CN219148015U - Animal cerebral hemorrhage suction model retention device - Google Patents

Abstract

The utility model discloses an animal cerebral hemorrhage suction model retention device, which comprises a tubular retention cylinder, wherein a blocking mechanism is arranged on the tubular retention cylinder, the blocking mechanism comprises an elastic ring arranged on the tubular retention cylinder and elastic thorns arranged on the tubular retention cylinder in a circumferential array, and extension bulges are arranged on the elastic ring. The utility model provides a suction device for a rat cerebral hemorrhage model, which is characterized in that a mini-injector is inserted into a tubular retention cylinder and directly stretches into the tubular retention cylinder along an opened hole, at the moment, an elastic thorn is clamped to an elastic ring and pushes an extension bulge to fold towards the elastic ring, so that the sectional area of the elastic ring is increased, the effect of blocking the hole is achieved, intracranial blood or tissue fluid is prevented from flowing out, then the mini-injector is used for injection, the mini-injector is pulled out after the injection, the tubular retention cylinder is retained at the top of the rat cranium, and a flap is further arranged, so that the blood or tissue fluid can be prevented from flowing out of the brain in the subsequent injection.

Description

Animal cerebral hemorrhage suction model retention device

Technical Field

The utility model relates to the technical field of experimental instruments, in particular to a device for retaining an animal cerebral hemorrhage suction model.

Background

When the animal cerebral hemorrhage suction model is used for experiments, the rat cranium top can be drilled, so that the injection of autologous blood during the modeling is convenient.

According to patent number CN202110116162.1, publication (bulletin) day: 2021-06-11 discloses a laboratory mouse cerebrospinal fluid extraction device based on double syringes, which comprises a base, an extractor, a syringe, a mounting mechanism, a valve seat, a needle, a valve core and an extraction and injection mechanism. The extraction device can timely supplement cerebrospinal fluid replacement fluid to the cerebellum medullary pool of the experimental mouse without pulling out the needle after extracting cerebrospinal fluid of the experimental mouse, is convenient and quick to operate, effectively avoids brain death of the experimental mouse caused by untimely injection of the replacement fluid, improves the accuracy of experimental data, ensures the safety and high efficiency of experiments, and provides a guarantee for smooth implementation of the experiments.

In the prior art comprising the above patent, after the rat parietal is drilled and molded, intracranial blood can flow out from the drilled hole, and at the moment, the rat parietal is required to be plugged, but the injection of the medicament is inconvenient after the plugging, and the position of hematoma is difficult to be determined by puncture again after the plugging, so that the injection of the medicament and the hematoma suction are inconvenient for a plurality of times and in a small amount.

Disclosure of Invention

The utility model aims to provide an animal cerebral hemorrhage suction model retention device, which aims to solve the problems that a hole after craniotomy is inconvenient for hematoma suction and a hematoma cavity is injected with medicine.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides an animal cerebral hemorrhage suction model retention device, includes a tubular detention section of thick bamboo, be provided with shutoff mechanism on the tubular detention section of thick bamboo, shutoff mechanism including set up in elastic ring on the tubular detention section of thick bamboo with be the circumference array set up in elastic thorn on the tubular detention section of thick bamboo, be provided with on the elastic ring and extend the arch, elastic thorn is driven the upset in order to push against extend protruding bending.

Preferably, the one-way frame is clamped in the tubular retention cylinder, the one-way frame is symmetrically and rotationally connected with the valves, and the valves are driven to turn over to block the one-way frame.

Preferably, a limiting block is arranged on the unidirectional frame, and the valve is driven to be attached to the limiting block.

Preferably, the first end of the tubular retention tube is provided with a fitting elastic piece.

Preferably, the attaching elastic piece is provided with a circular groove, and the circular groove is clamped with a protective cover.

Preferably, the tubular retention cylinder is a silica gel cylinder.

Preferably, the laminated elastic sheet is a silicone sheet.

Preferably, the elastic thorns are metal thorns.

