CN209826899U - Puncture catheter-placing guider with movable fixed probe - Google Patents
Puncture catheter-placing guider with movable fixed probe Download PDFInfo
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- CN209826899U CN209826899U CN201920090932.8U CN201920090932U CN209826899U CN 209826899 U CN209826899 U CN 209826899U CN 201920090932 U CN201920090932 U CN 201920090932U CN 209826899 U CN209826899 U CN 209826899U
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Abstract
The utility model relates to a puncture catheterization guider with a movable fixed probe. Aiming at the defects that the ultrasonic guided blood vessel puncture needs the experience of an operator and the cooperation of two hands, the needle point and the needle body are difficult to identify, and the puncture success rate is low. The utility model discloses the director mount is banded around ultrasonic probe and closely laminates with it, and the director main part is a cuboid, and the director main part sets up the chute in the side parallel with the ultrasonic probe both ends, and the director main part is the smooth surface in the two sides parallel with the ultrasonic probe bottom, and one of them smooth surface is in the coplanar with the ultrasonic probe bottom, and the chute of director main part is corresponding with the position of probe mark point. Only the depth of a target blood vessel is measured by an out-of-plane approach, puncture guides with different depths are selected, an operator displaces the blood vessel to be right below a probe marking point, and a puncture needle is placed in a side inclined groove of a guide body along the direction of the inclined groove, so that the puncture needle can be successfully and perfectly punctured and juxtaposed with the blood vessel.
Description
Technical Field
The utility model relates to a medical instrument, in particular to a puncture catheterization guider with a movable fixed probe.
Background
The vascular puncture catheterization is a common clinical invasive operation. The conventional vessel puncture catheter is mainly operated according to the artery pulsation and the anatomical position of the blood vessel, and the failure rate is high. The ultrasonic-guided vessel puncture catheterization can display the state of a vessel in real time, has high puncture success rate, does not radiate ultrasound, has small instrument volume and simple operation, and is accepted by more and more medical staff in recent years.
The blood vessel puncture catheterization under the ultrasonic guidance has two main modes of in-plane access and out-of-plane access in clinic.
The in-plane access has the advantages that: can display the long axis of the blood vessel, the needle point of the puncture needle and the needle body at the same time; the relative positions of the needle tip, the needle body and the blood vessel can be displayed in real time in the process of needle insertion.
out-of-plane access: the operation is closer to the traditional puncture path, the operation is simpler and more convenient, and the operator is more familiar; the adopted puncture path is short, and the defect that the space of a puncture part cannot accommodate an ultrasonic probe is avoided; the possibility of blood vessel puncture failure caused by in-plane access imaging errors is avoided.
At present, no related vessel puncture catheterization guider is used for guiding vessel puncture. The ultrasound-guided vascular puncture is usually completed according to the experience of an operator and the cooperation of two hands, and an in-plane approach is generally adopted. in-plane access disadvantages: the operator is required to be skilled to use the ultrasound to achieve perfect matching among the ultrasound, the blood vessel and the puncture needle; the puncture part needs a space for accommodating the ultrasonic probe, and the ultrasonic probe cannot be placed when the space is insufficient or the puncture operation cannot be carried out after the ultrasonic probe is placed; imaging of the perivascular muscle and surrounding tissue can be mistaken for blood vessels; when the puncture target vessel is small, imaging errors can cause puncture failure.
The out-of-plane approach is more difficult to place the vessel puncture than the in-plane approach, the whole puncture needle cannot be displayed, the needle point and the needle body are difficult to identify, the needle inserting angle and the needle inserting track of the puncture needle are difficult to fix, the position, the needle inserting angle and the needle inserting distance of a puncture target vessel need to be accurately calculated, an operator needs to be very skilled to use ultrasound so as to achieve perfect matching among ultrasound, the vessel and the puncture needle, and the success rate of puncture is low.
Disclosure of Invention
The utility model discloses to the aforesaid is not enough, sets up a tub director is put in puncture of activity fixed probe, uses this director to carry out supersound guide out-of-plane approach blood vessel puncture and puts the pipe, can perfectly solve needs accurate calculation puncture target blood vessel position and needle insertion angle and needle insertion distance, is difficult to fixed pjncture needle insertion angle and needle insertion orbit, is difficult to identify needle point and needle body, the high scheduling problem of the operation degree of difficulty. The out-of-plane approach vessel puncture catheterization guide is used for guiding puncture, the depth of a target vessel is measured only by the out-of-plane approach, the puncture introducers with different depths are selected, an operator displaces the vessel to be right below a probe mark point, and a puncture needle is placed in a chute on the side surface of the introducer body along the direction of the chute, so that the puncture needle can be smoothly and perfectly used for vessel puncture and catheterization.
