CN109009307B - Circular-arc elastic plate hemostasis structure, device and method - Google Patents
Circular-arc elastic plate hemostasis structure, device and method Download PDFInfo
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- CN109009307B CN109009307B CN201811021199.0A CN201811021199A CN109009307B CN 109009307 B CN109009307 B CN 109009307B CN 201811021199 A CN201811021199 A CN 201811021199A CN 109009307 B CN109009307 B CN 109009307B
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- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12136—Balloons
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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
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Abstract
The invention discloses a circular-arc elastic plate hemostasis structure, a device and a method. The self-adaptive elastic plate unfolding structure comprises elastic plates and clamping plates, wherein the elastic plates are fixed on the clamping plates and distributed in a layered mode, one elastic plate is arranged on each layer, the elastic plates are arranged according to a certain angle difference theta, the geometric line of each elastic plate is an arc, and the radius of the arc is R. The hemostatic material coating film is fixed on the outer side of the elastic plate in a sticking way. Before use, the circular arc elastic plate hemostasis structure is stored in the injector, and when the self-adaptive elastic plate hemostasis structure is used, the hemostasis structure is injected into a wound, the self-adaptive elastic plate unfolding structure releases elastic potential energy, the elastic potential energy is radially expanded, and a hemostasis material is driven to be attached to the wound surface, so that a rapid hemostasis function is realized.
Description
Technical Field
The invention relates to a circular arc elastic plate hemostasis structure, a hemostasis device and a hemostasis method, which are used for hemostasis treatment of penetrating wounds in a battlefield.
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
The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the arc elastic plate hemostasis structure, the device and the method with shape and pressure adaptability are provided. The invention sticks the hemostatic material coating film on the surface of the self-adaptive elastic plate unfolding structure, compresses the self-adaptive elastic plate unfolding structure to store energy before use, releases elastic strain energy through the elastic plate to unfold the self-adaptive elastic plate unfolding structure when in use, realizes shape self-adaptation according to the geometric shape of a wound and releases corresponding elastic strain energy according to blood pressure to realize pressure self-adaptation, drives the hemostatic material coating film to be attached to the wound surface, realizes rapid filling, blood coagulation and hemostasis, and saves the life of the soldier in battle.
The technical solution of the invention is as follows:
an arc elastic plate hemostatic structure, comprising: the hemostatic material external application film and the self-adaptive elastic plate unfolding structure; the self-adaptive elastic plate unfolding structure is expanded along the radial direction to provide support for the hemostatic material external application film, and the hemostatic material external application film is driven to be attached to the wound surface to realize hemostasis.
The self-adaptive elastic plate unfolding structure comprises a plurality of elastic plates and two clamping plates, wherein two ends of each elastic plate respectively penetrate through the two clamping plates and are distributed in a layered mode, and each layer of elastic plate is provided with one elastic plate.
The elastic plate slides in the clamping plate, and in a contraction state, the elastic plate is in a full circle shape, stores strain energy, and releases the strain energy to provide power for the expansion of the self-adaptive elastic plate in the radial direction.
The elastic plates of adjacent layers are parallel and opposite to each other.
The elastic plate and the clamping plate are both made of elastic materials.
The elastic modulus of the elastic material adopted by the elastic plate is in a range of 50-150 GPa.
The geometric linear of the elastic plate is a semicircular arc.
The hemostatic material coating film expands when meeting water.
An injection type circular arc elastic plate hemostasis device comprises an injector, a hemostasis structure, a hemostasis material outer coating film and a self-adaptive elastic plate unfolding structure, wherein the hemostasis structure is positioned in the injector; the self-adaptive elastic plate unfolding structure is expanded along the radial direction to provide support for the hemostatic material external application film, and the hemostatic material external application film is driven to be attached to the wound surface to realize hemostasis.
The self-adaptive elastic plate unfolding structure is a cylindrical whole and comprises a plurality of elastic plates and two clamping plates, wherein two ends of each elastic plate penetrate through the clamping plates and are distributed in a layered manner, and each layer of each elastic plate is provided with one elastic plate; the elastic plate slides in the clamping plate, and in a contraction state, the elastic plate is in a full circle shape, stores strain energy, and releases the strain energy to provide power for the expansion of the self-adaptive elastic plate in the radial direction.
