CN110192905A

CN110192905A - A kind of tourniquet

Info

Publication number: CN110192905A
Application number: CN201910600339.8A
Authority: CN
Inventors: 李晓敏; 印磊
Original assignee: Nantong First Peoples Hospital
Current assignee: Nantong First Peoples Hospital
Priority date: 2018-07-04
Filing date: 2019-07-04
Publication date: 2019-09-03
Also published as: CN108720888A

Abstract

The invention discloses a kind of tourniquets, including the band body that stops blooding, the pressurised airbag with check valve is equipped at the hemostasis upper patient's Yu arm point of puncture position of band body, pressurised airbag is connected with pressure gauge, check valve connects the pressurizing device that oriented pressurised airbag is pressurizeed, and pressurised airbag is located at hemostasis band body far from patient skin one side, hemostasis is also removably connected with soft bed course at the upper patient's Yu arm point of puncture position of band body, soft bed course is equipped with the putting hole for entering and fixing for hemostatic cotton bulb stopper, pressurised airbag is connected with the deflated balloon being located at outside hemostasis band body, and it is connected between the two by regulating valve, the first sealing cover is also installed on deflated balloon, deflated balloon inner space is not more than the 1/8 of pressurised airbag inner space, its have can satisfy provide quantitative pressure to patient and adjustment pressure stablize it is convenient Feature.

Description

A kind of tourniquet

Technical field

The present invention relates to the field of medical instrument technology, more specifically, it relates to a kind of tourniquet.

Background technique

Haemodialysis is still one of optimal treatment method of uremic patient so far, and internal arteriovenous fistula is that haemodialysis is most main The access wanted, it may be said that be " lifeline " of hemodialysis patients.The blood vessel that human body can be used as internal fistula is extremely limited, and uremia For patient due to the influence of blood drawing, venous transfusion etc. during the lesion and long term medical of blood vessel itself, vascular conditions are mostly poor. Therefore, how using with correct nursing internal fistula, the service life for extending internal fistula, guarantee the going on smoothly of dialysis, improve to dialyse and control It treats, just becomes particularly important.

The Chinese utility model patent that notification number is CN206548570U is disclosed and is oppressed at a kind of puncture of internal arteriovenous fistula Tourniquet, including the position for realizing the fixing belt of bundling type fixed operation around patient's arm, in the fixing belt At patient's Yu arm point of puncture position setting can inflation/deflation compression bladder；Sandwiched is gone back between compression bladder and patient skin There are one layer of soft bed course, the placement hole for entering and fixing for sterile cotton bulb stopper through setting on the soft bed course, patient's arm is worn Point is pierced setting within the scope of the pass of the placement hole.The utility model have operation it is convenient, reusable, use cost is low And the advantages of sterile hemostasis by compression, and can stablize and reliable hemostasis by compression function to being realized at the puncture of arterial-venous fistula.

But since patient needs the elasticity every half an hour adjustment tourniquet in hemostasis, (elasticity gradually subtracts It is small), generally 8-10 times, in above-mentioned technical proposal, to pressure air bag deflate the reduction for realizing pressure during, no It can be carried out the quantitative each capacity of control, so that the bad control of amount of pressure, generates adverse effect to patient.

Summary of the invention

In view of the deficiencies of the prior art, the present invention intends to provide a kind of tourniquet, having be can satisfy Quantitative pressure is provided to patient and adjustment pressure stablizes convenient feature.

To achieve the above object, the present invention provides the following technical scheme that

A kind of tourniquet, including hemostasis band body, described hemostasis band body one end are equipped with thread gluing, the installation of other end reverse side There is patch to detain, is equipped with the pressurised airbag with check valve, institute at the hemostasis upper patient's Yu arm point of puncture position of band body It states pressurised airbag and is connected with pressure gauge, the check valve connects the pressurizing device that the oriented pressurised airbag is pressurizeed, and institute It states pressurised airbag and is located at the hemostasis band body far from patient skin one side, the upper patient's Yu arm of hemostasis band body is worn Thorn point is also removably connected with soft bed course at position, and the soft bed course is equipped with the placement for entering and fixing for hemostatic cotton bulb stopper Hole, the soft bed course are set to the hemostasis band body and recline one side surface of patient skin, and the pressurised airbag, which is connected with, to be located at Deflated balloon outside the hemostasis band body, and be connected between the two by regulating valve, first is also installed on the deflated balloon Sealing cover, under same pressure, the deflated balloon inner space is not more than the 1/8 of the pressurised airbag inner space.

