CN108542734B - Intermittent inflating device and inflating sleeve thereof - Google Patents

Abstract

An intermittent inflation device for preventing and treating deep vein thrombosis of lower limbs and an inflation sleeve thereof, the inflation sleeve comprising: a support; the air bag is arranged on the support, and an air hole is formed in the air bag; the reserved airbag space is arranged between the support and the airbag; and a securing strap secured to the brace so as to be able to secure the brace to a calf of a patient; the intermittent inflating device comprises an inflating sleeve, an inflating pipeline and a host, one end of the inflating pipeline is connected with an air hole on an air bag of the inflating sleeve, and the other end of the inflating pipeline is connected with the host. The intermittent inflating device and the inflating sleeve thereof can easily overcome the gravity effect of the leg to smoothly inflate, can work under larger pressure, and have good preventive and therapeutic effects on deep venous thrombosis of the lower limb.

Description

Intermittent inflating device and inflating sleeve thereof

Technical Field

The present application relates to the field of medical devices, and in particular, but not limited to, an inflation sleeve for an intermittent inflation device and an intermittent inflation device including the inflation sleeve.

Background

The deep venous thrombosis of the lower limb is one of the most serious complications in the perioperative period after the orthopedic major operation, and the current method for preventing the deep venous thrombosis of the lower limb mainly comprises the following steps: basic prevention, pharmaceutical prevention, mechanical prevention, etc. The intermittent inflator pump is a common instrument for mechanically preventing deep vein thrombosis of lower limbs, and the basic principle is to utilize the mechanical principle to promote the blood flow acceleration of the vein of the lower limbs, reduce the blood retention and reduce the incidence rate of the deep vein thrombosis of the lower limbs after operation. Referring to fig. 1, the conventional intermittent inflator pump mainly comprises a main unit (not shown), a connecting pipe and an inflation sleeve, wherein the inflation sleeve generally comprises three inflation chambers. The specific working process of the intermittent inflator pump is as follows: the main machine sequentially inflates each inflation cavity of the inflation sleeve, and sequentially pressurizes the inflation sleeve from the first cavity to the third cavity; after all the inflation chambers are pressurized, the host machine is started again according to the preset intermittent time for venous refill, and the inflation chambers are inflated and pressurized sequentially; the process of inflation and deflation and pressurization and pressure relief are repeatedly performed.

However, at present, the medicine prevention is still in the core position of thrombus prevention, and part of reasons are that the effect of the intermittent inflator pump for preventing thrombus is unstable, and the advantages of the intermittent inflator pump cannot be exerted, so that although the intermittent inflator pump is used in a plurality of clinical departments, the intermittent inflator pump is not too much confidence.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The inventor of the application has deeply found the problems of the existing intermittent inflator pump and the main reasons of poor thrombus prevention effect in the long-term clinical prevention and treatment of lower limb deep vein thrombosis, and summarized as follows:

first, in principle, the greater the pressure applied to the lower leg myoabdomen, the better the preventive and therapeutic effects on deep venous thrombosis of the lower limb, but since the inflatable sleeve is annular, the arterial vessel in front of the lower leg is covered in the inflatable sleeve during use, and therefore the pressure of the inflatable sleeve cannot be too great, otherwise the blood circulation of the arterial vessel in front of the lower leg is affected, resulting in discomfort to the patient (mainly because the arterial ischemia of the patient, especially the elderly or patients with problems in the arteries themselves, is caused by the excessive pressure).

Secondly, the thrombus is concentrated on the lower leg muscle abdomen (namely the lower leg rear side), and the lower leg front side does not generate thrombus; examination and clinical studies by the inventors show that the probability of thrombus formation on the anterior side of the lower leg is only 0-0.3%o, and is secondary to thrombus formation on the ventral side of the lower leg muscle, so that it is not necessary to uniformly squeeze the entire lower leg. However, because the whole calf is covered by the inflatable sleeve of the conventional intermittent inflator, the pressure of the inflatable sleeve is uniformly distributed on the calf, and thus the conventional intermittent inflator has no pertinence to the prevention and treatment of the thrombosis occurring part.

