Replaceable endoscope sheath tube

Abstract

The utility model provides a replaceable endoscope sheathing canal, which comprises an endoscope and a sheathing canal, the endoscope comprises an endoscope handle and an endoscope insertion tube, one end of the endoscope handle is connected with a display terminal, the other end of the endoscope handle is movably connected with the sheathing canal, one end of the endoscope handle close to the sheathing canal is provided with a handle connector, and the other end of the endoscope handle close to the sheathing canal is provided with a handle. A sheath tube fixing seat is arranged at one end, close to the endoscope handle, of the sheath tube, the endoscope handle is movably connected with the sheath tube through a handle connector and the sheath tube fixing seat, an end bayonet and a locking nut are arranged at the other end of the sheath tube, and the end bayonet is movably connected with the locking nut. The sheath tube can be replaced after being polluted by the outside or abraded, due to the fact that the cost of the sheath tube is relatively low, equipment is maintained by replacing the sheath tube, the maintenance cost can be saved, the sheath tube structure is easy and convenient to operate, and the relative position of the endoscope insertion tube and the sheath tube can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a kind of replaceable endoscope sheath. BACKGROUND

[0002] Endoscope is the detection instrument that traditional optics, human engineering, precision machinery, modern electronics, mathematics, software are integrated. It has image sensor, optical lens, light source illumination, mechanical device etc., it can enter into stomach through oral cavity or other natural orifice into body, and it can be seen the lesion that X-ray cannot show by using endoscope, so it is very useful to doctor, endoscope can reach the part that the naked eye is not easy to see by slender insertion tube and front end probe, and it has wide application scenarios in medical and industrial inspection, and the insertion tube of endoscope is fragile due to the integration of precision optics and optical elements, and its slender shape makes it more fragile, meanwhile, the insertion tube part of endoscope often accounts for most of the cost of equipment, and the cost of repair or replacement is relatively expensive. SUMMARY

[0003] The utility model aims at providing a kind of replaceable endoscope sheath to solve the problem of fragile and easily damaged endoscope insertion tube and expensive repair and replacement.

[0004] The technical scheme adopted by the above-mentioned utility model is: a replaceable endoscope sheath, comprising an endoscope and a sheath, the endoscope comprises an endoscope handle and an endoscope insertion tube, one end of the endoscope handle is connected with a display terminal, the other end of the endoscope handle is movably connected with the sheath, the endoscope handle is provided with a handle connector at the end close to the sheath, the sheath is provided with a sheath fixing seat at the end close to the endoscope handle, the endoscope handle and the sheath are movably connected through the handle connector and the sheath fixing seat, the other end of the sheath is provided with an end cap and a locking female, the end cap is movably connected with the locking female.

[0005] Further, one end of the endoscope insertion tube is fixedly connected with the endoscope handle, and the other end of the endoscope insertion tube is provided with an optical probe.

[0006] Further, the cross-sectional area of the endoscope insertion tube and the optical probe is smaller than that of the sheath, the end cap and the locking female.

[0007] Further, a plurality of elongated notches are circumferentially formed on the end cap, a first thread is provided on the outside of the end cap, a tapered surface is provided on the head of the end cap, and the end cap is made of elastic material.

[0008] Further, the locking female side is provided with a second thread, the end socket is movably connected with the locking female through the first thread and the second thread, and the locking female is internally provided with a stepped surface.

[0009] Further, the handle connector is movably connected with the sheath through the third thread and the fourth thread.

[0010] Further, the sheath is provided with a jackscrew on the side.

[0011] Further, the endoscope insertion tube is internally provided with a signal line.

[0012] Further, the locking female is provided with a hole at the front end, and the cross-sectional area of the hole is equal to the cross-sectional area of the optical probe.

[0013] The utility model discloses a detachable and replaceable sheath is arranged on the outside of the endoscope insertion tube, the sheath is used for supporting and protecting the endoscope insertion tube, and when the sheath is polluted or abraded by the outside, the sheath can be replaced, the cost of the sheath is relatively low, the equipment maintenance can be saved through replacing the sheath, the sheath structure of the utility model is simple and convenient to operate, the user is more convenient in the use and replacement process, the use convenience of the replaceable endoscope sheath is improved, through the cooperation of the end socket and the locking female, the relative position of the endoscope insertion tube and the sheath can be accurately controlled. BRIEF DESCRIPTION OF DRAWINGS

[0014] Sheath It is a structure schematic view of the first embodiment of the utility model;

[0015] Endoscope It is a schematic view of the first embodiment of the utility model;

[0016] Endoscope handle It is an end schematic view of the first embodiment of the utility model;

[0017] Endoscope insertion tube It is an end structure schematic view of the first embodiment of the utility model.

