CN217408865U

CN217408865U - Endoscope catheter with improved structure

Info

Publication number: CN217408865U
Application number: CN202221022941.1U
Authority: CN
Inventors: 严立展; 陈维维; 周溢波
Original assignee: Hantech Medical Device Co ltd
Current assignee: Hantech Medical Device Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-13
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses an improved structure's chamber mirror pipe, including outer pipe, and insert the interior pipe in the outer pipe, the hardness of outer pipe is greater than the hardness of interior pipe, the inside ring shape of outer pipe is provided with many elastic tubes, the upper end of interior pipe is provided with outer lane part, the elastic tube contacts the outer wall of interior pipe, outer lane part is spacing in the top of elastic tube; the upper end of the outer catheter is provided with a first outer ring part, the lower end of the inner catheter extends to the outside of the outer catheter, the outer catheter penetrates through the incision when an endoscope is made, the first outer ring part is limited on the surface of skin, and the lower end of the inner catheter penetrates through the outer catheter and then enters into the abdominal cavity; the device can absorb the pressure caused by the movement of the surgical instrument, avoid causing the blood seepage of the incision and also facilitate the negative pressure absorption of the blood seepage.

Description

Endoscope catheter with improved structure

Technical Field

The utility model relates to an improved endoscope catheter.

Background

When an abdominal cavity minimally invasive surgery is carried out, a minimally invasive incision needs to be formed in the position of an abdomen, and a surgical instrument enters the abdominal cavity through the incision to be operated.

Therefore, the endoscope catheter with the improved structure is designed, which can absorb the pressure caused by the movement of the surgical instrument, avoid the blood seepage of the incision and facilitate the negative pressure blood suction.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a structural improvement's endoscopic catheter that can absorb the pressure that causes when surgical instruments removes, avoid causing incision oozing blood, can also make things convenient for the negative pressure to absorb oozing blood simultaneously.

In order to solve the above problem, the utility model adopts the following technical scheme:

an endoscope catheter with an improved structure comprises an outer catheter and an inner catheter inserted into the outer catheter, wherein the hardness of the outer catheter is greater than that of the inner catheter, a plurality of elastic tubes are annularly arranged inside the outer catheter, the upper end of the inner catheter is provided with an outer ring part, the elastic tubes contact the outer wall of the inner catheter, and the outer ring part is limited at the top of the elastic tubes; the upper end of the outer catheter is provided with a first outer ring part, the lower end of the inner catheter extends to the outside of the outer catheter, the outer catheter penetrates through the incision when an endoscope is used, the first outer ring part is limited on the surface of skin, and the lower end of the inner catheter penetrates through the outer catheter and then enters into the abdominal cavity.

Preferably, an annular groove is arranged at the outer wall of the outer catheter, and a tourniquet for hemostasis is arranged in the annular groove.

The tourniquet can absorb blood exuded from the incision.

Preferably, an inner ring is arranged at a position close to the lower end of the inner conduit, a through hole for passing a surgical instrument is arranged at the axis of the inner ring, and the thickness of the inner ring is gradually reduced towards the through hole.

The inner ring is arranged to position the surgical instrument.

Preferably, the resilient tube and the outer conduit are of unitary construction.

Preferably, the inner guide tube is machined at its outer lower end to form a tapered lead-in portion.

The tapered lead-in portion facilitates the passage of the inner conduit down through the outer conduit.

The mode of using this device to carry out chamber mirror operation is as follows:

firstly, an outer catheter is sterilized and then inserted into an operation incision, and then the outer catheter is inserted; then the surgical instrument enters the abdominal cavity through the inner catheter to carry out minimally invasive surgery operation; during operation, the elastic tube penetrates through the negative pressure device to absorb body fluid generated in the operation process, and a clear operation visual field is provided.

