Trauma hemostatic dressing introducer instrument

Abstract

The application provides a trauma hemostatic dressing introduction device, which comprises a base body and a push injection mechanism. The base body is provided with an injection needle hole and a plurality of medicine storage channels. The plurality of medicine storage channels are arranged at intervals around a preset axis and are in communication with the injection needle hole. A diaphragm capable of being broken under external force is arranged in each medicine storage channel. The push injection mechanism is movably connected with the base body. The push injection mechanism can move relative to the base body to selectively correspond to one of the plurality of medicine storage channels and can make the medicine in the corresponding medicine storage channel break the diaphragm so that the medicine is shot out of the injection needle hole. The device is convenient and fast to use, can be used for hemostasis of wounds below the skin and has a wide range of use.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a wound hemostatic dressing delivery device. Background Technology

[0002] When engaging in outdoor training, exploration, or team building activities, accidental cuts or scrapes may occur. Deeper wounds require hemostasis to ensure personal safety. Typically, participants carry first-aid kits for stopping bleeding during outdoor activities. However, some wounds, due to their depth, require hemostasis below the skin's surface. Existing first-aid kits only provide superficial hemostasis, limiting their application. Summary of the Invention

[0003] This application provides a trauma hemostatic dressing delivery device to improve the above-mentioned problems.

[0004] The present invention is as follows:

[0005] To achieve the above objectives, this embodiment provides a traumatic hemostatic dressing delivery device, comprising:

[0006] The substrate is provided with an injection needle hole and multiple drug storage channels. The multiple drug storage channels are arranged at intervals around a preset axis and are all connected to the injection needle hole. Each drug storage channel is provided with a diaphragm that can be ruptured under external force.

[0007] The injection mechanism is movably connected to the substrate and can move relative to the substrate to selectively correspond to one of the plurality of drug storage channels, and can cause the drug in the corresponding drug storage channel to rupture the diaphragm so that the drug is ejected from the injection needle hole.

[0008] In one embodiment of the present invention, the injection mechanism includes a force-applying unit and a plurality of force-transmitting units, the force-applying unit being movably connected to the substrate; the plurality of force-transmitting units are respectively disposed in the plurality of drug storage channels, and the force-applying unit is used to cooperate with one of the plurality of force-transmitting units to discharge the drug in the corresponding drug storage channel from the injection needle hole through the force-transmitting unit.

[0009] In one embodiment of the present invention, the substrate includes a body, an outer cylinder, and an inner cylinder. The injection needle hole and multiple drug storage channels are all disposed on the body. Both ends of the outer cylinder and the inner cylinder are open. One end of the outer cylinder is connected to the body, and one end of the inner cylinder is connected to the body. The inner cylinder is disposed within the area enclosed by the outer cylinder. The inner cylinder and the outer cylinder together define an annular space. The ends of the multiple drug storage channels away from the injection needle hole are all located between the inner cylinder and the outer cylinder. A sealing membrane is provided at the end of each drug storage channel away from the injection needle hole. The force transmission unit is located between the sealing membrane and the diaphragm.

[0010] The force-applying unit is rotatably connected to both the outer cylinder and the inner cylinder around the preset axis. When the force-applying unit rotates relative to the substrate, it can rotate to a position corresponding to one of the plurality of drug storage channels, thereby transmitting external force to the force-transmitting unit.

[0011] In one embodiment of the present invention, the force-applying unit includes a turntable, a force-applying rod, a blade body, a first elastic element, a first force-transmitting head, a positioning block, a positioning rod, a positioning cam, and a second force-transmitting head;

[0012] The turntable is provided with a first mounting hole and a second mounting hole. The turntable is rotatably connected to the outer cylinder around the preset axis. The first mounting hole communicates with the annular space. The second mounting hole, the outer cylinder, and the inner cylinder are coaxially arranged. The force-applying rod is provided with a first guide hole and a second guide hole. The force-applying rod passes through the first mounting hole and is fixed relative to the turntable in the extension direction of the preset axis. The first guide hole communicates with the annular space and extends along the preset axis. The second guide hole is perpendicular to the preset axis. The blade body is slidably connected to the first guide hole in the extension direction of the preset axis. The blade body and the force-applying rod are fixed relative to each other in the circumferential direction of the axis of the first guide hole. One end of the first elastic member abuts against the blade body, and the other end abuts against the base, for giving the blade body a tendency to move away from the drug storage channel. The first force-transmitting head is provided with a guiding inclined surface and is connected to the blade body.

