CN117339082A - Disposable pressure extension tube - Google Patents

Abstract

The application relates to the technical field of medical equipment, especially, relate to a disposable pressure extension pipe, including body, first joint and second joint, the both ends of body respectively with first joint with the second joint intercommunication, first joint includes outer joint, nipple and regulating part, the outer joint with nipple rotates to be connected and coaxial setting, the nipple with the body is kept away from the one end intercommunication of second joint, the regulating part respectively with the outer joint with nipple sliding connection, the regulating part is used for controlling the outer joint with nipple looks rotation or mutual fixing. The present application has the effect of reducing the likelihood of a decrease in tightness between the pipe body and the connection joint.

Description

Disposable pressure extension tube

Technical Field

The application relates to the technical field of medical instruments, in particular to a disposable pressure extension tube.

Background

At present, the pressure extension tube generally comprises a tube body and a connecting joint which are connected with each other, and the tube body is respectively connected with different medical instruments through the connecting joint so as to realize connection of pressure monitoring pipelines, transfusion, blood transfusion and the like.

In the use process, the medical apparatus is sometimes required to be moved or carried, but when the medical apparatus is moved or carried, the pressure extension tube is easy to twist, so that the tube body is deformed, and transfusion and blood transfusion are affected. At this time, if the pipe body is twisted, the pipe body is generally directly inserted into the connection joint, and the pipe body itself has flexibility, so that in the twisting process, one end of the pipe body inserted into the connection joint is deformed, and the tightness between the pipe body and the connection joint is reduced.

Accordingly, there is a need for a single use pressure extension tube.

Disclosure of Invention

In order to reduce the likelihood of a reduced tightness between the tube body and the connection fitting, the present application provides a single use pressure extension tube.

The application provides a disposable pressure extension tube adopts following technical scheme:

the utility model provides a disposable pressure extension pipe, includes body, first joint and second joint, the both ends of body respectively with first joint with the second connects the intercommunication, first joint includes outer joint, nipple and regulating part, the outer joint with the nipple rotates to be connected and coaxial setting, the nipple with the body is kept away from the one end intercommunication of second joint, the regulating part respectively with the outer joint with nipple sliding connection, the regulating part is used for control the outer joint with nipple looks mutual rotation or mutual fixing.

Through adopting above-mentioned technical scheme, when the body takes place to twist reverse, slip regulating part for outer joint and nipple can take place to rotate, thereby be convenient for turn right the body through rotating the nipple, in order to prevent that the body from warping, and then be favorable to reducing the possibility that the leakproofness between body and the nipple reduces.

When need not turn round the time to the body, sliding adjustment spare, adjusting part can be spacing to external connection and nipple for external connection and nipple are difficult for taking place relative rotation, thereby are favorable to reducing the body and drive the nipple and take place pivoted possibility, make the nipple can play certain restriction effect to the body, and then be favorable to reducing the body and take place the possibility of torsional deformation.

Optionally, the annular has been seted up along circumference on the circumference outer wall of outer joint, the spacing groove has been seted up along self axis direction on the circumference outer wall of outer joint, the spacing groove with the annular intercommunication, the spout has been seted up along self axis direction on the circumference outer wall of nipple, the both ends of regulating part are provided with first stopper and second stopper respectively, first stopper slides and inserts in the spacing inslot, the second stopper slides and inserts and establish in the spout.

Through adopting above-mentioned technical scheme, when need turn round the time to the body, remove the regulating part, the regulating part drives first stopper and second stopper and removes for first stopper breaks away from the spacing groove and inserts to establish to the annular in. At this time, the outer joint and the inner joint can rotate relatively, so that the inner joint is convenient to drive the pipe body to rotate, and the pipe body is twisted.

When the pipe body is not required to be twisted, the adjusting piece is moved, and the first limiting block is inserted into the limiting groove. At this moment, regulating part, first stopper and second stopper mutually support, and outer joint and nipple are spacing for outer joint and nipple are difficult for taking place relative rotation.

Optionally, be provided with the elastic component in the spout, the elastic component respectively with spout inner wall with the second stopper is connected, the elastic component is located the second stopper is close to one side of first stopper.

Through adopting above-mentioned technical scheme, the elastic component can promote the second stopper and remove in the spout, and the second stopper passes through the regulating part and drives first stopper and remove for the inner wall of the one end of annular is kept away from with the spacing groove to first stopper is contradicted. At this time, the first stopper exerts pressure to the external joint to the direction that the drive external joint is close to the nipple removes, thereby makes there is the trend of being close to each other between external joint and the nipple, and then is favorable to reducing the possibility that external joint and nipple take place to break away from.

