CN113797430B - Anorectal surgery drug feeder - Google Patents

Abstract

The invention relates to the technical field of drug delivery devices, in particular to an anorectal surgery drug delivery device, which comprises: a syringe; the administration head is in threaded connection with the injection tube and is provided with an administration hole communicated with the outlet, the administration head is provided with a flexible rubber sleeve, one end of the flexible rubber sleeve is provided with a flat part, and the flat part is provided with a slit at the end far away from the administration head; the expansion moving device is arranged on the outer side of the injection tube and the outside of the drug delivery head and comprises an expansion piece and a moving assembly, wherein the expansion piece is arranged on one end of the moving assembly and is convenient for the drug delivery head to enter by opening the anus, and the moving assembly is connected with the injection tube so as to realize the movement of the injection tube and further realize the entry of the drug delivery head. The invention realizes the function of unidirectional flow by arranging the flat part of the soft rubber sleeve, thereby avoiding backflow, and simultaneously, the anus is propped up by the expanding piece to facilitate the feeding head to enter without a hard plug, thereby improving the comfort level.

Description

Anorectal surgical applicator

Technical field

The present invention relates to the technical field of drug delivery devices, in particular to an anorectal surgery drug delivery device.

Background technique

Anorectal diseases refer to diseases that occur in the anus and large intestine. There are many corresponding treatment methods, among which the most rapid and efficient one is anorectal medication. At the same time, anorectal administration is achieved through a drug applicator. The principle is to deliver the drug into the intestine through the anus, and quickly absorb it into the general circulation through the rectal mucosa, so that the drug can exert its effect to treat systemic or local diseases.

For example, the patent number is 2020217198684, and the patent name is an anorectal surgical drug delivery device, which is a relatively common drug delivery device. Although the patent allows the replacement of the drug delivery head to avoid infection, the patent is hard to put into the human body as usual. There are many plugs, so people will feel uncomfortable when they are plugged in. Secondly, medicines are also liquid, so there will be reflux.

Contents of the invention

The object of the present invention is to provide an anorectal surgical applicator, which is provided with a flat part of a soft rubber sleeve to achieve a one-way flow function, thereby avoiding backflow, and at the same time, an expansion piece is used to open the anus to facilitate the entry of the drug tip. There is no need for hard plugs to improve comfort, thus solving the problems of hard plugs and liquid backflow.

The purpose of the present invention is achieved as follows:

An anorectal surgical applicator, including:

An injection tube has an outlet at one end, and a piston rod is movable at the other end. The medicine is placed between the piston rod and the injection tube, and the medicine is pushed out of the outlet by pushing the piston rod;

The drug administration head is threadedly connected to the injection tube and has a drug administration hole connected to the outlet. The drug administration head cover is provided with a soft rubber sleeve, and one end of the soft rubber sleeve is provided with a flat part, and the flat part is located away from the drug administration head. There is a slit at this end of the head;

The expansion moving device is arranged outside the injection tube and the administration head, and includes an expansion member and a moving component. The expansion member is provided at one end of the moving component and facilitates the entry of the administration head by opening the anus, and the moving component is connected to the injection tube. The connection enables the movement of the syringe and the entry of the dosing head.

Preferably, the moving component includes a fixed part, and the enlarged part is provided at one end of the fixed part, the dosing head and the syringe tube are movablely installed on the fixed part, and a device for limiting the movement of the syringe is provided between the fixed part and the syringe tube. limit component.

Preferably, the fixing member includes a fixed plate 1 and a fixed plate 2, and a movable movable plate is provided between the fixed plate 1 and the fixed plate 2, the movable plate is provided with a mounting hole, and the movable plate and the fixed plate 1 are Or/there is a limiting component for limiting the movement of the movable plate between the second fixed plate and the second fixed plate;

The injection tube includes a mounting part, the injection tube passes through the mounting hole, and the mounting part is clamped with the moving plate.

Preferably, the limiting component includes a strip hole 1 and a strip groove respectively opened on the fixing plate one and the fixing plate two, and the fixing plate two has several limit holes 1 on one side of the strip groove;

A limit rod and a moving rod are respectively provided on both sides of the moving plate, and the moving rod moves in the strip hole. One end of the limit rod is located in the limiting hole to limit the position, and moves by pulling outwards. The rod thereby makes this end of the limit rod leave the limit hole and be located in the strip groove to move.

