CN211674364U - Special multi-strain hair transplanter for eyebrows, beards, patella corners and body hairs - Google Patents

Abstract

A special multi-strain hair transplanter for eyebrows, beards, patella and body hairs belongs to the technical field of medical instruments. In order to overcome the defects that the existing hair transplantation instrument can only plant one strain of hair in one operation action, the novel hair transplantation instrument is provided with a needle tube component, a pressing key component, a spring, a shell, a protective cap and a bolt component, wherein the needle tube component comprises a plurality of needle tubes, and the pressing key component comprises a plurality of needle cores. The needle tubes are arranged in a triangular or trapezoidal array, and the tips of the needle tubes are sequentially retreated or advanced row by row so as to adapt to the shape of the hair and the angle required by planting. The novel hair transplantation device can be used for patients needing the hair transplantation treatment clinically. During operation, a nurse loads hairs to be transplanted at the tips of the needle tubes for standby, and a doctor presses the pressing key once to implant a plurality of hairs in different operation areas and quickly form the hairs. The operation field is clearly distinguished, soft tissues can be prevented from being extruded mutually, the wound is reduced, no trace is left after healing, the operation time is obviously shortened, and the survival rate is improved.

Description

Special multi-strain hair transplanter for eyebrows, beards, patella corners and body hairs

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel medical hair transplantation surgical instrument.

Background

At present, the existing medical hair transplantation instruments comprise an implantation needle and an implantation pen. The planting needle is used for broadcasting a needle eye on the scalp by using a needle head, and then the single hair follicle is planted manually by using tweezers. The planting pen is similar to an injector in shape and structure, and when the planting pen is used, a single hair follicle is filled in the planting pen firstly, then a needle eye is broadcasted on the scalp by a needle head, and the hair follicle is pushed in by an in-pen mechanism.

The existing planting needle can only broadcast one needle eye, only one hair can be transplanted at a time, and the hair needs to be manually clamped and implanted by tweezers during transplantation, so that the efficiency is low. The existing planting pen only can be used for pre-filling one hair follicle, only one hair follicle can be transplanted after one operation, in the hair transplantation operation, a nurse is required to rapidly and repeatedly replace the planting pen for many times, a single hair plant is repeatedly placed into the planting pen for many times, a doctor repeatedly operates and replaces the planting pen for many times, and the working efficiency is also low. Both the planting needle and the planting pen need frequent operations of doctors and nurses for multiple times (for example, hair loss repairing operations such as eyebrow, beard, patella and the like caused by large-area eyebrow burning/scalding/trauma and the like, repairing, reconstructing and transplanting operations for eyebrow, beard, patella and the like with congenital defects, only a single item needs to repeatedly act for multiple times of 600 to 3 thousands, and the longest operation time can reach 6 hours). The mode of transplanting one hair follicle at a time and repeating operation actions for multiple times seriously influences the operation progress, prolongs the operation time, wastes a large amount of manpower and material resources and causes unnecessary damage to the spirit and the flesh of a patient.

Disclosure of Invention

In order to overcome the not enough that an operation action of current medical hair transplantation apparatus can only plant a hair, this is novel to provide a neotype medical hair transplantation operation transplantation apparatus, and this apparatus can implant the required hair of the many plants in different art districts through an operation action, can implant 10 ~ 30 many plants and more simultaneously. In order to adapt to the condition that hairs such as eyebrows, beards, patella corners, negative hairs and the like have certain shapes, the formation of the needle tubes of the device is arranged according to a triangular or trapezoidal array; in order to adapt to the condition that hairs such as eyebrows, beards, patella angles, negative hairs and the like form a certain angle with skin (namely the angle required for hair transplantation), the tips of the needle tubes are sequentially retreated (or advanced) row by row, so that all the needle tips are positioned in a plane forming a certain acute angle with the longitudinal axis of the instrument. The novel hair transplantation device can be used for patients who need hair transplantation treatment such as eyebrow, beard, patella and body hair clinically. When the instrument is used for an operation, the operation field resolution is clear, the defects of uneven stress and mutual extrusion of soft tissues can be avoided, the bleeding infection probability of the operation can be obviously reduced, the tissue trauma is reduced, the risk of occurrence of operation complications is reduced, the operation time can be obviously shortened, the hair survival rate is greatly improved, and a large amount of manpower and material resources are saved.

