CN111437496A

CN111437496A - Liquid medicine sprinkler in scope pincers way

Info

Publication number: CN111437496A
Application number: CN201910038717.8A
Authority: CN
Inventors: 沈伟; 张冠石
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-07-24
Also published as: WO2020147743A1

Abstract

The invention relates to a liquid medicine spraying device in an endoscope channel, which comprises a handle, an outer pipe, a middle pipe, an inner pipe and a protection device, wherein the far end of the outer pipe is fixedly connected with the handle; the protection device is sleeved between the inner pipe and the outer pipe, and the near end of the protection device is contacted with the far end of the middle pipe; and the near-end of the inner pipe is provided with a sprinkler head. The spraying device is simple to operate, the inner tube, the middle tube and the protection device can be pushed out simultaneously only by operating the handle, the protection device and the protection film are covered outside the spraying head of the inner tube, liquid medicine is protected from polluting an endoscope lens, the spraying operation is carried out on a cavity of a patient, and the inner tube, the middle tube and the protection device can return to the outer tube simultaneously after the spraying device is used, so that the endoscopic operation is not influenced.

Description

Liquid medicine sprinkler in scope pincers way

Technical Field

The invention relates to the technical field of medical instruments, in particular to a liquid medicine spraying device in an endoscope channel.

Background

In endoscopic surgery, due to the existence of various body fluids and mucus in the natural cavity of a human body, the visual field of the endoscope is influenced, and the operation difficulty is improved. In order to clear the visual field of the endoscopic surgery, accurately check the focal tissues inside the human body and accurately perform the endoscopic surgery operation, a spraying device and other treatment instruments matched with the endoscope are needed. The instrument is widely applied to endoscopic clinics and operations due to the characteristics of convenient operation, low price and the like.

Because the clinical characteristics of pathological change tissue in patient's chamber way are numerous and complicated, conventional sprinkler perhaps causes the pollution and shelters from the scope camera lens when spraying the liquid medicine after getting into the body cavity through scope pincers way, has influenced and has sprayed or wash the effect, causes adverse effect and influences the operation progress for the scope operation, has increased scope clinical operation's the operation degree of difficulty.

Therefore, it is desirable to provide a liquid medicine spraying device in an endoscope channel, which is provided with a protection device and can protect an endoscope lens from being affected by sprayed liquid during spraying.

Disclosure of Invention

In view of the above, the present invention is directed to a chemical liquid spraying device in an endoscope channel, which uses a shape memory alloy as a protection device to protect a spraying head of an inner tube, so as to ensure that a lens of an endoscope is not affected.

In order to solve the technical problems, the invention adopts the following technical scheme:

a liquid medicine spraying device in an endoscope channel comprises a handle, an outer pipe, a middle pipe, an inner pipe and a protection device, wherein the far end of the outer pipe is fixedly connected with the handle, the inner pipe is sleeved in the middle pipe, the middle pipe is sleeved in the outer pipe, a handle propeller is arranged in the handle, the far end of the inner pipe and the far end of the middle pipe are fixedly connected with the handle propeller, and the handle propeller can push the middle pipe and the inner pipe out simultaneously; the protection device is sleeved between the inner pipe and the outer pipe, the near end of the protection device is contacted with the far end of the middle pipe, and the protection device can be pushed out when the middle pipe is pushed out; and the near-end of the inner pipe is provided with a sprinkler head. The inner tube must be guaranteed to be unobstructed and liquid-tight, and the sprinkler head must be guaranteed to be able to successfully spray liquid.

Preferably, the inner pipe is provided with an inner pipe bulge, and the protection device is fixedly connected with the inner pipe bulge. The protector and the inner tube protrusion may be fixed using an adhesive.

Preferably, the material of the protection device is shape memory alloy. The protector is initially within the outer tube and may be gradually expanded after leaving the mouth of the outer tube.

Preferably, the protection device is a nickel titanium memory alloy wire braided structure, and the diameter of the nickel titanium memory alloy wire is not more than 0.5 mm.

Preferably, the inner surface or the outer surface of the protection device is covered with a protection film. The protective film is used for protecting the liquid medicine from being splashed onto the endoscope lens.

Preferably, the protective film is a flexible high polymer material of silica gel, and the thickness of the protective film is not more than 0.3 mm. The silica gel has the characteristics of toughness and transparency, ensures that the protective film and the protective device deform simultaneously, and cannot shield the sight to influence the endoscopic surgery.

