CN216022348U

CN216022348U - A lead wire mounting structure and drainage catheter for drainage catheter

Info

Publication number: CN216022348U
Application number: CN202121824342.7U
Authority: CN
Inventors: 李坤; 王沁; 王宝中; 朱瑜; 顾伟
Original assignee: Suzhou Leapmed Healthcare Corp
Current assignee: Suzhou Leapmed Healthcare Corp
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-03-15
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to the technical field of medical instruments, in particular to a lead mounting structure for a drainage catheter and the drainage catheter, wherein the lead mounting structure comprises a catheter handle, and the catheter handle comprises a through hole for communicating with the catheter; the side wall of the catheter handle is provided with a through hole for the lead to pass through, and the free end and the fixed end of the lead pass through the catheter handle through the through hole and are connected with the outer wall of the catheter handle; the outer wall of pipe handle is equipped with first recess, and a pair of relative lateral wall of first recess is equipped with first perforation and second perforation respectively for the stiff end that makes the lead wire is used for passing first perforation and second perforation in proper order, thereby makes the unsettled notch department that sets up at first recess of lead wire part. According to the technical scheme provided by the utility model, the operations of cutting off the lead and pulling out the drainage catheter can be completed quickly, and the operation is simple, quick, safe and reliable.

Description

A lead wire mounting structure and drainage catheter for drainage catheter

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a lead mounting structure for a drainage catheter and the drainage catheter.

Background

The drainage catheter is a medical apparatus for clinical surgical drainage, which can guide pus, blood and liquid accumulated in human tissues or body cavities to the outside of the body so as to prevent postoperative infection and promote wound healing. The clinical surgical drainage tube has wide application, some drainage tubes are used for catheterization, some drainage tubes are used for wounds, and the drainage tubes are used for thoracic cavities, brain cavities, gastrointestinal tracts, biliary tracts and the like.

In order to fix the drainage catheter in the human body and prevent the drainage catheter from being pulled out by external force, the tip of the drainage catheter is usually provided with a positioning structure. The current commonly used positioning structure is: after the tip enters the cavity of a patient, the tip of the drainage tube is bent into a 'pigtail' shape by a lead which passes through the handle end, namely the width of the tip of the drainage tube is increased, and the drainage tube is not easy to pull out from a penetrating hole of the drainage tube, so that the drainage tube is positioned in a human body. Wherein, the both ends of lead wire are exposed outside after passing through a rubber pad of handle end to the operation of taut convenience, and the not hard up of lead wire can be prevented to the frictional force between rubber pad and the lead wire. When the drainage catheter needs to be detached, the lead is cut off, and after the pulling force of the lead is eliminated, the tip of the drainage catheter automatically returns to be straight, so that the drainage catheter can be taken out.

After the part needing to be cut on the lead is positioned on the rubber pad, because the two leads are relatively close, one of the two leads can be cut off after the two leads are separated, so that the operation of cutting the lead is relatively complicated; alternatively, an operation of cutting the catheter and the lead wire together may be adopted, and although the operation is simple, there may be a problem that the liquid in the drainage tube flows out to contaminate the wound.

In order to solve the problems, the existing drainage catheter is provided with a three-way joint at the handle end, and one joint of the three-way joint is independently provided with a lead. However, after the three-way joint is arranged, the volume of the handle end of the drainage catheter is larger, so that the drainage catheter is easy to touch and is easy to pull.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lead mounting structure for a drainage catheter and the drainage catheter.

In one aspect of the utility model, a lead mounting structure for a drainage catheter is provided, comprising a catheter handle including a bore for communicating with a catheter; the side wall of the catheter handle is provided with a through hole for the lead to pass through, so that the free end and the fixed end of the lead pass through the catheter handle through the through hole and are connected with the outer wall of the catheter handle; the outer wall of pipe handle is equipped with first recess, and a pair of relative lateral wall of first recess is equipped with first perforation and second perforation respectively for the stiff end that makes the lead wire is used for passing first perforation and second perforation in proper order, thereby makes the unsettled notch department that sets up at first recess of lead wire part.