Thirdly, the patient generally places the leg on the bed after the operation, and the clearance between leg and the bed is very little, because the gravity effect of shank again, is difficult to overcome the gravity effect of shank when inflating and fills gas smoothly in the inflation sleeve, leads to the inflation sleeve between leg and the bed often can not aerify to can not produce normal and abundant extrusion effect to shank myoabdominal department, prevent and treatment effect to thrombus is not good.

On the basis of deep research on the problems existing in the prior art, the inventor creatively provides an inflatable sleeve of an intermittent inflatable device for preventing and treating deep venous thrombosis of lower limbs, which has stronger pertinence and better effect, and the intermittent inflatable device comprising the inflatable sleeve, wherein the intermittent inflatable device easily overcomes the gravity action of legs, smoothly inflates, can work under the larger pressure of 60-120mmhg, and has good pertinence preventing and treating effect on deep venous thrombosis of lower limbs.

In particular, the present application provides an inflatable sleeve for an intermittent inflatable device for preventing and treating deep vein thrombosis of a lower limb, the inflatable sleeve comprising:

a support;

the air bag is arranged on the support, and an air hole is formed in the air bag;

the reserved airbag space is arranged between the support and the airbag; and

and the fixing strap is fixed on the support so as to fix the support on the lower leg of a patient.

In some embodiments, the braces may be provided in pairs, one brace of a pair may be provided to be secured to the inside of the patient's calf by the securing strap, and the other brace may be provided to be secured to the outside of the patient's calf by the securing strap, each brace having the balloon and the reserved balloon space provided thereon.

In some embodiments, the relative position between the two braces of the pair of braces may be adjustable.

In some embodiments, the fixing strap connecting the two braces may be provided with a hook and loop fastener or a buckle, so as to achieve adjustment of the relative position between the two braces.

In some embodiments, the inflatable sleeve may further comprise a connection strap detachably connected between the pair of braces, such that one ends of the two braces may be connected by the connection strap, and the other ends of the two braces may be connected by the fixing strap, and the connection strap may be provided with a fastening buckle or a snap buckle, so as to achieve adjustment of the relative position between the two braces.

In some embodiments, the inflatable sleeve may be one-piece and configured to wrap around the patient's calf and expose the front side of the patient's calf, the inflatable sleeve may further comprise a connecting strap, the braces may be divided into two groups, each group may comprise a plurality of braces that are continuously arranged, each brace is provided with the air bag and the reserved air bag space, one end of each brace of the two groups may be connected by the connecting strap, and the other end of each brace of the two groups may be connected by the fixing strap.

In some embodiments, the brace may be one piece, having a recess on one side capable of receiving a patient's calf, the balloon and the reserved balloon space both being disposed in the recess, the recess may be configured to be adjustable so that the recess is capable of receiving a different fat and lean patient's calf.

In some embodiments, the recess may be arranged to be adjustable such that its curvature is greater than the curvature of the portion of the patient's calf received in the brace. For example, the recess may be formed from a resilient material that is adjusted to have a curvature greater than the curvature of the portion of the patient's calf that is received in the brace.

In some embodiments, the balloon within each brace may be provided with 1 to 3 inflation chambers along the length of the patient's calf.

In some embodiments, the brace may be provided in 1 pair or 1, and the balloon may be provided with 3 inflation chambers along the length of the patient's calf; alternatively, the brace may be provided in 3 pairs or 3, and the balloon may be provided with 1 inflation lumen.

In some embodiments, the fixing band may include a first band and a second band, one ends of the first band and the second band may be fixed to the brace, respectively, and the other ends of the first band and the second band may be connected through an adjusting member such that a length of the entire fixing band can be adjusted.

In some embodiments, the brace may be made of a material selected from one or more of plastic, metal, and low temperature thermoplastic materials.

