CN112043409A

CN112043409A - Tumor marking injector

Info

Publication number: CN112043409A
Application number: CN202011064672.0A
Authority: CN
Inventors: 张瑜; 王鹏; 周超锋; 陈亚奇
Original assignee: Henan Hospital Traditional Chinese Medicine Second Affiliated Hospital of Henan University of Traditional Chinese Medicine TCM
Current assignee: Henan Hospital Traditional Chinese Medicine Second Affiliated Hospital of Henan University of Traditional Chinese Medicine TCM
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-12-08
Anticipated expiration: 2040-09-30
Also published as: CN112043409B

Abstract

The invention provides a tumor marker injector, which effectively solves the problems that the existing tumor marker injector has uneven medicine distribution and needs to be punctured for many times to influence the diffusion effect of a marker; the technical scheme for solving the problem is that the device comprises a needle head, wherein a cylindrical block is arranged in the needle head, and a plurality of discharging units are uniformly distributed on the needle head; the discharging unit comprises a plurality of through holes which are arranged along the radial direction of the needle head, a rotating shaft is arranged in each through hole, a helical blade is arranged on each rotating shaft, a gear is fixed on one end of each rotating shaft, a first annular groove is formed in the side wall of the needle head, a gear ring is arranged in each first annular groove, the gear is meshed with the gear ring, and a baffle is arranged on the upper side of each gear ring; the second ring channel has been seted up to first ring channel downside, and the ring gear downside is fixed with an annular section of thick bamboo, and it has the pin to run through on the second ring channel inside wall, and the pin other end stretches into the syringe needle intracavity, and the one end that the syringe needle intracavity was arranged in to the pin is hemispherical, sets up the hole of stepping down that corresponds with the pin on the annular section of thick bamboo, and the hole of stepping down is located the baffle below.

Description

Tumor marking injector

Technical Field

The invention relates to the technical field of medical instruments, in particular to a tumor marking injector.

Background

In the treatment of tumors, the tumors are often labeled with a marker, and then diagnosis is performed according to the result, so as to determine the treatment scheme. Most of tumor marking injectors in the current market are completed by common injectors, but for larger tumors, particularly long-strip-shaped and large-volume tumors on esophagus and intestinal tract, repeated needle insertion and injection are often needed, the specific operation is troublesome, each needle insertion injection point is estimated by visual observation of medical staff, the distance between adjacent needle insertion injection points is different, the amount of medicine injected by each needle insertion injection point is not uniform, finally, the diffusion effects of markers at all places are different, and particularly, the concentrations of the markers at multiple injection points are different. It is known that, under the same conditions, when cells are exposed to different concentrations of a marker, the greater the concentration of the marker, the more the marker is taken up by the cells. So, after a while, with markers and related instruments, even if the general outline of the tumor can be seen, it is still difficult to determine the distribution of tumor cells in the tumor mass and the type of tumor cells.

In addition, repeated puncture and injection can cause pain at the affected part, and some patients can have conflict emotion, so that the examination frequency is reduced, even the examination is rejected, and the tumor treatment is not facilitated.

Disclosure of Invention

Aiming at the situation, the invention provides a tumor marker injector for overcoming the defects of the prior art, and effectively solves the problems that the existing tumor marker injector has uneven medicine distribution and needs multiple times of needle insertion to influence the diffusion effect of a marker.

The technical scheme for solving the problem is that the needle comprises a vertical needle head, a cylindrical block capable of moving up and down along the needle head is arranged in the needle head, the cylindrical block can block the needle head, and a plurality of discharging units are uniformly distributed on the needle head;