Preferably, the limiting assembly includes a strip hole two and a strip hole three respectively opened on the fixing plate one and the fixing plate two, and the side walls of the strip hole two and the strip hole three are respectively provided with several limiters. Hole two and limit hole three;

The moving plate is provided with a limit rod 2, and the two ends of the limit rod 2 are respectively located in the limit hole 2 and the limit hole 3 for limiting, and move the limit rod 2 away from the limit hole 2 and the limit hole three are located in the strip hole two and the strip hole three and then move.

Preferably, the fixing member is a shell, and the dosing head and the syringe are movably installed in the shell. The shell is provided with a hole for observation and easy movement of the syringe, and a hole for limiting the injection is provided between the casing and the syringe. Limiting component for tube movement.

Preferably, the limiting assembly includes a limiting rod 3 connected to the injection tube, and the injection tube is provided with limiting holes 4, and the shell is provided with several limiting holes 5 on one side of the hole, and the limiting rods 3 are passed through in sequence. Pass through the limit hole five and the limit hole four to limit the position;

Alternatively, the limiting assembly includes a limiting rod 4 that is rotated on the injection tube, and the shell is provided with a plurality of limiting holes 6 on one side of the hole, and the limiting rod 4 passes through the limiting holes 6 to limit the position.

Preferably, groove rails 1 and 2 are respectively provided on both sides of the injection tube and the drug delivery head, and the fixing member is provided with convex strips 1 and 2 corresponding to the groove rails 1 and 2, respectively.

Preferably, the expansion piece is hingedly provided at one end of the moving component, and the expansion piece includes an expansion part and a pressing part, and the expansion part and the pressing part are respectively located on both sides of the hinge joint between the expansion part and the moving component, and the pressing part is pressed. The spreader part is everted;

Alternatively, the expansion member is an air bag, and the air bag is sleeved on one end of the moving component, and an input tube is provided at one end of the air bag. Air is supplied to the air bag through the input tube to expand the air bag and expand the anus.

Preferably, the piston rod includes a push rod and a sealing rod, and the sealing rod is located on the push rod, and the peripheral sides of the sealing rod and the push rod form two sets of sliding sealing surfaces with the inner wall of the injection tube, thereby achieving double sealing.

Compared with the existing technology, the outstanding and beneficial technical effects of the present invention are:

1. The present invention realizes the function of one-way flow through the flat part of the soft rubber sleeve, thereby avoiding backflow. At the same time, the expansion piece is used to open the anus to facilitate the entry of the drug delivery head without the need for a hard plug, thereby improving comfort.

Moreover, the dosing head and the injection tube are threaded to facilitate the replacement of the dosing head. At the same time, the setting of the moving component has a guiding effect on the movement of the drug delivery head and the injection tube, thereby ensuring that the drug delivery head and the injection tube enter straight without tilting left and right.

2. In the present invention, the dosing head and the syringe tube are moved and arranged on the fixed part, thereby realizing the connection between the two ends, thereby ensuring that the dosing head and the syringe tube enter straight without flipping up and down due to the movement of only one component. Case.

3. Through the setting of the limit hole, the present invention can not only limit the position, but also be used to record the depth of entry of the medicine nozzle.

4. The present invention achieves double sealing through the arrangement of the sealing rod, and due to the double sealing, its moving speed will be slower under the same force, so that the medicine can enter slowly and give people a better experience.

Description of the drawings

Figure 1 is a schematic structural diagram of structure 1 of the present invention.

Figure 2 is a cross-sectional structural schematic diagram of the structure of the present invention.

Figure 3 is a schematic structural diagram of the second fixing plate corresponding to the first structure of the present invention.

FIG. 4 is a schematic structural diagram of the moving plate corresponding to Structure 1 of the present invention.

Figure 5 is a schematic structural diagram of the second fixing plate corresponding to the second structure of the present invention.

Fig. 6 is a schematic structural diagram of the moving plate corresponding to the second structure of the present invention.

Figure 7 is a schematic structural diagram of three cross-sections of the structure of the present invention.

Figure 8 is a schematic structural diagram of the soft rubber sleeve.

