CN109091195B - Foldable mixed hemostasis structure and hemostasis device - Google Patents
Foldable mixed hemostasis structure and hemostasis device Download PDFInfo
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- CN109091195B CN109091195B CN201811023675.2A CN201811023675A CN109091195B CN 109091195 B CN109091195 B CN 109091195B CN 201811023675 A CN201811023675 A CN 201811023675A CN 109091195 B CN109091195 B CN 109091195B
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- scissor
- hinge
- supporting rod
- air bag
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
Abstract
The invention discloses a foldable hybrid hemostasis structure and a hemostasis device, wherein the hemostasis structure consists of a hemostasis material external application film and a hybrid self-adaptive structure. The hybrid self-adaptive structure consists of an air bag, an inflating device and a self-adaptive shear-type hinge unfolding structure. The hemostatic material coating film is stuck and fixed on the outer side of the air bag. The inflation device is connected to the upper end of the air bag and can inflate or deflate the air bag. The self-adaptive scissor-type hinge unfolding structure consists of scissor-type hinge structure units and supporting rods. The shear hinge structure unit consists of a shear hinge unit and an elastic element; the supporting rod consists of a supporting rod shear hinge unit and a supporting rod elastic element. When the hemostatic structure is used, the support rod is expanded along the axial direction, the air charging device is opened to charge air to the air bag, so that the air bag is expanded to drive the hemostatic material outer application film to contact with a wound surface, the scissor hinge structure unit is expanded along the radial direction to provide support for the air bag, and the air charging is stopped when the pressure meets the requirement that the wound presses hemostatic conditions, so that the hemostatic function is realized.
Description
Technical Field
The invention relates to a novel transfixion hemostasis structure, in particular to a self-adaptive foldable mixed hemostasis structure and an injection type foldable mixed hemostasis structure.
Background
The existing battlefield penetration hemostasis treatment mainly adopts methods such as compression hemostasis, burning hemostasis, grease and gauze filling hemostasis and the like, and the conventional hemostasis methods are far from meeting the emergency requirements of penetration hemostasis due to the limitation of wartime conditions or treatment effects, so that a new hemostasis method and a new hemostasis device are urgently needed to be developed to fill the blank. RevMedx, a medical technology company in Oregon, USA, developed a syringe-like medical device named 'XStat' with a built-in mini-cotton swab that changed the way that the medic could treat gunshot and shrapnel wounds. When in use, dozens of pill-shaped micro absorbent cottons are injected into wounds by the military medical personnel and are treated by chitosan. Chitosan is capable of clotting blood and fighting infections. In a few seconds, the cotton wool can expand ten times, close the wound and stop bleeding. However, the method of stopping bleeding by means of blood-sucking expansion is very dangerous for the wounded with big hemorrhage in the battlefield, and the strength of the material is weakened after the material is expanded, so that the material is difficult to provide continuous extrusion force on the wound surface, and the function of the material needs to be further improved.
Disclosure of Invention
Aiming at the defects in the prior art, the technical problem to be solved is that the hemostatic material external application film is designed to be matched with a mixed self-adaptive structure with shape and pressure adaptability to rapidly expand and fill a penetrating wound, the hemostatic material external application film is wrapped on the surface of the mixed self-adaptive structure, elastic potential energy is released through a scissor-type hinge structure unit and an air bag is inflated by an inflating device to expand the air bag, the mixed self-adaptive structure deforms correspondingly according to the geometric shape of the wound and the elasticity of human tissues, the hemostatic material external application film is matched to fill the penetrating wound and be attached to the wound, rapid filling, blood coagulation and hemostasis are realized, and the life of a wounded soldier in battle is saved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a mixed hemostasis structure comprises a hemostasis material external application film and is characterized by also comprising a mixed self-adaptive structure; the hybrid self-adaptive structure consists of an air bag, an inflating device and a self-adaptive scissor-type hinge unfolding structure, wherein the inflating device is connected to the upper end of the air bag and can inflate or deflate air into or out of the air bag, and the self-adaptive scissor-type hinge unfolding structure is positioned in the air bag; the self-adaptive scissor-type hinge unfolding structure consists of a scissor-type hinge structure unit and a support rod; the shear type hinge structure units are distributed in a layered mode, n shear type hinge structure units are arranged on each layer, and n is more than or equal to 3 and less than or equal to 12; the scissor hinge structure unit consists of a scissor hinge unit and an elastic element; the inner end of the scissor hinge structure unit is fixed on the support rod; the supporting rod consists of a supporting rod scissor-type hinge unit and a supporting rod elastic element; the lower end of the supporting rod is fixed with the bottom of the air bag.