This novel technical problem who solves, the technical scheme who adopts is: the needle tube component is formed by embedding and fixing a plurality of needle tubes in a needle tube seat, the pressing key component is formed by embedding and fixing a plurality of needle cores in the pressing key, a needle tube seat contained in the needle tube component is connected with the shell through the bolt component, the side wall of the needle tube seat is tightly matched with the inner side wall of an opening of the protective cap, the protective cap can be tightly covered on the side wall of the needle tube seat, the pressing key component is supported on the needle tube seat through a spring sleeved on part of the needle cores, and the upper end of the pressing key extends out of a hole in the top of the shell.

In order to adapt to the condition that hairs such as eyebrows, beard, patella, pubic hairs and the like form a certain angle with skin, the tips of the needle tubes are sequentially retreated (or advanced) row by row, so that all needle tips are positioned in a plane forming a certain acute angle with the longitudinal axis of the instrument, and the needle can be inserted at an inclined angle. The needle tip is provided with a semi-open groove, the opening of which faces outwards along the radial direction of the transplanting device, so that the sight is clear when the hair follicle is placed in the transplanting device. The needle tubes are arranged in a triangular or trapezoidal array and are embedded and fixed on the needle tube seat, the other ends of the needle tubes penetrate out of the lower end face of the needle tube seat for a certain length, and the open grooves at the tip parts of the needle tubes are completely positioned outside the lower end of the needle tube seat, so that hair follicles for transplantation are placed in the grooves. The upper end of the needle tube position embedded in the needle tube seat is provided with a through hole, the diameter of the through hole is slightly larger than the diameter of the needle core and slightly smaller than the diameter of the needle tube, and the through hole is connected with the inner cavity of the needle tube and forms a movement channel of the needle core. The bottom surface of the lower end of the needle tube seat is provided with a plurality of needle tubes which penetrate out, and the rest parts are closed, so that blood is prevented from entering the shell during operation. The needle tube seat is provided with a hole for installing a bolt so as to connect and fix the needle tube seat and the shell through a bolt and a nut, and the needle tube seat is fixed on the edge of the shell through the hole by the bolt and the nut. The side wall of the needle tube seat is wedge-shaped and necking-shaped, and is provided with an arc-shaped groove which is convenient to be tightly matched with an arc-shaped boss arranged on the inner side wall of the opening of the protective cap, so that the protective cap is tightly covered.

One end of a plurality of needle cores arranged in a triangular or trapezoidal array is embedded and fixed in the press key to form a press key assembly. The array shape of the plurality of needle cores is the same as the array shape of the plurality of needle tubes, and the positions of the plurality of needle cores and the positions of the plurality of needle tubes are in one-to-one correspondence. In the installation state, the other ends of the needle cores penetrate through the through holes on the installation seat and the inner cavities of the needle tubes according to the one-to-one correspondence relationship and can move in the inner cavities of the needle tubes. The upper end of the pressing key extends out of the shell, and the lower end of the pressing key is arranged in the shell and bears and transmits pressing force during hair transplantation operation.

The spring is sleeved on part of the needle core, the spring is arranged on part of the needle core according to requirements, and the spring is generally sleeved on the needle core at the edge, the top end and the central position of the triangular array and the trapezoidal array. The spring is arranged between the pressing key and the needle tube seat, one end of the spring is contacted with the pressing key, and the other end of the spring is contacted with the needle tube seat. The spring plays the role of supporting the pressing key and buffering and adjusting the pressing force and rebounding the needle core.

The shell plays the roles of connecting, fixing and protecting the internal mechanism. The center of the top end surface of the shell is provided with a through hole, and a movement channel is reserved for the upper end of the pressing key. The inner wall of the shell is provided with a boss which has the function of preventing the key from being pressed down to exceed the limit, limiting the deformation of the spring and controlling the movement distance of the needle core in the needle tube. The lower end of the shell is provided with a through hole along which the shell and the needle tube seat are connected and fixed by bolts and nuts.

The shape of the side wall of the protective cap is also wedge-shaped and flaring-shaped, and the inner side wall of the protective cap is tightly matched with the outer side of the needle tube seat; an arc-shaped boss is arranged on the inner side wall of the opening of the protective cap, and the inner side of the protective cap is connected with the outer side of the needle tube seat in a clamping mode of boss and groove. When the apparatus is not used at ordinary times, the protective cap can be covered on the side wall of the needle tube seat tightly to play a role in protecting the tips of the needle tubes.

