WO2015062101A1

WO2015062101A1 - Medical catheter stop flow clip capable of one-hand operation

Info

Publication number: WO2015062101A1
Application number: PCT/CN2013/086473
Authority: WO
Inventors: 陈永曦
Original assignee: 福建省百仕韦医用高分子股份有限公司
Priority date: 2013-11-02
Filing date: 2013-11-02
Publication date: 2015-05-07

Abstract

Disclosed is a medical catheter stop flow clip capable of one-hand operation, comprising a body and a catheter through hole (2.2.2) set on the body and used for passing through medical catheters, wherein the medical catheters has a clamped state and a diastolic state in the catheter through hole, also comprising an active lever (1), the body thereof being a lock lever locking sleeve (2), wherein the active lock lever (1) is longitudinally provided with a locked convex card (1.2.2) and an antiprolapsed convex card (1.2.4) being laterally elastically stretchable at regular intervals, wherein the locked convex card (1.2.2) and antiprolapsed convex card (1.2.4) are both an anti-kickback pawl, and the active lock lever is interposed in the cavity of the lock lever locking sleeve and a longitudinal-passage active lock lever is in sleeve connection with the lock lever locking sleeve. Compared to the prior art, this clip has the advantages of: the clip is simple to operate, and the procedure does not produce negative pressure and does not need to drawing medical catheters, and thereby would not produce operation accidents resulting from drawing medical catheters.

Description

One-handed operation of medical catheter stop clip

Instruction manual

Technical field

The present invention relates to a medical catheter stop clip, and more particularly to a medical catheter stop clip that can be operated with one hand.

Background technique

In the clinical medical treatment of liquid infusion, it is necessary to put a stop clip on the infusion catheter as a stop switch, for example, in the case of intravenous infusion, the specific instrument is shown in Figure 1. When the infusion end operation stop clip, both hands need to hold the catheter at both ends of the flow stop clamp and any one of the hands pushes the stop clip laterally so that the jaw of the stop clip clamps the catheter to stop the flow. During operation, the catheter at both ends of the stop clip is inevitably pressed by hand, especially the catheter at the front of the stop clip (near the end of the human body) will generate negative pressure due to the release of the hand-held compression, blood It will flow back into the catheter from the blood vessel, causing blood to clot and block the catheter, unable to infuse again, and severe thrombosis may occur, causing damage to the patient. In order to make up for this deficiency, it is customary to slide the catheter into the catheter assembly after the flow clamp is clamped, so that the catheter is gradually squeezed in the direction of the catheter assembly, and the catheter is gradually squeezed out of the reverse flow, but the flow clamp and the catheter are clamped. When the sliding resistance is large, the catheter is pulled out, and the catheter is easily pulled out from the jaws, causing a larger negative pressure, and the catheter is also elongated and thinned. After multiple pulling, the catheter is severely broken and the blood is caused to overflow. In addition, the catheter assembly is placed on the patient's body, and the length of the catheter is limited. If the catheter is inadvertently pulled, the catheter assembly will be pulled out of the patient's body. In order to avoid the above accident, the medical staff should be cautious when operating, sometimes stop the flow. If the length is not enough, it is still not guaranteed to drive the blood inside the catheter clean. Therefore, this operation mode is cumbersome, and the workload and psychological burden of the medical staff are greatly increased, and the negative pressure phenomenon cannot be completely eliminated.

Invention composition

The object of the present invention is to overcome the deficiencies in the prior art, and to provide an operation that is simple and convenient, does not generate negative pressure during operation, and does not require drawing a medical catheter, and does not cause an operation accident caused by pulling the medical catheter. The medical catheter stop clip can be operated with one hand.

The object of the present invention is achieved by the following route.

