CN212466084U - Automatic tourniquet device and tourniquet set - Google Patents

Abstract

The utility model relates to an automatic pulse pressing device and a pulse pressing kit, which comprises a shell, a pressure regulating mechanism, a controller and a membrane changing mechanism, wherein the shell is provided with a pulse pressing channel, at least three air bags are arranged along the circumferential direction of the pulse pressing channel, the air bags are respectively communicated with the pressure regulating mechanism, the pressure regulating mechanism is connected with the controller, the controller is used for controlling the pressure regulating mechanism to pressurize/depressurize the air bags, the air bags are used for expanding to the center of the pulse pressing channel during pressurization, the membrane changing mechanism is arranged in the shell, the film changing mechanism comprises an installation part for installing the cylindrical isolating film, a collecting part for collecting the isolating film and a power part for driving the installation part and/or the collecting part, the power part is connected with the controller, the device comprises a controller, a mounting part and/or a collecting part, wherein the controller is used for driving the mounting part and/or the collecting part to rotate under the control of the controller so as to drive one end of the mounting part to be sleeved with the mounting part and wind the collecting part by bypassing the isolating membrane on the inner side of each air bag; the tourniquet device not only can realize the function of automatic tourniquet, but also can effectively avoid cross infection.

Description

Automatic tourniquet device and tourniquet set

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to automatic pressure arteries and veins device and pressure arteries and veins external member.

Background

The tourniquet is a common apparatus in the medical field, and is generally used for blood sampling, puncture and other operations, the tourniquet is used for compressing veins so as to effectively increase the local filling degree of the veins, thereby being more beneficial to blood sampling, puncture and other operations, the tourniquet has the advantage of low price, but has some defects in the actual use process, for example, 1, medical staff need to perform bundling, loosening and other operations in the process of using the tourniquet, the operation steps are various, and especially when the blood sampling amount is large, the workload of the medical staff can be greatly increased; 2. the existing tourniquet can be directly contacted with a patient in the using process, and the tourniquet can be repeatedly used without being disinfected, so that the problem of cross infection exists; 3. the existing tourniquet is manually bundled by medical workers and controls the bundling looseness/tightness according to experience, the bundling is too tight, so that patients feel uncomfortable, the bundling is too loose, and the vein compression effect cannot be achieved, and the problem needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve the not enough that exists among the prior art, provide a simple structure, compactness, the lower pressure arteries and veins device of cost, not only can realize the automatic function of pressing the arteries and veins to can effectively reduce medical personnel intensity of labour, improve operating efficiency, can effectively avoid cross infection moreover, thereby effectively solve the not enough that prior art exists.

The utility model adopts the technical proposal that:

the first aspect of the utility model is to solve the problems of automatic pulse pressing and arm isolation, and provides an automatic pulse pressing device, which comprises a shell, a pressure regulating mechanism, a controller and a membrane replacing mechanism, wherein the pressure regulating mechanism, the controller and the membrane replacing mechanism are arranged in the shell, the shell is provided with a pulse pressing channel for passing through the arm, at least three air bags are arranged along the circumferential direction of the pulse pressing channel, the air bags are respectively communicated with the pressure regulating mechanism,

the pressure regulating mechanism is connected with the controller, the controller is used for controlling the pressure regulating mechanism to pressurize/depressurize the air bag, the air bag is used for expanding towards the center of the pulse pressing channel during pressurization,

trade membrane mechanism set up in the casing, just trade membrane mechanism including the installation department that is used for installing the tube-shape barrier film, be used for collecting the collection portion of barrier film and be used for driving the power component of installation department and/or collection portion, power component with the controller links to each other for drive installation department and/or collection portion rotate under the control of controller, locate with a drive pot head the installation department is twined around the inboard barrier film of each gasbag and is arrived collection portion. According to the pulse pressing device provided by the scheme, the plurality of air bags are arranged in the circumferential direction of the pulse pressing channel, the inner sides of the air bags are wound with the isolating films, one end of each isolating film is constrained to the installation part, and the other end of each isolating film is constrained to the collection part; when the pressure-regulating pulse pressing device is in actual use, the arms of a patient can penetrate into the pulse pressing channel and are wrapped in the isolating membrane, the air bags are arranged on the outer side of the isolating membrane along the circumferential direction, the controller can increase the pressure in the air bags through the pressure-regulating mechanism, and the air bags can expand towards the center of the pulse pressing channel under the action of internal pressure so as to press the arms of the patient, so that the aim of automatically pressing pulses is fulfilled; after the pulse pressing is finished, the controller can release pressure for the air bag through the pressure regulating mechanism, so that the arm of the patient can conveniently withdraw from the pulse pressing channel; because the isolating membrane in the pulse pressing channel contacts the patient, after the arm of the patient exits from the pulse pressing channel, the controller can drive the mounting part and/or the collecting part to rotate through the membrane changing mechanism, so that the isolating membrane wound on the mounting part can be wound on the collecting part along the direction passing through the pulse pressing channel, the part of the isolating membrane in the pulse pressing channel contacting the arm of the patient can be wound on the collecting part, and the uncontaminated isolating membrane adjacent to the part of the isolating membrane can be rotated in the pulse pressing channel so as to contact the arm of the next patient, thereby achieving the purposes of isolation and protection; the pressure arteries and veins device that this scheme of adoption provided not only can realize automatic pressure arteries and veins function to can effectively reduce medical personnel intensity of labour, improve operating efficiency, can effectively keep apart gasbag and patient's arm moreover, make patient's arm not direct contact pressure arteries and veins passageway, thereby can effectively avoid cross infection.