[0013] The positioning block is provided with a communicating third guide hole and a fourth guide hole. The positioning block is fixed in the second mounting hole. The third guide hole extends in a direction perpendicular to the preset axis, and the fourth guide hole extends in the extension direction of the preset axis. The positioning rod passes through the fourth guide hole and is slidably connected to the fourth guide hole on the preset axis. The positioning rod is also slidably connected to the fourth guide hole around the preset axis. The positioning cam is fixedly connected to the positioning rod and is used to move in the third guide hole under the drive of the positioning rod. The second force transmission head is provided with a coaxial first guide cone surface and a second guide cone surface. The second force transmission head is slidably connected to the third guide hole in the extension direction of the third guide hole, and the first guide cone surface and the second guide cone surface are arranged in the radially outward direction of the outer cylinder.

[0014] The inner cylinder has multiple connecting holes on its wall, which are spaced apart around the circumference of the inner cylinder. When the turntable moves the force-applying rod to a position corresponding to the drug storage channel, the second guide hole connects to the third guide hole through one of the multiple connecting holes. Under external force, the positioning rod can drive the positioning cam to rotate, so that the positioning cam pushes the second force transmission head through the connecting hole and the second guide hole and into the first guide hole, so that the second guide cone surface of the second force transmission head abuts against the guide inclined surface, and drives the blade body closer to the drug storage channel, so that the blade body can pierce the sealing membrane in the corresponding drug storage channel and drive the force transmission unit to move.

[0015] In one embodiment of the present invention, the force-applying unit further includes a second elastic element, a guide sleeve, and a guide post. The guide sleeve is connected to the positioning block and located within the third guide hole. The guide post is connected to the positioning rod and is inserted into the guide sleeve, allowing it to slide and rotate relative to the guide sleeve. The second elastic element is disposed within the guide sleeve and is used to give the guide post a sliding tendency away from the guide sleeve.

[0016] In one embodiment of the present invention, the fourth guide hole is provided with a guide groove and a limiting groove on its wall. The guide groove extends along the preset axis, and the limiting groove extends around the preset axis. The guide groove is connected to the guide groove. The positioning rod is provided with a limiting protrusion, and the limiting protrusion is slidably connected to the guide groove or the limiting groove. When the limiting protrusion is located in the limiting groove and has a distance between it and the guide groove in the circumferential direction of the preset axis, the positioning rod and the positioning block are relatively fixed in the extension direction of the preset axis.

[0017] In one embodiment of the present invention, the first elastic element and the second elastic element are configured as springs, sheet springs or rubber parts.

[0018] In one embodiment of the present invention, a first bearing is provided in the first mounting hole, and the force-applying rod passes through the first bearing and is rotatably connected to the turntable;

[0019] The force transmission unit includes a force transmission base, a force transmission sleeve, a piston, and a force transmission rod. The force transmission base is provided with a slot. The force transmission base is rotatably connected to the drug storage channel via a second bearing, and the two are relatively fixed in the extension direction of the preset axis. The slot opening is close to the sealing membrane and communicates with the drug storage channel. The force transmission sleeve is provided with a threaded hole. The force transmission sleeve is fixedly connected to the force transmission base. One end of the threaded hole is located on the side of the force transmission base away from the sealing membrane and communicates with the drug storage channel. The piston is connected to the force transmission rod, and the force transmission rod is screwed to the threaded hole. The piston is slidably connected to the drug storage channel, and the two are relatively fixed in the circumferential direction of the drug storage channel. The blade can be inserted into the slot after piercing the sealing membrane under the drive of the second force transmission head, thereby driving the force transmission base to rotate through the blade.

[0020] In one embodiment of the present invention, a first baffle is fitted over the blade body, the first baffle being located within the annular space. A second baffle is disposed between the inner cylinder and the outer cylinder, the second baffle being rotatably connected to both the outer cylinder and the inner cylinder around a preset axis, and the second baffle being fixed relative to the inner cylinder and the outer cylinder in the extension direction of the preset axis. A first elastic member is clamped between the first baffle and the second baffle to give the blade body a tendency to move away from the diaphragm.

[0021] In one embodiment of the present invention, a slider is provided on the blade body, a slide rail is provided on the wall of the first guide hole, the slider is slidably connected to the slide rail in the extension direction of the preset axis, and the slider and the force rod are relatively fixed in the circumferential direction of the first guide hole.

[0022] The beneficial effects of this invention are:

[0023] In summary, this embodiment provides a wound hemostatic dressing delivery device. One or more delivery devices can be carried during outdoor or field activities. When needed, the delivery device is removed, and the injection mechanism is operated to engage with one of multiple drug storage channels. The injection needle is then aligned with the treatment site, ideally below the skin. Once the needle position is adjusted, force is applied to the injection mechanism, causing it to move relative to the substrate. This pressure forces the medication in the storage channel to break through the diaphragm and enter the injection needle, ultimately exiting through it. The entire operation is convenient and quick. Furthermore, the injection needle can be positioned outside or below the skin, allowing for diverse medication coverage methods, suitable for hemostasis of deeper wounds, and has a wide range of applications. Multiple drug storage channels can store medication, enabling multiple uses and saving costs. The medication in each channel is stored independently, preventing interference and promoting hygiene. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the trauma hemostatic dressing delivery device provided in this application;

[0026] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0027] Figure 3 for Figure 1 A magnified schematic diagram of the local structure at point I;

[0028] Figure 4 for Figure 1 A magnified schematic diagram of the local structure at point II;

[0029] Figure 5 for Figure 1 A magnified schematic diagram of the local structure at point III;

[0030] Figure 6 for Figure 1 A magnified schematic diagram of the local structure at point IV;

[0031] Figure 7 A schematic diagram of the structure of the second force transmission head provided in this application;

[0032] Figure 8A schematic diagram illustrating the state changes of the trauma hemostatic dressing delivery device provided in this application during use.