The elastic plates of the adjacent layers are parallel and oppositely arranged, the elastic plates and the clamping plates are made of elastic materials, the elastic modulus range of the elastic materials adopted by the elastic plates is 50-150 GPa, and the geometric line of the elastic plates is a semicircular arc.
The front end of the injector is provided with a reaming blade, and when a wound is small, the wound is cut to place a hemostatic structure.
A hemostasis method realized based on an injection type reticular hemostasis device comprises the following steps:
(1) injecting the hemostatic structure into the wound by using an injector, and when the wound is small, expanding the wound by using a reaming blade at the front end of the injector (1), and then injecting the hemostatic structure into the wound;
(2) the elastic plate and the clamping plate release elastic potential energy to drive the self-adaptive elastic plate unfolding structure to expand along the radial direction, so that the hemostatic material outer coating film is supported and driven to cling to the wound surface, and hemostasis is realized.
Compared with the prior art, the invention has the beneficial effects that:
(1) adopts an inflatable and elastic unfolding structure, and can be rapidly expanded to fill the penetrating wound. Compared with the existing methods of compression hemostasis, firing hemostasis, grease and gauze filling hemostasis and the like, the mixed hemostasis structure has the effect of quick filling hemostasis.
(2) The unfolding structure has the self-adaptive characteristic of geometric shape, is matched with the blood-sucking expansion characteristic of the hemostatic material, and has uniform pressure on the wound and good wound surface fitting performance.
(3) The elastic modulus of the elastic material adopted by the polygonal units and the elastic hinges is in a range of 50-150 Gpa, so that the hemostatic effect is met and proper acting force is provided for penetrating wounds.
(4) Can provide continuous extrusion force for the wound surface, the extrusion pressure can be adjusted, and the adjusting range is large (0-16 kPa)
(5) Can be repeatedly unfolded and folded to prevent wound tissue necrosis.
(6) Is convenient for storage and can be stored for a long time.
Drawings
FIG. 1 is a schematic view of an injection-type hemostatic device with a circular-arc elastic plate;
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 view of the expanded structure of the adaptive elastic plate;
FIG. 5 is a view showing the construction of the elastic plate;
FIG. 6 is a view of the initial contraction of the hemostatic structure of the circular arc elastic plate;
FIG. 7 is a view of the hemostatic structure of the circular arc elastic plate in normal use;
fig. 8 is a free unfolding state diagram of the hemostatic structure of the arc elastic plate.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
Excessive blood loss caused by penetrating injury in a battlefield is one of important factors causing casualties, but a good and effective penetrating injury hemostasis method is not available. 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 still far from meeting the emergency requirements of penetration hemostasis due to the limitation of time-consuming 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. The invention designs that a hemostatic material is matched with an unfolding structure to rapidly expand and fill a penetrating wound, the hemostatic material is wrapped outside the unfolding structure, the unfolding is realized by depending on the elasticity of the unfolding structure, the penetrating wound is filled and attached to a wound surface by the aid of the geometric shape self-adaption characteristic of the wound of the unfolding structure and the blood absorption expansion characteristic of the hemostatic material, so that rapid filling and hemostasis are realized, and the life of a wounded soldier in combat is saved.
Aiming at the defects of the prior art, the invention provides a hemostasis structure based on an arc elastic plate, which is applied to hemostasis emergency treatment of battlefield penetrating injuries.
As shown in fig. 1, the hemostatic structure based on the circular arc elastic plate comprises: a hemostatic material external application film 2 and a self-adaptive elastic plate unfolding structure 3; the hemostatic material outer coating film 2 is coated outside the self-adaptive elastic plate unfolding structure 3, the self-adaptive elastic plate unfolding structure 3 expands along the radial direction to provide support for the hemostatic material outer coating film 2, so that the hemostatic material outer coating film 2 shown in fig. 2 is attached to a wound surface to stop bleeding, the hemostatic material outer coating film 2 expands when meeting water, and the hemostatic material outer coating film 2 is in a stretched state as shown in fig. 3.
