CN109044462B - Foldable hemostasis structure based on spiral spring and hemostasis device - Google Patents
Foldable hemostasis structure based on spiral spring and hemostasis device Download PDFInfo
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- CN109044462B CN109044462B CN201811023714.9A CN201811023714A CN109044462B CN 109044462 B CN109044462 B CN 109044462B CN 201811023714 A CN201811023714 A CN 201811023714A CN 109044462 B CN109044462 B CN 109044462B
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- scissor
- hinge unit
- spiral spring
- type hinge
- hemostasis
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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 hemostasis structure based on a coil spring and a hemostasis device, wherein the hemostasis structure consists of a hemostasis material outer coating film and a self-adaptive coil spring unfolding structure. The self-adaptive spiral spring unfolding structure consists of a spiral spring and a supporting rod, and the spiral spring is fixed on the supporting rod. The support rod consists of a first scissor-type hinge unit, a second scissor-type hinge unit and a support rod elastic element. Before use, the spiral spring hemostasis structure is stored in the injector, and when the self-adaptive hemostatic structure is used, the hemostasis structure is injected into a wound, the spiral spring releases elastic potential energy, the self-adaptive spiral spring unfolding structure expands along the radial direction, and the hemostatic material outer coating film is driven to be attached to the wound surface, so that rapid hemostasis is realized.
Description
Technical Field
The invention relates to a novel transfixion hemostasis structure, in particular to a self-adaptive spiral spring hemostasis structure and an injection type spiral spring hemostasis device.
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 to design a transfixion hemostasis structure with shape and pressure adaptability aiming at the defects of the prior art. The self-adaptive spiral spring unfolding structure is compressed to store energy before use, the spiral spring releases elastic potential energy to unfold the self-adaptive spiral spring unfolding structure, the self-adaptive spiral spring unfolding structure deforms correspondingly according to the geometric shape of a wound to realize shape self-adaptation, the corresponding elastic potential energy is released according to blood pressure to realize pressure self-adaptation, the hemostatic material outer coating film is driven to be attached to the wound surface, and the rapid filling, blood coagulation and hemostasis are realized, so that the lives of soldiers injured in combat are saved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a coil spring hemostasis structure comprises a hemostasis material external application film and is characterized by also comprising a self-adaptive coil spring unfolding structure, wherein the self-adaptive coil spring unfolding structure consists of a coil spring and a support rod; the spiral springs are distributed in a layered mode, one in each layer and fixed on the supporting rod; the hemostatic material external application film is fixed at the outer end of the spiral spring; the supporting rod consists of a first scissor-type hinge unit, a second scissor-type hinge unit and a supporting rod elastic element; the first scissor hinge unit is formed by two rod pieces which are hinged and connected in the center; the second scissor-type hinge unit is composed of two rod pieces and a pin shaft, the two rod pieces are hinged at the center, and the pin shaft is positioned on the hinged point; the bottom end of the spiral spring is fixed on the pin shaft; the rod piece of the first scissor-type hinge unit is connected with the rod piece of the second scissor-type hinge unit through a connecting hinge, and two ends of the elastic element of the supporting rod are respectively connected; the first scissor hinge unit is hinged with the second scissor hinge unit. The volume of the hemostasis structure can be reduced by adopting the scissor hinge unit, and the storage capacity of the hemostasis device is improved.
The radius of the bottom of the spiral spring is R, the radius of the top of the spiral spring is R, and R is smaller than R.
The hemostatic material external application film is fixedly adhered to the outer end of the spiral spring.
The utility model provides an injection formula coil spring hemostasis device, includes the syringe and is located the hemostasis structure of syringe, its characterized in that: the hemostatic structure comprises a hemostatic material external application film and a self-adaptive spiral spring unfolding structure, wherein the self-adaptive spiral spring unfolding structure consists of a spiral spring and a support rod; the spiral springs are distributed in a layered mode, one in each layer and fixed on the supporting rod; the hemostatic material external application film is fixed at the outer end of the spiral spring; the supporting rod consists of a first scissor-type hinge unit, a second scissor-type hinge unit and a supporting rod elastic element.
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.
Through self-adaptation coil spring expansion structure outsourcing hemostatic material overcoat membrane, rely on coil spring release elastic 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 helical spring is matched with the flexibility of the hemostatic material external application film, so that 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 spiral spring 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 pressure self-adaptability is realized.
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.
