CN216535458U - Device convenient to dose under peritoneum - Google Patents

Abstract

The utility model relates to a device convenient for intraperitoneal administration, which comprises a handle used for operation, an administration needle used for administration, and an operation body connected with the handle, wherein an administration structure used for administration is arranged in the operation body, the administration needle is connected with the operation body, the administration needle is a hollow needle, and the front end of the administration structure extends into the administration needle; the handle is connected with the drug administration structure, and the drug administration structure is controlled to move in the drug administration needle by pressing the handle; the operation body is provided with a dosing groove which can place the medicine into the dosing needle; the medicine in the medicine feeding needle is pushed out to the treatment position by the medicine feeding structure moving forwards in the medicine feeding needle, and the problem that solid medicine powder blows back under the positive pressure of the peritoneum can be effectively avoided because the front end of the medicine feeding structure extends into the medicine feeding needle.

Description

Device convenient to dose under peritoneum

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a device convenient for sub-abdominal drug delivery.

Background

At present, the treatment methods of peritoneal tumors include surgical resection and peritoneal perfusion thermotherapy or chemotherapy, but the two treatment modes belong to intraperitoneal administration; the administration under the peritoneum is to put the used chemotherapy drugs to the affected part of the peritoneum of a patient, so that the effective drug concentration at the affected part is higher, thereby obtaining better clinical treatment effect. For the administration under the peritoneum, at present, no experience and technology related to the treatment of the sub-peritoneal administration exists at home and abroad.

At present, if the peritoneal tumor is clinically expected to be treated by the peritoneal administration, part of the peritoneum can be cut to release the medicine in an open state, and then the peritoneum is sutured; there is no experience under laparoscopy: if the administration is performed intraperitoneally using existing devices, the following risks exist: 1. in the laparoscope operation process, the peritoneum needs to be picked up, and then the medicine is put under the peritoneum, so that the requirement on the experience of an operation doctor is high; 2. positive pressure gas exists under the peritoneum, so that the put medicine is easy to blow away or blow out, and the medicine cannot enter the accurate position; 3. when the operation of drug delivery under the peritoneum is carried out, special instruments are lacked, the operation process is more complicated, time and labor are wasted, and the energy of doctors is wasted.

The present invention has been made in view of the above problems, and provides a device for administering drugs under the peritoneum which is used in a laparoscopic/open state.

SUMMERY OF THE UTILITY MODEL

To overcome the problems noted in the background, the present invention provides a device for facilitating sub-abdominal administration.

A device convenient for sub-abdominal drug delivery comprises a handle and a drug delivery needle, wherein the handle is used for operation, the drug delivery needle is used for drug delivery, an operation body connected with the handle is arranged, a drug delivery structure used for drug delivery is arranged inside the operation body, the drug delivery needle is connected with the operation body, the drug delivery needle is a hollow needle, and the front end of the drug delivery structure extends into the drug delivery needle; the handle is connected with the drug administration structure, and the drug administration structure is controlled to move in the drug administration needle by pressing the handle; the operation body is provided with a drug feeding groove which can place drugs into the drug feeding needle; the medicine in the medicine feeding needle is pushed out to the treatment position by the medicine feeding structure moving forwards in the medicine feeding needle, and the problem that solid medicine powder blows back under the positive pressure of the peritoneum can be effectively avoided because the front end of the medicine feeding structure extends into the medicine feeding needle.

Further, the cavity is placed to the internal portion setting of operation, and the intracavity is being placed in the structure setting of dosing, doses behind the peritoneum through the structure of dosing.

Furthermore, a first through hole and a second through hole which are communicated with the placing cavity are formed in the operation body, the drug administration structure penetrates through the first through hole and the second through hole, and the first through hole is used for enabling the drug administration structure to extend into the drug administration needle through the placing cavity; the second through hole is used for enabling the drug administration structure to extend out of the placing cavity; the drug administration structure is fixed through the first through hole and the second through hole, and the drug is placed.