Figure 9 is a schematic structural diagram of structure four of the present invention.

Figure 10 is one of the four cross-sectional structural schematic diagrams of the structure of the present invention.

Figure 11 is the second structural schematic diagram of four cross-sections of the structure of the present invention.

Figure 12 is a schematic structural diagram of an injection tube corresponding to Structure 4 of the present invention.

Figure 13 is a schematic structural diagram of an injection tube corresponding to Structure 5 of the present invention.

Figure 14 is a schematic structural diagram of the injection tube.

Reference signs: 1-injection tube; 11-outlet; 12-piston rod; 14-installation part; 122-push rod;

123-Sealing rod; 13-Limiting hole four; 2-Dosing head; 21-Dosing hole; 3-Soft rubber sleeve; 31-Flat part;

4-Mobile component; 41-Fixed plate one; 411-Strip hole one; 42-Fixed plate two; 421-Strip groove;

422-limiting hole one; 423-bar hole three; 424-limiting hole three; 43-moving plate; 431-limiting rod one;

432-moving rod; 433-limit rod two; 434-mounting hole; 435-slot rail three; 44-casing;

441-hole; 442-limiting hole five; 45-convex strip one; 46-convex strip two; 51-limiting rod three;

52-limiting rod four; 6-expansion piece; 61-expanding part; 62-pressing part; 63-input tube.

Detailed ways

The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Example 1:

As shown in Figures 1 to 14, an anorectal surgical drug delivery device includes: a syringe tube 1, a drug delivery head 2 and an expansion moving device, in which an outlet 11 is provided at one end of the syringe tube 1, and the other end of the syringe tube 1 is movable. There is a piston rod 12, and medicine is placed between the piston rod 12 and the injection tube 1, and the medicine is pushed out from the outlet 11 by pushing the piston rod 12.

At the same time, the dosing head 2 is threadedly connected to the injection tube 1 and has a dosing hole 21 communicating with the outlet 11, and the dosing head 2 is provided with a soft rubber sleeve 3, and one end of the soft rubber sleeve 3 is provided with a flat portion 31. And the flat part 31 has a slit at the end away from the dosing head 2 .

Therefore, during actual use, the flat part 31 of the soft rubber sleeve 3 is provided to realize the one-way flow function. This is because the soft rubber sleeve 3 can be deformed, so when medication is administered, the medicine will flow to the soft rubber sleeve 3 The force of the inner wall causes the flat part 31 to expand and open the slit to make the drug come out; on the contrary, if the drug wants to flow back, it will exert force on the outer wall of the soft rubber sleeve 3, so the slit at this time will not be due to It opens due to force, so the size of the gap cannot allow the drug to flow back.

Moreover, the dosing head 2 and the syringe tube 1 are threaded to facilitate replacement of the dosing head, thereby avoiding problems such as infection. At the same time, the soft rubber cover 3 is a sleeve, so it can be removed and replaced to avoid problems such as infection. Moreover, compared with the replacement of the entire applicator, the replacement of small parts such as the soft rubber cover 3 or the drug delivery head 2 can reduce costs and waste.

At the same time, the expansion and movement device is provided outside the syringe 1 and the administration head 2, and includes an expansion member 6 and a moving component 4. At the same time, the expansion member 6 is provided at one end of the moving component 4 and facilitates the entry of the administration head 2 by opening the anus, and The moving assembly 4 is connected to the syringe tube 1 to realize the movement of the syringe tube 1 and the entry of the drug administration head 2 .

Therefore, during actual use, the expansion member 6 is used to open the anus to facilitate the entry of the medication head 2 without the need for a hard plug, thereby improving comfort. At the same time, the arrangement of the moving assembly 4 has a guiding effect on the movement of the drug delivery head 2 and the syringe tube 1, thereby ensuring that the drug delivery head 2 and the syringe tube 1 enter straight without tilting left and right.

As shown in Figures 1 to 14, the moving component 4 includes a fixed part, and the enlarging part 6 is provided at one end of the fixed part, and the dosing head 2 and the syringe 1 are moved and set on the fixed part, and the connection between the fixed part and the syringe 1 There is a limiting component for limiting the movement of the injection tube 1.

