifically, the side of the return tube 4 close to the pressure tube 2 abuts against the nozzle 3.

Example 2

Referring to fig. 4, this embodiment is different from embodiment 1 in that a predetermined angle 90 ° < a <180 °, a guide portion 42 is provided protruding from the nozzle 3 in the axial direction of the return pipe 4, and the first side surface is an arc surface. In this way, jets of different angles can be formed to facilitate cutting for a particular target area 5. Example 3

Referring to fig. 5, this embodiment differs from embodiment 1 in that the nozzle 3 and the pressure tube 2 are arranged in a return tube 4, the end of the return tube 4 on the side remote from the pressure tube 2 being provided with no curved guide 42, the first side being a straight face. Therefore, the structure arrangement is more compact, the space utilization rate is high, and the backflow of waste liquid is facilitated.

Example 4

Referring to fig. 6, this embodiment is different from embodiment 1 in that the nozzle 3 and the pressure tube 2 are disposed in the return tube 4, the end of the return tube 4 on the side away from the pressure tube 2 is provided with a bent guide 42, a predetermined angle 90 ° < a <180 °, and the guide 42 is provided protruding from the nozzle 3 in the axial direction of the return tube 4.

The working process of the medical water knife provided by the embodiment of the utility model is as follows: the jet flows through the pressure tube 2 to the nozzle 31 to be emitted, and after impacting and separating the tissue, the jet carries the tissue to impact the guide part 42, and the jet is guided by the guide part and then flows back through the negative pressure suction of the return tube 4.

In summary, an embodiment of the present utility model provides a medical water jet scalpel, which is mainly composed of a body, a pressure pipe, a nozzle and a return pipe, wherein the housing has an end, the pressure pipe is disposed on the housing, the nozzle is disposed on the end of the housing and is communicated with the pressure pipe, the nozzle has a spout, a predetermined angle is formed between the axial direction of the spout and the axial direction of the pressure pipe, the return pipe is disposed on the housing and is close to the nozzle, and the spout faces the inner wall surface of the return pipe. Compared with the prior art, the medical water knife has the advantages of capability of working at the top angle, difficult generation of dead angles or dead areas, clean in place and the like.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. A medical water jet scalpel, comprising:

a housing having an end;

a pressure tube disposed within the housing;

2. The medical water jet scalpel according to claim 1, wherein:

the predetermined angle is 0 ° < a <180 °.

3. The medical water jet scalpel according to claim 2, wherein:

the inner wall surface of one side of the return pipe opposite to the nozzle is a first inner side surface, and the projection of the nozzle along the injection direction is positioned in the range of the first inner side surface.

4. A medical water jet blade as defined in claim 3, wherein:

the side of the return pipe, which is far away from the nozzle, is provided with a guide part which is arranged at the end part of the return pipe and extends along the circumferential direction of the return pipe, and the guide part is bent towards the nozzle relative to the axial direction of the return pipe and is used for guiding jet flow towards the return pipe.

5. The medical water jet scalpel according to claim 4, wherein:

the predetermined angle is 90 ° < a <180 °;

6. The medical water jet scalpel according to claim 1, wherein:

the pressure pipe is arranged in the return pipe;

or,

7. The medical water jet scalpel according to claim 1, wherein:

the diameter of the nozzle is 0.01 mm-9.5 mm.

8. The medical water jet scalpel according to claim 1, wherein:

the inner diameter of the reflux pipe is 0.1-49 mm, and the outer diameter of the reflux pipe is 0.5-50 mm.

9. The medical water jet scalpel according to claim 1, wherein:

the inner diameter of the pressure pipe is 0.05 mm-28 mm, and the outer diameter of the pressure pipe is 0.1 mm-30 mm.