Continuous perfusate sheath stent for otoendoscope surgery

Abstract

The utility model relates to a continuous perfusate sheath support for ear endoscope surgery. The device comprises an elastic support body which is integrally columnar, the support body comprises a tubular inner wall and a tubular outer wall, the upper end of the inner wall is connected with the upper end of the outer wall through an annular top wall, the lower end of the inner wall is connected with the lower end of the outer wall through an annular bottom wall, and the inner side of the inner wall is an instrument channel of the support body; a cavity is formed between the inner wall and the outer wall, an infusion tube opening communicated with the cavity is formed in the annular top wall or the edge of the upper end of the outer wall, an infusion tube or an infusion tube connector is arranged on the infusion tube opening, and a plurality of liquid outlet holes which are evenly distributed and communicated with the cavity are formed in the annular bottom wall.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of instruments for ear endoscope surgery, in particular to disclose a kind of ear endoscope surgery continuous perfusion liquid sheath support. BACKGROUND

[0002] Ear endoscope has high-definition, wide-angle, flexible operation and other advantages, can be observed and handled through natural orifice to lesion, is conducive to realizing minimally invasive concept.Especially in deep tissue structure application has more advantages, its wide-angle view can effectively reduce bone grinding amount, maximum possiblely retains normal structure, avoids the structure sacrifice caused by microscope operation for realizing exposure purpose.

[0003] Ear endoscope cannot avoid the significant shortcomings of endoscopic surgery itself, namely single-hand operation and visual field pollution.In ear endoscope surgery, certain pressure isotonic solution, such as normal saline, is continuously perfused in ear endoscope cavity, and negative pressure suction is used in the same operation area outside, such as ear canal or ear, to guide water flow direction, which can establish a continuous and stable clear underwater operation environment, namely ear endoscope surgery continuous perfusion mode.

[0004] The existing perfusion mode uses endoscope perfusion mirror sheath based on conventional connection light source and camera, which has the following shortcomings:

[0005] (1) Expensive endoscope perfusion mirror sheath: each mirror sheath is about 3000 yuan, and the mirror sheath can be sterilized and reused, but it needs sterilization waiting time for multiple uses.

[0006] (2) Affect the accuracy of operation parameters: due to the gap between the mirror sheath and the endoscope, the actual flow rate of the liquid in the sheath during the operation is lower than the value displayed by the instrument, which is easy to cause misjudgment.

[0007] (3) Reduce ear canal operation space: the diameter of the endoscope system increases by at least 0.5mm when working with the sheath, which occupies the narrow ear canal space and hinders the application of other surgical instruments.

[0008] (4) Increase daily maintenance cost: after operation, it needs to be thoroughly cleaned and regularly maintained to avoid sheath liquid pipeline blockage and switch failure. SUMMARY

[0009] The utility model aims at overcoming the defects in the prior art, and provides an ear endoscope surgery continuous perfusion liquid sheath support which is low in price, convenient to use and does not occupy the operation space in ear canal.

[0010] The utility model discloses a kind of ear endoscope surgical continuous perfusion liquid sheath support, including the whole columnar elastic support main body, the support main body includes respectively tubular inner wall and outer wall, the upper end of the inner wall and outer wall is connected by annular top wall, the lower end of the inner wall and outer wall is connected by annular bottom wall, the inner side of the inner wall is the instrument channel of the support main body;Cavity is equipped between the inner wall and outer wall, infusion tube port is equipped in the annular top wall or the upper end edge of the outer wall and is communicated with the cavity, infusion tube or infusion tube connector is equipped on the infusion tube port, annular bottom wall is equipped with a plurality of evenly distributed and communicated with the cavity liquid outlet hole.

[0011] The support main body is cylindrical or frustum-shaped as a whole.

[0012] The height of the support main body is 5-8mm.

[0013] The inner diameter of the instrument channel is 5-8mm.

[0014] The upper end diameter of the outer wall of the support main body is 8-10mm, and the lower end diameter of the outer wall of the support main body is 6-10mm.

[0015] The upper end of the outer wall of the support main body is provided with a flexible retaining edge or a flexible pull ring.

[0016] The liquid outlet hole is a round hole with a hole diameter of 0.9-1mm, or the liquid outlet hole is a square hole with a side length of 0.9-1mm.

[0017] The width of the annular top wall is 1.1-3mm.

[0018] The width of the annular bottom wall is 1.1-3mm.

[0019] The support main body is a silica gel support.

[0020] The utility model discloses the beneficial effect is: through the infusion tube port connection infusion tube, perfusion liquid is filled into cavity and flows into external auditory canal through the liquid outlet hole, continuous perfusion, keeps clear of surgical field.Through the instrument channel, realize ear endoscope, surgical instrument access external auditory canal and perfusion liquid flow out.The utility model discloses when using, support main body mostly locates the cartilage part of external auditory canal, expands surgical operation space, avoids with other surgical instruments mutual interference, reduces the occupation space of perfusion mirror sheath in deep part of external auditory canal.The liquid outlet hole is evenly distributed, guarantees that perfusion liquid flows out evenly, reduces the directional deviation of flow out.The utility model discloses cost low, reduces medical cost, disposable article, simple operation, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model.

[0022] Figure 2 is the structure schematic diagram of the bottom direction of the utility model.

[0023] Figure 3 is the internal structure schematic diagram of the utility model.

[0024] Figure 4 is the internal structure schematic diagram of the embodiment one of the utility model.

[0025] Figure 5 is the structure schematic diagram of the embodiment two of the utility model.