Therefore, during actual use, the dosing head 2 and the syringe 1 are moved and arranged on the fixing member, thereby realizing the connection between the two ends, thereby ensuring that the dosing head 2 and the syringe 1 enter straight and there will be no problem due to only one A situation where parts are moved and set up, causing them to flip up and down.

And from the specific structure below, we know that compared with the structure of patent number 2018207273060, the structure of the present invention is simpler and easier to install.

The moving structure of the injection tube 1 and the drug delivery head 2 is as follows: first, groove rails 1 and 2 are provided on both sides of the syringe 1 and the drug delivery head 2, and the fixing parts are respectively provided corresponding to the groove rails 1 and 2. There are convex strips one 45 and two convex strips 46, and the movement is realized by the cooperation between the convex strips and the groove rail.

As shown in Figures 2 and 3, the fixing member includes a fixed plate 41 and a fixed plate 2 42, and a movable movable plate 43 is provided between the fixed plate 41 and the fixed plate 2 42. At the same time, the movable plate 43 has a mounting hole. hole 434, and a limiting component for limiting the movement of the moving plate 43 is provided between the moving plate 43 and the fixed plate one 41 or/and the fixed plate two 42.

At the same time, the injection tube 1 includes a mounting portion 14 , and the injection tube 1 passes through the mounting hole 434 , and the mounting portion 14 is engaged with the moving plate 43 . The snap connection can adopt the structure of buckles and snap holes.

Moreover, the moving structure of the moving plate 43 is: the moving plate 43 is provided with a groove rail three 435 corresponding to the protrusion one 45, and the movement is realized by the cooperation between the protrusion strip and the groove rail.

As shown in Figures 2 to 4, the limiting component includes a strip hole 411 and a strip groove 421 respectively opened on the first fixed plate 41 and the second fixed plate 42, and the second fixed plate 42 is opened on one side of the strip groove 421. There are several limiting holes 422. At the same time, a limiting rod 431 and a moving rod 432 are respectively provided on both sides of the moving plate 43 .

Therefore, during actual use, the moving rod 432 moves in the strip hole 411, and one end of the limiting rod 431 is located in the limiting hole 422 to limit the position, and the moving rod 432 is pulled outward to make the limiting rod 1 This end of 431 leaves the limiting hole 422 and is located in the strip groove 421 and then moves.

The setting of the limiting hole 422, in addition to limiting, can also be used to record the depth of entry of the drug delivery head 2. This is because the limiting holes 422 are generally arranged evenly, and the depth can be known by moving how many limiting holes 422 are moved. And in order to more clearly define the specific size of the depth, a scale can be set on one side of the limiting hole 422 .

As shown in Figures 1 and 2, the expansion member 6 is hingedly provided at one end of the moving component 4, and the expansion member 6 includes a spreading portion 61 and a pressing portion 62, and the spreading portion 61 and the pressing portion 62 are respectively located between the expanding member 6 and the moving component 4. On both sides of the hinged part of the component 4, the pressing part 62 is pressed to cause the expansion part 61 to evert out.

The hinge arrangement of the expansion member 6 and the moving component 4 can be a shaft-hole fit, and since the expansion member 6 needs to be pressed for a long time, a structure that limits the rotation of the expansion member 6 can be provided between the expansion member 6 and the moving component 5 . For example, the pressing part 62 is provided with a engaging part, that is, a bump or a buckle, etc., and the moving component 5 is provided with a corresponding hole, so that after a certain angle of rotation, the engaging part is located in the hole to limit the position.

As shown in Figure 14, the piston rod 12 includes a push rod 122 and a sealing rod 123, and the sealing rod 123 is located on the push rod 122, and the peripheral sides of the sealing rod 123 and the push rod 122 form two sets of sliding holes with the inner wall of the injection tube 1. The sealing surface is a double seal formed by the combination of two sets of sliding sealing surfaces. The injection tube 1 is provided with a scale to know the volume of the medicine.

Therefore, during actual use, double sealing is achieved through the setting of the sealing rod 123, and due to the double sealing, its moving speed will be slower under the same force, so that the medicine can enter slowly and give people a better experience. That is to avoid the discomfort caused by pushing too hard and causing a large amount of medicine to enter quickly.

