CN204106840U - The outer pipe end rubber seal plug of a kind of catheter - Google Patents
The outer pipe end rubber seal plug of a kind of catheter Download PDFInfo
- Publication number
- CN204106840U CN204106840U CN201420364189.8U CN201420364189U CN204106840U CN 204106840 U CN204106840 U CN 204106840U CN 201420364189 U CN201420364189 U CN 201420364189U CN 204106840 U CN204106840 U CN 204106840U
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- China
- Prior art keywords
- cock body
- anticreep
- rubber seal
- blind hole
- seal plug
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Abstract
The utility model discloses the outer pipe end rubber seal plug of a kind of catheter, comprise upper cover body and lower cock body, the wall outer surface of lower cock body is provided with anticreep body flange, and the cross section of anticreep body flange is triangle or subtriangular.Interference fit between rubber seal plug of the present utility model and catheter outer tube port inner wall, when plug being pushed or takes out outer tube port, anticreep body flange generation deformation, external pipe port inwall forms certain engaging power, the phenomenon that when avoiding using, plug comes off from outer tube port, good sealing effect.
Description
Technical field
This utility model relates to medical equipment technical field, is specifically related to the outer pipe end rubber seal plug of a kind of catheter.
Background technology
Postoperative patient that is handicapped or gatism needs to use o urethral catheterization device to urinate usually.Catheter is the Double layer pipeline made with natural rubber, silicone rubber or polrvinyl chloride, inner tube route urethra insert bladder in case drainage of urine out, after catheter inserts bladder, outer pipeline has an air bag to fix catheter near catheter head end to stay intravesical, to ensure that urinary catheter is not easily deviate from.The end of outer pipeline is provided with sealing-plug, with syringe needle puncture through seal plug during use, inflates in outer tube, air bag is expanded; In the use procedure of follow-up catheter, the Main Function of sealing-plug makes outer intraductal atmospheric pressure stablize exactly, to guarantee that air bag size is stablized.The cock body of sealing-plug of the prior art mostly is cylinder, and sealing effectiveness is undesirable, easily causes air bag to diminish, and then causes urinary catheter to come off; In addition, sealing-plug, in use with pin hole, also needs to be strengthened further to the sealing effectiveness of pin hole.Therefore, be necessary to improve catheter of the prior art outer pipe end rubber seal plug structure.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides that a kind of structure is simple, the outer pipe end rubber seal plug of catheter of sealing effectiveness and good anti-drop effect.
For realizing above-mentioned technique effect, the technical solution of the utility model is: the outer pipe end rubber seal plug of a kind of catheter, it is characterized in that, described rubber seal plug comprises upper cover body and lower cock body, the wall outer surface of described lower cock body is provided with anticreep body flange, and the cross section of described anticreep body flange is triangle or subtriangular.
In order to reduce the stroke of syringe needle puncture, ensure the sealing effectiveness of sealing-plug simultaneously, preferred technical scheme is, be provided with in described rubber seal plug and dominate to blind hole and secondary guiding blind hole, described dominating is arranged on upper cover body upper surface to blind hole opening, the opening of described pair guiding blind hole is arranged on the lower surface of described lower cock body, and described to dominate bottom end face to blind hole relative with the end face center, bottom of the secondary blind hole that leads and be folded with syringe needle puncture portion.
In order to ensure the sealing effectiveness of sealing-plug, preferred technical scheme is, the described bottom dominated to blind hole extends in described lower cock body, the described outline dominated to blind hole is approximate inverted cone-shaped, the described bottom end face dominated to blind hole is lower convex spherical shape, the bottom end face of described pair guiding blind hole is planar shaped, and the lead axis of blind hole of the described pair guiding bottom end face of blind hole and described pair is perpendicular.When the outer pipe end rubber seal plug of catheter uses, there is pressure differential in the both sides in syringe needle puncture portion, the pressure of described catheter outer tube on average upwards acts on pair guiding blind hole one side plane of syringe needle puncture layer, because the thickness of two sides in syringe needle puncture portion is greater than interior thickness, and syringe needle puncture portion area is little, the pressure extrusion syringe needle puncture portion of outer tube is upwards out of shape slightly, compared with the cambered surface pilot hole be set directly in prior art in upper cover body, better to pin hole sealing effectiveness.