Through the integrated design, especially the length of spare part such as spring, the nook closing member, the needle tubing, the equidimension cooperation design such as the distance of boss to casing top, the length of each nook closing member adapts to the needle tubing that corresponds respectively, under standby state, when not pressing the press key, the length of each nook closing member should ensure that its head is located each needle tubing recess upper portion just, when pressing the press key, press key compression spring, drive a plurality of nook closing members simultaneously and move in corresponding needle tubing, a plurality of nook closing members promote the hair follicle that a plurality of needle tubing recess positions placed to needle tubing point portion motion, when pressing the key and touch the boss in the casing, the nook closing member moves needle tubing point portion position. In the pressing process, the spring plays a role in adjusting the pressure, the boss prevents the downward pressing excess of the pressing key, the deformation of the spring is limited, the moving distance of the needle core in the needle tube is controlled, and the effect of adjusting the ejection length of the needle core is achieved.

On the operating table, the nurse puts into a plurality of needle tube recesses of this apparatus respectively with the micro-tweezers with a plurality of hair follicles that will treat to transplant, accomplishes a plurality of hair follicles and puts into the back for use, and this apparatus is penetrated into operation district skin with a plurality of needle tube point portions simultaneously to doctor's right hand, and the thumb is pressed and is pressed the key, and a plurality of hair follicles once only transplant to the operation district, extract the needle tube point, and the action is accomplished.

In order to facilitate the disassembly and reassembly required for cleaning and disinfection, the main functional part of the pressing key assembly and the needle tube assembly in the shell are in modular design and are independent modules formed by processing and manufacturing, and a user does not need to assemble and combine the pressing key assembly and the needle tube assembly. For users and maintainers, the instrument can be disassembled into the following independent parts or assemblies: the device comprises a shell, a pressing key assembly, a needle tube assembly, a spring, a protective cap, a bolt and a nut.

This neotype beneficial effect is:

the novel needle tube has the advantages that the needle tubes and the needle cores are arranged in a triangular or trapezoidal array, the tips of the needle tubes are sequentially retreated (or advanced) row by row, all the needle tips are positioned in a plane forming a certain acute angle with the longitudinal axis of the instrument, and the needle tube is suitable for planting eyebrow, beard, patella, pubic hair and other hairs forming a certain angle with skin. The pressing key is pressed once, a plurality of hairs in different receiving areas are implanted simultaneously through a plurality of needle cores and needle tubes, the hairs such as eyebrow shapes, beard, patella corners and body hairs can be quickly formed as required, and the pressing key is simple, accurate, safe, reliable and quick and is convenient for doctors and nurses to work at high speed and high quality. Compared with the existing single-needle mode hair planting needle, the time for medical care of patients is greatly reduced, the consumption of a large amount of manpower and material resources caused by operation in a small operation area and a small visual field in one posture is avoided, and the risk of infection and complication is reduced. When this apparatus is used in the operation, can many nurses surround operating table device hair follicle on a plurality of transplanters, can supply the doctor to transplant fast in the confession district, obviously shorten the operating time, obviously increase the hair transplantation survival rate, risk takes place for greatly reduced infection and complication, alleviates patient's unnecessary injury and misery. In addition, the instrument has few parts and components, is easy to disassemble and assemble and is convenient to clean and disinfect. The functional components of the device, namely the pressing key component and the needle tube component, are in modular design, and can be conveniently and integrally replaced after a fault occurs.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a projection view of the relative positions of components such as the casings, pressing keys, needle tubes, and bolts of the multi-strain eyebrow/beard/patella/body hair transplanter in the axial direction, and is a schematic view of the relative positions of components such as the casings, pressing keys, needle tubes, and bolts of the multi-strain eyebrow/beard/patella/body hair transplanter in which 10 needle tubes and needle cores are arranged in a triangular array. In the structure shown in the figure, six section positions A-A, B-B, C-C, D-D, E-E, F-F are taken, and the internal structure of the instrument is shown by combining the following section views.

Fig. 2, 3, 4, 5, 6 and 7 are sectional views of six sections a-A, B-B, C-C, D-D, E-E, F-F of the implant of fig. 1, illustrating the internal structure of the present apparatus.

