CN211461113U - Device for promoting venous reflux of lower limbs of patient - Google Patents
Device for promoting venous reflux of lower limbs of patient Download PDFInfo
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- CN211461113U CN211461113U CN201921807063.2U CN201921807063U CN211461113U CN 211461113 U CN211461113 U CN 211461113U CN 201921807063 U CN201921807063 U CN 201921807063U CN 211461113 U CN211461113 U CN 211461113U
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Abstract
The utility model relates to a device for promoting venous reflux of lower limbs of a patient, which comprises a sleeve-shaped pressure-resistant shell, wherein the pressure-resistant shell consists of two hinged U-shaped modules; the omega-shaped capsule body is attached in the pressure-resistant shell; an inlet and an outlet are respectively arranged at the positions close to the two ends of the bag body; the airtight mechanism comprises two sealing edges, two omega-shaped inserting rings and two elastic circular rings which can be tightly sleeved on the legs. The utility model discloses be particularly useful for the patient that lies in bed for a long time that low limbs venous return is not smooth, the cover can form a sealed space between whole device and the shank behind patient's shank, makes utricule inflation or shrink can apply malleation stimulation and negative pressure stimulation to the shank through gassing body or liquid, uses safe comfortable.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, specifically speaking is a promote device of patient's low limbs vein backward flow.
Background
Patients who are bedridden for a long time have high risk of lower limb venous thrombosis due to various reasons, the lower limb venous thrombosis can cause poor lower limb perfusion once formed, serious patients can have gangrene to cause amputation and even death, in addition, distal thrombus is fallen off to cause pulmonary artery embolism, part of the thrombus can also cause cerebral embolism through the original heart room or abnormal channels among ventricles of the patients, and the clinical healing is extremely poor.
The lower limb venous thrombosis is fundamentally a possibly existing blood high coagulation state of a patient, and can be solved by orally taking an anticoagulant drug, and is more critical to the disuse of the function of a lower limb venous muscle pump caused by bed rest, so that the flow velocity of related venous blood flow is reduced, and blood stasis is easy to generate to cause thrombosis.
The existing device for promoting venous return mainly comprises a pure external pressure type device or a lower limb nerve stimulation device, wherein the pure external pressure type device or the lower limb nerve stimulation device simulates the function of a muscle pump through the pure extrusion effect on leg muscles, particularly calf muscles, but the effect of only applying pressure in a positive pressure-baseline period on blood flow return is limited, and meanwhile, the pure positive pressure for a long time has the risk of damaging veins; the latter adopts the mode of percutaneous electrical stimulation to the nerve of lower limbs to trigger the contraction of the muscle of the lower leg, on one hand, the discomfort of electrical stimulation can be brought to a patient, and on the other hand, the long-term chronic stimulation has the risk of triggering the damage of local skin and deep nerve.
In addition, if the peripheral nerves of the lower limbs of the patients have a high-response period due to the spinal injury, the stimulation of the nerves of the lower limbs at this time risks causing severe muscle spasm of the lower limbs, and for other patients with nerve injury of the lower limbs, the nerve stimulation of the lower limbs is completely ineffective, so that a measure which can be widely used and is safe and comfortable to apply is clinically needed to promote the venous reflux of the lower limbs.
SUMMERY OF THE UTILITY MODEL
To using the long-term simple malleation of device that promotes venous reflux among the prior art to have the risk of damaging the vein, and lack the technical problem of the device that promotes lower limbs venous reflux, the utility model aims to provide a both can provide malleation amazing, also can provide the negative pressure amazing, and use safe comfortable device that promotes patient lower limbs venous reflux.