The air bag has a large elastic modulus, can restrain the scissors-type hinge structure unit to enable the scissors-type hinge structure unit to contract, is wrapped at the outer end of the scissors-type hinge structure unit without being connected with the scissors-type hinge structure unit, the upper part of the scissors-type hinge structure unit is hermetically connected with an inflating device, the lower part of the scissors-type hinge structure unit is fixedly connected with the supporting rod, and the hemostatic material external application film is fixedly adhered outside the air bag.
The inflator controls the gas pressure inside the airbag according to the blood pressure.
The scissor hinge unit is formed by hinging the centers of two rod pieces; the rod pieces of the adjacent scissor hinge units are connected in a hinged manner; and two ends of the elastic element are respectively connected to the connecting hinges of the adjacent scissor hinge units. The elastic element stores elastic potential energy under the action of external force, and the unfolding scissor-type hinge structure unit can be driven by releasing the elastic potential energy.
The support rod shear hinge units are hinged by two support rod pieces at the center through a pin shaft, the adjacent support rod shear hinge units are hinged, and two ends of the support rod elastic element are respectively connected to the connecting hinges of the adjacent support rod shear hinge units. The supporting rod scissor hinge unit can be folded under the action of external force, so that the size of the hemostasis structure can be reduced, and the storage capacity of the hemostasis device is improved.
The utility model provides a collapsible mixed hemostasis device of injection formula, includes the syringe and is located the hemostasis structure of syringe, its characterized in that: the hemostatic structure comprises a hemostatic material outer coating film and a mixed self-adaptive structure, the mixed self-adaptive structure consists of an air bag, an inflating device and a self-adaptive scissor hinge unfolding structure, the inflating device is connected to the upper end of the air bag and can inflate or deflate air into or out of the air bag, and the self-adaptive scissor hinge unfolding structure is positioned in the air bag; the self-adaptive scissor-type hinge unfolding structure consists of a scissor-type hinge structure unit and a support rod; the shear type hinge structure units are distributed in a layered mode, n shear type hinge structure units are arranged on each layer, and n is more than or equal to 3 and less than or equal to 12; the scissor hinge structure unit consists of a scissor hinge unit and an elastic element; the inner end of the scissor hinge structure unit is fixed on the support rod; the supporting rod consists of a supporting rod scissor-type hinge unit and a supporting rod elastic element; the lower end of the supporting rod is fixed with the bottom of the air bag.
The front end of the syringe is provided with a reaming blade, and when the wound is small, the wound is cut to place the hemostatic device.
The hemostatic material outer coating film is coated outside the mixed self-adaptive structure, and the hemostatic material outer coating film can be contacted with the wound surface and plays a role of pressing by releasing elastic potential energy and inflating and expanding the air bag through the shear hinge structure unit, so that hemostasis and blood coagulation are realized.
The elastic potential energy is released by the scissor-type hinge structure unit, the pressure in the air bag is adjusted, the flexibility of the air bag and the hemostatic material outer dressing film is matched, the geometric adaptability of the penetrated wound can be realized, and the self-adaptive filling can be realized according to the shape of the wound.
The pressure intensity of the air bag can be adjusted according to the blood pressure and the elasticity of human tissues through the inflating device to be balanced with the blood pressure, so that different requirements on the wound hemostasis pressure are met, and the pressure self-adaptability is realized.
The expansion of the scissor hinge structure unit can be inhibited through the air bag, and the injection and the extraction of the hemostasis structure are convenient; after the air bag is inflated and expanded, the scissor-type hinge structural units are unfolded to provide support for the air bag, the support capacity of the air bag is improved, and the scissor-type hinge structural units and the air bag have complementary functions.