For effectively adjusting the pressure in the air bag, preferably, the pressure adjusting mechanism comprises a booster pump for boosting, the booster pump is connected with the air bag through an air supply pipe, the air supply pipe is provided with a one-way valve, and the controller is connected with the booster pump. Through setting up the check valve for during gas that the booster pump carried can follow the one-way gasbag that gets into of air supply pipe, after reaching the pressure that sets for, after the booster pump stops the air feed, because the effect of check valve, the gas in the gasbag can not the backward flow, thereby makes to have stable pressure in the gasbag, so that provide stable extrusion force, thereby more be favorable to blood sampling or puncture.

Further, the pressure regulating mechanism further comprises a pressure relief valve, the air bag is provided with an exhaust pipe, the pressure relief valve is arranged on the exhaust pipe and connected with the controller, and the controller is used for controlling on/off of the pressure relief valve. So as to smoothly exhaust and release pressure.

In order to reduce the volume of the air bag as much as possible, the pressure regulating mechanism further comprises an exhaust pump, the exhaust pipe is connected with the exhaust pump, the exhaust pump is connected with the controller, and the exhaust pump is used for pumping gas in the air bag. Utilize the pump-assisted exhaust, not only can improve exhaust efficiency greatly to can go out the gas in the gasbag fast, can arrange the gas in the gasbag as far as possible moreover, make tolerance can paste the inside wall of vein pressing passageway, thereby make patient's arm can make things convenient for, the interference-free inserts in the vein pressing passageway.

In order to effectively control the pressure in the air bag, the pressure regulating mechanism further comprises a pressure sensor communicated with the air bag, and the pressure sensor is connected with the controller and used for detecting the pressure in the air bag. In this scheme, through setting up pressure sensor to detect the pressure in the gasbag, so that utilize the accurate control of controller and adjust the gasbag to the extrusion force of arm, thereby can satisfy the demand of different occasions, the application scope is wider.

The utility model discloses the installation and the change problem of tubular structure barrier film are solved to the second aspect, it is further, the installation department includes columnar structure's installation head, the one end activity of installation head is fixed in casing, the other end are provided with along the notch that installation head length direction distributes, the notch is split into first portion and first portion with this end, be provided with the spring between first portion and the second portion, the spring is used for making first portion and second portion elasticity open, just the tip of first portion and second portion is provided with arc guide portion respectively. In the scheme, as the first part and the second part are in an elastic opening state under the action of the spring, when the isolating membrane with the tubular structure is installed, the central cylinder in the isolating membrane with the tubular structure can be pressed into the installing head along the central axis direction of the installing head by pressure under the guiding action of the arc-shaped guiding part and is sleeved on the installing head, at the moment, the spring is in a compression state, and under the elastic action of the spring, the first part and the second part can press the inner wall of the central cylinder, so that the isolating membrane with the tubular structure is effectively fixed, and the isolating membrane can synchronously rotate with the installing head in the use process, and the isolating membrane can be effectively released; and when the isolating membrane in the isolating membrane with the tubular structure is used and needs to be replaced, the first part and the second part are combined together through external force, and then synchronously quit from the central tube, so that the isolating membrane can be quite conveniently detached and replaced.

In order to prevent the isolating membrane with the tubular structure from falling off from the mounting head, an annular clamping groove is further formed in the circumferential direction of the mounting head. So as to clamp the central cylinder of the isolating membrane with the cylindrical structure, thereby effectively preventing the isolating membrane from falling off in the rotating process.