Further, the medicine feeding groove is formed in the top of the operation body and communicated with the first through hole, and the first through hole is communicated with the second through hole to form a cone shape, so that the phenomenon of a medicine clamping groove is prevented from occurring when medicines are placed in the medicine feeding groove.

Furthermore, a top cover is arranged on the medicine feeding groove, torsion springs are arranged on the left side and the right side of the top cover, the medicine feeding groove is in a closed state, a groove for opening the medicine feeding groove is formed in the operation body, and therefore the medicine is prevented from falling due to improper operation after the medicine is placed; the medicine waste is reduced.

Further, the groove left side or the right side of dosing sets up to transparent enclosing cover, and length and the groove of dosing is the same, and this setting can be observed and give the inslot and have or not take place the card medicine phenomenon to can observe the distance that the push rod pulled back.

Further, operation body one end is connected with the needle of dosing, and the first end of needle of dosing is sharp end, picks up the peritoneum through the first end of needle of dosing, realizes the dosing behind the peritoneum.

Further, an elastic collar for preventing the medicine from falling is arranged in the administration needle.

Further, the administration structure comprises: the setting is at the baffle of placing the intracavity, promote the push rod that the medicine gos forward, carry out the clamp plate one that pushes forward to the push rod of being connected with the handle, carry out the spacing clamp plate two after the preceding push to the push rod, set up the reset spring one that makes the effective reset of clamp plate one, still set up the reset spring two that makes the clamp plate two keep the spacing reset state of slope, clamp plate one is when promoting forward, the clamp plate two are parallel with the terminal surface of push rod through the push rod traction, guarantee that the push rod normally promotes forward, when the clamp plate one resets after pressing down, clamp plate one resets through reset spring, and be on a parallel with the terminal surface of push rod, clamp plate two resets and form the slope through reset spring two simultaneously, carry out spacing fixed to the push rod.

Further, the baffle divide into baffle one and baffle two, sets up the through-hole one the same with push rod shape size on baffle one and the baffle two, and two baffles can effectively support the push rod, guarantee that the push rod can not appear rocking when pushing up in the front, the push rod passes through hole one, through hole two and through-hole one.

Furthermore, the centers of the first through hole and the second through hole which are arranged in the operating body are on the same horizontal line. The push rod can be ensured to be horizontal through the arrangement.

Further, the push rod is set to be any polygonal cylindrical rod; wherein the push rod is preferably in a regular hexagon shape, and the arrangement can effectively enable the push rod to be jacked forwards.

Furthermore, the first reset spring is arranged between the first partition plate and the first pressure plate and used for resetting the first pressure plate.

Further, a return spring is arranged around the push rod; this arrangement ensures that the spring is stable in position.

Furthermore, the first pressure plate is provided with a first connecting shaft connected with the handle, the handle is provided with a first connecting hole, and a stop block is arranged on the periphery of the connecting hole of the handle, so that the problem that the first pressure plate is turned over in a transition mode when the handle is pressed is solved; the pressing handle is pressed to drive the pressing plate to move forwards so as to push the push rod forwards, and the medicine is put into the body of the patient.

Furthermore, a second through hole with the same shape as the push rod is arranged on the first pressing plate, and the diameter of the excircle of the through hole does not exceed 1/4 of the diameter of the excircle of the push rod.

Furthermore, the second pressing plate is arranged in a placing groove in the rear end of the operation body, the second pressing plate is provided with a second connecting shaft, the second pressing plate is connected through a second connecting hole in a fixing plate in the placing groove, and the second pressing plate is used for limiting the push rod after being pushed forwards and backwards to prevent the push rod from backing up.

Furthermore, one end of the second reset spring is arranged in a spring groove at the rear end of the operation body, and the other end of the second reset spring is connected with the inner side of the second pressing plate, so that the second pressing plate keeps fixing the push rod.

Furthermore, a stop protrusion is arranged vertically below the spring groove, and after the second pressing plate presses the stop protrusion, the second pressing plate is parallel to the end face of the push rod and can pull out the push rod when the second pressing plate is parallel to the end face of the push rod.