The elastic potential energy released by the elastic element of the supporting rod drives the supporting rod to unfold, thereby ensuring that the hemostatic structure has enough supporting area.
When the hemostasis is completed, the pressure on the wound can be reduced by adjusting the air pressure in the air bag, so that the wound tissue can be subjected to blood again to prevent the tissue necrosis near the wound.
The foldable hybrid hemostatic structure comprises the following use schemes: the collapsible hybrid hemostatic structure exists in a collapsed state, a normal use state, and a free expanded state. In the initial contraction state, the foldable hybrid hemostatic structure is stored in the injector; under the normal use state, the mixed self-adaptive structure deforms correspondingly according to the shape of the wound, so that the hemostatic material external application film is tightly attached to the surface of the wound; in the free deployment state, the hybrid adaptive deployment structure is constrained by the airbag. The collapsible mixing hemostatic structure is stored in a syringe prior to use. When the wound is small, the wound is cut by a chambering blade at the front end of the injector, then the hemostatic structure is injected into the wound, the elastic potential energy of the support rod elastic element is released, and the hemostatic structure is driven to expand axially; the air charging device is opened to charge air to the air bag so as to drive the hemostatic material outer dressing film to be expanded to be contacted with the wound surface, the elastic element releases elastic potential energy, the scissor-type hinge structure unit is driven to expand along the radial direction to provide support for the air bag, the air charging device has a pressure detection function, and the air charging is stopped when the pressure meets the wound pressing hemostasis condition, so that the hemostasis function is realized. The air pressure in the air bag is kept, and the pressure of the air bag is adjusted timely to protect the tissues near the wound. After the hemostatic effect is achieved, the gas in the air bag is released, the mixed self-adaptive structure shrinks, the mixed hemostatic structure is taken out of the wound, and the mixed hemostatic structure is restored to a free expansion state.
Drawings
FIG. 1 is a schematic view of an injectable collapsible hybrid hemostatic device;
FIG. 2 is a view showing an initial folded state of the hemostatic material dressing film;
FIG. 3 is a state diagram of the application of the hemostatic material dressing membrane;
FIG. 4 is a hybrid adaptive architecture diagram;
FIG. 5 is a diagram of an adaptive scissor-hinge deployment configuration;
FIG. 6 is a diagram of a scissor-hinge construction unit;
FIG. 7 is a diagram of a scissor hinge unit;
FIG. 8 is a cross-sectional view of the scissor hinge unit;
FIG. 9 is a view showing the structure of the support bar;
FIG. 10 is a diagram of a scissor-hinge structural unit of a support bar;
FIG. 11 is a connection diagram of adjacent support rod scissor hinge structural units;
FIG. 12 is a schematic view of a pin;
FIG. 13 is a diagram of an initial collapsed state of the collapsible hybrid hemostatic structure;
FIG. 14 is a diagram illustrating a normal use of the collapsible hybrid hemostatic structure;
fig. 15 is a free-unfolding state view of a foldable hybrid hemostatic structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the injection type foldable mixing hemostatic device is composed of an injector 1, a hemostatic material coating film 2 and a mixing adaptive structure 3. At the front end of the syringe 1 there is a chambering blade 16, which cuts the wound to place the hemostatic device when the wound is small. Fig. 2 and 3 show an initial folded state and a state of use of the hemostatic material outer coating film 2, respectively, and the hemostatic material outer coating film 2 has a certain flexibility and can be expanded by blood (water). As shown in fig. 4, the hybrid adaptive structure 3 is composed of an airbag 4, an inflator 5, and an adaptive scissor-hinge deployment structure 6. The hemostatic material coating film is stuck and fixed outside the air bag 4. The airbag 4 has a large elastic modulus, and can restrain the scissor-hinge structure unit 7 to contract. The lower end of the air bag 4 is fixedly connected with the support rod 6, and the upper end is hermetically connected with the inflating device 5. The inflator 5 may inflate or deflate the air bladder and control the pressure of the air in the air bladder according to the blood pressure. An adaptive scissor deployment structure 6 is located within the airbag 4. As shown in fig. 5, the adaptive scissor-hinge deployment structure 6 is composed of a scissor-hinge structure unit 7 and a support rod 8. The scissor hinge structure units 7 are distributed in a layered manner, the inner ends of the scissor hinge