In order to prevent the mounting head from rotating, the housing is provided with a through hole for mounting the mounting head, one end of the mounting head is arranged in the through hole, and an annular elastic gasket is arranged between the through hole and the mounting head. The annular elastic washer can be made of rubber materials preferentially, so that a large friction force is formed between the mounting head and the through hole, the mounting head is prevented from rotating by itself, and the mounting head can only rotate under the action of external force.

In order to collect the polluted isolation membrane conveniently, preferably, the collecting part comprises a winding column of a columnar structure, one end of the winding column is movably fixed on the shell and is connected with the power part, a restraint piece used for fixing the end part of the isolation membrane is arranged on the outer surface of the winding column, and the winding column winds the polluted isolation membrane by rotating. In this scheme, the one end of barrier film can be fixed in the winding post through the restraint, and the winding post can rotate under the drive of power parts to the barrier film winding after constantly will polluting reaches the purpose of collecting and tightening up the barrier film on the winding post.

The utility model discloses the winding that the barrier film will be solved to the third aspect and the problem that breaks away from, it is further, restraint part for set up in a plurality of outside convex teeth of winding post surface, just the tooth inclines towards the direction of keeping away from winding post stiff end respectively. In this scheme, because a plurality of outside convex teeth of winding post surface, can directly be in with the barrier film hook on the tooth to the realization is to the fixed of barrier film tip, and when the volume of the barrier film of winding on the winding post reached the volume of design, the user can outwards stimulate the barrier film of winding together along the direction of keeping away from winding post stiff end, thereby can make things convenient for, high-efficiently take off the barrier film of winding into the tube-shape from the winding post, so that empty winding post makes things convenient for follow-up use.

The utility model discloses the fourth aspect will be solved stable coiling of barrier film in the inside of pressing the arteries and veins passageway to effectively keep apart the problem of gasbag, it is further press the outside of arteries and veins passageway, be provided with a plurality of around membrane posts along the circumferencial direction of pressing the arteries and veins passageway, just around the clearance that the membrane post corresponds respectively between the two adjacent gasbags for strut the barrier film of coiling in the gasbag inboard. In this scheme, through setting up a plurality of membrane posts of winding for the barrier film can walk around each membrane post in proper order, not only can keep apart each gasbag in the outside of barrier film, reaches isolation protection's purpose, can strut and tighten the barrier film moreover, makes the barrier film can be wound into more regular shape, thereby the arm of the patient of being convenient for passes through, so that put into the pressure arteries and veins passageway with the arm smoothly, and convenient withdraw from the pressure arteries and veins passageway.

For reducing the friction, make the barrier film more smooth and easy around the process of moving around the membrane post, further, it is equipped with a plurality of gyro wheels to overlap on the membrane post. The barrier film is for the in-process that removes around the membrane post, and the gyro wheel can synchronous revolution to effectively reduce the friction, be favorable to the barrier film around the process that removes around the membrane post more smoothly.

Preferably, the power component is a stepping motor or a servo motor, the power component is connected with the winding column through a transmission mechanism, and the transmission mechanism is one or a combination of a coupler, a gear transmission mechanism, a belt transmission mechanism and a worm and gear transmission mechanism.

In order to restrain the air bag and enable the air bag to expand only towards the center of the pulse pressing channel under the action of internal pressure, the pulse pressing device further comprises a plurality of supporting plates in an arc-shaped structure, one ends of the supporting plates are respectively fixed on the shell and enclose the pulse pressing channel, and the air bag is respectively arranged on each supporting plate. So that the outer sides of the air bags are restrained by the supporting plates, and the air bags can only expand towards the center of the pulse pressing channel under the action of pressure.

In order to facilitate replacement and recovery of the isolation diaphragm, the housing further comprises a lower base and an upper cover, the mounting column, the winding column and the support plate are respectively fixed on the lower base,

the upper cover is detachably fixed on the lower base. So that in the use, thereby can be convenient take off the upper cover and can expose parts such as the inside erection column of casing, winding post and backup pad to be convenient for the change and the recovery of barrier film.

Preferably, the controller can be a single chip microcomputer, an ARM chip, a PLC or a PC.

A tourniquet kit comprises a cylindrical structure isolation membrane and a tourniquet device, wherein the cylindrical structure isolation membrane comprises a central cylinder and an isolation membrane wound outside the central cylinder, and the central cylinder and the wound isolation membrane jointly form a cylindrical structure;

the center tube is detachably fixed to the mounting portion.