Fig. 8 is a sectional view taken at a position G-G in fig. 7 to explain a cross-sectional structure of the boss in the case to understand the shape of the boss.

Fig. 9 is an exploded view of the present apparatus as generally shown in fig. 5. To illustrate the internal details of the instrument.

FIG. 10 is a schematic structural view of the needle cannula assembly with the upper half in cross-section, taken at section H-H, and the lower half in section H-H.

FIG. 11 is an enlarged longitudinal cross-sectional view of the tip portion of the needle cannula along the direction of the slit. At various locations on the tip of the needle, four cross-sectional locations J-J, K-K, L-L, M-M are taken radially, these four cross-sections being shown in FIG. 12.

FIG. 12 is an enlarged view of the radial cross-section of the tip portion of the needle cannula. Wherein J, K, L, M are cross-sectional views of the four positions J-J, K-K, L-L, M-M in FIG. 4. Fig. 12 illustrates, in conjunction with fig. 11, the configuration and shape of the tip of the needle cannula.

FIG. 13 is a cross-sectional view of a needle cannula assembly of the hair transplanter illustrating 26 needle cannulae and 26 mandrels.

In the figure, 1 is the housing edge, 2 is the housing outer wall, 3 is the housing inner wall, 4 is the hub seating edge, 5 is the screw position, 6 is the needle bore position, 7 is the housing, 8 is the boss, 9 is the housing edge, 10 is the pressing key assembly, 11 is the needle assembly, 12 is the spring, 13 is the protective cap, 14 is the bolt and nut assembly, 15 is the pressing key, 16 is the hub, 17 is the needle seat, 18 is the needle.

Detailed Description

The overall structure of the utility model is shown in figures 1-9, the instrument is mainly composed of a needle tube component (11), a pressing key component (10), a spring (12), a shell body (7), a protective cap (13) and a bolt and nut component (14), the needle tube component (11) is formed by embedding and fixing a plurality of needle tubes (18) on a needle tube seat (17), the pressing key component (10) is formed by embedding and fixing a plurality of needle cores (16) on a pressing key (15), the needle tube seat (17) contained in the needle tube component (11) is connected with the shell (7) through a bolt and nut component (14), the side wall of the needle tube seat (17) is tightly matched with the inner side wall of an opening of a protective cap (13), the protective cap (13) can be tightly covered on the side wall of the needle tube seat (17), the pressing key component (10) is supported on the needle tube seat (17) through a spring (12) sleeved on part of the needle cores (16), and the upper end of the pressing key (15) extends out of a hole in the top of the shell (7). Fig. 1 to 10 show an example of the internal structure of the transplanting device exemplified by 10 needle cores (16) and 10 needle tubes (18) arranged in a triangular array, and components such as the push key assembly (10) and the needle tube assembly (11) corresponding thereto.

The structure and function of the needle cannula assembly (11). As shown in fig. 1 to 7 and 8 to 10, a plurality of needle tubes 18 are mounted and fixed to a needle tube holder 17 at a predetermined depth in an array of a triangle, a trapezoid, or the like to form a needle tube assembly 11. In order to adapt to the condition that hairs such as eyebrows, beards, patellas, pubic hairs and the like form a certain angle with the skin, the tips of the needle tubes (18) are sequentially retreated (or advanced) row by row, so that all the needle tips are positioned in the same plane forming a certain acute angle with the longitudinal axis of the instrument, and the needle can be obliquely inserted at a certain angle, as shown in figures 5, 6, 7, 9 and 10. The design mode not only facilitates the needle insertion at an inclined angle, but also can quickly shape eyebrow/beard/patella/female hair and the like according to requirements. Fig. 11 and 12 show the structure of the pointed end of the needle cannula (18), and fig. 12 is a cross-sectional view of the position of the head J-J, K-K, L-L, M-M of the needle cannula (18) in fig. 11. the pointed end of the needle cannula (18) is provided with open grooves, the openings of the grooves are all outward along the radial direction (taking the central axis of the shell as the center), so that the grooves are all clearly visible when the shell is rotated during operation, and the hair follicle can be conveniently, safely and accurately placed. A plurality of needle tubes (18) extend from the lower end of the needle tube base (17) to a certain length, and a groove at the tip of each needle tube (18) is ensured to be positioned outside the lower end of the needle tube base (17) so as to place hair follicles for transplantation into the furrow. A through hole with the diameter slightly smaller than that of the inner cavity of the needle tube (18) is formed at the position of the needle tube seat (17) where the needle tube (18) is installed and is connected with the inner cavity of the needle tube (18) to form a moving channel of the needle core (16). The lower end of the needle tube seat (17) is arranged in a step shape at the installation position of the plurality of needle tubes (18) and plays a role of protecting and fixing the needle tubes (18). The lower end of the needle tube seat (17) is closed except the holes formed by the plurality of needle tubes (18), thereby playing the role of fixing the needle tubes and preventing blood and the like from entering the shell (7) during operation. As shown in fig. 1 and 7, a hole for mounting a bolt is provided in the needle holder 17 so as to fix the needle holder 17 to the housing 7 by a bolt-and-nut assembly 14. As shown in fig. 2-7 and 9-10, the side wall of the needle tube seat (17) is provided with an arc-shaped groove corresponding to and matching with the shape and size of an arc-shaped boss arranged on the inner wall of the opening part of the protective cap (13) so as to realize tight fit connection with the protective cap (13).