In order to optimize sealing effectiveness further, simplify product structure, preferred technical scheme is simultaneously, and the wall outer surface of described lower cock body is axially disposed with at least two anticreep body flanges along lower cock body.
In order to optimize sealing effectiveness further, simplify product structure, preferred technical scheme is further simultaneously, and described at least two anticreep body flanges interval on the wall outer surface of described lower cock body is arranged.
When extracting cock body, anticreep body flange applies certain engaging power to catheter outer tube port inner wall, preferred technical scheme is, the outer surface of each described anticreep body flange is combined by upper taper seat and first time taper seat, and the cone height of described upper taper seat is less than the cone height of lower taper seat.
When extracting cock body, anticreep body flange applies certain engaging power to catheter outer tube port inner wall, preferred technical scheme can also be, the outer surface of described anticreep body flange is combined by upper planar annular and second time taper seat, and the ring width of described planar annular is less than the cone height of described second time taper seat.
In order to optimize the anticreep effect of rubber seal plug, preferred technical scheme is, the outer edge radius of at least two described anticreep body flanges increases along lower cock body bottom gradually to top orientation.
In order to optimize the anticreep effect of rubber seal bag, ensure the simple of production mould simultaneously, preferred technical scheme is, the wall outer surface of described lower cock body is arranged at intervals with the first anticreep body flange successively along lower cock body bottom to top, second anticreep body flange and the 3rd anticreep body flange, cock body section between described first anticreep body flange and lower cock body bottom surface is the first cock body section, cock body section between described second anticreep body flange and the first anticreep body flange is the second cock body section, cock body Duan Wei tri-cock body section between described 3rd anticreep body flange and the second anticreep body flange, cock body Duan Wei tetra-cock body section between described upper cover body and the 3rd anticreep body flange, described first cock body section, second cock body section, 3rd cock body section, the outline of the 4th cock body section is cylindrical, or be slightly less than the inversed taper platform shape of end face radius for bottom surface radius.
Ensure the simple and convenient for production of production mould, preferred technical scheme is, preferred technical scheme can also be, the outline of described first cock body section, the second cock body section, the 3rd cock body section, the 4th cock body section is cylindrical, and in adjacent two cock body sections, the cock body section bottom surface radius of top is not less than the cock body section bottom surface radius of below.
Advantage of the present utility model and beneficial effect are:
Interference fit between rubber seal plug of the present utility model and catheter outer tube port inner wall, when plug being pushed or takes out outer tube port, anticreep body flange generation deformation, external pipe port inwall forms certain engaging power, the phenomenon that when avoiding using, plug comes off from outer tube port, good sealing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model catheter outer pipe end rubber seal plug embodiment 1;
Fig. 2 is the profile of centrage vertically in Fig. 1;
Fig. 3 is the partial enlarged drawing of A in Fig. 1;
Fig. 4 is the structural representation of this utility model catheter outer pipe end rubber seal plug embodiment 2;
Fig. 5 is the partial enlarged drawing of B in Fig. 4.
In figure: 1, upper cover body; 2, lower cock body; 2-1, the first cock body section; 2-2, the second cock body section; 2-3, the 3rd cock body section; 2-4, the 4th cock body section; 3, anticreep body flange; 3-1, the first anticreep body flange; 3-2, the second anticreep body flange; 3-3, the 3rd anticreep body flange; 4, upper taper seat; 5, lower taper seat; 6, dominate to blind hole; 7, secondary guiding blind hole; 8, upper planar annular; 9, second time taper seat; 10, syringe needle puncture portion.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
As shown in Figure 1 to Figure 3, embodiment 1 is the outer pipe end rubber seal plug of catheter, and comprise upper cover body 1 and lower cock body 2, the wall outer surface of lower cock body 2 is provided with anticreep body flange 3, and the cross section of anticreep body flange 3 is triangle or subtriangular.
In embodiment 1, be provided with in rubber seal plug and dominate to blind hole 6 and secondary guiding blind hole 7, dominate and be arranged on upper cover body 1 upper surface to blind hole 6 opening, the opening of secondary guiding blind hole 7 is arranged on the lower surface of lower cock body 2, dominates bottom end face to blind hole 6 relative with the end face center, bottom of the secondary blind hole 7 that leads and be folded with syringe needle puncture portion 10.
