CN211272730U - Anti-blood-blowout trocar device for hemodialysis - Google Patents
Anti-blood-blowout trocar device for hemodialysis Download PDFInfo
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- CN211272730U CN211272730U CN201922165568.XU CN201922165568U CN211272730U CN 211272730 U CN211272730 U CN 211272730U CN 201922165568 U CN201922165568 U CN 201922165568U CN 211272730 U CN211272730 U CN 211272730U
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- cylinder
- needle
- thick bamboo
- pressing cylinder
- top end
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Abstract
The utility model discloses a hemodialysis is with preventing trocar device of bloodletting, its technical scheme main points are: the needle comprises an upper needle cylinder and a lower needle cylinder, wherein the upper needle cylinder consists of a sleeve head, an upper pressing cylinder and an upper connecting cylinder, the sleeve head is arranged at the top end of the upper pressing cylinder, the upper connecting cylinder is arranged at the bottom end of the upper pressing cylinder, the upper pressing cylinder and the upper connecting cylinder are integrally formed, screw lug plates are horizontally and symmetrically fixed at the bottom end of the upper connecting cylinder, and screw holes are formed in the top end surface of each screw lug plate in a penetrating manner and penetrate through the bottom end surface; the lower needle cylinder consists of a lower pressing cylinder, a sealing cylinder and a lower connecting cylinder, the sealing cylinder is arranged at the top end of the lower pressing cylinder, the lower connecting cylinder is arranged at the bottom end of the lower pressing cylinder, the sealing cylinder and the lower connecting cylinder are integrally formed, a rubber pad is vertically and parallelly bonded in the sealing cylinder, and a bearing plate is horizontally fixed on the top end surface of the sealing cylinder; the trocar device for preventing blood blowout is used for hemodialysis, so that blood backflow is avoided when hemostasis is performed on a patient, operation is simple, and use is convenient.
Description
Technical Field
The utility model relates to a trocar technical field, in particular to blood is passed through with preventing trocar device of spouting blood.
Background
The trocar is a novel therapeutic tool applied by putting a traditional acupuncture needle into a piston-type cannula, the cannula is a special needle holder, is matched with a special acupuncture needle, stimulates and releases local muscles, regulates the organism function of viscera or a lesion area through nerve conduction to achieve the purpose of treatment clinically, and the medical trocar is a widely used medical instrument. Taking a common disposable intravenous infusion needle as an example, the disposable intravenous infusion needle mainly comprises a protective cap, a steel needle, a needle seat, a needle wing and a connecting pipe, a trocar is needed in hemodialysis, and during hemodialysis, blood spraying or backflow phenomena are easy to occur, and the conventional mode usually adopts external tools such as a flow stopping clamp to prevent spraying, which is very inconvenient.
The prior Chinese patent with publication number CN209378186U discloses a blood-ejection preventing trocar device for hemodialysis, which comprises a sleeve head, the lower end of the sleeve head is connected with a middle pipe in a threaded manner, the bottom of the middle pipe is connected with an adjusting sleeve, the middle of the inner cavity of the middle tube is fixedly sleeved with a first needle tube, the upper end of the first needle tube is inserted at the bottom of the sleeve head, and is connected with the top end of the sleeve head, the bottom of the adjusting sleeve is connected with a sleeve head, the bottom of the sleeve head is inserted with a second needle tube, an adjusting head is arranged on one side of the adjusting sleeve, a ball valve is arranged in the inner cavity of the adjusting sleeve close to one side of the adjusting head, a clamping wire is inserted into the other end of the ball valve, the adjusting sleeve is respectively divided into an upper group and a lower group, and the adjusting sleeves are mutually inserted, and the ball valve is positioned in the inner cavity of the group of adjusting sleeves at the top.
However, the conventional blood-leakage-preventing trocar device for hemodialysis uses a ball valve to seal in order to prevent blood from flowing back when in use, and the sealing mode is complex, so that the needle is easy to actuate to move in actual operation, and further the later use operation is not facilitated.