structure units are fixed on the support rods 8, and 6 scissor hinge structure units are arranged on each layer. As shown in fig. 6, the scissor-hinge structure unit is composed of a scissor-hinge unit 9 and an elastic element 10, and the elastic element 10 stores elastic potential energy under the action of external force and can drive the unfolding of the scissor-hinge structure unit by releasing the elastic potential energy. As shown in fig. 7, the scissor-hinge unit 9 is formed by two rods 11 hinged centrally. As shown in fig. 8, the rods 11 of adjacent scissor units 9 are connected by hinges, and the two ends of the elastic element 10 are connected to the connecting hinges of the adjacent scissor units respectively. As shown in fig. 9, the supporting rod is composed of a supporting rod scissor-joint unit 12 and a supporting rod elastic element 13, and the hemostatic structure can be folded and extended along the axial direction by storing and releasing elastic potential energy through the supporting rod elastic element 13, so that the storage capacity of the hemostatic device is improved. As shown in fig. 10, the support bar scissor hinge unit is formed by two support bar bars 14 hingedly connected at the center by a pin 15. As shown in fig. 11, the rod members 14 of the scissors-type hinge units of the adjacent support rods are connected by hinges, and two ends of the elastic member 13 of the support rod are respectively connected to the connecting hinges of the scissors-type hinge units of the adjacent support rods. Fig. 12 shows a construction of a pin 15, the inner end of which is fixed to the end of the pin.
The foldable hybrid hemostatic structure is produced and used as follows: the hemostatic material coating film 2 is stuck and fixed on the outer side of the air bag 4 in the mixed adaptive structure and is stored in the injector together, at the moment, the elastic element 10 and the support rod elastic element 13 store elastic potential energy, and the foldable mixed hemostatic structure is in an initial contraction state (as shown in fig. 13). When the foldable hybrid hemostatic structure is used, the foldable hybrid hemostatic structure is injected into a wound, when the wound is small, the wound is cut by the reaming blade at the front end of the injector, and then the hemostatic structure is injected into the wound, so that the foldable hybrid hemostatic structure is converted into a normal use state as shown in fig. 14, wherein 17 is human tissue. The elastic element 13 of the supporting rod releases elastic potential energy to drive the hemostatic structure to expand along the axial direction; the air charging device is opened to charge air to the air bag so as to drive the hemostatic material outer coating film 2 to be in contact with the wound surface, the elastic element 10 releases elastic potential energy, the scissor-type hinge structure unit is driven to expand along the radial direction to provide support for the air bag 4, the air charging device 5 has a pressure detection function, and the air charging is stopped when the pressure meets the wound pressing hemostasis condition, so that the rapid hemostasis function is realized, and meanwhile, the self-adaptive requirements on shape and pressure can also be met. The foldable hybrid hemostatic structure is taken out from the wound after achieving the hemostatic effect, and automatically returns to the freely unfolded state of the foldable hybrid hemostatic structure as shown in fig. 15 after the restriction of the foldable hybrid hemostatic structure is released.
Claims (9)
1. A foldable hybrid hemostatic structure comprising a hemostatic material overcoat film (2), characterized in that: the self-adaptive airbag inflation device is characterized by further comprising a hybrid self-adaptive structure (3), wherein the hybrid self-adaptive structure (3) comprises an airbag (4), an inflation device (5) and a self-adaptive scissor hinge unfolding structure (6), the inflation device (5) is connected to the upper end of the airbag (4) and can inflate or deflate the airbag, and the self-adaptive scissor hinge unfolding structure (6) is located in the airbag (4) and contracts under the restraint of the airbag; the self-adaptive scissor-type hinge unfolding structure (6) consists of a scissor-type hinge structure unit (7) and a supporting rod (8); the shear hinge structural units (7) are distributed in a layered manner, and each layer is provided with n layers, wherein n is more than or equal to 3 and less than or equal to 12; the scissor-type hinge structure unit (7) consists of a scissor-type hinge unit (9) and an elastic element (10); the inner end of the scissor-type hinge structure unit (7) is fixed on the support rod (8); the supporting rod (8) consists of a supporting rod shear-type hinge unit (12) and a supporting rod elastic element (13); the lower end of the support rod (8) is fixed with the bottom of the air bag.
