CN111195140A - Novel medical hair transplanter - Google Patents

Abstract

A novel medical hair transplantation surgical instrument belongs to the technical field of medical instruments. In order to overcome the defect that only one hair can be planted in one operation of the existing medical hair transplantation instrument, the invention is provided with a pressing key, a plurality of sets of hair transplantation device components, a chuck, a shell and a protective cap, wherein the plurality of sets of hair transplantation device components are controlled by one pressing key. The invention can be used for patients needing hair transplantation operation treatment clinically. During operation, a nurse loads the hair to be transplanted on each set of hair transplanter components for standby, and a doctor can implant a plurality of hairs in different operation areas simultaneously by pressing the pressing key once. By using the invention, the surgical field of the surgical area is clearly distinguished during operation, the defects of uneven stress and mutual extrusion of soft tissues can be avoided, the surgical bleeding infection probability can be obviously reduced, tissue wounds are reduced, no trace is left after healing, the risk of surgical complications is obviously reduced, the operation time can be obviously shortened, the survival rate of hair is greatly improved, and a large amount of manpower and material resources are saved.

Description

Novel medical hair transplanter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel medical hair transplantation surgical instrument.

Background

At present, the existing medical hair transplantation instruments comprise an implantation needle, an implantation pen and the like. 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 pre-filled with 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 transplanting pen for many times, a single hair plant is repeatedly placed into the transplanting pen for many times, a doctor repeatedly operates and replaces the transplanting pen for many times, and the working efficiency is also low. Whether the needle or the pen is transplanted, the operation is frequently carried out by doctors and nurses for a plurality of times (such as operations of patients with large-area alopecia, hair loss and hair loss, repeated actions of 8000-1 ten thousand times are needed, and the operation time can reach 16 hours at most), the repeated operation actions are transplanted in a receiving area, the tissue damage is aggravated, the pain of the patients is increased, the operation infection risk is increased, and the risk of operation complications is increased. 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 defect that only one hair can be planted by one operation action of the conventional medical hair transplantation instrument, the invention provides a novel medical hair transplantation operation transplantation instrument, which can implant a plurality of hairs required by different operation areas by one operation action, can implant 2-70 hairs or more hairs simultaneously and is convenient to operate. The invention can be used for patients needing hair transplantation operation treatment clinically. When the instrument is used for operation, the operation field is clearly distinguished, the defects of uneven stress and mutual extrusion of soft tissues can be avoided, the operation bleeding infection probability can be obviously reduced, tissue wounds are reduced, no trace exists after healing, the risk 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.

The invention solves the technical problem, and adopts the technical scheme that: the hair transplanter comprises a press key, a plurality of sets of hair transplanter components, a chuck, a shell and a protective cap, wherein a single set of hair transplanter component comprises a needle core seat, a needle core, a spring, a height limiting column, a needle tube seat and a needle tube, the shell comprises a shell cover, an upper shell and a lower shell, the hair transplanter component is connected with the chuck in a thread or mortise and tenon mode, the upper end of the hair transplanter component is connected with the lower end of the press key in a mortise and tenon mode, the plurality of sets of hair transplanter components are controlled by one press key, the upper end of the press key extends out of a hole in the top of the shell, the lower end of the press key is arranged in the shell, the chuck is connected with the shell in a thread or mortise and tenon mode, the outer side wall of the lower end of.