Optionally, a plurality of limiting grooves are formed, the plurality of limiting grooves encircle the axis of the outer joint and are uniformly distributed, and the number of the first limiting blocks is equal to the number of the limiting grooves and is in one-to-one correspondence with the limiting grooves.

Through adopting above-mentioned technical scheme, a plurality of first stopper mutually support, are favorable to improving the connection stability of regulating part and external connection.

Optionally, the through hole has been seted up to the coaxial in the outer joint, the ladder groove has been seted up to the one end of outer joint, the ladder groove with the through hole intercommunication, the one end of nipple is inserted and is established in the ladder groove and adaptation the shape setting of ladder groove, the body be close to the one end of nipple with the through hole intercommunication.

Through adopting above-mentioned technical scheme, the setting of ladder groove has reduced to a certain extent when carrying liquid, and the liquid that is carried takes place the possibility of leaking from the junction of outer joint and nipple.

Optionally, a sealing ring is arranged between the inner wall of the step groove and the circumferential outer wall of the inner joint.

By adopting the technical scheme, the possibility of leakage of liquid is further reduced by the arrangement of the sealing ring.

Optionally, the outer joint is internally provided with a rotating groove along the circumferential direction, the rotating groove is communicated with the stepped groove, the circumferential outer wall of the inner joint is provided with a limiting ring, and the limiting ring is slidably inserted into the rotating groove.

Through adopting above-mentioned technical scheme, the spacing ring slides and inserts and establish in the annular, is convenient for on the one hand make the inner joint and the outer joint stable relative rotation that takes place, on the other hand is favorable to reducing the possibility that inner joint and outer joint take place to break away from.

Optionally, a flow blocking piece is arranged in the through hole and is used for preventing liquid from flowing back.

By adopting the technical scheme, the possibility of liquid countercurrent is reduced to a certain extent by arranging the flow blocking piece.

Optionally, the spoiler comprises a spoiler and a floating plate, the spoiler is arranged in the through hole, a through groove is formed in the spoiler, a guide rod is arranged on the floating plate, the guide rod is slidably arranged on the spoiler, and the floating plate is used for blocking the through groove.

Through adopting above-mentioned technical scheme, when liquid forward flow, liquid can promote the floating plate to the direction removal of keeping away from the spoiler for floating plate and spoiler interval set up, so that liquid flow through the groove. When the liquid flows reversely, the liquid pushes the floating plate to move towards the direction close to the flow blocking plate, so that the floating plate is abutted against the flow blocking plate, the through groove is blocked by the floating plate, the possibility that the liquid flows through the through groove is reduced, and the possibility that the liquid flows reversely is reduced.

Optionally, the guide bar is kept away from the one end of floating plate is provided with spacing arch, spacing arch be used for with the spoiler deviates from one side of floating plate is contradicted.

Through adopting above-mentioned technical scheme, spacing bellied setting for the guide bar is difficult for separating with the spoiler, thereby is convenient for utilize the guide bar to stabilize to lead to the floating plate, and then is favorable to reducing the floating plate and takes place the skew, leads to the floating plate unable possibility to carry out the shutoff to logical groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the mutual matching of the outer joint, the inner joint and the adjusting piece, when the pipe body is twisted, the pipe body can be twisted by rotating the inner joint, so that the pipe body is prevented from being deformed, and the possibility of reducing the tightness between the pipe body and the inner joint when the pipe body is twisted is reduced;

2. through the mutual matching of the outer joint, the inner joint, the adjusting piece, the first limiting block and the second limiting block, the adjusting piece can drive the first limiting block to move between the limiting groove and the annular groove so as to control the outer joint and the inner joint to mutually rotate or mutually fix;

3. through the mutual matching of the adjusting piece, the first limiting block, the second limiting block and the elastic piece, the trend of mutual approaching between the outer joint and the inner joint can be realized, so that the possibility of detachment of the outer joint and the inner joint is reduced;

4. through the mutual cooperation of the flow blocking plate, the floating plate and the guide rod, when the liquid flows reversely, the floating plate can seal the through groove on the flow blocking plate so as to reduce the possibility that the liquid flows through the through groove, thereby being beneficial to reducing the possibility that the liquid flows reversely.

