Miniature trephine handle with adsorption hemostasis function

Abstract

The invention provides a micro trephine handle for adsorption hemostasis, which belongs to the technical field of medical auxiliary instruments and comprises a trephine handle and a micro trephine needle. The adsorption hemostasis unit comprises a limiting sleeve, one end of the limiting sleeve is detachably connected with the top end of the trephine handle, and a channel for avoiding the micro trephine needle is formed in the limiting sleeve along the axis; the adsorption ring is hollow and sleeves the outer side of the micro trephine bit, one end of the adsorption ring is connected with the other end of the limiting sleeve through a plurality of elastic reset pieces, and a plurality of through holes are formed in the surface of the adsorption ring; one end of the drainage pipeline is communicated with the adsorption ring, and the other end of the drainage pipeline penetrates through the limiting sleeve; the liquid storage pipe is detachably connected to the bottom end of the trephine handle, and the liquid storage pipe is communicated with the liquid drainage pipeline through a drainage pipe. According to the skin trephine, the adsorption hemostasis unit capable of being elastically reset is erected at the position of the micro trephine needle, exuded blood can be rapidly adsorbed in the skin trephine operation, and the operation sight is prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary instruments, and particularly relates to a microdrill handle for adsorption hemostasis. Background Art

[0002] Acne vulgaris is a common skin disease. After acne vulgaris heals, scars often remain. Up to 95% of patients will have mild to moderate scars, and 30% of acne patients have severe scars. According to the morphological classification, acne scars can be divided into depressed scars, hypertrophic scars, and keloids. Among them, depressed scars are the most common, accounting for about 80% - 90%, manifested as skin depressions, or accompanied by pigmentation, and usually cannot recover on their own. According to the size of the scars, they are usually divided into ice pick scars, boxcar scars, and rolling scars. Currently, ultra-pulse CO2 fractional laser is commonly used in clinical treatment of depressed scars. Its principle is to use fractional photothermolysis to act on the deep dermis layer, stimulate collagen proliferation, and then play a role in repairing depressed scars. However, the recovery time of ultra-pulse CO2 fractional laser is relatively long. Increasing the number of treatments is likely to cause adverse reactions such as erythema, pain, pigmentation, skin dryness, and infection. The effect on ice pick scars and boxcar scars is not good, and it is difficult for some patients to accept. Therefore, ice pick scars and boxcar scars in acne depressed scars are currently difficult points in clinical treatment.

[0003] The microdrill technique uses a microdrill with an adjustable rotational speed and an inner diameter of 0.6 - 2.4 mm. The drill bit has a flared appearance, a high rotational speed, and can be externally connected to a negative pressure suction device. During operation, the microdrill bit can be deepened into the dermis layer by means of negative pressure and the rotational force of the drill bit. It can be used to complete trephine excision, trephine elevation, and trephine tissue transplantation. Compared with the traditional microdrill technique, the drill bit of the microdrill has a smaller inner diameter, more delicate and convenient operation, low cost, no consumables, simple operation, high efficiency, small wound surface, fast wound healing, and no need for suture after surgery, and has advantages such as satisfactory improvement in curative effect.

[0004] When performing microdrill operations on ice-pick and boxcar scars for depressed acne scars, clinicians often face significant challenges of bleeding from the wound after local anesthesia. Due to the rich blood supply of facial skin and the abnormal structure of the dermal layer in the acne scar area, most patients experience persistent bleeding at the minimally invasive incision after injection of local anesthetic drugs such as lidocaine. This bleeding not only delays the activation of the wound coagulation mechanism and prolongs the initial hemostasis time, but the formed blood film also mixes with the surrounding tissue fluid to form a translucent covering layer on the skin surface, seriously interfering with the clarity of the surgical field. When medical staff need to continuously process multiple scar sites, the blurred vision caused by bleeding forces the operator to frequently wipe or adjust the light source angle, not only reducing the accuracy of microdrill positioning, but also increasing the risk of accidental injury to the surrounding tissues. More importantly, the bleeding environment accelerates platelet aggregation and the release of inflammatory factors, which may induce local hematoma or scar hyperplasia, affecting the final cosmetic effect. However, the existing technology lacks a structure that can quickly stop bleeding. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a microdrill handle with adsorption hemostasis, which is provided with an adsorption hemostasis unit that can be elastically reset at the microdrill needle of the original microdrill, and can quickly adsorb the exuded blood during skin microdrill surgery to avoid affecting the line of sight.

