Anesthesia puncture needle for anesthesia department

Abstract

The utility model relates to the technical field of medical anesthesia appliances, and discloses an anesthesia puncture needle for an anesthesia department, which comprises a puncture needle cylinder and a puncture needle body arranged on the top side of the puncture needle cylinder, a sealing piston matched with an inner cavity of the puncture needle cylinder is arranged in the puncture needle cylinder, and a push rod is fixedly mounted in the middle of the right end of the sealing piston. A positioning mechanism for fixing the puncture needle body is arranged at the top end of the puncture needle cylinder and comprises a needle head protecting sleeve arranged on the outer side of the right end of the puncture needle body in a sleeving mode and a positioning frame clamped to the outer wall of the left end of the puncture needle body, and the bottom ends of the needle head protecting sleeve and the positioning frame are fixedly connected with the corresponding positions of the top surface of the puncture needle cylinder. A limiting mechanism used for supporting the push rod is arranged on the rear side of an inner cavity of the puncture needle cylinder. By arranging the positioning mechanism and the limiting mechanism, the problem that the push rod inclines during injection of the equipment is solved, meanwhile, damage to the wall face of an inner cavity of the puncture needle cylinder is avoided, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical anesthetic appliance technical field especially anesthesia department's anesthetic puncture needle. BACKGROUND

[0002] Through the search application number 202020248797.8 discloses a kind of anesthesia department's anesthetic puncture needle, including puncture needle cylinder, the outer side wall of one end of puncture needle cylinder is fixedly connected with fixed clamping block, the upper end of fixed clamping block is equipped with the first recess, the inner wall of the middle part of first recess is equipped with limit slot, puncture needle body is arranged in the first recess, the outer side wall of puncture needle body is fixedly sleeved with limit block, limit block is located in limit slot and with limit slot is matched, the outer side wall of the other end of puncture needle cylinder is fixedly connected with fixed block.

[0003] The anesthetic puncture needle of the patent application in anesthesia department in the use process, by using limit sleeve to push rod form supporting action, push rod does not occur inclination in the equipment in injection process, to avoid the situation that sealing piston occurs inclination and causes drug leakage, but in the process of using like this, because the side wall surface of limit sleeve is provided with ball, when push rod moves, ball on limit sleeve is rolled on the inner wall of puncture needle cylinder, it is easy to cause damage to the inner wall of puncture needle cylinder, cause sealing piston and the inner wall of puncture needle cylinder cannot keep adhering and matching and cause drug leakage, reduce the service life of the equipment, for this purpose, we propose a kind of anesthesia department's anesthetic puncture needle. UTILITARY MODEL CONTENTS

[0004] The utility model mainly solves the technical problem existing in the prior art above, provides a kind of anesthesia department's anesthetic puncture needle.

[0005] To achieve the above object, the utility model adopts the following technical scheme, a kind of anesthesia department's anesthetic puncture needle, including puncture needle cylinder and the puncture needle body of being set to the top side of puncture needle cylinder, the left side middle part of puncture needle cylinder is equipped with connecting hole and is communicated with the left end of puncture needle body by rubber hose, the inner chamber of puncture needle cylinder is provided with sealing piston matched therewith, the right end middle part of sealing piston is fixedly installed with push rod, the top end of puncture needle cylinder is provided with the positioning mechanism of fixed puncture needle body, positioning mechanism includes needle head protective sleeve of being set to the right end outer side of puncture needle body and the positioning frame of being clamped to the left end outer wall of puncture needle body, the bottom of needle head protective sleeve and positioning frame is fixedly connected with the top surface of puncture needle cylinder corresponding position, the rear side of puncture needle cylinder inner chamber is provided with the limit mechanism for supporting push rod, limit mechanism includes the annular limit block of being clamped with the left part of puncture needle cylinder inner chamber and the multiple limit balls of being evenly arranged on the one side arc wall surface of annular limit block deviated from axis, the end of multiple limit balls away from annular limit block is in rolling contact with the outer wall surface of push rod.

[0006] Further, the positioning frame is in C shape and the opening is arranged forward.

[0007] Further, the left end of the puncture needle body penetrates the inside of the positioning frame.

[0008] Further, the positioning frame is internally provided with a positioning clamping groove.

[0009] Further, the positioning clamping groove is internally clamped with a positioning clamping block fixedly connected with the left end of the puncture needle body.

[0010] Further, the limit ball away from the one end of the sealing piston penetrates the inside of the annular limiting block and extends to the outside.

[0011] Further, the arc wall surface of the annular limiting block deviated from the axis is uniformly provided with a plurality of spherical grooves corresponding to the positions of the plurality of limit balls and matched.

[0012] Further, the plurality of limit balls are movably installed in the plurality of spherical grooves.

[0013] Further, the arc wall surface of the annular limiting block deviated from the axis is fixedly connected with a rubber pad in contact with the inner cavity wall surface of the puncture needle barrel.

