CN215381044U - Intensive acupuncture type communication device for perfusion and preservation of battlefield isolated tissues - Google Patents
Intensive acupuncture type communication device for perfusion and preservation of battlefield isolated tissues Download PDFInfo
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- CN215381044U CN215381044U CN202121918769.3U CN202121918769U CN215381044U CN 215381044 U CN215381044 U CN 215381044U CN 202121918769 U CN202121918769 U CN 202121918769U CN 215381044 U CN215381044 U CN 215381044U
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Abstract
The utility model relates to the technical field of medical treatment. The intensive needling mechanism is communicated with the distribution flow channel and is provided with a plurality of perfusion needles which are used for puncturing the section of the isolated tissue and perfusing a preservation solution into the isolated tissue; the distribution flow channel is communicated with an external perfusion pipe; also comprises a backflow channel for backflow of the preservation solution discharged from the isolated tissue. The utility model can realize the rapid perfusion of the isolated tissue preservation solution without identifying the tissue cavities such as blood vessels and the like, improves the isolated tissue preservation time limit and the subsequent replanting success rate, is convenient to use, and is particularly suitable for being applied in high-risk emergency environments such as battlefields and the like.
Description
Technical Field
The utility model relates to the technical field of medical treatment, in particular to a dense needling type communication device for perfusion and preservation of isolated tissues in a battlefield.
Background
In recent years, with the progress of microsurgery technology and equipment, the survival rate of replantation of severed limb and other isolated tissues is continuously improved, but the time limit of storing the severed limb is the key for restricting the success of replantation and the functional recovery of the limb. The existing methods for preserving amputative limbs comprise simple low-temperature preservation, organ preservation solution soaking preservation, perfusion preservation, hyperbaric oxygen preservation, temporary ectopic parasitism preservation and the like, and the last three methods are still limited to animal experiments.
The most common method in clinic at present is simple low-temperature preservation, namely wrapping the amputated limb with sterile gauze, then placing the packed amputated limb into a plastic bag and immersing the plastic bag in ice bath, wherein the limb containing a large amount of muscular tissues can be preserved for about 4 hours, and only the fingers and toes with a small amount of muscular tissues can be preserved for 24 hours, so the clinical replanting time limit is generally 6 hours. The perfusion preservation of the organ preservation solution plays an important role in solid organ transplantation and can obviously improve the preservation time limit, but at present, only the method of soaking the amputated limb into the organ preservation solution is clinically adopted, so the effect of improving the preservation time limit is limited.
The difficulty of adopting perfusion preservation for the amputated limb lies in that the blood vessel of the amputated limb is difficult to distinguish, the preservation liquid can not enter the tissue through the artery perfusion, and particularly, under special environments such as high-risk battlefields and the like, the amputated limb is not subjected to fine treatment with time and conditions. Aiming at the problem that the transport time after the battlefield is far longer than the storage time limit of the amputated limb at present, the utility model designs the communicating device which does not need to identify the blood vessel of the isolated tissue and penetrates the section of the isolated tissue through dense fine needles to realize the rapid perfusion storage, and can improve the storage time limit of the isolated tissue and the subsequent replanting success rate.
Disclosure of Invention
The utility model aims to provide a dense needling type communication device for perfusion preservation of isolated tissues in a battlefield, which can improve the time limit of the preservation of the isolated tissues and the success rate of subsequent replanting.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: a dense needling type communication device for the perfusion and preservation of isolated tissues in a battlefield comprises a dense needling mechanism, wherein the dense needling mechanism is communicated with a distribution flow channel and is provided with a plurality of perfusion needles which are used for penetrating the section of the isolated tissues and perfusing preservation liquid into the isolated tissues; the distribution flow channel is communicated with an external perfusion pipe; also comprises a backflow channel for backflow of the preservation solution discharged from the isolated tissue.
