CN105209109A - Flow-stopping clamp apparatus - Google Patents
Flow-stopping clamp apparatus Download PDFInfo
- Publication number
- CN105209109A CN105209109A CN201380075555.6A CN201380075555A CN105209109A CN 105209109 A CN105209109 A CN 105209109A CN 201380075555 A CN201380075555 A CN 201380075555A CN 105209109 A CN105209109 A CN 105209109A
- Authority
- CN
- China
- Prior art keywords
- self
- main body
- locking member
- cam
- clamp device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/286—Wedge clamps, e.g. roller clamps with inclined guides
- A61M39/287—Wedge formed by a slot having varying width, e.g. slide clamps
Abstract
A flow-stopping clamp apparatus used for cutting off an infusion channel, suitable for application on an extension tube of an indwelling needle, comprising a main body (1), where the main body (1) is provided thereon with a transverse channel (7) for an infusion tube to run through, and comprising, arranged in a downward sequence on the main body (1), a button (2), a self-locking component (3), a press-stop element (4), and compression spring A (5). Cylindrical cams (31) are provided on the self-locking component. A plurality of the cylindrical cams (31) is uniformly distributed along the circumference of self-locking component (3). The cams face upwards. A plurality of push teeth (21) corresponding to the cylindrical cams (31) is uniformly distributed along the circumference of the lower end surface of the button. The need for using a finger separately to press the infusion tube during a flow-stopping clamping process is obviated, and an infusion lumen can be cut off conveniently and freely simply by pressing the button, as such, not only negative pressure is not generated, and the clamp is firmly gripped and does not fall off, but also the operation is easy and convenient.
Description
Technical field
The present invention relates in clinical treatment
A kind of outer transfusion instrument of human body, the pipe external switch for ending infusion channel, particularly a kind of fluid stopping clamp device, it is especially suitable for applying in the extension tube of remaining needle.
Background technology
A kind of indwelling needle assembly is as shown in Figure 1 in the prior art
, it is socketed with the middle of sheet flow-stopping clip, flow-stopping clip outside extension tube thereon and is provided with the wedge-shaped line of rabbet joint, is easy to extension tube to be caught in fluid stopping.When using
Need two hands gently to pinch flow-stopping clip both sides extension tube respectively, then flow-stopping clip is promoted with thumb, extension tube is clamped into fluid stopping.Because extension tube by finger is pinched pressure, liquid in pipe is necessarily extruded intravasation, and finger is once decontrol, and extension tube recovers shape by natural resiliency, and luminal space increases and produces negative pressure.If this flow-stopping clip is applied on remaining needle, this negative pressure necessarily causes blood in blood vessel to be entered by suck-back in inlying catheter, after solidification inlying catheter head can be caused to be blocked, it is impossible to be infused next time.And sheet flow-stopping clip is in indwelling clamping process, due to being not locked out, when sufferer position is improper, it is easily caused flow-stopping clip and skids off extension tube, so as to lose clamping effect.
The content of the invention
It is an object of the invention to overcome weak point of the prior art, and the fluid stopping clamp device for being difficult to slip and lose clamping effect after negative pressure, and clamping will not be produced by providing a kind of clipping operation process.
The purpose of the present invention is realized by following approach.
The interconnection that a kind of infusion tube is passed through is provided with fluid stopping clamp device, including main body, main body, its composition is characterized by：Also include the button being sequentially arranged on from top to bottom in main body, self-locking member, press stop member and compression spring A, a kind of cylindrical cam is provided with self-locking member, plural groups cylindrical cam is along self-locking member circumference uniform distribution, cam is face-up, button lower surface is uniformly distributed along the circumference a plurality of promotion teeth corresponding with cylindrical cam, dedentition is promoted on cam surface, that side for promoting tooth relative with cam tooth top is the inclined-plane that a kind of height is more than cam height, self-locking member is constructed but is connected with pressure stop member Construction integration or split, compression spring A is arranged in pressure stop member and main body between bottom, simultaneously, the interconnection that infusion tube is passed through also is located in pressure stop member and main body between bottom, guide groove is distributed between two adjacent groups cylindrical cam, main body internal perisporium has extended downwardly guiding rib corresponding with guide groove, reset under free state, the position of cylindrical cam bottom of the tooth is higher than the bottom for being oriented to rib, and guiding rib is nested in guide groove.