By using above-mentioned technical proposal, the band body that stops blooding is fixed on the upper limb that patient needs to stop blooding by patch button and thread gluing On, and the hemostasis cotton balls on soft bed course is directed at patient's point of puncture, before inflation, closes deflated balloon by regulating valve and add Connection between pressuring gasbag is inflated pressurised airbag by pressurizing device, under the limitation of hemostasis band body, pressurised airbag It is expanded to annular inboard and generates pressure, oppressive force is formed to patient penetrating area, pressure state is understood by pressure gauge in real time, and It is pressurized to and needs pressure value, achieve the purpose that hemostasis by compression, the setting of check valve can ensure that gas will not leak, ensure that and add There is constant pressure after pressuring gasbag inflation, after oppressing a period of time, it is desirable to reduce to the oppressive force of point of puncture, will first deflate Gas emptying in air bag, is sealed deflated balloon by the first sealing cover, opens regulating valve, and deflated balloon and pressurised airbag connect Logical, the portion gas in pressurised airbag enters in deflated balloon, and the two internal pressure is consistent, and closes regulating valve, deflation gas It is disconnected between capsule and pressurised airbag, open the first sealing cover and gas in deflated balloon is emptied and closes the first sealing Lid, pressurised airbag reduces the oppressive force of point of puncture at this time, repeats the above steps after a period of time, the gas in each pressurised airbag Pressure will appear reductions, and the amount of reduction be it is certain, can reduce well realize in batches it is quantitative once depressurize stop blooding Effect uses every time to protect the service life of internal fistula while improving hemostasis, and being detachably connected due to soft bed course After the Reusability of hemostasis band body is realized by replacing soft bed course.

Further, the pressurizing device includes air bag, and the air bag is added by the check valve with described Pressuring gasbag connects, and offers air inlet on the air bag.

By using above-mentioned technical proposal, when being inflated to pressurised airbag, medical staff can be inflated by squeezing Air bag, and air inlet is blocked using the palm of the hand, the gas extrusion in air bag is entered in pressurised airbag, squeezes finish every time Afterwards, it unclamps and air inlet is blocked, air enters in air bag, and gas is again filled in air bag, repeatedly extrudes realization Inflation to pressurised airbag, entire inflatable structure is simple, easy to operate, and does not take up space.

Further, it is connected between the pressurised airbag and the deflated balloon by connecting tube, described connecting tube one end It is connect across the tourniquet body surface with the deflated balloon, the regulating valve is set in the connecting tube, and is located at institute It states outside hemostasis band body.

By using above-mentioned technical proposal, connected between pressurised airbag and deflated balloon by connecting tube, and connecting tube one End is pierced by outside hemostasis band body, deflated balloon and regulating valve be set to tourniquet ontology far from patient skin side outside, it is convenient Operate the operation of deflated balloon and regulating valve.

Further, the air bag sliding is connected with the second sealing cover of taper for covering the air inlet, and Second sealing cover is located in the air bag, and stretch out described air bag one end diameter be less than protrude into the inflating air Capsule one end, and protrude into described air bag one end diameter and be greater than the air inlet bore dia, it is filled described in the second sealing cover stretching Gas air bag one end is connected with the limit plate that diameter is greater than the air inlet.

By using above-mentioned technical proposal, the second sealing cover of setting sliding connection in air bag, and due to protruding into One end, which is greater than, stretches out one end, and when squeezing air bag, the power that is squeezed is acted on, and the second sealing cover is towards air bag outside direction It is mobile, and air inlet is blocked, the extruding work of medical staff more simply operates, when the air quilt in air bag After extruding, the extruding force to air bag is unclamped, the second sealing cover of slight touching is by the second sealing cover into air bag Portion is mobile, and air enters in air bag.

Further, the hemostasis band body is hollow structure, and inside is embedded with waterproof layer, and is formed for placing trash ice Placed cavity, the tourniquet body outer wall offers the addition mouth being connected to the placed cavity, and the addition mouth is equipped with the Three sealing covers.

By using above-mentioned technical proposal, when stopping blooding to patient's point of puncture, can be put into placed cavity in advance Trash ice, and by the trash ice in placed cavity, so that in the case where the band body that stops blooding is fixed on patient's upper limb, the temperature energy of trash ice It is enough that definitely cold compress effect is carried out to point of puncture region, so that the function of entire tourniquet is more perfect, it is also beneficial to patient Hemostasis.