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. One end of the needle tube is embedded and fixed at the axle center of the lower end of the needle tube seat with a certain depth, and the other end penetrates out of the through hole of the bottom end surface of the shell with a certain length, so that the open groove at the tip part of the needle tube is completely positioned outside the lower shell, and hair follicles for transplantation are conveniently placed in the groove. The upper end of the position of the needle tube seat for embedding the needle tube 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 lower end of the needle tube seat is arranged in a circular truncated cone shape at the installation position of the needle tube, and the functions of protecting and fixing the position of the needle tube are achieved. Except that the needle tube penetrates out of the bottom surface of the lower end of the needle tube seat, the rest part is closed, so that blood is prevented from entering the shell during operation. The side surface of the needle tube seat is provided with a thread or a buckle and other structures. The needle tube seat is fixed on the chuck in a thread or a buckle or mortise and tenon mode and the like. The top surface of the needle tube seat is provided with a straight groove which is convenient for being installed by tools such as a screwdriver and the like. The needle core is embedded and fixed at the bottom end axis of the needle core seat. The upper end of the needle core seat is inserted and clamped in the groove at the bottom end of the pressing key in a mortise and tenon mode and is controlled by the pressing key. The axial center of the height-limiting column is provided with a through hole which is a channel for the movement of the needle core. The height-limiting column can be arranged inside or outside the spring and has the function of limiting the deformation of the spring and controlling the movement distance of the needle core in the needle tube. The spring and the height-limiting column are arranged between the needle core seat and the needle tube seat and are sleeved on the needle core. One end of the spring is contacted with the needle core seat, and the other end of the spring is contacted with a needle tube seat fixed on the chuck, so that the effects of supporting the needle core seat and buffering the pressing force are achieved. In the installation state, the other end of the needle core passes through the spring cavity, the central hole of the height-limiting column, the through hole on the needle tube seat and the needle tube cavity and can move in the needle tube cavity. The multiple sets of hair transplanter components are the same in design and structure, and after the multiple sets of hair transplanter components are installed, the needle points of the multiple needle tubes are in the same plane.

The chuck is provided with mounting holes arranged in a circular array, a rectangular array or other arrays for mounting and fixing a plurality of needle tube seats. The inner wall of the mounting hole is provided with a thread or a buckle structure and the like so as to mount and fix the needle tube seat. The number of the mounting holes is consistent with the number of sets of the plurality of sets of hair transplanter components. The multiple sets of hair transplanting device components correspond to the mounting holes on the chuck one by one, and are mounted in the mounting holes on the chuck in a thread, buckle or mortise and tenon mode through the needle tube seat. The chuck is connected with the lower shell in a threaded or mortise-tenon insertion mode, and the connecting position is arranged on the inner side of the upper end opening position of the lower shell and below the connecting position of the upper shell and the lower shell.

For facilitating the installation and the disassembly of the internal mechanism, the shell is divided into a shell cover, an upper shell and a lower shell, and the shell plays the roles of connecting, supporting and protecting the internal mechanism. The top end surface of the shell cover is provided with a through hole which is a moving channel at the upper end of the pressing key. The connection mode of the upper shell, the shell cover and the lower shell can be threaded connection or buckling connection and the like. The lower shell is provided with a connecting position with the upper shell and a fixed mounting position of the chuck inside the opening position of the lower shell, and the lower shell can be connected with the upper shell and the chuck in a threaded or buckled or mortise and tenon mode. The lower periphery of the lower part of the side wall of the lower end of the lower shell is gradually reduced along the downward direction, and the shape of the lower shell is wedge-shaped, so that the protective cap can be conveniently covered tightly. The bottom end face of the lower shell is provided with through holes which are arranged according to a certain array and matched with the plurality of needle tubes in the shell, the diameter of each through hole is slightly larger than the diameter of each needle tube, so that the plurality of needle tubes can conveniently penetrate out of the through holes, the needle tubes can be fixed and limited, and excessive blood can be prevented from entering the shell during operation.

The upper end of the pressing key extends out of the hole on the top of the upper shell, and the lower end of the pressing key is arranged in the shell and is used for bearing and transmitting pressing force during hair transplantation operation. The bottom of the lower end face of the pressing key is provided with a plurality of grooves which are arranged in a circular or other array shape, and in the installation state, the positions of the grooves correspond to the upper ends of the plurality of needle core seats one by one and are used for limiting and connecting the needle core seats.

The side wall of the protective cap is also wedge-shaped and flared, and is tightly matched with the side wall of the lower shell so as to tightly cover the protective cap, so that when the transplantation needle is not used at ordinary times, the needle tips of the needle tubes are protected, and the needle tips of the needle tubes are prevented from being collided and damaged or being accidentally injured.