2. The foldable hybrid hemostatic structure of claim 1, wherein: the air bag (4) is wrapped at the outer end of the scissor hinge structure unit (7), the upper part of the air bag (4) is hermetically connected with the inflating device, the lower part of the air bag (4) is fixedly connected with the supporting rod, and the hemostatic material external application film is fixedly adhered outside the air bag (4).
3. The foldable hybrid hemostatic structure of claim 1, wherein: the inflator (5) controls the gas pressure in the airbag according to the blood pressure.
4. The foldable hybrid hemostatic structure of claim 1, wherein: the scissor-type hinge unit (9) is formed by hinging the centers of two rod pieces (11); the rod pieces (11) of the adjacent scissor hinge units (9) are connected through hinges; two ends of the elastic element (10) are respectively connected to the connecting hinges of the adjacent scissor hinge units (9).
5. The foldable hybrid hemostatic structure of claim 1, wherein: the supporting rod shear hinge units (12) are hinged at the centers of two supporting rod pieces (14) through pin shafts (15), the adjacent supporting rod shear hinge units (12) are hinged, and two ends of the supporting rod elastic element (13) are respectively connected to the connecting hinges of the adjacent supporting rod shear hinge units (12).
6. The utility model provides a collapsible mixed hemostasis device of injection formula, includes syringe and the collapsible mixed hemostasis structure that is located the syringe which characterized in that: the hemostatic structure comprises a hemostatic material outer coating film (2) and a mixed self-adaptive structure (3), wherein the mixed self-adaptive structure (3) consists of an air bag (4), an inflating device (5) and a self-adaptive scissor-hinge unfolding structure (6), the inflating device (5) is connected to the upper end of the air bag (4) and can inflate or deflate air into the air bag, and the self-adaptive scissor-hinge unfolding structure (6) is positioned in the air bag (4); the self-adaptive scissor-type hinge unfolding structure (6) consists of a scissor-type hinge structure unit (7) and a supporting rod (8); the shear hinge structural units (7) are distributed in a layered manner, and each layer is provided with n layers, wherein n is more than or equal to 3 and less than or equal to 12; the scissor-type hinge structure unit (7) consists of a scissor-type hinge unit (9) and an elastic element (10); the inner end of the scissor-type hinge structure unit (7) is fixed on the support rod (8); the supporting rod (8) consists of a supporting rod shear-type hinge unit (12) and a supporting rod elastic element (13); the lower end of the support rod (8) is fixed with the bottom of the air bag.
7. An injectable collapsible hybrid hemostatic device according to claim 6, wherein: the scissor-type hinge unit (9) is formed by hinging the centers of two rod pieces (11); the rod pieces (11) of the adjacent scissor hinge units (9) are connected through hinges; two ends of the elastic element (10) are respectively connected to the connecting hinges of the adjacent scissor hinge units (9).
8. An injectable collapsible hybrid hemostatic device according to claim 6, wherein: the supporting rod shear hinge units (12) are hinged at the centers of two supporting rod pieces (14) through pin shafts (15), the adjacent supporting rod shear hinge units (12) are hinged, and two ends of the supporting rod elastic element (13) are respectively connected to the connecting hinges of the adjacent supporting rod shear hinge units (12).
9. An injectable collapsible hybrid hemostatic device according to claim 6, wherein: the front end of the injector (1) is provided with a reaming blade (16).
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| CN201811023675.2A CN109091195B (en) | 2018-09-03 | 2018-09-03 | Foldable mixed hemostasis structure and hemostasis device |
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| CN201811023675.2A CN109091195B (en) | 2018-09-03 | 2018-09-03 | Foldable mixed hemostasis structure and hemostasis device |
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| CN104847163B (en) * | 2015-03-25 | 2017-01-25 | 东南大学 | Assembly-free hinge-locked foldable tent |
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