As shown in fig. 4, the adaptive elastic plate unfolding structure 3 includes a plurality of elastic plates 4 and two clamping plates 5, wherein two ends of the elastic plates 4 respectively penetrate through the two clamping plates 5 and are distributed in layers, and each layer is provided with one elastic plate 4. The elastic plate 4 slides in the clamping plate 5, and in a contraction state, the elastic plate 4 is in a full circle shape, stores strain energy, and releases the strain energy to provide power for the radial expansion of the self-adaptive elastic plate unfolding structure 3 in an expansion state.
As shown in fig. 5 and 8, the geometric line of the elastic plate 4 is a semicircular arc. The elastic plates 4 of adjacent layers are arranged in parallel and opposite to each other. The elastic plate 4 and the clamping plate 5 are made of elastic materials, the elastic materials can be beryllium copper alloy, phosphor copper strips and other corrosion-resistant high-elasticity alloys, and the elastic modulus range of the elastic materials used by the elastic plate 4 and the clamping plate 5 is 50-150 GPa.
As shown in fig. 1, based on the hemostasis structure, the invention further provides an injection type circular arc elastic plate hemostasis device, which comprises an injector 1, a hemostasis structure located in the injector 1, a hemostasis material outer coating film 2 and a self-adaptive elastic plate deployment structure 3; the hemostatic material outer coating film 2 is coated outside the self-adaptive elastic plate unfolding structure 3, the self-adaptive elastic plate unfolding structure 3 expands along the radial direction to provide support for the hemostatic material outer coating film 2, and the hemostatic material outer coating film 2 is driven to be attached to the wound surface to realize hemostasis.
The front end of the injector 1 is provided with a reaming blade 6, and when the wound is small, the wound is cut to place a hemostatic structure.
Furthermore, the invention also provides a hemostasis method based on the injection type reticular hemostasis knot device, which comprises the following steps:
1. injecting the hemostatic structure into the wound by using the injector 1, wherein the hemostatic structure is in an initial contraction state when being in the injector 1, as shown in fig. 6, when the wound is small, the wound is firstly dilated by the reaming blade 6 at the front end of the injector 1, and then the hemostatic structure is injected into the wound;
2. as shown in fig. 7, which is a schematic view of the hemostasis structure during operation, the elastic plate 4 and the splint 5 release elastic potential energy to drive the adaptive elastic plate deployment structure 3 to expand radially, so as to provide support for the hemostatic material outer coating film 2, and drive the hemostatic material outer coating film 2 to cling to a wound surface, thereby achieving hemostasis.
The invention provides a hemostasis structure, a hemostasis device or a hemostasis method, which has the working principle that: the hemostatic structure exists in an initial contracted state, a normal use state and a free-deployed state. In the initial contraction state, the circular arc elastic plate hemostasis structure is stored in the injector. Under the normal use state, the unfolding structure of the arc elastic plate 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; under the free expansion state, the circular arc elastic plate hemostasis structure is in a zero potential energy state.
The production process is converted from the free expansion state to the initial contraction state, the circular arc elastic plate hemostatic structure is stored in the injector to store elastic strain energy, and at the moment, the elastic plate hemostatic structure is in the initial contraction state, as shown in fig. 6.
The use process is converted from an initial contraction state to a normal use state, the circular arc elastic plate hemostatic structure is injected into a wound through an injection device, when the wound is small, the wound is cut through a chambering blade at the front end of the injector, then the hemostatic structure is injected into the wound, the elastic plate releases corresponding elastic strain energy according to the shape of the wound and the pressure, the self-adaptive elastic plate unfolding structure expands along the radial direction, as shown in fig. 7, the circular arc elastic plate hemostatic structure is in the normal use state, the elastic plate 4 releases corresponding elastic strain energy according to the shape of the wound and the pressure, the self-adaptive elastic plate unfolding structure expands along the radial direction, and the hemostatic material outer coating film 2 is driven to be attached to the wound, so that the rapid hemostatic function is realized, and meanwhile, the requirements of shape and pressure self-adaptive force are met. After the hemostatic effect is achieved, the circular arc elastic plate hemostatic structure is taken out from the wound, the taking-out process is converted from the normal use state to the free expansion state, as shown in fig. 8, the circular arc elastic plate hemostatic structure is in the free expansion state, and the elastic strain energy of the circular arc elastic plate hemostatic structure is zero.