Embodiment 2: This embodiment is basically the same as Embodiment 1. The difference lies in that, as shown in Figures 5 and 6, the limiting components are different. The limiting components of this embodiment include a fixed plate 41 and a fixed plate respectively. There are two strip-shaped holes two and three strip-shaped holes 423 42, and the side walls of the strip-shaped holes two and three strip-shaped holes 423 are respectively provided with a number of limiting holes two and three limiting holes 424. At the same time, the moving plate 43 moves and is provided with a limiting rod 2 433 .

Therefore, during actual use, the two ends of the limit rod 433 are respectively located in the limit hole 2 and the limit hole 3 424 for limiting, and by moving the limit rod 2 433, they are separated from the limit hole 2 and the limit hole 3. Position hole three 424 is located in strip hole two and strip hole three 423 and moves.

The setting of limit hole two and limit hole three 424, in addition to limiting, can also be used to record the depth of entry of the drug delivery head 2. This is because the limit hole two and the limit hole three 424 are generally arranged evenly, and the depth can be known by moving how many limit holes two and three limit holes 424 are moved. In addition, in order to clarify the specific size of the depth, a scale can be set on one side of the limit hole two and the limit hole three 424.

Embodiment 3: This embodiment is basically the same as Embodiment 1. The difference is that, as shown in Figure 7, the expansion member 6 is different. The expansion member 6 in this embodiment is an airbag, and the airbag is sleeved on one end of the moving component 4, and One end of the air bag is provided with an input tube 63, and air is supplied to the air bag through the input tube 63 to expand the air bag and open the anus. Moreover, compared with the first embodiment, this structure does not need to be pressed for a long time, so it is more convenient to use.

Embodiment 4: This embodiment is basically the same as Embodiment 1. The difference lies in that: as shown in Figures 9 to 11 and 13, the fixing parts are different. The fixing part in this embodiment is the shell 44, and the dosing head 2 and The injection tube 1 is movable and disposed in the housing 44, and the housing 44 is provided with a hole 441 for observation and convenient movement of the injection tube 1, and a limiting component for limiting the movement of the injection tube 1 is provided between the housing 44 and the injection tube 1.

At the same time, the limit assembly includes a limit rod 3 51 connected to the injection tube 1, and the injection tube 1 is provided with a limit hole 4 13, and the shell 44 is provided with a number of limit holes 442 on one side of the hole 441. Through the limit rod Three 51 pass through the limit hole five 442 and the limit hole four 13 in sequence to limit the position.

The setting of the limiting hole 13, in addition to limiting, can also be used to record the depth of entry of the drug delivery head 2. This is because the limiting holes 13 are generally arranged evenly, and the depth can be known by how many limiting holes 13 are moved. And in order to more clearly define the specific size of the depth, a scale can be set on one side of the limiting hole 13.

And because the limit rod three 51 is connected to the injection tube 1, it is avoided that the limit rod three 51 is not known where to put it when it is removed, thereby avoiding the loss of the limit rod three 51.

Embodiment 5: This embodiment is basically the same as Embodiment 4. The difference lies in that, as shown in Figure 12, the limiting component is different. The limiting component of this embodiment includes a limiting rod 452 that is rotated on the injection tube 1. , and the housing 44 is provided with several limiting holes 6 on one side of the hole 441, and the limiting rods 452 pass through the limiting holes 6 to limit the position.

The rotation structure of the limit lever 452 is as follows: firstly, a connecting column is provided on the injection tube 1, and the connecting column is hingedly connected with the limit lever 452 such as an axis hole, so the rotation of the limit lever 452 is realized.

Moreover, the setting of the six limiting holes can also be used to record the depth of entry of the drug delivery head 2 in addition to limiting the position. This is because the limit holes 6 are generally arranged evenly, and the depth can be known by how many limit holes 6 are moved. And in order to more clearly define the specific size of the depth, a scale can be set on one side of the limit hole six.

The basic principles and main features of the invention as well as the advantages of the invention have been shown and described above. At the same time, the present invention is not limited by the above embodiments. Therefore, the present invention will have various changes and improvements without departing from the principle and scope of the present invention. These changes and improvements all fall within the scope of the claimed invention.