The utility model has the advantages that: the device adopts the matching form of the outer catheter and the inner catheter, the length of the inner catheter can be selected according to the operation position and the thickness of the fat layer of a patient, so that the inner catheter can penetrate through body tissues to enter the abdominal cavity, and meanwhile, the visceral organs of the patient cannot be damaged; the operation instrument is operated in the abdominal cavity after passing through the inner catheter, and the operation action of the operation instrument is absorbed through the elastic tube, so that the damage to the incision is reduced, and the blood seepage caused by the stimulation of the incision is avoided. The device has simple structure, is convenient for operation work and is suitable for popularization and use.

Drawings

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

Fig. 1 is a half sectional view of the present invention;

fig. 2 is a top view of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 and 2, a structurally improved endoscopic catheter includes an outer catheter 1, and an inner catheter 2 inserted into the outer catheter 1, wherein the outer catheter 1 has a hardness greater than that of the inner catheter 2, the outer catheter 2 needs to be structurally stable to facilitate the passage of the inner catheter 2, and the inner catheter 2 is used for passing a surgical instrument and is elastically energy-absorbing with the movement of the surgical instrument, so that the hardness is less than that of the outer catheter 1. A plurality of elastic tubes 3 are annularly arranged inside the outer guide tube 1, an outer ring part 21 is arranged at the upper end of the inner guide tube 2, the elastic tubes 3 are contacted with the outer wall of the inner guide tube 2, and the outer ring part 21 is limited at the top of the elastic tubes 3; the upper end of the outer catheter 1 is provided with a first outer ring part 11, the lower end of the inner catheter 2 extends to the outside of the outer catheter 1, the outer catheter penetrates through an incision when an endoscope is used, the first outer ring part 11 is limited on the surface of skin, and the lower end of the inner catheter 2 penetrates through the outer catheter and then enters the abdominal cavity.

In a preferred embodiment of the present invention, an annular groove 121 is disposed on the outer wall of the outer catheter 1, and a tourniquet 131 for hemostasis is disposed in the annular groove 121.

The tourniquet can absorb blood exuded from the incision.

In a preferred embodiment of the present invention, an inner ring 221 is disposed at a position close to the lower end of the inner tube 2, a through hole 222 for passing a surgical instrument is disposed at the axis of the inner ring 221, and the thickness of the inner ring 221 is gradually reduced toward the through hole 222.

The inner ring is arranged to position the surgical instrument.

In a preferred embodiment of the present invention, the elastic tube 3 and the outer tube 1 are formed as an integral structure.

In a preferred embodiment of the present invention, the outer lower end of the inner guide tube 2 is formed with a tapered guide portion 223.

The tapered lead-in facilitates passing the inner conduit down through the outer conduit.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a construction improvement's laparoscopic catheter which characterized in that: the outer guide pipe is annularly provided with a plurality of elastic pipes inside, the upper end of the inner guide pipe is provided with an outer ring part, the elastic pipes contact the outer wall of the inner guide pipe, and the outer ring part is limited at the top of the elastic pipes; the upper end of the outer catheter is provided with a first outer ring part, the lower end of the inner catheter extends to the outside of the outer catheter, the outer catheter penetrates through the incision when an endoscope is used, the first outer ring part is limited on the surface of skin, and the lower end of the inner catheter penetrates through the outer catheter and then enters into the abdominal cavity.

2. The endoscopic catheter with improved structure as defined in claim 1, wherein: an annular groove is arranged on the outer wall of the outer catheter, and a tourniquet for hemostasis is arranged in the annular groove.

3. The endoscopic catheter with improved structure as defined in claim 1, wherein: an inner ring is arranged at the position, close to the lower end, of the inner guide pipe, a through hole for passing through a surgical instrument is formed in the axis of the inner ring, and the thickness of the inner ring is gradually reduced towards the direction of the through hole.

4. The endoscopic catheter with improved structure as defined in claim 1, wherein: the elastic tube and the outer catheter are of an integrated structure.

5. The endoscopic catheter with improved structure as defined in claim 1, wherein: the outer lower end of the inner conduit is processed to form a conical leading-in part.