Blood vessel puncture hemostat
By using a combination design of hemostasis and hemostasis yarn at the vascular puncture port, the accurate positioning and efficient hemostasis of the vascular puncture port are achieved, solving the problems of inconvenient and poor reliability of hemostasis in the prior art, and ensuring strict sealing of the vascular puncture port and operational convenience.
Patent Information
- Application Number
- CN202311219546.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2043-09-21
AI Technical Summary
The existing vascular puncture oral hemostasis device has shortcomings in rapid positioning and operational convenience, and it is difficult to achieve strict sealing after surgery, and there is a risk of foreign body retention.
A vascular puncture oral hemostasis device including hemostasis umbrella, hemostasis yarn, delivery device and pulling device is designed. The hemostasis umbrella is positioned on the inner wall of the blood vessel and is blocked by the hemostasis yarn on the outer wall of the blood vessel to achieve the dual pressure hemostasis effect.
Accurate positioning of the vascular puncture port and efficient hemostasis are achieved, avoiding the retention of foreign objects, and improving operation convenience and hemostasis reliability.
Smart Images
Figure CN116965878B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of medical devices, in particular to a hemostat for a blood vessel puncture. Background Art
[0002] Blood vessels are the preferred access for the diagnosis and treatment of many diseases. After vascular intervention, the vascular puncture site usually needs to be properly closed by restricting the patient to bed and maintaining body position. If the vascular puncture site is not closed properly, it may cause postoperative hematoma, rebleeding, and aneurysm at the puncture site.
[0003] Although there are some vascular puncture port closure devices in the prior art, due to their shortcomings and deficiencies in raw materials, device configuration design and closing principle, there is currently no vascular puncture port hemostat that can take into account the requirements of rapid positioning and hemostasis, convenient operation, no foreign matter left after surgery, and tight closure of the puncture port. For example, the method of using a nickel-titanium memory alloy plate to carve an elastic rivet, and then putting it on a hard tube, and then pushing and piercing the blood vessel wall to complete the closure of the puncture port, the closed part will always be implanted with a nickel-titanium rivet, not only can the same part not be punctured again, but also after the closure fails, there will be non-degradable metal foreign matter in the part. In addition, it is usually difficult to achieve the expected effect when using compression hemostasis in the case of implant positioning deviation, and it takes a long time to rely solely on compression hemostasis. Summary of the invention
[0004] The purpose of the present invention is to provide a hemostat for a vascular puncture site, so as to alleviate the technical problems of inconvenient hemostasis positioning operation and poor hemostasis reliability of a vascular puncture site.
[0005] In a first aspect, the present invention provides a hemostatic device for a vascular puncture site, comprising: a hemostatic umbrella, a hemostatic gauze, a conveying device, a pulling device, and a pushing device;
[0006] The pushing device is inserted into the conveying device, and the pulling device passes through the conveying device and the conveying device;
[0007] The distal end of the hemostatic umbrella is connected to the distal end of the pulling device, and the hemostatic gauze is connected to the distal end of the pushing device.
[0008] In combination with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the hemostatic umbrella is configured as an elastic mesh basket and has a radially contracted state and a flat state;
[0009] In the radially contracted state, the hemostatic parachute rebounds, contracts in radial dimensions, and extends in the axial direction;
[0010] In the flat state, the pulling device pulls the hemostatic parachute to cause the hemostatic parachute to contract axially, expand radially, and fit against the inner wall of the blood vessel.
[0011] In combination with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein, in the flat state, the hemostatic parachute is unfolded along a spherical or circular plane toward the end surface of the inner wall of the blood vessel.
[0012] In combination with the first aspect, the present invention provides a third possible implementation of the first aspect, wherein the hemostatic gauze is configured as a ribose hemostatic gauze or a carboxymethyl cellulose hemostatic gauze, and has a curled state and an unfolded state;
[0013] In the curled state, the hemostatic gauze is curled and compressed into the delivery device;
[0014] In the expanded state, the pushing device pushes the hemostatic gauze to move outside the conveying device, so that the hemostatic gauze is expanded and abuts against the outer wall of the blood vessel.