The utility model discloses a device that promotes patient's low limbs vein backward flow includes:
the pressure-resistant casing is formed by two hinged U-shaped modules, and the openable edges of the two U-shaped modules are provided with paired locking mechanisms;
the omega-shaped bag body is attached in the pressure-resistant shell, the outer side surface of the bag body is attached to the inner walls of the two U-shaped modules, and at least the inner side surface (the part which is in contact with the skin of a patient) of the bag body is an expandable membrane; an inlet and an outlet are respectively arranged at the positions close to the two ends of the bag body, and the inlet and the outlet penetrate out of the pressure-resistant shell;
airtight mechanism, airtight mechanism includes two sealed limits, two omega shape grafting rings and two elastic circular ring that can closely overlap on the leg, two the sealed limit is attached two the limit that can open of U-shaped module, two omega shape grafting ring with the both ends of utricule are connected and outstanding in withstand voltage shell, two omega shape grafting ring is corresponding to the position of the articulated department of U-shaped module is flexible section, elastic circular ring is equipped with the recess and can seals to inlay and entangle omega shape grafting ring.
The utility model is especially suitable for the patients lying in bed for a long time with the vein of the lower limb blocked, when in use, the two elastic rings can be firstly sleeved on the upper and lower ends of the lower limb such as the crus; then the pressure-resistant shell and the bag body are opened, the shank is wrapped, and the pressure-resistant shell and the bag body are locked by a locking mechanism after being closed; and then embedding the two elastic circular rings into the omega-shaped inserting rings at the two ends to complete the assembly. Two sealing edges in the airtight mechanism are in contact with each other to ensure that the two U-shaped modules are in open edge contact with each other for sealing two ends of the capsule body, the elastic rings are attached to the leg portions and are used for sealing two ends of the capsule body, so that a sealed space is formed between the whole device and the leg portions, and positive pressure stimulation and negative pressure stimulation can be applied to the leg portions by inflating and deflating the capsule body through inflation or liquid.
The air or liquid can be introduced into the air bag in advance to be properly expanded, and a small amount of space is reserved between the air bag and the lower leg in a closed state. The working process is as follows: 1) and (3) an expansion positive pressure period: when the inlet is opened and the outlet is closed, gas or liquid is introduced to further expand the bag body, so that the muscle of the lower leg is positively extruded, the venous return is promoted, and the flow of the artery to the far end is partially blocked; 2) baseline no pressure period: after the pressure is kept for a period of time, the outlet is opened, the gas or liquid in the sac body is emptied, at the moment, the muscles of the shank are not stressed, the artery is restored to the blood flow perfusion at the far end of the limb due to the elasticity of the tube wall and the pressure relaxation, and the vein is only slightly rebounded because the tube wall has no muscle support; 3) and (3) during the negative pressure period: the inlet is closed, the outlet is externally connected with devices such as a vacuum pump and the like, the bag body is evacuated, and negative pressure is formed in the space surrounded by the calf muscle and the whole device, so that the recovery of the previously compressed vein lumen is facilitated, the suction effect of the intra-abdominal pressure and the breathing cycle pressure change reduced by lying in bed on the vein reflux is compensated, and the artery far-end perfusion is accelerated; the three periods of cyclic change can realize the backflow of the vein blood at the far end to the heart and the perfusion of the artery blood to the far end of the limb, accelerate the flow of the blood and fundamentally reduce the risk of vein thrombosis of the lower limb.
In addition, the positive pressure or negative pressure stimulation can be further controlled by adjusting the speed of the gas or liquid flowing in and out. When the speed of gas or liquid entering the bag body is higher than the speed of liquid flowing out, the bag body expands to apply pressure to the leg part, and the pressure is gradually increased, so that the positive pressure stimulation effect can be achieved; when the gas or liquid is introduced and flows out at the same speed, the volume of the bag body is unchanged, and the pressure applied to the leg is unchanged; when the gas or liquid is introduced at a speed lower than the outflow speed, the capsule body is gradually contracted, and the pressure applied to the leg is gradually reduced until the capsule body is separated from the leg, even a negative pressure space is formed between the capsule body and the leg, and the leg is stimulated by negative pressure in the process.
Preferably, the cross sections of the two U-shaped modules are semicircular or asymmetric circular.
Preferably, the locking mechanism is a buckling mechanism or a sticking mechanism.
Preferably, the buckle mechanism comprises a male buckle with a barb and a female buckle with a bayonet, and the male buckle and the female buckle are respectively arranged at the outer sides of the openable edges of the two U-shaped modules.