The button that is positioned through circumferencial direction is pushed, promoting self-locking member to come downwards to, cylindrical cam top is low to cross the bottom for being oriented to rib, the self-locking member of release continues to rotate in the promotion tooth effect that cam surface is pushed, it is oriented to rib and climbs up cam surface to cam tooth bottom and cam side peak face by touching and locking, now the promotion tooth under free state has got over cam tooth top under the contacting of its inclined-plane and cam tooth top and has entered next cam surface, self-locking member band dynamic pressure stop member is descending, compression spring A is compressed, interconnection constriction, woven hose is ended by compression.If needing to reset, push button, promoting self-locking member to come downwards to, cylindrical cam top is low to cross the bottom for being oriented to rib, the self-locking member of release continues to rotate in the promotion tooth effect that cam surface is pushed, rib is oriented to get over cam side peak and fall into guide groove, the self-locking member of release in the presence of the compression spring A on move to reset, interconnection relaxes, woven hose recovers lumen shape according to natural resiliency, and transfusion is continued.
Above whole operation process separately presses woven hose without finger, only by push button can convenient cut-off transfusion lumen, not but not produce negative pressure, firm grip will not fall off, and operating process is simple and convenient.
The purpose of the present invention can also be realized by following approach.
Every group of cylindrical cam can be made up of a cylindrical cam, it is preferred that continuously distributed and constitute by two cylindrical cams.
Button promotes and guide groove is distributed with the circumferencial direction of flank, the embedding rib containing guiding of this guide groove.
So, either in reset state still in lockup state, guiding rib is nested with the guide groove all the time, and button is in the state that circumferencial direction is locked out all the time.
Self-locking member is constructed with the split of pressure stop member, and a kind of compression spring B is arranged between self-locking member and pressure stop member.
So, when self-locking member is rotated, pressure stop member, which is not rotated typically, to produce pivoting friction to woven hose, meanwhile, when resetting operation, more with respect to compression spring A that compressed is compression spring B, so, when resetting operation interconnection continue constriction amount it is less, so as to allow the interconnection under lockup state to be designed the smaller of manufacture, make cut-off effect more preferable.
It is in a kind of circular arc to be oriented to rib bottom.
Compression spring A has two, respectively positioned at the both sides of interconnection.
A kind of triangle boss of bottom projection and prominent convex in interconnection in main body.
This triangle boss can be with significantly more efficient cut-off woven hose.
Main body is a kind of cylindrical shell, is formed by two parts docking up and down.
In summary, the present invention has the following advantages that compared with prior art：Whole operation process separately presses woven hose without finger, only by push button can convenient cut-off transfusion lumen, not but not produce negative pressure, firm grip will not fall off, and operating process is simple and convenient.
Brief description of the drawings
Fig. 1 is a kind of indwelling needle assembly schematic diagram with sheet flow-stopping clip of the prior art；
Fig. 2 is the indwelling needle assembly schematic diagram with fluid stopping clamp device of the present invention；
Fig. 3 is a kind of structural representation stereogram of the section view angle of fluid stopping clamp device described in preferred embodiment in the reset state；
Fig. 4 is the structural representation stereogram of another section view angle of fluid stopping clamp device described in preferred embodiment in the reset state；
Fig. 5 is the structural representation stereogram of fluid stopping clamp device described in preferred embodiment in a latched condition；
Fig. 6 is the structural representation stereogram that fluid stopping clamp device described in preferred embodiment ends woven hose in a latched condition.
Label declaration：
1 main body 11 is oriented to the button 21 of 14 switch base of rib 12 triangle boss, 13 switch cover 2 and promotes the self-locking member of 22 guide groove of tooth 3
The interconnections of 6 compression spring B of the guide groove 4 of 31 cylindrical cam 32 pressure 5 compression spring A of stop member 7
8 extension tubes
More description in detail is carried out to the present invention below in conjunction with the accompanying drawings
Embodiment
Most preferred embodiment：
Reference picture 2, fluid stopping clamp device of the present invention is applied in indwelling needle assembly, and remaining needle extension tube 8 passes through the interconnection of fluid stopping clamp device.