The use scheme of the coil spring hemostasis structure is as follows: the coil spring hemostatic structure exists in a free expansion state, a normal use state and an initial contraction state. In the freely unfolded state, the spiral spring hemostasis structure is in a zero potential energy state; under the normal use state, the self-adaptive spiral spring unfolding 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 initial contraction state, the coil spring hemostasis structure is stored in the injector. The production process is converted from a free unfolding state to an initial contraction state, the self-adaptive spiral spring unfolding structure is wrapped with the hemostatic material external application film and stored in the injector, and the support rod is folded to store elastic potential energy. The use process is that the initial contraction state is converted into the normal use state, the coil spring hemostatic structure is injected into a wound through the injection device, when the wound is small, the wound is cut through the chambering blade at the front end of the injector, then the hemostatic structure is injected into the wound, the elastic potential energy is released by the elastic element of the supporting rod, and the self-adaptive coil spring unfolding structure is expanded along the axial direction; the spiral spring releases corresponding elastic strain energy according to the shape of the wound and the pressure applied to the wound, so that the self-adaptive spiral spring unfolding structure is radially expanded, and the hemostatic material outer coating film is driven to be attached to the wound surface, thereby realizing the rapid hemostasis function and simultaneously meeting the self-adaptive requirements of the shape and the pressure. The taking-out process is converted from a normal use state to a free expansion state, the coil spring hemostatic structure is taken out from the wound after the hemostatic effect is achieved, and the coil spring hemostatic structure automatically restores to a zero potential energy state.
Drawings
FIG. 1 is a schematic view of an injection type coil spring 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 view of the self-adaptive coil spring deployment;
FIG. 5 is a coil spring diagram;
FIG. 6 is a view of the support bar;
FIG. 7 is a diagram of a first scissor-hinge unit;
FIG. 8 is a diagram of a second scissor-hinge unit;
FIG. 9 is a schematic view of a scissor-hinge joint;
FIG. 10 is a view of the coil spring hemostatic structure in an initial contracted state;
FIG. 11 is a view of the coil spring hemostatic structure in normal use;
fig. 12 is a free-unfolding state diagram of the coil spring hemostatic structure.
Detailed Description
As shown in figure 1, the injection type coil spring hemostatic device consists of an injector 1, a hemostatic material coating film 2 and an adaptive coil spring unfolding structure 3. The syringe 1 has a reamer blade 11 at the front end to cut the wound for placement of 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 self-adaptive helical spring unfolding structure 3 is composed of helical springs 4 and support rods 5, the helical springs 4 are distributed in a layered manner, one for each layer, the bottom end of each layer is fixed on the support rod 5, and the hemostatic material external application film is fixed at the outer ends of the helical springs 4 in an adhering manner. As shown in fig. 5, the coil spring 4 has a bottom radius R and a top radius R without an external force. As shown in fig. 6, the support rod 5 is composed of a first scissor-hinge unit 6, a second scissor-hinge unit 7, and a support rod elastic member 8. As shown in fig. 7, the first scissor-hinge unit 6 is normally hinged at the center by two rods 9. As shown in fig. 8, the second scissor hinge unit 7 is hinged at the center by two rods 9 via a pin 10, and the bottom end of the coil spring is fixed to the pin 10. As shown in fig. 9, the rod members 9 of the adjacent scissor hinge units are connected by a connecting hinge, and two ends of the elastic member 8 of the support rod are respectively connected to the connecting hinges of the scissor hinge units of the adjacent support rod. The volume of the hemostasis structure can be reduced by adopting the scissor hinge unit on the supporting rod, and the storage capacity of the hemostasis device is improved.
The production and use processes of the coil spring hemostatic structure are as follows: during production, the hemostatic material coating film is wrapped outside the self-adaptive spiral spring unfolding structure and is stored in the injector together, the spiral spring 4 and the support rod elastic element 8 store elastic potential energy, and the spiral spring hemostatic structure is in an initial contraction state (as shown in fig. 10). When the wound-healing device is used, the spiral spring-type hemostatic structure is injected into a wound, 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, and the elastic potential energy of the support rod elastic element 8 is released to enable the hemostatic structure to expand axially; the spiral spring 4 releases elastic potential energy, and the self-adaptive spiral spring unfolding structure is unfolded along the radial direction. As shown in fig. 11, the coil spring hemostatic structure is in a normal use state, the coil spring 4 releases corresponding elastic strain energy according to the wound shape and the received pressure of the human tissue 12, the self-adaptive coil spring unfolding structure expands along the radial direction, and the hemostatic material outer coating film 2 is driven to be attached to the wound surface, so that the rapid hemostatic function is realized, and the self-adaptive requirements of shape and pressure can be met. After reaching the hemostatic effect, the coil spring hemostatic structure is taken out from the wound and automatically restored to the freely unfolded state. As shown in FIG. 10, the coil spring hemostatic structure is in a freely deployed state with zero elastic strain energy.