SUMMERY OF THE UTILITY MODEL
To solve the problems mentioned in the background art, the present invention provides a blood dialysis trocar device for preventing blood blowout to solve the problems mentioned in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions: a blood-ejection-preventing trocar device for hemodialysis comprises an upper needle cylinder and a lower needle cylinder, wherein the upper needle cylinder consists of a sleeve head, an upper pressing cylinder and an upper connecting cylinder, the sleeve head is arranged at the top end of the upper pressing cylinder, the upper connecting cylinder is arranged at the bottom end of the upper pressing cylinder, the upper pressing cylinder and the upper connecting cylinder are integrally formed, screw lug plates are horizontally and symmetrically fixed at the bottom end of the upper connecting cylinder, and screw holes are formed in the top end surface of each screw lug plate in a penetrating mode; the lower needle cylinder is composed of a lower pressing cylinder, a sealing cylinder and a lower connecting cylinder, the top end of the lower pressing cylinder is provided with the sealing cylinder, the bottom end of the lower pressing cylinder is provided with the lower connecting cylinder, the lower pressing cylinder, the sealing cylinder and the lower connecting cylinder are integrally formed, the sealing cylinder is vertically and parallelly bonded with a rubber pad, a bearing plate is horizontally fixed on the top end face of the sealing cylinder, a connecting screw rod is vertically and rotatably connected with the bearing plate through a bearing, and the top end thread of the connecting screw rod is installed in a screw hole of a screw lug plate.
By adopting the technical scheme, when the anti-blowout trocar device for hemodialysis is used, selection is carried out according to specific use requirements, when the connection is needed, the sleeve head is installed in the connecting screw sleeve at the top end of the upper needle cylinder through screw threads, then the screw hole on the screw plate at the bottom end of the lower connecting cylinder is in threaded connection with the connecting screw rod on the bearing plate at the top end of the sealing cylinder at the top end of the lower needle cylinder, and the connecting screw rod is rotated, thereby driving the upper needle cylinder to move downwards, penetrating the rubber pad on the lower needle cylinder by using the upper needle tube at the bottom end of the upper needle cylinder, and further penetrating the upper needle cylinder and the lower needle cylinder, when the connection is not needed, the upper needle cylinder moves upwards under the action of the spring by reversely rotating the connecting screw rod, therefore, the upper needle tube at the bottom end of the upper needle cylinder is pulled out of the rubber pad of the lower needle cylinder, and blood backflow is influenced by the rubber pad, so that the blood backflow is avoided, and the operation is simpler and the use is more convenient.
Preferably, the upper pressing cylinder and the upper connecting cylinder are internally provided with through holes which penetrate through the top end and the bottom end, needle sleeves are bonded in the upper pressing cylinder and the upper connecting cylinder, and upper needle tubes are bonded in the upper pressing cylinder and the needle sleeves of the upper connecting cylinder in a penetrating manner.
Through adopting above-mentioned technical scheme, all run through the top in last pressure section of thick bamboo and the last even section of thick bamboo and seted up the through-hole with the bottom for the needle tubing is connected in the installation, and needle tubing is fixed in the through-hole through the needle cover and is used for fixing needle tubing in the needle tubing of going up simultaneously.
Preferably, the lower pressing cylinder, the sealing cylinder and the lower connecting cylinder are provided with through holes in a penetrating mode, needle sleeves are bonded in the through holes of the lower pressing cylinder, the sealing cylinder and the lower connecting cylinder, and lower needle tubes are bonded in the needle sleeves of the lower pressing cylinder, the sealing cylinder and the lower connecting cylinder in a penetrating mode.
Through adopting above-mentioned technical scheme, a through-hole has been seted up in running through to a section of thick bamboo, a sealed section of thick bamboo and a section of thick bamboo even down for install the needle tubing, needle tubing crosses the needle cover and fixes at the through-hole and be used for fixed needle tubing down simultaneously.
Preferably, a spring is vertically fixed on the top surface of the bearing plate, and the top end of the spring is fixedly connected to the bottom surface of the lug plate.
By adopting the technical scheme, the upper needle cylinder can move upwards under the action of the spring by reversely rotating the connecting screw rod when the connection is not needed.
Preferably, the top surface of the upper pressing cylinder is fixed with a connecting threaded sleeve.
Through adopting above-mentioned technical scheme, the top surface of going up the pressure cylinder is fixed with the connection swivel nut and is used for changing the connecting sleeve head according to the demand.