Preferably, the intensive acupuncture mechanism comprises a plurality of small hollow disc bodies, a plurality of perfusion needles are uniformly arranged on one surface of each small hollow disc body, and the perfusion needles are communicated with the inner cavities of the small hollow disc bodies;
the distribution flow channel is composed of a plurality of distribution pipes which are arranged corresponding to the number of the small hollow disc bodies, one end of each distribution pipe is connected with one surface of one small hollow disc body, which is far away from the perfusion needle, and is communicated with the inner cavity of the small hollow disc body; the other end of each distribution pipe is communicated with an external perfusion pipe through a main joint;
the backflow channel is formed by gaps among the small hollow disc bodies.
Preferably, the intensive acupuncture mechanism comprises a large hollow disc body, a plurality of perfusion needles are uniformly arranged on one surface of the large hollow disc body, and the perfusion needles are communicated with an inner cavity of the large hollow disc body;
a main filling pipe is arranged in the center of the other side of the large hollow disc body, one end of the main filling pipe is communicated with the inside of the large hollow disc body, and the other end of the main filling pipe is communicated with an external filling pipe through a pipe joint;
the area corresponding to the gap of each perfusion needle of the large hollow disc body is provided with a backflow pipe penetrating through two surfaces of the large hollow disc body, and the backflow channel is formed by the backflow pipes; the distribution flow channel is formed by the inner cavity of the large hollow disc body.
Preferably, the external perfusion pipe is provided with a perfusion valve.
Preferably, the filling valve is a one-way control valve which is communicated in one way towards the direction of the main filling pipe.
Preferably, the large hollow disc body, the return pipe, the main filling pipe and the pipe joint are all made of hard plastic.
Preferably, a liquid distribution barrel is fixedly arranged in the large hollow disc body corresponding to the end part of the main filling pipe, and a plurality of distribution holes are uniformly formed in the liquid distribution barrel.
Preferably, the large hollow disc body is one of a circle, a square and an ellipse.
Preferably, a protective cover is arranged outside one surface of the large hollow disc body, which is provided with the perfusion needle.
Preferably, the method of use comprises the steps of:
A. washing the isolated tissue by using sterile normal saline, and emphatically cleaning the section of the isolated tissue;
B. connecting one end of an external perfusion tube with a liquid source of the preservation liquid, connecting the other end of the external perfusion tube with a tube joint on the device, opening a perfusion valve on the external perfusion tube, and closing the perfusion valve after exhausting air in an external perfusion pipeline and the device;
C. vertically inserting a dense needling mechanism of the device into the section of the isolated tissue, and placing the isolated tissue in a sterile storage bag;
D. opening a perfusion valve on an external perfusion tube, starting perfusion, fixing the isolated tissue and the device by two hands in the perfusion process, and ensuring that the perfusion needle is tightly attached to the section of the isolated tissue and does not fall off;
E. after the preservation solution flowing out of the section of the isolated tissue is basically clear, liquid in the sterile preservation bag is discarded, the preservation solution is continuously poured, the isolated tissue is completely immersed, the device and the external pouring pipe are removed, the opening of the sterile preservation bag is tightened, and the sterile preservation bag is placed in an incubator, and ice blocks are added for preservation and transportation at the temperature of 0-4 ℃.
The beneficial effects of the utility model are concentrated and expressed as follows: the in vitro tissue preservation solution can be quickly filled without identifying the lumen of the tissues such as blood vessels, the in vitro tissue preservation solution storage time limit and the subsequent replanting success rate are improved, the use is convenient, and the in vitro tissue preservation solution is particularly suitable for being applied to high-risk emergency environments such as battlefields. The utility model inserts the perfusion needles which are densely arranged into the section of the isolated tissue, and perfuses the preservation solution, when the perfusion needles are inserted into the non-cavity tissue, such as: the closing of the corresponding perfusion needle is naturally realized when muscles, fascia and the like exist. When the tissue preservation solution is inserted into the cavity tissue such as blood vessels, the preservation solution can flow along the cavity tissue and fill the cavity tissue, and the preservation solution can be ensured to be fully perfused into the isolated tissue.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another preferred embodiment of the present invention;
FIG. 3 is a left side view of FIG. 2;
fig. 4 is a schematic view of the installation of the protective cover.