Reference picture 3 and Fig. 4, fluid stopping clamp device, including main body 1, main body 1 are a kind of cylindrical shells, are docked and formed with two parts of switch base 14 of lower part by the switch cover 13 of upper part, and the interconnection 7 that a kind of infusion tube is passed through is provided with the intracavity bottom of main body 1.Also include button 2, self-locking member 3, compression spring B6, pressure stop member 4 and the compression spring A5 being sequentially arranged on from top to bottom in main body 1.A kind of cylindrical cam 31 is provided with self-locking member 3, plural groups cylindrical cam 31 is along the circumference uniform distribution of self-locking member 3, cam is face-up, the lower surface of button 2 be uniformly distributed along the circumference it is a plurality of it is corresponding with cylindrical cam promotion teeth 21, tooth 21 is promoted to fall on cam surface, that side for promoting tooth 21 relative with cam tooth top is the inclined-plane that a kind of height is more than cam height, self-locking member 3 is constructed with the split of pressure stop member 4, compression spring B6 is arranged between self-locking member 3 and pressure stop member 4, compression spring A5 is arranged in pressure stop member 4 and main body 1 between bottom, simultaneously, the interconnection 7 that infusion tube is passed through also is located in pressure stop member 4 and main body 1 between bottom, compression spring A has two, it is located at the both sides of interconnection 7 respectively.Guide groove 32 is distributed between two adjacent groups cylindrical cam 31, the internal perisporium of main body 1 has extended downwardly guiding rib 11 corresponding with guide groove 32, reset under free state, the position of the bottom of the tooth of cylindrical cam 31 is nested in guide groove 32 higher than the bottom for being oriented to rib 11, and guiding rib 11.Every group of cylindrical cam is continuously distributed and constitute by two cylindrical cams.Button promotes and guide groove 22 is distributed with the circumferencial direction of the side of tooth 21, the embedding rib 11 containing guiding of this guide groove 22.It is in a kind of circular arc to be oriented to the bottom of rib 11.
Under state shown in Fig. 3, Fig. 4, pressure stop member 4 is to be in releasing orientation.Three guide grooves 22 are along entering to be oriented to rib 11 on switch cover 13 on button 2, the pressing slide mass of button 2 passes through switch cover lid edge interstitial hole, button 2 can freely up and down be slided in switch cover 13, on self-locking member 3 three guide grooves 32 be also along enter switch cover 13 on be oriented to rib 11, in the directed cavity body of the upper end guide cylinder insertion inner core of button 2 of self-locking member 3, cylindrical cam face highest point promotes the tooth top of tooth 21 to offset with button respectively thereon, press on the upper end guide cylinder insertion self-locking member 3 of stop member 4 in directed cavity body, compression spring between stop member 4 and self-locking member 3 is pressed to be in free extended configuration, and press 4 times compression springs of stop member to be also at reset extended configuration.From under above-mentioned two spring effect, button 2, self-locking member 3 are moved up along the inner rip of switch cover 13, and pressure stop member 4 is moved up away from switch base bottom also with self-locking member 3.
Button 2 is pressed when in use, button 2 is oriented to rib 11 on switch cover 13 and moved down, and three guide grooves 32 are yet stuck in guiding rib 11 on switch cover 13 on self-locking member 3, therefore, self-locking member 3 is also oriented to rib 11 on switch cover 13 and moved down, so as to drive 3 times compression spring Bs 6 of self-locking member and pressure stop member 4 to move down, pressure stop member 4 is moved down to be contacted with extension tube 8, self-locking member 3 continues to move down, compression spring B6 is compressed, compression spring B6 elastic force promotes the pressure compressing extension tube 8 of stop member 4, extension tube 8 is by pressure stop member 4 with compressing the extruding jointly of triangle boss 12 on switch base 14, tube chamber becomes flat, liquid in pipe is pressed against catheter block direction, thus reach to drive and liquid purpose is flow backwards in conduit, so as not to conduit tube component, conduit is solidified blood and blocked during indwelling, and can not infuse again.Moved down when self-locking member 3 is continued to press on by button 2, the tooth top of cylindrical cam 31 is oriented to the end points of rib 11 once exceeding switch cover thereon, the guide groove 32 of self-locking member 3 also deviates from switch cover and is oriented to rib 11, circumferencial direction is without constraint, upspringed in its lower compression spring under power effect, cylindrical cam 31 promotes the tooth top of tooth 21 to slide with button on self-locking member, and cylindrical cam 31 is a ramp formation, make self-locking member 3 slide to move down while rotating, the tooth top circumferencial direction of cylindrical cam 31 first crosses switch cover and is oriented to the end points of rib 11, upspringed in compression spring under power effect, switch cover is oriented to the end points of rib 11 and offseted with cylindrical cam face rapidly, cylindrical cam face is slided by with guiding rib end points on self-locking member 3, pushed up sideways to the tooth top of cylindrical cam second side until being oriented to rib 11, self-locking member 3 stops operating and is lockable.At this moment extension tube 8 is urged to that lumen wall is seamless by pressure stop member 4 and compression triangle boss 12 on switch base 14 jointly, and extension tube 8 is cut off.This lockup state is as shown in Figure 5 and Figure 6.