Preferably, the bottom end of the sleeve head is provided with an external thread, and the external thread of the sleeve head is in threaded connection with the connecting threaded sleeve.
Through adopting above-mentioned technical scheme, the external screw thread of pullover with connect swivel nut threaded connection simple to operate and change the connection pullover according to the demand.
To sum up, the utility model discloses mainly have following beneficial effect: when the anti-blood-spraying trocar device for hemodialysis is used, selection is carried out according to specific use requirements, when communication is needed, sleeve heads are installed through threads in a connecting threaded sleeve at the top end of an upper needle cylinder, then the threaded holes in a threaded plate at the bottom end of a lower connecting cylinder are in threaded connection with connecting screws in a bearing plate at the top end of a sealing cylinder at the top end of a lower needle cylinder, the upper needle cylinder is driven to move downwards by rotating the connecting screws, an upper needle tube at the bottom end of the upper needle cylinder penetrates through rubber pads on the lower needle cylinder, the upper needle cylinder and the lower needle cylinder are communicated, when communication is not needed, the connecting screws are rotated reversely, the upper needle cylinder moves upwards under the action of a spring, the upper needle tube at the bottom end of the upper needle cylinder is pulled out of the rubber pads of the lower needle cylinder, blood backflow is influenced by the rubber pads, and blood backflow is.
Drawings
FIG. 1 is a schematic view of the overall structure of a hemodialysis anti-ejection trocar device;
FIG. 2 is an exploded view of the trocar assembly for hemodialysis with blood jet prevention;
FIG. 3 is a schematic view of an exploded structure of an upper needle barrel of a trocar assembly for hemodialysis with blood blowout prevention;
fig. 4 is a schematic view of the exploded structure of the lower needle cylinder in the blood transfusion blowout preventing trocar device.
Reference numerals: 1. an upper needle cylinder; 11. sleeving heads; 12. pressing the cylinder upwards; 13. connecting a threaded sleeve; 14. an upper connecting cylinder; 141. a through hole; 142. a screw lug plate; 15. feeding a needle tube; 2. a lower needle cylinder; 21. pressing the cylinder; 22. a sealing cylinder; 221. a bearing plate; 222. connecting a screw rod; 223. a spring; 224. a rubber pad; 23. a lower connecting cylinder; 24. a needle tube is arranged; 3. a needle sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, 2, 3 and 4, a blood-permeation blood-blowout-preventing trocar device comprises an upper needle cylinder 1 and a lower needle cylinder 2, wherein the upper needle cylinder 1 is composed of a sleeve head 11, an upper pressing cylinder 12 and an upper connecting cylinder 14, the sleeve head 11 is mounted at the top end of the upper pressing cylinder 12, the upper connecting cylinder 14 is mounted at the bottom end of the upper pressing cylinder 12, the upper pressing cylinder 12 and the upper connecting cylinder 14 are integrally formed, a lug plate 142 is horizontally and symmetrically fixed at the bottom end of the upper connecting cylinder 14, and a screw hole is formed in the top end surface of the lug plate 142 through the bottom end surface; the lower needle cylinder 2 is composed of a lower pressing cylinder 21, a sealing cylinder 22 and a lower connecting cylinder 23, the top end of the lower pressing cylinder 21 is provided with the sealing cylinder 22, the bottom end of the lower pressing cylinder 21 is provided with the lower connecting cylinder 23, the lower pressing cylinder 21, the sealing cylinder 22 and the lower connecting cylinder 23 are integrally formed, a rubber pad 224 is vertically and parallelly bonded in the sealing cylinder 22, a bearing plate 221 is horizontally fixed on the top end face of the sealing cylinder 22, a connecting screw 222 is vertically and rotatably connected in the bearing plate 221 through a bearing, and the top end thread of the connecting screw 222 is installed in a screw hole of a screw lug plate 142.