[0006] The present invention provides the following technical solutions:

[0007] A microdrill handle with adsorption hemostasis, comprising a microdrill handle and a microdrill needle arranged at the top end of the microdrill handle; further comprising an adsorption hemostasis unit arranged on the microdrill handle; the adsorption hemostasis unit includes:

[0008] A limiting sleeve, one end of which is detachably connected to the top end of the microdrill handle, and is provided with a channel along the axis for avoiding the microdrill needle;

[0009] An adsorption ring, which is hollow inside and sleeved outside the microdrill needle, and one end of which is connected to the other end of the limiting sleeve through a plurality of elastic resetting members; a plurality of through holes are arranged on the surface of the adsorption ring;

[0010] A thrombin supply unit, arranged on the adsorption ring to provide thrombin;

[0011] A drainage pipe, one end of which is communicated with the adsorption ring, and the other end passes through the limiting sleeve and penetrates into the microdrill handle;

[0012] A liquid storage tube, detachably connected to the bottom end of the microdrill handle, and sharing a negative pressure suction device with the microdrill needle; the liquid storage tube is communicated with the drainage pipe through a drainage tube.

[0013] Preferably, the thrombin supply unit includes:

[0014] A rotating collar is sleeved on the outer sides of the micro-trepanation needle, the drainage pipe and the plurality of elastic reset members; one end of the rotating collar is sleeved on the other end of the limiting sleeve and is rotatably connected to the limiting sleeve;

[0015] A plurality of thrombin supply spheres are evenly rotated in the circumferential direction and embedded at the other end of the adsorption ring; the thrombin supply spheres are embedded with thrombin and have holes for releasing thrombin;

[0016] A rotating ring plate is sleeved on the outer side of the micro-trephine needle, and a plurality of blood discharge holes and thrombin supply sphere avoidance holes are opened on the plate surface; the rotating ring plate is connected to the rotating sleeve ring through a plurality of telescopic parts; one end of the rotating ring plate is in contact with a plurality of the thrombin supply spheres;

[0017] When the rotating ring rotates, the thrombin supply sphere is driven to rotate, or the hole is turned outward and the thrombin supply sphere avoidance hole is aligned with the thrombin supply sphere, or the hole is turned inward so that the blood discharge hole is aligned and connected with the through hole of the adsorption ring.

[0018] Preferably, the holes of the plurality of thrombin supply spheres are inclined and face the tube wall of the micro-trephine needle respectively.

[0019] Preferably, an annular guide groove is formed at the bottom of the rotating ring plate; the bottom of the annular guide groove abuts against the tops of the plurality of thrombin supplying spheres.

[0020] Preferably, the telescopic member is a telescopic rod, comprising a sleeve and a rod member that are sleeved together; a buffer spring is arranged in the telescopic rod, one end of the buffer spring is fixedly connected to the bottom of the sleeve, and the other end is fixedly connected to one end of the rod member.

[0021] Preferably, the elastic return element is a return spring.

[0022] Preferably, the drainage pipe and the drainage tube are flexible pipes.

[0023] Preferably, the limiting sleeve is connected to the top end of the trephine handle via a thread; the liquid storage tube is connected to the bottom end of the trephine handle via a thread.

[0024] Preferably, a medical adsorption sponge is provided on the surface of the rotating ring plate.

[0025] Beneficial effects of the present invention:

[0026] The present invention provides a microtrephine handle for adsorbing and stopping bleeding. In order not to affect the operation of the microtrephine and the operation of static bleeding adsorption, the present invention proposes an elastic reset type adsorption hemostasis unit. After the trephination, the adsorption ring of the adsorption hemostasis unit contacts the skin surface, and through the multiple through holes opened on the surface of the adsorption ring, combined with a drainage tube, a liquid discharge pipeline and a liquid storage tube at the end of the handle, and combined with a negative pressure device, the bleeding on the skin surface can be quickly adsorbed and processed, achieving hemostasis and improving the clarity of the surgical field, which is convenient for subsequent surgical treatment at other trephination points. The present invention also provides a thrombin supply unit. By rotating the ring plate to drive the thrombin supply sphere to rotate, the thrombin is scattered to the trephination point to achieve drug hemostasis. The thrombin is sprinkled onto the microtrephine needle through the inclined holes of the thrombin supply sphere, and the microtrephine needle can bring the thrombin into the trephination point and enter the tissue to achieve drug hemostasis. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall assembly structure diagram of the microtrephine handle for adsorbing and stopping bleeding according to the embodiment of the present invention;