Drawings

Fig. 1 is a schematic view of the overall structure of a single-use pressure extension tube according to an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along line A-A of fig. 1.

Fig. 3 is a partial enlarged view at B in fig. 2.

FIG. 4 is a schematic view of a structure of a spoiler in an embodiment of the application.

Reference numerals illustrate:

1. a tube body; 2. a first joint; 21. an outer joint; 211. a through hole; 212. a stepped groove; 213. a rotary groove; 214. a seal ring; 215. a ring groove; 216. a limit groove; 22. an inner joint; 221. a limiting ring; 222. a chute; 223. an elastic member; 23. an adjusting member; 231. a first limiting block; 232. a second limiting block; 3. a second joint; 4. a flow blocking member; 41. a spoiler; 411. a through groove; 42. a floating plate; 421. a guide rod; 422. and a limit protrusion.

Detailed Description

The present application is further described below in conjunction with FIGS. 1-4

The embodiment of the application discloses a disposable pressure extension tube.

It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1, the single-use pressure extension tube includes a tube body 1, a first connector 2, and a second connector 3. Wherein, the two ends of the tube body 1 are respectively communicated with the first joint 2 and the second joint 3, and the first joint 2 comprises an outer joint 21, an inner joint 22 and an adjusting piece 23. The outer joint 21 is rotatably connected with the inner joint 22 and coaxially arranged, the inner joint 22 is communicated with one end of the pipe body 1 far away from the second joint 3, the adjusting piece 23 is respectively and slidably connected with the outer joint 21 and the inner joint 22, and the adjusting piece 23 is used for controlling the outer joint 21 and the inner joint 22 to mutually rotate or mutually fix.

Referring to fig. 2 and 3, a through hole 211 is formed in the outer joint 21 in a penetrating manner along the axial direction thereof, a stepped groove 212 is formed at one end of the outer joint 21 adjacent to the inner joint 22, and the stepped groove 212 communicates with the through hole 211. The outer joint 21 is provided with a rotating groove 213 along the circumferential direction, the rotating groove 213 is communicated with the stepped groove 212, and the diameter of the rotating groove 213 is larger than that of the stepped groove 212.

Referring to fig. 3, one end of the inner joint 22 is slidably inserted into the stepped groove 212 and is adapted to the shape setting of the stepped groove 212, and a limit ring 221 is fixedly connected to the circumferential outer wall of the end of the inner joint 22 inserted into the stepped groove 212, and the limit ring 221 is slidably inserted into the rotating groove 213, so that the inner joint 22 and the outer joint 21 can be stably rotated, and the possibility of the inner joint 22 and the outer joint 21 being separated can be reduced.

When the inner joint 22 is communicated with the outer joint 21, one end of the pipe body 1 close to the inner joint 22 is communicated with the through hole 211, so that liquid flowing in the pipe body 1 can flow into the through hole 211 and flow out of the outer joint 21 from the through hole 211, and further transfusion by using the pressure extension pipe is facilitated.

In this embodiment, a seal 214 is filled between the inner wall of the stepped groove 212 and the circumferential outer wall of the inner joint 22, so that it is advantageous to reduce the possibility of leakage of the flowing liquid from the junction of the outer joint 21 and the inner joint 22 when the liquid flows in the pipe body 1 and the through hole 211.

Referring to fig. 1 and 3, a circumferential outer wall of the outer joint 21 is provided with a circumferential ring groove 215, and the circumferential outer wall of the outer joint 21 is also provided with a limit groove 216 along its axis direction. In this embodiment, a plurality of limiting grooves 216 are formed, the plurality of limiting grooves 216 are uniformly distributed around the axis of the outer joint 21, and the plurality of limiting grooves 216 are respectively communicated with the annular groove 215.

The circumferential outer wall of the nipple 22 is provided with sliding grooves 222 along the axis direction thereof, and in this embodiment, the number of the sliding grooves 222 is equal to the number of the limiting grooves 216.

Referring to fig. 3, in this embodiment, the cross section of the adjusting member 23 is provided in a ring shape. When the inner joint 22 is connected with the outer joint 21, the adjusting piece 23 is sleeved on the inner joint 22 and the outer joint 21 respectively. The two ends of the adjusting piece 23 are fixedly connected with a first limiting block 231 and a second limiting block 232 respectively, the first limiting block 231 is slidably inserted in the limiting groove 216 and is attached to the inner wall of the limiting groove 216, and the second limiting block 232 is slidably inserted in the sliding groove 222 and is attached to the inner wall of the sliding groove 222.