[0033] icon:

[0034] 100-Base; 101-Injection needle hole; 102-Drug storage channel; 1021-Circular segment; 1022-Elliptical segment; 103-Annular space; 110-Body; 120-Outer cylinder; 130-Inner cylinder; 131-Connecting hole; 140-Diaphragm; 150-Sealing membrane; 300-Injection mechanism; 310-Force application unit; 311-Turntable; 3111-First mounting hole; 3112-Second mounting hole; 312-Force application rod; 3121-First guide hole; 3122-Second guide hole; 3123-Slide; 313-Knife body; 314-First elastic element; 315-First force transmission head; 3151-Guiding inclined surface; 31 6-Positioning block; 3161-Third guide hole; 3162-Fourth guide hole; 3163-Guide groove; 3164-Limiting groove; 317-Positioning rod; 318-Positioning cam; 319-Second force transmission head; 3191-First guide cone surface; 3192-Second guide cone surface; 320-First baffle; 321-Second baffle; 322-Limiting protrusion; 323-Rubber baffle; 324-Retaining ring; 325-Slider; 330-Force transmission unit; 331-Force transmission seat; 3311-Slot; 332-Force transmission sleeve; 333-Piston; 334-Force transmission rod; 350-Second elastic element; 370-Guide sleeve; 390-Guide post. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of the embodiments of this application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the traumatic hemostatic dressing delivery device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first," "second," "third," etc. are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] Injuries are inevitable during outdoor or wilderness activities. To ensure the safety of people and property, people usually carry a first-aid kit. However, first-aid kits are only for applying to the surface of the skin and cannot be used to treat deeper wounds, which limits their effectiveness.

[0042] In view of this, the designers have designed a wound hemostatic dressing delivery device that can not only stop bleeding on the skin surface, but also treat deeper wounds. It is flexible and versatile, suitable for use in various scenarios, and has a good hemostatic effect.

[0043] Please see Figures 1-8 In this embodiment, the trauma hemostatic dressing delivery device includes a base 100 and an injection mechanism 300. The base 100 is provided with an injection needle hole 101 and multiple drug storage channels 102. The multiple drug storage channels 102 are evenly spaced around a preset axis, and all multiple drug storage channels 102 are connected to the injection needle hole 101. Each drug storage channel 102 is provided with a diaphragm 140 that can be ruptured under external force. The injection mechanism 300 is movably connected to the base 100. The injection mechanism 300 can move relative to the base 100 to selectively correspond to one of the multiple drug storage channels 102, and can cause the drug in the corresponding drug storage channel 102 to rupture the diaphragm 140, so that the drug is ejected from the injection needle hole 101.

[0044] In this embodiment, the trauma hemostatic dressing delivery device is used as follows:

[0045] First, operate the injection mechanism 300 to engage with one of the multiple drug storage channels 102. Then, align the injection needle 101 with the treatment site, positioning it below the skin. Once the needle 101 is positioned, apply force to the injection mechanism 300, causing it to move relative to the base 100. This allows the medication in the drug storage channel 102 to first break through the diaphragm 140 under pressure, then enter the injection needle 101, and finally exit from it. The entire operation is convenient and quick. Furthermore, the injection needle 101 can be positioned outside or below the skin, allowing for diverse medication coverage methods, making it suitable for hemostasis of deeper wounds and broadening its application range. Additionally, multiple drug storage channels 102 can store medication, enabling multiple uses and saving costs. The medication in each channel 102 is stored independently, preventing interference and ensuring hygiene.

[0046] It should be understood that, to ensure the injection mechanism 300 is aligned with one of the multiple drug storage channels 102, a first marking portion is provided on the injection mechanism 300, and multiple second marking portions are provided on the base 100. The multiple second marking portions are evenly spaced along a preset axis in the circumferential direction, and each second marking portion is aligned with one drug storage channel 102. When adjusting the injection mechanism 300, simply align the first marking portion on the injection mechanism 300 with one of the multiple second marking portions; the adjustment is flexible and convenient. For example, in this embodiment, the number of drug storage channels 102 is four, and correspondingly, the base 100 has four second marking portions.