[0014] Further, the right end of the annular limiting block is fixedly connected with an annular baffle in contact with the right wall surface of the puncture needle barrel, and the right end of the push rod penetrates the inside of the annular baffle.

[0015] The utility model provides a kind of anesthetic puncture needle for anesthesiology department. It has the following beneficial effects:

[0016] 1, the anesthetic puncture needle for anesthesiology department, by setting up positioning mechanism and limiting mechanism, in initial state, positioning clamping block is clamped in the inside of the positioning clamping groove on positioning frame and the left end of puncture needle body is formed positioning effect, cooperation needle head protective sleeve is set on the right end needle head of puncture needle body, realize the position fixed and protection effect of the equipment to puncture needle body, when using, first forwardly push the left end of puncture needle body and drive positioning clamping block to move and remove the clamping state between the inside of positioning clamping groove, then move puncture needle body to left and make its needle head move from the inside of needle head protective sleeve, subsequent injection operation can be carried out, since annular limiting block is fixed in the left end of puncture needle barrel by clamping, medical staff is convenient to the annular limiting block and carries out cleaning and maintenance operation to the equipment, above operation is simple and practical, and the structure is reasonable and compact, solve the problem that push rod is inclined when the equipment is injected, also avoid to cause damage to puncture needle barrel inner cavity wall surface, improve the service life of the equipment.

[0017] 2、The anesthetic puncture needle for anesthesiology department, through the setting rubber pad, the rubber pad enhances the tightness of the connection between the outer lateral wall surface of the annular limiting block and the inner cavity wall surface of the puncture needle barrel through the deformation, and further improve the stability of the equipment structure.

[0018] 3、The anesthetic puncture needle for anesthesiology department, through the setting annular baffle, the annular baffle forms a limiting action with the annular limiting block through the right wall surface bottom of the puncture needle barrel, so as to avoid the annular limiting block to be clamped into the deep part of the puncture needle barrel and inconvenient to remove, improve the convenience of the equipment use. BRIEF DESCRIPTION OF DRAWINGS

[0019] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and do not have technical substantial significance to limit the implementation conditions of the utility model.

[0020] Fig. 1 The cross-sectional view of the anesthetic puncture needle for anesthesiology department of the utility model;

[0021] Fig. 2 The cross-sectional view of the positioning mechanism of the utility model;

[0022] Fig. 3 The cross-sectional view of the limiting mechanism of the utility model.

[0023] LEGEND:

[0024] 10, puncture needle barrel; 11, sealing piston; 12, push rod; 13, connecting hole; 14, puncture needle body; 15, needle head protective sleeve; 16, positioning frame; 17, positioning clamping groove; 18, positioning clamping block; 19, annular limiting block; 20, spherical groove; 21, limiting ball; 22, rubber pad; 23, annular baffle. DETAILED DESCRIPTION

[0025] An anesthetic puncture needle for anesthesiology department, such as Figs. 1-3As shown, including puncture needle cylinder 10 and set in the puncture needle cylinder 10 top side of the puncture needle body 14, puncture needle cylinder 10 left side of the middle of the opening of the connecting hole 13 and through the rubber hose with the left end of the puncture needle body 14 communication, puncture needle cylinder 10 inside set with its inner cavity matching the sealing piston 11, sealing piston 11 right end of the middle fixed installation of push rod 12, puncture needle cylinder 10 top end is provided with fixed puncture needle body 14 positioning mechanism, positioning mechanism includes the needle head protective sleeve 15 set in the right end of the outer side of the puncture needle body 14 and clamped on the left end of the outer wall of the puncture needle body 14 positioning frame 16, needle head protective sleeve 15 and positioning frame 16 two bottom and puncture needle cylinder 10 top surface corresponding position fixed connection, positioning frame 16 is C type and open forward setting, the left end of the puncture needle body 14 through the positioning frame 16 inside setting, positioning frame 16 inside set has a positioning clamping groove 17, positioning clamping groove 17 inside clamped with the left end of the outer wall of the puncture needle body 14 corresponding position fixed connection of positioning block 18, puncture needle cylinder 10 cavity rear side is provided for supporting push rod 12 limiting mechanism, limiting mechanism includes with puncture needle cylinder 10 cavity left part clamped annular limiting block 19 and with a plurality of limiting ball 21 evenly set on the one side of the circular arc wall surface of annular limiting block 19 deviated from the axis, a plurality of limiting ball 21 away from the one end of annular limiting block 19 and the outer wall surface of push rod 12 rolling contact, limiting ball 21 away from the one end of sealing piston 11 through the annular limiting block 19 inside extending to the outside, annular limiting block 19 deviated from the one side of the circular arc wall surface of the axis evenly distributed with a plurality of ball type groove 20 corresponding to the position and suitable for a plurality of limiting ball 21, a plurality of limiting ball 21 are respectively installed in a plurality of ball type groove 20 inside, annular limiting block 19 deviated from the one side of the circular arc wall surface of the axis fixedly connected with the rubber pad 22 of puncture needle cylinder 10 cavity wall surface contact, annular limiting block 19 right end fixedly connected with the right wall surface of puncture needle cylinder 10 contact of annular baffle 23, the right end of push rod 12 through the annular baffle 23 inside.