Compared with the prior art, use the utility model provides a pair of automatic pressure arteries and veins device and pressure arteries and veins external member, simple structure, compactness, the cost is lower, not only can realize the automatic function of pressing the arteries and veins to can effectively reduce medical personnel intensity of labour, improve operating efficiency, can effectively avoid cross infection moreover, compare and have outstanding substantive characteristics and the progress that is showing in prior art.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a front view of a tourniquet device according to embodiment 1 of the present invention.

Fig. 2 is a schematic rear view of a tourniquet device provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a tourniquet device provided in embodiment 1 of the present invention, with the upper cover removed.

Fig. 4 is a partial cross-sectional view of an installation portion of a tourniquet according to embodiment 1 of the present invention.

Fig. 5 is a partial cross-sectional view of a winding column of the tourniquet device provided in embodiment 1 of the present invention.

Fig. 6 is a schematic structural view of a tourniquet device provided in embodiment 1 of the present invention after an isolation film is disposed.

Fig. 7 is a front view of fig. 6.

Fig. 8 is a partially enlarged schematic view I of fig. 7.

Fig. 9 is a schematic structural diagram of a cylindrical structure isolation film provided in embodiment 1 of the present invention.

Description of the drawings

A shell 100, a lower base 101, an upper cover 102, a support plate 103, an air bag 104, a pulse pressing channel 105, a mounting part 300, a mounting head 301, a notch 302, a spring 303, an arc-shaped guide part 304, an annular clamping groove 305, a bearing 305, an annular elastic washer 306,

A collecting part 400, a winding column 401, a tooth 402,

A film winding column 501,

A power unit 601, a shield sensor 602,

A cylindrical-structured isolation film 701, a central cylinder 702, and an isolation film 703.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 8, the present embodiment provides an automatic tourniquet apparatus, which includes a housing 100, a pressure regulating mechanism disposed in the housing 100, a controller, and a membrane replacing mechanism, wherein the housing 100 is provided with a tourniquet channel 105 for passing through an arm to accommodate the arm of a patient;

at least three air bags 104 are arranged along the circumferential direction of the pulse pressing channel 105, the air bags 104 are respectively communicated with the pressure regulating mechanism, the pressure regulating mechanism is connected with a controller, the controller is used for controlling the pressure regulating mechanism to pressurize/depressurize the air bags 104, and the air bags 104 are used for expanding towards the center of the pulse pressing channel 105 during pressurization so as to squeeze arms placed between the air bags 104 and achieve the pulse pressing effect;

the film changing mechanism is arranged in the shell 100, and comprises an installation part 300 for installing a cylindrical isolation film 703, a collection part 400 for collecting the isolation film 703 and a power part 601 for driving the installation part 300 and/or the collection part 400, wherein the power part 601 is connected with the controller and is used for driving the installation part 300 and/or the collection part 400 to rotate under the control of the controller so as to drive one end sleeve to be arranged on the installation part 300 and wind the collection part 400 by bypassing the isolation film 703 on the inner side of each air bag 104.

As shown in fig. 3, 6 and 7, in the pulse-compressing device provided in this embodiment, a plurality of air bags 104 are arranged in the circumferential direction of the pulse-compressing channel 105, and a separation film 703 is further wound inside each air bag 104, one end of the separation film 703 is constrained to the mounting portion 300, and the other end is constrained to the collecting portion 400; in practical use, the arm of the patient can penetrate into the pulse pressing channel 105 and is wrapped in the isolation film 703, the air bag 104 is arranged on the outer side of the isolation film 703 along the circumferential direction, the controller can increase the pressure in the air bag 104 through the pressure regulating mechanism, and the air bag 104 can expand towards the center of the pulse pressing channel 105 under the action of the internal pressure so as to press the arm of the patient, so that the purpose of automatic pulse pressing is achieved; after the pulse pressing is finished, the controller can release the pressure of the air bag 104 through the pressure regulating mechanism, so that the arm of the patient can conveniently withdraw from the pulse pressing channel 105; because the isolation film 703 in the tourniquet channel 105 contacts the patient and belongs to the contaminated isolation film 703, after the arm of the patient exits the tourniquet channel 105, the controller can drive the mounting part 300 and/or the collecting part 400 to rotate by the film changing mechanism, so that the isolation film 703 wound around the mounting part 300 can be wound to the collecting part 400 along the direction passing through the tourniquet channel 105, so that the part of the isolation film 703 in the tourniquet channel 105, which contacts the arm of the patient, can be gradually wound to the collecting part 400, and the non-contaminated isolation film 703 adjacent to the part of the isolation film 703 can be alternately switched to the tourniquet channel 105 so as to contact the arm of the next patient, thereby achieving the purpose of isolation and protection; by adopting the tourniquet device conceived by the embodiment, not only can an automatic tourniquet function be realized, thereby effectively reducing the labor intensity of medical personnel and improving the operation efficiency, but also the air bag 104 and the arm of the patient can be effectively isolated, so that the arm of the patient does not directly contact the tourniquet channel 105, thereby effectively avoiding cross infection.