[0047] In this embodiment, optionally, the injection mechanism 300 includes a force-applying unit 310 and multiple force-transmitting units 330. The force-applying unit 310 is movably connected to the base 100. The multiple force-transmitting units 330 are respectively disposed in multiple drug storage channels 102. The force-applying unit 310 is used to cooperate with one of the multiple force-transmitting units 330 to discharge the drug in the corresponding drug storage channel 102 out of the injection needle hole 101 through the force-transmitting unit 330. Furthermore, a first marking part is disposed on the force-applying unit 310. That is, when it is necessary to inject the drug, the position of the force-applying unit 310 is first adjusted by the first marking part so that it is aligned with a second marking part, that is, aligned with the force-transmitting unit 330 located in the corresponding drug storage channel 102. Applying force to the force-applying unit 310 can drive the force-transmitting unit 330 to move, so that the drug is ejected from the injection needle hole 101.

[0048] It should be understood that part or all of the substrate 100 can be set as a light-transmitting element, so that the condition of the drug in the drug storage channel 102 can be observed from the outside of the substrate 100, and it can be determined whether the injection is complete or whether it has been used.

[0049] In addition, a pre-fracture groove can be provided on the diaphragm 140. When an external force is transmitted to the drug in the drug storage channel 102 through the force transmission unit 330, the drug acts on the diaphragm 140. The pre-fracture groove has low strength and is easily broken.

[0050] In this embodiment, optionally, the substrate 100 includes a cylindrical body 110, a circular outer cylinder 120, and a circular inner cylinder 130. An injection needle hole 101 and multiple drug storage channels 102 are all disposed on the body 110. Each drug storage channel 102 is connected to the injection needle hole 101 via a long, narrow channel, and a diaphragm 140 is disposed within the long, narrow channel, thereby facilitating the rupture of the diaphragm 140 by the medication. Furthermore, a one-way valve is provided in each long, narrow channel, with the diaphragm 140 located on the side of the one-way valve away from the injection needle hole 101. That is, the medication can only flow along the direction of the diaphragm 140, the one-way valve, and the injection needle hole 101, preventing medication backflow; it also prevents medication from flowing back into the remaining drug storage channels 102 and rupturing the remaining diaphragms 140 when medication is injected into one of the drug storage channels 102.

[0051] Meanwhile, both ends of the outer cylinder 120 and the inner cylinder 130 are open. One end of the outer cylinder 120 is connected to the main body 110, and one end of the inner cylinder 130 is connected to the main body 110. The inner cylinder 130 is located within the area enclosed by the outer cylinder 120. The inner cylinder 130 and the outer cylinder 120 together define an annular space 103. The inner cylinder 130, outer cylinder 120, and main body 110 are coaxially arranged. The ends of multiple drug storage channels 102 away from the injection needle hole 101 are all located between the inner cylinder 130 and the outer cylinder 120, and a sealing membrane 150 is provided at the end of the drug storage channel 102 away from the injection needle hole 101. The force transmission unit 330 is located between the sealing membrane 150 and the diaphragm 140. The drug is located between the force transmission unit 330 and the diaphragm 140. By setting a sealing membrane 150, a relatively sealed space is formed between the sealing membrane 150 and the diaphragm 140. The medicine is in this sealed space, which is not easily contaminated, has a long shelf life, and is highly safe to use.

[0052] Optionally, the force-applying unit 310 is rotatably connected to both the outer cylinder 120 and the inner cylinder 130 around a preset axis. When the force-applying unit 310 rotates relative to the base 100, it can rotate to a position corresponding to one of the plurality of drug storage channels 102, guided by the first and second marking portions, thereby transmitting external force to the force-transmitting unit 330. It should be understood that the second marking portion can be provided on the outer cylinder 120 or the body 110, etc.

[0053] Furthermore, the drug storage channel 102 has a connected circular segment 1021 and an elliptical segment 1022. The end of the circular segment 1021 away from the elliptical segment 1022 is connected to the annular space 103. The elliptical segment 1022 is connected to the injection needle hole 101 through a slender channel. That is, the circular segment 1021 is located on the side of the elliptical segment 1022 away from the injection needle hole 101.

[0054] In this embodiment, the optional force application unit 310 includes a turntable 311, a force application rod 312, a blade body 313, a first elastic element 314, a first force transmission head 315, a positioning block 316, a positioning rod 317, a positioning cam 318, and a second force transmission head 319.