In the technical scheme, the animal cerebral hemorrhage suction model retention device provided by the utility model has the following beneficial effects: the micro injector is inserted into the tubular detention cylinder after the rat cranium is opened, the micro injector directly stretches into the tubular detention cylinder along the opened hole, at the moment, the elastic thorns are closed along with the clamping into the elastic ring and push the extension bulge to fold towards the elastic ring, so that the cross section area of the elastic ring is increased, the effect of blocking the hole is achieved, intracranial blood or tissue fluid is prevented from flowing out, then the micro injector is used for injection, the micro injector is pulled out after the injection, the tubular detention cylinder is detained at the rat cranium, and a valve is further arranged, so that the blood or tissue fluid can be prevented from flowing out of the brain in subsequent injection.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic view of an embodiment of the present utility model;

FIG. 2 is an overall explosion schematic provided by an embodiment of the present utility model;

FIG. 3 is a schematic view of an elastic ring and an elastic spine according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a tubular retention tube; 11. a unidirectional frame; 12. a limiting block; 13. a valve; 2. attaching an elastic sheet; 21. circular ring grooves; 22. a protective cover; 4. a plugging mechanism; 41. an elastic ring; 42. an extension protrusion; 43. elastic thorns.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

As shown in fig. 1-3, an animal cerebral hemorrhage suction model retention device comprises a tubular retention tube 1, wherein a blocking mechanism 4 is arranged on the tubular retention tube 1, the blocking mechanism 4 comprises an elastic ring 41 arranged on the tubular retention tube 1 and elastic thorns 43 arranged on the tubular retention tube 1 in a circumferential array, extension protrusions 42 are arranged on the elastic ring 41, and the elastic thorns 43 are driven to turn over to push the extension protrusions 42 to bend.

Specifically, a plugging mechanism 4 is arranged on the tubular retention cylinder 1, the plugging mechanism 4 comprises an elastic ring 41 arranged on the tubular retention cylinder 1 and elastic thorns 43 arranged on the tubular retention cylinder 1 in a circumferential array, and extension protrusions 42 are arranged on the elastic ring 41; when the mouse head is used, firstly, a hole is formed in the head of a mouse, the hole is tubular, a mini-injector is inserted into the tubular retention cylinder 1, the mini-injector directly stretches into the hole along the formed hole and continuously fits with the hole, the mini-injector is bent along the skull along with sliding of the elastic thorn 43 and approaches the extension bulge 42, and finally the elastic thorn 43 pushes the extension bulge 42 to bend and fit with the elastic ring 41 together, so that the extension bulge 42 and the elastic ring 41 are fit to play a role of plugging the hole, and the medicine can be administered through the upper end (taking fig. 2 as a reference) of the tubular retention cylinder 1, and the lower end (taking fig. 2 as a reference) is tubular, so that blood or tissue fluid is not easy to flow out. After injection, the mini-injector is pulled out, the tubular retention tube 1 is retained on the cranium top of the mouse, so that the next administration is convenient, and the administration points are consistent.

In the above technical scheme, after the rat cranium is opened, the mini-injector is inserted into the tubular retention cylinder 1 and directly stretches into the opened hole, at the moment, the elastic thorns 43 are closed along with the clamping into the elastic ring 41 and push the extension protrusions 42 to fold towards the elastic ring 41, so that the sectional area of the elastic ring 41 is increased, the effect of blocking the hole is achieved, intracranial blood or tissue fluid is prevented from flowing out, then the mini-injector is used for injection, the mini-injector is pulled out after the injection, the tubular retention cylinder 1 is retained at the rat cranium, and the valve 13 is further arranged, so that the blood or tissue fluid can be prevented from flowing out of the brain in the subsequent injection.

As a further provided embodiment, be provided with unidirectional frame 11 in the tubular detention section of thick bamboo 1, symmetry rotation is connected with flap 13 (flap 13 can be semicircle form, also can be disk form) on unidirectional frame 11, be provided with stopper 12 on unidirectional frame 11, stopper 12 is used for restricting flap 13 can only inwards (in the tubular detention section of thick bamboo 1 promptly) upset to play and prevent blood or tissue fluid outflow brain, when blood or tissue fluid will gush out, can push against flap 13 upset shutoff unidirectional frame 11, and when needs inject the medicine into the brain, directly contact flap 13 with the microinjector and push against the upset in order to inject.