[0018] Main element symbol explanation:

[0019] Display terminal 1 Sheath fixing seat 2 End portion bayonet 201 Locking female 202 Handle connector 3 Jack screw 4 Step surface 5 Optical probe 6 Taper surface 7 Long-shaped notch 8 Second thread 9 First thread 10 Hole 11 Fourth thread 12 Third thread 13 Signal line 14 Figure 1 15 Figure 4 16 Figure 1 17 Figure 1 18

[0020] The following specific embodiments will further illustrate the utility model in connection with the above drawings. PREFERRED EMBODIMENT

[0021] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show several embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for purposes of description only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0024] Referring to the drawings Figure 1 to the drawings Figure 3 , a specific embodiment of a replaceable endoscope sheath provided by the utility model is shown.

[0025] Referring to the drawings Figure 3 A replaceable endoscope sheath, comprising an endoscope 2 and a sheath 1, the endoscope 2 comprising an endoscope handle 201 and an endoscope insertion tube 202, one end of the endoscope handle 201 is connected with a display terminal 3, the other end of the endoscope handle 201 is movably connected with the sheath 1, one end of the endoscope handle 201 close to the sheath 1 is provided with a handle connector 7, one end of the sheath 1 close to the endoscope handle 201 is provided with a sheath fixing seat 4, the endoscope handle 201 and the sheath 1 are movably connected through the handle connector 7 and the sheath fixing seat 4, the other end of the sheath 1 is provided with an end cap 5 and a locking female 6, the end cap 5 and the locking female 6 are movably connected.

[0026] Referring to the drawings Figure 4 In the above embodiment, one end of the endoscope insertion tube 202 is fixedly connected with the endoscope handle 201, the other end of the endoscope insertion tube 202 is provided with an optical probe 10, through the setting of the optical probe 10, the part is observed, and then the display terminal 3 is matched, so that the image signal can be sensed and displayed on the display terminal 3.

[0027] Referring to the drawings Figure 1 and the drawings Figure 3 In the above embodiment, the cross-sectional area of the end cap 5 is smaller than the cross-sectional area of the sheath tube 1, the locking female 6 and the end cap 5, so that the end cap 5 can pass through the sheath tube 1, the locking female 6 and the end cap 5.

[0028] Referring to the drawings Figure 1 and the drawings Figure 3 In the above embodiment, the end cap 5 is provided with a plurality of long-shaped notches 12 in the circumferential direction, the end cap 5 is provided with a first thread 14 on the outside, and the head of the end cap 5 is provided with a tapered surface 11. By setting the end cap 5 to be made of elastic material, the end cap 5 can be deformed flexibly, and can be clamped to the endoscope insertion tube 202 under pressure, and can restore to the original state without pressure, which is convenient for replacing and adjusting the sheath tube 1.

[0029] Referring to the drawings Figure 3 and the drawings Figure 3 In the above embodiment, the locking female 6 is provided with a second thread 13 on the inside, the end cap 5 and the locking female 6 are movably connected through the first thread 14 and the second thread 13, and the locking female 6 is further provided with a stepped surface 9 inside. By matching the second thread 13 provided in the locking female 6 and the first thread 14 provided in the end cap 5, when the locking female 6 is screwed in to a certain depth, the stepped surface 9 inside the locking female 6 presses the tapered surface 11 of the end cap 5, causing the end cap 5 to deform elastically and move towards the center, resulting in the inner hole of the end cap 5 being reduced, and the end of the insertion tube being clamped and fixed. When the locking female 6 is unscrewed in the opposite direction, the locking female 6 moves away from the end cap 5 and no longer presses the tapered surface 11 of the end cap 5, and the end cap 5 restores to the original state. At this time, the endoscope 202 insertion tube and the end cap 5 are in clearance fit, and the axial relative position of the two can be adjusted or a new sheath tube 1 can be replaced.

[0030] Referring to the drawings ​ In the above embodiment, the handle connector 7 is provided with a third thread 17 on the outside, the sheath tube fixing seat 4 is provided with a fourth thread 16 on the inside, and the handle connector 7 and the sheath tube 1 are movably connected through the third thread 17 and the fourth thread 16. By matching the third thread 17 provided in the handle connector 7 and the fourth thread 16 provided in the sheath tube fixing seat 4, the user can control the relative position of the sheath tube 1 installation, which is convenient for the user to adjust.