Preferably, the proximal end of the protection device is unfolded in an umbrella shape and the maximum diameter of the protection device when unfolded is not less than 10 mm.

Preferably, the inner tube has an internal thread on its proximal end adjacent to the inner wall of the sprinkler head. The internal thread can form a spiral path, and the liquid medicine rotates and passes through the spiral path to form a shearing effect with the spraying head so as to generate a spraying effect.

Preferably, the outer diameter of the outer tube does not exceed 2.6 mm. The outer surface of the outer tube is smooth, the outer diameter of the outer tube is smaller than the minimum inner diameter of the endoscope channel by 2.8mm, and the spraying device can freely enter and leave the endoscope channel.

The invention has the following beneficial effects:

by adopting the technical scheme, the spraying device is simple to operate, the inner tube, the middle tube and the protection device can be pushed out simultaneously only by operating the handle, the protection device and the protection film are covered outside the spraying head of the inner tube, so that the protection liquid medicine can not pollute an endoscope lens, the spraying operation can be carried out on the cavity of a patient, and the inner tube, the middle tube and the protection device can return to the outer tube simultaneously after being used, so that the endoscopic operation is not influenced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to make the technical means implementable in accordance with the contents of the description, and to make the above and other objects, technical features, and advantages of the present invention more comprehensible, one or more preferred embodiments are described below in detail with reference to the accompanying drawings.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic view showing an unopened structure of a protective device of a medical fluid spray device in an endoscopic forceps channel according to the present invention.

Figure 2 shows a schematic view of the unopened internal structure of a protective device of a medical fluid spraying device in an endoscopic forceps channel according to the present invention.

Figure 3 shows a schematic view of the open configuration of the protective means of a medical fluid spraying device in an endoscopic forceps channel according to the invention.

Figure 4 shows a schematic view of the opened internal structure of the protective device of the medical fluid spraying device in the endoscopic forceps channel according to the present invention.

Description of the main reference numerals:

1-outer pipe, 2-middle pipe, 3-inner pipe, 31-inner pipe bulge, 32-sprinkler head, 33-internal thread, 4-protection device, 5-handle and 51-handle propeller.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Spatially relative terms, such as "below," "lower," "upper," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the object in use or operation in addition to the orientation depicted in the figures. For example, if the items in the figures are turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" can encompass both an orientation of below and above. The article may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

As shown in fig. 1 to 4, a liquid medicine spraying device in an endoscope channel comprises a handle 5, an outer tube 1, a middle tube 2, an inner tube 3 and a protection device 4, wherein the distal end of the outer tube 1 is fixedly connected with the handle 5, and the outer diameter of the outer tube 1 is not more than 2.6 mm. The outer surface of the outer tube 1 is smooth, the outer diameter of the outer tube is smaller than the minimum inner diameter of the endoscope channel by 2.8mm, and the spraying device can freely enter and leave the endoscope channel.

The inner tube 3 is sleeved in the middle tube 2, the middle tube 2 is sleeved in the outer tube 1, the handle propeller 51 is arranged in the handle 5, the far end of the inner tube 3 and the far end of the middle tube 2 are fixedly connected with the handle propeller 51, and the handle propeller 51 can push the middle tube 2 and the inner tube 3 out simultaneously.

The protection device 4 is sleeved between the inner pipe 3 and the outer pipe 1, the near end of the protection device 4 is contacted with the far end of the middle pipe 2, and the protection device 4 can be pushed out when the middle pipe 2 is pushed out; the proximal end of the inner tube 3 is provided with a sprinkler 32. The inner tube 3 must be kept clear and liquid-tight and the spray head 32 must be kept capable of successfully spraying the liquid. The inner wall of the proximal end of the inner tube 3 near the sprinkler head 32 is provided with an internal thread 33. The internal threads 33 may form a helical path through which the liquid medicine rotates to create a shearing effect with the spray head 32 to create a spraying effect.

The inner pipe 3 is provided with an inner pipe bulge 31, and the protection device 4 is fixedly connected with the inner pipe bulge 31. The protector 4 and the inner tube protrusion 31 may be fixed using an adhesive.

The protection device 4 is made of shape memory alloy. The protection device 4 should have a certain hardness and a shape memory function. The protection means 4 may initially be inside the outer tube 1 and may gradually open after leaving the mouth of the outer tube 1. The proximal end of the protection device 4 is unfolded to be umbrella-shaped, and the maximum unfolded diameter of the protection device 4 is not less than 10 mm.