[0015] In combination with the first aspect, the present invention provides a fourth possible implementation of the first aspect, wherein the delivery device comprises: a pusher and a delivery tube;
[0016] The conveying tube is connected to the pusher, the pulling device passes through the pusher and the conveying tube, and the pushing device is inserted into the conveying tube.
[0017] In combination with the fourth possible implementation of the first aspect, the present invention provides a fifth possible implementation of the first aspect, wherein the pusher has a first clamping position and a second clamping position, the first clamping position and the second clamping position are arranged at intervals along the axial direction of the conveying tube, and the first clamping position and the second clamping position are both adapted to the pushing device.
[0018] In combination with the fourth possible implementation manner of the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein the pushing device comprises: a pushing handle and a pushing tube connected to the pushing handle;
[0019] The pulling device passes through the pushing tube, the distal end of the pushing tube is connected to the hemostatic gauze, and the pushing tube is inserted into the conveying tube.
[0020] In combination with the sixth possible implementation of the first aspect, the present invention provides a seventh possible implementation of the first aspect, wherein the pushing handle is provided with a buckle portion, and the buckle portion is adapted to the pusher.
[0021] In combination with the first aspect, the present invention provides an eighth possible implementation of the first aspect, wherein the pulling device includes: a pulling handle and a pulling shaft connected to the pulling handle, and the distal end of the pulling shaft is connected to the distal end of the hemostatic umbrella.
[0022] In combination with the eighth possible implementation of the first aspect, the present invention provides a ninth possible implementation of the first aspect, wherein the pulling device further comprises: a sleeve and a supporting catheter;
[0023] The sleeve is connected to the conveying device, the pulling shaft passes through the supporting catheter and the sleeve and is connected to the pulling handle, and the supporting catheter is abutted between the proximal end of the hemostatic parachute and the sleeve.
[0024] The embodiments of the present invention bring the following beneficial effects: a pushing device is inserted into a conveying device, a pulling device passes through the conveying device and the conveying device, and the distal end of the hemostatic umbrella is connected to the distal end of the pulling device, and the hemostatic gauze is connected to the distal end of the pushing device. The hemostatic umbrella and the hemostatic gauze can be operated separately, and the hemostatic umbrella is used to locate and seal the inner wall of the blood vessel, and the hemostatic gauze is used to seal the outer wall of the blood vessel. Not only is the positioning accurate and the operation convenient, but the hemostasis reliability is also better.
[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0027] Figure 1 An exploded view of a blood vessel puncture hemostat provided by an embodiment of the present invention;
[0028] Figure 2 A schematic diagram of a delivery device and a push handle of a blood vessel puncture hemostat provided by an embodiment of the present invention;
[0029] Figure 3 A schematic diagram of a hemostatic gauze, a conveying device and a pushing device of a blood vessel puncture hemostat provided by an embodiment of the present invention;
[0030] Figure 4 A schematic diagram of a hemostatic umbrella, a pulling shaft and a supporting catheter of a blood vessel puncture hemostat provided by an embodiment of the present invention;
[0031] Figure 5 A schematic diagram of the blood vessel puncture hemostat provided by an embodiment of the present invention in a state where the cannula and the supporting catheter are separated;
[0032] Figure 6 A schematic diagram of a blood vessel puncture hemostat provided by an embodiment of the present invention in an initial state;
[0033] Figure 7 A schematic diagram of a blood vessel puncture hemostat provided by an embodiment of the present invention when the hemostatic umbrella is in a flat state;
[0034] Figure 8 A schematic diagram of the blood vessel puncture hemostat provided by an embodiment of the present invention when the hemostatic gauze is in an unfolded state.
[0035] Icons: 001-hemostatic umbrella; 002-hemostatic gauze; 003-delivery device; 301-first clamping position; 302-second clamping position; 310-push device; 320-delivery tube; 004-pulling device; 410-pulling handle; 420-pulling shaft; 430-sleeve; 440-support catheter; 005-pushing device; 501-buckle part; 510-pushing handle; 520-pushing tube. DETAILED DESCRIPTION
[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. For the convenience of position description, the "proximal end" refers to the end that is closer to the operator or the operating power source, and the "distal end" refers to the end that is farther from the operator or the operating power source.