In some embodiments, the brace may be made of one or more materials selected from the group consisting of high density polyethylene, ultra high molecular weight polyethylene, low temperature thermoplastic materials, polycarbonate, ABS plastic, aluminum alloys, magnesium alloys, and stainless steel materials.

In some embodiments, the inflatable sleeve may further comprise a pad configured to be positioned where the brace contacts the patient's calf, thereby alleviating discomfort to the patient from the brace.

In some embodiments, the gasket may be made of a silicone or low temperature thermoplastic material, or the gasket may be composed of a waterproof skin and a sponge filled in the waterproof skin.

The application also provides an intermittent air charging device for preventing and treating deep vein thrombosis of lower limbs, the intermittent air charging device comprises the air charging sleeve, an air charging pipeline and a host machine, wherein one end of the air charging pipeline is connected with an air hole on an air bag of the air charging sleeve, and the other end of the air charging pipeline is connected with the host machine.

The intermittent type nature aerating device's of this application inflation sleeve is provided with the reservation gasbag space for the gas can get into the gasbag smoothly, and alright produce abundant extrusion to shank myoabdomen after the pressure in the gasbag is enough big. Meanwhile, the air bag of the inflatable sleeve of the intermittent inflatable device does not encircle the whole calf of a patient, but can be arranged at the lower leg myobelly with multiple thrombus, so that the blood circulation is not influenced, and the higher pressure can be applied to the lower leg myobelly in a targeted manner, so that the prevention and treatment effects on the deep venous thrombosis of the lower limbs are improved.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the present application, and are incorporated in and constitute a part of this specification, illustrate the technical aspects of the present application and together with the examples of the present application, and not constitute a limitation of the technical aspects of the present application.

FIG. 1 is a schematic view of a part of a conventional intermittent inflator.

Fig. 2 is a view showing a state of use of the intermittent inflator of embodiment 1 of the present application.

Fig. 3-1 is a cross-sectional view of the inflation sleeve of the intermittent inflation device of embodiment 1 of the present application along the length of the patient's leg.

Fig. 3-2 is a cross-sectional view of another inflation sleeve of the intermittent inflation device of embodiment 1 of the present application along the length of a patient's leg.

Fig. 4 is a schematic structural view of an inflation sleeve of the intermittent inflation device of embodiment 2 of the present application.

Fig. 5 is a schematic structural view of an inflation sleeve of an intermittent inflation device of embodiment 3 of the present application.

Fig. 6 is a schematic structural view of an intermittent inflator of embodiment 4 of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.

Example 1

Referring to fig. 2-3, the intermittent inflation device for preventing and treating deep vein thrombosis of lower limb of the present embodiment comprises an inflation sleeve, an inflation pipeline 20 and a main unit 30, wherein one end of the inflation pipeline 20 is connected to the inflation sleeve, the other end is connected to the main unit 30, and the main unit 30 inflates the inflation sleeve through the inflation pipeline 20 when in use.

The inflatable sleeve comprises a pair of supporting tools 1 and 1', wherein an air bag 2, a reserved air bag space 3, a fixing belt 4 and a gasket 5 are respectively arranged on the supporting tools 1 and 1'.

One side of the brace 1, 1' has a recess for forming the reserved balloon space 3. The brace 1, 1 'has a certain stiffness such that when one side of the patient's lower leg is pressed against the patient's lower leg, the brace 1, 1' is able to overcome the weight of the patient's lower leg such that the patient's lower leg is supported on the brace 1, 1 'without pressing against the inner surface of the brace 1, 1', thereby ensuring that the reserved airbag space 3 can be formed; at the same time, the brace 1, 1 'can also be made to overcome the pressure in the balloon 2 when inflated into the balloon 2, preventing the balloon 2 from expanding away from the patient's calf.