The push key assembly (10) is structurally and functionally. The structure of the push key assembly (10) is as shown in fig. 2 to 7 and 9. One end of each of the plurality of needle cores (16) is embedded at a certain depth of the bottom end of the pressing key (15) to form a pressing key assembly (10). The plurality of needle cores (16) are arranged in a triangular or trapezoidal array and are controlled by pressing the key (15) one key. The other ends of the needle cores (16) penetrate through the through holes on the needle tube seat (17) and the inner cavities of the needle tubes (18) according to the one-to-one corresponding relation and can move in the inner cavities of the needle tubes (18). The upper end of the pressing key (15) extends out of the shell (7), the lower end is arranged in the shell (7), and the pressing key receives and transmits pressing force during hair transplantation operation.

The mounting position and the function of the spring (12). As shown in fig. 3 to 7, the spring (12) is sleeved on a part of the needle core (16), the spring (12) is arranged on the part of the needle core (16) according to requirements, and the spring (12) is generally sleeved on the needle core (16) at the edge, the top end and the center of the triangular or trapezoidal array. The spring (12) is arranged between the pressing key (15) and the needle tube seat (17), one end of the spring is contacted with the pressing key (15), and the other end of the spring is contacted with the needle tube seat (17), thereby playing the roles of supporting the pressing key (15) and buffering and adjusting the pressing force and rebounding the needle core (16).

The structure and function of the housing (7). The shape and structure of the housing (7) are shown in fig. 1-9, and the main function of the housing is to connect, fix and protect the components in the housing. The top end surface of the shell (7) is provided with a through hole, and a movement channel is reserved for the upper end of the pressing key (15). The shell (7) is internally provided with a boss (8) which has the functions of preventing the key (15) from being pressed down to exceed the limit, limiting the deformation of the spring (12) and controlling the movement distance of the needle core (16) in the needle tube (18). As shown in fig. 1 and 7, a through hole is provided in the casing edge (9) at the lower end of the casing (7), and the needle tube holder (17) and the casing (7) are connected and fixed by a bolt and nut assembly (14) through the through hole.

The shape and function of the protective cap (13). The shape of the protective cap (13) is as shown in fig. 2-7 and 9, the side wall of the protective cap (13) is wedge-shaped and flaring-shaped, and the inner side wall of the protective cap is tightly matched with the outer side of the needle tube seat; an arc boss is arranged on the inner side wall of the opening of the protective cap (13), and the inner side of the protective cap (8) is connected with the outer side of the needle tube seat (7) in a clamping mode of boss and groove. When the transplanter is not used at ordinary times, the protective cap (13) can be tightly covered on the side wall of the needle tube seat (7) to protect the tip parts of the needle tubes (18) and prevent the tip parts of the needle tubes (18) from colliding and being damaged or being accidentally injured.