Through the integrated design, especially, the spring, the limit for height post, the nook closing member, spare parts such as needle core, needle tubing height, size cooperation design such as length, under standby state, when not pressing the press key, the head of each nook closing member is located each needle tubing recess upper portion just, when pressing the press key, press the key and drive the nook closing member seat and press the spring, drive the nook closing member simultaneously and move in the needle tubing, the nook closing member promotes the hair follicle that sharp recess position of needle tubing placed to the needle tubing point motion, when the movement of limit for height post was obstructed in the contact of nook closing member seat, the nook closing member head just moved the needle point position of needle tubing in the needle tubing, thereby realize the function that puts in place with the. In the pressing process, the spring plays a role in adjusting the pressure, the height limiting column prevents the downward pressing excess of the pressing key, the spring is limited to deform, 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 point portion 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 the art 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 art district, extract the needle tube point, and the action is accomplished.

The invention has the advantages that a plurality of sets of hair transplanting device assemblies which are arranged according to a certain array are controlled by pressing a key one time, a plurality of hairs in different receiving areas are implanted simultaneously by pressing the key one time, and the invention is simple, accurate, safe, reliable and rapid, and is convenient for doctors and nurses to work at high speed and high quality. Compared with the existing hair transplantation needle with a single needle mode, 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.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a general longitudinal section structural view of a medical hair transplantation surgical instrument, and is a general longitudinal section structural view of a medical hair transplantation surgical instrument exemplified by 4 sets of hair transplantation instrument components.

Fig. 2 is a schematic longitudinal sectional view of a single set of hair transplanter assemblies.

Fig. 3 is an exploded view of a single set of hair transplanter components.

FIG. 4 is an enlarged longitudinal cross-sectional view of the tip portion of the needle cannula taken along the direction of the slit. At different locations on the tip of the needle, four cross-sectional locations A-A, B-B, C-C, D-D are taken radially, which four cross-sections will be shown in FIG. 5.

FIG. 5 is an enlarged view of the radial cross-section of the tip portion of the needle cannula. Wherein the four panels A1, B1, C1 and D1 are cross-sectional views at the four positions A-A, B-B, C-C, D-D in FIG. 4. Fig. 5 illustrates, in conjunction with fig. 4, the configuration and shape of the tip of the needle cannula.

Fig. 6 is a schematic structural view of a cartridge, which is a schematic structural view of a cross-sectional and a longitudinal sectional view of a hair transplanter cartridge, taking four sets of hair transplanter components as an example.

Fig. 7 is a schematic structural view of a pressing key, which is a schematic structural view of a longitudinal section and a bottom surface of the pressing key, taking four sets of hair transplanter components as an example.

Fig. 8 is an exploded view of the housing.

Fig. 9 is a longitudinal sectional view of the housing cap.

Fig. 10 is a cross-sectional view of an assembly cartridge within a hair transplanter, illustrating twenty-four sets of hair transplanter assemblies.

In the figure, 1 is a pressing key, 2 is a hair transplanter component, 3 is a chuck, 4 is a housing, 5 is a protective cap, 6 is a needle core seat, 7 is a needle core, 8 is a spring, 9 is a height limiting column, 10 is a needle tube seat, 11 is a needle tube, 12 is a housing cover, 13 is an upper housing, and 14 is a lower housing.

Detailed Description

The invention has the general structure as shown in figure 1, the novel medical hair transplantation surgical instrument mainly comprises a pressing key (1), a plurality of hair transplantation device assemblies (2), a chuck (3), a shell (4), a protective cap (5) and the like, wherein a single hair transplantation device assembly (2) comprises a needle core seat (6), a needle core (7), a spring (8), a height limiting column (9), a needle tube seat (10) and a needle tube (11), the shell (4) comprises a shell cover (12), an upper shell (13) and a lower shell (14), the hair transplantation device assemblies (2) and the chuck (3) are connected in a thread or mortise and tenon mode, the upper end of the hair transplantation device assembly (2) is connected with the lower end of the pressing key (1) in a mortise and tenon mode, the upper end of the pressing key (1) extends out of a hole at the top of the shell cover (12), the lower end is arranged in the shell, the chuck (3) and the shell (4) are connected in a, the outer side wall of the lower end of the lower shell (14) is tightly matched with the inner side wall of the opening of the protective cap (5), the protective cap (5) can be tightly covered at the lower end of the lower shell (14), and the shell cover (12), the upper shell (13) and the lower shell (14) are connected through threads. As shown in figures 1, 2 and 3, compared with the prior medical implanting needle, the invention has a plurality of sets of hair transplanting device assemblies (2) which are arranged in a circular array or other arrays in a shell (4), and the plurality of sets of hair transplanting device assemblies (2) are controlled by a pressing key (1) in a key mode. When the pressing key (1) is pressed, a plurality of sets of hair transplanting device components (2) act simultaneously, so that the function of transplanting a plurality of hairs simultaneously by one pressing action can be realized. Fig. 1, 6, 7, 8 and the like show an example of the internal structure of a hair transplanter having 4 sets of hair transplanter components (2) therein and the corresponding components of a pressing key (1), a chuck (3), a housing (4) and the like.