The air bag 2 is arranged in the concave part, and an air hole is arranged on the air bag 2, and one end of the air charging pipeline 20 is connected with the air charging sleeve through the air hole. The reserved balloon space 3 is arranged between the brace 1, 1' and the balloon 2. The fixing band 4 comprises a first band fixed to the brace 1 and a second band fixed to the brace 1', on which an adjusting member (for example, a "day" adjusting buckle) is provided, through which the first band and the second band are connected, so that the braces 1, 1' are fixed to the inner and outer sides of the patient's calf, respectively. When the utility model is used for patients with different fatness and thinness, the fixing belt 4 is loosened and fastened by adjusting the position of the adjusting buckle.

The pad 5 is arranged to be located where the brace 1, 1 'contacts the patient's calf, thereby alleviating discomfort to the patient from the brace. The pad 5 is made of a soft material, and since the wound of the leg is easily bleeding after the leg operation is performed on the patient, it is also required that the pad 5 be waterproof to prevent the bleeding of the leg of the patient from penetrating into the air-filled sleeve and to facilitate cleaning.

The brace 1, 1 'of the present embodiment may be configured as shown in fig. 3-1 or fig. 3-2, i.e. the included angle θ of the brace 1, 1' may be configured as 90 ° or greater than 90 °. When the angle θ=90°, the top and bottom edges of the brace 1, 1' are in contact with the patient's calf, so that the pad 5 is disposed at the top and bottom edges of the brace 1, 1 '. When the included angle theta is larger than 90 degrees, the upper part and the lower part of the support 1, 1' are in contact with the lower leg of the patient, at this time, the contact area between the support 1, 1' and the lower leg of the patient is larger, and the gaskets 5 are arranged on the upper part and the lower part of the support 1, 1 '.

In this embodiment, the air bag 2 is provided with three inflatable chambers 21, 22, 23 along the length direction of the calf of the patient, when in use, the host 30 sequentially inflates each inflatable chamber, and after all inflatable chambers are pressurized, the host is restarted according to a preset intermittent time for venous refill, and sequentially inflates and pressurizes the inflatable chambers; the process of inflation and deflation and pressurization and pressure relief are repeatedly performed. Furthermore, the balloon 2 may be provided with one or two inflatable chambers. When the air bag 2 is provided with an inflation cavity, two or three pairs of supporting tools can be worn at different positions of the lower leg of a patient, the air bag of each pair of supporting tools can be inflated and pressurized in sequence, or only one pair of supporting tools can be worn, and after the air bag of the pair of supporting tools completes inflation and pressurization, the air bag of the pair of supporting tools is detached and worn at the other position of the lower leg, and then inflation and pressurization are carried out.

In this embodiment, the braces 1, 1' are made of high density polyethylene material and the pads 5 are made of silicone. In addition, the brace 1, 1' may also be made of other plastics, metals or low temperature thermoplastic materials, such as ultra high molecular weight polyethylene, low temperature thermoplastic materials, polycarbonate, ABS plastic, aluminum alloys, magnesium alloys or stainless steel materials, etc.; the gasket 5 may also be made of a low-temperature thermoplastic plate, or be composed of a waterproof skin and a sponge filled in the waterproof skin.

Example 2

Referring to fig. 4, the present embodiment is different from embodiment 1 only in that:

the inflatable sleeve further comprises a connecting strap 6, the connecting strap 6 is detachably connected between the support 1, 1', so that one ends of the support 1 and the support 1' are connected through the connecting strap 6, and the other ends are still connected through the fixing strap 4. In use, the connecting band 6 is placed under the patient's calf, so that the abdomen of the patient's calf is also enclosed in the inflatable sleeve.

In this embodiment, the connection belt 6 is connected between the holders 1 and 1 'by a fastening tape, and a part of the fastening tape is provided on the holders 1 and 1', and another part of the fastening tape is provided on the connection belt 6, or a part of the fastening tape may be used as the connection belt 6. In addition, a plurality of connecting belts 6 with different lengths can be prepared, and the connecting belts 6 are detachably connected between the supporting tools 1 and 1' through buckles, so that patients with different fatness and thinness can be conveniently adapted through selecting the connecting belts 6 with different lengths.