Claims (5)
1. A foldable hemostasis structure based on a spiral spring comprises a hemostasis material outer coating film (2) and is characterized by further comprising a self-adaptive spiral spring unfolding structure (3), wherein the self-adaptive spiral spring unfolding structure (3) consists of a spiral spring (4) and a supporting rod (5); the spiral springs (4) are distributed in a layered mode, one for each layer, and are fixed on the supporting rod (5); the hemostatic material external application film (2) is fixed at the outer end of the spiral spring (4); the supporting rod (5) consists of a first scissor-type hinge unit (6), a second scissor-type hinge unit (7) and a supporting rod elastic element (8); the first scissor-type hinge unit (6) is formed by two rod pieces (9) which are hinged and connected in the center; the second scissor-type hinge unit (7) is composed of two rod pieces (9) and a pin shaft (10), the two rod pieces (9) of the second scissor-type hinge unit (7) are hinged at the center, and the pin shaft (10) is positioned on the hinged point of the two rod pieces (9) of the second scissor-type hinge unit (7); the bottom end of the spiral spring (4) is fixed on the pin shaft (10); the rod piece (9) of the first scissor-type hinge unit (6) is connected with the rod piece (9) of the second scissor-type hinge unit (7) through a connecting hinge, and two ends of the supporting rod elastic element (8) are respectively connected to the connecting hinge of the first scissor-type hinge unit (6) and the second scissor-type hinge unit (7).
2. A coil spring based collapsible hemostasis structure as claimed in claim 1, wherein: the radius of the bottom of the spiral spring (4) is R, the radius of the top of the spiral spring is R, and R is smaller than R.
3. A coil spring based collapsible hemostasis structure as claimed in claim 1, wherein: the hemostatic material external application film is fixedly adhered to the outer end of the spiral spring (4).
4. The utility model provides an injection formula coil spring hemostasis device, includes the syringe and is located the hemostasis structure of syringe, its characterized in that: the hemostatic structure comprises a hemostatic material external application film (2) and a self-adaptive spiral spring unfolding structure (3), wherein the self-adaptive spiral spring unfolding structure (3) consists of a spiral spring (4) and a support rod (5); the spiral springs (4) are distributed in a layered mode, one for each layer, and are fixed on the supporting rod (5); the hemostatic material external application film (2) is fixed at the outer end of the spiral spring (4); the supporting rod (5) consists of a first scissor-type hinge unit (6), a second scissor-type hinge unit (7) and a supporting rod elastic element (8); the first scissor-type hinge unit (6) is formed by two rod pieces (9) which are hinged and connected in the center; the second scissor-type hinge unit (7) is composed of two rod pieces (9) and a pin shaft (10), the two rod pieces (9) of the second scissor-type hinge unit (7) are hinged at the center, and the pin shaft (10) is positioned on the hinged point of the two rod pieces (9) of the second scissor-type hinge unit (7); the bottom end of the spiral spring (4) is fixed on the pin shaft (10); the rod piece (9) of the first scissor-type hinge unit (6) is connected with the rod piece (9) of the second scissor-type hinge unit (7) through a connecting hinge, and two ends of the supporting rod elastic element (8) are respectively connected to the connecting hinge of the first scissor-type hinge unit (6) and the second scissor-type hinge unit (7).
5. The injectable helical spring hemostatic device of claim 4, wherein: the front end of the injector (1) is provided with a reaming blade (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811023714.9A CN109044462B (en) | 2018-09-03 | 2018-09-03 | Foldable hemostasis structure based on spiral spring and hemostasis device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811023714.9A CN109044462B (en) | 2018-09-03 | 2018-09-03 | Foldable hemostasis structure based on spiral spring and hemostasis device |
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| CN109044462A CN109044462A (en) | 2018-12-21 |
| CN109044462B true CN109044462B (en) | 2020-10-16 |
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