The medical catheter stop clip can be operated with one hand, including a body and a through-hole for the passage through the medical catheter, and the medical catheter has a clamped state and a relaxed state in the through-hole, the main points of which are: The utility model comprises a movable lock bar, wherein the body is a lock bar locking sleeve, wherein the movable lock bar is longitudinally spaced apart with a horizontally elastically retractable locking convex card and a retaining convex card, and the locking convex card and the retaining convex card are both a locking pawl, the movable locking bar is inserted in the locking rod locking sleeve cavity and one of the longitudinal passage movable locking rods is sleeved with the locking rod locking sleeve, the bottom portion of the locking rod is inserted into the through hole, and the locking convex card and the locking rod are locked When the locking sleeve is touched, the medical catheter is clamped on the clamping surface on the bottom side of the through-hole, and the locking convex card and the locking rod locking sleeve are separated from the locking contact and enter the above-mentioned socket section, when the movable locking lever is relaxed to the limit state. The retaining clip is in contact with the lock lever locking sleeve.

In this way, the retaining clip ensures that the movable lock lever is always inserted in the lock lever locking sleeve, and the medical catheter passing through the through hole is always at the clamping surface of the bottom surface of the movable lock rod and the bottom side of the through hole. between. The top surface of the movable lock lever and the lower bottom surface of the lock lever lock sleeve are respectively clamped and compressed by the thumb of the single hand and any other fingers, and the lock lock card is released when the movable lock lever is pressed against the lock lever sleeve to the card contact position. The sleeved section is laterally elastically stretched to engage with the corresponding card position of the lock lever locking sleeve, the medical catheter is clamped, and since the locking convex card is the anti-reverse pawl, the movable locking lever is locked in the reverse direction. After releasing the locking card, the movable locking rod is opened relative to the locking rod locking sleeve, and the medical catheter is no longer clamped in the through-hole, and is in a diastolic state, and the anti-distraction card ensures that the movable locking rod does not disengage from the lock. The plug of the rod locking sleeve.

The object of the present invention can also be achieved by the following means.

The movable lock bar is composed of an elastic piece and a main body, and the two elastic pieces are symmetrically distributed on both sides of the main body and elastically connected with the main body, and the two elastic pieces have lateral expansion and contraction, and the locking convex card and the retaining convex card are sequentially spaced along the longitudinal direction of the elastic piece. Distribution, a total of two locking convex cards and two retaining convex cards are symmetrically distributed on the two elastic pieces, respectively, in the clamped state, the two elastic pieces with the locking convex card and the retaining convex card are inserted in the lock bar locking sleeve In the cavity.

Thus, by simultaneously kneading the two elastic pieces, the locking convex card can be released.

There are many options for the construction of the elastic piece. A compression spring can be placed between the elastic piece and the main body to achieve elasticity, but the optimized structure should be:

The bottoms of the two elastic pieces are connected with the main body, and the upper part of the bottom part is freely extended upward to form an open jaw shape, and the two clamping jaws respectively have a slot between the main body and the main body, and the main body extends upward and protrudes to form the upper part of the upper jaw. The upper top portion is also exposed outside the lock lever locking sleeve, and both the locking convex card and the retaining convex cam are a pawl fixed on the clamping jaw.

The outer sides of the two jaws are inclined or curved, and the two sides of the locking sleeve locking sleeve are provided with two clamping jaws to form two elastic buckles, The bottoms of the two elastic release tabs are connected to the main body, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two jaws respectively have a slot between the lock lever sleeve body and the dew point on the pinch ear respectively. Compressed on the slope or curved surface of the two elastic piece jaws.

In this way, the two tabs are compressed, and the two elastic sheet jaws contract slightly downward while laterally contracting due to the action of the bevel or the curved surface, so that the locking of the locking cam is more labor-saving.

The bottom structure of the movable lock lever can be further optimized to:

The bottom of the movable lock bar is either a slightly blunt tooth shape, or a high or low stepped tooth shape, or a stepped tooth shape of different heights, and the tooth top line intersects or is perpendicular to the axis of the pipe hole.

In this way, the clamping is more secure.

The sleeve portion of the movable lock lever and the lock lever lock sleeve inserted in the lock lever locking sleeve is either located at the upper portion of the movable lock lever or at the upper and lower portions of the movable lock lever.