The utility model discloses a realize through following technical scheme:
the utility model provides a puncture catheterization guider of activity fixed probe comprises director mount and director main part two parts, the director mount is banded around ultrasonic probe and closely laminates with it, the director main part is a cuboid, the director main part sets up the chute in the side parallel with ultrasonic probe both ends, the director main part is the smooth surface in the two sides parallel with ultrasonic probe bottom, one of them smooth surface is in the coplanar with ultrasonic probe bottom, chute (31) of director main part correspond with the position of probe mark point.
For better effect: the guide fixing frame is in a strip shape, surrounds the ultrasonic probe and is tightly attached with the ultrasonic probe, the guide fixing frame is in a cone shape with no bottom at the upper part and the lower part, the lower opening is smaller than the upper opening, and four corners of the lower opening are just attached with four corners of the bottom of the ultrasonic probe.
The distance between the two smooth surfaces of the guider body parallel to the bottom of the ultrasonic probe is 2.5-30 mm.
The guider main part side parallel sets up 1 ~ 3 chutes side by side, and the width and the degree of depth of chute are 0.75 ~ 3mm respectively.
The included angle between the inclined groove and the adjacent side line of the guider main body is 100-450
The guide fixing frame is made of elastic materials, and the guide main body is made of non-elastic materials.
The working principle of the utility model is as follows, as shown in figure 4, the ultrasonic probe is vertical to the skin, and the vertical distance A between the center of the target blood vessel and the skin is measured by utilizing the ultrasonic. The thickness of two corresponding smooth surfaces of the guide without the chute is B. The guide body is closely contacted with the ultrasonic probe through the guide fixing frame, and the bottom surface of the guide body and the bottom of the ultrasonic probe are positioned on the same plane; the surface of the guider body is at a right angle with the extension line of the ultrasonic beam of the ultrasonic probe, the distance from the upper opening of the side chute of the guider body to the ultrasonic velocity is Y, the vertical distance from the surface of the guider body to the center of the cross section of the blood vessel is X (X = A + B), the distance from the upper opening of the side chute of the guider body to the center of the cross section of the blood vessel is Z, three straight lines just form a closed right triangle, and Z is a right triangle2=X2+Y2. The center of the cross section of the target blood vessel is just the intersection point of two sides of the triangle. The guiding grooves with different angles are designed according to the triangle principle, and the center of the cross section of the target blood vessel is the intersection point of two sides of the triangle.
When the guide is used for guiding the blood vessel puncture, only the distance A from the ultrasonic probe to the center of the cross section of the blood vessel needs to be monitored by ultrasound, and the puncture guide with different depths X is selected for guiding the puncture.
Drawings
The present invention will be described in detail with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of another corresponding surface of fig. 1.
Fig. 3 is a schematic structural view of the guide holder.
Fig. 4 is a working principle diagram of the present invention.
Detailed Description
Example one
A puncture catheter-placing guider with a movably fixed probe is composed of a guider fixing frame 1 and a guider main body 3, wherein the guider fixing frame 1 is in a strip shape, surrounds an ultrasonic probe 2 and is tightly attached to the ultrasonic probe, the guider fixing frame is in a cone shape with no bottom at the upper part and no bottom at the lower part, the lower opening of the cone shape is smaller than the upper opening of the cone shape, and four corners of the lower opening of the cone shape are just attached to four corners of the bottom 21 of the ultrasonic probe. The guide body 3 is a cuboid, the guide body 3 is provided with a chute 31 on one side 33 parallel to the two ends of the ultrasonic probe, the width and the depth of the chute 31 are respectively 0.75mm, the guide body 3 is a smooth surface 32 on two sides parallel to the bottom 21 of the ultrasonic probe, and the distance between the two smooth surfaces 32 is 2.5 mm. One smooth surface 32 and the bottom 21 of the ultrasonic probe are positioned on the same plane, the inclined groove 31 of the guide body 3 corresponds to the position of the probe mark point 4, and the included angle between the inclined groove 31 and the adjacent side line of the guide body 3 is 100. The guide fixing frame 1 is made of elastic material, and the guide main body 3 is made of non-elastic material. Referring to fig. 4, the out-of-plane approach blood vessel puncture catheterization guide is used for guiding puncture, the operator only needs to measure the vertical distance A between the center of a target blood vessel and the skin 7 through the out-of-plane approach, selects the puncture guides with different depths X, displaces the blood vessel 8 to the position right below the probe mark point 4, places a puncture needle in the inclined groove 31 on the side surface of the guide main body 3 along the inclined groove 31 direction, when a high echo image appears in the cross section of the blood vessel of the ultrasonic display screen and the puncture needle 6 has blood return, the puncture needle is successfully punctured, then the inclined groove 31 is used for setting the side surface advantage of the guide main body 3, the guide can be displaced without affecting the position of the puncture needle, and then the puncture needle is placed along the blood vessel direction.