Example 3

Referring to fig. 5, the inflatable sleeve of the present embodiment is of one piece type and is worn on the calf of the patient to expose the anterior side of the calf of the patient. The inflatable sleeve comprises a support, an air bag, a reserved air bag space, a fixing belt 4, a gasket and a connecting belt 6. The brace includes two sets of braces, and one of them is equipped with brace 1A and brace 1B that two set up in succession, and another group brace is equipped with on every brace the gasbag with reserve gasbag space including two brace 1C and brace 1D that set up in succession, and one end of two sets of braces is passed through connecting band 6 is connected, and the other end of two sets of braces is passed through fixed band 4 is connected. The construction and arrangement of the brace, the balloon, the reserved balloon space, the securing strap 4 and the spacer are the same as in example 1.

For patients with fat lower legs, thrombus is eliminated by inflating and pressurizing the air bags in the supporting tools 1A and 1D; for patients with a relatively thin lower leg, thrombus is eliminated by inflating and pressurizing the balloons in the braces 1B and 1C.

Example 4

The intermittent air charging device for preventing and treating deep vein thrombosis of lower limbs of the embodiment comprises an air charging sleeve, an air charging pipeline and a host machine, wherein one end of the air charging pipeline is connected to the air charging sleeve, the other end of the air charging pipeline is connected to the host machine, and the host machine charges the air charging sleeve through the air charging pipeline when in use.

Referring to fig. 6, the inflatable sleeve includes a brace 1, an air bag 2, a reserved air bag space 3, a fixing strap 4 and a gasket. The brace 1 is one-piece, having an opening on one side and being hollow or partially hollow in its interior, so that a recess is formed on one side thereof, in which recess both the balloon 2 and the reserved balloon space 3 are arranged, which recess is able to accommodate the lower leg of the patient. The air bag 2 is provided with an air hole, and one end of the air charging pipeline is connected with the air charging sleeve through the air hole. The concave part is made of elastic materials, so that the concave part is adjustable and can be adjusted according to the fat and thin of the lower leg of a patient, and accordingly the concave part can accommodate the lower leg of different fat and thin patients. The fixing strap 4 comprises a first strap and a second strap, one ends of the first strap and the second strap are respectively fixed on the brace 1, and the other ends of the first strap and the second strap are connected through the fastening strap, so that the length of the whole fixing strap 4 can be adaptively adjusted according to the weight of the lower leg of a patient. When the patient has a fat calf, the fixing strap 4 is loosened so that the opening on one side of the brace 1 and the recess become larger; when the patient's lower leg is thin, the fixing strap 4 is pulled tightly, and the brace 1 is deformed under the pulling of the fixing strap 4, so that the opening on one side of the brace 1 and the concave portion are both smaller, and the brace 1 can be tightly attached to the patient's lower leg. The pad is arranged on two top edges of one side of the support 1 with the concave part, and when the lower leg of a patient is placed in the concave part of the support, the sponge pad can relieve discomfort caused by local stress of the lower leg of the patient. The gasket is made of a low temperature thermoplastic plate.

One side of the brace 1 having the concave portion is made of elastic plastic, and the other side of the brace 1 is made of stainless steel material. In order to reduce the weight of the brace 1, the proportion of the brace portion made of stainless steel material may be reduced or the brace portion made of stainless steel material may be made hollow.

Although the embodiments disclosed in the present application are described above, the embodiments are only used for facilitating understanding of the present application, and are not intended to limit the present application. Any person skilled in the art to which this application pertains will be able to make any modifications and variations in form and detail of implementation without departing from the spirit and scope of the disclosure, but the scope of the application is still subject to the scope of the claims appended hereto.