The protection device 4 is preferably of a nickel-titanium memory alloy wire braided structure, and the diameter of the nickel-titanium memory alloy wire is not more than 0.5 mm.

The inner surface or the outer surface of the protection device 4 is covered with a protection film. The protective film is used for protecting the liquid medicine from being splashed onto the endoscope lens. The protective film is flexible high polymer material, preferably silica gel, and the thickness of protective film is no more than 0.3 mm. The silica gel has the characteristics of toughness and transparency, ensures that the protective film and the protection device 4 deform at the same time, and cannot shield the sight to influence the endoscopic surgery.

In use, as shown in figure 2, before the protector 4 is opened, the protector 4, the inner tube 3 and the middle tube 2 are all inside the outer tube 1. When the spraying device needs to work, as shown in fig. 4, the handle pusher 51 on the handle 5 is operated to push the middle tube 2 and the inner tube 3 out simultaneously, and the protection device 4 is pushed out simultaneously because the protection device 4 is contacted with the middle tube 2 and the protection device 4 is fixedly connected with the inner tube protrusion 31 on the inner tube 3. When the protection device 4 leaves the mouth of the outer tube 1, the near end of the protection device 4 gradually opens to form an umbrella shape, at the moment, the spraying head 32 of the inner tube 3 also leaves the mouth of the outer tube 1 at the same time, the liquid medicine in the inner tube 3 can form a spiral path through the internal thread 33, the liquid medicine rotates and passes through the spiral path, and forms a shearing effect with the spraying head 32, so that a spraying effect is generated, and the spraying operation is performed on the cavity of the patient. When the spraying operation is completed, the handle pusher 51 of the handle 5 is operated again to withdraw the inner tube 3 and the middle tube 2 at the same time, and since the protector 4 is fixedly connected to the inner tube protrusion 31 of the inner tube 3, the protector 4 can be withdrawn together with the inner tube 3, thereby withdrawing the protector 4 and the inner tube 3 together into the outer tube 1.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. Any simple modifications, equivalent changes and modifications made to the above exemplary embodiments shall fall within the scope of the present invention.

Claims

1. A liquid medicine spraying device in an endoscope channel is characterized by comprising a handle (5), an outer pipe (1), a middle pipe (2), an inner pipe (3) and a protection device (4), wherein the far end of the outer pipe (1) is fixedly connected with the handle (5), the inner pipe (3) is sleeved in the middle pipe (2), the middle pipe (2) is sleeved in the outer pipe (1), a handle propeller (51) is arranged in the handle (5), and the far end of the inner pipe (3) and the far end of the middle pipe (2) are fixedly connected with the handle propeller (51);

the protection device (4) is sleeved between the inner pipe (3) and the outer pipe (1), and the near end of the protection device (4) is contacted with the far end of the middle pipe (2);

and a spraying head (32) is arranged at the near-end of the inner pipe (3).

2. A liquid medicine spraying device in an endoscopic forceps channel according to claim 1, wherein the inner tube (3) is provided with an inner tube protrusion (31), and the protection device (4) is fixedly connected with the inner tube protrusion (31).

3. A liquid medicine spraying device in an endoscopic forceps channel as claimed in claim 1, characterized in that the protecting means (4) is made of shape memory alloy.

4. A liquid medicine spraying device in an endoscopic forceps channel according to claim 3, characterized in that the protection device (4) is a braided structure of nitinol wires, the diameter of which is not more than 0.5 mm.

5. A medical liquid spraying device in an endoscopic forceps channel as claimed in claim 4, wherein the inner surface or the outer surface of the protection means (4) is covered with a protective film.

6. The device for spraying a liquid medicine into an endoscopic forceps channel as claimed in claim 5, wherein the protective film is made of a flexible polymer material, and the thickness of the protective film is not more than 0.3 mm.

7. A medical liquid spraying device in an endoscopic forceps channel as claimed in claim 6, characterized in that the proximal end of the protection device (4) is deployed in the shape of an umbrella and the maximum diameter of the deployed protection device (4) is not less than 10 mm.

8. A liquid medicine spraying device in an endoscopic forceps channel as claimed in claim 1, characterized in that the proximal end of the inner tube (3) is provided with an internal thread (33) on the inner wall near the spraying head (32).

9. A medical liquid spraying device in an endoscopic forceps channel as claimed in claim 1, characterized in that the outer diameter of the outer tube (1) does not exceed 2.6 mm.