The structure of a single set of hair transplanter components. As shown in fig. 4 and 5, the sharp head of the needle tube (11) is provided with an open groove. The needle tube (11) is embedded and fixed at the lower end axis of the needle tube seat (10) with a certain depth, and the other end penetrates out of a through hole at the bottom end surface of the shell (4) with a certain length, so that the open groove at the tip part of the needle tube (11) is completely positioned outside the lower shell (14) to be convenient for placing hair follicles for transplantation into the groove. The upper end of the position where the needle tube (11) is embedded in the needle tube seat (10) is provided with a through hole, the diameter of the through hole is slightly larger than that of the needle core (7) and slightly smaller than that of the needle tube (11), and the through hole is connected with the inner cavity of the needle tube (11) and forms a movement channel of the needle core (7). The lower end of the needle tube seat (10) is arranged in a circular truncated cone shape at the installation position of the needle tube (11) and plays a role in protecting and fixing the position of the needle tube (11). The bottom surface of the lower end of the needle tube seat (10) is penetrated out except the needle tube (11), and the rest part is closed to prevent blood from entering the shell (4) during operation. The side surface of the needle tube seat (10) is provided with a thread or a buckle and other structures. The needle tube seat (10) is fixed on the chuck (3) in a thread or a buckling or mortise and tenon mode and the like. The needle core (7) is embedded and fixed at the bottom end axis of the needle core seat (6). The upper end of the needle core seat (6) is inserted and clamped in the groove at the bottom end of the pressing key (1) in a mortise and tenon mode and is controlled by the pressing key (1). The axis of the height limiting column (9) is provided with a through hole which is a moving channel of the needle core (7). The height limiting column (9) can be arranged inside or outside the spring (8) and has the function of limiting the deformation of the spring (8) and controlling the movement distance of the needle core (7) in the needle tube (11). As shown in figures 1 and 2, the spring (8) and the height-limiting column (9) are arranged between the needle core seat (6) and the needle tube seat (10) and are sleeved on the needle core (7). One end of the spring (8) is contacted with the needle core seat (6), and the other end is contacted with a needle tube seat (10) fixed on the chuck (3) to play the role of supporting the needle core seat (6) and buffering the pressing force. In the installation state, the needle core (7) passes through the inner cavity of the spring (8), the central hole of the height limiting column (9), the through hole on the needle tube seat (10) and the inner cavity of the needle tube (11) and can move in a channel formed by the connection of the through hole on the needle tube seat (10) and the inner cavity of the needle tube (11). The structure of the single set of hair transplanter components is shown in figures 1, 2 and 3. The multiple sets of hair transplanter components (2) have the same design and structure.

The structure of the chuck is shown in fig. 1 and 6. The chuck (3) is provided with mounting holes which are arranged according to a circular array, a rectangular array or other arrays and are used for mounting and fixing a plurality of needle tube seats (10). The inner wall of the mounting hole is provided with a thread or a buckle structure and the like so as to mount and fix the needle tube seat (10). The number of the mounting holes is consistent with the number of sets of the plurality of sets of hair transplanter components (2). The chuck (3) is connected with the lower shell (14) in a threaded or mortise-tenon plugging mode, and the connecting position is arranged on the inner side of the opening position at the upper end of the lower shell (14) and below the connecting position of the upper shell (13) and the lower shell (14). Fig. 1 shows an embodiment in which the chuck (3) and the lower case (14), and the chuck (3) and the needle holder (10) are all connected by screw threads. FIG. 6 shows a chuck (3) provided with 4 mounting holes for needle holder (10), and the chuck (3) shown in FIG. 6 has 4 mounting holes with internal threads.