Optionally, a second groove is formed in the outer wall of the catheter handle, the side wall of the second groove protrudes out of the surface of the outer wall of the catheter handle, and a sealing cover is arranged on a notch of the second groove; the through hole is arranged at the bottom of the second groove, and the first groove is arranged on the surface of the sealing cover; the side wall of the second groove is provided with a leading-out hole, and the leading-out hole is used for enabling the free end of the leading wire to sequentially pass through the through hole and the leading-out hole to penetrate out of the catheter handle and be connected with the outer wall of the catheter handle; the first through hole is communicated with the second groove and used for enabling the fixed end of the lead to sequentially penetrate out of the catheter handle through the through hole and the first through hole.

Optionally, a space is arranged between the side wall of the sealing cover and the side wall of the second groove, so that a cavity is formed; the chamber is used for enabling the fixed end of the lead to be arranged in the chamber and fixedly connected with the inner wall of the chamber.

Optionally, the lead frame further comprises a sealing gasket, the sealing gasket is filled in the second groove, and the sealing gasket is provided with a hole for allowing the free end and the fixed end of the lead to penetrate through.

Optionally, the sealing cover is detachably connected with the second groove through a locking structure.

Optionally, the locking structure comprises a locking hole and a locking hook, and the locking hole is detachably connected with the locking hook; the lateral wall of sealed lid is located to the lockhole, and the lateral wall of second recess is located to the latch hook, and perhaps, the lateral wall of sealed lid is located to the latch hook, and the lateral wall of second recess is located to the lockhole.

Optionally, the device further comprises a wire clamping ring sleeved on the catheter handle; the wire clamping ring is provided with a connecting hole for connecting the free end of the lead wire with the wire clamping ring through the connecting hole.

Optionally, a notch is arranged on the wire clamping ring, and the wire clamping ring is detachably connected with the catheter handle through the notch.

Optionally, the two free ends of the wire clamping ring are respectively provided with a clamping hook, the catheter handle is cylindrical, and the outer wall of the catheter handle is provided with a plurality of buckles at intervals along the circumferential direction; the hook is detachably connected with the buckle, and the hook is connected with the buckles at different positions to enable the wire clamping ring and the catheter handle to form different connection angles.

Optionally, a handle is arranged on the wire clamping ring.

In another aspect of the present invention, there is also provided a drainage catheter comprising a catheter, a lead and the above-described lead mounting structure for a drainage catheter.

According to the technical scheme provided by the utility model, the fixed end of the lead is arranged on the notch of the first groove in a suspending way, so that the fixed end and the free end of the lead can be separated, meanwhile, the fixed end of the lead is arranged in a suspending way, and when the lead needs to be cut, the scissors are inserted into the first groove to cut the lead. The lead mounting structure can rapidly complete the operations of cutting off the lead and pulling out the drainage catheter, and has simple and rapid operation, safety and reliability.

Drawings

For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention;

FIG. 2 is an exploded view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the gasket of FIG. 3;

fig. 5 is a schematic structural view of a drainage catheter provided in an embodiment of the present invention.

In the figure:

1: a catheter handle; 2: a lead wire; 3: a wire clamping ring; 4: a conduit;

11: perforating; 12: a through hole; 13: a first groove; 14: a first perforation; 15: a second perforation; 16: a second groove; 161: a lead-out hole; 162: a latch hook; 17: a sealing cover; 171: a lock hole; 18: a chamber; 19: a gasket;

21: a free end; 22: a fixed end;

31: connecting holes; 32: a notch; 33: a hook; 34: buckling; 35: a handle.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present application. For the sake of brevity, the same or similar reference numerals are used for the same or similar apparatus/method steps in the description of the various embodiments of the present application.