[0026] The utility model discloses a working principle: initial state, the positioning card block 18 is connected in the positioning card slot 17 inside on the positioning frame 16 to the left end of puncture needle body 14 forms the positioning effect, and the needle head protection cover 15 is set on the right end needle head department of puncture needle body 14, realizes the position fixed and the protection effect of this equipment to puncture needle body 14, when using, first push the left end of puncture needle body 14 and drive the positioning card block 18 to remove the connecting state between the inside of positioning card slot 17, then move puncture needle body 14 to the left and make its needle head from the inside of needle head protection cover 15 remove, can carry out the subsequent injection operation, because annular limiting block 19 is through the rolling contact of limiting ball 21 and the outer wall surface of push rod 12, forms the support limiting effect to push rod 12, makes push rod 12 not drive sealing piston 11 to incline and lead to the leakage of medicament during injection, and because annular limiting block 19 is fixed in the left end of puncture needle cylinder 10 through the connecting mode, the medical staff is convenient to the dismantling of annular limiting block 19 carries out the cleaning maintenance operation to this equipment, the above operation is simple and practical, and the structure is reasonable and compact, solves the problem that push rod 12 inclines when this equipment injects, also avoids the damage to the inner cavity wall surface of puncture needle cylinder 10, improves the service life of this equipment, rubber pad 22 enhances the tightness of the connection between the outer side wall surface of annular limiting block 19 and the inner cavity wall surface of puncture needle cylinder 10 through the deformation, and then improves the stability of the equipment structure, and annular baffle 23 forms the limiting action to annular limiting block 19 through with the right wall surface bottom of puncture needle cylinder 10, to avoid annular limiting block 19 to be stuck in the inside deep place of puncture needle cylinder 10 and not convenient to dismantle, improves the convenience of this equipment use.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. An anesthesia puncture needle for an anesthesia department, comprising a puncture needle barrel (10) and a puncture needle body (14) arranged on the top side of the puncture needle barrel (10), a connecting hole (13) is opened in the middle of the left side of the puncture needle barrel (10) and is connected to the left end of the puncture needle body (14) through a rubber hose, a sealing piston (11) adapted to its inner cavity is provided inside the puncture needle barrel (10), and a push rod (12) is fixedly installed in the middle of the right end of the sealing piston (11), characterized in that: The top end of the puncture needle cylinder (10) is provided with a positioning mechanism for fixing the puncture needle body (14), which comprises a needle head protective sleeve (15) sleeved on the outer side of the right end of the puncture needle body (14) and a positioning frame (16) clamped on the outer wall of the left end of the puncture needle body (14). The bottom ends of the needle head protective sleeve (15) and the positioning frame (16) are fixedly connected with the corresponding positions of the top surface of the puncture needle cylinder (10). The rear side of the inner cavity of the puncture needle cylinder (10) is provided with a limiting mechanism for supporting the push rod (12), which comprises an annular limiting block (19) clamped with the left part of the inner cavity of the puncture needle cylinder (10) and a plurality of limiting balls (21) uniformly arranged on the arc wall surface deviated from the axis of the annular limiting block (19). The ends of the plurality of limiting balls (21) away from the annular limiting block (19) are in rolling contact with the outer wall surface of the push rod (12).

2. The anesthetic puncture needle for an anesthetizing room as set forth in claim 1, characterized by: The positioning frame (16) is C-shaped and is provided with an opening facing forward. The left end of the puncture needle body (14) penetrates through the inside of the positioning frame (16). The inside of the positioning frame (16) is provided with a positioning clamping groove (17). The positioning clamping groove (17) is clamped with a positioning clamping block (18) fixedly connected with the corresponding position of the outer wall surface of the left end of the puncture needle body (14).

3. The anesthetic puncture needle for an anesthetic room according to claim 1, characterized by: The end of the limiting ball (21) away from the sealing piston (11) penetrates through the inside of the annular limiting block (19) and extends to the outside.

4. The anesthetic puncture needle for an anesthetic room according to claim 1, characterized by: The arc wall surface deviated from the axis of the annular limiting block (19) is uniformly provided with a plurality of spherical grooves (20) corresponding in position and adapted to the plurality of limiting balls (21). The plurality of limiting balls (21) are movably installed in the plurality of spherical grooves (20).

5. The anesthetic puncture needle for an anesthetic room according to claim 1, characterized by: The arc wall surface deviated from the axis of the annular limiting block (19) is fixedly connected with a rubber pad (22) in contact with the inner cavity wall of the puncture needle cylinder (10).

6. The anesthetic puncture needle for an anesthetic room according to claim 1, characterized by: The right end of the annular limiting block (19) is fixedly connected with an annular baffle (23) in contact with the right wall of the puncture needle cylinder (10). The right end of the push rod (12) penetrates through the inside of the annular baffle (23).

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