Detailed Description
As shown in fig. 1-4, a dense needling type communication device for battlefield isolated tissue perfusion preservation comprises a dense needling mechanism which is communicated with a distribution flow channel and is provided with a plurality of perfusion needles 1 for penetrating the section of the isolated tissue and perfusing preservation liquid into the isolated tissue. The intensive acupuncture mechanism can inject the preservation solution into the tissue through the section of the isolated tissue. It adopts the perfusion needle 1 of intensive setting to carry out the perfusion of preserving the liquid, can directly go on to the section is whole, need not to refine to find out the lumen tissue such as the artery of organizing the section, vein. The infusion needle 1 may be a conventional metal needle, although a medical grade plastic needle is also feasible, given the penetration requirements. The quantity and the density of arranging of filling needle 1 can be designed according to the big orientation of the separation tissue of corresponding processing, for example to disconnected foot, disconnected leg, disconnected elbow, disconnected palm etc. the size of installation basis that its needs used, and fill needle 1 density and just can suitably distinguish, but guarantee overall coverage at least and satisfy the user demand.
The distribution flow channel is communicated with the external perfusion tube 2, the distribution flow channel has the main function of relatively and uniformly guiding the preservation solution into each perfusion needle 1 according to the requirement, the specific design forms of the distribution flow channel are more, and the specific partial implementation modes can be seen below. And a backflow channel for backflow of the preservation solution discharged from the isolated tissue is used as a backflow path of the backflow preservation solution.
The utility model inserts the perfusion needles 1 which are densely arranged into the section of the isolated tissue, and perfuses the preservation solution, when the perfusion needles 1 are inserted into the non-cavity tissue, such as: the closing of the corresponding perfusion needle 1 is naturally achieved by muscles, fascia, etc. When the tissue preservation solution is inserted into the cavity tissue such as blood vessels, the preservation solution can flow along the cavity tissue and fill the cavity tissue, and the preservation solution can be ensured to be fully perfused into the isolated tissue. The intensive needling mechanism adopted by the utility model can be a large integral structure, a split structure consisting of a plurality of small modules or other structures playing the same role. The design concept of the present invention will be described in detail below by two exemplary embodiments:
when the intensive acupuncture mechanism adopts a split structure, as shown in fig. 1, the intensive acupuncture mechanism can comprise a plurality of small hollow disc bodies 3, one surface of each small hollow disc body 3 is uniformly provided with a plurality of perfusion needles 1, and the perfusion needles 1 are communicated with the inner cavities of the small hollow disc bodies 3. In this way, when in use, the perfusion needle 1 on each small hollow disc body 3 can be correspondingly inserted into a relatively concentrated area of a blood vessel and the like of a tissue section, and the perfusion needle is not inserted into an area of other tissues such as muscle, fat and the like. This has the advantage that unnecessary insertion of the infusion needle 1 during operation is reduced, reducing mechanical damage to other tissues. In this case, the distribution channel is formed by a plurality of distribution pipes 4 corresponding to the number of the small hollow discs 3, and one end of each distribution pipe 4 is connected to one surface of one small hollow disc 3 far away from the perfusion needle 1 and is communicated with the inner cavity of the small hollow disc 3. Specifically, the distribution flow channel is formed by the inner cavity of the small hollow disc body 3 and the distribution pipes 4. The other end of each distribution pipe 4 is communicated with the external perfusion pipe 2 through a main joint 5. At this time, the return passage is formed by the gap between the small hollow disks 3.
When the intensive acupuncture mechanism adopts an integral structure, as shown in fig. 2, the intensive acupuncture mechanism comprises a large hollow disc body 6, and the large hollow disc body 6 can be one of circular, square, oval and the like. As shown in fig. 4, i.e., circular. One side of the large hollow disc body 6, namely the left end face in fig. 2, is uniformly provided with a plurality of perfusion needles 1, and the perfusion needles 1 are communicated with the inner cavity of the large hollow disc body 6. The other side of the large hollow disk body 6, namely the center of the right end face in fig. 2, is provided with a main filling pipe 7, one end of the main filling pipe 7 is communicated with the inside of the large hollow disk body 6, and the other end is communicated with the outside filling pipe 2 through a pipe joint 8. Usually, the main perfusion tube 7 is directly integrated with the large hollow disc body 6, and the perfusion needle 1 page can be integrated with the large hollow disc body.