the discharging unit comprises a plurality of through holes formed in the radial direction of the needle head, a rotating shaft capable of rotating is arranged in each through hole, a helical blade is arranged on each rotating shaft, a gear is fixed at one end, close to the axis of the needle head, of each rotating shaft, a first annular groove coaxial with the corresponding rotating shaft is formed in the side wall of the needle head, a gear ring is arranged in each first annular groove, the gear is meshed with the gear ring, the gear ring is located on the lower side of the gear, the gear rotating energy drives the gear ring to rotate in each first annular groove, a plurality of baffle plates which correspond to the through holes one by one are arranged on the upper; the first ring channel downside is seted up rather than coaxial second ring channel, the ring gear downside is fixed with rather than coaxial annular section of thick bamboo, the second ring channel is arranged in to an annular section of thick bamboo, an annular section of thick bamboo can rotate along with the ring gear, it has the pin to run through on the second ring channel inside wall, pin one end and the contact of annular section of thick bamboo inner wall, the pin other end stretches into the syringe needle intracavity, the one end that the syringe needle intracavity was arranged in to the pin is hemispherical, set up the hole of stepping down that corresponds with the pin on the annular section of thick bamboo, the hole of stepping down is.

The invention has the advantages of ingenious structure, capability of uniformly dispersing the marker medicine around the needle head under the condition of one-time needle insertion and injection, capability of uniformly dispersing the medicine at each position, contribution to diagnosis, capability of quickly judging the condition and type of tumors, contribution to accurate diagnosis as soon as possible, no need of repeated needle insertion and puncture, reduction of pain of patients, simple operation, strong applicability and easy popularization.

Drawings

FIG. 1 is a front cross-sectional view of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of fig. 1 at B.

Fig. 4 is a schematic cross-sectional view of the first annular groove, the second annular groove, the third annular groove, and the through hole in the present invention.

Fig. 5 is a cross-sectional view taken along line C-C of fig. 1.

Fig. 6 is a cross-sectional view taken along line D-D in fig. 1.

FIG. 7 is a schematic structural view of a part of the present invention.

FIG. 8 is a view showing the state of the cylinder block reaching the tip of the needle in the present invention.

Fig. 9 is an enlarged view of fig. 8 at E.

Detailed Description

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 9, the invention comprises a vertical needle head 1, a cylindrical block 2 capable of moving up and down along the needle head 1 is arranged in the needle head 1, the needle head 1 can be blocked by the cylindrical block 2, and a plurality of discharging units are uniformly distributed on the needle head 1;

the discharging unit comprises a plurality of through holes 3 formed along the radial direction of the needle head 1, a rotating shaft 4 capable of rotating is arranged in each through hole 3, a helical blade is arranged on each rotating shaft 4, a gear 5 is fixed on one end, close to the axis of the needle head 1, of each rotating shaft 4, a first annular groove 6 coaxial with the corresponding rotating shaft is formed in the side wall of the needle head 1, a gear ring 7 is arranged in each first annular groove 6, the gear 5 is meshed with the gear ring 7, the gear ring 7 is located on the lower side of the gear 5, the gear rings 7 can be driven to rotate in the first annular grooves 6 through rotation of the gears 5, a plurality of baffle plates 8 corresponding to the through holes 3 one by one are arranged on the upper sides of; 6 downside of first ring channel is seted up rather than coaxial second annular groove 9, 7 downside of ring gear is fixed with rather than coaxial annular section of thick bamboo 10, second annular groove 9 is arranged in to annular section of thick bamboo 10, annular section of thick bamboo 10 can rotate along with ring gear 7, it has pin 11 to run through on the 9 inside walls of second annular groove, 11 one end of pin and the contact of 10 inner walls of annular section of thick bamboo, the pin 11 other end stretches into 1 intracavity of syringe needle, the one end that 1 intracavity of syringe needle was arranged in to pin 11 is hemispherical, set up the hole 12 of stepping down that corresponds with pin 11 on the annular section of thick bamboo 10, the hole 12 of stepping down is located 8 belows on the.