Further, the lock bar locking sleeve can be optimized in the following manner:

The lock lever locking sleeve includes a main body having a cavity open at one end, and the movable lock rod is inserted into the cavity from the opening, and the cavity is provided with a sleeved section which is sleeved with a corresponding portion of the movable lock lever and The embossing card may be in the free section from above, the lower end of the cavity intersecting the through-hole and the bottom end of the cavity being the clamping face of the medical catheter.

Thus, in the diastolic state, the locking convex card on the movable lock lever is sleeved in the socket section; in the clamped state, the locking convex card is also located in the socket section, or enters the free passage through the socket section. In this case, the locking cam can use the step of the socket section and the free section joint as the position to be engaged with the lock lever locking sleeve.

The side wall of the cavity corresponding to the retaining clip in the free passage is preferably transparent and open.

Preferably, the other end of the free passage further has a sleeve section, and the bottom end of the movable lock rod sequentially passes through the upper sleeve section, the free section, and then enters the sleeve section to be inserted into the sleeve hole.

In this way, the main body cavity has a socket section at both ends, and the sleeve of the movable lock rod and the lock rod locking sleeve inserted in the cavity has better stability.

The clamping surface of the bottom of the locking rod locking sleeve cavity is either a flat surface or a tooth shape corresponding to the tooth shape of the bottom of the movable locking rod and intermeshing.

The axis of the through hole of the locking rod locking sleeve may be parallel to the wide surface of the locking sleeve, in the middle of the narrow surface; or may be perpendicular to the wide surface of the locking sleeve, in the middle of the wide surface.

In summary, the present invention has the following advantages over the prior art: The operation is simple and convenient, no negative pressure is generated during the operation, and the medical catheter is not required to be pulled, and an operation accident caused by pulling the medical catheter is not generated.

DRAWINGS

1 is a schematic view showing the structure of an infusion set provided with a flow stop clip in the prior art.

2 is a schematic perspective view showing the structure of the one-handed medical catheter stop clip according to the first embodiment of the present invention.

3 is a schematic perspective view showing the structure of the movable lock lever in the one-handed medical catheter stop clip according to the first embodiment of the present invention.

4 is a schematic perspective view showing the structure of a lock lever locking sleeve in the one-handed medical catheter stop clip according to the first embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view showing the structure of a lock lever locking sleeve in the one-handed medical catheter stop clip according to the first embodiment of the present invention.

6 is a schematic view of the one-handed medical catheter stop clip in the clamped state according to the first embodiment of the present invention.

FIG. 7 is a schematic view of the one-handed medical catheter stop clip in the pop-up state according to the first embodiment of the present invention.

FIG. 8 is a schematic view of the one-handed medical catheter stop clip according to the first embodiment of the present invention in a diastolic state. FIG.

Figure 9 is a schematic perspective view showing the structure of a one-handed medical catheter stop clip according to a preferred embodiment of the present invention.

Figure 10 is a schematic perspective view of the structure of the movable lock bar in the one-handed medical catheter stop clip of the preferred embodiment of the present invention.

Label description:

1 movable lock lever 1.1 main body 1.1.1 composite clamping rib 1.2 elastic piece 1.2.1 locking plane 1.2.2 locking convex card 1.2.3 outer side of the jaw

1.2.4 Stopping the convex card 1.3 Upper top 2 Locking rod locking sleeve 2.1 Main body

2.1.1 Socket section 2.1.2 Cavity 2.1.3 Free paragraph 2.2 Elastic tripping pinch 2.2.1 Dew point 2.2.2 Through hole 2.2.3 Clamping surface

detailed description

Embodiment 1:

