CN223041910U

CN223041910U - A negative pressure drainage device for wound infection after orthopedic surgery

Info

Publication number: CN223041910U
Application number: CN202421866870.2U
Authority: CN
Inventors: 王莉丽; 徐达珍
Original assignee: Shanghai Sixth People's Hospital
Current assignee: Shanghai Sixth People's Hospital
Priority date: 2024-08-02
Filing date: 2024-08-02
Publication date: 2025-07-01
Anticipated expiration: 2034-08-02

Abstract

The utility model discloses a negative pressure drainage device for postoperative wound infection in orthopedics, comprising a negative pressure suction device, wherein a drainage tube is connected to the negative pressure suction device, and a suction cup is connected to the end of the drainage tube, and an operation tube coaxial with the suction cup is arranged on the side of one end of the drainage tube connected to the suction cup, and a sleeve which can move axially along the operation tube is arranged inside the operation tube, and a protruding fixed plate and a rotating plate are arranged at the front end of the sleeve, and a driving component which drives the rotating plate to rotate so that the fixed plate and the rotating plate are relatively clamped or opened is arranged on the sleeve, and by arranging the operation tube and the sleeve, the fixed plate and the rotating plate at the end of the sleeve can be used to clamp and pull up the blocked tissue at the end of the drainage tube, and the adhered tissue can be separated, so that the tissue is convenient to be sucked out by the drainage tube, thereby solving the problem that the existing negative pressure drainage tube is easily blocked by necrotic tissue.

Description

Negative pressure type drainage device for orthopedics postoperative wound infection

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a negative pressure drainage device for wound infection after orthopaedics operation.

Background

The wound after orthopaedics operation is easy to be infected, necrotic tissues and exudates can be formed at the wound after infection, the exudates are removed by adopting a negative pressure drainage mode, but the necrotic tissues easily block the negative pressure drainage tube when the negative pressure is sucked, and the necrotic tissues and exudates at the bone are influenced to be discharged.

Disclosure of utility model

The utility model provides a negative pressure type drainage device for wound infection after orthopaedics operation, which can solve the problem that necrotic tissue easily blocks a negative pressure drainage tube when the wound after orthopaedics operation carries out negative pressure type drainage in the prior art.

The negative pressure drainage device for wound infection after orthopaedics comprises a negative pressure aspirator, wherein the negative pressure aspirator is connected with a drainage tube, the end part of the drainage tube is connected with a sucker, an operation tube coaxial with the sucker is arranged at the side part of one end of the drainage tube connected with the sucker, a sleeve capable of axially moving along the operation tube is arranged in the operation tube, a protruding fixing plate and a rotating plate are arranged at the front end of the sleeve, a driving part for driving the rotating plate to rotate so that the fixing plate and the rotating plate are clamped or opened relatively is arranged on the sleeve, and through the arrangement of the operation tube and the sleeve, the blocking tissue at the end part of the drainage tube can be clamped and pulled up by the fixing plate and the rotating plate at the end part of the sleeve, so that the adhered tissue is separated, and the tissue is sucked out, thereby solving the problem that the existing negative pressure drainage tube is easy to be blocked by necrotic tissue.

Preferably, the sucker is provided with a biological semipermeable membrane with the area larger than that of the sucker, and the sucker and the dressing can be stuck to the wound surface of the wound by using the biological semipermeable membrane, so that the fixation stability of the sucker is improved.

Preferably, the driving part comprises a connecting rod which is arranged inside the sleeve and one end of which is connected with the rotating plate, the other end of the connecting rod is connected with a rotating handle at the tail part of the sleeve, the rotating handle is hinged with a fixed handle fixed at the tail part of the sleeve, the rotating plate can be rotated by pulling the connecting rod, and the relative rotation of the rotating handle and the fixed handle can realize the pulling of the connecting rod, so that the operation is convenient.

Preferably, the opposite side surfaces of the fixed plate and the rotating plate are respectively provided with cutting teeth, so that the firmness of the fixed plate and the rotating plate after clamping tissues is improved.