Preferably, the two sealing edges and the two omega-shaped insertion rings are integrally connected with the capsule body.
Preferably, the elastic ring is made of rubber or flexible plastic.
Preferably, two sealing edges are made of rubber or flexible plastics.
Preferably, the parts of the omega-shaped plugging ring except the flexible section are made of hard plastics.
Preferably, the part of the capsule in contact with the skin is designed to be a semi-permeable membrane, and the pressure applying liquid can be a solution with different osmotic pressures, so that the swelling of local limbs can be relieved by the osmotic action in addition to external physical pressure.
In addition, when in actual use, the temperature of the introduced gas or liquid can be adjusted, and the thermal effect except the mechanical effect can be realized.
The utility model has the advantages that:
the utility model discloses be particularly useful for the patient that lies in bed for a long time that low limbs venous return is not smooth, the cover can form a sealed space between whole device and the shank behind patient's shank, makes utricule inflation or shrink can apply malleation stimulation and negative pressure stimulation to the shank through gassing body or liquid. When the device is used, three periodic cyclic changes (an expansion positive pressure period, a baseline non-pressure application period and a negative pressure period) can be set, so that backflow of distal venous blood to the heart and perfusion of arterial blood to the distal extremity of a limb can be realized, the flow of blood is accelerated, and the risk of venous thrombosis of lower limbs is fundamentally reduced.
The utility model discloses whole device is articulated open design, is fit for different patient's shank structure through inside cystic structure. In a word, the utility model discloses a device that promotes patient's low limbs vein backward flow both can provide the malleation amazing, also can provide the negative pressure amazing, and use safe comfortable.
Drawings
FIG. 1 is a schematic view of a device for promoting venous return of a patient's lower limb of the present invention;
FIG. 2 is a schematic, disassembled view of the device for promoting venous return of a patient's lower extremities of the present invention;
fig. 3 is an assembly diagram of the pressure-resistant casing and the bladder of the present invention;
fig. 4 is a schematic view of the pressure-resistant casing of the present invention;
fig. 5 is a schematic view of the bladder of the present invention.
Reference numerals
The pressure-resistant casing 1, the U-shaped module 11, the male buckle 12 and the female buckle 13;
the sealing mechanism 3, the sealing edge 31, the omega-shaped plugging ring 32, the flexible section 321, the elastic ring 33 and the groove 331.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Fig. 1 and 2 illustrate a device for promoting venous return of a patient's lower limb according to a preferred embodiment of the invention, which comprises a sleeve-like pressure-resistant casing 1, an omega-shaped bladder 2 and an air-tight mechanism 3.
As shown in fig. 3 and 4, the pressure casing 1 is composed of two hinged U-shaped modules 11, the cross section of the U-shaped module 11 is semicircular. The edges of the two U-shaped modules 11 which can be opened are provided with paired locking mechanisms which are buckle mechanisms and comprise male buckles 12 with barbs and female buckles 13 with bayonets, and the male buckles 12 and the female buckles 13 are respectively arranged on the outer sides of the edges of the two U-shaped modules 11 which can be opened.
The bag body 2 is attached in the pressure-resistant shell 1, the outer side surface of the bag body 2 is attached to the inner walls of the two U-shaped modules 11, and the outer side surface of the bag body 2 can be made of soft plastics, hard plastics or an expandable film; the inner side of the capsule 2 (the part in contact with the skin of the patient to be used) must then be an inflatable membrane; the near two ends of the capsule body 2 are respectively provided with an inlet 21 and an outlet 22, and the inlet 21 and the outlet 22 penetrate out of the pressure-resistant shell 1.