[0055] Specifically, the first marking part is disposed on the turntable 311. The turntable 311 is provided with a first mounting hole 3111 and a second mounting hole 3112, both of which are circular holes. The turntable 311 covers the end of the outer cylinder 120 away from the main body 110 and is rotatably connected to the outer cylinder 120 around a preset axis. For example, the turntable 311 can be rotatably connected to the outer cylinder 120 via a ball bearing. The first mounting hole 3111 on the turntable 311 communicates with the annular space 103, and the second mounting hole 3112 communicates with the inner cylinder 130. The second mounting hole 3112, the outer cylinder 120, and the inner cylinder 130 are coaxially arranged. The force-applying rod 312 is provided with a first guide hole 3121 and a second guide hole 3122. The force-applying rod 312 passes through the first mounting hole 3111 and is fixed relative to the turntable 311 in the extension direction of the preset axis. The first guide hole 3121 communicates with the annular space 103 and extends along the preset axis, while the second guide hole 3122 is perpendicular to the preset axis. The blade body 313 is slidably connected to the first guide hole 3121 in the extension direction of the preset axis, and the blade body 313 and the force-applying rod 312 are fixed relative to each other in the circumferential direction of the axis of the first guide hole 3121. That is, the force-applying rod 312 can drive the blade body 313 to rotate together, and the blade body 313 itself can slide relative to the force-applying rod 312 in the extension direction of the preset axis. One end of the first elastic member 314 abuts against the blade body 313 and the other end abuts against the base 100, which is used to make the blade body 313 have a tendency to move away from the drug storage channel 102; the first force transmission head 315 is provided with a guide slope 3151 and the first force transmission head 315 is connected to the blade body 313.

[0056] For example, in this embodiment, the mating structure between the blade body 313 and the force-applying rod 312 can be as follows:

[0057] The first elastic element 314 is configured as a spring and is sleeved on the outside of the blade body 313. A first baffle 320 is sleeved on the blade body 313, located within the annular space 103. A second baffle 321 is disposed between the inner cylinder 130 and the outer cylinder 120. The second baffle 321 is rotatably connected to both the outer cylinder 120 and the inner cylinder 130 around a preset axis, and is relatively fixed to both the inner cylinder 130 and the outer cylinder 120 in the extension direction of the preset axis. For example, both the outer cylinder 120 wall of the inner cylinder 130 and the inner cylinder 130 wall of the outer cylinder 120 are provided with annular grooves. The second baffle 321 is simultaneously engaged in both annular grooves, and ball bearings are disposed in the annular grooves to reduce the friction between the second baffle 321 and the outer cylinder 120 and the inner cylinder 130. The blade body 313 passes through the second baffle 321 in the extension direction of the preset axis and is capable of sliding and rotating relative to the second baffle 321. Simultaneously, when the turntable 311 is rotated, the blade 313 can drive the second baffle 321 to rotate together in the annular space 103 around a preset axis. The first elastic element 314 is clamped between the first baffle 320 and the second baffle 321 to give the blade 313 a tendency to move away from the diaphragm 140.

[0058] Obviously, in other embodiments, the first elastic element 314 may also be a spring sheet or a rubber element, etc.

[0059] Optionally, the positioning block 316 is provided with a communicating third guide hole 3161 and a fourth guide hole 3162. The positioning block 316 is fixed in the second mounting hole 3112. The third guide hole 3161 extends in a direction perpendicular to the preset axis, and the fourth guide hole 3162 extends in the extension direction of the preset axis. The positioning rod 317 passes through the fourth guide hole 3162. The positioning rod 317 and the fourth guide hole 3162 are slidably connected on the preset axis, and the positioning rod 317 is connected to the fourth guide hole 3162 around the preset axis. 162 is slidably connected; the positioning cam is fixedly connected to the positioning rod 317 and is used to move within the third guide hole 3161 under the drive of the positioning rod 317; the second force transmission head 319 is provided with a coaxial first guide cone surface 3191 and a second guide cone surface 3192. The second force transmission head 319 and the third guide hole 3161 are slidably connected in the extension direction of the third guide hole 3161, and the first guide cone surface 3191 and the second guide cone surface 3192 are arranged in the radially outward direction of the outer cylinder 120. That is, taking a radius of the outer cylinder 120 as a reference, the point where the radius of the outer cylinder 120 connects to the axis of the outer cylinder 120 is the starting end, and the point where the radius connects to the outer wall of the outer cylinder 120 is the ending end. When the second force transmission head 319 is located in the third guide hole 3161, it is located between the starting end and the ending end, and the first guide cone surface 3191 is closer to the starting end, and the second guide cone surface 3192 is closer to the ending end.

[0060] Furthermore, the inner cylinder 130 has multiple connecting holes 131 on its circumferential wall. These connecting holes 131 are spaced apart in the circumferential direction of the inner cylinder 130. The number of connecting holes 131 is the same as the number of medicine storage channels 102, that is, each connecting hole 131 corresponds to one medicine storage channel 102. When the turntable 311 drives the force rod 312 to move to the position corresponding to the medicine storage channel 102, the second guide hole 3122 connects to the third guide hole 3161 through the corresponding connecting hole 131. Under the action of external force, the positioning rod 317 can drive the positioning cam 318 to rotate, so that the positioning cam 318 can push the second force transmission head 319 through the connecting hole 131 and the second guide hole 3122 and into the first guide hole 3121, so that the second guide cone surface 3192 of the second force transmission head 319 abuts against the guide inclined surface 3151, and drives the knife body 313 to approach the drug storage channel 102, so that the knife body 313 can pierce the sealing membrane 150 in the corresponding drug storage channel 102 and drive the force transmission unit 330 to move.