[0026] Wherein: 1, support main body, 2, inner wall, 3, outer wall, 4, annular top wall, 5, annular bottom wall, 6, instrument channel, 7, cavity, 8, infusion pipe, 9, infusion pipe, 10, infusion pipe joint, 11, liquid outlet hole, 12, flexible baffle, 13, flexible pull ring. Specific implementation

[0027] According to Figures 1-5 , the utility model is a kind of ear endoscope surgical continuous perfusion liquid sheath support, including the elastic support main body 1 of whole column shape, the support main body 1 preferably silica gel support.The support main body 1 includes the inner wall 2 and outer wall 3 respectively in tubular shape, the upper end of the inner wall 2 and outer wall 3 is connected by annular top wall 4, the lower end of the inner wall 2 and outer wall 3 is connected by annular bottom wall 5, the inner side of the inner wall 2 is the instrument channel 6 of the support main body 1;Cavity 7 is equipped between the inner wall 2 and outer wall 3, annular top wall 4 or the upper end edge of outer wall 3 is equipped with the infusion pipe 8 that is connected with the cavity 7, infusion pipe 8 is equipped with infusion pipe 9 and / or infusion pipe joint 10, annular bottom wall 5 is equipped with a plurality of evenly distributed and the liquid outlet hole 11 that is connected with the cavity 7.The external whole of support main body 1 is cylindrical or frustum type.

[0028] The height of the support main body 1 is 5-8mm, preferably 6mm.The inner diameter of the instrument channel 6 is 5-8mm, preferably 7mm.The diameter of the upper end of the outer wall 3 of the support main body 1 is 8-10mm, preferably 9mm, and the diameter of the lower end of the outer wall 3 of the support main body 1 is 6-10mm, preferably 8mm.The liquid outlet hole 11 is a circular hole with a hole diameter of 0.9-1mm, or the liquid outlet hole 11 is a square hole with a side length of 0.9-1mm.The width of the annular top wall is 1.1-3mm.The width of the annular bottom wall is 1.1-3mm.

[0029] The utility model is further described in the following specific embodiment. Embodiment one:

[0030] According to Figure 4, the outer wall 3 of the support body 1 is provided with a flexible pull ring 13 on one side of the upper end, and the remaining structure is as described above. The flexible pull ring 13 of the embodiment is convenient for taking the utility model out of the external auditory canal. Example two:

[0031] According to Figure 5 , the outer wall 3 of the support body 1 is provided with a flexible pull ring 13 on one side of the upper end, and the remaining structure is as described above. The flexible pull ring 13 of the embodiment is convenient for taking the utility model out of the external auditory canal.

[0032] In use, the support body 1 is folded and placed in the external auditory canal or the cartilage part of the external auditory canal, and the external auditory canal is supported and fixed at the opening of the external auditory canal through the self-rebound effect. The infusion tube 9 and / or the infusion tube connector 10 are connected with an infusion extension tube or a pressure pump, so that the physiological saline can enter the cavity 7 through the infusion tube port 8, and then continuously flow into the external auditory canal through the liquid outlet hole 11, continuously perfuse, and keep the surgical field clear. The instrument channel 6 is convenient for the ear endoscope, surgical instruments to enter and exit the external auditory canal and the perfusion liquid to flow out.

Claims

1. An endotoscopic surgical continuous irrigation fluid sheath support, characterized by: The elastic support body is in the shape of a whole column, and comprises an inner wall and an outer wall in the shape of a tube respectively, the upper ends of the inner wall and the outer wall are connected by a ring-shaped top wall, the lower ends of the inner wall and the outer wall are connected by a ring-shaped bottom wall, and the inner side of the inner wall is an instrument channel of the support body; a cavity is arranged between the inner wall and the outer wall, a transfusion pipe opening is arranged on the ring-shaped top wall or the upper end edge of the outer wall and is communicated with the cavity, a transfusion pipe or a transfusion pipe joint is arranged on the transfusion pipe opening, and a plurality of liquid outlet holes which are uniformly distributed and are communicated with the cavity are arranged on the ring-shaped bottom wall.

2. The endoscopic surgical irrigation fluid continuous perfusion sleeve holder of claim 1, wherein: The support body is in the shape of a whole column or a frustum of a cone.

3. The endoscopic surgical irrigation fluid continuous perfusion sleeve holder of claim 1, wherein: The height of the support body is 5-8 mm.

4. The endoscopic surgical irrigation fluid continuous perfusion sleeve holder of claim 1, wherein: The inner diameter of the instrument channel is 5-8 mm.

5. The endoscopic surgical irrigant cuff stent of Claim 1, wherein: The diameter of the upper end of the outer wall of the support body is 8-10 mm, and the diameter of the lower end of the outer wall of the support body is 6-10 mm.

6. The surgical endoscopic continuous irrigation fluid cuff holder of claim 1 or 5, wherein: Flexible retaining edges or flexible pull rings are arranged around the upper end of the outer wall of the support body.

7. The endoscopic surgical irrigant cuff stent of Claim 1, wherein: The liquid outlet holes are round holes with a hole diameter of 0.9-1 mm, or the liquid outlet holes are square holes with a side length of 0.9-1 mm.

8. The endoscopic surgical irrigant cuff stent of Claim 1, wherein: The width of the ring-shaped top wall is 1.1-3 mm.

9. The endoscopic surgical irrigant cuff stent of Claim 1, wherein: The width of the ring-shaped bottom wall is 1.1-3 mm.

10. The endoscopic surgical irrigant cuff stent of Claim 1, wherein: The support body is a silica gel support.

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