The airtight mechanism 3 comprises two sealing edges 31, two omega-shaped plug-in rings 32 and two elastic circular rings 33 which can be tightly sleeved on the legs of the patient, wherein the two sealing edges 31 and the two omega-shaped plug-in rings 32 are connected with the balloon body 2 into an integral structure (as shown in fig. 5). The two sealing edges 31 are also attached to the openable edges of the two U-shaped modules 11, the two omega-shaped plugging rings 32 are connected with the two ends of the capsule body 2 and protrude out of the pressure-resistant shell 1, and the parts of the two omega-shaped plugging rings 32 corresponding to the hinged parts of the U-shaped modules 11 are flexible sections 321. The elastic ring 33 is provided with a groove 331 (see fig. 2) for sealingly engaging the omega-shaped plug ring 32.
The utility model is especially suitable for the patients lying in bed for a long time with the unsmooth lower limb venous return, when in use, the two elastic rings 33 can be sleeved on the upper and lower ends of the legs of the patients; then the pressure-resistant shell 1 and the bag body 2 are opened, the shank is wrapped, and the shank is locked by a locking mechanism after being closed; then, two elastic circular rings 33 are nested in the omega-shaped inserting rings 32 at two ends, and the assembly is completed. Two sealing edges 31 in the airtight mechanism are in contact with each other to ensure the tightness of the openable edge contact of the two U-shaped modules 1, two elastic circular rings 33 are attached to the leg parts and simultaneously seal the two ends of the capsule body 2, so that a sealed space is formed between the whole device and the leg parts, and positive pressure stimulation and negative pressure stimulation can be applied to the leg parts by expanding or contracting the capsule body 2 through inflation and deflation gas or liquid.
The air or liquid can be filled into the air bag body 2 in advance to be inflated properly, and a small amount of space is reserved between the air bag body and the lower leg in a closed state. The working process is as follows:
1) and (3) an expansion positive pressure period: when the inlet 21 is opened and the outlet 22 is closed, gas or liquid is introduced to further expand the capsule body 2, so that the calf muscle is positively pressed, the venous return is promoted, and the distal flow of the artery is partially blocked;
2) baseline no pressure period: after the pressure is maintained for a period of time, the outlet 22 is opened, the gas or liquid in the capsule body 2 is emptied, at the moment, the muscles of the lower leg are not stressed, the artery is restored to the blood flow perfusion at the far end of the limb due to the elasticity of the tube wall and the pressure relaxation, and the vein is only slightly rebounded because the tube wall has no muscle support;
3) and (3) during the negative pressure period: the inlet 21 is closed, the outlet 22 is externally connected with a vacuum pump and other devices, the bag body 2 is evacuated, negative pressure is formed in the space surrounded by the calf muscle and the whole device, so that the recovery of the vein lumen pressed before is assisted, meanwhile, the suction effect of the intra-abdominal pressure and the pressure change of the respiratory cycle, which are reduced due to the lying bed, on the vein backflow is compensated, and the artery distal perfusion is accelerated.
The three periods of cyclic change can realize the backflow of the vein blood at the far end to the heart and the perfusion of the artery blood to the far end of the limb, accelerate the flow of the blood and fundamentally reduce the risk of vein thrombosis of the lower limb.
In addition, the positive pressure or negative pressure stimulation can be further controlled by adjusting the speed of the gas or liquid flowing in and out. When the speed of gas or liquid entering the bag body is higher than the speed of liquid flowing out, the bag body expands to apply pressure to the leg part, and the pressure is gradually increased, so that the positive pressure stimulation effect can be achieved; when the gas or liquid is introduced and flows out at the same speed, the volume of the bag body is unchanged, and the pressure applied to the leg is unchanged; when the gas or liquid is introduced at a speed lower than the outflow speed, the capsule body is gradually contracted, and the pressure applied to the leg is gradually reduced until the capsule body is separated from the leg, even a negative pressure space is formed between the capsule body and the leg, and the leg is stimulated by negative pressure in the process.
In addition, the cross sections of the two U-shaped modules can be designed into an asymmetric circular ring shape to adapt to different patients.
Preferably, the locking mechanism may also use adhesive tape or other conventional locking structures.
The sealing edge 31 and the elastic ring 33 may be made of rubber or flexible plastic.
