CN217187394U - Negative pressure guide sheath - Google Patents
Negative pressure guide sheath Download PDFInfo
- Publication number
- CN217187394U CN217187394U CN202123123181.1U CN202123123181U CN217187394U CN 217187394 U CN217187394 U CN 217187394U CN 202123123181 U CN202123123181 U CN 202123123181U CN 217187394 U CN217187394 U CN 217187394U
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- joint
- negative pressure
- main body
- water tank
- outer sheath
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Abstract
The utility model provides a negative pressure guide sheath, include: an outer sheath, an expander conduit, and a connector assembly; the dilator catheter comprises: a main body portion and a tip portion; a water injection channel is arranged in the joint assembly; the outer sheath tube is internally provided with a cavity, and the first end of the outer sheath tube is connected with the joint component; the main body part penetrates through the cavity of the outer sheath tube, the tip part is arranged at one end of the main body part far away from the connector component, and the tip part is positioned outside the outer sheath tube; the outer surface of the main body part is provided with a water tank, the first end of the water tank is communicated with the water injection channel, and the second end of the water tank is used for communicating liquid to the outside. By providing the water channel on the outer surface of the dilator catheter, the size of the dilator tip is reduced, and the versatility of the negative pressure guiding sheath is enhanced.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a negative pressure guide sheath.
Background
A negative pressure introducer sheath for urological endoscopy and surgery for non-invasive creation of channels to assist the passage of endoscopic and surgical instruments into the urinary tract.
The traditional negative pressure guide sheath is provided with a main body part and a tip part, and the two parts are communicated with each other through water cavities; the size of the tip part is larger and the trafficability of the whole dilator is not high due to the fact that the tip part is connected with the water cavity, namely the cross section area of the tip part is larger.
SUMMERY OF THE UTILITY MODEL
The utility model provides a negative pressure guide sheath to the cross-sectional area of solving the negative pressure pointed end portion is great, presses the not high problem of trafficability characteristic of guide sheath.
The utility model provides a negative pressure guide sheath, include: an outer sheath, an expander conduit, and a connector assembly;
the dilator catheter comprises: a main body portion and a tip portion;
a water injection channel is arranged in the joint assembly;
the outer sheath tube is internally provided with a cavity, and the first end of the outer sheath tube is connected with the joint component;
the main body part penetrates through the cavity of the outer sheath tube, the tip part is arranged at one end of the main body part far away from the connector component, and the tip part is positioned outside the outer sheath tube;
the outer surface of the main body part is provided with a water tank, the first end of the water tank is communicated with the water injection channel, and the second end of the water tank is used for communicating liquid to the outside.
Optionally, the dilator catheter further comprises a hand buckle;
one end of the main body part, which is far away from the tip part, is connected with the hand buckle; the hand buckle is detachably connected to one end, far away from the outer sheath pipe, of the joint assembly.
Optionally, the hand is buckled the outside and is equipped with sawtooth part, sawtooth part includes a plurality of sawtooth grooves that are used for the joint subassembly, and a plurality of sawtooth grooves are followed expander pipe's axial distributes in proper order.
Optionally, the joint assembly comprises: a threaded joint, a joint main body portion, a joint bypass portion, and a seal portion;
one end of the joint bypass part is connected to the side wall of the joint main body part, the first end of the outer sheath tube is fixedly connected to the first end of the joint main body part, and the threaded joint is connected to the second end of the joint main body part;
the water injection channel is arranged at the joint bypass part, is communicated with the inner cavity of the joint main body part and is communicated to the water tank through the inner cavity;
the sealing part is used for sealing one end of the inner cavity far away from the outer sheath tube;
the nipple is removably connected to the dilator catheter.
Optionally, the sealing portion includes a sealing gasket disposed on the dilator catheter, and a sealing material filled in the water tank.
Optionally, the sealing material is a cured glue.
Optionally, a negative pressure hand-made device is arranged at the joint bypass part.
Optionally, the operating portion of the negative pressure hand control device is disposed on a side of the joint bypass portion facing the threaded joint.
Optionally, the water tank includes: the water tank comprises a linear water tank and/or a curved water tank, wherein the curved water tank comprises a plurality of arc-shaped water tank sections which are connected in sequence.
Optionally, the water channels are multiple, and the multiple water channels are uniformly distributed around the axis of the dilator catheter.
The utility model provides a negative pressure guide sheath, wherein, through set up the basin on the main part of expander pipe, thereby the basin can be with the water guide of one end water injection passageway to the other end outwards see off, need not to set up logical water cavity in the pointed end, and then, has avoided the radial dimension in logical water cavity in the pointed end for the pointed end of smaller size becomes possible, promptly: facilitating the formation of a tip portion of smaller radial dimension.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 inventive exercise.