As an embodiment of the present utility model, the first end (refer to fig. 2, the first end is the upper end) of the tubular retention tube 1 is provided with a bonding elastic piece 2, the bonding elastic piece 2 is provided with a circular groove 21, the circular groove 21 is clamped with a protective cover 22, after the tubular retention tube 1 is inserted, the bonding elastic piece 2 is bonded with the skull of a mouse, so as to prevent the displacement of the tubular retention tube 1, and when the injection is not performed, the protective cover 22 can be clamped on the circular groove 21 to seal the tubular retention tube 1.

As the embodiment of the utility model further provides, tubular detention section of thick bamboo 1 and elasticity thorn 43 are made for the metal, and not fragile warp, laminating elastic piece 2 are made for silica gel, possess better elasticity, and comparatively moist after the disinfection of mouse skull, and the laminating elastic piece 2 of silica gel can play certain adsorption.

Working principle: firstly, a hole is formed in the cranium of a mouse, the hole is tubular, a micro injector is inserted into the tubular detention cylinder 1, the micro injector directly stretches into and continuously fits with the hole along the formed hole, an elastic thorn 43 bends along the cranium along with sliding and approaches to an extension bulge 42, and finally the elastic thorn 43 pushes the extension bulge 42 to bend together and fit with an elastic ring 41, so that the extension bulge 42 and the elastic ring 41 fit together to play a role of blocking the hole, and the micro injector can be administered through the upper end (taking figure 2 as a reference) of the tubular detention cylinder 1, and the lower end (taking figure 2 as a reference) is tubular, so that blood or tissue fluid cannot flow out easily. The mini-injector is pulled out after injection, the tubular retention tube 1 is retained on the top of the cranium of the mouse so as to facilitate the next administration, the administration points are consistent, the cranium of the mouse is wet after disinfection, the attached elastic piece 2 of the silica gel can play a certain adsorption role, and when the injection is needed, the mini-injector is directly held by hands to contact the valve 13 and push the valve 13 to turn over for injection, and the protective cover 22 is clamped on the circular groove 21 for blocking the tubular retention tube 1 when the injection is not performed.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (8)

1. The utility model provides an animal cerebral hemorrhage suction model retention device which is characterized in that, including a tubular detention section of thick bamboo (1), be provided with shutoff mechanism (4) on a tubular detention section of thick bamboo (1), shutoff mechanism (4) including set up in elastic ring (41) on a tubular detention section of thick bamboo (1) and be the circumference array set up in elastic thorn (43) on a tubular detention section of thick bamboo (1), be provided with on elastic ring (41) and extend protruding (42), elastic thorn (43) are driven the upset in order to push against extend protruding (42) crooked.

2. The animal cerebral hemorrhage suction model retention device according to claim 1, wherein a one-way frame (11) is clamped in the tubular retention cylinder (1), flaps (13) are symmetrically and rotationally connected to the one-way frame (11), and the flaps (13) are driven to turn over to block the one-way frame (11).

3. The animal cerebral hemorrhage suction model retention device according to claim 2, wherein a limiting block (12) is arranged on the unidirectional frame (11), and the valve (13) is driven to be attached to the limiting block (12).

4. The animal cerebral hemorrhage suction model retention device according to claim 1, wherein the first end of the tubular retention tube (1) is provided with a fitting elastic sheet (2).

5. The animal cerebral hemorrhage suction model retention device according to claim 4, wherein the fitting elastic piece (2) is provided with a circular groove (21), and the circular groove (21) is clamped with a protective cover (22).

6. The animal cerebral hemorrhage suction model retention device according to claim 1, wherein the tubular retention tube (1) is a silica gel tube.

7. The animal cerebral hemorrhage suction model retention device according to claim 4, wherein the fitting elastic sheet (2) is a silica gel sheet.

8. The animal cerebral hemorrhage suction model retention device according to claim 1, wherein the elastic thorn (43) is a metal thorn.

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