[0061] Furthermore, a first bearing is provided in the first mounting hole 3111, and the force-applying rod 312 passes through the first bearing and is rotatably connected to the turntable 311. The force transmission unit 330 includes a force transmission seat 331, a force transmission sleeve 332, a piston 333, and a force transmission rod 334. The force transmission seat 331 is provided with a slot 3311, and the force transmission seat 331 is rotatably connected to the circular segment 1021 of the drug storage channel 102 through a second bearing, and the two are relatively fixed in the extension direction of the preset axis, that is, the force transmission seat 331 can rotate relative to the drug storage channel 102 but cannot slide relative to it. The slot opening of the slot 3311 is close to the sealing membrane 150 and communicates with the drug storage channel 102; the force transmission sleeve 332 is provided with a threaded hole, and the force transmission sleeve 332 is fixedly connected to the force transmission seat 331, with one end of the threaded hole located on the side of the force transmission seat 331 away from the sealing membrane 150 and communicating with the drug storage channel 102. The piston 333 is connected to the force transmission rod 334, which is screwed into a threaded hole. The piston 333 is slidably connected to the elliptical segment 1022 of the drug storage channel 102, and the two are relatively fixed in the circumferential direction of the drug storage channel 102. The blade 313, driven by the second force transmission head 319, can insert into the slot 3311 after piercing the sealing membrane 150, thereby driving the force transmission seat 331 to rotate. When the force transmission seat 331 rotates, since the force transmission seat 331 does not move relative to the drug storage channel 102 along the extension direction of the preset axis, the force transmission seat 331 drives the guide sleeve 370 to rotate. The guide rod is connected to the piston 333 and does not rotate relative to the drug storage channel 102. Thus, the guide rod can drive the piston 333 to slide back and forth in the extension direction of the preset axis, thereby realizing the injection of the drug.

[0062] Furthermore, a slider 325 is provided on the blade body 313, and a slide rail 3123 is provided on the wall of the first guide hole 3121. The slider 325 is slidably connected to the slide rail 3123 in the extension direction of the preset axis, and the slider 325 and the force-applying rod 312 are relatively fixed in the circumferential direction of the first guide hole 3121. That is, through the cooperation of the slider 325 and the slide rail 3123, the blade body 313 is guided to slide relative to the force-applying rod 312 along the preset axis, and will not rotate relative to the force-applying rod 312. Of course, the slider 325 can be provided on the first force transmission head 315. Alternatively, the first force transmission head 315, the slider 325 and the blade body 313 are integrally formed. And, under the action of the first elastic member 314, the slider 325 is held against a groove wall of the slide rail 3123 away from the drug storage channel 102, and this groove wall is basically flush with the bottom wall of the first guide hole 3121.

[0063] In this embodiment, optionally, the force application unit 310 further includes a second elastic element 350, a guide sleeve 370, and a guide post 390. The guide sleeve 370 is connected to the positioning block 316 and located in the third guide hole 3161. The guide post 390 is connected to the positioning rod 317. The guide post 390 is inserted into the guide sleeve 370 and can slide and rotate relative to the guide sleeve 370. The second elastic element 350 is disposed in the guide sleeve 370 and is used to make the guide post 390 have a sliding tendency away from the guide sleeve 370. The fourth guide hole 3162 has a guide groove 3163 and a limiting groove 3164 on its wall. The guide groove 3163 extends along a preset axis, and the limiting groove 3164 extends around the preset axis. The guide groove 3163 is connected to the limiting groove 3164. The positioning rod 317 has a limiting protrusion 322, which is slidably connected to either the guide groove 3163 or the limiting groove 3164. When the limiting protrusion 322 is located within the limiting groove 3164 and has a distance between it and the guide groove 3163 in the circumferential direction along the preset axis, the positioning rod 317 and the positioning block 316 are relatively fixed in the extension direction of the preset axis. It should be understood that the second elastic element 350 can be a spring, a sheet, or a rubber component.

[0064] Furthermore, a rubber baffle 323 and a retaining ring 324 are provided inside the third guide hole 3161. The retaining ring 324 is located on the side of the rubber baffle 323 away from the inner cylinder wall 130. The rubber baffle 323 and the retaining ring 324 prevent the second force transmission head 319 from sliding freely inside the third guide hole 3161 when it is inside the third guide hole 3161, thus preventing it from sliding out of the third guide hole 3161 and entering the annular space 103. When the positioning cam pushes the second force transmission head 319 to move towards the first guide hole 3121, the second force transmission head 319 can pass over the rubber baffle 323. Similarly, when the second force transmission head 319 returns from the first guide hole 3121 to the third guide hole 3161, the second force transmission head 319 can also pass over the rubber baffle 323.