Further, the length of the second pressure plate is larger than that of the first pressure plate, and the length of the second pressure plate exceeding the first pressure plate does not exceed 1/2 of the first pressure plate.

When the medicine dispensing needle is used, the pressing plate II is pressed to draw the push rod out to the position where the through hole I is communicated with the placing cavity but not separated from the through hole I, the medicine dispensing groove is opened, medicine is placed into the through hole I through the medicine dispensing groove, then the push rod is pushed forwards, the first pill is in contact with the elastic lantern ring in the medicine dispensing needle, and the pill is prevented from falling through the elastic lantern ring; the sharp end of the administration needle is placed into the body of a patient, the peritoneum is slightly unfolded through the sharp end, the push rod is driven by the pressing plate to push the medicine through the pressing handle, and the medicine is placed on the diseased part or the diseased part of the patient.

The utility model has the beneficial effects that: through setting up the structure of dosing and accomplish the promotion through pressing the handle and dose, simplified the problem of the difficulty of dosing under the peritoneum, the positive pressure gas under the peritoneum that can be fine is resisted to the mode of dosing of inside promotion formula simultaneously, can be fine fix the medicine under the peritoneum after placing the medicine.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

FIG. 4 is a schematic left side view of the present invention;

FIG. 5 is a schematic cross-sectional view of a drug delivery structure according to the present invention;

FIG. 6 is an enlarged schematic cross-sectional view of a drug delivery structure according to the present invention;

FIG. 7 is a schematic view of the handle of the present invention;

FIG. 8 is a schematic view of a pushrod of the present invention;

FIG. 9 is a schematic view of a platen according to the present invention;

in the figure, 1, an operation body; 11. a placement chamber; 12. a first through hole; 13. a second through hole; 14. a dosing tank; 141. a top cover; 2. a dosing needle; 21. an elastic collar; 3. a first clapboard; 31. a second clapboard; 311. a first through hole; 32. a push rod; 33. pressing a first plate; 331. a first connecting shaft; 34. pressing a second plate; 341. a second through hole; 35. a first return spring; 36. a second return spring; 4. a handle; 41. a stopper; 5. a placement groove; 51. a fixing plate; 6. A stop projection; 61. and (4) an outer cover.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example 1

Reference is made to fig. 1-4; a device convenient for sub-abdominal drug delivery comprises a handle 4 used for operation and a drug delivery needle 2 used for drug delivery, an operation body 1 connected with the handle 4 is arranged, a drug delivery structure used for drug delivery is arranged inside the operation body 1, the drug delivery needle 2 is connected with the operation body 1, the drug delivery needle 2 is a hollow needle, and the front end of the drug delivery structure extends into the drug delivery needle 2; the handle 4 is connected with the administration structure, and the administration structure is controlled to move in the administration needle 2 by pressing the handle 4; the medicine in the administration needle 2 is pushed out to the treatment position by the administration structure moving forwards in the administration needle 2, and the problem of blowing back of solid medicine powder under the positive pressure of the peritoneum can be effectively avoided because the front end of the administration structure extends into the administration needle 2.

Example 2

Referring to fig. 1-2, a drug delivery structure is provided based on example 1, the drug delivery structure comprising: the medicine pushing device comprises a partition plate arranged in a placing cavity 11, a push rod 32 for pushing medicine to advance, a first pressing plate 33 connected with a handle 4 and used for pushing the push rod 32 forwards, a second pressing plate 34 used for pushing the push rod 32 forwards and backwards in a limiting mode, a first return spring 35 used for enabling the first pressing plate 33 to effectively return, and a second return spring 36 used for enabling the second pressing plate 34 to keep an inclined limiting return state, wherein the first pressing plate 33 is pushed forwards, the second pressing plate 34 is pulled to be parallel to the end face of the push rod 32 through the push rod 32, the push rod 32 is enabled to normally push forwards, when the first pressing plate 33 is pressed and then returns, the first pressing plate 33 is reset through the return spring and is parallel to the end face of the push rod 32, meanwhile, the second pressing plate 34 is reset through the second return spring 36 and forms inclination, and the push rod 32 is limited and fixed. The baffle divide into baffle one 3 and baffle two 31, sets up the through-hole 311 the same with push rod 32 shape size on baffle one 3 and the baffle two 31, and two baffles can effectively support push rod 32, guarantee that push rod 32 can not appear rocking when pushing up in the front, push rod 32 passes through-hole one 12, through-hole two 13 and through-hole 311.