Preferably, the cutting teeth are triangular or conical in cross section, which facilitates engagement of the cutting teeth on the fixed and rotatable plates to clamp tissue.

Preferably, the outer side of the sleeve is sleeved with at least one piston, the piston is in contact with the inner side wall of the operation pipe, the piston can ensure that the inside of the operation pipe is in a closed state, and the negative pressure suction effect is ensured.

Preferably, the inside of sleeve be provided with at least one and sleeve's inside cross-section assorted sealed pad, the connecting rod pass from sealed pad and connect, sealed pad can guarantee the inside leakproofness of sleeve, the removal of connecting rod can not influence sealed pad's leakproofness.

Preferably, the outer sides of the rotating handle and the fixed handle are wrapped with anti-slip sleeves, so that the rotating handle and the fixed handle are prevented from being loosened by fingers during operation.

Preferably, the tail of the operation tube is connected with a detachable sealing plug, and the tail of the operation tube can be plugged by the sealing plug when the sleeve is not used, so that external bacteria are prevented from entering the operation tube.

Preferably, the sucker is made of transparent materials, so that the visibility of the sleeve in use is improved, and tissues are accurately clamped and lifted.

Compared with the prior art, the utility model has the beneficial effects that:

The operation tube and the sleeve are arranged, the fixed plate and the rotating plate at the end part of the sleeve can be used for clamping and pulling up the blocked tissues at the end part of the drainage tube, the adhered tissues are separated, the tissues are conveniently sucked out by the drainage tube, the operation is simple, the continuity of negative pressure drainage operation can be ensured, the problem that the existing negative pressure drainage tube is easily blocked by necrotic tissues is solved, the tightness of the operation tube and the sleeve is good, the requirement of continuous negative pressure suction can be met, and external bacteria can be prevented from entering the wound position.

Drawings

FIG. 1 is an overall block diagram of the present utility model;

FIG. 2 is a schematic perspective view of a sleeve according to the present utility model;

FIG. 3 is an enlarged block diagram of the portion A of FIG. 2;

fig. 4 is a cross-sectional view of the sleeve of the present utility model.

Reference numerals:

1. The negative pressure aspirator comprises a negative pressure aspirator 11, a fixed handle 12, cutting teeth 13, a piston 14, a sealing pad 15, a sealing plug 16, an anti-slip sleeve 2, a drainage tube 3, a biological semipermeable membrane 4, a sucker 5, an operating tube 6, a sleeve 7, a fixed plate 8, a rotating plate 9, a connecting rod 10 and a rotating handle.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

The utility model aims to solve the problem that in the prior art, necrotic tissues easily block a negative pressure drainage tube when a wound after orthopaedics operation is subjected to negative pressure drainage. As shown in figures 1-4, the technical scheme is that the negative pressure drainage device for wound infection after orthopaedics operation comprises a negative pressure aspirator 1, wherein a drainage tube 2 is connected to the negative pressure aspirator 1, a sucker 4 is connected to the end part of the drainage tube 2, an operation tube 5 coaxial with the sucker 4 is arranged on the side part of one end of the drainage tube 2 connected with the sucker 4, a sleeve 6 capable of axially moving along the operation tube 5 is arranged in the operation tube 5, a protruding fixed plate 7 and a rotating plate 8 are arranged at the front end of the sleeve 6, a driving part for driving the rotating plate 8 to rotate so that the fixed plate 7 and the rotating plate 8 are clamped or opened relatively is arranged on the sleeve 6, and by arranging the operation tube 5 and the sleeve 6, the blocked tissues at the end part of the drainage tube 2 can be clamped and pulled up by the fixed plate 7 and the rotating plate 8 at the end part of the sleeve 6 so as to separate the adhered tissues and facilitate the tissues to be sucked out by the drainage tube 2, thereby solving the problem that the existing negative pressure is easy to be blocked by necrotic tissues.