In this embodiment, the number of the first limiting blocks 231 is equal to and corresponding to the number of the limiting slots 216, and the number of the second limiting blocks 232 is equal to and corresponding to the number of the sliding slots 222.

Referring to fig. 3, when the pipe 1 needs to be twisted, the adjusting member 23 is moved, and the adjusting member 23 drives the first limiting block 231 and the second limiting block 232 to move, so that the first limiting block 231 is separated from the limiting groove 216 and inserted into the first ring groove 215. At this time, the outer joint 21 and the inner joint 22 can rotate relatively, so that the inner joint 22 can drive the pipe body 1 to rotate, and the pipe body 1 is twisted.

When the twisting of the pipe body 1 is not required, the adjusting member 23 is moved so that the first stopper 231 is inserted into the stopper groove 216. At this time, the adjusting member 23, the first limiting block 231 and the second limiting block 232 are mutually matched to limit the outer joint 21 and the inner joint 22, so that the outer joint 21 and the inner joint 22 are not easy to rotate relatively, the possibility that the inner joint 22 is driven by the pipe body 1 to rotate is reduced, the inner joint 22 can play a certain limiting role on the pipe body 1, and the possibility that the pipe body 1 is deformed in torsion is reduced.

Referring to fig. 3, an elastic member 223 is disposed in each sliding slot 222, the elastic member 223 is fixedly connected with the inner wall of the sliding slot 222 and the second limiting block 232, and the elastic member 223 is located at one side of the second limiting block 232 close to the first limiting block 231. In this embodiment, the elastic member 223 is a spring.

The elastic piece 223 can push the second limiting block 232 to move, and the second limiting block drives the first limiting block 231 to move through the adjusting piece 23, so that the first limiting block 231 can be abutted against the inner wall of the end, far away from the first annular groove 215, of the limiting groove 216. At this time, the first stopper 231 applies pressure to the outer joint 21 to drive the outer joint 21 to move in a direction approaching the inner joint 22, so that there is a tendency of approaching each other between the outer joint 21 and the inner joint 22, and thus the possibility of detachment of the outer joint 21 and the inner joint 22 is reduced.

Referring to fig. 3 and 4, a choke piece 4 is provided in the through hole 211, and the choke piece 4 includes a choke plate 41 and a floating plate 42. Wherein the spoiler 41 is disposed to fit the shape of the through hole 211, and the spoiler 41 is disposed within the through hole 211 and disposed adjacent to the stepped groove 212. The baffle 41 is provided with a through slot 411 to facilitate the liquid in the through hole 211 to flow through the baffle 41.

The shape of the floating plate 42 is adapted to the shape design of the through slot 411, and a guide rod 421 is fixedly connected to the floating plate 42, and one end of the guide rod 421 away from the floating plate 42 is slidably connected to the spoiler 41, so that the floating plate 42 can stably move relative to the spoiler 41.

The direction in which the liquid in the tube body 1 flows into the through hole 211 is defined as a forward flow, and the direction in which the liquid in the through hole 211 flows into the tube body 1 is defined as a reverse flow.

When the liquid flows forward, the liquid pushes the floating plate 42 to move away from the spoiler 41, so that the floating plate 42 and the spoiler 41 are spaced apart from each other. At this time, the floating plate 42 does not block the through-slot 411, thereby facilitating the flow of liquid through the through-slot 411.

When the liquid flows reversely, the liquid pushes the floating plate 42 to move in a direction approaching the spoiler 41, so that the floating plate 42 collides with the spoiler 41. At this time, the floating plate 42 seals the through slot 411 so that the liquid cannot flow through the through slot 411, thereby being beneficial to reducing the possibility of the liquid flowing backward.

Referring to fig. 4, a limiting protrusion 422 is fixedly coupled to an end of the guide bar 421 remote from the floating plate 42. When the floating plate 42 and the spoiler 41 are spaced apart from each other, the limiting protrusion 422 can abut against one side of the spoiler 41 away from the floating plate 42, so that the guide rod 421 is not easy to separate from the spoiler 41, and the floating plate 42 is conveniently and stably guided by the guide rod 421, so that the possibility that the floating plate 42 cannot block the through slot 411 due to the offset of the floating plate 42 is reduced.