In addition, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

FIG. 1 is a schematic structural view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention; FIG. 2 is an exploded view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention; FIG. 3 is a cross-sectional view of a lead mounting structure for a drainage catheter provided by an embodiment of the present invention; fig. 4 is a partially enlarged view of the gasket of fig. 3. As shown in fig. 1 to 4, the lead mounting structure includes a catheter handle 1, the catheter handle 1 including a through hole 11 for communicating with the catheter 4; the side wall of the catheter handle 1 is provided with a through hole 12 for the lead wire 2 to pass through, so that the free end 21 and the fixed end 22 of the lead wire 2 pass through the catheter handle 1 through the through hole 12 and are connected with the outer wall of the catheter handle 1; the outer wall of the catheter handle 1 is provided with a first groove 13, a pair of opposite side walls of the first groove 13 are respectively provided with a first perforation 14 and a second perforation 15, and a fixed end 22 of the lead 2 is used for sequentially passing through the first perforation 14 and the second perforation 15, so that the lead 2 is partially suspended at the notch of the first groove 13.

When the drainage catheter is used, the end part of the catheter 4 is tightened and bent by using the free end 21 of the lead 2, the fixed end 22 of the lead 2 is always kept in a fixed state, and when a cutting operation (straightening back of the catheter 4) is required, the fixed end 22 of the lead 2 is cut. In the embodiment of the present invention, the fixed end 22 of the lead 2 is partially laid across the first groove 13, and the portion is suspended, and when the cutting operation is required, the suspended portion of the lead 2 is cut. The suspended part has sufficient reserved space and is arranged separately from the free end 21 of the lead 2, and when in operation, the scissors are inserted into the first groove 13 to cut the lead 2.

As shown in fig. 1 to 4, in the embodiment of the present invention, a second groove 16 is formed on an outer wall of a catheter handle 1, a side wall of the second groove protrudes from an outer wall surface of the catheter handle 1, and a sealing cover 17 is arranged on a notch of the second groove 16; the through hole 12 is arranged at the bottom of the second groove 16, and the first groove 13 is arranged on the surface of the sealing cover 17; the side wall of the second groove 16 is provided with a leading-out hole 161, which is used for enabling the free end 21 of the lead wire 2 to sequentially pass through the through hole 12 and the leading-out hole 161 to penetrate out of the catheter handle 1 and be connected with the outer wall of the catheter handle 1; the first through hole 14 communicates with the second recess 16 for passing the fixed end 22 of the lead wire 2 out of the catheter handle 1 through the through hole 12 and the first through hole 14 in this order. The through hole 12 is blocked by the sealing cover 17 and the second groove 16, and the sealing arrangement of the through hole 12 is realized. Preferably, the second groove 16 is filled with a sealing gasket 19, and the through hole 12 is further sealed by the sealing gasket 19, so as to ensure the sealing effect of the through hole 12, wherein the sealing gasket 19 has a hole for allowing the free end 21 and the fixed end 22 of the lead 2 to pass through, and the sealing gasket 19 is made of a material having a certain elasticity, such as rubber, so that even if the free end 21 and the fixed end 22 of the lead 2 pass through the sealing gasket 19, the sealing gasket 19 can press the hole of the lead under the resilience of the material, so that the sealing gasket 19 is still in a closed state.

In the embodiment of the present invention, a space is provided between the side wall of the sealing cover 17 and the side wall of the second groove 16, thereby forming a chamber 18; the chamber 18 is used for disposing the fixed end 22 of the lead 2 in the chamber 18 and fixedly connecting with the inner wall of the chamber 18. As a more preferable embodiment, the fixed end 22 of the lead wire 2 is disposed on the outer wall of the second groove 16, and the fixed end 22 of the lead wire 2 is disposed on the second groove 16 in such a manner that the opening and closing of the sealing cap 17 are not affected.

In the embodiment of the present invention, the sealing cover 17 is detachably coupled to the second groove 16 by a locking structure. As shown in fig. 1 and 2, the locking structure includes a locking hole 171 and a locking hook 162, and the locking hole 171 and the locking hook 162 are detachably connected; the locking hole 171 is disposed on a side wall of the sealing cover 17, and the locking hook 162 is disposed on a side wall of the second groove 16, or the locking hook 162 is disposed on a side wall of the sealing cover 17, and the locking hole 171 is disposed on a side wall of the second groove 16. The provision of the sealing cap 17 as a detachable structure facilitates the handling of the lead wire 2.