The centers of the first through hole 311 arranged on the first partition plate 3 and the second partition plate 31 and the centers of the first through hole 12 and the second through hole 13 arranged in the operating body 1 are on the same horizontal line. By this arrangement, the push rod 32 can be ensured to be horizontal.

The push rod 32 is provided as an arbitrary polygonal cylindrical rod; wherein the pushrod 32 is preferably a regular hexagon, which arrangement is effective to cause the pushrod 32 to push forward.

The first return spring 35 is arranged between the first partition plate 3 and the first pressure plate 33 and is used for returning the first pressure plate 33. Preferably, the return spring is disposed about the push rod 32; this arrangement ensures that the spring is stable in position.

The first pressure plate 33 is provided with a first connecting shaft 331 connected with the handle 4, the handle 4 is provided with a first connecting hole, and the periphery of the connecting hole of the handle 4 is provided with a stop block 41, so that the problem that the first pressure plate 33 is folded in a transition manner when the handle 4 is pressed is solved; the handle 4 is pressed to drive the first pressing plate 33 to move forwards so that the push rod 32 is pushed forwards, and the medicine is placed into the body of the patient.

The first pressing plate 33 is provided with a second through hole 341 with the same shape as the push rod 32, and the diameter of the circumscribed circle of the second through hole 341 is larger than that of the circumscribed circle of the push rod 32.

The outside diameter of the second 341 does not exceed 1/4 of the outside diameter of the pushrod 32.

The second pressing plate 34 is arranged in the placing groove 5 at the rear end of the operating body 1, the second pressing plate 34 is provided with a second connecting shaft, the second connecting shaft is connected through a second connecting hole in the fixing plate 51 in the placing groove 5, and the second connecting shaft is used for limiting the push rod 32 in a forward and backward mode and preventing the push rod 32 from backing up.

One end of a second return spring 36 is arranged in a spring groove at the rear end of the operating body 1, and the other end of the second return spring is connected with the inner side of the second pressure plate 34, so that the second pressure plate 34 keeps fixing the push rod 32.

And a stop boss 6 is arranged vertically below the spring groove, and after the second pressing plate 34 presses the stop boss 6, the second pressing plate 34 is parallel to the end surface of the push rod 32, and the push rod 32 can be drawn out when the second pressing plate 34 is parallel.

The length of the second pressing plate 34 is greater than that of the first pressing plate 33, and the length of the second pressing plate 34 exceeding the first pressing plate 33 does not exceed 1/2 of the first pressing plate 33.

Example 3

Referring to fig. 5 to 9, the operation body 1 is provided based on example 1, a placement chamber 11 is provided inside the operation body 1, a drug administration structure is provided inside the placement chamber 11, and retroperitoneal drug administration is performed through the drug administration structure.

A first through hole 12 and a second through hole 13 which are communicated with the placing cavity 11 are arranged in the operation body 1, the drug administration structure penetrates through the first through hole 12 and the second through hole 13, and the first through hole 12 is used for enabling the drug administration structure to extend into the drug administration needle 2 through the placing cavity 11; the second through hole 13 is used for realizing that the drug administration structure extends out through the placing cavity 11. The drug delivery structure is fixed through the first through hole 12 and the second through hole 13, and the drug is placed.

Example 4

Referring to fig. 2, a drug administration needle 2 is provided on the basis of embodiment 2, one end of an operation body 1 is connected with the drug administration needle 2, the first end of the drug administration needle 2 is a sharp end, and the peritoneum is lifted up through the first end of the drug administration needle 2, so that the retroperitoneal drug administration is realized.