[0065] The procedure for using the trauma hemostatic dressing delivery device provided in this embodiment is as follows:

[0066] Please combine Figure 1 and Figure 8 In the initial state, the blade 313 is aligned with a drug storage channel 102. Furthermore, a third marking portion is provided on the force application rod 312. When the first, second, and third marking portions are aligned, the blade 313 is aligned with the drug storage channel 102, and the third guide hole 3161 is connected to the first guide hole 3121 through a connecting hole 131. At this time, the positioning rod 317 is pressed down, causing it to move downwards a certain distance. This allows the limiting protrusion 322 on the positioning rod 317 to slide in the guide groove 3163 until it reaches the connection position between the guide groove 3163 and the limiting groove 3164. At this point, the side with the smaller radius of the positioning cam abuts against one end face of the second force transmission head 319. During this process, the second elastic element 350 is compressed. Then, the positioning rod 317 is rotated, causing the limiting protrusion 322 and the positioning cam to rotate. The limiting protrusion 322 is engaged in the limiting groove 3164, while the positioning cam drives the second force transmission head 319 to move towards the connecting hole 131 and into the first guide hole 3121. Due to the structural limitations of the positioning cam, the second force transmission head 319 does not completely enter the first guide hole 3121, but a small portion is located in the connecting hole 131 and the second guide hole 3122. At this time, the second guide cone surface 3192 on the second force transmission head 319 abuts against the hole walls of the connecting hole 131 and the second guide hole 3122. During the process of the second force transmission head 319 entering the first guide hole 3121, the first guide cone surface 3191 abuts against the guide inclined surface 3151, thereby driving the blade body 313 to approach the sealing membrane 150 through the first force transmission head 315. After the blade body 313 pierces the sealing membrane 150, it is inserted into the slot 3311. At this time, when the force-applying rod 312 is rotated again, since the second guide slope 3151 of the second force-transmitting head 319 is in contact with the wall of the connecting hole 131 and the second guide hole 3122, when the torque is transmitted to the second force-transmitting head 319 through the force-applying rod 312, most of the second force-transmitting head 319 can enter the first guide hole 3121, and a small part is located in the second guide hole 3122. Furthermore, the second force-transmitting head 319 can continuously press the first force-transmitting head 315, so that the blade body 313 is always inserted in the slot 3311, and the blade body 313 smoothly drives the force-transmitting seat 331 to rotate together. Thus, by utilizing the cooperation of the force-transmitting seat 331, the force-transmitting sleeve 332 and the force-transmitting rod 334, the piston 333 is pushed, and the piston 333 pushes the medicine. The medicine breaks the diaphragm 140 and is ejected from the injection needle hole 101, completing one injection.

[0067] Then, the force-applying rod 312 is rotated at the minimum angle to align the third marking part with the first marking part (obviously, if the third marking part is just aligned with the first marking part when the injection is completed, it is not necessary to rotate the force-applying rod 312). At this time, the first guide hole 3121, the connecting hole 131 and the third guide hole 3161 are in a connected state. The positioning rod 317 is rotated in the opposite direction to slide out of the limiting slide groove 3164. Under the action of the second elastic member 350, it returns to the position where the limiting protrusion 322 is located in the guide slide groove 3163. At this time, the positioning cam will not block the position where the third guide hole 3161 and the connecting hole 131 are connected. Under the action of the first elastic member 314, the blade 313 and the first force transmission head 315 are reset, pushing the second force transmission head 319 into the third guide hole 3161. The force-applying unit 310 completes the reset action and can perform the injection of the drug in the next drug storage channel 102.

[0068] The trauma hemostatic dressing delivery device provided in this embodiment is convenient and reliable to use, can be used multiple times, and has a wide range of applications; at the same time, it has an anti-accidental contact function, making it safe and reliable.

[0069] It should be understood that an end cap can be attached to the injection needle hole 101 after the injection is completed.