[0028] Figure 2 is the partial structure diagram of the microtrephine handle for adsorbing and stopping bleeding according to the embodiment of the present invention;

[0029] Figure 3 is the partial structure diagram of the microtrephine handle for adsorbing and stopping bleeding from another angle according to the embodiment of the present invention;

[0030] Figure 4 is the top view of the microtrephine handle for adsorbing and stopping bleeding according to the embodiment of the present invention.

[0031] Among them, 1, microtrephine needle; 2, trephine handle; 3, drainage tube; 4, liquid storage tube; 5, negative pressure pipeline; 6, limit sleeve; 7, rotating collar; 8, telescopic rod; 9, return spring; 10, adsorption ring; 11, thrombin supply sphere; 12, rotating ring plate; 13, blood discharge hole; 14, liquid discharge pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] Embodiment

[0036] When the microtrephine is used to operate on ice-pick and boxcar-like scars of depressed acne scars, most patients have local bleeding at the wound after local anesthesia. This not only affects wound healing but also affects the operation vision of subsequent other points, making it inconvenient for medical staff to perform subsequent trephine operations. For this reason, this embodiment proposes a microtrephine for adsorptive hemostasis, and the specific structure is as Figure 1 shown, including a trephine handle 2 and a microtrephine needle 1 provided at the top of the trephine handle 2. On this basis, the present invention also includes an adsorptive hemostasis unit and a thrombin supply unit mounted on the trephine handle 2. The detailed structure is as Figure 2 and Figure 3 shown, both are partial structure diagrams of different perspectives of the end of the microtrephine.

[0037] The adsorption hemostasis unit of the present invention is mounted on the end of the trephine handle 2 in an elastic limiting manner, and does not contact the microtrephine needle 1 during trephine. Specifically, the adsorption hemostasis unit includes a limiting sleeve 6, an adsorption ring 10, a drainage pipe 14 and a liquid storage tube 4. One end of the limiting sleeve 6 is detachably connected to the top of the trephine handle 2, and a channel for avoiding the micro-trephine needle 1 is provided along the axis thereof; the adsorption ring 10 is hollow inside and is sleeved on the outside of the micro-trephine needle 1, and one end thereof is connected to the other end of the limiting sleeve 6 through a plurality of elastic reset parts; a plurality of through holes are provided on the surface of the adsorption ring 10; one end of the drainage pipe 14 is connected to the adsorption ring 10, and the other end passes through the limiting sleeve 6 and penetrates the trephine handle 2; the liquid storage tube 4 is detachably connected to the bottom end of the trephine handle 2, and shares a negative pressure suction device with the micro-trephine needle 1; the liquid storage tube 4 is connected to the drainage pipe 14 through the drainage tube 3, and a complete closed-loop adsorption channel is formed by the liquid storage tube 4, the drainage tube 3, the drainage pipe 14 and the adsorption ring 10, so as to achieve the treatment of bleeding on the skin surface. Among them, the elastic reset part is a reset spring 9 or other elastic reset part, and can also be an elastic telescopic rod. The drainage pipe 14 and the drainage pipe 3 are flexible pipes, which are easy to install and disassemble, and do not affect the trephine operation.

[0038] The adsorption hemostasis units of the present invention are all detachable disposable products, which are fixed to the micro-trephine needle 1 by threaded connection. The whole adopts the negative pressure principle for adsorption. When the micro-trephine needle 1 pierces the trephine point, the adsorption ring 10 will come into contact with the external skin surface near the trephine point, and negative pressure adsorption will not affect the overall trephine operation.