Specifically, preferably, the pressure regulating mechanism includes a booster pump for boosting pressure, the booster pump is connected to the air bag 104 through an air supply pipe, the air supply pipe is provided with a one-way valve, and the controller is connected to the booster pump; through setting up the check valve for during the gas that the booster pump carried can be followed the gas supply pipe one-way entering gasbag 104, after reaching the pressure that sets for, after the booster pump stops the air feed, because the effect of check valve, the gas in the gasbag 104 can not the backward flow, thereby makes to have stable pressure in the gasbag 104, so that provides stable extrusion force, thereby more be favorable to blood sampling or puncture.

In a further scheme, the pressure regulating mechanism further comprises a pressure relief valve, the air bag 104 is provided with an exhaust pipe, the pressure relief valve is arranged on the exhaust pipe and connected with the controller, and the controller is used for controlling on/off of the pressure relief valve; in order to smoothly exhaust and release the gas, and in order to facilitate the controller to control the on/off of the pressure release valve, the pressure release valve can preferably adopt a solenoid valve.

In a further scheme, the pressure regulating mechanism further comprises an exhaust pump, the exhaust pipe is connected with the exhaust pump, the exhaust pump is connected with the controller, and the exhaust pump is used for pumping gas in the air bag 104; utilize the pump-assisted exhaust of air discharge, not only can improve exhaust efficiency greatly to can go out the gas in the gasbag 104 fast, can exhaust the gas in the gasbag 104 as far as possible moreover, make the tolerance can paste the inside wall of vein pressing passageway 105, thereby make patient's arm can make things convenient for, noiseless insert in vein pressing passageway 105.

In order to effectively control the pressure in the air bag 104, in a further aspect, the pressure regulating mechanism further includes a pressure sensor in communication with the air bag 104, and the pressure sensor is connected to the controller and is configured to detect the pressure in the air bag 104; through setting up pressure sensor to detect the pressure in the gasbag 104, so that utilize the accurate control of controller and adjust the extrusion force of gasbag 104 to the arm, thereby can satisfy the demand of different occasions, the application scope is wider. It is to be understood that the pressure sensor may be a sensor for detecting an internal pressure, which is commonly used in the art, and will not be illustrated herein.

As a preferred embodiment, as shown in fig. 3 and 4, the mounting part 300 includes a mounting head 301 having a cylindrical structure, one end of the mounting head 301 is movably fixed to the housing 100, the other end is provided with notches 302 distributed along the length direction of the mounting head 301, the notches 302 divide the end into a first part and a second part, a spring 303 is disposed between the first part and the second part, the spring 303 is used for elastically expanding the first part and the second part, and the ends of the first part and the second part are respectively provided with an arc-shaped guiding part 304. As shown in fig. 3 and 4, and fig. 6 and 7, since the first portion and the second portion are in an elastically expanded state by the spring 303, when the cylindrical structure diaphragm 701 is mounted, the central cylinder 702 in the cylindrical structure diaphragm 701 can be pressed into the mounting head 301 in the direction of the central axis of the mounting head 301 by the externally applied pressure under the guiding action of the arc-shaped guide part 304, and is fitted over the mounting head 301, as shown in fig. 6 and 7, at this time, the spring 303 is in a compressed state, under the elastic force of the spring 303, the first and second portions may press against the inner wall of the central cylinder 702, thereby effectively fixing the cylindrical-structure isolation film 701 so as to rotate in synchronization with the mounting head 301 during use, thereby effectively releasing the isolation film 703 so as to continuously rotate the isolation film 703 left in the pulse pressing channel 105 under the driving of the power component 601; when the isolating membrane 703 in the isolating membrane 701 of the cylindrical structure is used and needs to be replaced, the first part and the second part can be closed together by external force and then synchronously quit from the central cylinder 702, so that the isolating membrane can be very conveniently detached and replaced.