Referring to Figures 2, 6, 7, and 8, a medical catheter stop clip can be operated with one hand, including a movable lock bar 1 and a lock bar lock sleeve 2, and a bottom portion of the lock bar lock sleeve 2 is used for Through the through hole 2.2.2 of the medical catheter, the medical catheter 3 has a clamped state and a relaxed state in the through-hole 2.2.2. The movable lock bar 1 is longitudinally spaced apart from the horizontally elastically stretchable locking convex card 1.2.2 and the retaining convex card 1.2.4, the locking convex card 1.2.2 and the retaining convex card 1.2.4 are both a kind of anti-reverse spine The claw, the movable lock lever 1 is inserted in the lock lever locking sleeve 2 and one of the longitudinal passage movable lock lever 1 is sleeved with the lock lever locking sleeve 2, the bottom portion of which extends into the through hole 2.2.2, and the locking convex card 1.2.2 When the lock lever 2 is in contact with the lock lever, the medical catheter 3 is clamped on the clamping surface 2.2.3 on the bottom side of the through hole 2.2.2, and the locking convex card 1.2.2 is separated from the lock lever locking sleeve 2. After the card is touched, it enters the above-mentioned socket section 2.1.1. When the movable lock lever 1 is relaxed to the limit state, the retaining convex card 1.2.4 is in contact with the lock lever locking sleeve 2.

Referring to Fig. 3, the movable lock bar 1 is composed of an elastic piece 1.2 and a main body 1.1, and the two elastic pieces 1.2 are symmetrically distributed on both sides of the main body 1.1 and elastically coupled to the main body 1.1. The bottom of the two elastic pieces 1.2 is connected with the main body 1.1, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two clamping jaws respectively have a slot between the main body 1.1, and the main body 1.1 extends upward and protrudes from the two jaws. The upper top 1.3, the upper top 1.3 is also exposed outside the lock lever locking sleeve 2. The locking convex card 1.2.2 and the retaining convex card 1.2.4 are both pawls fixed on the clamping jaws. Thus, the two elastic pieces 1.2 have a lateral telescopic spring, and the locking convex card 1.2.2 and the retaining convex card 1.2.4 are sequentially spaced apart along the longitudinal direction of the elastic piece, and there are two locking convex cards 1.2.2 and two non-stopping portions. The convex cards 1.2.4 are symmetrically distributed on the two elastic sheets 1.2, respectively. The outer side of the two jaws 1.2.3 has an oblique curved surface. The bottom of the movable lock bar 1 has a stepped tooth shape of different heights to form a composite clamping rib 1.1.1, and the step tooth top line is perpendicular to the 2.2.2 axis of the pipe hole.

4 and 5, the lock lever locking sleeve includes a main body 2.1 and an elastic release tab 2.2, and two sides of the main body 2.1 are correspondingly provided with two jaws to form two Elastic tripping pinch 2.2 The bottom of the two elastic release tabs 2.2 is connected to the main body 2.1, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and each of the two clamping jaws has a slot between the body and the main body 2.1, and the pinch ears respectively have a dew point 2.2. .1 is pressed on the inclined surface of the jaws of the two elastic pieces 1.2. The main body 2.1 has a cavity 2.1.2 which is open at one end, into which the movable lock bar 1 is inserted, and the cavity 2.1.2 is provided with a corresponding portion of the movable lock bar 1 The ferrule paragraph 2.1.1 and the detachment convex card 1.2.4 can be in the free paragraph 2.1.3 from above, the lower end of the cavity 2.1.2 intersects the through hole 2.2.2 and the bottom end face 2.2.3 is The clamping surface of the medical catheter 3. The other end of the free passage 2.1.3 also has a socket section 2.1.1. The bottom end of the movable lock lever 1 passes through the previous socket section 2.1.1, and the free passage 2.1.3 enters the socket section 2.1. .1 Socket and then extend into the tube hole 2.2.2. Thus, both ends of the body cavity 2.1.2 have a socket section 2.1.1. In the free passage 2.1.3, the side wall of the cavity corresponding to the detachment convex card 1.2.4 is opened and opened. The clamping surface 2.2.3 at the bottom of the locking sleeve locking sleeve cavity is a combination of a flat surface and a groove. The locking rod locks the through hole 2.2.2 The axis is parallel to the wide side of the locking sleeve and is in the middle of the narrow side. Thus, in the diastolic state, the locking convex card 1.2.2 on the movable lock lever 1 is sleeved in the socket section 2.1.1 or the socket section 2.1.1 is ejected; in the clamped state, the convex card is locked 1.2. 2 through the socket section 2.1.1 into the free paragraph 2.1.3, at this time, the locking convex card 1.2.2 uses the step of the joint between the paragraph 2.1.1 and the free paragraph 2.1.3 as the locking rod locking sleeve 2 The location of the card touch.