In embodiment 1, the bottom dominated to blind hole 6 extends in lower cock body 2, the outline dominated to blind hole 6 is approximate inverted cone-shaped, the bottom end face dominated to blind hole 6 is lower convex spherical shape, the bottom end face of secondary guiding blind hole 7 is planar shaped, and the bottom end face of secondary guiding blind hole 7 is perpendicular with the axis of the secondary blind hole 7 that leads.
In embodiment 1, two anticreep body flange 3 intervals on the wall outer surface of lower cock body 2 are arranged.
In embodiment 1, the outer surface of each anticreep body flange 3 is combined by upper taper seat 4 and first time taper seat 5, and the cone height of upper taper seat 4 is less than the cone height of lower taper seat 5.Angle between above-mentioned upper taper seat and lower taper seat can be acute angle, right angle or obtuse angle, is preferably obtuse angle.
In embodiment 1, the outer edge radius of at least two anticreep body flanges 3 increases along lower cock body 2 bottom gradually to top orientation.
In embodiment 1, the wall outer surface of lower cock body 2 is arranged at intervals with the first anticreep body flange 3-1 successively along lower cock body 2 bottom to top, second anticreep body flange 3-2 and the 3rd anticreep body flange 3-3, cock body section between first anticreep body flange 3-1 and lower cock body 1 bottom surface is the first cock body section 2-1, cock body section between second anticreep body flange 3-2 and the first anticreep body flange 3-1 is the second cock body section 2-2, cock body Duan Wei tri-cock body section 2-3 between 3rd anticreep body flange 3-3 and the second anticreep body flange 3-2, cock body Duan Wei tetra-cock body section 2-4 between upper cover body 1 and the 3rd anticreep body flange 3-3, first cock body section 2-1, second cock body section 2-2, 3rd cock body section 2-3, the outline of the 4th cock body section 2-4 is cylindrical, or be slightly less than the inversed taper platform shape of end face radius for bottom surface radius.
In embodiment 1, first cock body section 2-1 also can be slightly less than the inversed taper platform shape of end face radius for bottom surface radius, second cock body section 2-2, the 3rd cock body section 2-3, the 4th cock body section 2-4 are cylindrical simultaneously, and in said structure, the first cock body section has certain guide effect.The bottom surface radius of the second cock body section 2-2 and the 3rd cock body section 2-3 is equal, simultaneously the bottom surface decreasing radius of the first cock body section 2-1, the second cock body section 2-2, the 4th cock body section 2-4.
In embodiment 1, the outline of the first cock body section 2-1, the second cock body section 2-2, the 3rd cock body section 2-3, the 4th cock body section 2-4 is cylindrical, and in adjacent two cock body sections, the cock body section bottom surface radius of top is not less than the cock body section bottom surface radius of below.
Embodiment 2
As shown in Figure 4 and Figure 5, embodiment 2 is with the difference of embodiment 1, and the outer surface of anticreep body flange 3 is combined by upper planar annular 8 and second time taper seat 9, and the ring width of planar annular 8 is less than the cone height of second time taper seat 9.
The cross section of the rubber seal plug in embodiment also can be arc or other shapes such as trapezoidal, but the results showed, cross section is that triangle or subtriangular anticreep sealing effectiveness are optimum.The height that anticreep body flange gives prominence to lower cock body side need to combine use the elastic deformation of elastomeric material to determine, in general, elastic deformation is larger, rubber seal beyond the Great Wall anticreep body flange to give prominence to the height of lower cock body side relatively large, vice versa.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from this utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. the outer pipe end rubber seal plug of catheter, it is characterized in that, described rubber seal plug comprises upper cover body and lower cock body, and the wall outer surface of described lower cock body is provided with anticreep body flange, and the cross section of described anticreep body flange is triangle or subtriangular.