Specifically, the drainage tube 2, the sucker 4 and the negative pressure aspirator 1 are of detachable structures, the sucker 4 has the functions of contacting and sucking skin, the sucker 4 can suck skin around a wound when negative pressure attractive force is generated in the drainage tube 2, the end part of the drainage tube 2 faces the wound, the drainage tube 2 can suck necrotic tissues and exudates on the wound into the negative pressure aspirator 1 together, and if the drainage tube 2 is a large-area adhered tissue, the drainage tube 2 is easy to be blocked, at the moment, the large-area adhered tissue is clamped and pulled up by the fixing plate 7 and the rotating plate 8 at the end part of the sleeve 6 to separate from adhesion, and thus the tissue can be sucked away by the drainage tube 2. Wherein, the sucker 4 is made of transparent material, which improves the visibility of the sleeve 6 when in use, and accurately clamps and lifts tissues.

In this embodiment, the area is greater than biological semipermeable membrane 3 of sucking disc 4 is provided with on the sucking disc 4, can paste sucking disc 4 and dressing in wound surface department with biological semipermeable membrane 3, improves the fixed stability of sucking disc 4, biological semipermeable membrane 3 has the viscidity, has good gas permeability moreover, but has fine barrier property to the tissue and the infiltration liquid of wound department.

In this embodiment, as shown in fig. 4, the driving component includes a connecting rod 9 disposed inside the sleeve 6 and having one end connected to the rotating plate 8, the other end of the connecting rod 9 is connected to a rotating handle 10 at the tail of the sleeve 6, the rotating handle 10 is hinged to a fixed handle 11 fixed at the tail of the sleeve 6, the rotating plate 8 can be rotated by pulling the connecting rod 9, the rotating handle 10 and the fixed handle 11 can be pulled by relative rotation, the operation is convenient, the rotating plate 8 is rotationally connected to the front end of the sleeve 6, the connecting rod 9 is eccentrically disposed with respect to the rotating center on the rotating plate 8, and the connecting rod 9 has one end hinged to the rotating plate 8, when the connecting rod 9 is pulled, the connecting rod 9 moves axially toward the tail of the sleeve 6, specifically, when the rotating handle 10 and the fixed handle 11 are relatively rotated to close together, the rotating plate 8 and the fixed plate 7 clamp tissue, and likewise, when the rotating handle 10 and the fixed handle 11 are relatively far away, the rotating plate 8 and the fixed plate 7 are relatively rotated away from each other, and the tissue is released. Meanwhile, in order to improve the firmness of clamping tissues between the rotating plate 8 and the fixed plate 7, the fixed plate 7 and the rotating plate 8 clamp the tissues, and the cutting teeth 12 are arranged on the opposite side surfaces of the fixed plate 7 and the rotating plate 8. In this embodiment, the outer sides of the rotating handle 10 and the fixed handle 11 are wrapped with an anti-slip sleeve 16, so as to prevent the rotating handle 10 and the fixed handle 11 from loosening from fingers during operation.

Wherein, the section of the cutting teeth 12 can be triangular or conical, which is favorable for the engagement of the cutting teeth 12 on the fixed plate 7 and the rotating plate 8 to clamp tissues.

As shown in fig. 3-4, the outer side of the sleeve 6 is sleeved with at least one piston 13, the piston 13 contacts with the inner side wall of the operating tube 5, the piston 13 can ensure that the interior of the operating tube 5 is in a closed state, and the negative pressure suction effect is ensured, wherein the piston 13 can be made of elastic materials such as rubber, silica gel and the like.

As shown in fig. 4, at least one sealing pad 14 matched with the internal section of the sleeve 6 is disposed in the sleeve 6, the connecting rod 9 passes through the sealing pad 14 to be connected, the sealing pad 14 can ensure the tightness of the interior of the sleeve 6, the movement of the connecting rod 9 can not affect the tightness of the sealing pad 14, wherein the sealing pad 14 can also be made of elastic materials, such as rubber, silica gel and the like, the connecting rod 9 is fixedly connected with the sealing pad 14 in a sealing manner, the moving distance of the connecting rod 9 is relatively small, so that the connecting rod 9 can drive the sealing pad 14 to deform by a small extent when moving, and the sleeve 6 is still in a sealing state.