In order to prevent the cylindrical structure diaphragm 701 from falling off from the mounting head 301, in a further embodiment, as shown in fig. 3 and 4, a ring-shaped slot 305 is further provided along the circumferential direction of the mounting head 301. So as to seize the central cylinder 702 of the cylindrical-structured partitioning film 701, thereby effectively preventing the falling off during the rotation.

Since the mounting head 301 can rotate relative to the housing 100, in order to provide a certain friction between the mounting head 301 and the housing 100 to prevent the mounting head 301 from rotating by inertia during use, in a further aspect, the housing 100 is provided with a through hole for mounting the mounting head 301, one end of the mounting head 301 is disposed in the through hole, the mounting head 301 can be fixed to the housing 100 through a bearing 305, as shown in fig. 4, and an annular elastic gasket 306 is further disposed between the through hole and the mounting head 301, the annular elastic gasket 306 can be preferably made of a rubber material, so that a set friction is provided between the mounting head 301 and the through hole, the purpose of restraining the mounting head 301 is achieved, so as to prevent the mounting head 301 from rotating by itself under the inertia to cause the random release of the isolating membrane 703, so that the mounting head 301 can only rotate under the external force, such as by the power component 601 or the collection portion 400.

The collecting part 400 has various embodiments, preferably, as shown in fig. 3, 5 and 6, the collecting part 400 includes a winding post 401 having a cylindrical structure, one end of the winding post 401 is movably fixed to the housing 100 and is connected to the power component 601, a restraining member for fixing an end of the isolation film 703 is disposed on an outer surface of the winding post 401, and the winding post 401 winds the contaminated isolation film 703 by rotating the winding post, as shown in fig. 6 and 7, with the collecting part 400 having such a structure, one end of the isolation film 703 can be fixed to the winding post 401 by the restraining member, and the winding post 401 can rotate under the driving of the power component 601, so as to continuously wind the contaminated isolation film onto the winding post 401, thereby achieving the purpose of collecting and tightening the isolation film 703.

In order to solve the problem of winding and releasing the isolation film 703, in a further embodiment, the restricting member is a plurality of outwardly protruding teeth 402 disposed on the outer surface of the winding post 401, and the teeth 402 are respectively inclined toward a direction away from the fixed end of the winding post 401, as shown in fig. 3 and 5, the isolation film 703 can be directly hooked on the teeth due to the outwardly protruding teeth 402 on the outer surface of the winding post 401, so as to fix the end of the isolation film 703, and when the amount of the isolation film 703 wound on the winding post 401 reaches a designed amount (e.g. when the isolation film 703 in the cylindrical isolation film 701 is completely released and is completely transferred to the winding post 401), a user can pull the wound isolation film 703 outward in the direction away from the fixed end of the winding post 401, so as to conveniently and efficiently remove the wound cylindrical isolation film 703 from the winding post 401, so that the winding post 401 can be emptied for subsequent use.

In a more complete scheme, as shown in fig. 3, fig. 6, fig. 7 and fig. 8, a plurality of film winding columns 501 are arranged on the outer side of the pulse pressing channel 105 along the circumferential direction of the pulse pressing channel 105, and the film winding columns 501 respectively correspond to the gaps between two adjacent air bags 104 and are used for expanding the isolation film 703 wound on the inner side of the air bags 104. The number of the film-winding columns 501 may be determined according to actual requirements, for example, as shown in fig. 3, fig. 6, fig. 7, and fig. 8, in this embodiment, four air bags 104 surrounding in a ring shape are included, and two adjacent air bags 104 have a gap therebetween and form four gaps along the circumferential direction of the tourniquet channel 105, for convenience of description, the four gaps are respectively a first gap, a second gap, a third gap, and a fourth gap, wherein the second gap, the third gap, and the fourth gap are respectively provided with one film-winding column 501, the isolation film 703 extending from the mounting portion 300 enters the tourniquet channel 105 through the first gap, and leaves the tourniquet channel 105 from the second gap after covering the adjacent one air bag 104, then winds around the film-winding columns 501, and enters the tourniquet channel 105 again from the second gap, and so on, the isolation film 703 leaves the tourniquet channel 105 through the first gap, further winding on the collecting part 400, as shown in the figure, so that the mounting part 300 and the collecting part 400 can be associated through the isolation film 703, so that in the actual use process, the position of the isolation film 703 can be continuously alternated, so that the isolation film 703 wound on the mounting part 300 can be wound on the collecting part 400 after passing through the tourniquet channel 105; in this embodiment, the arrangement of the film winding columns 501 not only can isolate the airbags 104 at the outer side of the isolation film 703 to achieve the purpose of isolation protection, but also can stretch and tighten the isolation film 703 so that the isolation film 703 can be wound into a more regular shape, as shown in fig. 3, 6, 7 and 8, thereby facilitating the passage of the patient's arms, facilitating the smooth placement of the arms into the pulse-pressing channel 105, and the convenient withdrawal of the pulse-pressing channel 105.