When infusing again, press promote tooth 21 to be against on cylindrical cam face on shift knob 2, button again, promote self-locking member 3, self-locking member
3 are oriented to rib 11 by switch cover 13 constrains, and can only first move down, once the tooth top of cylindrical cam 31 second, which exceedes, is oriented to the end points of rib 11, self-locking member 3
Circumferencial direction constraint release, under being acted in cylindrical cam face, slides and moves up while rotate, when self-locking member 3 goes to another cam flank thereon and guiding rib 11 side offsets, self-locking member 3
Rotation stop, guide groove 32 is suitable again under compression spring effect, on self-locking member 3 enters to be oriented to rib 11, and self-locking member 3 is moved up rapidly, and stop member 4 is pressed below in compression spring A5 and extension tube 8
Under elastic properties of materials effect, reset is also moved up rapidly, departs from extension tube 8, and extension tube 8 recovers lumen shape by own material elasticity, and infusion pipeline recovers connection.
The not described part of the present embodiment is same as the prior art.
Claims (8)
- Fluid stopping clamp device, including main body, the interconnection that a kind of infusion tube is passed through is provided with main body, it is characterized in that, also include the button being sequentially arranged on from top to bottom in main body, self-locking member, press stop member and compression spring A, a kind of cylindrical cam is provided with self-locking member, plural groups cylindrical cam is along self-locking member circumference uniform distribution, cam is face-up, button lower surface is uniformly distributed along the circumference a plurality of promotion teeth corresponding with cylindrical cam, tooth is promoted on cam surface, that side for promoting tooth relative with cam tooth top is the inclined-plane that a kind of height is more than cam height, self-locking member is constructed but is connected with pressure stop member Construction integration or split, compression spring A is arranged in pressure stop member and main body between bottom, simultaneously, the interconnection that infusion tube is passed through also is located in pressure stop member and main body between bottom, guide groove is distributed between two adjacent groups cylindrical cam, main body internal perisporium has extended downwardly guiding rib corresponding with guide groove, reset under free state, the position of cylindrical cam bottom of the tooth is higher than the bottom for being oriented to rib, and guiding rib is nested in guide groove 。
- Fluid stopping clamp device according to claim 1, it is characterised in that every group of cylindrical cam or be made up of a cylindrical cam, or it is continuously distributed and constitute by two cylindrical cams.
- Fluid stopping clamp device according to claim 1, it is characterised in that button promotes and guide groove is distributed with the circumferencial direction of flank, the embedding rib containing guiding of this guide groove.
- Fluid stopping clamp device according to claim 1, it is characterised in that self-locking member is constructed with the split of pressure stop member, a kind of compression spring B is arranged between self-locking member and pressure stop member.
- Fluid stopping clamp device according to claim 1, it is characterised in that it is in a kind of circular arc to be oriented to rib bottom.
- Fluid stopping clamp device according to claim 1, it is characterised in that compression spring A has two, respectively positioned at the both sides of interconnection.
- A kind of fluid stopping clamp device according to claim 1, it is characterised in that triangle boss of bottom projection and prominent convex in interconnection in main body.