Claims (4)

1. An anorectal surgical applicator, characterized in that it includes: The injection tube (1) has an outlet (11) at one end, and a piston rod (12) at the other end. The piston rod (12) and the injection tube (1) are used to place medicine and push the piston. The rod (12) thereby pushes the medicine out of the outlet (11); The drug administration head (2) is threadedly connected to the injection tube (1) and has a drug administration hole (21) connected to the outlet (11). The drug administration head (2) is covered with a soft rubber sleeve (3 ), and one end of the soft rubber sleeve (3) is provided with a flat portion (31), and the flat portion (31) has a slit at the end away from the drug delivery head (2); Expanding moving device, which is arranged outside the injection tube (1) and the drug administration head (2), and includes an expanding member (6) and a moving component (4). The expanding member (6) is provided at one end of the moving component (4) And by opening the anus, it is convenient for the drug administration head (2) to enter, and the moving component (4) is connected to the injection tube (1) to realize the movement of the injection tube (1) and thus the entrance of the drug administration head (2); The moving component (4) includes a fixed part, and an enlarging part (6) is provided at one end of the fixed part. The dosing head (2) and the syringe (1) are movable and installed on the fixed part, and the fixed part and the syringe tube A limiting component for limiting the movement of the injection tube (1) is provided between (1); The limiting assembly includes a limiting rod provided on the injection tube (1), and the position is limited by matching the limiting rod with the fixing member; The expansion piece (6) is an air bag, and the air bag is sleeved on one end of the moving component (4), and an input tube (63) is provided at one end of the air bag. Air is supplied to the air bag through the input tube (63) to expand and expand the air bag. anus; The fixing member includes a fixed plate one (41) and a fixed plate two (42), and a movable moving plate (43) is provided between the fixed plate one (41) and the fixed plate two (42). The moving plate (43) is provided with mounting holes (434), and a limiting component for limiting the movement of the moving plate (43) is provided between the moving plate (43) and the fixed plate one (41) or/and the fixed plate two (42). And the limit rod is set on the moving plate (43); The injection tube (1) includes a mounting portion (14), and the injection tube (1) passes through the mounting hole (434), and the mounting portion (14) is snap-connected with the moving plate (43); The two sides of the injection tube (1) and the drug delivery head (2) are respectively provided with groove rails one and two, and the fixing member is provided with one (45) and one protrusion respectively corresponding to the groove rails one and two. Article 2(46); The first convex strips (45) are four, and the second convex strips (46) are two, and the two convex strips 1 (45) and one convex strip 2 (46) are a group, and the convex strips 2 (46) of each group are ) is located between the two convex strips one (45), and the line connecting the midpoints of the two convex strips one (46) and the two convex strips one (45) is a triangle. 2. An anorectal surgical applicator according to claim 1, characterized in that: the limiting component includes a strip hole (411) respectively opened in the first fixed plate (41) and the second fixed plate (42). ) and a strip groove (421), and the fixed plate two (42) has several limiting holes (422) on one side of the strip groove (421); A limiting rod (431) and a moving rod (432) are respectively provided on both sides of the moving plate (43), and the moving rod (432) moves in the strip hole (411). The limiting rod (431) ) one end is located in the limit hole one (422) to limit the position, and by pulling the moving rod (432) outward, the end of the limit rod one (431) leaves the limit hole one (422) and is located in the strip groove (421 ) and then move within. 3. An anorectal surgical applicator according to claim 1, characterized in that: the limiting component includes a strip hole two and a strip respectively opened on the first fixing plate (41) and the second fixing plate (42). Shape hole three (423), and the side walls of strip hole two and strip hole three (423) are respectively provided with several limit holes two and three limit holes (424); The moving plate (43) is provided with two limiting rods (433), and both ends of the two limiting rods (433) are respectively located in the two limiting holes and the three limiting holes (424) for position limiting, and through Move the limit rod two (433) to leave the limit hole two and the limit hole three (424) and be located in the strip hole two and the strip hole three (423) and then move. 4. An anorectal surgical applicator according to any one of claims 1 to 3, characterized in that: the piston rod (12) includes a push rod (122) and a sealing rod (123), and the sealing rod (123) 123) is located on the push rod (122), and the peripheral sides of the sealing rod (123) and the push rod (122) form two sets of sliding sealing surfaces with the inner wall of the injection tube (1), thereby achieving double sealing.