Through self-adaptation elastic plate development structure outsourcing hemostatic material overcoat membrane, rely on the elastic plate release elasticity strain energy to make hemostatic material overcoat membrane and wound surface of a wound contact and play the effect of pressing, realize hemostasis blood coagulation. The elastic strain energy released by the elastic plate is matched with the flexibility of the hemostatic material external application film, so that the geometric adaptability of the penetrating wound can be realized, and the self-adaptive filling can be realized according to the shape of the wound. The elastic plate can release corresponding strain energy according to the blood pressure and the elasticity of human tissues to be balanced with the strain energy, so that different requirements on the wound hemostasis pressure are met, and the elastic plate has pressure self-adaptability.
The embodiment proposed by the invention is as follows:
the preferred scheme is as follows: when the hemostatic material external application film is unfolded into a cylinder shape, the diameter is 10 cm-12 cm, and the height is 13 cm-15 cm; the diameter of the elastic plate 4 after being unfolded is 8-12 cm, the height is 0.8-1.2 cm, and the thickness is 0.2-0.4 mm; the reaming blades are 3-4 pieces, and each piece is 1-1.2 cm long. The inner diameter of the injector is about 1.8-2.2 cm, so that the hemostatic effect is better;
the further preferred scheme is as follows: when the hemostatic material external application film is unfolded into a cylinder shape, the diameter is 12cm, and the height is 15 cm; the elastic plate 4: the diameter is 10cm, the height is 1 cm and the thickness is 0.3 mm after the unfolding; reaming the blade: the reaming blades were 4 pieces each 1.2 cm long. The syringe inner diameter was 2 cm.
The elastic modulus of the elastic materials adopted by the elastic plate and the splint 5 is in the range of 50-150 Gpa, so as to simultaneously satisfy the hemostatic effect and provide proper acting force for penetrating the wound.
The unfolding structure has the characteristic of geometric shape self-adaption, can be suitable for penetrating wounds with the maximum wound diameter of 10cm, and can provide continuous extrusion force for wound surfaces. The hemostatic material is matched with the blood-sucking expansion characteristic, so that the pressure on the wound is uniform, the wound surface has good fitting performance, and continuous extrusion force can be provided for the wound surface. Compared with the existing methods of compression hemostasis, firing hemostasis, grease and gauze filling hemostasis and the like, the method has the effect of rapid filling hemostasis.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (9)
1. The utility model provides a circular arc elastic plate hemostasis structure which characterized in that includes: a hemostatic material external application film (2) and a self-adaptive elastic plate unfolding structure (3); the self-adaptive elastic plate unfolding structure (3) is radially expanded to provide support for the hemostatic material outer coating film (2), and the hemostatic material outer coating film (2) is driven to be attached to the wound surface to realize hemostasis;
the self-adaptive elastic plate unfolding structure (3) comprises a plurality of elastic plates (4) and two clamping plates (5), wherein two ends of each elastic plate (4) respectively penetrate through the two clamping plates (5) and are distributed in a layered mode, and each layer of each elastic plate (4) is arranged;
the elastic plate (4) slides in the clamping plate (5), when in a contraction state, the elastic plate (4) is in a full circle shape, stores strain energy, and releases the strain energy to provide power for the radial expansion of the self-adaptive elastic plate unfolding structure (3) when in expansion.
2. The circular arc elastic plate hemostatic structure according to claim 1, wherein: the elastic plates (4) of adjacent layers are parallel and opposite to each other.
3. The circular arc elastic plate hemostatic structure according to claim 1, wherein: the elastic plate (4) and the clamping plate (5) are both made of elastic materials.
4. The circular arc elastic plate hemostatic structure according to claim 1, wherein: the elastic modulus of the elastic materials adopted by the elastic plate (4) and the clamping plate (5) ranges from 50GPa to 150 GPa.
5. The circular arc elastic plate hemostatic structure according to any one of claims 2 to 4, wherein: the geometric linear of the elastic plate (4) is a semicircular arc.
6. The circular arc elastic plate hemostatic structure according to claim 1, wherein: the hemostatic material external application film (2) expands when meeting water.