By adopting the technical scheme, when the blood transfusion preventing trocar device for hemodialysis is used, selection is carried out according to specific use requirements, when communication is required, the sleeve head 11 is installed in the connecting screw sleeve 13 at the top end of the upper needle cylinder 1 in a threaded manner, then the screw hole on the threaded plate 142 at the bottom end of the lower connecting cylinder 14 is in threaded connection with the connecting screw 222 on the bearing plate 221 at the top end of the sealing cylinder 22 at the top end of the lower needle cylinder 2, the upper needle cylinder 1 is driven to move downwards by rotating the connecting screw 222, the upper needle tube 15 at the bottom end of the upper needle cylinder 1 penetrates through the rubber pad 224 on the lower needle cylinder 2 so as to penetrate through the upper needle cylinder 1 and the lower needle cylinder 2, when communication is not required, the upper needle cylinder 1 moves upwards under the action of the spring 223 by reversely rotating the connecting screw 222, so that the upper needle tube 15 at the bottom end of the upper needle cylinder 1 is pulled out of the rubber pad 224 on the lower, thereby avoiding blood backflow, and then the operation is comparatively simple, and it is comparatively convenient to use.
Referring to fig. 3, through holes 141 are formed through the top end and the bottom end of each of the upper pressing cylinder 12 and the upper connecting cylinder 14, the needle sheath 3 is bonded in the upper pressing cylinder 12 and the upper connecting cylinder 14, and the upper needle tube 15 is bonded in the needle sheath 3 of the upper pressing cylinder 12 and the upper connecting cylinder 14.
Through adopting above-mentioned technical scheme, all run through the top in last pressure section of thick bamboo 12 and the last even section of thick bamboo 14 and seted up through-hole 141 with the bottom for the needle tubing 15 is connected in the installation, and needle tubing 15 is fixed in through-hole 141 through needle cover 3 and is used for fixing needle tubing 15 on the while.
Referring to fig. 4, a through hole 141 is formed through the lower pressing cylinder 21, the sealing cylinder 22 and the lower connecting cylinder 23, the needle sheath 3 is adhered in the through hole 141 of the lower pressing cylinder 21, the sealing cylinder 22 and the lower connecting cylinder 23, and the lower needle tube 24 is adhered in the needle sheath 3 of the lower pressing cylinder 21, the sealing cylinder 22 and the lower connecting cylinder 23.
Through adopting above-mentioned technical scheme, the through-hole 141 has been seted up in running through to pushing down a section of thick bamboo 21, sealed section of thick bamboo 22 and lower even section of thick bamboo 23 for install needle tube 24, needle tube 24 crosses needle cover 3 to fix and be used for fixing down needle tube 24 at through-hole 141 simultaneously.
Referring to fig. 4, a spring 223 is vertically fixed on the top surface of the bearing plate 221, and the top end of the spring 223 is fixedly coupled to the bottom surface of the lug plate 142.
By adopting the technical scheme, when the communication is not needed, the upper needle cylinder 1 can move upwards under the action of the spring 223 by reversely rotating the connecting screw 222.
Referring to fig. 3, a coupling screw 13 is fixed to the top surface of the upper pressure cylinder 12.
By adopting the technical scheme, the top surface of the upper pressing barrel 12 is fixedly provided with the connecting threaded sleeve 13 for replacing the connecting sleeve head 11 according to requirements.
Referring to fig. 3, the bottom end of the socket 11 is provided with an external thread, and the external thread of the socket 11 is threadedly mounted with the connection screw 13.
Through adopting above-mentioned technical scheme, the external screw thread of pullover 11 is connected simple to operate with connecting 13 threaded connection according to the demand change connecting pullover 11.