- Fluid stopping clamp device according to claim 1, it is characterised in that main body is a kind of cylindrical shell, is formed by upper partial switch lid and the seat docking of lower partial switch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/074241 WO2014169428A1 (en) | 2013-04-16 | 2013-04-16 | Flow-stopping clamp apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105209109A true CN105209109A (en) | 2015-12-30 |
| CN105209109B CN105209109B (en) | 2017-10-17 |
Family
ID=51730666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075555.6A Active CN105209109B (en) | 2013-04-16 | 2013-04-16 | Fluid stopping clamp device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105209109B (en) |
| WO (1) | WO2014169428A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113631216A (en) * | 2019-02-20 | 2021-11-09 | 贝克顿·迪金森公司 | Extension pipe clamp providing positive displacement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102221456B1 (en) * | 2019-01-09 | 2021-03-02 | (주)지 메디 | Safety intra-vascular catheter set |
| CN110013615A (en) * | 2019-03-11 | 2019-07-16 | 浙江工业大学 | Push type spring window breaker |
| CN115382042B (en) * | 2022-08-26 | 2023-11-28 | 苏州瀚诺馨生物科技有限公司 | Needleless dosing joint for separation membrane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3627011A1 (en) * | 1986-08-09 | 1988-02-18 | Huebner Karl Alexander | Air trap for shutting off plastic tubes, especially infusion tubes |
| CN1293116A (en) * | 1999-10-14 | 2001-05-02 | 斑马株式会社 | Pen operated by push-button |
| US6883773B1 (en) * | 2004-01-20 | 2005-04-26 | Gilwal Technologies | Pinch valve |
| CN2923350Y (en) * | 2006-06-13 | 2007-07-18 | 马益民 | Pen with telescopic core |
| CN201684248U (en) * | 2010-04-29 | 2010-12-29 | 上海德朗医疗设备有限公司 | Disposable infusion pump self-control switch |
| CN102065931A (en) * | 2008-04-01 | 2011-05-18 | 泽维克斯公司 | Safety occluder and method of use |
| CN102793970A (en) * | 2012-08-17 | 2012-11-28 | 张亚平 | Separation cut-off clamp for safety vein needle |
| CN203263942U (en) * | 2013-04-16 | 2013-11-06 | 福建省百仕韦医用高分子股份有限公司 | Flow stopping clip device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2064370T3 (en) * | 1988-01-21 | 1995-02-01 | Hubner Karl Alexander | DEVICE FOR CLOSING FLEXIBLE PLASTIC TUBES, IN PARTICULAR INFUSION TUBES, FOR AIR TRAPS. |
| CN102824688A (en) * | 2012-09-13 | 2012-12-19 | 张亚平 | Dividing cut-off clip for safety vein puncture needle |
-
2013
- 2013-04-16 CN CN201380075555.6A patent/CN105209109B/en active Active
- 2013-04-16 WO PCT/CN2013/074241 patent/WO2014169428A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3627011A1 (en) * | 1986-08-09 | 1988-02-18 | Huebner Karl Alexander | Air trap for shutting off plastic tubes, especially infusion tubes |
| CN1293116A (en) * | 1999-10-14 | 2001-05-02 | 斑马株式会社 | Pen operated by push-button |
| US6883773B1 (en) * | 2004-01-20 | 2005-04-26 | Gilwal Technologies | Pinch valve |
| CN2923350Y (en) * | 2006-06-13 | 2007-07-18 | 马益民 | Pen with telescopic core |
| CN102065931A (en) * | 2008-04-01 | 2011-05-18 | 泽维克斯公司 | Safety occluder and method of use |
| CN201684248U (en) * | 2010-04-29 | 2010-12-29 | 上海德朗医疗设备有限公司 | Disposable infusion pump self-control switch |
| CN102793970A (en) * | 2012-08-17 | 2012-11-28 | 张亚平 | Separation cut-off clamp for safety vein needle |
| CN203263942U (en) * | 2013-04-16 | 2013-11-06 | 福建省百仕韦医用高分子股份有限公司 | Flow stopping clip device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113631216A (en) * | 2019-02-20 | 2021-11-09 | 贝克顿·迪金森公司 | Extension pipe clamp providing positive displacement |
| US11819656B2 (en) | 2019-02-20 | 2023-11-21 | Becton, Dickinson And Company | Extension tube clamp providing positive displacement |
| CN113631216B (en) * | 2019-02-20 | 2024-03-01 | 贝克顿·迪金森公司 | Extension pipe clamp for providing forward displacement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014169428A1 (en) | 2014-10-23 |
| CN105209109B (en) | 2017-10-17 |
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