[0039] like Figure 4 As shown, Figure 4 It is a top view. The thrombin supply unit includes a rotating collar 7, a rotating ring plate 12 and a plurality of thrombin supply spheres 11. The rotating collar 7 is sleeved on the outside of the micro-trephine needle 1, the drainage pipe 14 and a plurality of elastic reset parts; one end of the rotating collar 7 is sleeved on the other end of the limiting sleeve 6 and is rotatably connected with the limiting sleeve 6; a plurality of thrombin supply spheres 11 are uniformly rotated in the circumferential direction and embedded in the other end of the adsorption ring 10; the thrombin supply sphere 11 has thrombin built in it and is provided with holes for releasing thrombin; the rotating ring plate 12 is sleeved on the outside of the micro-trephine needle 1, and the plate surface is provided with a plurality of blood discharge holes 13 and thrombin supply sphere avoidance holes, and has a medical adsorption sponge for auxiliary adsorption; the rotating ring plate 12 is connected to the rotating collar 7 through a plurality of telescopic parts; one end of the rotating ring plate 12 is in contact with a plurality of thrombin supply spheres 11. The telescopic member is a telescopic rod 8, which includes a sleeve and a rod. A buffer spring is arranged in the telescopic rod 8, one end of the buffer spring is fixedly connected to the bottom of the sleeve, and the other end is fixedly connected to one end of the rod. The arrangement of the telescopic member can effectively drive the rotating ring plate 12 to rotate, and does not affect the telescopic movement of the adsorption ring 10 during the trephination treatment of the microtrephination needle 1.

[0040] The present invention also provides some structural optimization solutions, such as Figure 2 and Figure 3 As shown, first of all, in order to enable the drug to enter the interior of the tissue, the holes of the plurality of thrombin supply spheres 11 are inclined and respectively face the tube wall of the microtrephine needle 1. The thrombin is sprinkled onto the microtrephine needle through the inclined holes of the thrombin supply sphere, and the microtrephine needle can bring the thrombin into the trephination point and enter the tissue interior to achieve drug hemostasis. Secondly, in order to facilitate driving the stable rotation of the thrombin supply sphere 11, an annular guide groove is provided at the bottom of the rotating ring plate 12; the bottom of the annular guide groove abuts against the tops of the plurality of thrombin supply spheres 11, so that the rotating ring plate 12 can smoothly drive the plurality of thrombin supply spheres 11 to rotate under the drive of the rotating collar 7, realizing the exposure or concealment of the holes of the thrombin supply sphere 11.

[0041] In this embodiment, the supply of thrombin and the seepage blood adsorption are staggered operations, which are controlled by the rotating collar 7. Specifically, the rotation and negative pressure adsorption of the microtrephine needle 1 in the microtrephine handle are still controlled by the pedal in the existing equipment. The liquid storage tube 4 and the microtrephine needle 1 share a negative pressure suction device, but use different negative pressure channels. After performing the trephination operation, press the trephination point for several seconds through the rotating ring plate 12 to perform negative pressure seepage blood adsorption, and then rotate the rotating collar 7 to drive the thrombin supply sphere 11 to rotate, turn out the holes and align the avoidance hole of the thrombin supply sphere with the thrombin supply sphere 11 at the same time to achieve thrombin supply. After the thrombin supply is completed, the entire microtrephine handpiece can be taken away. By rotating the rotating collar 7, the holes are rotated to align the blood drainage hole 13 with the through hole of the adsorption ring 10 again to wait for the surface seepage blood adsorption at the next trephination point.

[0042] In this embodiment, the present invention innovatively proposes a microtrephine device integrated with an adsorption hemostasis function, and its core breakthrough lies in the research and development of an elastic reset type adsorption hemostasis unit. This unit adopts an annular adsorption structure design, and its unique feature is that: after the trephination operation is completed, the adsorption ring is accurately attached to the skin surface through an elastic reset mechanism, and the microporous array distributed on the surface forms a directional adsorption flow channel under the drive of a negative pressure device. The fluid path design from the drainage tube, the drainage pipeline to the liquid storage tube at the end of the handle can realize the instantaneous negative pressure suction of the wound surface seepage blood and quickly establish a clear vision within 3-5 seconds. This dynamic adsorption mechanism not only avoids the occlusion of the operation vision by traditional compression hemostasis, but also maintains the cleanliness of the operation area through continuous seepage liquid management, creating favorable conditions for multi-point continuous operation.