The operation of this stop clip is as follows:

In clinical medicine, when it is necessary to cut off the medical catheter 3 When the channel is used, only one thumb and the index finger or the middle finger respectively pinch the end faces of the flow stop clamp, that is, the top of the movable lock bar 1.3 and the bottom surface of the lock bar lock sleeve 2, gently pinch, the movable lock bar 1 Moving inward along the cavity of the locking sleeve, since the elastic piece 1.2 on the locking rod has elasticity, it is restricted by the cavity wall of the locking sleeve, and the elastic piece 1.2 gradually swings closer to the inner side until the locking piece is locked on the elastic piece 1.2 1.2.2 Climb over the locking sleeve. Socket section 2.1.1, elastic sheet 1.2 Loss of restriction, return to the original shape, lock the convex card 1.2.2 Upper locking plane 1.2.1 Resisting in the socket section 2.1.1 The lower edge surface, at this time, the medical catheter 3 is subjected to the movable locking bar 1 at the bottom of the composite clamping rib 1.1.1 and the locking sleeve clamping surface 2.2.3 co-extruded, the medical catheter 3 inner wall is closely attached to the non-permeable gap, the medical catheter 3 channels are cut off. The locking and clamping structure has no over-limit and over-pressure operation during the clamping process, so that the medical catheter 3 does not occur after the finger is released. Rebounding causes negative pressure in the lumen of the tube, and the body fluid in the patient is not inhaled into the medical catheter end of the patient, thereby avoiding blockage of the medical catheter and prolonging the indwelling time of the medical catheter.

When it is necessary to open the medical catheter channel again, only one finger of the lock lever is used to gently press the elastic release tabs on both sides of the lock lever lock sleeve 2.2, and the dew point on the pinch ear 2.2.1 Pressing the elastic piece on the movable lock bar 1.2, elastic piece 1.2 swinging on the inner side to the elastic piece upper locking convex card 1.2.2 The outer edge spacing is smaller than the socket section 2.1.1 Inner cavity size, movable lock bar 1 Out of the constraint, the elastic piece 1.2 has a longitudinal slope on the side, under the constant pressure of the elastic release tab 2.2, plus the medical catheter 3 elastic recovery elastic force, the movable lock bar 1 The lock lever locking sleeve 2 is ejected outward along the inclined surface, and the medical catheter 3 is clamped and restrained to release the inner lumen passage. Since the lock lever elastic piece 1.2 has a retaining convex card 1.2.4, the movable lock lever 1 After the pop-up is released, the elastic piece 1.2 is restored to the original state, and the stop-locking card 1.2.4 is stopped. The movable lock lever 1 does not completely disengage from the locking rod locking sleeve cavity 2.1.2, which facilitates the re-clamping operation.

The parts not described in this embodiment are the same as those in the prior art.

Best embodiment:

Referring to Figure 9 and Figure 10, the medical catheter retaining clip can be operated with one hand, and the locking rod locking sleeve 2 is inserted through the tube hole. 2.2.2 The axis is perpendicular to the wide face of the locking sleeve and is in the middle of the wide face. The bottom of the movable lock bar 1 has a slightly blunt tooth shape at the top.

The parts not described in this embodiment are the same as those in the first embodiment.