Fig. 1 is an overall structure diagram of a negative pressure introducer sheath of the present invention;
fig. 2 is a schematic structural view of an expander conduit and joint assembly of the present invention;
fig. 3 is a schematic structural view of a hand buckle of the present invention;
fig. 4 is a schematic structural view of a negative pressure hand-made device of the present invention;
fig. 5 is a schematic view of an expander duct with a linear water tank according to the present invention;
fig. 6 is a schematic structural view of an expander conduit having an arc-shaped connecting water trough according to the present invention;
description of reference numerals:
10-a dilator catheter;
11-a body portion;
12-a tip portion;
13-hand buckling;
131-a clasp body portion;
132-a serration;
133-serrations;
20-sheath canal;
30-a joint assembly;
31-a threaded joint;
32-a connector body portion;
33-a joint bypass;
331-a button;
34-a sealing part;
40-water tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The technical solution of the present invention will be described in detail with reference to specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
As shown in fig. 1, a negative pressure introducer sheath comprises: an outer sheath 20, an expander conduit 10, a connector assembly 30;
wherein, the surface of sheath pipe 20 can be equipped with the scale, makes things convenient for the operating personnel can be clear know the negative pressure guide sheath and get into the degree of depth of human body when using, thereby prevents that the negative pressure guide sheath from getting into too deeply and causing the injury to the human body or the negative pressure guide sheath gets into too shallowly thereby influence the function of negative pressure guide sheath.
As shown in fig. 2, the dilator catheter includes: a main body 11, a tip 12;
a water injection channel is arranged in the joint component 30;
the water injection channel is used for connecting flowing liquid, wherein the liquid can be normal saline, clear water and the like.
The sheath tube 20 has a cavity therein, and a first end of the sheath tube 20 is connected to the joint assembly 30;
the main body part 11 is arranged in the cavity of the outer sheath tube 20 in a penetrating way, the tip part 12 is arranged at one end of the main body part far away from the joint component 30, and the tip part 12 is arranged outside the outer sheath tube 20;
wherein, the main body 11 can be extended out of the outer sheath 20 or can be flush with the outer sheath; it is also understood that the tip portion 12 is connected to the main body portion 12, and the main body portion 12 extends from the sheath 20 or is flush with the sheath 20.
The outer surface of the main body 11 is provided with a water tank 40, a first end of the water tank 40 is communicated with the water injection channel, and a second end of the water tank 40 is used for communicating liquid to the outside.
Wherein the position of the sink 40 can also be described as: the first end of the water tank 40 is the end near the joint assembly 30, and the second end of the water tank 40 is the end far from the joint assembly 30.
The dilator catheter 10 further comprises a hand buckle 13;
one end of the main body part, which is far away from the tip part 12, is connected with the hand buckle; the hand buckle 13 is detachably connected to an end of the joint assembly 30 away from the sheath tube 20.
The hand buckle 13 is used for fixing the dilator catheter main body part 12, namely after the main body part 12 is fixed, water flow can better circulate, and the use of an operator is facilitated.
As shown in fig. 3, the outer side of the buckle 13 is provided with a sawtooth portion 132 and a sawtooth portion 133, and the sawtooth portion 132 and the sawtooth portion 133 are distributed on both sides of the buckle main body portion 131, the sawtooth portion includes a plurality of sawtooth grooves for clamping the connector assembly 30, and the plurality of sawtooth grooves are sequentially distributed along the axial direction of the dilator catheter 10.
The connector assembly 30 has a plurality of serrated portions 132 and 133 for engaging with each other, and the serrated portions 132 and 133 have a plurality of serrated slots arranged in an arc shape, and each serrated slot is adapted to engage with the connector assembly 30.
The joint assembly includes: a threaded joint 31, a joint body 32, a joint bypass portion 33, and a seal portion 34;
one end of the joint bypass portion 33 is connected to the joint main body portion 32 and is close to the side wall of the hand buckle 13, the first end of the sheath tube 20 is fixedly connected to the first end of the joint main body portion 32, namely, the end close to the hand buckle 13, and the threaded joint 31 is connected to the second end of the joint main body portion 32;
the water injection channel is arranged at the joint bypass part 33, is communicated with the inner cavity of the joint main body part 32 and is communicated to the water tank 40 through the inner cavity;
the sealing part 32 is used for sealing one end of the inner cavity far away from the outer sheath tube 20;
the nipple 31 is detachably connected to the dilator catheter 10.
The sealing part 34 includes a sealing gasket provided in the dilator catheter 10 and a sealing material filled in the water tank.
The sealing part 34 is disposed on the dilator catheter 10 and is disposed between the hand buckle 13 and the threaded joint 31 for preventing the liquid in the water tank 40 from flowing out from a position close to the hand buckle 13 or the threaded joint 31.
The sealing material is solidified glue, and can also be a material which can prevent liquid from flowing out, such as rubber elastic material.
The joint bypass portion 33 is provided with a negative pressure hand device.
The negative pressure guide sheath is used for controlling the circulation of liquid in the middle water through cavity of the negative pressure guide sheath.
The operation portion of the negative pressure hand brake device is provided on the side of the joint bypass portion 33 facing the threaded joint 31.
As shown in fig. 4, in an example, the operation portion of the negative pressure hand control device may realize the flow of the liquid in the bypass portion 33 by pressing or pushing a button 331. When the operator presses or pushes the button 331, the external liquid is isolated from the liquid in the body, a negative pressure difference is formed, and the liquid in the body can be adsorbed; when the operator releases or pulls back the button 331, the external fluid is communicated with the internal fluid for flushing the occluded site in the body.