However, in this case, since the large hollow disc 6 is large, the section of the isolated tissue is shielded, and in order to facilitate the backflow of the preservation solution, the area corresponding to the gap between the perfusion needles 1 of the large hollow disc 6 is provided with the backflow pipe 9 penetrating through the two surfaces of the large hollow disc 6, and the backflow channel is formed by the backflow pipe 9. The distribution flow channel is formed by the inner cavity of the large hollow disc body 6. The return pipe 9 can be regarded as a pipeline which is communicated with two end surfaces of the large hollow disc body 6 and is used as a return path. In order to improve the safety of medical treatment and sanitation, reduce the production cost, improve the structural strength and realize light weight, the large hollow disc body 6, the return pipe 9, the main filling pipe 7 and the pipe joint 8 are all made of hard plastics and can be directly integrally processed and formed. When the intensive acupuncture mechanism adopts the integral structure, although certain puncture injury can be caused to the tissues at the non-blood vessel concentration part, the intensive acupuncture mechanism is more convenient to use. Is more suitable for emergency and critical scenes to a certain extent.
In order to control the filling operation conveniently, the external filling pipe 2 of the present invention may be further provided with a filling valve 10 to enable the external filling pipe to be opened or closed. In order to prevent the preservation solution from directly flowing back from the main perfusion tube 7 and the external perfusion tube 2, the perfusion valve 10 is a one-way control valve which is communicated towards the main perfusion tube 7 in a one-way mode. Of course, it is also possible that the filling valve 10 is arranged on the main filling pipe 7.
In addition, in the utility model, because the main perfusion tube 7 is arranged at the center of one surface of the large hollow disc body 6, in order to enable the preservation solution to be more uniformly distributed to each area in the large hollow disc body 6 so as to uniformly enter each perfusion needle 1, a better way of the utility model is that a liquid distribution cylinder 11 is fixedly arranged in the large hollow disc body 6 corresponding to the end part of the main perfusion tube 7, and a plurality of distribution holes are uniformly arranged on the liquid distribution cylinder 11. After the preservation solution flows into the large hollow disc body 6 from the main perfusion tube 7, the preservation solution firstly passes through the primary uniform distribution of the distribution cylinder 11 and then passes through the secondary uniform distribution of the tube labyrinth formed by the return tube 9, so that the preservation solution can relatively uniformly flow towards each perfusion needle 1.
Besides, in order to protect the surface where the infusion needle 1 is located, prevent the infusion needle 1 from being polluted and damaged and prevent an operator from being pricked, the protective cover 12 is arranged outside the surface, provided with the infusion needle 1, of the large hollow disc body 6, and the protective cover 12 is directly covered on the surface.
In the following, the present invention will be described in detail with respect to a method of use, which comprises the steps of:
A. washing the isolated tissue with sterile normal saline, washing the section of the isolated tissue emphatically, and removing the fallen tissue, impurities and the like covered on the section.
B. One end of the external perfusion tube 2 is connected with a liquid source of the preservation liquid, and the adopted liquid source can be bagged preservation liquid, a preservation liquid storage tank and the like. The other end of the external filling pipe 2 is connected with a pipe joint 8 on the device, a filling valve 10 on the external filling pipe 2 is opened, and the filling valve 10 is closed after air in the external filling pipe 2 and the device is exhausted.
C. The intensive needling mechanism of the device is vertically inserted into the section of the isolated tissue and is placed in a sterile storage bag.
D. The perfusion valve 10 on the external perfusion tube 2 is opened to start perfusion, and in the perfusion process, the in-vitro tissue and the device are fixed by both hands, so that the perfusion needle 1 is ensured to be tightly attached to the section of the in-vitro tissue without falling off.