The using method comprises the following steps: when the blood penetration anti-blood-blowout trocar device is used, the selection is carried out according to specific use requirements, when communication is needed, the sleeve head 11 is installed in the connecting screw sleeve 13 at the top end of the upper needle cylinder 1 in a threaded manner, then the screw hole on the threaded plate 142 at the bottom end of the lower connecting cylinder 14 is in threaded connection with the connecting screw 222 on the bearing plate 221 at the top end of the sealing cylinder 22 at the top end of the lower needle cylinder 2, the upper needle cylinder 1 is driven to move downwards by rotating the connecting screw 222, the upper needle tube 15 at the bottom end of the upper needle cylinder 1 penetrates through the rubber pad 224 on the lower needle cylinder 2 to penetrate through the upper needle cylinder 1 and the lower needle cylinder 2, when communication is not needed, the upper needle cylinder 1 moves upwards under the action of the spring 223 by reversely rotating the connecting screw 222, so that the upper needle tube 15 at the bottom end of the upper needle cylinder 1 is pulled out of the rubber pad 224 on the lower needle cylinder 2, and then the operation is comparatively simple, and it is comparatively convenient to use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hemodialysis is with preventing trocar device of bloodletting, includes last syringe (1) and lower syringe (2), its characterized in that: the upper needle cylinder (1) consists of a sleeve head (11), an upper pressing cylinder (12) and an upper connecting cylinder (14), the sleeve head (11) is installed at the top end of the upper pressing cylinder (12), the upper connecting cylinder (14) is installed at the bottom end of the upper pressing cylinder (12), the upper pressing cylinder (12) and the upper connecting cylinder (14) are integrally formed, screw lug plates (142) are horizontally and symmetrically fixed at the bottom end of the upper connecting cylinder (14), and screw holes are formed in the top end face of each screw lug plate (142) in a penetrating mode and penetrate through the bottom end face; lower needle cylinder (2) are by pushing down a section of thick bamboo (21), a sealed section of thick bamboo (22) and even section of thick bamboo (23) down and constitute, and the top of pushing down a section of thick bamboo (21) is provided with sealed section of thick bamboo (22), the bottom of pushing down a section of thick bamboo (21) is provided with even section of thick bamboo (23) down, and pushes down a section of thick bamboo (21), sealed section of thick bamboo (22) and even section of thick bamboo (23) integrated into one piece down and make, the inside vertical parallel bonding of sealed section of thick bamboo (22) has rubber pad (224), and the top end face of sealed section of thick bamboo (22) is improved level and is fixed with bearing plate (221), be connected with connecting screw (222) through the vertical rotation of bearing in bearing plate (221), and the top screw thread of connecting screw (222).
2. A hemodialysis blood spray preventing trocar device according to claim 1, wherein: the needle sleeve is characterized in that through holes (141) are formed in the top end and the bottom end of the upper pressing cylinder (12) and the upper connecting cylinder (14) in a penetrating mode, needle sleeves (3) are bonded in the upper pressing cylinder (12) and the upper connecting cylinder (14), and upper needle tubes (15) are bonded in the needle sleeves (3) of the upper pressing cylinder (12) and the upper connecting cylinder (14) in a penetrating mode.
3. A hemodialysis blood spray prevention trocar device according to claim 2, wherein: the needle sleeve is characterized in that a through hole (141) is formed in the downward pressing cylinder (21), the sealing cylinder (22) and the downward connecting cylinder (23) in a penetrating mode, a needle sleeve (3) is bonded in the through hole (141) of the downward pressing cylinder (21), the sealing cylinder (22) and the downward connecting cylinder (23), and a lower needle tube (24) is bonded in the needle sleeve (3) of the downward pressing cylinder (21), the sealing cylinder (22) and the downward connecting cylinder (23) in a penetrating mode.
4. A hemodialysis blood spray prevention trocar device according to claim 3, wherein: a spring (223) is vertically fixed on the top surface of the bearing plate (221), and the top end of the spring (223) is fixedly connected to the bottom surface of the lug plate (142).
5. A hemodialysis blood spray prevention trocar device according to claim 4, wherein: and a connecting threaded sleeve (13) is fixed on the top surface of the upper pressing cylinder (12).
6. A hemodialysis blood spray prevention trocar device according to claim 5, wherein: the bottom end of the sleeve head (11) is provided with an external thread, and the external thread of the sleeve head (11) is in threaded connection with the connecting threaded sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165568.XU CN211272730U (en) | 2019-12-06 | 2019-12-06 | Anti-blood-blowout trocar device for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922165568.XU CN211272730U (en) | 2019-12-06 | 2019-12-06 | Anti-blood-blowout trocar device for hemodialysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211272730U true CN211272730U (en) | 2020-08-18 |
Family
ID=72028514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922165568.XU Expired - Fee Related CN211272730U (en) | 2019-12-06 | 2019-12-06 | Anti-blood-blowout trocar device for hemodialysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211272730U (en) |
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2019
- 2019-12-06 CN CN201922165568.XU patent/CN211272730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211206 |