In addition, as shown in fig. 1, the tail of the operating tube 5 is connected with a detachable sealing plug 15, and when the sleeve 6 is not used, the tail of the operating tube 5 can be plugged by the sealing plug 15, so that external bacteria are prevented from entering the operating tube 5.

The specific operation steps of the negative pressure drainage device in this embodiment are as follows:

When the negative pressure type drainage device for wound infection after orthopaedics is used, firstly, the suction cup 4 and the drainage tube 2 are connected together, then the dressing is covered at a wound, and a port is formed in the dressing, so that the bottom of the suction cup 4 can cover the port on the dressing, then the suction cup 4 and the dressing are stuck at the wound surface by using the biological semipermeable membrane 3, the drainage tube 2 and the negative pressure aspirator 1 are connected together, the negative pressure aspirator 1 is started, so that tissues at the wound and exudates are sucked out from the drainage tube 2, when the opening of the drainage tube 2 is blocked by larger tissues, the sleeve 6 and the piston 13 are moved in the operation tube 5, so that the sleeve 6 and the piston 13 are moved to the blocked position, then the hand is placed at the fixed handle 11, the rotation handle 10 is rotated by using the thumb, the connecting rod 9 is driven to move when the rotation handle 10, so that the rotation plate 8 is driven to rotate, the rotation plate 8 is far away from the fixed plate 7, then the sleeve 6 and the piston 13 are pushed forward, the blocking object is positioned between the rotation plate 8 and the fixed plate 7, then the rotation handle 10 is operated, the connecting rod 9 is driven to move, the rotation plate 8 and the rotation plate 8 are driven to be meshed with the fixed plate 7, and the whole negative pressure is also can be prevented from being meshed with the inside the suction tube 2, and the internal bacteria can be conveniently sucked out, and the internal bacteria can be prevented from being adhered to the inside the operation tube.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present utility model) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, descriptions such as those related to "primary," "secondary," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in the present disclosure. Thus, a feature defining "a stage", "a second stage" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims

1. Negative pressure drainage device for orthopedics wound infection, characterized by comprising:

Negative pressure aspirator (1), negative pressure aspirator (1) on be connected with drainage tube (2), the end connection of drainage tube (2) have sucking disc (4), drainage tube (2) and sucking disc (4) continuous one end lateral part be provided with sucking disc (4) coaxial operating tube (5), the inside of operating tube (5) be provided with sleeve (6) that can carry out axial displacement along operating tube (5), the front end of sleeve (6) be provided with fixed plate (7) and rotation board (8) that stretch out, sleeve (6) on be provided with and drive rotation board (8) and rotate and make fixed plate (7) and rotation board (8) relative clamping or open drive part.

2. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1, wherein the sucker (4) is provided with a biological semipermeable membrane (3) with the area larger than that of the sucker (4).

3. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1, wherein the driving component comprises a connecting rod (9) which is arranged in the sleeve (6) and one end of which is connected with the rotating plate (8), the other end of the connecting rod (9) is connected with a rotating handle (10) at the tail part of the sleeve (6), and the rotating handle (10) is hinged with a fixed handle (11) fixed at the tail part of the sleeve (6).

4. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1 or 3, wherein the opposite side surfaces of the fixed plate (7) and the rotating plate (8) are respectively provided with cutting teeth (12).

5. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 4, wherein the section of the cutting teeth (12) is triangular or conical.

6. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1, wherein the outer side of the sleeve (6) is sleeved with at least one piston (13), and the piston (13) is contacted with the inner side wall of the operation tube (5).

7. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 3, wherein at least one sealing pad (14) matched with the inner section of the sleeve (6) is arranged in the sleeve (6), and the connecting rod (9) passes through the sealing pad (14) for connection.

8. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 3, wherein the outer sides of the rotating handle (10) and the fixed handle (11) are respectively wrapped with an anti-slip sleeve (16).

9. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1, wherein the tail part of the operation tube (5) is connected with a detachable sealing plug (15).

10. The negative pressure drainage device for wound infection after orthopaedics operation according to claim 1, wherein the sucker (4) is made of transparent material.