Further, the hemostasis band body slides along its length far from patient skin side is connected with hook, institute It states deflated balloon outer wall and is equipped with the snap ring cooperated with the hook.

By using above-mentioned technical proposal, by being equipped with for hook and snap ring, deflated balloon can be fixed on only On blood band body, and since hook can slide along tourniquet body length direction, so as to according to the reality of deflated balloon Position adjusts the position of hook to facilitate fixation of the medical staff to deflated balloon.

Further, the soft bed course is bonded the hemostasis band body one side and is equipped with velcro, the soft bed course It is connect by the velcro with the hemostasis band body.

By using above-mentioned technical proposal, soft bed course can be replaced individually after a period of use, improve hemostasis The service life of band body, save the cost.

Further, the hemostasis band body is equipped with placed layer close to patient skin one side, places in the placed layer There is detumescence plaster, the detumescence plaster is by weight by 5-10 parts of wallich garlic herb, 8-10 parts of dragon's blood, 8-10 parts of catechu, olibanum 8-10 Part, 3-5 parts of myrrh, 10-12 parts of rhizoma corydalis, 25-27 parts of rde bean, 4-5 parts of pericarpium zanthoxyli, 1-2 parts of Moschus, 20-25 parts of pheretima, borneol 2-3 parts, 2-3 parts of Verbena officinalis compositions, the placed layer contact patient skin offer multiple air holes on one side.

Further, the hemostasis band body is made of following raw material in parts by weight:

120-150 parts of Corvic, 120-150 parts of chliorinated polyvinyl chloride, poly halogenated phosphate fire retardant 15-20 Part, 8-10 parts of ethylene-vinyl acetate copolymer, 12-15 parts of graphene, 7-8 parts of dibutyl phthalate, phthalic acid two 2-3 parts of butyl ester, 3-5 parts of silicone oil.

A kind of preparation method of tourniquet, it is characterised in that: the following steps are included:

The first step is added in Mixers with Multi-direction Movement and mixes according to formula measurement Corvic, chliorinated polyvinyl chloride 5-10min, is added 90% ethyl alcohol of 2.5 times of volumes, magnetic agitation 12-15min, and 75-85 DEG C of heat preservation is spare；

Second step takes formula ratio poly halogenated phosphate fire retardant, ethylene-vinyl acetate copolymer that 1.5 times of volumes are added 90% ethyl alcohol, ultrasonication 5-6min, be uniformly mixed, heat preservation 75-85 DEG C it is spare；

The material that step 1 and step 2 obtain is uniformly mixed by third step, and the graphene of formula ratio, adjacent benzene two is added High-speed mixer is added in formic acid dibutyl ester, dibutyl phthalate, silicone oil jointly, stirs 15-20min；

4th step, be added 240-260 DEG C of extruder plasticate, 180-200 DEG C of calendering, cryogenic vacuum and temperature are 2-3 DEG C cold But, discharging obtains the hemostasis band body.

In conclusion the invention has the following advantages:

1, it by setting pressurised airbag, air bag, deflated balloon, pressure gauge, plays and point of puncture is carried out successively quantitatively Reduce the effect of oppressive force；

It 2, is hollow structure by setting hemostasis band body, and inside is placed with trash ice, plays and carries out to buffering point of puncture The effect of cold compress；

3, by the way that the soft bed course being detachably connected is arranged, the effect for improving hemostasis band body service life is played.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of the tourniquet of embodiment provided by the invention；

Fig. 2 is the enlarged structure schematic diagram in the portion A in Fig. 1；

Fig. 3 is a kind of structural schematic diagram of the air bag of embodiment provided by the invention.

In figure: 1, stop blooding band body；11, thread gluing；12, patch button；13, placed cavity；14, mouth is added；15, third sealing cover； 16, hook；2, pressurised airbag；21, check valve；22, pressure gauge；3, air bag；31, air inlet；32, the second sealing cover；33, Limit plate；4, soft bed course；41, putting hole；42, stop blooding cotton balls；5, deflated balloon；51, regulating valve；52, the first sealing cover； 53, connecting tube；54, snap ring.

Specific embodiment

Embodiment:

Below in conjunction with attached drawing 1-3, invention is further described in detail.