[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] like Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, the blood vessel puncture hemostat provided by the embodiment of the present invention includes: a hemostatic parasol 001, a hemostatic gauze 002, a conveying device 003, a pulling device 004 and a pushing device 005; the pushing device 005 is inserted into the conveying device 003, and the pulling device 004 passes through the conveying device 003 and the conveying device 003; the distal end of the hemostatic parasol 001 is connected to the distal end of the pulling device 004, and the hemostatic gauze 002 is connected to the distal end of the pushing device 005.
[0040] During implantation, the hemostatic parasol 001 passes through the puncture port of the blood vessel and enters the blood vessel. The hemostatic parasol 001 may be in an umbrella-shaped or disc-shaped structure. The hemostatic parasol 001 may be pulled by the pulling device 004 to make it fit the inner wall of the blood vessel. Subsequently, the hemostatic yarn 002 may be pushed out of the conveying device 003 by the pushing device 005, and the hemostatic yarn 002 may be made to abut against the outer wall of the blood vessel. The puncture port of the blood vessel is blocked between the hemostatic parasol 001 and the hemostatic yarn 002, which not only has accurate positioning and is easy to operate, but also has better hemostasis reliability.
[0041] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in the embodiment of the present invention, the hemostatic parachute 001 is configured as an elastic mesh basket and has a radially contracted state and a flat state. Figure 1 , Figure 4 , Figure 5 and Figure 6 In the radial contraction state, the hemostatic parachute 001 rebounds, contracts in radial dimensions, and extends in the axial direction; see Figure 7 and Figure 8 In a flat state, the pulling device 004 pulls the hemostatic parasol 001, so that the hemostatic parasol 001 contracts axially, expands radially, and fits against the inner wall of the blood vessel. The hemostatic parasol 001 and the hemostatic gauze 002 can be accurately positioned relative to the blood vessel puncture port through the hemostatic parasol 001, and the hemostatic parasol 001 and the hemostatic gauze 002 clamp the blood vessel wall around the blood vessel puncture port together, thereby achieving a compression hemostasis effect.
[0042] Furthermore, in the flat state, the end face of the hemostatic umbrella 001 facing the inner wall of the blood vessel is unfolded along a spherical or circular plane. Among them, the hemostatic umbrella 001 is made of nickel-titanium alloy and has elasticity. The elastic basket is formed by carving or wire weaving, and the hemostatic umbrella 001 forms an approximately elliptical or cylindrical shape in the radial contraction state, so that the hemostatic umbrella 001 can smoothly pass through the blood vessel puncture. In the flat state, the hemostatic umbrella 001 is unfolded and attached to the inner wall of the blood vessel. The surface of the hemostatic umbrella 001 and the inner wall of the blood vessel is relatively smooth, the positioning is accurate, and the hemostatic effect is better.
[0043] like Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the hemostatic yarn 002 is configured as a shell ribose hemostatic yarn or a carboxymethyl cellulose hemostatic yarn, and has a curled state and an unfolded state; the hemostatic yarn 002 extends along the circumference of the hemostatic umbrella 001, and in the curled state, the hemostatic yarn 002 is curled and compressed into the conveying device 003, and in the unfolded state, the pushing device 005 pushes the hemostatic yarn 002 to move to the outside of the conveying device 003, so that the hemostatic yarn 002 is unfolded and abuts against the outer wall of the blood vessel. The shell ribose hemostatic yarn or the carboxymethyl cellulose hemostatic yarn has the effect of promoting rapid blood coagulation, so that the blood vessel puncture port can achieve rapid hemostasis under the dual effects of blood coagulation and compression.
[0044] If a single hemostasis operation fails, the pulling device 004 and the pushing device 005 can be operated in reverse, and then the hemostasis operation can be performed again, which can avoid medical accidents such as hemostasis failure and the presence of foreign matter in the vascular puncture site.
[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the conveying device 003 includes: a pusher 310 and a conveying tube 320; the conveying tube 320 is connected to the pusher 310, the pulling device 004 passes through the pusher 310 and the conveying tube 320, and the pushing device 005 is inserted into the conveying tube 320.