Except for the flexible section 321, the omega-shaped plugging ring 32 is made of hard plastic, so that the omega-shaped plugging ring can be conveniently nested with the elastic circular ring 33.
In addition, the part of the capsule body 2 contacting with the skin can be designed into a semi-permeable membrane, and the pressure applying liquid can be solutions with different osmotic pressures, so that the swelling of local limbs can be relieved through the osmotic action in addition to external physical pressure.
When in actual use, the temperature of the introduced gas or liquid can be adjusted, and the thermal effect except the mechanical effect can be realized.
While the preferred embodiments of the present invention have been described in detail, it will be understood that the invention is not limited thereto, and that various modifications and substitutions of equivalents may be made by those skilled in the art without departing from the scope of the invention as defined in the appended claims.
Claims (8)
1. A device for promoting venous return in a lower limb of a patient, comprising:
the pressure-resistant casing is formed by two hinged U-shaped modules, and the openable edges of the two U-shaped modules are provided with paired locking mechanisms;
the bag body is attached to the pressure-resistant shell, the outer side surfaces of the bag body are attached to the inner walls of the two U-shaped modules, and at least the inner side surface of the bag body is an expandable membrane; an inlet and an outlet are respectively arranged at the positions close to the two ends of the bag body, and the inlet and the outlet penetrate out of the pressure-resistant shell;
airtight mechanism, airtight mechanism includes two sealed limits, two omega shape grafting rings and two elastic circular ring that can closely overlap on the leg, two the sealed limit is attached two the limit that can open of U-shaped module, two omega shape grafting ring with the both ends of utricule are connected and outstanding in withstand voltage shell, two omega shape grafting ring is corresponding to the position of the articulated department of U-shaped module is flexible section, elastic circular ring is equipped with the recess and can seals to inlay and entangle omega shape grafting ring.
2. The device of claim 1, wherein the two U-shaped modules are semi-circular or asymmetric circular in cross-section.
3. The device of claim 1, wherein the locking mechanism is a snap-fit mechanism or an adhesive mechanism.
4. The device of claim 3, wherein the locking mechanism comprises a male hook with a barb and a female hook with a bayonet, and the male hook and the female hook are respectively arranged on the outer sides of the openable edges of the two U-shaped modules.
5. A device for facilitating venous return of a lower limb of a patient according to claim 1, wherein the two sealing rims and the two omega-shaped docking rings are integral with the bladder.
6. The device of claim 1, wherein the resilient ring is rubber or a flexible plastic.
7. The device of claim 1 wherein the two sealing edges are rubber or flexible plastic.
8. The device for promoting venous return of the lower limbs of a patient according to claim 1, wherein the omega-shaped plug loop is made of rigid plastic except for the flexible section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807063.2U CN211461113U (en) | 2019-10-25 | 2019-10-25 | Device for promoting venous reflux of lower limbs of patient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807063.2U CN211461113U (en) | 2019-10-25 | 2019-10-25 | Device for promoting venous reflux of lower limbs of patient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211461113U true CN211461113U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921807063.2U Expired - Fee Related CN211461113U (en) | 2019-10-25 | 2019-10-25 | Device for promoting venous reflux of lower limbs of patient |
Country Status (1)
| Country | Link |
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| CN (1) | CN211461113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755247A (en) * | 2019-10-25 | 2020-02-07 | 王海兵 | Device for promoting venous reflux of lower limbs of patient |
| CN113757130A (en) * | 2021-09-02 | 2021-12-07 | 安徽凯特泵业有限公司 | Self-adjusting chemical pump |
-
2019
- 2019-10-25 CN CN201921807063.2U patent/CN211461113U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755247A (en) * | 2019-10-25 | 2020-02-07 | 王海兵 | Device for promoting venous reflux of lower limbs of patient |
| CN113757130A (en) * | 2021-09-02 | 2021-12-07 | 安徽凯特泵业有限公司 | Self-adjusting chemical pump |
| CN113757130B (en) * | 2021-09-02 | 2024-04-02 | 安徽凯特泵业有限公司 | Self-adjusting chemical pump |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200911 Termination date: 20211025 |