A kind of tourniquet, as shown in Figure 1-3, including hemostasis band body 1, hemostasis band body 1 is strip elastic band, hemostasis 1 one end of band body is equipped with thread gluing 11, other end reverse side is equipped with patch button 12, is mutually pasted by thread gluing 11 and patch button 12, real Now hemostasis band body 1 is fixed on patient's upper limb, is located at patient's arm point of puncture position on hemostasis band body 1 and is equipped with single To the pressurised airbag 2 of valve 21, pressurised airbag 2 is connected with pressure gauge 22, and pressure gauge 22 stretches out 1 outside of hemostasis band body, check valve The pressurizing device that the 21 oriented pressurised airbags 2 of connection are pressurizeed, and pressurised airbag 2 is located at hemostasis band body 1 far from patient skin One side, stop blooding band body 1 on be located at patient's arm point of puncture position at be also removably connected with soft bed course 4, soft bed course 4 It is equipped with the putting hole 41 filled in and fixed for hemostasis cotton balls 42, the hemostasis cotton balls 42 in putting hole 41 is used for patient's point of puncture Hemostasis, soft bed course 4 is set to hemostasis band body 1 and reclines one side surface of patient skin, and pressurised airbag 2 is connected with positioned at tourniquet Deflated balloon 5 outside ontology 1, and be connected between the two by regulating valve 51, the first sealing cover 52 is also installed on deflated balloon 5, Under same pressure, 5 inner space of deflated balloon is not more than the 1/8 of 2 inner space of pressurised airbag.In the present embodiment, deflation gas 5 inner space of capsule is the 1/8 of 2 inner space of pressurised airbag, carries out 8 hemostasiss by compression, every minor tick half an hour to patient in total. So as to realize the effect successively quantitatively depressurized to patient's point of puncture, the service life of internal fistula is helped to improve.

Pressurizing device includes air bag 3, and air bag 3 is connect by check valve 21 with pressurised airbag 2, air bag 3 On offer air inlet 31.It is connected between pressurised airbag 2 and deflated balloon 5 by connecting tube 53,53 one end of connecting tube and pressurization Air bag 2 connects, and the other end passes through hemostasis 1 surface of band body and connect with deflated balloon 5, and regulating valve 51 is set in connecting tube 53, and Outside hemostasis band body 1.By the setting of regulating valve 51 outside hemostasis band body 1, medical staff is facilitated to operate with regulating valve 51 opening and closing.

Air bag 3 slides the second sealing cover of cone 32 being connected with for covering air inlet 31, and the second sealing cover 32 are located in air bag 3, and stretch out 3 one end diameter of air bag and be less than and protrude into 3 one end of air bag, and protrude into air bag 3 one end diameters are greater than 31 diameter of air inlet, and the second sealing cover 32 stretches out 3 one end of air bag and is connected with diameter greater than air inlet 31 Limit plate 33.Limit plate 33 is for preventing the second sealing cover 32 from falling into air bag 3, and the second sealing cover 32 is by rubber material It is made.Second sealing cover 32 is arranged to cone shape, while convenience the closure of air inlet 31, is also easy to open air inlet 31。

Hemostasis band body 1 is hollow structure, and inside is embedded with waterproof layer, and forms the placed cavity 13 for placing trash ice, Hemostasis 1 outer wall of band body offers the addition mouth 14 being connected to placed cavity 13, and mouth 14 is added and is equipped with third sealing cover 15.Third Sealing cover 15 and addition 14 seal with screwed joint of mouth, waterproof layer are used and are made of waterproof material film.It is placed in placed cavity 13 Trash ice reduces hemostasis 1 surface temperature of band body, plays the effect to patient's point of puncture cold compress.

Hemostasis band body 1 slides along its length far from patient skin side is connected with hook 16,5 outer wall of deflated balloon Equipped with the snap ring 54 cooperated with hook 16.Hemostasis band body 1 is provided along its length track far from patient skin one side, blocks It hooks 16 and is connected with the sliding block cooperated with track, realize hook 16 along hemostasis 1 length direction of band body sliding.

Soft bed course 4 is bonded patient skin side and is additionally provided with novel patch, which uses institute, American Engineering institute Scholar, Department of Materials Engineering professor John Rogers lead team to develop the patch in a kind of novel wearable device, can be just The data such as real-time measurement blood flow under normal active state.The novel patch spreads on skin surface, can be quasi- by heat sensor The really blood flow of measurement blood vessel.