Claims

The medical catheter stop clip can be operated with one hand, including a body and a through-hole for the passage through the medical catheter, the medical catheter having a clamped state and a relaxed state in the through-hole, characterized in that it further includes The utility model relates to an active lock lever, wherein the main body is a lock rod locking sleeve, and the movable lock rod is vertically arranged with a locking convex card and a retaining convex card which can be laterally elastically stretched, and the locking convex card and the retaining convex card are all one kind. The anti-pawl, the movable locking bar is inserted in the locking sleeve locking cavity and one of the longitudinal passage movable locking bars is sleeved with the locking bar locking sleeve, the bottom portion of the locking rod is inserted into the through hole, and the locking convex card and the locking bar are locked When the sleeve is touched, the medical catheter is clamped on the clamping surface of the bottom side of the tube hole, and the locking convex card and the locking rod locking sleeve are separated from the card and then enter the above-mentioned socket section, when the movable locking rod is relaxed to the limit state, The retaining clip is in contact with the lock lever locking sleeve.
The one-handed medical catheter stop clip according to claim 1, wherein the movable lock bar is composed of an elastic piece and a main body, and the two elastic pieces are symmetrically distributed on both sides of the main body and elastically connected with the main body, the two elastic pieces. The utility model has a horizontal telescopic spring, the locking convex card and the retaining convex card are sequentially spaced apart along the longitudinal direction of the elastic piece, and two locking convex cards and two retaining convex cards are symmetrically distributed on the two elastic pieces respectively, in the clamped state, two The elastic strip is inserted into the cavity of the lock bar locking sleeve together with the locking cam and the retaining clip.
The one-handed medical catheter stop clip according to claim 2, wherein the bottoms of the two elastic pieces are connected to the main body, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two jaws are respectively There is a slot between the main body, and the main body extends upwards and protrudes from the two clamping jaws to form an upper top portion, and the upper top portion is also exposed outside the locking rod locking sleeve, and the locking convex card and the retaining convex convex card are all fixed on the clamping jaw. The pawl on it.
The one-handed medical catheter stop clip according to claim 3, wherein the outer sides of the two jaws are inclined or curved, and the two sides of the lock lever locking sleeve are correspondingly provided with two jaws to form two

The elastic release buckles the ears, the bottoms of the two elastic release buckles are connected with the main body, and the upper part of the bottom portion is freely extended upward to form an open jaw shape, and the two clamp jaws respectively have a slot between the lock lock sleeve body and the pinch. The ear has a dew point on each of the inclined or curved faces of the two elastic piece jaws.
The one-handed medical catheter stop clip according to claim 1, wherein the movable locking rod and the locking portion of the locking rod locking sleeve are either located at an upper portion of the movable locking rod or at an upper portion and a lower portion of the movable locking rod. .
The one-handed medical catheter stop clip according to claim 2, wherein the bottom of the movable lock bar is either a slightly blunt tooth shape, or a high and low uniform stepped tooth shape, or a kind A stepped tooth shape of different heights, the top line of the tooth intersects or is perpendicular to the axis of the through hole.
The one-handed medical catheter stop clip according to claim 1 or 2 or 3 or 4 or 5, wherein the lock lever locking sleeve comprises a main body, the main body having a cavity open at one end, and the movable lock lever is from the opening Inserted into the cavity, the cavity is provided with a socket section that is sleeved with a corresponding portion of the movable lock bar, and a free passage in which the retaining clip can be from the upper side, the lower end of the cavity is intersected with the through hole The bottom end face is the clamping face of the medical catheter.
The one-handed medical catheter stop clip according to claim 7, wherein the side wall of the cavity corresponding to the retaining clip in the free passage is preferably transparent and open.
The one-handed medical catheter stop clip according to claim 7, wherein the other end of the free passage further has a socket section, and the bottom end of the movable lock rod sequentially passes through the previous sleeve section, freely. After the paragraph, enter the socket section and then extend into the tube hole.
The one-handed medical catheter stop clip according to claim 7, wherein the clamping surface of the bottom portion of the locking sleeve is either a flat surface or a tooth shape corresponding to the bottom of the movable locking rod. And can be in mesh with each other.
The one-handed medical catheter stop clip according to claim 7, wherein the axis of the through hole of the lock lever locking sleeve is parallel to the wide surface of the locking sleeve, in the middle of the narrow surface, and can also be wide with the locking sleeve. The face is vertical and is in the middle of the wide face.