In an initial state, the baffle 8 is staggered with the corresponding through hole 3, the pin 11 is contacted with the annular cylinder 10, during injection, the cylindrical block 2 slides downwards along the cavity of the needle head 1 under the action of pressure, when the cylindrical block 2 is contacted with the pin 11, the pin 11 clamps the cylindrical block 2 and prevents the cylindrical block from continuously moving downwards, liquid flows out through the through hole 3, at the moment, the rotating shaft 4 drives the gear 5 to rotate under the action of the helical blades, the gears 5 rotate to drive the gear ring 7 and the annular cylinder 10 to rotate, when the baffle 8 rotates along with the gear ring 7 and blocks the corresponding through hole 3, the abdicating hole 12 is just at the position of the pin 11, the cylindrical block 2 forces the pin 11 to move towards the abdicating hole 12 under the action of pressure, and after the pin 11 is positioned in the abdicating hole 12, the annular cylinder 10 is also fixed and does not rotate, so that the through hole 3 is blocked by; the cylinder block 2 continues to move downwards and the cylinder block 2 then moves to the pin 11 in the next discharge unit where the liquid is released and the same action as described above is performed.

In order to install the rotating shaft 4, a sleeve 13 is sleeved on one end of the rotating shaft 4 far away from the axis of the needle head 1, and the sleeve 13 and the side wall of the through hole 3 are fixed together through a plurality of fixing rods 14.

In order to ensure the blocking effect of the baffle plate 8, a third annular groove 15 is formed above the first annular groove 6 and is arranged in the third annular groove 15, and the baffle plate 8 is tightly matched with the inner side wall of the third annular groove 15 and can block the corresponding through hole 3.

In order to realize that the tip of the needle head 1 can also discharge materials, the center of the cylindrical block 2 is provided with a vertical hole 16 which is penetrated up and down, the upper end of the cylindrical block 2 is covered with a circular plate 17, the lower end of the circular plate 17 is fixedly provided with a plurality of vertical sliding rods 18, the lower ends of the sliding rods 18 penetrate through the cylindrical block 2, the sliding rods 18 can vertically slide on the cylindrical block 2, an annular plate 19 is arranged below the cylindrical block 2, a gap is arranged between the annular plate 19 and the cylindrical block 2, and the lower ends of the sliding rods 18 are fixed with the annular; a first annular bulge 20 is arranged in the lower end cavity of the needle head 1; in the initial state, the circular plate 17 is closely attached to the upper end face of the cylindrical block 2 and seals the vertical hole 16, when the cylindrical block 2 moves to the lower end of the needle 1, the lower part of the annular plate 19 is blocked by the first annular bulge 20, the annular plate 19 is attached to the lower end face of the cylindrical block 2, at the moment, a gap is formed between the circular plate 17 and the cylindrical block 2, and liquid can flow downwards through the vertical hole 16 and finally flows out from the tip of the needle 1.

In order to ensure that the gears 5 can push the gear ring 7 to rotate, reduce the rotation resistance of the gear ring 7 and reduce the height of the cylinder in the vertical direction as much as possible, the upper end of the cylindrical block 2 is provided with a second annular bulge 21, the second annular bulge 21 is tightly matched with the inner side wall of the cavity of the needle head 1 to block the needle head 1, and when the pin 11 blocks the annular bulge, the cylindrical block 2 cannot continuously move downwards.

The cylindrical block 2 and the circular plate 17 are made of magnetic materials, a rubber layer is adhered to the lower end of the circular plate 17, and the circular plate 17 and the cylindrical block 2 can be mutually adhered to block the vertical hole 16 under the condition of no external force.

In order to ensure that the circular plate 17 can seal the vertical hole 16 on the cylindrical block 2, the cylindrical block 2 is made of iron materials, the circular plate 17 is made of magnets, a rubber layer is adhered to the lower end of the circular plate 17, and the circular plate 17 can seal the vertical hole 16 under the condition that no external force exists.

It is worth noting that the abdicating hole 12 on the annular cylinder 10 can be opened to be larger, so that the pin 11 can enter the abdicating hole 12 as soon as possible while the through hole 3 is blocked, the cylindrical block 2 can move downwards smoothly, and the blockage during injection is reduced; the gear 5 is positioned in the through hole 3, in order to not influence the through-flow state of the through hole 3, the diameter of the gear 5 is smaller than that of the through hole 3, and if necessary, the gear 5 can also adopt a hollow-out process to increase the through-flow area of the through hole 3; the needle head 1 structure of the invention can also be used as a puncture needle.