The soft fitting of bed course 4 hemostasis 1 one side of band body is equipped with velcro, and soft bed course 4 passes through velcro and tourniquet Ontology 1 connects.Wherein the soft fitting of bed course 4 hemostasis 1 one side of band body is velcro female patch, and hemostasis 1 corresponding surface of band body is Magic notice patch, realizes the fixation of the two.

Hemostasis band body 1 is equipped with placed layer close to patient skin one side, is placed with detumescence plaster, detumescence ointment in placed layer Medicine is by weight by 5-10 parts of wallich garlic herb, 8-10 parts of dragon's blood, 8-10 parts of catechu, 8-10 parts of olibanum, 3-5 parts of myrrh, rhizoma corydalis 10- 12 parts, 25-27 parts of rde bean, 4-5 parts of pericarpium zanthoxyli, 1-2 parts of Moschus, 20-25 parts of pheretima, 2-3 parts of borneol, 2-3 parts of Verbena officinalis compositions, Placed layer contact patient offers multiple air holes on one side.Setting detumescence plaster, helps to disappear to patient in placed layer Swell active blood vessel.

Working principle:

Hemostasis band body 1 is fixed on patient by patch button 12 and thread gluing 11 and needs on the upper limb that stops blooding, and by soft bed course 4 On hemostasis cotton balls 42 be directed at patient's point of puncture, before inflation, by regulating valve 51 close deflated balloon 5 and pressurised airbag 2 it Between connection, pressurised airbag 2 is inflated by air bag 3, pressure state is understood by pressure gauge 22 in real time, and is pressurizeed To pressure value is needed, achieve the purpose that hemostasis by compression, after oppressing a period of time, it is desirable to reduce to the oppressive force of point of puncture, first By the gas emptying in deflated balloon 5, deflated balloon 5 is sealed by the first sealing cover 52, opens regulating valve 51, deflated balloon 5 are connected to pressurised airbag 2, and the portion gas in pressurised airbag 2 enters in deflated balloon 5, and the two internal pressure is consistent, and close Regulating valve 51 is closed, is disconnected between deflated balloon 5 and pressurised airbag 2, opens the first sealing cover 52 and by gas in deflated balloon 5 Body empties and closes the first sealing cover 52, and pressurised airbag 2 reduces the oppressive force of point of puncture at this time, repeatedly above-mentioned after a period of time Step, the air pressure in each pressurised airbag 2 will appear reduction, and the amount of reduction be it is certain, realization point can be reduced well The quantitative effect for carrying out primary decompression and stopping blooding is criticized, to protect the service life of internal fistula while improving hemostasis.

Also the product material of hemostasis band body 1 is innovated for the invention simultaneously, below with reference to specific embodiment party Formula is described in detail.

Embodiment 1

Stop blooding band body 1 from far from one side of baby's patient skin to successively including photo-catalytic sterilization close to patient skin side Layer, composite layer, waterproof protective layer, the weight ratio of photo-catalytic sterilization layer raw material are as follows: 8 parts of nano-titanium dioxide, nanometer titanium dioxide 10 parts of silicon, 10 parts of carbon fiber particles, 20 parts of Arabic gum, above-mentioned raw materials, which are mixed in proportion, can be made photo-catalytic sterilization Layer, composite layer are silane modified polyether glue.Waterproof protective layer made of eva film can make tourniquet ontology 1 have waterproof Function is bonded between waterproof protective layer and photo-catalytic sterilization layer by composite layer completion.

Wherein, nano-titanium dioxide and nano silica are contained in photo-catalytic sterilization layer, photo-catalytic sterilization can be played Effect, it generates strong catalytic degradation function under the action of ultraviolet light: poisonous and harmful gas in the air that can effectively degrade Body；It can effectively kill various bacteria, and the toxin that bacterium or fungi release can be decomposed and harmless treatment.Photocatalyst simultaneously Carbon fiber has high specific surface area in stenlizing layer, is conducive to the absorption of nano-titanium dioxide and nano silica, effectively Expand the daylighting area of photocatalyst, it is final to promote the function of killing various bacteria, it is not easy at patient's wound surrounding to protect Breed bacterium.