The hair transplanter component (2) is arranged on the chuck (3). The multiple sets of hair transplanting device components (2) correspond to the mounting holes in the chuck (3) one by one, and are mounted in the mounting holes in the chuck (3) in a threaded or buckling or mortise and tenon mode through the needle tube seat (10). The top surface of the needle tube seat (10) is provided with a straight groove which is convenient for being installed by tools such as a screwdriver and the like. During installation, the open groove openings at the tips of the needle tubes (11) are outward along the radial direction of the transplanting device (taking the middle shaft of the transplanting device as the center), so that the uniform visual field of the grooves is clear when the rotating shell (4) is rotated during operation, and the hair follicles can be conveniently, quickly, safely and accurately placed in the grooves. After being installed, the needle tips of the needle tubes (11) of all the sets of hair transplanter components (2) are in the same plane. Fig. 1 shows an embodiment in which a plurality of sets of hair transplanter components (2) are threadedly mounted on a cartridge (3) via a needle hub (10).

The housing structure is shown in fig. 8. The shell (4) is divided into a shell cover (12), an upper shell (13) and a lower shell (14). The shell (4) plays a role in connecting, supporting, protecting internal mechanisms and the like. The top end face of the shell cover (12) is provided with a through hole, and a movement channel is reserved for pressing the upper end of the key (1). The connection mode of the upper shell (13), the shell cover (12) and the lower shell (14) can be a threaded connection or a snap connection, and fig. 8 is a schematic view of the threaded connection. The connecting position of the lower shell (14) and the upper shell (13) and the fixed mounting position of the chuck (3) are arranged in the opening position of the lower shell (14), the upper shell (13) and the chuck (3) can be connected in a threaded or buckling mode, and the threaded connection is schematically shown in fig. 8. The periphery of the lower part of the side wall of the lower shell (14) is gradually reduced in diameter, and the shape is wedge-shaped and necking-shaped, so that the protective cap (5) can be conveniently covered. The bottom end face of the lower shell (14) is provided with through holes which are arranged according to a certain array and matched with the plurality of needle tubes (11) in the shell, the diameter of each through hole is slightly larger than that of each needle tube (11), so that the plurality of needle tubes (11) can conveniently penetrate out of the through holes, the effects of fixing and limiting the positions of the needle tubes (11) are achieved, and excessive blood is prevented from entering the shell (4) during operation.

The shape and structure of the key (1) are pressed. As shown in fig. 1 and 7, the pressing key (1) is located above the housing (4), has an upper end protruding outside the upper housing (13) and a lower end located inside the housing (4), and receives and transmits a pressing force during a hair transplantation operation. The bottom of the lower end face of the pressing key (1) is provided with a plurality of grooves which are arranged in a circular or other array shape, and the plurality of grooves are in one-to-one correspondence with the upper ends of a plurality of needle core seats (6) of a plurality of sets of hair transplanting device components (2) and are used for limiting and connecting the needle core seats (6).

As shown in fig. 1 and 9, the side wall of the protective cap (5) is also wedge-shaped and flared, and is designed to be tightly fitted with the side wall of the lower case (14) so as to tightly cover the protective cap (5). When the transplantation needle is not used at ordinary times, the protective cap (5) is covered to protect the needle tip parts of the needle tubes (11) and prevent the needle tip parts of the needle tubes (1) from being collided and damaged or being accidentally injured.

The hair transplantation function of the present invention will be described with reference to fig. 1, 2, 4, 5, 7 and the like. Through the size matching design of the height, the length and the like of the spring (8), the height limiting column (9), the needle cores (7), the needle tubes (11) and other parts, in a standby state, when the pressing key (1) is not pressed, the head of each needle core (7) is just positioned at the upper part of the groove of each needle tube (11), when the pressing key (1) is pressed, the pressing key (1) drives the needle core seat (6) to press the spring (8), simultaneously drives the respective needle core (7) to move in the corresponding needle tube (11), the needle cores (7) push hair follicles placed in the pointed groove part of the corresponding needle tube (11) to move to the pointed part of the needle tube (11), when the needle core seat (6) touches the height limiting column (9) and is blocked in movement, the head of each needle core (8) moves to the pointed position of the needle tube (11) in the corresponding needle tube (11), thereby realizing one pressing action and simultaneously pushing a plurality of hair follicles to be in place, the function of implanting different receptor regions. In the pressing process, the spring (8) plays a role in adjusting the pressure, the height limiting column (9) prevents the downward pressing excess of the pressing key (1), the deformation of the spring (8) is limited, the moving distance of the needle core (7) in the needle tube (11) is controlled, and the function of adjusting the ejection length of the needle core (7) is played.