[0043] To construct a dual hemostasis guarantee system, the present invention synchronously designs a thrombin-targeted delivery unit. Its innovation lies in the use of a rotatable ring plate to drive a thrombin-carrying sphere, and the controlled release of the drug is achieved through specially designed inclined drug-discharging holes on the surface of the sphere. When the operator rotates the ring plate, the thrombin particles can either directly fall onto the trephine wound through the holes on the surface of the sphere or be transported to the subcutaneous tissue through the spiral grooves of the micro-trephine needle, forming a "surface-deep" biphasic hemostatic effect. This mechanical-drug synergistic hemostasis strategy not only significantly improves the hemostasis efficiency but also promotes the formation of an early fibrin network through the tissue penetration of thrombin, creating an ideal microenvironment for wound repair.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A micro trephine handle for adsorption hemostasis, comprising a trephine handle (2) and a micro trephine needle (1) provided at the top of the trephine handle (2); characterized in that, It also includes an adsorption hemostasis unit mounted on the trephine handle (2); the adsorption hemostasis unit includes: A limiting sleeve (6), one end of which is detachably connected to the top end of the trephine handle (2), and a channel is opened along the axis of the limiting sleeve to avoid the micro-trephine needle (1); The adsorption ring (10) is hollow inside and is sleeved on the outside of the micro-trepanation needle (1), and one end of the adsorption ring is connected to the other end of the limiting sleeve (6) through a plurality of elastic reset parts; a plurality of through holes are formed on the surface of the adsorption ring (10); A thrombin supply unit is mounted on the adsorption ring (10) to provide thrombin; A liquid discharge pipe (14), one end of which is connected to the adsorption ring (10), and the other end of which passes through the limiting sleeve (6) and penetrates into the trephine handle (2); The liquid storage tube (4) is detachably connected to the bottom end of the trephine handle (2) and shares a negative pressure suction device with the micro-trephine needle (1); the liquid storage tube (4) is connected to the liquid discharge pipeline (14) through the drainage tube (3).

2. The microtrephine handle for adsorption hemostasis according to claim 1, characterized in that, The thrombin supply unit comprises: A rotating collar (7) is sleeved on the outer sides of the micro-trepanation needle (1), the drainage pipe (14) and the plurality of elastic reset members; one end of the rotating collar (7) is sleeved on the other end of the limiting sleeve (6) and is rotatably connected to the limiting sleeve (6); A plurality of thrombin supply spheres (11) are evenly rotated in the circumferential direction and embedded at the other end of the adsorption ring (10); the thrombin supply spheres (11) contain thrombin and are provided with holes for releasing thrombin; A rotating ring plate (12) is sleeved on the outer side of the micro-trephine needle (1), and a plate surface is provided with a plurality of blood discharge holes (13) and thrombin supply sphere avoidance holes; the rotating ring plate (12) is connected to the rotating sleeve ring (7) through a plurality of telescopic parts; one end of the rotating ring plate (12) is in contact with the plurality of thrombin supply spheres (11); When the rotating ring (7) rotates, the thrombin supply sphere (11) is driven to rotate, or the hole is turned outward and the thrombin supply sphere avoidance hole is aligned with the thrombin supply sphere (11), or the hole is turned inward so that the blood discharge hole (13) is aligned and connected with the through hole of the adsorption ring (10).

3. The microtrephine handle for adsorption hemostasis according to claim 2, wherein The holes of the plurality of thrombin supplying spheres (11) are inclined and face the tube wall of the micro-trephine needle (1) respectively.

4. The microtrephine handle for adsorption hemostasis according to claim 2, characterized in that, An annular guide groove is provided at the bottom of the rotating ring plate (12); the bottom of the annular guide groove abuts against the tops of the plurality of thrombin supplying spheres (11).

5. The microtrephine handle for adsorption hemostasis according to claim 2, characterized in that, The telescopic member is a telescopic rod (8), comprising a sleeve and a rod member that are sleeved together; a buffer spring is arranged inside the telescopic rod (8), one end of the buffer spring is fixedly connected to the bottom of the sleeve, and the other end is fixedly connected to one end of the rod member.

6. The microtrephine handle for adsorption hemostasis according to claim 1, characterized in that, The elastic return element is a return spring (9).

7. The microtrephine handle for adsorption hemostasis according to claim 1, characterized in that, The liquid discharge pipe (14) and the drainage pipe (3) are flexible pipes.

8. The microtrephine handle for adsorption hemostasis according to claim 1, characterized in that, The limiting sleeve (6) is connected to the top end of the trephine handle (2) via a thread; and the liquid storage tube (4) is connected to the bottom end of the trephine handle (2) via a thread.

9. The microtrephine handle for adsorption hemostasis according to claim 2, characterized in that, A medical adsorption sponge is arranged on the surface of the rotating ring plate (12).

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