Embodiment 2

Hemostasis band body 1 is made of following raw material in parts by weight: 5 parts of polyacrylonitrile fibre, organic phosphate flame-retardant 10 parts of agent, 5 parts of asbestos fibre, 5 parts of Silon, 5 parts of polyurethane fibre, 3 parts of acid fiber by polylactic, polypropylene fibre 3 parts, 10 parts of strong fiber, 23 parts of polyvinyl chloride fibre, 8 parts of cocoon fiber, 5 parts of zein fiber and 5 parts of flax.Wherein poly- amino Formic acid esters fiber fineness is 40%-50%, and Silon purity is 20%-30%, and zein fiber and flax purity are 20%-30%.Soft with good elasticity, formula is simple, is able to satisfy the demand of people.

Hemostasis band body 1 is made of following raw material in parts by weight: 120-150 parts of Corvic, chlorination 120-150 parts of polyvinyl chloride, 15-20 parts of poly halogenated phosphate fire retardant, 8-10 parts of ethylene-vinyl acetate copolymer, graphite 12-15 parts of alkene, 7-8 parts of dibutyl phthalate, 2-3 parts of dibutyl phthalate, 3-5 parts of silicone oil.

The band body 1 that stops blooding is made by following steps:

4th step, be added 240-260 DEG C of extruder plasticate, 180-200 DEG C of calendering, cryogenic vacuum and temperature are 2-3 DEG C cold But, discharging obtains hemostasis band body 1.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims

1. a kind of tourniquet, including hemostasis band body (1), it is characterised in that: described hemostasis band body (1) one end is equipped with thread gluing (11), other end reverse side is equipped with patch button (12), is located at patient's arm point of puncture position on the hemostasis band body (1) and sets There is the pressurised airbag (2) with check valve (21), the pressurised airbag (2) is connected with pressure gauge (22), the check valve (21) The pressurizing device that the oriented pressurised airbag (2) is pressurizeed is connected, and the pressurised airbag (2) is located at the hemostasis band body (1) it far from patient skin one side, is also detachably connected at patient's arm point of puncture position on the hemostasis band body (1) Have soft bed course (4), the soft bed course (4) is equipped with the putting hole (41) filled in and fixed for hemostasis cotton balls (42), described Soft bed course (4) is set to the hemostasis band body (1) and reclines one side surface of patient skin, and the pressurised airbag (2) is connected with position In the deflated balloon (5) of hemostasis band body (1) outside, and it is connected between the two by regulating valve (51), the deflated balloon (5) On be also installed with the first sealing cover (52), under same pressure, deflated balloon (5) inner space be not more than the pressurization gas The 1/8 of capsule (2) inner space.

2. tourniquet according to claim 1, it is characterised in that: the pressurizing device includes air bag (3), described to fill Gas air bag (3) is connect by the check valve (21) with the pressurised airbag (2), offers air inlet on the air bag (3) Hole (31).

3. tourniquet according to claim 2, it is characterised in that: the pressurised airbag (2) and the deflated balloon (5) it Between be connected to by connecting tube (53), described connecting tube (53) one end passes through the hemostasis band body (1) surface and the deflation gas Capsule (5) connection, the regulating valve (51) are set on the connecting tube (53), and are located at the hemostasis band body (1) outside.

4. tourniquet according to claim 3, it is characterised in that: air bag (3) sliding is connected with for covering The second sealing cover of taper (32) of the air inlet (31), and second sealing cover (32) is located in the air bag (3), And it stretches out air bag (3) one end diameter and is less than and protrude into the air bag (3) one end, and protrude into the air bag (3) one end diameter is greater than the air inlet (31) diameter, and second sealing cover (32) is stretched out described air bag (3) one end and connected It is connected to the limit plate (33) that diameter is greater than the air inlet (31).

5. tourniquet according to claim 4, it is characterised in that: the hemostasis band body (1) is hollow structure, internal embedding Equipped with waterproof layer, and the placed cavity (13) for placing trash ice is formed, hemostasis band body (1) outer wall is offered to be put with described The addition mouth (14) of chamber (13) connection is set, the addition mouth (14) is equipped with third sealing cover (15).

6. tourniquet according to claim 5, it is characterised in that: the hemostasis band body (1) is far from patient skin side Sliding is connected with hook (16) along its length, and deflated balloon (5) outer wall is equipped with the card cooperated with the hook (16) Ring (54).

7. tourniquet according to claim 6, it is characterised in that: the soft bed course (4) is bonded the hemostasis band body (1) one side is equipped with velcro, and the soft bed course (4) is connect by the velcro with the hemostasis band body (1).