[0046] Specifically, the hemostatic yarn 002 in a rolled state is compressed in the delivery tube 320, the pulling device 004 passes through the delivery tube 320 and the hemostatic yarn 002, and the pulling device 004 is connected to the hemostatic umbrella 001, so that the hemostatic umbrella 001, the hemostatic yarn 002, the delivery tube 320 and the pulling device 004 remain coaxial.
[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, the pusher 310 has a first clamping position 301 and a second clamping position 302 , which are spaced apart along the axial direction of the delivery tube 320 , and both the first clamping position 301 and the second clamping position 302 are adapted to the pushing device 005 .
[0048] The first clamping position 301 and the second clamping position 302 are arranged in sequence from the proximal end to the distal end. The first clamping position 301 and the second clamping position 302 can be configured as a clamping slot or a clamping block. Figure 7 When the pushing device 005 is matched with the first clamping position 301, the hemostatic yarn 002 is in a curled state; see Figure 8 When the pushing device 005 is engaged with the second clamping position 302, the hemostatic gauze 002 is in an expanded state.
[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the pushing device 005 includes: a pushing handle 510 and a pushing tube 520 connected to the pushing handle 510 ; the pulling device 004 passes through the pushing tube 520 , the distal end of the pushing tube 520 abuts against the hemostatic gauze 002 , and the pushing tube 520 is inserted into the conveying tube 320 .
[0050] The push handle 510 can slide along the axial direction of the delivery tube 320 relative to the delivery device 003, thereby making the push tube 520 slide along the delivery tube 320. When the push handle 510 is pushed toward the distal end, the delivery tube 320 pushes the hemostatic yarn 002 out of the delivery tube 320, thereby unfolding the hemostatic yarn 002; when the push handle 510 is pulled toward the proximal end, the hemostatic yarn 002 can be pulled and retracted into the delivery tube 320; in an optional embodiment, the push tube 520 and the hemostatic yarn 002 can also be disconnected or detachably connected. When the push handle 510 is pulled toward the proximal end, the push tube 520 and the hemostatic yarn 002 are disengaged, and the delivery device 003 and the push device 005 can be withdrawn together after hemostasis is completed.
[0051] Furthermore, the push handle 510 is provided with a buckle portion 501, which is adapted to the pusher 310. The buckle portion 501 is configured as an elastic buckle or an openable and closable buckle, and the contact surface between the buckle portion 501 and the distal end of the first clamping position 301 is configured as an inclined surface. When the push handle 510 is pushed distally, the reaction force along the inclined surface can drive the buckle portion 501 to disengage from the first clamping position 301. After the push handle 510 is pushed further, the buckle portion 501 is matched with the second clamping position 302, and the second clamping position 302 can prevent the push handle 510 from reciprocating along the axial direction of the conveying tube 320 relative to the conveying device 003, thereby keeping the hemostatic yarn 002 in the unfolded state.
[0052] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the pulling device 004 includes: a pulling handle 410 and a pulling shaft 420 connected to the pulling handle 410 , and the distal end of the pulling shaft 420 is connected to the distal end of the hemostatic umbrella 001 .
[0053] Specifically, the pulling shaft 420 can be made of a metal or non-metallic soft wire, and the pulling shaft 420 can be pulled by pulling the pulling handle 410, so that the distal end of the hemostatic umbrella 001 can be compressed toward the proximal end, so that the hemostatic umbrella 001 is compressed to a flat state. The pulling shaft 420 and the hemostatic yarn 002 can be interference fit, and the pulling shaft 420 can be locked by the hemostatic yarn 002 after hemostasis, and a locking device for the pulling shaft 420 can also be added.
[0054] In an optional embodiment, an easy-to-release or easy-to-break notch can be provided in the middle of the pulling shaft 420, and further pulling the pulling handle 410 after the hemostasis operation is completed can cause the middle of the pulling shaft 420 to break. In another optional embodiment, the pulling handle 410 can be released a period of time after the hemostasis operation is completed, and the hemostatic umbrella 001 rebounds to a radially contracted state before the blood vessel puncture hemostat is completely withdrawn.