E. After the preservation solution flowing out of the section of the isolated tissue is basically clear, the liquid in the sterile preservation bag is discarded, the preservation solution is continuously poured, the isolated tissue is completely immersed, the device and the external pouring pipe 2 are removed, the opening of the sterile preservation bag is tightened, and the sterile preservation bag is placed in an incubator, and ice blocks are added for preservation and transportation at the temperature of 0-4 ℃.
Claims (9)
1. A intensive acupuncture formula intercommunication device that is used for battlefield isolated tissue to pour into to preserve which characterized in that: the device comprises a dense needling mechanism, wherein the dense needling mechanism is communicated with a distribution flow channel and is provided with a plurality of perfusion needles (1) which are used for puncturing the section of the isolated tissue and perfusing a preservation solution into the isolated tissue; the distribution flow channel is communicated with an external perfusion tube (2); also comprises a backflow channel for backflow of the preservation solution discharged from the isolated tissue.
2. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 1, wherein: the intensive acupuncture mechanism comprises a plurality of small hollow disc bodies (3), a plurality of perfusion needles (1) are uniformly arranged on one surface of each small hollow disc body (3), and the perfusion needles (1) are communicated with the inner cavities of the small hollow disc bodies (3);
the distribution flow channel is composed of a plurality of distribution pipes (4) which are arranged corresponding to the number of the small hollow disc bodies (3), one end of each distribution pipe (4) is connected with one surface of one small hollow disc body (3) far away from the filling needle (1), and is communicated with the inner cavity of the small hollow disc body (3); the other end of each distribution pipe (4) is communicated with an external perfusion pipe (2) through a main joint (5);
the backflow channel is formed by gaps among the small hollow disc bodies (3).
3. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 1, wherein: the intensive acupuncture mechanism comprises a large hollow disc body (6), a plurality of perfusion needles (1) are uniformly arranged on one surface of the large hollow disc body (6), and the perfusion needles (1) are communicated with the inner cavity of the large hollow disc body (6);
a main filling pipe (7) is arranged in the center of the other surface of the large hollow disc body (6), one end of the main filling pipe (7) is communicated with the inside of the large hollow disc body (6), and the other end of the main filling pipe is communicated with an external filling pipe (2) through a pipe joint (8);
a backflow pipe (9) penetrating through two surfaces of the large hollow disc body (6) is arranged in an area corresponding to a gap of each filling needle (1) of the large hollow disc body (6), and a backflow channel is formed by the backflow pipe (9); the distribution flow channel is formed by the inner cavity of the large hollow disc body (6).
4. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 3, wherein: and a filling valve (10) is arranged on the external filling pipe (2).
5. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 4, wherein: the filling valve (10) is a one-way control valve which is communicated in one way towards the direction of the main filling pipe (7).
6. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 5, wherein: the large hollow tray body (6), the return pipe (9), the main filling pipe (7) and the pipe joint (8) are all made of hard plastic.
7. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 6, wherein: the liquid filling device is characterized in that a liquid distribution cylinder (11) is fixedly arranged in the large hollow disc body (6) corresponding to the end part of the main filling pipe (7), and a plurality of distribution holes are uniformly formed in the liquid distribution cylinder (11).
8. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 7, wherein: the large hollow disc body (6) is one of a round shape, a square shape and an oval shape.
9. The dense needled punched communicating device for the perfusion preservation of battlefield isolated tissue according to claim 8, wherein: a protective cover (12) is arranged outside one surface of the large hollow disc body (6) provided with the perfusion needle (1).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113598161A (en) * | 2021-08-16 | 2021-11-05 | 上海长征医院 | Intensive acupuncture type communication device for perfusion and preservation of battlefield isolated tissues |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113598161A (en) * | 2021-08-16 | 2021-11-05 | 上海长征医院 | Intensive acupuncture type communication device for perfusion and preservation of battlefield isolated tissues |
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