The outer circular surface of the cylindrical block 2 in the device can also be set to be a cone shape with the diameter of the lower end smaller than that of the upper end, but it is worth considering that if the outer circular surface of the cylindrical block 2 is in a cone shape, the transverse pressure applied to the pin 11 by the cylindrical block 2 forces the pin 11 to press the annular cylinder 10, so that the resistance of the rotation of the gear ring 7 is increased and is not compensated, so that the second annular bulge 21 is arranged on the outer edge of the upper end of the cylindrical block 2, the pressure applied to the annular cylinder 10 by the pin 11 is expected, and the resistance of the rotation of the gear ring 7 is further reduced.

In order to reduce the resistance to the rotation of the ring gear 7, in addition to the above method, the number of the pins 11 can be reduced, but the stress balance of the cylindrical block 2 is also considered, so that the cylindrical block 2 can slide down smoothly from beginning to end and cannot tilt.

In the initial state, the cylindrical block 2 is positioned at the uppermost part in the cavity of the needle head 1, the baffle plate 8 and the through hole 3 are in a dislocation state, the through hole 3 is in an unblocked state, when the syringe is used, the needle head 1 is penetrated into a diseased part until the diseased part reaches a proper position, then a marker is injected inwards, the cylindrical block 2 is forced to move downwards by pressure, the circular plate 17 is tightly attached to the upper end of the cylindrical block 2 under the action of the pressure, the cylindrical block 2 moves downwards under the action of the pressure, when the second annular bulge 21 on the cylindrical block 2 touches the pin 11, the pin 11 clamps the second annular bulge 21 so that the cylindrical block 2 can not move downwards continuously, at the moment, the marker liquid is released outwards through the plurality of through holes 3 at the periphery, when the liquid passes through the through hole 3, the spiral blade drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the gear 5 on the rotating shaft, the gear 5 rotates the, the gear ring 7 rotates to drive the baffle 8 and the annular cylinder 10 to rotate, after a certain amount of liquid flows through the through hole 3, the through hole 3 is completely blocked by the baffle 8, meanwhile, the abdicating hole 12 also moves to the position of the pin 11 along with the annular cylinder 10, at the moment, the pin 11 is pushed towards the abdicating hole 12 by the cylindrical block 2 under the action of pressure, and the cylindrical block 2 can smoothly move downwards to inject the next discharging unit.

When the cylindrical block 2 reaches the lower end of the needle 1, the annular plate 19 abuts against the second annular bulge 21, the annular plate 19 does not move downwards any more, the circular plate 17 does not move downwards any more, the cylindrical block 2 continues to move downwards under the action of pressure until the lower end face of the cylindrical block 2 is in contact with the annular plate 19, a gap is formed between the circular plate 17 and the cylindrical block 2, and liquid can move downwards through the gap and the vertical hole 16 and finally flows out of the tip end of the needle 1.

The invention has the outstanding advantages and remarkable progress that:

1. if the tumour piece is longer in the depth direction, prior art when the injection marker, can impale downwards many times usually, puncture once and just pause once and then inject every time downwards, also have from bottom to top order, once only prick to suitable degree of depth promptly, then take out one section and just pause the injection once, realize after many times to the different degree of depth injection marker, to the tumour piece on top layer, carry out many times and prick the needle injection, both types of mode can all produce great pain to the patient. But the invention can release the marker liquid at intervals, perform one-time needle insertion, and then realize uniform sectional injection by pressing the push rod of the injector, thereby not only reducing the times of needle insertion, but also having simple operation and reducing the pain of patients.

2. According to the invention, the gear rings 7 are controlled to rotate by the gears 5 together, so that smooth rotation of the gear rings 7 can be realized, the consistent dosage released in the through holes 3 in the same discharging unit can be realized, the consistent dosage released by a plurality of discharging units can be realized, and the uniform diffusion of markers is facilitated.

3. Based on practical operation, the tip can be closed, when the size or the length of the tumor is not enough to accommodate the whole needle head 1, the needle head 1 can be directly penetrated into the whole tumor block, and during injection, the medicine can be uniformly distributed at each discharging unit, so that the marker can be uniformly diffused.