[0031] Referring to the drawings ​In the above embodiment, the side of the sheath 1 is provided with a top wire 8, a handle is provided with a handle connector 7, a center fixed insertion tube is provided with a third thread 17 outside, the third thread 17 is matched with a fourth thread 16 in the sheath fixed seat 4, the axial relative position of the sheath 1 and the endoscope insertion tube 202 can be determined by the screwing depth of the handle connector 7 and the sheath fixed seat 4, then the endoscope insertion tube 202 is locked and fixed relative to the sheath 1 by tightening the locking nut 6, and then the side top wire 8 of the sheath 1 is tightened to ensure that the relative position of the sheath 1 and the endoscope insertion tube 202 is stable.

[0032] Referring to the drawings ​ In the above embodiment, the inside of the endoscope insertion tube 202 is provided with a signal line 18, and the image signal sensed by the optical probe 10 is transmitted to the terminal display device through the signal line in the inside of the endoscope insertion tube 202 for image display.

[0033] Referring to the drawings ​ In the above embodiment, the front end of the locking nut 6 is provided with a hole 15, the cross-sectional area of the hole 15 is equivalent to the cross-sectional area of the optical probe 10 with a gap, so that the optical probe 10 can be matched with the locking nut 6 to play a supporting and protecting role.

[0034] The above embodiment only expresses several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be pointed out that for ordinary skilled persons in the art, several deformations and improvements can be made without departing from the concept of the utility model, which belongs to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A replaceable endoscope sheath comprising an endoscope (2) and a sheath (1), characterized in that: The endoscope (2) comprises an endoscope handle (201) and an endoscope insertion tube (202), one end of the endoscope handle (201) is connected with a display terminal (3), the other end of the endoscope handle (201) is movably connected with the sheath tube (1), one end of the endoscope handle (201) close to the sheath tube (1) is provided with a handle connector (7), one end of the sheath tube (1) close to the endoscope handle (201) is provided with a sheath tube fixing seat (4), the endoscope handle (201) and the sheath tube (1) are movably connected through the handle connector (7) and the sheath tube fixing seat (4), the other end of the sheath tube (1) is provided with an end cap (5) and a locking female (6), the end cap (5) and the locking female (6) are movably connected.

2. A replaceable endoscope sheath according to claim 1, wherein: One end of the endoscope insertion tube (202) is fixedly connected with the endoscope handle (201), and the other end of the endoscope insertion tube (202) is provided with an optical probe (10).

3. A replaceable endoscope sheath according to claim 2, wherein: The cross-sectional area of the endoscope insertion tube (202) and the optical probe (10) is smaller than that of the sheath tube (1), the end cap (5) and the locking female (6).

4. A replaceable endoscope sheath according to claim 1, wherein: The end cap (5) is provided with a first thread (14) outside, a taper surface (11) is arranged on the head of the end cap (5), and the end cap (5) is made of elastic material.

5. A replaceable endoscope sheath according to claim 1, wherein: The locking female (6) is provided with a second thread (13) inside, the end cap (5) and the locking female (6) are movably connected through the first thread (14) and the second thread (13), and the locking female (6) is further provided with a stepped surface (9) inside.

6. A replaceable endoscope sheath according to claim 1, wherein: The handle connector (7) is provided with a third thread (17) outside, the sheath tube fixing seat (4) is provided with a fourth thread (16) inside, and the handle connector (7) and the sheath tube (1) are movably connected through the third thread (17) and the fourth thread (16).

7. A replaceable endoscope sheath according to claim 1, wherein: The sheath tube (1) is provided with a jackscrew (8) on the side surface.

8. A replaceable endoscope sheath according to claim 1, wherein: The endoscope insertion tube (202) is provided with a signal line (18) inside.

9. A replaceable endoscope sheath according to claim 3, wherein: The locking female (6) is provided with a hole (15) at the front end, and the cross-sectional area of the hole (15) is equal to that of the optical probe (10). The endoscope (2) comprises an endoscope handle (201) and an endoscope insertion tube (202), one end of the endoscope handle (201) is connected with a display terminal (3), the other end of the endoscope handle (201) is movably connected with the sheath tube (1), one end of the endoscope handle (201) close to the sheath tube (1) is provided with a handle connector (7), one end of the sheath tube (1) close to the endoscope handle (201) is provided with a sheath tube fixing seat (4), the endoscope handle (201) and the sheath tube (1) are movably connected through the handle connector (7) and the sheath tube fixing seat (4), the other end of the sheath tube (1) is provided with an end cap (5) and a locking female (6), the end cap (5) and the locking female (6) are movably connected.

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