As shown in fig. 1 and 2, the lead wire mounting structure further includes a wire retaining ring 3 for fitting over the catheter handle 1; the wire-clamping ring 3 is provided with a connecting hole 31 for connecting the free end 21 of the lead wire 2 with the wire-clamping ring 3 through the connecting hole 31. The wire clamping ring 3 is used for tightening or loosening the lead wire 2, for example, when tightening, stretching and bending are carried out, the wire clamping ring 3 is pulled or rotated, the wire clamping ring 3 drives the free end 21 of the lead wire 2 to move, the lead wire 2 tensions the end part of the catheter 4, and after the end part reaches a designated position, the wire clamping ring 3 is fixed.

As a preferred embodiment of the utility model, the catheter handle 1 is cylindrical, the wire clamping ring 3 is provided with a notch 32, and the wire clamping ring 3 is detachably connected with the catheter handle 1 through the notch 32. When the lead wire 2 is tightened or loosened, the wire retaining ring 3 is rotated on the catheter handle 1. Preferably, the two free ends 21 of the wire clamping ring 3 are respectively provided with a clamping hook 33, and the outer wall of the catheter handle 1 is provided with a plurality of buckles 34 at intervals along the circumferential direction; the hook 33 is detachably connected with the buckle 34, and the hook 33 is connected with the buckles 34 at different positions to enable the wire clamping ring 3 and the catheter handle 1 to form different connection angles, and by arranging the structures of the hook 33 and the buckle 34, when the wire clamping ring 3 rotates by a corresponding angle and needs to be fixed, the hook 33 on the wire clamping ring 3 is clamped with the buckle 34 at a corresponding position.

As shown in fig. 1 to 4, the grip ring 3 is provided with a handle 35, the handle 35 is in a circular cake shape, and when the grip ring 3 is operated, the handle 35 is held by hand to perform corresponding operation.

In the embodiment of the utility model, the fixed end 22 of the lead 2 is suspended on the notch of the first groove 13, the fixed end 22 and the free end 21 of the lead 2 can be separated, meanwhile, the fixed end 22 of the lead 2 is suspended, and when the cutting operation is needed, scissors are inserted into the first groove 13 to cut the lead 2. The lead mounting structure can rapidly complete the operations of cutting the lead 2 and pulling out the drainage catheter, and has simple and rapid operation, safety and reliability.

Fig. 5 is a schematic structural view of a drainage catheter provided in an embodiment of the present invention. As shown in fig. 5, the drainage catheter includes the catheter 4, the lead wire 2, and the lead wire mounting structure in the above embodiment. The lead wire 2 is arranged in the through hole 11 of the catheter 4 and the catheter handle 1, the lead wire 2 is one or two, the lead wire 2 positioned in the lead wire is fixedly connected with the front end of the catheter 4, the lead wire 2 positioned in the through hole 11 comprises two ends, one is a free end 21 of the lead wire 2, the other is a fixed end 22 of the lead wire 2, when the end of the catheter 4 needs to be bent, the free end 21 of the lead wire 2 is tensioned, the end part of the catheter 4 is tightened and bent, when the catheter 4 is straightened, the fixed end 22 of the lead wire 2 is cut off, after the tension of the lead wire 2 is eliminated, the catheter 4 is restored to be in a straight tube shape, and the catheter 4 is taken out.

In the embodiment of the utility model, the free end 21 and the fixed end 22 of the lead 2 are separated, and the fixed end 22 is partially arranged on the first groove, so that the lead is convenient to cut off, simple and rapid to operate, safe and reliable.