Claims

1. A tumor marking injector is characterized by comprising a vertical needle head (1), wherein a cylindrical block (2) capable of moving up and down along the needle head (1) is arranged in the needle head (1), the cylindrical block (2) can block the needle head (1), and a plurality of discharging units are uniformly distributed on the needle head (1);

the discharging unit comprises a plurality of through holes (3) which are radially formed along the needle head (1), a rotating shaft (4) capable of rotating is arranged in the through hole (3), helical blades are arranged on the rotating shaft (4), one end, close to the axis of the needle head (1), of the rotating shaft (4) is fixedly provided with a gear (5), a first annular groove (6) coaxial with the needle head (1) is formed in the side wall of the needle head (1), a gear ring (7) is arranged in the first annular groove (6), the gear (5) is meshed with the gear ring (7), the gear ring (7) is positioned on the lower side of the gear (5), the plurality of gears (5) can drive the gear ring (7) to rotate in the first annular groove (6) in a rotating mode, a plurality of baffle plates (8) corresponding to the through holes (3) one to one are arranged on the upper side of the gear ring (7; first ring channel (6) downside is seted up rather than coaxial second ring channel (9), ring gear (7) downside has and is fixed with rather than coaxial annular section of thick bamboo (10), second ring channel (9) are arranged in annular section of thick bamboo (10), annular section of thick bamboo (10) can rotate along with ring gear (7), it has pin (11) to run through on second ring channel (9) inside wall, pin (11) one end and the contact of annular section of thick bamboo (10) inner wall, pin (11) other end stretches into syringe needle (1) intracavity, the one end that syringe needle (1) intracavity was arranged in to pin (11) is hemispherical, set up hole of stepping down (12) that correspond with pin (11) on annular section of thick bamboo (1) (0), hole of stepping down (12) are located baffle (8) below.

2. The tumor marking syringe as claimed in claim 2, wherein, for mounting the rotating shaft (4), a sleeve (13) is sleeved on one end of the rotating shaft (4) far away from the axis of the needle (1), and the sleeve (13) and the side wall of the through hole (3) are fixed together through a plurality of fixing rods (14).

3. The tumor marker syringe according to claim 1, wherein a third annular groove (15) is formed above the first annular groove (6) and is disposed in the third annular groove (15), and the baffle (8) is tightly fitted with the inner side wall of the third annular groove (15) and can seal the corresponding through hole (3).

4. The tumor marking syringe as claimed in claim 1, wherein a vertical hole (116) is formed in the center of the cylindrical block (2) and penetrates up and down, a circular plate (17) covers the upper end of the cylindrical block (12), a plurality of vertical sliding rods (18) are fixed to the lower end of the circular plate (17), the lower ends of the sliding rods (18) penetrate through the cylindrical block (2), the sliding rods (18) can vertically slide on the cylindrical block (2), an annular plate (19) is arranged below the cylindrical block (2), a gap is formed between the annular plate (19) and the cylindrical block (2), and the lower ends of the sliding rods (18) are fixed to the annular plate (19); a first annular bulge (20) is arranged in the lower end cavity of the needle head (1); in an initial state, the circular plate (17) is tightly attached to the upper end face of the cylindrical block (2) and blocks the vertical hole (16), when the cylindrical block (2) moves to the lower end of the needle head (1), the lower portion of the annular plate (19) is blocked by the first annular protrusion (20), the annular plate (19) is attached to the lower end face of the cylindrical block (2), at the moment, a gap is formed between the circular plate (17) and the cylindrical block (2), and liquid can flow downwards through the vertical hole (16) and finally flows out from the tip of the needle head (1).

5. The tumor marker syringe as claimed in claim 1, wherein the cylindrical block (2) has a second annular protrusion (21) at the upper end, the second annular protrusion (21) is tightly fitted with the inner wall of the cavity of the needle (1) to make the needle (1) blocked, and when the pin (11) is caught by the annular protrusion, the cylindrical block (2) cannot move downwards any more.