For reducing the friction for the barrier film 703 is more smooth around the process of moving around membrane post 501, in further scheme, the cover is equipped with a plurality of gyro wheels on winding membrane post 501, at the barrier film 703 for around the in-process that membrane post 501 removed, the gyro wheel can rotate in step, thereby effectively reduces the friction, is favorable to the barrier film 703 around the process of moving around membrane post 501 more smooth and easy.

In this embodiment, the power component 601 may be a stepping motor or a servo motor, and the power component 601 is connected to the winding post 401 through a transmission mechanism, so as to directly drive the winding post 401 to rotate and indirectly drive the mounting head 301 to rotate, and the transmission mechanism may be a transmission mechanism commonly used in the art, such as one or more combinations of a coupler, a gear transmission mechanism, a belt transmission mechanism, and a worm gear transmission mechanism. As an example, the power component 601 is a stepping motor, an output shaft of the stepping motor is connected to the winding post 401 through a gear reduction transmission mechanism, the winding post 401 is movably mounted on the housing 100 through a bearing 305, so that the winding post 401 is driven to rotate by the power component 601, and the angle or time of the rotation can be controlled by a controller, preferably, a shielding sensor 602 is arranged at one end of the tourniquet channel 105, as shown in fig. 1, the shielding sensor 602 is connected to the controller, when the hand of the patient exits the tourniquet channel 105, the shielding sensor 602 generates sensing information and sends the sensing information to the controller, the controller controls the winding post 401 to rotate by the set angle, the set number of turns or the set time according to the sensing information, so that the contaminated isolating membrane 703 in the tourniquet channel 105 can leave the tourniquet channel 105, the isolation film 703 whose rear end is not contaminated can cover the tourniquet channel 105 to achieve the purpose of isolation protection, and the shielding sensor 602 can adopt a shielding sensor 602 commonly used in the prior art, such as a photoelectric sensor, a laser distance sensor, and the like, so as to start the power component 601 only after detecting that the hand of the patient is not shielded, i.e., exits the tourniquet channel 105.

In order to restrain the air bag 104 so that the air bag 104 can only expand towards the center of the pulse pressing channel 105 under the action of the internal pressure, in a further scheme, a plurality of supporting plates 103 in an arc-shaped structure are further included, as shown in fig. 3, 6 and 7, one ends of the supporting plates 103 are respectively fixed on the shell 100 and enclose the pulse pressing channel 105, and the air bags 104 are respectively arranged on the supporting plates 103. So that the restraint of the outer side of each balloon 104 is achieved by the support plate 103 so that each balloon 104 can be inflated only toward the center of the tourniquet channel 105 by the pressure.

Preferably, the controller may be an existing single chip, ARM chip, PLC or PC, and so on, which are not described herein again.

It can be understood that, in this embodiment, a switch and a power supply are further included, the power supply is used for supplying power, and the switch is arranged on a power supply line and is used for turning on/off the pulse pressing device.

Example 2

In order to facilitate the replacement and recycling of the isolation film 703, the main difference between this embodiment 2 and the above embodiment 1 is that in the vein pressing device provided by this embodiment, the housing 100 comprises a lower base 101 and an upper cover 102, and the mounting head, the winding post 401, the winding post and the supporting plate 103 are respectively fixed to the lower base 101, as shown in fig. 1-7,

the upper cover 102 is detachably fixed to the lower base 101. So in the use, thereby can conveniently take off upper cover 102 and can expose parts such as the erection column in casing 100, winding post 401 and backup pad 103, not only make things convenient for medical personnel to carry out the change and the recovery of barrier film 703, and after installing new tubular structure barrier film 701 on installation head 301, medical personnel can manually pull out the free end of barrier film 703, and conveniently walk around each winding post 401, be fixed in winding post 401 through restraint part at last, make winding post 401 and installation head 301 can be connected as an organic whole through barrier film 703, so that the rotation drive installation head 301 through winding post 401 rotates, and constantly release barrier film 703.

The upper cover 102 may be detachably fixed to the lower base 101 by using an existing detachable connection method, for example, the upper cover 102 may be detachably fixed to the lower base 101 by a snap for detachment, which is not illustrated herein.