An elastic collar 21 for preventing the medicine from falling is arranged in the administration needle 2.

Example 5

Referring to fig. 1, a dosing groove 14 is arranged on the basis of embodiment 1, the dosing groove 14 is arranged at the top of the operating body 1, the dosing groove 14 is communicated with the first through hole 12, and a section of the dosing groove 14 communicated with the first through hole 12 is tapered, so that a medicine clamping groove phenomenon is prevented when medicine is placed in the dosing groove 14.

The top cover 141 is arranged on the medicine feeding groove 14, the torsion springs are arranged on the left side and the right side of the top cover 141, the medicine feeding groove 14 is in a closed state, and the groove for opening the medicine feeding groove 14 is formed in the operation body 1, so that the medicine is prevented from falling due to improper operation after the medicine is placed; the medicine waste is reduced.

The left side or the right side of the medicine feeding groove 14 is provided with a transparent outer cover 61, the length of the outer cover is the same as that of the medicine feeding groove 14, the medicine clamping phenomenon in the medicine feeding groove 14 can be observed, and the backward pulling distance of the push rod 32 can be observed.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the utility model without departing from the principle of the utility model, which would also fall within the scope of the claims of the utility model.

Claims (10)

1. A device for facilitating sub-abdominal administration comprising, a handle for manipulation and an administration needle for feeding a medicament; the drug administration device is characterized in that an operation body connected with the handle is arranged, a drug administration structure for drug administration is arranged in the operation body, a drug administration needle is connected with the operation body, the drug administration needle is a hollow needle, and the front end of the drug administration structure extends into the drug administration needle; the handle is connected with the drug administration structure, and the drug administration structure is controlled to move in the drug administration needle by pressing the handle; the operation body is provided with a medicine feeding groove which can place medicine into the medicine feeding needle.

2. The device for facilitating sub-abdominal administration of a drug according to claim 1, wherein the operating body is internally provided with a placement cavity, and the administration structure is provided in the placement cavity.

3. The device for facilitating sub-abdominal administration of a drug according to claim 2, wherein the operation body is provided with a first through hole and a second through hole communicated with the placing cavity, and the administration structure passes through the first through hole and the second through hole.

4. The device for facilitating sub-abdominal administration of a drug according to claim 1, wherein the administration groove is formed at the top of the operation body, the administration groove is communicated with the first through hole, and a section of the administration groove communicated with the first through hole is tapered.

5. The device for facilitating sub-abdominal administration of a drug according to claim 4, wherein the administration trough is provided with a top cover, the top cover is provided with torsion springs at left and right sides thereof to make the administration trough in a closed state, and the operation body is provided with a groove for opening the administration trough.

6. The device for facilitating sub-abdominal administration of a drug according to claim 5, wherein the left or right side of the administration groove is provided with a transparent outer cover, and the length of the administration groove is the same as that of the administration groove, so that the presence or absence of drug jamming in the administration groove can be observed, and the distance of the push rod pulled backwards can be observed.

7. The device for facilitating sub-abdominal administration of a drug according to claim 1, wherein the operating body is connected at one end to an administration needle, the first end of the administration needle being a sharp end.

8. The device for facilitating sub-abdominal administration of a drug according to claim 7, wherein an elastic collar is provided inside the administration needle to prevent the drug from falling out.

9. The device for facilitating sub-abdominal administration of a drug according to claim 1, wherein the administration structure comprises: the baffle that sets up placing the intracavity promotes the medicine and gos forward, the clamp plate one that pushes forward the push rod that is connected with the handle, push rod two spacing after the preceding push, the setting makes clamp plate one reset spring one that effectively resets, still sets up the reset spring two that makes clamp plate two keep the spacing reset state of slope.

10. The device for facilitating sub-abdominal administration of claim 7, wherein a stop tab is provided vertically below the spring slot.

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