And the button 331 is located at the bypass portion 33 and opposite the dilator catheter 10, facilitating both left and right handed operation by the operator.
As shown in fig. 5 and 6, the water tank 40 includes: the water tank comprises a linear water tank and/or a curved water tank, wherein the curved water tank comprises a plurality of arc-shaped water tank sections which are sequentially connected, and the circle centers of adjacent arc-shaped water tanks are respectively positioned on two sides of the curved water tank.
Wherein the linear shape means: a straight line extending from one end of the dilator catheter to the other end; the curve is, for example, a sine wave shape extending from one end of the dilator catheter to the other.
The number of the water channels 40 is multiple, and the multiple water channels are uniformly distributed around the axis of the dilator catheter 10.
The embodiment of the utility model provides a change the passageway of circulation liquid into and arrange the basin on the surface of expander main part in, the corresponding cross-sectional area that is connected with the expander main part of expander pointed end reduces, finally makes under the specification of the same expander pipe for expander pointed end size is minimum to be possible.
Therefore, the negative pressure guide sheath provided by the utility model has the advantages that the water tank is arranged outside the dilator catheter, so that the cross sectional area of the dilator tip connected with the dilator catheter is reduced, namely the cross sectional area of the dilator tip is greatly reduced under dilators with the same size, the size of the dilator tip is correspondingly reduced, and the trafficability of the negative pressure guide sheath is enhanced; meanwhile, the button for controlling the liquid circulation is arranged at the position of the bypass part corresponding to the dilator catheter, so that the use of an operator is facilitated.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A negative pressure introducer sheath, comprising: an outer sheath, an expander conduit, and a connector assembly;
the dilator catheter comprises: a main body portion and a tip portion;
a water injection channel is arranged in the joint assembly;
the outer sheath tube is internally provided with a cavity, and the first end of the outer sheath tube is connected with the joint component;
the main body part is arranged in the cavity of the outer sheath tube in a penetrating mode, the tip part is arranged at one end, far away from the joint component, of the main body part, and the tip part is located outside the outer sheath tube;
the outer surface of the main body part is provided with a water tank, the first end of the water tank is communicated with the water injection channel, and the second end of the water tank is used for communicating liquid to the outside.
2. The negative pressure introducer sheath of claim 1, wherein the dilator catheter further comprises a hand buckle;
one end of the main body part, which is far away from the tip part, is connected with the hand buckle; the hand buckle is detachably connected to one end, far away from the outer sheath pipe, of the joint assembly.
3. The negative pressure introducer sheath of claim 2,
the outside of the hand buckle is provided with a sawtooth part, the sawtooth part comprises a plurality of sawtooth grooves used for clamping the joint assembly, and the sawtooth grooves are distributed in sequence along the axial direction of the expander conduit.
4. The negative pressure introducer sheath of claim 1,
the joint assembly includes: a threaded joint, a joint main body portion, a joint bypass portion, and a seal portion;
one end of the joint bypass part is connected to the side wall of the joint main body part, the first end of the outer sheath tube is fixedly connected to the first end of the joint main body part, and the threaded joint is connected to the second end of the joint main body part;
the water injection channel is arranged at the joint bypass part, is communicated with the inner cavity of the joint main body part and is communicated to the water tank through the inner cavity;
the sealing part is used for sealing one end of the inner cavity far away from the outer sheath tube;
the nipple is removably connected to the dilator catheter.
5. The negative pressure introducer sheath of claim 4,
the sealing part comprises a sealing gasket arranged on the dilator conduit and a sealing material filled in the water tank.
6. The negative pressure introducer sheath of claim 5,
the sealing material is solidified glue.
7. The negative pressure introducer sheath of claim 4,
and a negative pressure hand-made device is arranged at the bypass part of the joint.
8. The negative pressure introducer sheath of claim 7,
the operation part of the negative pressure hand-operated device is arranged on one side of the joint bypass part, which faces the threaded joint.
9. The negative pressure introducer sheath according to any one of claims 1 to 8,
the water tank includes: the water tank comprises a linear water tank and/or a curved water tank, wherein the curved water tank comprises a plurality of arc-shaped water tank sections which are connected in sequence.
10. The negative pressure introducer sheath according to any one of claims 1 to 8,
the number of the water channels is multiple, and the water channels are uniformly distributed around the axis of the expander conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123181.1U CN217187394U (en) | 2021-12-13 | 2021-12-13 | Negative pressure guide sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123123181.1U CN217187394U (en) | 2021-12-13 | 2021-12-13 | Negative pressure guide sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217187394U true CN217187394U (en) | 2022-08-16 |
Family
ID=82783312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123123181.1U Active CN217187394U (en) | 2021-12-13 | 2021-12-13 | Negative pressure guide sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217187394U (en) |
-
2021
- 2021-12-13 CN CN202123123181.1U patent/CN217187394U/en active Active
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| GR01 | Patent grant |