[0070] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for introducing hemostatic dressings for external injuries, characterized in that, include: The matrix and the injection mechanism are provided. The matrix is ​​provided with an injection needle hole and multiple drug storage channels. The multiple drug storage channels are arranged at intervals around a preset axis and are all connected to the injection needle hole. Each drug storage channel is provided with a diaphragm that can be ruptured under external force. A sealing membrane is provided at the end of the drug storage channel away from the injection needle hole. The injection mechanism includes a force application unit and multiple force transmission units, wherein the force transmission units are located between the sealing membrane and the diaphragm. The force application unit includes a turntable, a force application rod, a blade body, a first elastic element, a first force transmission head, a positioning block, a positioning rod, a positioning cam, and a second force transmission head; The turntable is provided with a first mounting hole and a second mounting hole. The turntable is rotatably connected to the base around the preset axis. The first mounting hole communicates with the annular space of the base, and the second mounting hole is coaxially arranged with the annular space. The force-applying rod is provided with a first guide hole and a second guide hole. The force-applying rod passes through the first mounting hole and is fixed relative to the turntable in the extension direction of the preset axis. The first guide hole communicates with the annular space and extends along the preset axis, and the second guide hole is perpendicular to the preset axis. The blade body is slidably connected to the first guide hole in the extension direction of the preset axis, and the blade body and the force-applying rod are fixed relative to each other in the circumferential direction of the axis of the first guide hole. One end of the first elastic member abuts against the blade body, and the other end abuts against the base, for giving the blade body a tendency to move away from the drug storage channel. The first force-transmitting head is provided with a guiding inclined surface and is connected to the blade body. The positioning block is provided with a communicating third guide hole and a fourth guide hole. The positioning block is fixed in the second mounting hole. The third guide hole extends in a direction perpendicular to the preset axis, and the fourth guide hole extends in the extension direction of the preset axis. The positioning rod passes through the fourth guide hole, and the positioning rod and the fourth guide hole are slidably connected on the preset axis. The second force transmission head is provided with a coaxial first guide cone surface and a second guide cone surface. The second force transmission head and the third guide hole are slidably connected in the extension direction of the third guide hole. The fourth guide hole is provided with a guide groove and a limiting groove on its wall. The positioning rod is provided with a limiting protrusion, and the limiting protrusion is slidably connected to the guide groove or the limiting groove. When the turntable moves the force-applying rod to the position corresponding to the drug storage channel, the positioning rod is first pressed down to move it downward a certain distance, so that the limiting protrusion on the positioning rod slides in the guide groove and slides to the connection position of the guide groove and the limiting groove. The positioning rod is then rotated to drive the limiting protrusion and the positioning cam to rotate. The positioning cam pushes the second force transmission head through the connecting hole and the second guide hole of the base and into the first guide hole, so that the second guide cone surface of the second force transmission head abuts against the guide inclined surface, and drives the blade body to approach the drug storage channel, so that the blade body can pierce the sealing membrane in the corresponding drug storage channel and drive the force transmission unit to move. The blade body is fitted with a first baffle, which is located within the annular space. A second baffle is provided on the base, which is rotatably connected to the base around the preset axis. The second baffle and the base are relatively fixed in the extension direction of the preset axis. The first elastic element is clamped between the first baffle and the second baffle to give the blade body a tendency to move away from the diaphragm.

2. The trauma hemostatic dressing delivery device according to claim 1, characterized in that: The guide groove extends along the preset axis, the limiting groove extends around the preset axis, and the guide groove is connected to the guide groove; when the limiting protrusion is located in the limiting groove and has a distance between it and the guide groove in the circumferential direction of the preset axis, the positioning rod and the positioning block are relatively fixed in the extension direction of the preset axis.

3. The trauma hemostatic dressing delivery device according to claim 1, characterized in that: The force-applying unit further includes a second elastic element, a guide sleeve, and a guide post. The guide sleeve is connected to the positioning block and located within the third guide hole. The guide post is connected to the positioning rod and is inserted into the guide sleeve, allowing it to slide and rotate relative to the guide sleeve. The second elastic element is disposed within the guide sleeve and is used to give the guide post a sliding tendency away from the guide sleeve.

4. The trauma hemostatic dressing delivery device according to claim 3, characterized in that: The first elastic element and the second elastic element are configured as springs, sheet metal, or rubber components.

5. The trauma hemostatic dressing delivery device according to claim 1, characterized in that: A first bearing is provided in the first mounting hole, and the force-applying rod passes through the first bearing and is rotatably connected to the turntable; The force transmission unit includes a force transmission base, a force transmission sleeve, a piston, and a force transmission rod. The force transmission base is provided with a slot. The force transmission base is rotatably connected to the drug storage channel via a second bearing, and the two are relatively fixed in the extension direction of the preset axis. The slot opening is close to the sealing membrane and communicates with the drug storage channel. The force transmission sleeve is provided with a threaded hole. The force transmission sleeve is fixedly connected to the force transmission base. One end of the threaded hole is located on the side of the force transmission base away from the sealing membrane and communicates with the drug storage channel. The piston is connected to the force transmission rod, and the force transmission rod is screwed to the threaded hole. The piston is slidably connected to the drug storage channel, and the two are relatively fixed in the circumferential direction of the drug storage channel. The blade can be inserted into the slot after piercing the sealing membrane under the drive of the second force transmission head, thereby driving the force transmission base to rotate through the blade.

6. The trauma hemostatic dressing delivery device according to claim 1, characterized in that: The blade body is provided with a slider, and the wall of the first guide hole is provided with a slide rail. The slider is slidably connected to the slide rail in the extension direction of the preset axis, and the slider and the force rod are relatively fixed in the circumferential direction of the first guide hole.

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