In fig. 1, 2, 3, 6 and 7, a plurality of grooves on the bottom surface of the pressing key (1), the mounting axis of the needle core (7) on each needle core seat (6), the mounting axis of the needle tube (11) on each needle tube seat (10), the axis of each mounting hole on the chuck (3) and the centers of a plurality of through holes on the bottom surface of the lower shell (14) are in one-to-one correspondence, and certain coaxiality needs to be ensured.

The present invention may have various lengths and diameters. The number of sets of hair transplanter components (2) can be increased according to the requirement, and the number of a plurality of sets of hair transplanter components (2) can be 2-n. The diameter of the needle tube (18) is 0.6 mm-1.2 mm. Aiming at the difference of the number of sets of the hair transplanting device components (2), parts such as the supporting disk (5), the needle tube seat (12) and the like are adjusted adaptively, so that various models are formed. Fig. 10 is a cross-sectional view of the cartridge (3) in the hair transplanter, exemplifying 37 sets of hair transplanter assemblies (2), the 37 sets of hair transplanter assemblies (2) being mounted in the hair transplanter in the array shown. The hair transplanter can transplant 37 hairs to different receiving areas simultaneously by pressing once during operation.

The materials of the pressing key (1), the chuck (3), the needle core seat (6), the needle tube seat (10), the height limiting column (9), the shell (4) and the protective cap (5) can be medical plastics, steel, silica gel, titanium alloy and the like. The materials of the needle core (7) and the needle tube (11) can be medical steel, titanium alloy and the like. The spring (2) is made of common metal materials.

The operation is described with reference to fig. 1, fig. 2, fig. 3, fig. 7 and fig. 8. In the hair transplantation operation process, an operation table nurse holds the lower part of a hair transplanter shell by a left hand, so that a sharp needle point surface groove of a needle tube (11) faces the sight of the operator, a right hand-held hair transplantation microscope forceps clamps and 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 (11), the hair shaft is pressed downwards by proper force and is supported towards the upper part of the center of the groove of the needle tube (11), the hair follicle is completely and smoothly slid into the groove of the needle tube (11), namely, the hair follicle is placed into the groove of the needle tube (11), the shell (4) is rotated, the actions are repeated, the hair follicle is arranged in grooves on the tip parts of all the needle tubes (11) extending out of the lower end of the lower shell (14), after the placement is finished, an operator can reserve, in the operation process, the operator holds the hair transplanter (figure 1) by the right hand, a plurality of needle tubes, the multiple needle core seats (6) are pushed, the springs (8) are compressed properly, the needle core seats (6) drive the needle cores (7) to move in the needle tubes (11), multiple hair follicles at the tips of the needle tubes (11) are pushed to be transplanted into a receiving area accurately, the needle tubes (11) are pulled out, and actions of pressing and implanting multiple hairs at one time are completed accurately and rapidly.

Claims (10)

1. A novel medical hair transplanter is characterized in that: the hair transplantation needle assembly comprises a press key, a plurality of sets of hair transplantation needle assemblies, a chuck, a shell and a protective cap, wherein a single set of hair transplantation needle assembly comprises a needle core seat, a needle core, a spring, a height limiting column, a needle tube seat and a needle tube, the shell comprises a shell cover, an upper shell and a lower shell, the hair transplantation needle assembly is connected with the chuck in a thread or mortise and tenon mode, the upper end of the hair transplantation needle assembly is connected with the lower end of the press key in a mortise and tenon mode, the upper end of the press key extends out of a hole in the top of the shell, the lower end of the press key is arranged in the shell, the chuck is connected with the shell in a thread or mortise and tenon mode, the outer side.

2. The grafting device of claim 1, wherein: the upper end of the pressing key extends out of a hole in the top of the upper shell, the lower end of the pressing key is arranged in the shell, a plurality of grooves which are arranged in a circular or other array form are arranged at the bottom of the lower end face of the pressing key, and the positions of the grooves correspond to the upper ends of the plurality of needle core seats one to one in the installation state.