2. the outer pipe end rubber seal plug of catheter according to claim 1, it is characterized in that, be provided with in described rubber seal plug and dominate to blind hole and secondary guiding blind hole, described dominating is arranged on upper cover body upper surface to blind hole opening, the opening of described pair guiding blind hole is arranged on the lower surface of described lower cock body, and described to dominate bottom end face to blind hole relative with the end face center, bottom of the secondary blind hole that leads and be folded with syringe needle puncture portion.
3. the outer pipe end rubber seal plug of catheter according to claim 2, it is characterized in that, the described bottom dominated to blind hole extends in described lower cock body, the described outline dominated to blind hole is approximate inverted cone-shaped, the described bottom end face dominated to blind hole is lower convex spherical shape, the bottom end face of described pair guiding blind hole is planar shaped, and the lead axis of blind hole of the described pair guiding bottom end face of blind hole and described pair is perpendicular.
4. the outer pipe end rubber seal plug of catheter according to claim 3, is characterized in that, the wall outer surface of described lower cock body is axially disposed with at least two anticreep body flanges along lower cock body.
5. the outer pipe end rubber seal plug of catheter according to claim 4, is characterized in that, described at least two anticreep body flanges interval on the wall outer surface of described lower cock body is arranged.
6. the outer pipe end rubber seal plug of catheter according to claim 5, it is characterized in that, the outer surface of each described anticreep body flange is combined by upper taper seat and first time taper seat, and the cone height of described upper taper seat is less than the cone height of lower taper seat.
7. the outer pipe end rubber seal plug of catheter according to claim 5, it is characterized in that, the outer surface of described anticreep body flange is combined by upper planar annular and second time taper seat, and the ring width of described planar annular is less than the cone height of described second time taper seat.
8. the outer pipe end rubber seal plug of the catheter according to claim 6 or 7, it is characterized in that, the outer edge radius of at least two described anticreep body flanges increases along lower cock body bottom gradually to top orientation.
9. the outer pipe end rubber seal plug of catheter according to claim 8, it is characterized in that, the wall outer surface of described lower cock body is arranged at intervals with the first anticreep body flange successively along lower cock body bottom to top, second anticreep body flange and the 3rd anticreep body flange, cock body section between described first anticreep body flange and lower cock body bottom surface is the first cock body section, cock body section between described second anticreep body flange and the first anticreep body flange is the second cock body section, cock body Duan Wei tri-cock body section between described 3rd anticreep body flange and the second anticreep body flange, cock body Duan Wei tetra-cock body section between described upper cover body and the 3rd anticreep body flange, described first cock body section, second cock body section, 3rd cock body section, the outline of the 4th cock body section is cylindrical, or be slightly less than the inversed taper platform shape of end face radius for bottom surface radius.
10. the outer pipe end rubber seal plug of catheter according to claim 9, it is characterized in that, the outline of described first cock body section, the second cock body section, the 3rd cock body section, the 4th cock body section is cylindrical, and in adjacent two cock body sections, the cock body section bottom surface radius of top is not less than the cock body section bottom surface radius of below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364189.8U CN204106840U (en) | 2014-07-03 | 2014-07-03 | The outer pipe end rubber seal plug of a kind of catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364189.8U CN204106840U (en) | 2014-07-03 | 2014-07-03 | The outer pipe end rubber seal plug of a kind of catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106840U true CN204106840U (en) | 2015-01-21 |
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ID=52324205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364189.8U Expired - Fee Related CN204106840U (en) | 2014-07-03 | 2014-07-03 | The outer pipe end rubber seal plug of a kind of catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223104A (en) * | 2018-11-13 | 2019-01-18 | 温州医科大学附属第医院 | A kind of device for rinsing and depressurizing for calculus in ureterscopy lithotrity |
| CN112791255A (en) * | 2021-03-08 | 2021-05-14 | 华中科技大学同济医学院附属协和医院 | Novel retention enemator |
-
2014
- 2014-07-03 CN CN201420364189.8U patent/CN204106840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223104A (en) * | 2018-11-13 | 2019-01-18 | 温州医科大学附属第医院 | A kind of device for rinsing and depressurizing for calculus in ureterscopy lithotrity |
| CN112791255A (en) * | 2021-03-08 | 2021-05-14 | 华中科技大学同济医学院附属协和医院 | Novel retention enemator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |