CN217828465U

CN217828465U - Incision seals negative pressure drainage device

Info

Publication number: CN217828465U
Application number: CN202123106416.6U
Authority: CN
Inventors: 刘立峰; 方楠; 彭青; 武乐; 高硕�
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-11-18
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses an incision sealing negative pressure drainage device, which comprises a sponge dressing and a drainage tube device, wherein a round hole is arranged at the center of the sponge dressing, and the lower end of the drainage tube device is arranged in a closed incision after an operation after passing through the round hole; the drainage tube device comprises a head, a neck and a tail, the neck is connected with the lower end of the head, a middle drainage hole is formed in the middle of the head and is of a bucket-shaped structure, the tail is connected with the bottom of the neck, a central drainage channel is formed in the middle of the neck and the tail, the top of the central drainage channel is communicated with the middle drainage hole, a drainage groove is formed in the outer surface of the tail, a side drainage hole is formed in the drainage groove, and the side drainage hole is communicated with the central drainage channel. The device can solve the drainage problem of operation incision, can improve the blood circulation of operation incision again, reduces the incision scar, promotes soft tissue detumescence and incision healing, avoids the postoperative incision to change dressings, reduces the incision infection, avoids the drainage tube to need additionally put the hole.

Description

Incision seals negative pressure drainage device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to incision seals negative pressure drainage device.

Background

Vacuum Sealing Drainage (VSD) was first proposed in 1992 by doctor Fleischmann in Germany, in which medical sponge foam is applied to the wound and then sealed with a medical film, and a Drainage tube is connected to the outside of the wound and connected to a negative pressure source, so that a constant negative pressure is maintained and the exudate in the wound can be sucked out. Two researchers in north america, morykwas and argentia, 1997, first elucidated the mechanism of action of VSDs in paper form, mainly from several aspects: 1. increasing blood perfusion at the incision application and improving local blood supply; 2. the generation of granulation tissues is accelerated; 3. the number of bacteria at the wound is reduced, and the infection probability is reduced; 4. increasing the survival rate of random skin flaps. After 1994 professor Cuachusetts is introduced into China, VSD technology is developed in nearly 30 years and widely applied to general surgery, burn departments and traumatic orthopedics. Briefly, VSD is currently used primarily in the "wound" of complex soft tissue defects and open fractures, rather than "surgical incisions," to provide time for later stage flap transplantation or the next procedure.

With the development of society, traffic accidents are more and more, so that fracture patients and patients who need internal fixation operation of incision reduction are increased. However, due to the selection of the operation time and the characteristics of the fracture part itself, more and more patients are confronted with necrosis, nonunion or infection of the skin soft tissue of the operation incision part after the fracture operation, especially the lower limb fracture and the foot fracture (such as calcaneus). Meanwhile, the development of orthopedic theory from AO to BO (AO means strong internal fixation emphasizes continuity of fracture anatomy and mechanical integrity in early recovery, BO means biological fixation emphasizes fracture treatment concept mainly based on biology for mainly maintaining local soft tissue blood circulation), and also makes people pay more attention to the problem of protecting soft tissue blood circulation. In response to the above problems, there are foreign scholars attempting to apply VSD technology to surgical incisions after fracture surgery, showing that the incidence of postoperative incision complications in patients is significantly reduced.

However, the conventional VSD device is applied to a closed incision of a fracture operation, and also faces some problems because VSDs on the market are mostly used for open wounds and wounds which are temporarily difficult to close, and foam dressings can only be externally arranged on superficial wounds, wherein various drainage tubes are arranged, but are only limited to be internally or externally arranged relative to the foam dressings, because the fracture operation part is often deep, the effusion and the blood in the deep soft tissues after suturing often need to be provided with longer drainage tubes, and the effusion and the drainage are insufficient for the closed incision of the superficial foam dressings, so that the dressings become dry and hard too early or the drainage tubes are blocked, and the operation incision still faces the risks of complications such as postoperative infection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an incision seals negative pressure drainage device to solve the problem of mentioning in the background art. In order to achieve the above purpose, the utility model provides a following technical scheme: an incision sealing negative pressure drainage device comprises a sponge dressing and a drainage tube device, wherein a round hole is formed in the center of the sponge dressing, and the lower end of the drainage tube device penetrates through the round hole and is placed into a closed incision after an operation;

the drainage tube device comprises a head, a neck and a tail, the neck is connected to the lower end of the head, a middle drainage hole is formed in the middle of the head and is of a bucket-shaped structure, the top opening diameter of the middle drainage hole is larger than the bottom opening diameter, the tail is connected to the bottom of the neck, a central drainage channel is formed in the middle of the neck and the middle of the tail, the top of the central drainage channel is communicated with the middle drainage hole, a drainage groove is formed in the outer surface of the tail, a side drainage hole is formed in the drainage groove, and the side drainage hole is communicated with the central drainage channel.

Preferably, the head is provided with external drainage holes, the external drainage holes are of a through hole structure, and the number of the external drainage holes is 5, and the external drainage holes are uniformly distributed along the circumference of the middle drainage hole.

Preferably, the drainage groove is equipped with 5, 5 drainage groove along afterbody circumference evenly distributed, and 5 outside drainage hole dislocation distribution in the drainage groove.

Preferably, a line groove is formed between the edge of the sponge dressing and the round hole.

Preferably, the lower end of the middle drainage hole extends to the top of the neck, the diameter of the bottom opening of the middle drainage hole is the same as that of the central drainage channel, and the middle drainage hole and the central drainage channel are connected in an aligned mode.

Preferably, the head, the neck and the tail of the drainage tube device are of an integral structure.

Preferably, the head is 2mm long, the neck is 20mm long, and the tail is 40cm long.

The utility model discloses a technological effect and advantage:

1. according to the spliced incision sealing negative pressure drainage device, the neck and the tail of the drainage tube device are arranged in the incision, so that the deep effusion can be fully drained, the problem that the deep drainage is insufficient when the drainage tube of the VSD device is limited in dressing is solved, postoperative infection can be better reduced, blood circulation can be improved, and incision healing is accelerated; the design of a plurality of drainage holes and drainage grooves at the tail part of the drainage tube device can ensure that accumulated liquid is drained sufficiently to the greatest extent, soft tissue compression or seepage thickening caused by small volume in the incision can be avoided, and the design of the long structure at the tail part can be properly trimmed according to the incision part, so that the drainage tube device is wide in applicability; the head, the neck and the tail are integrally formed, so that even if an incision is sutured in the skin, the condition that the drainage tube is broken and left in the body is avoided; the middle drainage hole of the head part is of a bucket-shaped structure, so that the blockage of a drainage port is avoided;

2. the device only has a drainage tube in the center, and the other parts are sponge dressings, so that the problems that certain VSD drainage tubes are designed to be distributed in the sponge, the skin is pressed due to long suction time and the like are avoided due to mutual independence;

3. the device can solve the drainage problem of the operation incision, can improve the blood circulation of the operation incision, reduce the scar of the incision, promote the detumescence of soft tissues and the healing of the incision, avoid the dressing change of the operation incision, reduce the infection of the incision and avoid the need of additionally arranging a hole on the drainage tube;

4. the tail part of the drainage tube device is provided with five drainage grooves, so that the drainage tube can be prevented from being concentrated in stress when being extruded by soft tissues, the drainage tube is deformed, the stress can be dispersed conveniently, and the blockage of the soft tissues can be avoided; the different cross sections of drainage groove are equipped with a drainage hole respectively, and every drainage groove has a plurality of drainage holes like this, and every drainage hole is not at the coplanar again, has both guaranteed the intensity of drainage tube, has guaranteed the drainage effect again, can make central drainage passageway's negative pressure pass to the drainage groove through outside drainage hole simultaneously, can guarantee that the incision deep portion is around the hydrops fully drawn forth, and drainage tube jam possibility significantly reduces simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the drainage tube device of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view of the head and neck of FIG. 2 taken along the direction B-B;

fig. 5 is a cross-section of the tail portion.

In the figure: 1-sponge dressing, 2-drainage tube device, 3-round hole, 4-head, 5-neck, 6-tail, 7-middle drainage hole, 8-central drainage channel, 9-drainage groove, 10-side drainage hole, 11-wire groove, 12-external drainage hole.

Detailed Description

In order to make the technical means, the creative features, the objectives and the functions of the present invention easily understood and appreciated, the present invention will be further described with reference to the specific drawings, and in the description of the present invention, unless otherwise specified or limited, the terms "mounted," connected "and" connected "should be understood broadly, and for example, the terms" fixed connection, "detachable connection," integral connection, mechanical connection, and electrical connection may be used; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

Example 1

The incision sealing negative pressure drainage device shown in fig. 1-5 comprises a sponge dressing 1 and a drainage tube device 2, wherein a circular hole 3 is formed in the center of the sponge dressing 1, and the lower end of the drainage tube device 2 is placed into a closed incision after an operation after penetrating through the circular hole 3;

the drainage tube device 2 comprises a head 4, a neck 5 and a tail 6, wherein the head 4 is 2mm in length, the neck 5 is 20mm in length, the tail 6 is 40cm in length, the lower end of the head 4 is connected with the neck 5, a middle drainage hole 7 is formed in the middle of the head 4, the middle drainage hole 7 is of a bucket-shaped structure, the diameter of the top opening of the middle drainage hole 7 is larger than that of the bottom opening, accumulated liquid at the top opening can be prevented from being blocked or gathering on the surface of the sponge dressing 1, the tail 6 is connected with the bottom of the neck 5, a central drainage channel 8 is formed in the middle of the neck 5 and the tail 6, the top of the central drainage channel 8 is communicated with the middle drainage hole 7, a drainage groove 9 is formed in the outer surface of the tail 6, a side drainage hole 10 is formed in the drainage groove 9, and the side drainage hole 10 is communicated with the central drainage channel 8.

Example 2

The incision sealing negative pressure drainage device shown in fig. 1-3 comprises a sponge dressing 1 and a drainage tube device 2, wherein the sponge dressing 1 is a cuboid with the length of 20cm, the width of 4cm and the thickness of 5mm, a circular hole 3 with the diameter of 6mm is formed in the center of the sponge dressing 1, the lower end of the drainage tube device 2 penetrates through the circular hole 3 and then is placed into a closed incision after an operation, a wire slot 11 is formed between the edge of the sponge dressing 1 and the circular hole 3, and the sponge dressing 1 can be conveniently lifted to place the drainage tube device 2;