As shown in fig. 2-7, the length of each needle core is respectively adapted to the corresponding needle tube by the comprehensive design, especially the length of the spring (12), the needle core (16), the needle tube (18) and other parts, the distance between the lug boss (8) and the top end of the shell (7) and other dimensions, and the length of each needle core (16) is ensured to be slightly above the groove of the needle tube (18) when the pressing key is not pressed in the standby state of the device, and the head of each needle core (16) is ensured to be slightly above the groove of the needle tube (18), as shown in fig. 2-7 and 11; when the pressing key (15) is pressed, the pressing key (15) compresses the spring (12) and simultaneously drives the plurality of needle cores (16) to move in the corresponding needle tubes (18), the plurality of needle cores (16) respectively push hair follicles placed at the groove parts of the corresponding needle tubes (18) to move towards the tip parts of the needle tubes (18), and when the pressing key (15) touches the bosses in the shell (7), the needle cores (16) move to the tip parts of the needle tubes (18), so that a plurality of hairs in a receiving area can be implanted. In the pressing process, the spring (12) plays a role in adjusting pressure, the boss (8) prevents the key from being pressed to exceed the pressing amount, and the function of limiting the ejection length of the needle core (16) is achieved.

In fig. 2 to 7, the mounting axes of a plurality of needle cores (16) on the bottom surface of the pressing key (15), the mounting axes of the needle tubes (18) on the needle tube bases (17), and the axes of the through holes at the upper ends of the needle tubes (18) on the needle tube bases (17) are all in one-to-one correspondence, and certain coaxiality needs to be ensured.

The novel device can have various lengths and diameters. The number of the plurality of needle cores (16) and the plurality of needle tubes (18) may be 2 to n. The diameter of the needle tube (18) is 0.6 mm-1.2 mm. The number of the needle cores (16) and the needle tubes (18) can be increased according to requirements, and parts such as the pressing key (15), the needle tube seat (17), the shell (7) and the like are adaptively adjusted, so that various models are formed. FIG. 13 is a cross-sectional view of an embodiment of a needle cannula assembly (11) comprising 26 needle cannula (18) arranged in a trapezoidal array, a hair transplantation device comprising the needle cannula assembly for simultaneously implanting 26 hairs in different recipient areas with a single compression during a procedure.

The pressing key (15), the needle tube seat (17), the shell (7) and the protective cap (13) can be made of any one of medical plastics, steel, silica gel, titanium alloy and other materials. The needle core (16) and the needle tube (18) can be made of any one of medical steel, titanium alloy and other materials. The spring (12) is made of common metal materials.

The operation and use will be described with reference to fig. 2 to 7. In the hair transplantation operation process, an operation matching table nurse holds the lower part of the shell of the surgical instrument by a left hand, so that a sharp needle point surface groove of a needle tube (18) faces the sight of the operator, a right hand-held hair transplantation micro forceps holds a hair shaft at a position which is about 2-5 mm away from a hair follicle, the hair shaft is clamped into a sharp groove of the needle tube (18), the hair shaft is pressed downwards by proper force to be supported towards the upper part of the center of the groove of the needle tube (18), so that the hair follicle is completely and smoothly slid into the groove of the needle tube (18), namely, the hair follicle is placed into the groove of the needle tube (18), the actions are repeated, the hair follicle is arranged in all grooves on the tips of the needle tubes (18) extending out of the lower end of a needle tube seat (17), after the arrangement is finished, an operator can reserve, in the hair transplantation operation processes of eyebrows, corners, beards, body hairs and the like, the surgical instrument is held by a right hand of the operator, a plurality of needle tubes (18, promote many pieces of nooks (16), spring (8) pressurized moderate degree compression, press key (15) and drive nook (16) and move in needle tubing (18), promote needle tubing (18) point portion many strains hair follicle accuracy and transplant in the accepting region, pull out needle tubing (18), do quiet accurate accomplish once press fast, implant different accepting region many strains hair simultaneously, and can make brow shape, beard, kneecap angle, body hair shaping fast as required, simple accurate safe and reliable is swift, makes things convenient for the high-speed high-quality work of doctor nurse.

Claims (10)

1. A special multi-strain hair transplanter for eyebrows, beards, patella and body hairs is characterized in that: the needle tube component is formed by embedding and fixing a plurality of needle tubes in a needle tube seat, the pressing key component is formed by embedding and fixing a plurality of needle cores in the pressing key, a needle tube seat contained in the needle tube component is connected with the shell through the bolt component, the side wall of the needle tube seat is tightly matched with the inner side wall of an opening of the protective cap, the protective cap can be tightly covered on the side wall of the needle tube seat, the pressing key component is supported on the needle tube seat through a spring sleeved on part of the needle cores, and the upper end of the pressing key extends out of a hole in the top of the shell.