3. The grafting device of claim 1, wherein: the multiple sets of hair transplantation needle assemblies are the same in design and structure, the opening of the open groove at the tip of each needle tube is outward along the radial direction of the transplantation device, the needle points of the multiple needle tubes are in the same plane, one end of each needle tube is embedded and fixed at the axle center of the lower end of the needle tube seat, and the other end of each needle tube penetrates out of the through hole at the bottom end face of the shell by a certain length, so that the open grooves at the tip of each needle tube; the needle tube seat is characterized in that a through hole is arranged at the upper end of the position of the needle tube seat where the needle tube is embedded, the diameter of the through hole is larger than that of a needle core and smaller than that of the needle tube, the through hole is connected with an inner cavity of the needle tube and forms a movement channel of the needle core, the lower end of the needle tube seat is arranged in a round table shape at the installation position of the needle tube, the bottom surface of the lower end of the needle tube seat is provided with a needle tube penetrating out, the rest part of the needle tube seat is closed, the needle tube seat is fixed; the needle core is embedded and fixed at the bottom end axis of the needle core seat, and the upper end of the needle core seat is inserted and tightly clamped in the groove at the bottom end of the pressing key in a mortise and tenon mode; the axial center of the height-limiting column is provided with a through hole which is a channel for the movement of the needle core, the height-limiting column can be arranged inside or outside the spring, and the spring and the height-limiting column are arranged between the needle core seat and the needle tube seat and are sleeved on the needle core; one end of the spring is contacted with the needle core seat, and the other end of the spring is contacted with a needle tube seat fixed on the chuck; in the installation state, the other end of the needle core passes through the spring cavity, the central hole of the height-limiting column, the through hole on the needle tube seat and the needle tube cavity and can move in the needle tube cavity.

4. The grafting device of claim 1, wherein: mounting holes arranged in a circular array, a rectangular array or other arrays are arranged on the chuck, and the inner walls of the mounting holes are provided with threads, buckles or mortise and tenon structures; the number of the mounting holes is consistent with the number of the sets of the hair transplantation needle assemblies; a plurality of sets of hair transplantation needle assemblies correspond to the mounting holes on the chuck one by one and are mounted in the mounting holes on the chuck in a thread, buckle or mortise and tenon mode through the needle tube seat; the chuck is connected with the lower shell in a threaded or mortise-tenon insertion mode, and the connecting position is arranged on the inner side of the upper end opening position of the lower shell and below the connecting position of the upper shell and the lower shell.

5. The grafting device of claim 1, wherein: the top end surface of the shell cover is provided with a through hole which is a moving channel for pressing the upper end of the key; the upper shell, the shell cover and the lower shell can be connected in a threaded connection or a buckling connection mode; the lower shell is provided with a connecting position with the upper shell and a fixed mounting position of the chuck inside the opening position of the lower shell, and the lower shell, the upper shell and the chuck can be connected in a thread or buckle or mortise and tenon mode; the periphery of the lower part of the side wall of the lower end of the lower shell is gradually reduced in diameter, and the shape of the lower part of the side wall of the lower end of the lower shell is wedge-shaped; the bottom end face of the lower shell is provided with through holes which are arranged according to a certain array and matched with the plurality of needle tubes in the shell, the diameter of each through hole is slightly larger than that of each needle tube, and the plurality of needle tubes penetrate out of the through holes.

6. The grafting device of claim 1, wherein: the protective cap side wall is wedge-shaped and flaring-shaped, and is tightly matched with the side wall of the lower shell, and the protective cap can cover the lower end of the shell.

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 the key and drives a plurality of needle core seats and press the spring, drives a plurality of needle cores simultaneously and moves in corresponding needle tubing, when pressing the key and touch the limit for height post, the needle core moves to the needle point position of needle tubing.

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 materials of the pressing key, the chuck, the needle core seat, the needle tube seat, the height limiting column, the shell and the protective cap can be medical plastics, steel, silica gel and titanium alloy; the needle core and the needle tube can be made of medical steel and titanium alloy; the spring is made of a common metal material.

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