The above-described embodiments should not be construed as limiting the scope of the utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead mounting structure for a drainage catheter, characterized by comprising a catheter handle (1), the catheter handle (1) comprising a through hole (11) for communicating with a catheter (4);

the side wall of the catheter handle (1) is provided with a through hole (12) for the lead (2) to penetrate out, so that the free end (21) and the fixed end (22) of the lead (2) penetrate out of the catheter handle (1) through the through hole (12) and are connected with the outer wall of the catheter handle (1);

the outer wall of pipe handle (1) is equipped with first recess (13), and a set of relative lateral wall of first recess (13) is equipped with first perforation (14) and second perforation (15) respectively for make stiff end (22) of lead wire (2) be used for passing first perforation (14) and second perforation (15) in proper order, thereby make lead wire (2) part unsettled set up in the notch department of first recess (13).

2. The lead mounting structure for a drainage catheter according to claim 1, wherein the outer wall of the catheter handle (1) is provided with a second groove (16), the side wall of the second groove protrudes from the outer wall surface of the catheter handle (1), and a sealing cover (17) is provided on the notch of the second groove (16);

the through hole (12) is arranged at the bottom of the second groove (16), and the first groove (13) is arranged on the surface of the sealing cover (17);

the side wall of the second groove (16) is provided with a leading-out hole (161) for leading the free end (21) of the lead wire (2) to sequentially pass through the through hole (12) and the leading-out hole (161) to penetrate out of the catheter handle (1) and be connected with the outer wall of the catheter handle (1);

the first through hole (14) is communicated with the second groove (17) and is used for enabling the fixed end (22) of the lead wire (2) to sequentially pass through the through hole (12) and the first through hole (14) and pass out of the catheter handle (1).

3. The lead mounting structure for a drainage catheter according to claim 2, wherein a space is provided between a side wall of the sealing cover (17) and a side wall of the second groove (16) to form a chamber (18);

the chamber (18) is used for enabling the fixed end (22) of the lead (2) to be arranged in the chamber (18) and fixedly connected with the inner wall of the chamber (18).

4. The lead mounting structure for a drainage catheter according to claim 2, further comprising a gasket (19), the gasket (19) being filled in the second groove (16), the gasket (19) being provided with holes for passing through the free end (21) and the fixed end (22) of the lead (2).

5. The lead mounting structure for a drainage catheter according to any one of claims 2 to 4, wherein the sealing cap (17) is detachably connected to the second groove (16) by a locking structure.

6. The lead mounting structure for a drainage catheter of claim 5, wherein the locking structure comprises a locking hole (171) and a locking hook (162), the locking hole (171) and the locking hook (162) being detachably connected;

the lock hole (171) is arranged on the side wall of the sealing cover (17), the lock hook (162) is arranged on the side wall of the second groove (16),

alternatively, the first and second electrodes may be,

the lock hook (162) is arranged on the side wall of the sealing cover (17), and the lock hole (171) is arranged on the side wall of the second groove (16).

7. The lead mounting structure for a drainage catheter according to any one of claims 1 to 4, further comprising a clip ring (3) for fitting over the catheter handle (1);

the wire clamping ring (3) is provided with a connecting hole (31) for connecting the free end (21) of the lead (2) with the wire clamping ring (3) through the connecting hole (31).

8. The lead mounting structure for a drainage catheter according to claim 7, wherein the clip ring (3) is provided with a notch (32), and the clip ring (3) is detachably connected to the catheter handle (1) through the notch (32).

9. The lead mounting structure for a drainage catheter according to claim 8, wherein the two free ends of the wire-locking ring (3) are respectively provided with a hook (33), the catheter handle (1) is cylindrical, and the outer wall of the catheter handle (1) is provided with a plurality of hooks (34) at intervals in the circumferential direction;

the hook (33) is detachably connected with the buckle (34), and the connection of the hook (33) and the buckle (34) at different positions can lead the wire clamping ring (3) and the catheter handle (1) to form different connection angles.

10. The lead mounting structure for a drainage catheter according to claim 7, wherein a handle (35) is provided on the clip ring (3).

11. A drainage catheter characterized by comprising a catheter (4), a lead (2) and a lead mounting structure for a drainage catheter according to any one of claims 1 to 10.