Example two
A puncture catheterization guider with a movably fixed probe consists of a guider fixing frame 1 and a guider main body 3, wherein the guider fixing frame 1 is a beltThe shapes of the ultrasonic probe and the ultrasonic probe are overlapped end to end and surround the ultrasonic probe 2 and are tightly attached to the ultrasonic probe. The guide body 3 is a cuboid, the guide body 3 is at the three chute 31 of two side 33 parallel with ultrasonic probe both ends parallel arrangement side by side, the width and the degree of depth of chute 31 are 3mm respectively, guide body 3 is smooth surface 32 in the two sides parallel with ultrasonic probe bottom 21, two smooth surfaces 32 are 30mm apart. One smooth surface 32 and the bottom 21 of the ultrasonic probe are positioned on the same plane, the inclined groove 31 of the guide body 3 corresponds to the position of the probe mark point 4, and the included angle between the inclined groove 31 and the adjacent side line of the guide body 3 is 450. The guide fixing frame 1 is made of elastic material, and the guide main body 3 is made of non-elastic material.
EXAMPLE III
A puncture catheter-placing guider of a movable fixed probe consists of a guider fixing frame 1 and a guider main body 3, wherein the guider fixing frame 1 is in a band shape and surrounds an ultrasonic probe 2 for two circles and is tightly attached with the ultrasonic probe. The guide body 3 is a cuboid, the guide body 3 is provided with two chutes 31 which are arranged in parallel side by side on two side surfaces 33 which are parallel to two ends of the ultrasonic probe, the width and the depth of each chute 31 are respectively 1.5mm, the guide body 3 is provided with two smooth surfaces 32 which are parallel to the bottom 21 of the ultrasonic probe, and the two smooth surfaces 32 are 15mm apart. One smooth surface 32 and the bottom 21 of the ultrasonic probe are positioned on the same plane, the inclined groove 31 of the guide body 3 corresponds to the position of the probe mark point 4, and the included angle between the inclined groove 31 and the adjacent side line of the guide body 3 is 300. The guide fixing frame 1 is made of elastic material, and the guide main body 3 is made of non-elastic material.
Claims (6)
1. The utility model provides a pipe guide is put in puncture of activity fixed probe which characterized in that: a puncture catheter-placing guider with a movably fixed probe is composed of a guider fixing frame (1) and a guider main body (3), wherein the guider fixing frame (1) is in a band shape, surrounds an ultrasonic probe (2) and is tightly attached to the ultrasonic probe, the guider main body (3) is in a cuboid shape, inclined grooves (31) are formed in one side surface or two side surfaces (33) of the guider main body (3) parallel to two ends of the ultrasonic probe, two surfaces of the guider main body (3) parallel to the bottom (21) of the ultrasonic probe are smooth surfaces (32), one smooth surface (32) and the bottom (21) of the ultrasonic probe are located on the same plane, and the inclined grooves (31) correspond to the positions of probe mark points (4).
2. A puncture introducer of an active fixation probe according to claim 1, wherein: the guider fixing frame (1) is in a conical shape with no bottom up and down and smaller lower opening than the upper opening after surrounding the ultrasonic probe (2), and four corners of the lower opening are just attached to four corners of the bottom (21) of the ultrasonic probe.
3. A puncture introducer of an active fixation probe according to claim 1, wherein: the distance between two smooth surfaces (32) of the guider main body (3) parallel to the bottom (21) of the ultrasonic probe is 2.5-30 mm.
4. A puncture introducer of an ambulatory fixed probe according to claim 1 or claim 2, wherein: the side (33) of the guider body (3) is parallelly provided with 1-3 chutes (31) in parallel, and the width and the depth of each chute (31) are 0.75-3 mm respectively.
5. A penetration and cannulation guide according to claim 4, wherein: the included angle between the inclined groove (31) and the adjacent side line of the guider main body (3) is 100-450。
6. A puncture introducer of an active fixation probe according to claim 1, wherein: the guide fixing frame (1) is made of elastic materials, and the guide main body (3) is made of non-elastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920090932.8U CN209826899U (en) | 2019-01-21 | 2019-01-21 | Puncture catheter-placing guider with movable fixed probe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920090932.8U CN209826899U (en) | 2019-01-21 | 2019-01-21 | Puncture catheter-placing guider with movable fixed probe |
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| CN209826899U true CN209826899U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010282A (en) * | 2021-11-17 | 2022-02-08 | 重庆大学附属三峡医院 | Puncture catheter placement guiding device based on blood vessel depth |
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2019
- 2019-01-21 CN CN201920090932.8U patent/CN209826899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114010282A (en) * | 2021-11-17 | 2022-02-08 | 重庆大学附属三峡医院 | Puncture catheter placement guiding device based on blood vessel depth |
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