[0055] It should be noted that the pulling device 004 further includes: a sleeve 430 and a support catheter 440; the sleeve 430 is connected to the conveying device 003, the pulling shaft 420 passes through the support catheter 440 and the sleeve 430 and is connected to the pulling handle 410, and the support catheter 440 is abutted between the proximal end of the hemostatic parachute 001 and the sleeve 430. When the pulling handle 410 is pulled, the support catheter 440 abuts against the proximal end of the hemostatic parachute 001, and the hemostatic parachute 001 is squeezed between the distal end connection of the pulling shaft 420 and the support catheter 440, so that the hemostatic parachute 001 can be axially compressed and radially expanded, and the hemostatic parachute 001 can be flattened from the human body, which is more convenient to operate and has a better hemostatic effect.
[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A hemostatic device for a vascular puncture, characterized in that: include: A hemostatic umbrella (001), a hemostatic gauze (002), a conveying device (003), a pulling device (004) and a pushing device (005); The pushing device (005) is inserted into the conveying device (003), and the pulling device (004) passes through the conveying device (003) and the conveying device (003); The distal end of the hemostatic umbrella (001) is connected to the distal end of the pulling device (004), and the hemostatic yarn (002) is connected to the distal end of the pushing device (005); The pulling device (004) comprises: a pulling handle (410), a pulling shaft (420), a sleeve (430) and a supporting catheter (440); The pulling handle (410) is connected to the proximal end of the pulling shaft (420), the distal end of the pulling shaft (420) is connected to the distal end of the hemostatic umbrella (001), the sleeve (430) is connected to the conveying device (003), the supporting catheter (440) passes through the conveying device (003) and the hemostatic yarn (002), the pulling shaft (420) passes through the supporting catheter (440) and the sleeve (430) and is connected to the pulling handle (410), and the supporting catheter (440) is abutted between the proximal end of the hemostatic umbrella (001) and the sleeve (430); When the pulling handle (410) is pulled, the pulling shaft (420) drives the distal end of the hemostatic parachute (001) to be compressed toward the proximal end, and causes the hemostatic parachute (001) to expand along a spherical surface toward the end surface of the inner wall of the blood vessel to be positioned at the puncture port.
2. The blood vessel puncture hemostat according to claim 1, characterized in that: The hemostatic umbrella (001) is configured as an elastic mesh basket and has a radially contracted state and a flattened state; In the radially contracted state, the hemostatic umbrella (001) rebounds, contracts in radial dimensions, and extends in the axial direction; In the flattened state, the pulling device (004) pulls the hemostatic parachute (001) so that the hemostatic parachute (001) contracts axially, expands radially, and adheres to the inner wall of the blood vessel.
3. The blood vessel puncture hemostat according to claim 1, characterized in that: The hemostatic gauze (002) is configured as a chitosan hemostatic gauze or a carboxymethyl cellulose hemostatic gauze, and has a rolled-up state and an unfolded state; In the curled state, the hemostatic gauze (002) is curled and compressed into the delivery device (003); In the unfolded state, the pushing device (005) pushes the hemostatic gauze (002) to move to the outside of the conveying device (003), so that the hemostatic gauze (002) unfolds and abuts against the outer wall of the blood vessel.
4. The blood vessel puncture hemostat according to claim 1, characterized in that: The conveying device (003) comprises: a pusher (310) and a conveying tube (320); The delivery tube (320) is connected to the pusher (310), the pulling device (004) passes through the pusher (310) and the delivery tube (320), and the pushing device (005) is inserted into the delivery tube (320).
5. The blood vessel puncture hemostat according to claim 4, characterized in that: The pusher (310) has a first clamping position (301) and a second clamping position (302), the first clamping position (301) and the second clamping position (302) are arranged at intervals along the axial direction of the delivery tube (320), and the first clamping position (301) and the second clamping position (302) are both compatible with the pushing device (005).
6. The blood vessel puncture hemostat according to claim 4, characterized in that: The pushing device (005) comprises: a pushing handle (510) and a pushing tube (520) connected to the pushing handle (510); The pulling device (004) passes through the pushing tube (520), the distal end of the pushing tube (520) abuts against the hemostatic gauze (002), and the pushing tube (520) is inserted into the transport tube (320).
7. The blood vessel puncture hemostat according to claim 6, characterized in that: The pushing handle (510) is provided with a buckle portion (501), and the buckle portion (501) is adapted to the pushing device (310).