Example 3

The present embodiment provides a tourniquet kit, which includes a cylindrical structure isolation film 701 and the tourniquet device described in embodiment 1 or embodiment 2, where the cylindrical structure isolation film 701 includes a central cylinder 702 and an isolation film 703 wound around the outside of the central cylinder 702, as shown in fig. 9, the central cylinder 702 and the wound isolation film 703 may jointly form a cylindrical structure; the central cylinder 702 may be made of a paper material, and the isolation film 703 may be a film commonly used in the art, especially a film with certain toughness, so as to prevent the central cylinder from being broken during use;

and the center cylinder 702 may be detachably fixed to the mounting portion 300 as shown in fig. 6 and 7, so that the cylinder-structured diaphragm 701 can be rotated and stopped in synchronization with the mounting head 301.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. An automatic tourniquet device is characterized by comprising a shell, a pressure regulating mechanism, a controller and a membrane replacing mechanism, wherein the pressure regulating mechanism, the controller and the membrane replacing mechanism are arranged in the shell, the shell is provided with a tourniquet channel for passing through an arm, at least three air bags are arranged along the circumferential direction of the tourniquet channel, the air bags are respectively communicated with the pressure regulating mechanism,

the pressure regulating mechanism is connected with the controller, the controller is used for controlling the pressure regulating mechanism to pressurize/depressurize the air bag, the air bag is used for expanding towards the center of the pulse pressing channel during pressurization,

trade membrane mechanism set up in the casing, just trade membrane mechanism including the installation department that is used for installing the tube-shape barrier film, be used for collecting the collection portion of barrier film and be used for driving the power component of installation department and/or collection portion, power component with the controller links to each other for drive installation department and/or collection portion rotate under the control of controller, locate with a drive pot head the installation department is twined around the inboard barrier film of each gasbag and is arrived collection portion.

2. The automatic tourniquet according to claim 1, wherein the pressure regulating mechanism comprises a booster pump for boosting pressure, the booster pump is connected to the air bag through an air supply pipe, the air supply pipe is provided with a check valve, and the controller is connected to the booster pump.

3. The automatic tourniquet device according to claim 2, wherein the pressure regulating mechanism further comprises a pressure release valve, the airbag is provided with an exhaust pipe, the pressure release valve is arranged on the exhaust pipe and connected with the controller, and the controller is used for controlling on/off of the pressure release valve.

4. The automatic tourniquet according to claim 3, wherein the pressure regulating mechanism further comprises an exhaust pump, wherein the exhaust tube is connected to the exhaust pump, wherein the exhaust pump is connected to the controller, and wherein the exhaust pump is used for pumping gas from the bladder.

5. The automatic tourniquet of claim 4 wherein the pressure regulating mechanism further comprises a pressure sensor in communication with the bladder, the pressure sensor being connected to the controller for sensing pressure within the bladder.

6. The automatic tourniquet of any of claims 1-5 wherein the mounting portion comprises a mounting head having a cylindrical configuration, one end of the mounting head being movably secured to the housing and the other end of the mounting head being provided with notches extending along the length of the mounting head, the notches dividing the end into a first portion and a second portion, a spring being disposed between the first and second portions for resiliently spreading the first and second portions apart, and the ends of the first and second portions each being provided with an arcuate guide.

7. The automatic tourniquet according to any of claims 1-5, wherein the collection portion comprises a winding post having a cylindrical structure, one end of the winding post is movably fixed to the housing and connected to the power unit, a restraining member is disposed on an outer surface of the winding post for fixing an end of the isolation membrane, and the winding post winds the contaminated isolation membrane by rotating.

8. The automatic tourniquet according to claim 7, wherein the restraint is a plurality of outwardly protruding teeth disposed on the outer surface of the winding post, and the teeth are respectively inclined away from the fixed end of the winding post.

9. The automatic tourniquet device according to any of claims 1 to 5, wherein a plurality of film winding columns are arranged on the outer side of the tourniquet channel along the circumferential direction of the tourniquet channel, and the film winding columns respectively correspond to the gaps between two adjacent air bags for expanding the isolating film wound on the inner side of the air bags.

10. A tourniquet kit, comprising a cylindrical structure isolation membrane and the automatic tourniquet device of any of claims 1-9, wherein the cylindrical structure isolation membrane comprises a central cylinder and an isolation membrane wound outside the central cylinder, and the central cylinder and the wound isolation membrane form a cylindrical structure together;

the center tube is detachably fixed to the mounting portion.

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