The implementation principle of the disposable pressure extension tube provided by the embodiment of the application is as follows: when the pipe body 1 is twisted, the adjusting member 23 is moved, so that the adjusting member 23 moves in a direction approaching to the outer joint 21, and the adjusting member 23 drives the first limiting block 231 and the second limiting block 232 to move respectively, so that the first limiting block 231 is separated from the limiting groove 216 and inserted into the first ring groove 215. The nipple 22 is rotated again, and the nipple 22 rotates the pipe body 1 to twist the pipe body 1. At this time, the elastic member 223 is compressed.

Then, the adjusting member 23 is moved again, so that the first limiting block 231 is inserted into the limiting groove 216. At this time, the elastic member 223 stretches to drive the second limiting block 232, the adjusting member 23 and the first limiting block 231 to return to the original position.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a disposable pressure extension pipe, includes body (1), first joint (2) and second joint (3), the both ends of body (1) respectively with first joint (2) with second joint (3) intercommunication, its characterized in that: the first joint (2) comprises an outer joint (21), an inner joint (22) and an adjusting piece (23), wherein the outer joint (21) is rotationally connected with the inner joint (22) and coaxially arranged, the inner joint (22) is communicated with one end, far away from the second joint (3), of the pipe body (1), the adjusting piece (23) is respectively connected with the outer joint (21) and the inner joint (22) in a sliding mode, and the adjusting piece (23) is used for controlling the outer joint (21) and the inner joint (22) to rotate or fix each other.

2. The single use pressure extension tube of claim 1, wherein: annular groove (215) have been seted up along circumference on the circumference outer wall of outer joint (21), spacing groove (216) have been seted up along self axis direction on the circumference outer wall of outer joint (21), spacing groove (216) with annular groove (215) intercommunication, spout (222) have been seted up along self axis direction on the circumference outer wall of nipple (22), the both ends of regulating part (23) are provided with first stopper (231) and second stopper (232) respectively, first stopper (231) slip is inserted in spacing groove (216), second stopper (232) slip is inserted in spout (222).

3. The single use pressure extension tube of claim 2, wherein: an elastic piece (223) is arranged in the sliding groove (222), the elastic piece (223) is respectively connected with the inner wall of the sliding groove (222) and the second limiting block (232), and the elastic piece (223) is positioned on one side, close to the first limiting block (231), of the second limiting block (232).

4. The single use pressure extension tube of claim 2, wherein: the limiting grooves (216) are formed in a plurality, the limiting grooves (216) are uniformly distributed around the axis of the outer joint (21), and the number of the first limiting blocks (231) is equal to the number of the limiting grooves (216) and is in one-to-one correspondence with the limiting grooves (216).

5. The single use pressure extension tube of claim 1, wherein: the outer joint (21) is internally and coaxially provided with a through hole (211), one end of the outer joint (21) is provided with a stepped groove (212), the stepped groove (212) is communicated with the through hole (211), one end of the inner joint (22) is inserted into the stepped groove (212) and is adapted to the shape setting of the stepped groove (212), and the pipe body (1) is close to one end of the inner joint (22) and is communicated with the through hole (211).

6. The single use pressure extension tube of claim 5, wherein: a sealing ring (214) is arranged between the inner wall of the stepped groove (212) and the circumferential outer wall of the inner joint (22).

7. The single use pressure extension tube of claim 5, wherein: the outer joint (21) is internally provided with a rotary groove (213) along the circumferential direction, the rotary groove (213) is communicated with the stepped groove (212), the circumferential outer wall of the inner joint (22) is provided with a limiting ring (221), and the limiting ring (221) is slidably inserted into the rotary groove (213).

8. The single use pressure extension tube of claim 5, wherein: a flow blocking piece (4) is arranged in the through hole (211), and the flow blocking piece (4) is used for preventing liquid from flowing back.

9. The single use pressure extension tube of claim 8, wherein: the air blocking piece (4) comprises an air blocking plate (41) and a floating plate (42), wherein the air blocking plate (41) is arranged in the through hole (211), a through groove (411) is formed in the air blocking plate (41), a guide rod (421) is arranged on the floating plate (42), the guide rod (421) is slidably arranged on the air blocking plate (41), and the floating plate (42) is used for blocking the through groove (411).

10. The single use pressure extension tube of claim 9, wherein: one end of the guide rod (421) far away from the floating plate (42) is provided with a limiting protrusion (422), and the limiting protrusion (422) is used for abutting against one side of the spoiler (41) away from the floating plate (42).