Claims (10)

1. An inflatable sleeve for an intermittent inflatable device for preventing and treating deep vein thrombosis of a lower limb, the inflatable sleeve comprising: a support; the air bag is arranged on the support, and an air hole is formed in the air bag; the reserved airbag space is arranged between the support and the airbag; and a securing strap secured to the brace so as to be able to secure the brace to a calf of a patient;

one side of the support is provided with a concave part for forming the reserved air bag space; the brace has a certain hardness, so that when one side of the lower leg of a patient is pressed against a sickbed, the brace can overcome the gravity of the lower leg of the patient, so that the lower leg of the patient is supported on the brace without being pressed on the inner surface of the brace, and the reserved air bag space can be formed; at the same time, the support can overcome the pressure in the air bag when the air bag is inflated, and the air bag is prevented from expanding towards the direction away from the lower leg of the patient.

2. The inflatable sleeve of an intermittent inflatable device according to claim 1, wherein the braces are provided in pairs, one brace of a pair being provided to be secured to the inside of a patient's calf by the securing strap, the other brace being provided to be secured to the outside of a patient's calf by the securing strap, each brace being provided with the bladder and the reserved bladder space.

3. The inflation sleeve of the intermittent inflation device of claim 2, wherein a relative position between two braces of the pair of braces is adjustable; optionally, the fixing strap connecting the two brackets is provided with a sticking buckle or a buckling buckle, so that the adjustment of the relative position between the two brackets is realized; optionally, the inflatable sleeve further comprises a connecting band detachably connected between the pair of braces, so that one ends of the two braces are connected through the connecting band, the other ends of the two braces are connected through the fixing band, and the connecting band is provided with a sticking buckle or a clamping buckle, so that the adjustment of the relative positions of the two braces is achieved.

4. The inflation sleeve of the intermittent inflation device according to claim 1, wherein the inflation sleeve is one-piece and is provided so as to be wrapped around a patient's calf and capable of exposing the front side of the patient's calf, the inflation sleeve further comprises a connecting band, the braces are divided into two groups, each group comprises a plurality of braces provided in succession, the airbag and the reserved airbag space are provided on each brace, one ends of the two groups of braces are connected by the connecting band, and the other ends of the two groups of braces are connected by the fixing band.

5. The inflatable sleeve of an intermittent inflatable device according to claim 1, wherein the brace is one-piece, having a recess on one side thereof capable of receiving a patient's calf, the balloon and the reserved balloon space being both disposed in the recess, the recess being arranged to be adjustable so that the recess is capable of receiving a different fat and lean patient's calf.

6. The inflation sleeve of an intermittent inflation device of any one of claims 1-5, wherein the balloon within each brace is provided with 1 to 3 inflation chambers along the length of the patient's calf.

7. The inflation sleeve of an intermittent inflation device according to any one of claims 1-5, wherein the securing strap comprises a first strap and a second strap, one ends of the first strap and the second strap being secured to the brace, respectively, and the other ends of the first strap and the second strap being connected by an adjustment member such that the length of the entire securing strap can be adjusted.

8. The inflation sleeve of an intermittent inflation device of any of claims 1-5, wherein the brace is made of a material selected from one or more of plastic, metal; optionally, the brace is made of one or more materials selected from the group consisting of high density polyethylene, ultra high molecular weight polyethylene, polycarbonate, ABS plastic, aluminum alloy, magnesium alloy, and stainless steel materials.

9. The inflation sleeve of an intermittent inflation device of any of claims 1-5, wherein the inflation sleeve further comprises a spacer configured to be positioned where the brace contacts a patient's lower leg, thereby alleviating discomfort to the patient from the brace; optionally, the gasket is made of a silicone or low temperature thermoplastic material, or the gasket is composed of a waterproof skin and a sponge filled in the waterproof skin.

10. An intermittent inflation device for preventing and treating deep vein thrombosis of lower limbs, the intermittent inflation device comprising the inflation sleeve according to any one of claims 1 to 9, an inflation pipeline and a host, one end of the inflation pipeline being connected to an air hole on an air bag of the inflation sleeve, and the other end being connected to the host.