2. The grafting device of claim 1, wherein: on the needle tube component, the tips of a plurality of needle tubes are sequentially retreated or advanced row by row, so that all the needle tips are positioned in a plane forming a certain acute angle with the longitudinal axis of the instrument; the semi-open groove opening at the tip of each needle tube is outward along the radial direction of the transplanting device; the needle tubes are arranged in a triangular or trapezoidal array and are embedded and fixed in the needle tube seat, and the other ends of the needle tubes penetrate out of the lower end face of the needle tube seat for a certain length to ensure that the open grooves at the tip parts of the needle tubes are all positioned outside the lower end of the needle tube seat; the upper end of the position of the needle tube embedded in the needle tube seat is provided with a through hole, the diameter of the through hole is larger than the diameter of the needle core and smaller than the diameter of the needle tube, and the through hole is connected with the inner cavity of the needle tube and forms a movement channel of the needle core; the bottom surface of the lower end of the needle tube seat is provided with a plurality of needle tubes which penetrate through, and the rest parts are closed; the needle tube seat is provided with a hole for installing a bolt, and the needle tube seat is fixed on the edge of the shell by adopting a bolt and a nut through the hole; the side wall of the needle tube seat is wedge-shaped and necking-shaped, and is provided with an arc-shaped groove which is tightly matched with an arc-shaped boss arranged on the inner side wall of the opening of the protective cap.

3. The grafting device of claim 1, wherein: the plurality of needle cores at the bottom end of the pressing key are arranged in a triangular or trapezoidal array which is the same as the plurality of needle tubes and are in one-to-one correspondence with the positions of the plurality of needle tubes; in the installation state, one ends of the needle cores are fixed on the pressing key, and the other ends of the needle cores penetrate through the through holes on the installation seat according to the one-to-one corresponding relation, penetrate into the cavities of the needle tubes which are arranged in the same triangular or trapezoidal array and can move in the cavities of the needle tubes; the upper end of the pressing key extends out of the shell, and the lower end of the pressing key is arranged in the shell.

4. The grafting device of claim 1, wherein: springs are arranged on partial needle cores according to requirements, and the springs are generally sleeved on the needle cores at the edges, the top ends and the central positions of the triangular and trapezoidal arrays; the spring is arranged between the pressing key and the needle tube seat, one end of the spring is contacted with the pressing key, and the other end of the spring is contacted with the needle tube seat.

5. The grafting device of claim 1, wherein: the center of the top end surface of the shell is provided with a through hole, and the upper end of the pressing key can move in the through hole; a boss is arranged on the inner wall of the shell; the edge of the lower end of the shell is provided with a through hole, and the shell and the needle tube seat are connected and fixed through the through hole by adopting a bolt and a nut.

6. The grafting device of claim 1, wherein: the shape of the side wall of the protective cap is wedge-shaped and flaring-shaped, and the inner side wall of the protective cap is tightly matched with the outer side of the needle tube seat; an arc boss is arranged on the inner side wall of the opening of the protective cap, the inner side of the protective cap is connected with the outer side of the needle tube seat in a clamping mode of boss and groove, and the protective cap can be tightly covered on the side wall of the needle tube seat when the device is not used at ordinary times.

7. The grafting device of claim 1, wherein: under standby state, when not pressing the press key, each needle core head is located each needle tubing recess upper portion, when pressing the press key, presses key compression spring, drives a plurality of needle cores simultaneously and moves in a plurality of needle tubing, when pressing the key and touch the boss of casing inner wall, the needle core moves the sharp position of syringe needle.

8. The grafting device of claim 1, wherein: the number of the needle cores and the needle tubes can be 2-n.

9. The grafting device of claim 1, wherein: the diameters of the needle tubes used were: 0.6 mm-1.2 mm.

10. The grafting device of claim 1, wherein: the pressing key, the mounting seat, the shell and the protective cap can be made of any one of medical plastics, steel, silica gel and titanium alloy; the needle core and the needle tube can be made of any one of medical steel and titanium alloy; the spring material is a commonly used metal material.

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