the drainage tube device 2 comprises a head part 4, a neck part 5 and a tail part 6, the head part 4, the neck part 5 and the tail part 6 of the drainage tube device 2 are of an integral structure, the head part 4 is 2mm in length, the head part 4 is 11mm in diameter, the neck part 5 is 20mm in length, the neck part is of a cylindrical structure and 6mm in diameter, the tail part 6 is 40cm in length and 6mm in total diameter, the lower end of the head part 4 is connected with the neck part 5, a middle drainage hole 7 is formed in the middle of the head part 4, the middle drainage hole 7 is of a bucket-shaped structure, the lower end of the middle drainage hole 7 extends to the top of the neck part 5, the top opening diameter of the middle drainage hole 7 is 3mm, the bottom opening diameter is 2mm and the depth is 4mm, so that hydrops at the top opening can be prevented from being blocked or gathered on the surface of the sponge dressing 1, an external drainage hole 12 is formed in the head part 4, and the external drainage hole 12 is of a through hole structure with the diameter of 2mm, the number of the external drainage holes 12 is 5, the external drainage holes are uniformly distributed along the circumference of the middle drainage hole 7, when the drainage device is used, the external drainage holes 12 are communicated with the sponge dressing 1 to enable the sponge dressing 1 to form uniform negative pressure, the surface of the neck 5 is smooth, the bottom of the neck is connected with the tail 6, the middle parts of the neck 5 and the tail 6 are provided with a central drainage channel 8 with the diameter of 2mm, the bottom opening diameter of the middle drainage hole 7 is the same as the diameter of the central drainage channel 8, the bottom opening diameter and the central drainage channel 8 are connected in an aligned mode to facilitate effusion dredging, the top of the central drainage channel 8 is communicated with the middle drainage hole 7, the outer surface of the tail 6 is provided with drainage grooves 9, the number of the drainage grooves 9 is 5, the groove depth is 1mm, the 5 drainage grooves 9 are uniformly distributed along the circumference of the tail 6, stress concentration when the drainage device 2 is extruded by soft tissues can be avoided, the drainage tube is prevented from deforming, and stress dispersion is facilitated, and can avoid the soft tissue to block up, it has side drainage hole 10 to open in drainage groove 9, side drainage hole 10 and central drainage channel 8 intercommunication, and the distribution of the dislocation of outside drainage hole 10 in 5 drainage grooves 9 all does not lie in same position face height, has both guaranteed drainage tube device 2's intensity, has guaranteed the drainage effect again, can make central drainage channel 8's negative pressure pass to in drainage groove 9 through outside drainage hole 10 simultaneously, can guarantee that the incision is abundant to be drawn forth around the deep portion hydrops, and drainage tube device 2 blocks up the possibility and significantly reduces simultaneously.

The utility model discloses process flow and theory of operation do: when the preparation suture is completed in the fracture operation, the tail part of the drainage tube device 2 is trimmed to a proper length and placed under a deep fascia in a incision, so that the neck part 5 is placed at the subcutaneous tissue layer, the tail part 6 is placed in the deep fascia, the incision is sutured layer by layer, the intradermal suture can be performed, after the suture is completed, a sponge dressing 1 is prepared, the round hole 3 is sleeved in the neck part 5 of the drainage tube device 2 through a wire groove 11 in the sponge dressing 1, the sponge dressing 1 and the incision form a closed environment after the transparent film is covered, then the transparent film opening is cut at the head part 4 of the drainage tube device 2, an external sucker is pasted, and the negative pressure suction collecting bottle and the negative pressure source are connected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an incision seals negative pressure drainage device, includes sponge dressing and drainage tube device, its characterized in that: a round hole is formed in the center of the sponge dressing, and the lower end of the drainage tube device penetrates through the round hole and is placed into the closed incision after the operation;

2. An incision closure negative pressure drainage device according to claim 1, wherein: the head is provided with external drainage holes, the external drainage holes are of a through hole structure, and the number of the external drainage holes is 5, and the external drainage holes are uniformly distributed along the circumference of the middle drainage hole.

3. An incision closure negative pressure drainage device according to claim 1, wherein: drainage groove is equipped with 5, 5 drainage groove is along afterbody circumference evenly distributed, and 5 outside drainage hole dislocation distribution in the drainage inslot.

4. An incision closure negative pressure drainage device according to claim 1, wherein: a wire groove is formed between the edge of the sponge dressing and the round hole.

5. An incision closure negative pressure drainage device according to claim 1, wherein: the lower extreme of middle drainage hole extends to the top of neck, the bottom opening diameter of middle drainage hole is the same with central drainage channel diameter, and both align to be connected.

6. An incision closure negative pressure drainage device according to claim 1, wherein: the head, the neck and the tail of the drainage tube device are of an integrated structure.

7. An incision closure negative pressure drainage device according to claim 6, wherein: the head length is 2mm, the neck length is 20mm, the tail length is 40cm.