7. The utility model provides an injection formula circular arc elastic plate hemostasis device which characterized in that: the self-adaptive elastic plate hemostatic device comprises an injector (1) and a hemostatic structure positioned in the injector (1), wherein the hemostatic structure comprises a hemostatic material outer coating film (2) and a self-adaptive elastic plate unfolding structure (3); the self-adaptive elastic plate unfolding structure (3) is radially expanded to provide support for the hemostatic material outer coating film (2), and the hemostatic material outer coating film (2) is driven to be attached to the wound surface to realize hemostasis;
the self-adaptive elastic plate unfolding structure (3) is a cylindrical whole and comprises a plurality of elastic plates (4) and two clamping plates (5), two ends of each elastic plate (4) penetrate through the clamping plates (5) and are distributed in a layered mode, and each layer of each elastic plate (4) is arranged; the elastic plate (4) slides in the clamping plate (5), when in a contraction state, the elastic plate (4) is in a full circle shape, stores strain energy, and releases the strain energy to provide power for the radial expansion of the self-adaptive elastic plate unfolding structure (3) when in expansion.
8. The hemostatic device with injection-type arc elastic plate according to claim 7, wherein: the elastic plates (4) of adjacent layers are parallel and oppositely arranged, the elastic plates (4) and the clamping plates (5) are both made of elastic materials, the elastic modulus range of the elastic materials adopted by the elastic plates (4) is 50-150 GPa, and the geometric line of the elastic plates (4) is a semicircular arc.
9. The hemostatic device according to claim 7 or 8, wherein the hemostatic device comprises: the front end of the injector (1) is provided with a hole expanding blade (6), and when a wound is small, the wound is cut to place a hemostatic structure.
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| CN106137296A (en) * | 2014-11-07 | 2016-11-23 | 王洛 | Penetrating wound plugging device with fixing band |
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| US5181922A (en) * | 1991-07-29 | 1993-01-26 | Escalon Ophthalmics, Inc. | Method for indenting the ocular coats of an eye |
| CN2254330Y (en) * | 1996-04-12 | 1997-05-21 | 王永武 | Plugging device for patent arterial ductus |
| US6056770A (en) * | 1997-02-11 | 2000-05-02 | Biointerventional Corporation | Expansile device for use in blood vessels and tracts in the body and method |
| US6743196B2 (en) * | 1999-03-01 | 2004-06-01 | Coaxia, Inc. | Partial aortic occlusion devices and methods for cerebral perfusion augmentation |
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| BRPI0603437A2 (en) * | 2006-06-06 | 2010-07-06 | Luiz Gonzaga Granja Jr | extraluminal stent anastomosis prosthesis |
| CN101450000A (en) * | 2007-12-04 | 2009-06-10 | 陈继远 | Uterus hemostasia sleeve and use method thereof |
| CN201542679U (en) * | 2009-11-30 | 2010-08-11 | 苏州大学附属第一医院 | Vagina packer |
| CA2820775A1 (en) * | 2011-01-13 | 2012-07-19 | Innovia Llc | Endoluminal drug applicator and method of treating diseased vessles of the body |
| CN102302399A (en) * | 2011-06-29 | 2012-01-04 | 詹娟 | Vaginal packer |
| CN104173082A (en) * | 2014-09-11 | 2014-12-03 | 王雯 | Wound closing device |
| CN107789022B (en) * | 2016-08-31 | 2019-12-20 | 王洛 | Chain type quick hemostasis device |
| CN106510786A (en) * | 2016-11-29 | 2017-03-22 | 西安医学院第二附属医院 | Compression hemostasis apparatus for anus wound part |
| CN107050632A (en) * | 2017-06-02 | 2017-08-18 | 江苏昌吉永生物科技股份有限公司 | A kind of emergency hemostatic apparatus |
| CN107252335B (en) * | 2017-06-28 | 2023-02-28 | 王洛 | Hemostasis device and injector for pushing hemostasis device |
| CN108294797B (en) * | 2018-01-03 | 2019-09-03 | 王洛 | The manufacturing method of fast hemostasis device |
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| CN106137296A (en) * | 2014-11-07 | 2016-11-23 | 王洛 | Penetrating wound plugging device with fixing band |
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